10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)

þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended May 31, 2015

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                                                           to                                                          

Commission File Number         1-8399

WORTHINGTON INDUSTRIES, INC.

(Exact Name of Registrant as Specified in its Charter)

Ohio	31-1189815
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
200 Old Wilson Bridge Road, Columbus, Ohio	43085
(Address of Principal Executive Offices)	(Zip Code)
Registrant’s telephone number, including area code:	(614) 438-3210

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Name of Each Exchange on Which Registered
Common Shares, Without Par Value	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:     None 

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities

Act. Yes  þ    No   ¨

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes  ¨    No   þ

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.        Yes  þ    No  ¨

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files).        Yes  þ    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.            ¨

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  þ       Accelerated filer  ¨       Non-accelerated filer  ¨       Smaller reporting company  ¨

                                                                                  (Do not check if a smaller reporting company)

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act).        Yes  ¨    No  þ

The aggregate market value of the Common Shares (the only common equity of the Registrant) held by non-affiliates computed by reference to the closing price on the New York Stock Exchange on November 28, 2014, the last business day of the Registrant’s most recently completed second fiscal quarter, was approximately $1,784,231,417. For this purpose, executive officers and directors of the Registrant are considered affiliates.

Indicate the number of shares outstanding of each of the Registrant’s classes of common stock, as of the latest practicable date. On July 24, 2015, the number of Common Shares issued and outstanding was 65,408,865.

DOCUMENT INCORPORATED BY REFERENCE:

Selected portions of the Registrant’s definitive Proxy Statement to be furnished to shareholders of the Registrant in connection with the Annual Meeting of Shareholders to be held on September 24, 2015, are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent provided herein.

TABLE OF CONTENTS

SAFE HARBOR STATEMENT		ii
PART I
Item 1.	Business	1
Item 1A.	Risk Factors	11
Item 1B.	Unresolved Staff Comments	22
Item 2.	Properties	22
Item 3.	Legal Proceedings	24
Item 4.	Mine Safety Disclosures	24
Supplemental Item.	Executive Officers of the Registrant	24
PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	27
Item 6.	Selected Financial Data	30
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	32
Item 7A.	Quantitative and Qualitative Disclosures about Market Risk	56
Item 8.	Financial Statements and Supplementary Data	59
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	117
Item 9A.	Controls and Procedures	117
Item 9B.	Other Information	120
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	121
Item 11.	Executive Compensation	122
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	122
Item 13.	Certain Relationships and Related Transactions, and Director Independence	123
Item 14.	Principal Accountant Fees and Services	123
PART IV
Item 15.	Exhibits and Financial Statement Schedules	124
Signatures		125
Index to Exhibits		E-1

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SAFE HARBOR STATEMENT

Selected statements contained in this Annual Report on Form 10-K, including, without limitation, in “PART I –Item 1. – Business” and “PART II – Item 7. – Management’s Discussion and Analysis of Financial Condition and Results of Operations,” constitute “forward-looking statements” as that term is used in the Private Securities Litigation Reform Act of 1995 (the “Act”). Forward-looking statements reflect our current expectations, estimates or projections concerning future results or events. These statements are often identified by the use of forward-looking words or phrases such as “believe,” “expect,” “anticipate,” “may,” “could,” “intend,” “estimate,” “plan,” “foresee,” “likely,” “will,” “should” or other similar words or phrases. These forward-looking statements include, without limitation, statements relating to:

• outlook, strategy or business plans;

• the ability to correct performance issues at operations;

• future or expected growth, forward momentum, performance, sales, volumes, cash flows, earnings, balance sheet strengths, debt, financial condition or other financial measures;

• projected profitability potential, capacity, and working capital needs;

• demand trends for us or our markets;

• additions to product lines and opportunities to participate in new markets;

• pricing trends for raw materials and finished goods and the impact of pricing changes;

• anticipated capital expenditures and asset sales;

• anticipated improvements and efficiencies in costs, operations, sales, inventory management, sourcing and the supply chain and the results thereof;

• the ability to make acquisitions and the projected timing, results, benefits, costs, charges and expenditures related to acquisitions, newly-created joint ventures, headcount reductions and facility dispositions, shutdowns and consolidations;

• the alignment of operations with demand;

• the ability to operate profitably and generate cash in down markets;

• the ability to maintain margins and capture and maintain market share and to develop or take advantage of future opportunities, customer initiatives, new businesses, new products and new markets;

• expectations for our and our customers’ inventories, jobs and orders;

• expectations for the economy and markets or improvements therein;

• expected benefits from transformation plans, cost reduction efforts and other new initiatives;

• expectations for increasing volatility or improving and sustaining earnings, earnings potential, margins or shareholder value;

• effects of judicial rulings; and

• other non-historical matters.

Because they are based on beliefs, estimates and assumptions, forward-looking statements are inherently subject to risks and uncertainties that could cause actual results to differ materially from those projected. Any number of factors could affect actual results, including, without limitation, those that follow:

• the effect of national, regional and worldwide economic conditions generally and within major product markets, including a recurrent slowing economy;

• the effect of conditions in national and worldwide financial markets;

• product demand and pricing;

• changes in product mix, product substitution and market acceptance of our products;

• fluctuations in the pricing, quality or availability of raw materials (particularly steel), supplies, transportation, utilities and other items required by operations;

• effects of facility closures and the consolidation of operations;

• the effect of financial difficulties, consolidation and other changes within the steel, automotive, oil and gas, construction and other industries in which we participate;

• failure to maintain appropriate levels of inventories;

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• financial difficulties (including bankruptcy filings) of original equipment manufacturers, end-users and customers, suppliers, joint venture partners and others with whom we do business;

• the ability to realize targeted expense reductions from headcount reductions, facility closures and other cost reduction efforts;

• the ability to realize other cost savings and operational, sales and sourcing improvements and efficiencies, and other expected benefits from transformation initiatives, on a timely basis;

• the overall success of, and the ability to integrate, newly-acquired businesses and joint ventures, maintain and develop their customers, and achieve synergies and other expected benefits and cost savings therefrom;

• capacity levels and efficiencies, within facilities, within major product markets and within the industry as a whole;

• the effect of disruption in the business of suppliers, customers, facilities and shipping operations due to adverse weather, casualty events, equipment breakdowns, acts of war or terrorist activities or other causes;

• changes in customer demand, inventories, spending patterns, product choices, and supplier choices;

• risks associated with doing business internationally, including economic, political and social instability, foreign currency exposure and the acceptance of our products in markets;

• the ability to improve and maintain processes and business practices to keep pace with the economic, competitive and technological environment;

• the outcome of adverse claims experience with respect to workers’ compensation, product recalls or product liability, casualty events or other matters;

• deviation of actual results from estimates and/or assumptions used by us in the application of our significant accounting policies;

• level of imports and import prices in our markets;

• the impact of judicial and governmental agency rulings as well as the impact of governmental regulations, both in the United States and abroad, including those adopted by the United States Securities and Exchange Commission and other governmental agencies as contemplated by the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010;

• the effect of changes to healthcare laws in the United States, which may increase our healthcare and other costs and negatively impact our financial results and operations; and

• other risks described from time to time in the filings of Worthington Industries, Inc. with the United States Securities and Exchange Commission, including those described in “PART I – Item 1A. – Risk Factors” of this Annual Report on Form 10-K.

We note these factors for investors as contemplated by the Act. It is impossible to predict or identify all potential risk factors. Consequently, you should not consider the foregoing list to be a complete set of all potential risks and uncertainties. Any forward-looking statements in this Annual Report on Form 10-K are based on current information as of the date of this Annual Report on Form 10-K, and we assume no obligation to correct or update any such statements in the future, except as required by applicable law.

iii

PART I

Item 1. – Business

General Overview

Worthington Industries, Inc. is a corporation formed under the laws of the State of Ohio (individually, the “Registrant” or “Worthington Industries” or, collectively with the subsidiaries of Worthington Industries, Inc., “we,” “our,” “Worthington” or the “Company”). Founded in 1955, Worthington is primarily a diversified metals manufacturing company, focused on value-added steel processing and manufactured metal products. Our manufactured metal products include: pressure cylinders for liquefied petroleum gas (“LPG”), compressed natural gas (“CNG”), oxygen, refrigerant and other industrial gas storage; hand torches and filled hand torch cylinders; propane-filled camping cylinders; helium-filled balloon kits; steel and fiberglass tanks and processing equipment primarily for the oil and gas industry; cryogenic pressure vessels for liquefied natural gas (“LNG”) and other gas storage applications; engineered cabs and operator stations and cab components; steel pallets and racks; and, through joint ventures, suspension grid systems for concealed and lay-in panel ceilings; laser welded blanks; light gauge steel framing for commercial and residential construction; and current and past model automotive service stampings.

Worthington is headquartered at 200 Old Wilson Bridge Road, Columbus, Ohio 43085, telephone (614) 438-3210. The common shares of Worthington Industries are traded on the New York Stock Exchange under the symbol WOR.

Worthington Industries maintains an Internet web site at www.worthingtonindustries.com. This uniform resource locator, or URL, is an inactive textual reference only and is not intended to incorporate Worthington Industries’ web site into this Annual Report on Form 10-K. Worthington Industries’ Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports, filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as well as Worthington Industries’ definitive annual meeting proxy materials filed pursuant to Section 14 of the Exchange Act, are available free of charge, on or through the Worthington Industries web site, as soon as reasonably practicable after such material is electronically filed with, or furnished to, the Securities and Exchange Commission (the “SEC”).

Segments

As of May 31, 2015, we, together with our unconsolidated affiliates, operated 83 manufacturing facilities in 26 states and 11 countries. A total of 33 of these facilities are operated by wholly-owned and consolidated subsidiaries of the Company. The remaining facilities are operated by our consolidated and unconsolidated joint ventures.

Our operations are managed principally on a products and services basis and are comprised of three primary operating segments which correspond with our reportable business segments: Steel Processing, Pressure Cylinders and Engineered Cabs. The Steel Processing operating segment consists of the Worthington Steel business unit (“Worthington Steel”) which operates 12 main facilities; Precision Specialty Metals, Inc. (“PSM”), a specialty stainless processor located in Los Angeles, California; and Worthington Steelpac Systems, LLC (“SteelPac”), which designs and manufactures recyclable steel packaging solutions for the movement of products; and also includes two consolidated joint ventures: Spartan Steel Coating, LLC (“Spartan”), which operates a cold-rolled hot dipped galvanizing line in Monroe, Michigan; and TWB Company, L.L.C. (“TWB”), which operates a laser welded blank business headquartered in Monroe, Michigan. The Pressure Cylinders operating segment consists of the Worthington Cylinders business unit (“Worthington Cylinders”) which operates 17 main facilities, and also includes three consolidated joint ventures: India-based Worthington Nitin Cylinders Limited (“Worthington Nitin Cylinders”), a manufacturer of high-pressure, seamless steel cylinders; Turkey-based Worthington Aritaş Basinçli Kaplar Sanayi (“Worthington Aritas,”), a manufacturer of cryogenic

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pressure vessels for LNG and other gas storage applications; and Utah-based dHybrid Systems, LLC (“dHybrid”), a manufacturer of CNG fuel systems for large trucks. The Engineered Cabs operating segment consists of the Worthington Industries Engineered Cabs business unit (“Engineered Cabs”), formerly Angus Industries, Inc. Engineered Cabs operates 3 main facilities.

Our remaining operating segments include Construction Services and Worthington Energy Innovations (“WEI”), which are disclosed in the Other category for segment reporting purposes, as they do not meet the quantitative thresholds for separate disclosure. Certain income and expense items not allocated to our operating segments are also included in the Other category as is the activity related to the wind down of Construction Services.

We hold equity positions in 13 active joint ventures, which are further discussed in the Joint Ventures section below. Of these, six are consolidated with their operating results reported within our reportable business segments as follows: Spartan and TWB in Steel Processing; dHybrid, Worthington Aritas and Worthington Nitin Cylinders in Pressure Cylinders; and WEI in Other.

During the fiscal year ended May 31, 2015 (“fiscal 2015”), the Steel Processing, Pressure Cylinders and Engineered Cabs operating segments served approximately 1,000, 4,500, and 100 customers, respectively, located primarily in the United States. Foreign operations accounted for approximately 6% of consolidated net sales during fiscal 2015 and were comprised primarily of sales to customers in Europe. No single customer accounted for over 10% of consolidated net sales in fiscal 2015.

Refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note N – Segment Data” of this Annual Report on Form 10-K for a full description of our reportable business segments.

Recent Developments

On July 31, 2014, the Company acquired the assets of James Russell Engineering Works, Inc. (“JRE”) for cash consideration of $1.6 million. The JRE business manufactures aluminum and stainless steel cryogenic transport trailers used for hauling liquid oxygen, nitrogen, argon, hydrogen and LNG for producers and distributors of industrial gases and LNG. The acquired assets became part of our Pressure Cylinder operating segment upon closing.

On August 1, 2014, the Company acquired the assets of Midstream Equipment Fabrication LLC (“MEF”) for cash consideration of $38.4 million and the assumption of certain liabilities. The MEF business manufactures patented horizontal heated and high pressure separators used to separate oilfield fluids and gas. The acquired assets became part of our Pressure Cylinder operating segment upon closing.

On October 20, 2014, we acquired a 79.59% ownership interest in dHybrid, a manufacturer of CNG systems for large trucks, for total consideration of $15.9 million, including contingent consideration with an estimated fair value of $4.0 million, and the assumption of certain liabilities. The remaining 20.41% was retained by a founding member. The acquired business became part of our Pressure Cylinders operating segment upon closing.

On November 13, 2014, the Company’s consolidated laser welded blank joint venture, TWB, opened a new facility in Cambridge, Ontario. The facility will initially operate one laser welding line with the capacity to produce two million tailor welded blanks per year.

On January 16, 2015, the Company acquired the assets of Rome Strip Steel Company, Inc. (“Rome Strip Steel”) for cash consideration of $54.5 million after an adjustment for estimated working capital. Located in Rome, New York, the Rome Strip Steel business manufactures cold rolled steel to extremely tight tolerances. The acquired assets became part of our Steel Processing operating segment upon closing.

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On January 30, 2015, the Company sold the Advanced Component Technologies, Inc. (“ACT”) business within Engineered Cabs located in Northwood, Iowa.

On March 6, 2015, WAVE, Worthington’s joint venture with Armstrong World Industries, Inc., acquired the Axiom^® and Serpentina^® ceiling system manufacturing capabilities from Fry Reglet Corporation.

On March 24, 2015, the Company announced its decision to close its Engineered Cabs facility in Florence, South Carolina, and a workforce reduction in several oil and gas equipment locations due to slowing demand. These decisions led to non-cash impairment charges of $81.6 million for goodwill and other long-lived assets in Engineered Cabs and a restructuring charge of $2.2 million for the estimated severance expense covering those affected by the workforce reductions within Pressure Cylinders.

On April 23, 2015, the Company amended its five-year, revolving credit facility, increasing commitments under the facility by $75.0 million, to a total of $500.0 million, and extending the maturity by three years to April 2020.

On May 1, 2015, the Company sold the operating assets and real property related to its Pressure Cylinders facility in New Albany, Mississippi, which manufactures impact extruded steel and aluminum components and high pressure aluminum cylinders. These assets were sold to companies affiliated with Thunderbird LLC, for an aggregate sale price of approximately $8.4 million.

On June 26, 2015, the Company announced the closure of its stainless steel business, PSM. The Company is in the process of winding down operations and expects to complete the exit of the facility by December 2015. The Company estimates that the closure will result in restructuring charges in the range of $1.0 million to $1.5 million, primarily due to severance costs.

Steel Processing

Our Steel Processing operating segment consists of the Worthington Steel business unit, which includes PSM and SteelPac and our consolidated joint ventures, Spartan and TWB. For fiscal 2015, fiscal 2014, and fiscal 2013, the percentage of consolidated net sales generated by Steel Processing was approximately 63%, 62%, and 61%, respectively.

Worthington Steel is one of the largest independent intermediate processors of flat-rolled steel in the United States. It occupies a niche in the steel industry by focusing on products requiring exact specifications. These products cannot typically be supplied as efficiently by steel mills to the end-users of these products.

The Steel Processing operating segment, including Spartan and TWB, operates 21 manufacturing facilities located in Ohio (6), Mexico (4), Alabama (2), Indiana (2), Michigan (2), and one each in California, New York, Pennsylvania, Tennessee and Canada.

Our Steel Processing operating segment serves approximately 1,000 customers, principally in the agricultural, appliance, automotive, construction, hardware, HVAC, lawn and garden, leisure and recreation, office furniture, office equipment, container, and aerospace markets. Automotive-related customers have historically represented approximately half of Steel Processing’s net sales. No single customer represented greater than 10% of Steel Processing’s net sales during fiscal 2015.

Our Steel Processing operating segment buys coils of steel from integrated steel mills and mini-mills and processes them to the precise type, thickness, length, width, shape and surface quality required by customer specifications. Computer-aided processing capabilities include, among others:

• cold reducing, which achieves close tolerances of thickness;

• configured blanking, which stamps steel into specific shapes;

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• cutting-to-length, which cuts flattened steel sheets to exact lengths;

• dry-lubing, the process of coating steel with a dry, soap-based lubricant;

• edging, which conditions the edges of the steel by imparting round, smooth or knurled edges;

• hot-dipped galvanizing, which coats steel with zinc and zinc alloys through a hot-dip process;

• hydrogen annealing, a thermal process that changes the hardness and certain metallurgical characteristics of steel;

• laser welding, which joins metal blanks and coils with different thicknesses, coatings or material strength;

• pickling, a chemical process using an acidic solution to remove surface oxide which develops on hot-rolled steel;

• primacoat, which is a high-lubricity, acrylic-based coating;

• slitting, which cuts steel coils or steel sheets to specific widths;

• oscillate slitting, a slitting process that spools together several narrow coils welded end to end into one larger coil;

• temper rolling, which is the process of light cold-rolling sheet steel;

• tension leveling, a method of applying pressure to achieve precise flatness tolerances; and

• non-metallic coating, including acrylic and paint coating.

Our Steel Processing operating segment also toll processes steel for steel mills, large end-users, service centers and other processors. Toll processing is different from typical steel processing in that the mill, end-user or other party retains title to the steel and has the responsibility for selling the end product. Toll processing enhances Worthington Steel’s participation in the market for wide sheet steel and large standard orders, which is a market generally served by steel mills rather than by intermediate steel processors.

The steel processing industry is fragmented and highly competitive. There are many competitors, including other independent intermediate processors. Competition is primarily on the basis of price, product quality and the ability to meet delivery requirements. Technical service and support for material testing and customer-specific applications enhance the quality of products (see “Business – Technical Services”). However, the extent to which technical service capability has improved Worthington Steel’s competitive position has not been quantified. Worthington Steel’s ability to meet tight delivery schedules is, in part, based on the proximity of our facilities to customers, suppliers and one another. The extent to which plant location has impacted Worthington Steel’s competitive position has not been quantified. Processed steel products are priced competitively, primarily based on market factors, including, among other things, market pricing, the cost and availability of raw materials, transportation and shipping costs, and overall economic conditions in the United States and abroad.

On July 31, 2013, we purchased an additional 10% interest in TWB, increasing our ownership to a 55% controlling interest. As a result, TWB’s results have been consolidated within Steel Processing since the acquisition date. TWB operates three facilities in the United States, with one facility in each of Alabama, Michigan and Tennessee, and four facilities in Mexico.

During the first quarter of fiscal 2014, we made certain organizational changes impacting the internal reporting and management structure of SteelPac. As a result of these organizational changes, management responsibilities and internal reporting were realigned under Steel Processing. SteelPac designs and manufactures reusable custom steel platforms, racks and pallets for supporting, protecting and handling products throughout the shipping process for customers in industries such as automotive, lawn and garden and recreational vehicles. SteelPac operates three facilities, with one facility in each of Indiana, Ohio and Pennsylvania.

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Pressure Cylinders

The Pressure Cylinders operating segment consists of the Worthington Cylinders business unit and three consolidated joint ventures: India-based Worthington Nitin Cylinders, a manufacturer of high-pressure, seamless steel cylinders for CNG and other industrial gas storage applications; Worthington Aritas, one of Europe’s leading cryogenic technology companies for LNG and other gas storage applications; and dHybrid, which manufactures CNG fuel systems for large trucks out of a facility in Salt Lake City, Utah. The percentage of consolidated net sales generated by Pressure Cylinders was approximately 30% in each of fiscal 2015, fiscal 2014 and fiscal 2013.

Our Pressure Cylinders operating segment manufactures and sells filled and unfilled pressure cylinders, tanks, hand torches, and oil and gas equipment along with various accessories and related products for diversified end-use market applications. The following is a description of these markets:

• Industrial Products: This market sector includes high pressure and acetylene cylinders for industrial gases, refrigerant and certain propane gas cylinders, hand torch cylinders and joining products such as solder and brazing rods and other specialty products. Cylinders in these markets are generally sold to gas producers, cylinder exchangers and industrial distributors. Industrial cylinders hold fuel for uses such as cutting, brazing and soldering, semiconductor production, and beverage delivery. Refrigerant gas cylinders are used to hold refrigerant gases for commercial, residential and automotive air conditioning and refrigeration systems. LPG cylinders hold fuel for barbeque grills, recreational vehicle equipment, residential and light commercial heating systems, industrial forklifts and commercial/residential cooking (the latter, generally outside North America). Specialty products include a variety of fire suppression and chemical tanks.

• Consumer Products: This market sector includes propane-filled cylinders for torches, camping stoves and other applications, hand held torches and accessories, and Balloon Time^® helium-filled balloon kits. These products are sold primarily to mass merchandisers and distributors.

• Alternative Fuels: This market sector includes composite and steel cylinders for containment of CNG and hydrogen for automobiles, buses, and light-duty trucks, propane/autogas cylinders for automobiles and light- and medium-duty trucks, as well as CNG fuel systems for buses, refuse and heavy-duty trucks.

• Oil and Gas Equipment: This market sector includes steel and fiberglass storage tanks, separation equipment, controls and other products primarily used in the energy markets, including oil and gas and nuclear. This sector also includes hoists and other marine products which are used principally in shipyard lift systems. This sector also leverages its manufacturing competencies to produce pressure vessels, atmospheric tanks, controls and various custom machined components for other industrial and agricultural end markets. This market sector was formed in fiscal 2013 as a result of the acquisition of Westerman, Inc. on September 17, 2012, and also include the assets acquired from Palmer Mfg. & Tank, Inc, Steffes Corporation and MEF.

• Cryogenics: This market sector includes cryogenic equipment systems, and service for the transportation, storage and use of liquefied gases such as LNG and industrial gases such as liquid nitrogen, oxygen, argon, and hydrogen. Key end markets include LNG storage and transportation, LNG onboard fueling for marine applications, and storage and transportation of industrial gases for manufacturing and healthcare. Pressure Cylinders entered this sector through new product development of industrial gas cryogenic cylinders, its joint venture with Aritas in Istanbul, Turkey which focuses on highly engineered tanks and systems, and the acquisition of cryogenic trailer manufacturer, JRE, based in Boston.

While a large percentage of Pressure Cylinders sales are made to major accounts, this operating segment serves approximately 4,500 customers. No single customer represented greater than 10% of net sales for the Pressure Cylinders operating segment during fiscal 2015.

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The Pressure Cylinders operating segment, including the Worthington Nitin Cylinders, Worthington Aritas and dHybrid consolidated joint ventures, operates 20 manufacturing facilities located in California, Kansas (2), Massachusetts, North Carolina, North Dakota, Ohio (5), Oklahoma, Utah, Wisconsin, Austria, India, Poland (2), Portugal and Turkey.

For sales in the United States and Canada, high-pressure and low-pressure cylinders, are primarily manufactured in accordance with United States Department of Transportation and Transport Canada specifications. Outside the United States and Canada, cylinders are manufactured according to European norm specifications, as well as various other international standards. Other products are produced to applicable industry standards including, as applicable, those standards issued by the American Petroleum Institute, ASME and UL.

Worthington Cylinders has one principal domestic competitor in the low-pressure non-refillable refrigerant market and one principal domestic competitor in the low-pressure LPG cylinder market. There are also several foreign competitors in these markets. We believe that Worthington Cylinders has the largest market share in its domestic low-pressure cylinder markets. In the other cylinder markets, there are several competitors. We believe that Worthington Cylinders is a leading supplier to the European markets for LNG vessels and for both the high-pressure cylinders and the low-pressure non-refillable cylinders. Worthington Cylinders generally has a strong competitive position for its industrial, energy, retail and specialty products, but competition varies on a product-by-product basis, and geographically for energy products. As with our other operating segments, competition is based upon price, service and quality.

The Pressure Cylinders operating segment uses the trade name “Worthington Cylinders” to conduct business and the registered trademark “Balloon Time^®” to market helium-filled balloon kits; the registered trademark “Bernzomatic^®” to market certain fuel cylinders and hand held torches; the trademark “WORTHINGTON PRO-GRADE” to market certain LPG cylinders, hand torches and camping fuel cylinders; and the registered trademarks “MAP-PRO^®” and “Pro-Max^®” to market certain hand torch cylinders. During the second quarter of fiscal 2014, the Company committed to a re-branding initiative to brand substantially all of our businesses under the Worthington Industries name. In connection with the branding strategy, the Company discontinued the use of non-Worthington trade names except for retail brand names such as those referenced above and those related to our joint ventures.

In connection with the acquisition of the propane fuel cylinders business of The Coleman Company, Inc. (“Coleman Cylinders”) in fiscal 2012, we executed a trademark license agreement whereby we are required to make minimum annual royalty payments of approximately $2.0 million in exchange for the exclusive right to use certain Coleman trademarks within the United States and Canada in connection with our operation of the acquired business.

Engineered Cabs

The Engineered Cabs operating segment consists of the Worthington Industries Engineered Cabs business unit, formerly Angus Industries, Inc., which was acquired on December 29, 2011. For fiscal 2015, fiscal 2014, and fiscal 2013, the percentage of consolidated net sales generated by Engineered Cabs was approximately 6%, 7%, and 9%, respectively.

Engineered Cabs is headquartered in Columbus, Ohio and operates three primary manufacturing facilities, one in each South Carolina, South Dakota and Tennessee, which are located near key assembly locations of original equipment manufacturers. The Company is in the process of closing its facility in Florence, South Carolina. The majority of the business will be moved to the facility in Greeneville, Tennessee.

Engineered Cabs is a non-captive designer and manufacturer of high-quality, custom-engineered open and enclosed cabs and operator stations and custom fabrications for heavy mobile equipment used primarily

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in the agricultural, construction, forestry, mining, military, and various other industries. Engineered Cabs’ product design, engineering support and broad manufacturing capabilities enable it to produce cabs and structures used in products ranging from small utility equipment to the large earthmovers.

In addition to its engineered cab products, this operating segment has the capability to provide a full suite of complementary products such as machined structural components, complex and painted weldments, engine doors, boom components and complete frames. Engineered Cabs has the manufacturing capability for:

• Steel laser cutting;

• Steel bending and forming;

• Roll-form tube curving and bending;

• Machining;

• Welding – robotic and manual;

• Automated steel product cleaning and E-coating;

• Top coat painting; and

• Assembly.

Engineered Cabs produces products for over 150 different equipment platforms for approximately 100 customers. For fiscal 2015, Engineered Cabs’ top three customers represented approximately 78% of the operating segment’s total net sales. Its production levels can run from small and medium production volumes through high volume productions.

Engineered Cabs competes primarily with a handful of primary non-captive producers of engineered cabs in the United States, although there are numerous other suppliers who can perform some of the functions supplied by the Company. Some customers can also produce operator cabs in-house. The Company believes its competitive strengths include its design and engineering capabilities and its broad manufacturing capabilities, which allow it to provide a fully-integrated complete cab, and its ability to provide cabs at a more effective cost than customers can produce in-house. Competition is based on price, quality, delivery and service.

Key supplies for this operating segment include steel sheet and plate, stampings, steel tubing, hardware, controls, wiper systems, glazing materials (glass, polycarbonate), perishables (paint, urethane, caulk), electrical materials, HVAC systems and aesthetic materials (acoustical trim, plastics, foam), which are available from a variety of sources.

Other

The Other category includes the Construction Services and WEI operating segments, which do not meet the quantitative thresholds for separate disclosure, as well as other corporate-related entities.

Construction Services.    The Company is in the process of winding down its Military Construction business unit, whose operations involve the supply and construction of single family housing, with a focus on military housing.

Worthington Energy Innovations.    This operating segment is comprised of our 75%-owned and consolidated joint venture, WEI, which is described in more detail in the Joint Ventures section below.

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Segment Financial Data

Financial information for the reportable business segments is provided in “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note N – Segment Data”.

Financial Information About Geographic Areas

For fiscal 2015, our foreign operations represented 6% of consolidated net sales, (2)% of pre-tax earnings attributable to controlling interest and 14% of consolidated net assets. During fiscal 2015, fiscal 2014 and fiscal 2013, we had consolidated operations in Austria, Canada (through February 2014), the Czech Republic (through October 2012), India, Mexico (beginning July 2013), Poland, Portugal, Turkey (beginning January 2014) and the United States. During these same three fiscal years, our unconsolidated joint ventures had operations in China, France, Mexico, Spain (through December 2013), the United Kingdom and the United States. Summary information about our foreign operations, including net sales and fixed assets by geographic region, is provided in “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note A – Summary of Significant Accounting Policies – Risks and Uncertainties” and “Note N – Segment Data” of this Annual Report on Form 10-K.

Suppliers

The primary raw material purchased by Worthington is steel. We purchase steel in large quantities at regular intervals from major primary producers of steel, both domestic and foreign. The amount purchased from any particular supplier varies from year to year depending on a number of factors including market conditions, then current relationships and prices and terms offered. In nearly all market conditions, steel is available from a number of suppliers and generally any supplier relationship or contract can and has been replaced with little or no significant interruption to our business. During fiscal 2015, we purchased approximately 2.2 million tons of steel (83% hot-rolled, 13% cold-rolled and 4% galvanized) on a consolidated basis. In the Steel Processing operating segment, steel is primarily purchased and processed based on specific customer orders. The Pressure Cylinders and Engineering Cabs operating segments purchase steel to meet production schedules. For certain raw materials, there are more limited suppliers – for example, helium and zinc, which are generally purchased at market prices. Since there are a limited number of suppliers in the helium and zinc markets, if delivery from a major supplier is disrupted due to a force majeure type occurrence, it may be difficult to obtain an alternative supply. Raw materials are generally purchased in the open market on a negotiated spot-market basis at prevailing market prices. Supply contracts are also entered into, some of which have fixed pricing and some of which are indexed (monthly or quarterly). During fiscal 2015, we purchased steel from the following major suppliers, in alphabetical order: AK Steel Corporation; ArcelorMittal; Essar Steel Algoma Inc.; NLMK USA; North Star BlueScope Steel, LLC; Nucor Corporation; Steel Dynamics, Inc.; and United States Steel Corporation (“U.S. Steel”). Major suppliers of aluminum to the Pressure Cylinders operating segment in fiscal 2015 were, in alphabetical order: Alcoa; DK Tech Co; Rio Tinto Alcan; and Sapa Group. Major suppliers of zinc to the Steel Processing operating segment were, in alphabetical order: Considar Metal Marketing Inc. (a/k/a HudBay); Glencore Ltd; Teck Cominco Limited; and U.S. Zinc. Approximately 34 million pounds of zinc were purchased in fiscal 2015. We believe our supplier relationships are good.

Technical Services

We employ a staff of engineers and other technical personnel and maintain fully equipped laboratories to support operations. These facilities enable verification, analysis and documentation of the physical, chemical, metallurgical and mechanical properties of raw materials and products. Technical service personnel also work in conjunction with the sales force to determine the types of flat-rolled steel required for customer needs. Engineers at Engineered Cabs design cabs and cab manufacturing processes. To provide these services, we maintain a continuing program of developmental engineering with respect to product characteristics and performance under varying conditions. Laboratory facilities also perform metallurgical and

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chemical testing as dictated by the regulations of the United States Department of Transportation, Transport Canada, and other associated agencies, along with International Organization for Standardization (ISO) and customer requirements. An IASI (International Accreditations Service, Incorporated) accredited product testing laboratory supports these efforts.

Seasonality and Backlog

Sales are generally strongest in the fourth quarter of our fiscal year as our operating segments are generally operating at seasonal peaks. Historically, sales have generally been weaker in the third quarter of our fiscal year, primarily due to reduced activity in the building and construction industry as a result of inclement weather, as well as customer plant shutdowns in the automotive industry due to holidays. We do not believe backlog is a significant indicator of our business.

Employees

As of May 31, 2015, we had approximately 10,500 employees, including those employed by our unconsolidated joint ventures. Approximately 6% of these employees are represented by collective bargaining units. Worthington believes it has good relationships with its employees, including those covered by collective bargaining units.

Joint Ventures

As part of our strategy to selectively develop new products, markets and technological capabilities and to expand our international presence, while mitigating the risks and costs associated with those activities, we participate in six consolidated and seven unconsolidated joint ventures.

Consolidated

The results of the following six consolidated joint ventures have been consolidated with the financial results of the Company since the respective dates on which the Company acquired majority ownership. The equity owned by the minority members is shown as noncontrolling interests on our consolidated balance sheets and their portions of net earnings are included as net earnings attributable to noncontrolling interests in our consolidated statements of earnings.

• dHybrid is a 79.59%-owned consolidated joint venture with M&M Residual, LLC that manufactures CNG fuel systems for large trucks out of a facility in Salt Lake City, Utah. dHybrid’s financial results are consolidated within Pressure Cylinders.

• Spartan is a 52%-owned consolidated joint venture with AK Steel Corporation (as successor to Severstal Dearborn LLC), located in Monroe, Michigan. It operates a cold-rolled, hot-dipped galvanizing line for toll processing steel coils into galvanized and galvannealed products intended primarily for the automotive industry. Spartan’s financial results are consolidated within Steel Processing.

• TWB is a 55%-owned consolidated joint venture with a subsidiary of Wuhan Iron and Steel Company (“WISCO”). It is a leading North American supplier of laser welded blanks, laser welded coils and other laser welded products for use primarily in the automotive industry for products such as inner-door panels, body sides, rails and pillars. TWB operates facilities in Monroe, Michigan; Prattville, Alabama; and Smyrna, Tennessee as well as in Puebla, Ramos Arizpe (Saltillo), Hermosillo and Silao, Mexico; and Cambridge, Ontario, Canada. TWB’s financial results have been consolidated within Steel Processing since July 31, 2013, when we increased our ownership interest from 45% to 55%. For periods prior to the acquisition date, our portion of the equity in the net income of TWB was included within equity in the net income of unconsolidated affiliates.

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• WEI is a 75%-owned consolidated joint venture with Tom E. Kiser (20%) and Stonehenge Structured Finance Partners, LLC (5%) (together referred to as “WEI Partners”), with offices in Fremont and Columbus, Ohio. WEI is an Energy Services Company that develops cost-effective energy solutions for entities in North America and Asia. Once these solutions are implemented, WEI monitors, verifies and guarantees these energy saving solutions. WEI’s financial results are reported within the Other category for segment reporting purposes.

• Worthington Nitin Cylinders is a 60%-owned consolidated joint venture based in Visakhapatnam, India with Nitin Fire Protection Industries Limited (“Nitin Fire”). Worthington Nitin Cylinders manufactures high-pressure, seamless steel cylinders for CNG and other industrial gas storage applications. Worthington Nitin Cylinders’ financial results are consolidated within Pressure Cylinders. During the fourth quarter of fiscal 2014, management committed to plans to sell its interest in Worthington Nitin Cylinders and actions to locate a buyer are ongoing. However, the joint venture is no longer manufacturing cylinders and the investment has been entirely written off.

• Worthington Aritas is a 75%-owned consolidated joint venture based in Turkey. Worthington Aritas is one of Europe’s leading cryogenic technology companies for LNG and other gas storage applications. Its financial results have been consolidated within Pressure Cylinders since January 24, 2014.

Unconsolidated

• ArtiFlex Manufacturing, LLC (“ArtiFlex”), a 50%-owned joint venture with International Tooling Solutions, LLC, provides an integrated solution for engineering, tooling, stamping, assembly and other services to customers primarily in the automotive industry. ArtiFlex operates six manufacturing facilities: three in Michigan, two in Ohio and one in Kentucky.

• ClarkDietrich, a 25%-owned joint venture with Clarkwestern Building Systems, Inc., is the industry leader in the manufacture and supply of light gauge steel framing products in the United States. ClarkDietrich manufactures a full line of drywall studs and accessories, structural studs and joists, metal lath and accessories, shaft wall studs and track, and vinyl products used primarily in residential and commercial construction. This joint venture operates 13 manufacturing facilities, one each in Connecticut, Georgia, Hawaii, Illinois, and Maryland and two each in California, Ohio, Florida and Texas.

• Samuel Steel Pickling Company (“Samuel”), a 31.25%-owned joint venture with Samuel Manu-Tech Pickling, Inc. operates one steel pickling facility in Twinsburg, Ohio, and another in Cleveland, Ohio. Samuel also performs in-line slitting, side trimming, pickle dry, under winding and the application of dry lube coatings during the pickling process.

• Serviacero Planos, S. de R.L. de C.V. (“Serviacero Worthington”), a 50%-owned joint venture with Inverzer, S.A. de C.V., operates three facilities in Mexico, one each in Leon, Queretaro and Monterrey. Serviacero Worthington provides steel processing services, such as pickling, slitting, multi-blanking and cutting-to-length, to customers in a variety of industries including automotive, appliance, electronics and heavy equipment.

• Worthington Armstrong Venture (“WAVE”), a 50%-owned joint venture with Armstrong Ventures, Inc., a subsidiary of Armstrong World Industries, Inc., is one of the three largest global manufacturers of ceiling suspension systems for concealed and lay-in panel ceilings used in commercial and residential ceiling markets. It competes with the two other global manufacturers and numerous smaller manufacturers. WAVE operates ten facilities in five countries: Santa Fe Springs, California; Alpharetta, Georgia; Aberdeen, Maryland; Benton Harbor, Michigan; North Las Vegas, Nevada; Qingpu, Shanghai, China; Sittingbourne and Team Valley, United Kingdom; Prouvy, France; and Marval, Pune, India.

• Worthington Specialty Processing (“WSP”), a 51%-owned joint venture with a subsidiary of U. S. Steel, operates three steel processing facilities located in Canton, Jackson and Taylor, Michigan,

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which are managed by Steel Processing. WSP serves primarily as a toll processor for U.S. Steel and others. Its services include slitting, blanking, cutting-to-length, laser welding, tension leveling and warehousing. WSP is considered to be jointly controlled and not consolidated due to substantive participating rights of the minority partner.

• Zhejiang Nisshin Worthington Precision Specialty Steel Co., Ltd, a 10%-owned unconsolidated joint venture with Nisshin Steel Co., Ltd. and Marubeni-Itochu Steel Inc., is based in Pinghu City, Zhejiang, China. The joint venture is constructing a facility that will produce cold-rolled strip steel, primarily for the automotive industry.

See “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note B – Investments in Unconsolidated Affiliates” of this Annual Report on Form 10-K for additional information about our unconsolidated joint ventures.

Environmental Regulation

Our manufacturing facilities, generally in common with those of similar industries making similar products, are subject to many federal, state, local and foreign laws and regulations relating to the protection of the environment. We examine ways to reduce emissions and waste and to decrease costs related to environmental compliance. The cost of compliance or capital expenditures for environmental control facilities required to meet environmental requirements are not anticipated to be material when compared with overall costs and capital expenditures and, accordingly, are not anticipated to have a material effect on our financial position, results of operations, cash flows, or the competitive position of Worthington or any particular business segment.

Item 1A. – Risk Factors

Future results and the market price for Worthington Industries’ common shares are subject to numerous risks, many of which are driven by factors that cannot be controlled or predicted. The following discussion, as well as other sections of this Annual Report on Form 10-K, including “PART II – Item 7.– Management’s Discussion and Analysis of Financial Condition and Results of Operations,” describe certain business risks. Consideration should be given to the risk factors described below as well as those in the Safe Harbor Statement at the beginning of this Annual Report on Form 10-K, in conjunction with reviewing the forward-looking statements and other information contained in this Annual Report on Form 10-K. These risks are not the only risks we face. Our business operations could also be affected by additional factors that are not presently known to us or that we currently consider to be immaterial in our operations.

Risks Related to Our Business

Economic or Industry Downturns and Weakness

Our industries are cyclical and weakness or downturns in the economy or certain industries could have an adverse effect on our business.    The overall general economic conditions, both domestically and globally, have improved from the lows reached during the recession, but they are not strong. The automotive market has rebounded, and the construction market is improving. However, global economic conditions, particularly in Europe, remain fragile, and the possibility remains that the domestic or global economies, or certain industry sectors of those economies that are key to our sales, could deteriorate, which could result in a corresponding decrease in demand for our products and negatively impact our results of operations and financial condition.

If the price of natural gas and/or oil prices remain low or decline further, the demand for products in our oil and gas equipment business could be adversely affected.    Volatility or weakness in oil prices or natural gas prices, or the perception of future price weakness, affects the spending patterns of our customers within the

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oil and gas equipment business. This has resulted and may continue to result in the drilling of fewer wells or lower production spending on existing wells, lowering demand for our oil and gas equipment products and negatively impacting our results of operations and financial condition.

The automotive and construction industries account for a significant portion of our net sales, and reduced demand from these industries could adversely affect our business.    An overall downturn in the economy, a disruption in capital and credit markets, high unemployment, reduced consumer confidence or other factors could cause reductions in demand from our end markets in general and, in particular, the automotive and construction end markets. If demand for the products we sell to the automotive, construction or other end markets which we supply were to be reduced, this could negatively affect our sales, financial results and cash flows.

Financial difficulties and bankruptcy filings by our customers could have an adverse impact on our business.    In past years, some customers have experienced and some continue to experience challenging financial conditions. The financial difficulties of certain customers and/or their failure to obtain credit or otherwise improve their overall financial condition could result in changes within the markets we serve, including plant closings, decreased production, reduced demand, changes in product mix, unfavorable changes in the prices, terms or conditions we are able to obtain and other changes that may result in decreased purchases from us and otherwise negatively impact our business. These conditions also increase the risk that these customers may delay or default on their payment obligations to us. Should the economy or any of our markets decline, the risk of bankruptcy filings by and financial difficulties of our customers may increase. While we have taken and will continue to take steps intended to mitigate the impact of financial difficulties and potential bankruptcy filings by our customers, these matters could have a negative impact on our business.

Volatility in the United States and worldwide capital and credit markets could impact our end markets and result in negative impacts on demand, increased credit and collection risks and other adverse effects on our business.    The domestic and worldwide capital and credit markets have experienced significant volatility, disruptions and dislocations with respect to price and credit availability. These factors caused diminished availability of credit and other capital in our end markets, and for participants in, and the customers of, those markets. Although domestic credit markets have largely stabilized from the height of the financial crisis, the effects of the financial crisis continue to present additional risks to us, our customers and suppliers. In particular, there is no guarantee that the credit markets or liquidity will not once again be restricted. Additionally, stricter lending standards may make it more difficult and costly for some firms to access the credit markets. In addition, uncertainties in Europe regarding the financial sector and sovereign debt and the potential impact on banks in other regions of the world will continue to weigh on global and domestic growth. Although we believe we have adequate access to several sources of contractually committed borrowings and other available credit facilities, these risks could temporarily restrict our ability to borrow money on acceptable terms in the credit markets and potentially could affect our ability to draw on our credit facilities. In addition, restricted access to the credit markets could make it difficult, or in some cases, impossible for customers to borrow money to fund their operations. Lack of, or limited access to, capital would adversely affect our customers’ ability to purchase our products or, in some cases, to pay for our products on a timely basis.

Raw Material Pricing and Availability

Our operating results may be adversely affected by declining steel prices.    If steel prices or other raw material prices decrease, competitive conditions may impact how quickly we must reduce our prices to our customers, and we could be forced to use higher-priced raw materials then on hand to complete orders for which the selling prices have decreased. Decreasing steel prices could also require us to write-down the value of our inventory to reflect current market pricing.

Our operating results may be affected by fluctuations in raw material prices, and we may be unable to pass on increases in raw material costs to our customers.    Our principal raw material is flat-rolled steel, which we

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purchase from multiple primary steel producers. The steel industry as a whole has been cyclical, and at times availability and pricing can be volatile due to a number of factors beyond our control. These factors include general economic conditions, domestic and worldwide demand, the influence of hedge funds and other investment funds participating in commodity markets, curtailed production from major suppliers due to factors such as the closing or idling of facilities, accidents or equipment breakdowns, repairs or catastrophic events, labor costs or problems, competition, new laws and regulations, import duties, tariffs, energy costs, availability and cost of steel inputs (e.g., ore, scrap, coke and energy), currency exchange rates and other factors described in the immediately preceding paragraph. This volatility, as well as any increases in raw material costs, could significantly affect our steel costs and adversely impact our financial results. If our suppliers increase the prices of our critical raw materials, we may not have alternative sources of supply. In addition, in an environment of increasing prices for steel and other raw materials, competitive conditions may impact how much of the price increases we can pass on to our customers. To the extent we are unable to pass on future price increases in our raw materials to our customers, our financial results could be adversely affected.

The costs of manufacturing our products and our ability to supply our customers could be negatively impacted if we experience interruptions in deliveries of needed raw materials or supplies.    If, for any reason, our supply of flat-rolled steel or other key raw materials, such as aluminum, zinc or helium, or other supplies is curtailed or we are otherwise unable to obtain the quantities we need at competitive prices, our business could suffer and our financial results could be adversely affected. Such interruptions could result from a number of factors, including a shortage of capacity in the supplier base of raw materials, energy or the inputs needed to make steel or other supplies, a failure of suppliers to fulfill their supply or delivery obligations, financial difficulties of suppliers resulting in the closing or idling of supplier facilities, other significant events affecting supplier facilities, significant weather events, those factors listed in the immediately following paragraph or other factors beyond our control. Further, the number of suppliers has decreased in recent years due to industry consolidation and the financial difficulties of certain suppliers, and this consolidation may continue.

Inventories

Our business could be harmed if we fail to maintain proper inventory levels.    We are required to maintain sufficient inventories to accommodate the needs of our customers including, in many cases, short lead times and just-in-time delivery requirements. Although we typically have customer orders in hand prior to placement of our raw material orders for Steel Processing, we anticipate and forecast customer demand for each of our operating segments. We purchase raw materials on a regular basis in an effort to maintain our inventory at levels that we believe are sufficient to satisfy the anticipated needs of our customers based upon orders, customer volume expectations, historic buying practices and market conditions. Inventory levels in excess of customer demand may result in the use of higher-priced inventory to fill orders reflecting lower selling prices, if raw material prices have significantly decreased. These events could adversely affect our financial results. Conversely, if we underestimate demand for our products or if our suppliers fail to supply quality products in a timely manner, we may experience inventory shortages. Inventory shortages could result in unfilled orders, negatively impacting our customer relationships and resulting in lost revenues, which could harm our business and adversely affect our financial results.

Suppliers and Customers

The loss of significant volume from our key customers could adversely affect us.    A significant loss of, or decrease in, business from any of our key customers could have an adverse effect on our sales and financial results if we cannot obtain replacement business. Also, due to consolidation in the industries we serve, including the construction, automotive, and retail industries, our sales may be increasingly sensitive to deterioration in the financial condition of, or other adverse developments with respect to, one or more of our top customers. In addition, certain of our top customers may be able to exert pricing and other influences on

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us, requiring us to market, deliver and promote our products in a manner that may be more costly to us. Moreover, we generally do not have long-term contracts with our customers. As a result, although our customers periodically provide indications of their product needs and purchases, they generally purchase our products on an order-by-order basis, and the relationship, as well as particular orders, can be terminated at any time.

Many of our key industries, such as automotive, construction and heavy mobile equipment, are cyclical in nature.    Many of our key industries, such as automotive, oil and gas, construction and heavy mobile equipment, are cyclical and can be impacted by both market demand and raw material supply, particularly with respect to steel. The demand for our products is directly related to, and quickly impacted by, customer demand in our industries, which can change as the result of changes in the general United States or worldwide economy and other factors beyond our control. Adverse changes in demand or pricing can have a negative effect on our business.

Significant reductions in sales to any of the Detroit Three automakers could have a negative impact on our business.    More than half of the net sales of our Steel Processing operating segment and a significant amount of the net sales of certain joint ventures are to automotive-related customers. Although we do sell to the domestic operations of foreign automakers and their suppliers, a significant portion of our automotive sales are to Ford, General Motors, and FCA US LLC (the “Detroit Three automakers”) and their suppliers. A reduction in sales for any of the Detroit Three automakers could negatively impact our business. Since 2011, automobile producers have begun taking steps toward complying with new Corporate Average Fuel Economy mileage requirements for new cars and light trucks that they produce. As automobile producers work to produce vehicles in compliance with these standards, they may reduce the amount of steel or begin utilizing alternative materials in cars and trucks to improve fuel economy, thereby reducing demand for steel and resulting in further over-supply of steel in North America. Certain automakers have announced that they will use greater amounts of aluminum and smaller proportions of steel in some new models.

A significant reduction in sales to any of our large heavy mobile equipment customers could have a negative impact on our business.    Substantially all of the sales of our Engineered Cabs operating segment are to customers who manufacture heavy mobile equipment. A reduction in sales to any of our major customers in this market could negatively impact our business. A reduction in demand could result from numerous causes including a reduction in overall market demand for heavy mobile equipment, in-sourcing of engineered cabs by our customers, or increased competition.

The closing or relocation of customer facilities could adversely affect us.    Our ability to meet delivery requirements and the overall cost of our products as delivered to customer facilities are important competitive factors. If customers close or move their production facilities further away from our manufacturing facilities which can supply them, it could have an adverse effect on our ability to meet competitive conditions, which could result in the loss of sales. Likewise, if customers move their production facilities overseas, it could result in the loss of potential sales for us.

Sales conflicts with our customers and/or suppliers may adversely impact us.    In some instances, we may compete with one or more of our customers and/or suppliers in pursuing the same business. In addition, in the Engineered Cabs business, our customers often have the option of producing certain cabs in-house instead of having them supplied by us or our competition. To the extent they elect to produce such cabs in-house, it could adversely affect our sales. Such conflicts may strain our relationships with those parties, which could adversely affect our future business with them.

The closing or idling of steel manufacturing facilities could have a negative impact on us.    As steel makers have reduced their production capacities by closing or idling production lines in light of the challenging economic conditions, the number of facilities from which we can purchase steel, in particular certain specialty steels, has decreased. Accordingly, if delivery from a supplier is disrupted, particularly with respect to certain

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types of specialty steel, it may be more difficult to obtain an alternate supply than in the past. These closures and disruptions could also have an adverse effect on our suppliers’ on-time delivery performance, which could have an adverse effect on our ability to meet our own delivery commitments and may have other adverse effects on our business.

The loss of key supplier relationships could adversely affect us.    Over the years, our various manufacturing operations have developed relationships with certain steel and other suppliers which have been beneficial to us by providing more assured delivery and a more favorable all-in cost, which includes price and shipping costs. If any of those relationships were disrupted, it could have an adverse effect on delivery times and the overall cost and quality of our raw materials, which could have a negative impact on our business. In addition, we do not have long-term contracts with any of our suppliers. If, in the future, we are unable to obtain sufficient amounts of steel and other products at competitive prices and on a timely basis from our traditional suppliers, we may be unable to obtain these products from alternative sources at competitive prices to meet our delivery schedules, which could have a material adverse impact on our results of operations.

Competition

Our business is highly competitive, and increased competition could negatively impact our financial results.    Generally, the markets in which we conduct business are highly competitive. Our competitors include a variety of both domestic and foreign companies in all major markets. Competition for most of our products is primarily on the basis of price, product quality and our ability to meet delivery requirements. Depending on a variety of factors, including raw material, energy, labor and capital costs, government control of currency exchange rates and government subsidies of foreign steel producers, our business may be materially adversely affected by competitive forces. Competition may also increase if suppliers to or customers of our industries begin to more directly compete with our businesses through new facilities, acquisitions or otherwise. As noted above, we can have conflicts with our customers or suppliers who, in some cases, supply the same products and services as we do. Increased competition could cause us to lose market share, increase expenditures, lower our margins or offer additional services at a higher cost to us, which could adversely impact our financial results.

Material Substitution

If steel prices increase compared to certain substitute materials, the demand for our products could be negatively impacted, which could have an adverse effect on our financial results.    In certain applications, steel competes with other materials, such as aluminum (particularly in the automobile industry), cement and wood (particularly in the construction industry), composites, glass and plastic. Prices of all of these materials fluctuate widely, and differences between the prices of these materials and the price of steel may adversely affect demand for our products and/or encourage material substitution, which could adversely affect prices and demand for steel products. The high cost of steel relative to other materials may make material substitution more attractive for certain uses.

If increased government mileage standards for automobiles result in the substitution of other materials for steel, demand for our products could be negatively impacted, which could have an adverse effect on our financial results.    Due to government requirements that manufacturers increase the fuel efficiency of automobiles, the automobile industry is exploring alternative materials to steel to decrease weight. The substitution of lighter weight material for steel in automobiles could adversely affect prices and demand for our steel products.

Freight and Energy

Increasing freight and energy costs could increase our operating costs, which could have an adverse effect on our financial results.    The availability and cost of freight and energy, such as electricity, natural gas and diesel fuel, is important in the manufacture and transport of our products. Our operations consume substantial

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amounts of energy, and our operating costs generally increase when energy costs rise. Factors that may affect our energy costs include significant increases in fuel, oil or natural gas prices, unavailability of electrical power or other energy sources due to droughts, hurricanes or other natural causes or due to shortages resulting from insufficient supplies to serve customers, or interruptions in energy supplies due to equipment failure or other causes. During periods of increasing energy and freight costs, we may be unable to fully recover our operating cost increases through price increases without reducing demand for our products. Our financial results could be adversely affected if we are unable to pass all of the increases on to our customers or if we are unable to obtain the necessary freight and energy. Also, increasing energy costs could put a strain on the transportation of our materials and products if the increased costs force certain transporters to close.

We depend on third parties for freight services, and increases in costs or the lack of availability of freight services can adversely affect our operations.    We rely primarily on third parties for transportation of our products as well as delivery of our raw materials, primarily by truck. If, due to lack of freight services, raw materials are not delivered to us in a timely manner, we may be unable to manufacture and deliver our products to meet customer demand. Likewise, if due to lack of freight service, we cannot deliver our products in a timely manner, it could harm our reputation, negatively affect our customer relationships and have a material adverse effect on our results of operations.

Information Systems

We are subject to information system security risks and systems integration issues that could disrupt our internal operations.    We are dependent upon information technology for the distribution of information internally and also to our customers and suppliers. This information technology is subject to damage or interruption from a variety of sources, including, without limitation, computer viruses, security breaches and defects in design. We could also be adversely affected by system or network disruptions if new or upgraded business management systems are defective, not installed properly or not properly integrated into operations. Various measures have been implemented to manage our risks related to information system and network disruptions and to prevent attempts to gain unauthorized access through the Internet to our information systems. However, a system failure could negatively impact our operations and financial results. In addition, cyber attacks could threaten the integrity of our trade secrets and sensitive intellectual property.

Business Disruptions

Disruptions to our business or the business of our customers or suppliers could adversely impact our operations and financial results.    Business disruptions, including increased costs for, or interruptions in, the supply of energy or raw materials, resulting from shortages of supply or transportation, severe weather events (such as hurricanes, tsunamis, earthquakes, tornados, floods and blizzards), casualty events (such as explosions, fires or material equipment breakdown), acts of terrorism, pandemic disease, labor disruptions, the idling of facilities due to reduced demand (resulting from a downturn in economic activity or otherwise) or other events (such as required maintenance shutdowns), could cause interruptions to our businesses as well as the operations of our customers and suppliers. While we maintain insurance coverage that can offset some losses relating to certain types of these events, losses from business disruptions could have an adverse effect on our operations and financial results and we could be adversely impacted to the extent any such losses are not covered by insurance or cause some other adverse impact to us.

Foreign Operations

Economic, political and other risks associated with foreign operations could adversely affect our international financial results.    Although the substantial majority of our business activity takes place in the United States, we derive a portion of our revenues and earnings from operations in foreign countries, and we are subject to risks associated with doing business internationally. We have wholly-owned facilities in Austria, Poland and Portugal and joint venture facilities in China, France, India, Mexico, Turkey and the United Kingdom, and are

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active in exploring other foreign opportunities. The risks of doing business in foreign countries include, among other factors: the potential for adverse changes in the local political climate, in diplomatic relations between foreign countries and the United States or in government policies, laws or regulations; terrorist activity that may cause social disruption; logistical and communications challenges; costs of complying with a variety of laws and regulations; difficulty in staffing and managing geographically diverse operations; deterioration of foreign economic conditions; inflation and fluctuations in interest rates; currency rate fluctuations; foreign exchange restrictions; differing local business practices and cultural considerations; restrictions on imports and exports or sources of supply, including energy and raw materials; changes in duties, quotas, tariffs, taxes or other protectionist measures; and potential issues related to matters covered by the Foreign Corrupt Practices Act or similar laws. We believe that our business activities outside of the United States involve a higher degree of risk than our domestic activities, and any one or more of these factors could adversely affect our operating results and financial condition. In addition, the global recession and the volatility of worldwide capital and credit markets have significantly impacted and may continue to significantly impact our foreign customers and markets. These factors have resulted in decreased demand in our foreign operations and have had significant negative impacts on our business. Refer to the Economic or Industry Downturns and Weakness risk factors herein for additional information concerning the impact of the global recession and the volatility of capital and credit markets on our business.

Joint Ventures

A change in the relationship between the members of any of our joint ventures may have an adverse effect on that joint venture.    We have been successful in the development and operation of various joint ventures, and our equity in net income from our joint ventures, particularly WAVE, has been important to our financial results. We believe an important element in the success of any joint venture is a solid relationship between the members of that joint venture. If there is a change in ownership, a change of control, a change in management or management philosophy, a change in business strategy or another event with respect to a member of a joint venture that adversely impacts the relationship between the joint venture members, it could adversely impact that joint venture. In addition, joint ventures necessarily involve special risks. Whether or not we hold a majority interest or maintain operational control in a joint venture, our partners may have economic or business interests or goals that are inconsistent with our interests or goals. For example, our partners may exercise veto rights to block actions that we believe to be in our best interests, may take action contrary to our policies or objects with respect to our investments, or may be unable or unwilling to fulfill their obligations or commitments to the joint venture.

Acquisitions

We may be unable to successfully consummate, manage or integrate our acquisitions.    A portion of our growth has occurred through acquisitions. We may from time to time continue to seek attractive opportunities to acquire businesses, enter into joint ventures and make other investments that are complementary to our existing strengths. There are no assurances, however, that any acquisition opportunities will arise or, if they do, that they will be consummated, or that any needed additional financing for such opportunities will be available on satisfactory terms when required. In addition, acquisitions involve risks that the businesses acquired will not perform in accordance with expectations, that business judgments concerning the value, strengths and weaknesses of businesses acquired will prove incorrect, that we may assume unknown liabilities from the seller, that the acquired businesses may not be integrated successfully and that the acquisitions may strain our management resources or divert management’s attention from other business concerns. International acquisitions may present unique challenges and increase our exposure to the risks associated with foreign operations and countries. Failure to successfully integrate any of our acquisitions may cause significant operating inefficiencies and could adversely affect our operations and financial condition.

Capital Expenditures

Our business requires capital investment and maintenance expenditures, and our capital resources may not be adequate to provide for all of our cash requirements.    Many of our operations are capital intensive. For the

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five-year period ended May 31, 2015, our total capital expenditures, including acquisitions and investment activity, were approximately $210.3 million. Additionally, as of May 31, 2015, we were obligated to make aggregate lease payments of $38.5 million under operating lease agreements. Our business also requires expenditures for maintenance of our facilities. We currently believe that we have adequate resources (including cash and cash equivalents, cash provided by operating activities, availability under existing credit facilities and unused lines of credit) to meet our cash needs for normal operating costs, capital expenditures, debt repayments, dividend payments, future acquisitions and working capital for our existing business. However, given the potential for challenges, uncertainty and volatility in the domestic and global economies and financial markets, there can be no assurance that our capital resources will be adequate to provide for all of our cash requirements.

Litigation

We may be subject to legal proceedings or investigations, the resolution of which could negatively affect our results of operations and liquidity in a particular period.    Our results of operations or liquidity in a particular period could be affected by an adverse ruling in any legal proceedings or investigations which may be pending against us or filed against us in the future. We are also subject to a variety of legal compliance risks, including, without limitation, potential claims relating to product liability, product recall, health and safety, environmental matters, intellectual property rights, taxes and compliance with U.S. and foreign export laws, anti-bribery laws, competition laws and sales and trading practices. While we believe that we have adopted appropriate risk management and compliance programs to address and reduce these risks, the global and diverse nature of our operations means that these risks will continue to exist and additional legal proceedings and contingencies may arise from time to time. A future adverse ruling or settlement or an unfavorable change in laws, rules or regulations could have a material adverse effect on our results of operations or liquidity in a particular period.

Accounting and Tax Estimates

We are required to make accounting and tax-related estimates, assumptions and judgments in preparing our consolidated financial statements, and actual results may differ materially from the estimates, assumptions and judgments that we use.    In preparing our consolidated financial statements in accordance with accounting principles generally accepted in the United States, we are required to make certain estimates and assumptions that affect the accounting for and recognition of assets, liabilities, revenues and expenses. These estimates and assumptions must be made because certain information that is used in the preparation of our consolidated financial statements is dependent on future events, or cannot be calculated with a high degree of precision from data available to us. In some cases, these estimates and assumptions are particularly difficult to determine and we must exercise significant judgment. Some of the estimates, assumptions and judgments having the greatest amount of uncertainty, subjectivity and complexity are related to our accounting for bad debts, returns and allowances, inventory, self-insurance reserves, derivatives, stock-based compensation, deferred tax assets and liabilities and asset impairments. Our actual results may differ materially from the estimates, assumptions and judgments that we use, which could have a material adverse effect on our financial condition and results of operations.

Tax Laws and Regulations

Tax increases or changes in tax laws could adversely affect our financial results.    We are subject to tax and related obligations in the jurisdictions in which we operate or do business, including state, local, federal and foreign taxes. The taxing rules of the various jurisdictions in which we operate or do business often are complex and subject to varying interpretations. Tax authorities may challenge tax positions that we take or historically have taken, and may assess taxes where we have not made tax filings or may audit the tax filings we have made and assess additional taxes. Some of these assessments may be substantial, and also may involve the imposition of penalties and interest. In addition, governments could impose new taxes on us or

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increase the rates at which we are taxed in the future. The payment of substantial additional taxes, penalties or interest resulting from tax assessments, or the imposition of any new taxes, could materially and adversely impact our results of operations, financial condition and cash flows. In addition, our provision for income taxes and cash tax liability in the future could be adversely affected by changes in U.S. tax laws. Potential changes that may adversely affect our financial results include, without limitation, decreasing the ability of U.S. companies to receive a tax credit for foreign taxes paid or to defer the U.S. deduction of expenses in connection with investments made in other countries.

Claims and Insurance

Adverse claims experience, to the extent not covered by insurance, may have an adverse effect on our financial results.    We self-insure a significant portion of our potential liability for workers’ compensation, product liability, product recall, general liability, property liability, automobile liability and employee medical claims. In order to reduce risk, we purchase insurance from highly-rated, licensed insurance carriers that cover most claims in excess of the applicable deductible or retained amounts. We maintain reserves for the estimated cost to resolve open claims as well as an estimate of the cost of claims that have been incurred but not reported. The occurrence of significant claims, our failure to adequately reserve for such claims, a significant cost increase to maintain our insurance or the failure of our insurance providers to perform could have an adverse impact on our financial condition and results of operations.

Principal Shareholder

Our principal shareholder may have the ability to exert significant influence in matters requiring a shareholder vote and could delay, deter or prevent a change in control of Worthington Industries.    Pursuant to our charter documents, certain matters such as those in which a person would attempt to acquire or take control of the Company, must be approved by the vote of the holders of common shares representing at least 75% of Worthington Industries’ outstanding voting power. Approximately 27% of our outstanding common shares are beneficially owned, directly or indirectly, by John P. McConnell, our Chairman of the Board and Chief Executive Officer. As a result of his beneficial ownership of our common shares, Mr. McConnell may have the ability to exert significant influence in these matters and other proposals upon which our shareholders may vote.

Key Employees

If we lose senior management or other key employees, our business may be adversely affected.    Our ability to successfully operate, grow our business and implement our business strategies is largely dependent on the efforts, abilities and services of our senior management and other key employees. The loss of any of these individuals or our inability to attract, train and retain additional personnel could reduce the competitiveness of our business or otherwise impair our operations or prospects. Our future success will also depend, in part, on our ability to attract and retain qualified personnel, such as engineers and other skilled technicians, who have experience in the application of our products and are knowledgeable about our business, markets and products. We cannot assure that we will be able to retain our existing senior management personnel or other key employees or attract additional qualified personnel when needed. We have not entered into any formal employment agreements or change in control agreements with our executive officers, and the loss of any member of our management team could adversely impact our business and operations. Additionally, we may modify our management structure from time to time or reduce our overall workforce, which may create marketing, operational and other business risks.

Credit Ratings

Ratings agencies may downgrade our credit ratings, which could make it more difficult for us to raise capital and could increase our financing costs.    Any downgrade in our credit ratings may make raising capital more

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difficult, may increase the cost and affect the terms of future borrowings, may affect the terms under which we purchase goods and services and may limit our ability to take advantage of potential business opportunities. In addition, the interest rate on our revolving credit facility is tied to our credit ratings, and any downgrade of our credit ratings would likely result in an increase in the current cost of borrowings under our revolving credit facility.

Difficult Financial Markets

Should we be required to raise capital in the future, we could face higher borrowing costs, less available capital, more stringent terms and tighter covenants or, in extreme conditions, an inability to raise capital.    Although we currently have significant borrowing availability under our existing credit facilities, should those facilities become unavailable due to covenant or other defaults, or should we otherwise be required to raise capital outside our existing facilities, given the current uncertainty and volatility in the U.S. and global credit and capital markets, our ability to access capital and the terms under which we do so may be negatively impacted. Any adverse change in our access to capital or the terms of our borrowings, including increased costs, could have a negative impact on our financial condition.

Environmental, Health and Safety

We may incur additional costs related to environmental and health and safety matters.    Our operations and facilities are subject to a variety of federal, state, local and foreign laws and regulations relating to the protection of the environment and human health and safety. Failure to maintain or achieve compliance with these laws and regulations or with the permits required for our operations could result in increased costs and capital expenditures and potentially fines and civil or criminal sanctions, third-party claims for property damage or personal injury, cleanup costs or temporary or permanent discontinuance of operations. Over time, we and predecessor operators of our facilities have generated, used, handled and disposed of hazardous and other regulated wastes. Environmental liabilities, including cleanup obligations, could exist at our facilities or at off-site locations where materials from our operations were disposed of or at facilities we have divested, which could result in future expenditures that cannot be currently quantified and which could reduce our profits and cash flow. We may be held strictly liable for any contamination of these sites, and the amount of any such liability could be material. Under the “joint and several” liability principle of certain environmental laws, we may be held liable for all remediation costs at a particular site, even with respect to contamination for which we are not responsible. Changes in environmental and human health and safety laws, rules, regulations or enforcement policies could have a material adverse effect on our business, financial condition or results of operations.

Legislation and Regulations

Certain proposed legislation and regulations may have an adverse impact on the economy in general and in our markets specifically, which may adversely affect our business.    Our business may be negatively impacted by a variety of new or proposed legislation or regulations. For example, legislation and regulations proposing increases in taxation on, or heightened regulation of, carbon or other greenhouse gas emissions may result in higher prices for steel, higher prices for utilities required to run our facilities, higher fuel costs for us and our suppliers and distributors and other adverse impacts. See the immediately following risk factor for additional information regarding legislation and regulations concerning climate change and greenhouse gas emissions. To the extent that new legislation or regulations increase our costs, we may not be able to fully pass these costs on to our customers without a resulting decline in sales and adverse impact to our profits. Likewise, to the extent new legislation or regulations would have an adverse effect on the economy, our markets or the ability of domestic businesses to compete against foreign operations, it could also have an adverse impact on us.

Legislation or regulations concerning climate change and greenhouse gas emissions may negatively affect our results of operations.    Energy is a significant input in a number of our operations and products, and many

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believe that consumption of energy derived from fossil fuels is a contributor to global warming. A number of governments and governmental bodies have introduced or are contemplating legislative and regulatory changes in response to the potential impacts of climate change and greenhouse gas emissions. The European Union has established greenhouse gas regulations, and Canada has published details of a regulatory framework for greenhouse gas emissions. The U.S. Environmental Protection Agency has issued and proposed regulations addressing greenhouse gas emissions, including regulations which will require reporting of greenhouse gas emissions from large sources and suppliers in the United States. Legislation previously has been introduced in the U.S. Congress aimed at limiting carbon emissions from companies that conduct business that is carbon-intensive. Among other potential items, such bills could include a system of carbon emission credits issued to certain companies, similar to the European Union’s existing cap-and-trade system. Several U.S. states have also adopted, and other states may in the future adopt, legislation or regulations implementing state-wide or regional cap-and-trade systems that apply to some or all industries that emit greenhouse gases. It is impossible at this time to forecast what the final regulations and legislation, if any, will look like and the resulting effects on our business and operations. Depending upon the terms of any such regulations or legislation, however, we could suffer a negative financial impact as a result of increased energy, environmental and other costs necessary to comply with limitations on greenhouse gas emissions, and we may see changes in the margins of our greenhouse gas-intensive and energy-intensive assets. In addition, depending upon whether similar limitations are imposed globally, the regulations and legislation could negatively impact our ability to compete with foreign companies situated in areas not subject to such limitations. Many of our customers in the United States, Canada and Europe may experience similar impacts, which could result in decreased demand for our products.

Legislation, regulations or other events which could adversely affect the ability or cost to recover natural gas or oil may negatively affect our business.    In recent years, increasing amounts of oil and natural gas have been produced through the hydraulic fracking process throughout the United States and North America. This has resulted in decreasing energy costs, particularly for natural gas and similar energy products. This reduction has helped lower energy costs for U.S. businesses. Also, some of our recent acquisitions supply products which are used by companies engaged in hydraulic fracking. If legislation, regulations or other events limit the ability to recover such fuels through hydraulic fracking or increase the cost thereof, it could have a negative impact on our business, the U.S. economy and U.S. businesses in general, which could result in decreased demand for our products or otherwise negatively impact our business.

The implementation of the provisions of the new health care law could adversely affect our business.    As the provisions of the Patient Protection and Affordable Care Act begin to be fully implemented and governments and employers take action related thereto, the impact on U.S. health care costs are unknown. Many project that there will be a significant increase in health care costs which could adversely impact the U.S. economy and U.S. businesses which could result in a decreased demand for our products. Further, the Company’s health care costs could increase which would negatively impact our profits.

Seasonality

Our operations have been subject to seasonal fluctuations that may impact our cash flows for a particular period.    Historically our sales are generally strongest in the fourth quarter of the fiscal year when all of our business segments are normally operating at seasonal peaks, and our sales are generally weaker in the third quarter of the fiscal year, primarily due to reduced activity in the building and construction industry as a result of the colder, more inclement weather, as well as customer plant shutdowns in the automotive industry due to holidays. Our quarterly results may also be affected by the timing of large customer orders. Consequently, our cash flow from operations may fluctuate significantly from quarter to quarter. If, as a result of any such fluctuation, our quarterly cash flows were significantly reduced, we may be unable to service our indebtedness or maintain compliance with certain covenants under our credit facilities. A default under any of the documents governing our indebtedness could prevent us from borrowing additional funds, limit our ability to pay interest or principal and allow our lenders to declare the amounts outstanding to be immediately due and payable and to exercise certain other remedies.

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Impairment Charges

Continued or enhanced weakness or instability in the economy, our markets or our results of operations could result in future asset impairments, which would reduce our reported earnings and net worth.    We review the carrying value of our long-lived assets, excluding purchased goodwill and intangible assets with indefinite lives, for impairment whenever events or changes in circumstances indicate that the carrying value of an asset or asset group may not be recoverable. Impairment testing involves a comparison of the sum of the undiscounted future cash flows of the asset or asset group to its respective carrying amount. If the sum of the undiscounted future cash flows exceeds the carrying amount, then no impairment exists. If the carrying amount exceeds the sum of the undiscounted future cash flows, then a second step is performed to determine the amount of impairment, if any, to be recognized. For long-lived assets other than goodwill, an impairment loss is recognized to the extent that the carrying amount of the asset or asset group exceeds fair value. Goodwill and intangible assets with indefinite lives are tested for impairment annually, during the fourth quarter, or more frequently if events or changes in circumstances indicate that impairment may be present. The goodwill impairment test consists of comparing the fair value of the each reporting unit, determined using discounted cash flows, to each reporting unit’s respective carrying value. If the estimated fair value of the reporting unit exceeds its carrying value, there is no impairment. If the carrying amount of the reporting unit exceeds its estimated fair value, a goodwill impairment is indicated. The amount of the impairment is determined by comparing the fair value of the net assets of the reporting unit, excluding goodwill, to its estimated fair value, with the difference representing the implied fair value of the goodwill. If the implied fair value of the goodwill is lower than its carrying value, the difference is recorded as an impairment charge in our consolidated statement of earnings. Economic conditions remain fragile, particularly in Europe and the possibility remains that the domestic or global economies, or certain industry sectors that are key to our sales, may deteriorate. If certain of our business segments are adversely affected by the challenging and volatile economic and financial conditions, we may be required to record additional impairments, which would negatively impact our results of operations.

Item 1B. – Unresolved Staff Comments

None.

Item 2. – Properties.

General

Our principal corporate offices are located in an office building in Columbus, Ohio, containing approximately 117,700 square feet, which also house the principal corporate offices of our Pressure Cylinders, Engineered Cabs and Construction Services operating segments. We purchased this office building on June 22, 2012, and are in the process of completing a renovation of the building. Our Steel Processing corporate offices are located in an office building next to the principal corporate offices that contain approximately 30,000 square feet of leased space. We also own three facilities used for administrative and medical purposes in Columbus, Ohio, containing an aggregate of approximately 166,000 square feet. As of May 31, 2015, we owned or leased a total of approximately 7,900,000 square feet of space for our operations, of which approximately 6,900,000 square feet (7,300,000 square feet with warehouses) was devoted to manufacturing, product distribution and sales offices. Major leases contain renewal options for periods of up to 10 years. For information concerning rental obligations, refer to “Item 7. – Management’s Discussion and Analysis of Financial Condition and Results of Operations – Contractual Cash Obligations and Other Commercial Commitments” as well as “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note R – Operating Leases” of this Annual Report on Form 10-K. We believe the distribution and office facilities provide adequate space for our operations and are well maintained and suitable.

Excluding our 13 active joint ventures, we operate 33 manufacturing facilities and 11 warehouses. These facilities are well maintained and in good operating condition, and are believed to be sufficient to meet current needs.

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Steel Processing

Our wholly-owned operations within Steel Processing operate a total of twelve manufacturing facilities, nine of which are owned by the Company and contain approximately 2,500,000 square feet, and three of which are leased and contain approximately 300,000 square feet. These facilities are located in Alabama, California, New York, Indiana (2), Ohio (6), and Pennsylvania. This operating segment also owns one warehouse in Ohio, containing approximately 110,000 square feet, and one warehouse in California, containing approximately 60,000 square feet. As noted above, this operating segment’s corporate offices are located in Columbus, Ohio.

Pressure Cylinders

Our wholly-owned operations within Pressure Cylinders operate a total of 17 manufacturing facilities, 15 of which are owned by the Company and contain a total of approximately 2,000,000 square feet, and two that are leased and contain approximately 200,000 square feet. These facilities are located in California, Kansas (2), Massachusetts, Oklahoma, North Carolina, North Dakota, Ohio (5), Wisconsin, Austria, Poland (2) and Portugal. Pressure Cylinders also operates two warehouses, one in Austria and one in Poland, that are owned by the Company that contain a total of approximately 60,000 square feet, and two leased warehouses, both in Ohio, that contain a total of approximately 150,000 square feet. As noted above, this operating segment’s corporate offices are located in Columbus, Ohio.

Engineered Cabs

Engineered Cabs operates three manufacturing facilities owned by the Company that contain a total of approximately 800,000 square feet. These facilities are located in South Carolina, South Dakota, and Tennessee. This operating segment also has two leased warehouses, one in each of South Carolina and Tennessee, which contain a total of approximately 80,000 square feet. Engineered Cabs’ corporate offices are located in Columbus, Ohio.

Other

The Construction Services operating segment consists of the Military Construction business unit, which we are in the process of exiting. Construction Services operated one leased administrative facility in Tennessee, which contains a total of approximately 4,000 square feet. The Company also owns a manufacturing facility in Wooster, Ohio, that is subject to a lease agreement with our automotive body panels joint venture, ArtiFlex, and contains approximately 900,000 square feet.

Joint Ventures

As outlined below, our consolidated and unconsolidated joint ventures operate a total of 50 manufacturing facilities.

Consolidated

• Spartan owns and operates one manufacturing facility in Monroe, Michigan; TWB operates eight manufacturing facilities, one owned facility located in Monroe, Michigan, and seven leased facilities located in Alabama, Tennessee, Canada, and Mexico (4); WEI leases one manufacturing facility in Fremont, Ohio; dHybrid operates one leased manufacturing facility located in Salt Lake City, Utah; Worthington Nitin Cylinders owns and operates a manufacturing facility in India; and Worthington Aritas operates one leased manufacturing facility near Istanbul, Turkey.

Unconsolidated

• ArtiFlex operates six manufacturing facilities located in Michigan (3), Ohio (2) and Kentucky.

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• ClarkDietrich operates 13 manufacturing facilities, one each in Connecticut, Georgia, Hawaii, Illinois, and Maryland and two each in California, Ohio, Florida and Texas.

• Samuel operates two steel pickling facilities in Ohio.

• Serviacero Worthington operates three facilities in Mexico.

• WAVE operates ten facilities in five countries, five of which are located in the United States (one each in California; Georgia; Maryland; Michigan; and Nevada). The remaining facilities are located in China, the United Kingdom (2), France, and India.

• WSP operates three steel processing facilities located in Michigan and managed by our Steel Processing operating segment.

Item 3. – Legal Proceedings

The Company is involved in various judicial and administrative proceedings as both plaintiff and defendant, arising in the ordinary course of business. The Company does not believe that any such proceedings will have a material adverse effect on its business, financial position, results of operation or cash flows.

Item 4. – Mine Safety Disclosures

Not Applicable

Supplemental Item – Executive Officers of the Registrant

The following table lists the names, positions held and ages of the individuals serving as executive officers of the Registrant as of July 30, 2015.

Name	Age		Position(s) with the Registrant	Present Office Held Since
John P. McConnell		61	Chairman of the Board and Chief Executive Officer; a Director		1996
Mark A. Russell		52	President and Chief Operating Officer		2012
B. Andrew Rose		45	Executive Vice President and Chief Financial Officer		2008
Andrew J. Billman		47	President-Worthington Cylinder Corporation		2011
Dale T. Brinkman		62	Vice President-Administration, General Counsel and Secretary		2000
Terrance M. Dyer		48	Vice President-Human Resources		2012
Geoffrey G. Gilmore		43	President-The Worthington Steel Company		2012
Joseph B. Hayek		43	Vice President-Mergers and Acquisitions and Corporate Development		2014
John G. Lamprinakos		57	President-Worthington Industries Engineered Cabs		2013
Catherine M. Lyttle		56	Vice President-Communications and Investor Relations		2009
Richard G. Welch		57	Corporate Controller		2000
Virgil L. Winland		67	Senior Vice President-Manufacturing		2001

John P. McConnell has served as Worthington Industries’ Chief Executive Officer since June 1993, as a director of Worthington Industries continuously since 1990, and as Chairman of the Board of Worthington Industries since September 1996. Mr. McConnell serves as the Chair of the Executive Committee of Worthington Industries’ Board of Directors. He served in various positions with the Company from 1975 to June 1993.

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Mark A. Russell has served as President and Chief Operating Officer of Worthington Industries since August 1, 2012. From February 2007 to July 31, 2012, Mr. Russell served as President of The Worthington Steel Company.

B. Andrew ‘Andy’ Rose has served as Executive Vice President of Worthington Industries since July 2014 and as Chief Financial Officer since December 2008. From December 2008 to July 2014, Mr. Rose also served as Vice President of Worthington Industries. From 2007 to 2008, he served as a senior investment professional with MCG Capital Corporation, a publicly-traded company specializing in debt and equity investments in middle market companies; and from 2002 to 2007, he was a founding partner at Peachtree Equity Partners, L.P., a private equity firm backed by Goldman Sachs.

Andrew J. Billman has served as President of Worthington Cylinder Corporation since August 2011. From February 2010 to August 2011, he served as Vice President-Purchasing for Worthington Industries. He served as Regional Sales Manager of The Worthington Steel Company from August 2008 to January 2010, as National Account Manager of The Worthington Steel Company from August 2006 to July 2008, and as Automotive Accounts Manager of The Worthington Steel Company from August 1998 to December 2000. Mr. Billman served in various other positions with the Company from 1991 to January 2001. From January 2001 to July 2006, he was employed with A.M.S.E.A., Inc., a private manufacturing company that stamped components, located in Michigan.

Dale T. Brinkman has served as Worthington Industries’ Vice President-Administration since December 1998 and as Worthington Industries’ General Counsel since September 1982. He has been Secretary of Worthington Industries since September 2000 and served as Assistant Secretary from September 1982 to September 2000.

Terrance M. Dyer has served as Vice President-Human Resources of Worthington Industries since June 2012. From October 2009 to June 2012, he served as the Vice President-Human Resources for our WAVE joint venture in Malvern, Pennsylvania. Prior to serving as Vice President-Human Resources for WAVE, Mr. Dyer spent five years in various human resources roles of increasing responsibility at Armstrong World Industries.

Geoffrey G. Gilmore has served as President of The Worthington Steel Company since August 2012. From July 2011 to July 2012, he served as Vice President-Purchasing for Worthington Industries and was responsible for all purchasing efforts across the Company including steel, commodity and OEM purchasing, logistics and outside processing. From April 2010 to July 2011, he served as General Manager of The Worthington Steel Company’s Delta, Ohio facility, responsible for overseeing its manufacturing and sales operations; and from June 2006 to February 2010, he served as Director of Automotive Sales for The Worthington Steel Company. Mr. Gilmore served in various other positions with the Company from 1998 to June 2006.

Joseph B. Hayek has served as Vice President-Mergers and Acquisitions and Corporate Development of Worthington Industries since April 2014. From June 2012 to April 2014, Mr. Hayek served as President of Sarcom, Inc., a value-added IT solutions provider which changed its name to PCM Sales, Inc. in January 2013. From March 2008 to June 2012, he served as Executive Vice President of corporate development of PCM Inc., a provider of IT products, services and solutions. Prior to March 2008, Mr. Hayek served for eight years in the investment banking industry with Raymond James.

John G. Lamprinakos has served as President of Worthington Industries Engineered Cabs since June 2013. From December 2004 to July 2013, Mr. Lamprinakos served as President and Chief Executive Officer of our WAVE joint venture in Malvern, Pennsylvania. Before joining WAVE, Mr. Lamprinakos spent 24 years at Worthington Cylinder Corporation, including as President from 2001 to 2003.

Catherine M. Lyttle has served as Vice President-Communications and Investor Relations of Worthington Industries since April 2009. She served as Vice President of Communications of Worthington Industries from January 1999 to April 2009. Ms. Lyttle served as Vice President of Marketing for the Columbus Chamber of Commerce from 1987 to September 1997 and as Vice President of JMAC Hockey from 1997 to 1999.

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Richard G. Welch has served as the Corporate Controller of Worthington Industries since March 2000 and prior thereto, he served as Assistant Controller of Worthington Industries from August 1999 to March 2000. He served as Principal Financial Officer of Worthington Industries on an interim basis from September 2008 to December 2008.

Virgil L. Winland has served as Senior Vice President-Manufacturing of Worthington Industries since January 2001. He served in various other positions with the Company from 1971 to January 2001, including as President of Worthington Cylinder Corporation from June 1998 through January 2001.

Executive officers serve at the pleasure of the directors of the Registrant. There are no family relationships among any of the Registrant’s executive officers or directors. No arrangements or understandings exist pursuant to which any individual has been, or is to be, selected as an executive officer of the Registrant.

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PART II

Item 5. – Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Common Shares Information

The common shares of Worthington Industries, Inc. (“Worthington Industries”) trade on the New York Stock Exchange (“NYSE”) under the symbol “WOR” and are listed in most newspapers as “WorthgtnInd.” As of July 24, 2015, Worthington Industries had 5,772 registered shareholders. The following table sets forth (i) the low and high closing prices and the closing price per share for Worthington Industries’ common shares for each quarter of fiscal 2015 and fiscal 2014, and (ii) the cash dividends per share declared on Worthington Industries’ common shares for each quarter of fiscal 2015 and fiscal 2014.

	Market Price						Cash Dividends    Declared
	Low		High		Closing
Fiscal 2015 Quarter Ended
August 31, 2014	$	38.25	$	43.85	$	40.44	$	0.18
November 30, 2014	$	34.06	$	40.99	$	37.71	$	0.18
February 28, 2015	$	24.18	$	38.36	$	27.00	$	0.18
May 31, 2015	$	25.21	$	28.77	$	27.21	$	0.18
Fiscal 2014 Quarter Ended
August 31, 2013	$	31.35	$	36.50	$	33.33	$	0.15
November 30, 2013	$	33.16	$	41.93	$	41.93	$	0.15
February 28, 2014	$	37.39	$	44.05	$	39.86	$	0.15
May 31, 2014	$	35.70	$	41.86	$	40.30	$	0.15

Dividends are declared at the discretion of Worthington Industries’ Board of Directors (the “Board”). The Board declared quarterly dividends of $0.18 per common share in fiscal 2015 and of $0.15 per common share in fiscal 2014. On June 24, 2015, the Board declared a quarterly dividend of $0.19 per common share for the first quarter of fiscal 2016, an increase of $0.01 per common share over the previous quarterly rate. This dividend is payable on September 29, 2015, to shareholders of record as of September 15, 2015.

The Board reviews the dividend on a quarterly basis and establishes the dividend rate based upon Worthington Industries’ financial condition, results of operations, capital requirements, current and projected cash flows, business prospects and other factors which the directors may deem relevant. While Worthington Industries has paid a dividend every quarter since becoming a public company in 1968, there is no guarantee this will continue in the future.

Shareholder Return Performance

The following information in this Item 5 of this Annual Report on Form 10-K is not deemed to be “soliciting material” or to be “filed” with the Securities and Exchange Commission or subject to Regulation 14A or Regulation 14C under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or to the liabilities of Section 18 of the Exchange Act, and will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent we specifically incorporate such information into such a filing.

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The following graph compares the five-year cumulative return on Worthington Industries’ common shares, the S&P Midcap 400 Index and the S&P 1500 Steel Composite Index. The graph assumes that $100 was invested at May 31, 2010, in Worthington Industries’ common shares and each index.

* $100 invested on 5/31/10 in common shares or index. Assumes reinvestment of dividends when received. Fiscal year ended May 31.

	05/10		05/11		05/12		05/13		05/14		05/15
Worthington Industries, Inc.	$	100.00	$	151.99	$	116.30	$	251.98	$	298.87	$	205.87
S&P Midcap 400 Index	$	100.00	$	132.96	$	124.85	$	162.24	$	191.52	$	215.04
S&P 1500 Steel Composite Index	$	100.00	$	118.34	$	78.32	$	83.85	$	100.20	$	90.12

Data and graph provided by Zacks Investment Research, Inc. Copyright^© 2015, Standard & Poor’s, a division of The McGraw-Hill Companies, Inc. All rights reserved. Used with permission.

Worthington Industries is a component of the S&P Midcap 400 Index. The S&P 1500 Steel Composite Index, of which Worthington Industries is also a component, is the most specific index relative to the largest line of business of Worthington Industries and its subsidiaries. At May 31, 2015, the S&P 1500 Steel Composite Index included 9 steel related companies from the S&P 500, S&P Midcap 400 and S&P 600 indices: Allegheny Technologies Incorporated; A.M. Castle & Co.; Cliffs Natural Resources Inc.; Commercial Metals Company; Olympic Steel, Inc.; Reliance Steel & Aluminum Co.; Steel Dynamics, Inc.; United States Steel Corporation; and Worthington Industries, Inc.

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Issuer Purchases of Equity Securities

The following table provides information about purchases made by, or on behalf of, Worthington Industries or any “affiliated purchaser” (as defined in Rule 10b – 18(a) (3) under the Exchange Act) of common shares of Worthington Industries during each month of the fiscal quarter ended May 31, 2015:

Period	Total Number of Common Shares Purchased		Average Price Paid per Common Share		Total Number of Common Shares Purchased as Part of Publicly Announced Plans or Programs		Maximum Number of Common Shares that May Yet Be Purchased Under the Plans or Programs (1)
March 1-31, 2015		945,195	$	26.42		945,195		7,696,337
April 1-30, 2015		150,192	$	27.30		150,192		7,546,145
May 1-31, 2015 (2)		99,999	$	27.34		-		7,546,145
Total		1,195,386	$	26.61		1,095,387

(1) The number shown represents, as of the end of each period, the maximum number of common shares that could be purchased under the publicly announced repurchase authorization then in effect. On June 25, 2014, Worthington Industries, Inc. announced that the Board authorized the repurchase of up to 10,000,000 of Worthington Industries’ outstanding common shares. A total of 7,546,145 common shares were available under this repurchase authorization at May 31, 2015.

The common shares available for repurchase under this authorization may be purchased from time to time, with consideration given to the market price of the common shares, the nature of other investment opportunities, cash flows from operations, general economic conditions and other appropriate factors. Repurchases may be made on the open market or through privately negotiated transactions.

(2) Consists of common shares surrendered in May 2015 to satisfy tax withholding obligations upon exercise of stock options and vesting of restricted common shares. These common shares were not counted against the 10,000,000 share repurchase authorization in effect throughout fiscal 2015 and discussed in footnote (1) above.

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Item 6. – Selected Financial Data

	Fiscal Year Ended May 31,
(in thousands, except per share amounts)	2015			2014			2013			2012			2011
FINANCIAL RESULTS
Net sales	$	3,384,234		$	3,126,426		$	2,612,244		$	2,534,701		$	2,442,624
Cost of goods sold		2,920,701			2,633,907			2,215,601			2,201,833			2,086,467
Gross margin		463,533			492,519			396,643			332,868			356,157
Selling, general and administrative expense		295,920			300,396			258,324			225,069			235,198
Impairment of goodwill and long-lived assets		100,129			58,246			6,488			355			4,386
Restructuring and other expense (income)		6,514			(2,912	)		3,293			5,984			2,653
Joint venture transactions		413			1,036			(604	)		(150	)		(10,436	)
Operating income		60,557			135,753			129,142			101,610			124,356
Miscellaneous income		795			16,963			1,452			2,319			597
Interest expense		(35,800	)		(26,671	)		(23,918	)		(19,497	)		(18,756	)
Equity in net income of unconsolidated affiliates		87,476			91,456			94,624			92,825			76,333
Earnings before income taxes		113,028			217,501			201,300			177,257			182,530
Income tax expense		25,772			57,349			64,465			51,904			58,496
Net earnings		87,256			160,152			136,835			125,353			124,034
Net earnings attributable to noncontrolling interests		10,471			8,852			393			9,758			8,968
Net earnings attributable to controlling interest	$	76,785		$	151,300		$	136,442		$	115,595		$	115,066
Earnings per share – diluted:
Net earnings per share attributable to controlling interest	$	1.12		$	2.11		$	1.91		$	1.65		$	1.53
Depreciation and amortization	$	85,089		$	79,730		$	66,469		$	55,873		$	61,058
Capital expenditures (including acquisitions and investments)		210,346			82,855			219,813			272,349			59,891
Cash dividends declared		48,308			41,816			36,471			33,441			29,411
Per common share	$	0.72		$	0.60		$	0.52		$	0.48		$	0.40
Average common shares oustanding – diluted		68,483			71,664			71,314			70,252			75,409
FINANCIAL POSITION
Total current assets	$	992,193		$	1,198,922		$	866,883		$	914,239		$	891,635
Total current liabilities		524,392			589,663			448,914			658,263			525,002
Working capital	$	467,801		$	609,259		$	417,969		$	255,976		$	366,633
Total property, plant and equipment, net	$	513,190		$	498,861		$	459,430		$	443,077		$	405,334
Total assets		2,085,142			2,296,381			1,950,857			1,877,797			1,667,249
Total debt		670,743			666,325			521,056			533,714			383,210
Total shareholders’ equity – controlling interest		749,112			850,812			830,822			697,174			689,910
Per share	$	11.68		$	12.62		$	11.91		$	10.27		$	9.62
Common shares outstanding		64,141			67,408			69,752			67,906			71,684

The Company’s aluminum high-pressure cylinder business has been excluded since its disposal in May 2015. The Advanced Component Technologies, Inc. business has been excluded since its disposal in January 2015. The acquisition of the assets of Rome Strip Steel Company, Inc. has been reflected since January 2015. The operations of dHybrid Systems, LLC have been reflected since October 2014 when we acquired our 79.59% ownership interest. The acquisition of the assets of Midstream Equipment Fabrication LLC has been reflected

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since August 2014. The acquisition of the assets of James Russell Engineering Works, Inc. has been reflected since July 2014. The operations of the tank manufacturing division of Steffes Corporation have been reflected since their acquisition in March 2014. The operations of Worthington Aritas Basincli Kaplar Sanayi have been reflected since January 2014 when we acquired our 75% ownership interest. Our small and medium steel high pressure industrial gas and acetylene cylinders business in North America has been excluded from consolidated operating results since its disposition in November 2013. TWB Company, L.L.C. has been reflected since July 2013 when we acquired an additional 10% ownership interest bringing our total to 55%. The acquisition of the assets of Palmer Mfg. & Tank, Inc. has been reflected since April 2013. Our European air brake tank operations in Czech Republic have been excluded since their disposal in October 2012. Westerman, Inc. has been reflected since its acquisition in September 2012. Worthington Energy Innovations, formerly PSI Energy Solutions, LLC, has been reflected since March 2012 when we acquired our 75% ownership interest. Worthington Industries Engineered Cabs, formerly Angus Industries, Inc., has been reflected since its acquisition in December 2011. The propane fuel cylinders business of The Coleman Company, Inc. has been reflected since its acquisition in December 2011. STAKO sp. Z o.o. has been reflected since its acquisition in September 2011. The BernzOmatic business of Irwin Industrial Tool Company has been reflected since its acquisition in July 2011. Our Automotive Body Panels operations have been excluded from consolidated operating results since their deconsolidation in May 2011. Our Metal Framing operations have been excluded from consolidated operating results since their deconsolidation in March 2011.

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Item 7. – Management’s Discussion and Analysis of Financial Condition and Results of Operations

Selected statements contained in this “Item 7. – Management’s Discussion and Analysis of Financial Condition and Results of Operations” constitute “forward-looking statements” as that term is used in the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are based, in whole or in part, on management’s beliefs, estimates, assumptions and currently available information. For a more detailed discussion of what constitutes a forward-looking statement and of some of the factors that could cause actual results to differ materially from such forward-looking statements, please refer to the “Safe Harbor Statement” in the beginning of this Annual Report on Form 10-K and “Part I – Item 1A. – Risk Factors” of this Annual Report on Form 10-K.

Introduction

Worthington Industries, Inc. is a corporation formed under the laws of the State of Ohio (individually, the “Registrant” or “Worthington Industries” or, collectively with the subsidiaries of Worthington Industries, Inc., “we,” “our,” “Worthington” or the “Company”). Founded in 1955, Worthington is primarily a diversified metals manufacturing company, focused on value-added steel processing and manufactured metal products. Our manufactured metal products include: pressure cylinders for liquefied petroleum gas (“LPG”), compressed natural gas (“CNG”), oxygen, refrigerant and other industrial gas storage; hand torches and filled hand torch cylinders; propane-filled camping cylinders; helium-filled balloon kits; steel and fiberglass tanks and processing equipment primarily for the oil and gas industry; and cryogenic pressure vessels for liquefied natural gas (“LNG”) and other gas storage applications; engineered cabs and operator stations and cab components; steel pallets and racks; and, through joint ventures, suspension grid systems for concealed and lay-in panel ceilings; laser welded blanks; light gauge steel framing for commercial and residential construction; and current and past model automotive service stampings. Our number one goal is to increase shareholder value, which we seek to accomplish by optimizing existing operations, developing and commercializing new products and applications, and pursuing strategic acquisitions and joint ventures.

As of May 31, 2015, excluding our joint ventures, we operated 33 manufacturing facilities worldwide, principally in three operating segments, which correspond with our reportable business segments: Steel Processing, Pressure Cylinders and Engineered Cabs. Our remaining operating segments, which do not meet the applicable aggregation criteria or quantitative thresholds for separate disclosure, are combined and reported in the “Other” category. These include Construction Services and Worthington Energy Innovations (“WEI”). The Company is in the process of exiting the businesses within Construction Services.

We also held equity positions in 13 active joint ventures, which operated 50 manufacturing facilities worldwide, as of May 31, 2015. Six of these joint ventures are consolidated with the equity owned by the other joint venture member(s) shown as noncontrolling interests in our consolidated balance sheets, and the other joint venture member(s)’ portion of net earnings and other comprehensive income shown as net earnings or comprehensive income attributable to noncontrolling interests in our consolidated statements of earnings and consolidated statements of comprehensive income, respectively. The remaining seven of these joint ventures are accounted for using the equity method.

Overview

Performance was mixed during fiscal 2015. The Company delivered overall sales growth of 8%; however, declining steel and oil prices and higher than expected manufacturing costs as a result of operational issues at certain locations in Engineered Cabs and Pressure Cylinders had a significant adverse impact on results. The falling price of steel resulted in significant inventory holding losses in Steel Processing. The downturn in oil and gas equipment markets depressed demand and combined with declines in industrial products to adversely impact Pressure Cylinders’ results. Continued operational issues at the Engineered Cabs facility in Florence, South Carolina, led to the decision to close the facility and triggered non-cash impairment charges totaling $83.9 million within Engineered Cabs, including $44.9 million for the full write off of goodwill.

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Equity in net income of unconsolidated affiliates (“equity income”) was down 4% in fiscal 2015 to $87.5 million. The decline was primarily due to a $4.0 million decrease at Serviacero, which was negatively impacted by the falling price of steel, and a $4.1 million decrease at ClarkDietrich on lower volumes. Equity income from WAVE and ArtiFlex was higher than the prior year by $3.5 million and $3.4 million, respectively. We received cash distributions of $78.3 million from our unconsolidated affiliates during fiscal 2015.

Recent Business Developments

• On July 31, 2014, the Company acquired the assets of James Russell Engineering Works, Inc. (“JRE”) for cash consideration of $1.6 million. The JRE business manufactures aluminum and stainless steel cryogenic transport trailers used for hauling liquid oxygen, nitrogen, argon, hydrogen and LNG for producers and distributors of industrial gases and LNG. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

• On August 1, 2014, the Company acquired the assets of Midstream Equipment Fabrication LLC (“MEF”) for cash consideration of $38.4 million and the assumption of certain liabilities. The MEF business manufactures patented horizontal heated and high pressure separators used to separate oilfield fluids and gas. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

• On October 20, 2014, we acquired a 79.59% ownership interest in dHybrid Systems, LLC (“dHybrid”), a manufacturer of CNG fuel systems for large trucks. The remaining 20.41% was retained by a founding member. The total purchase price was $15.9 million, which includes contingent consideration with an estimated fair value of $4.0 million. The acquired business became part of our Pressure Cylinders operating segment upon closing.

• On November 13, 2014, the Company’s consolidated laser welded blank joint venture, TWB, opened a new facility in Cambridge, Ontario. The facility operates one laser welding line with the capacity to produce two million tailor welded blanks per year.

• On January 16, 2015, the Company acquired the assets of Rome Strip Steel Company, Inc. (“Rome Strip Steel”) for cash consideration of $54.5 million after an adjustment for estimated working capital. Located in Rome, New York, Rome Strip Steel manufactures cold rolled steel to extremely tight tolerances. The acquired assets became part of our Steel Processing operating segment upon closing.

• On January 30, 2015, the Company sold the Advanced Component Technologies, Inc. (“ACT”) business within Engineered Cabs located in Northwood, Iowa.

• On March 6, 2015, WAVE, Worthington’s joint venture with Armstrong World Industries, acquired the Axiom^® and Serpentina^® ceiling system manufacturing capabilities from Fry Reglet Corporation.

• On March 24, 2015, the Company announced its decision to close its Engineered Cabs facility in Florence, South Carolina, and a workforce reduction in several oil and gas equipment locations due to slowing demand. These decisions led to non-cash impairment charges of $81.6 million for goodwill and other long-lived assets in Engineered Cabs and a restructuring charge of $2.2 million for the estimated severance expense covering those affected by the workforce reductions within Pressure Cylinders.

• On April 23, 2015, the Company amended its five-year, revolving credit facility, increasing commitments under the facility by $75.0 million, to a total of $500.0 million, and extending the maturity by three years to April 2020.

• On May 1, 2015, the Company completed the sale of its aluminum high-pressure cylinder business in New Albany, Mississippi, for cash proceeds of $8.4 million. A loss of $3.3 million was recognized as a result of the transaction, including $1.9 million of allocated goodwill and a $664,000 accrual for expected severance costs.

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• On June 24, 2015, the Board declared a quarterly dividend of $0.19 per share, an increase of $0.01 per share from the previous quarterly rate. The dividend is payable on September 29, 2015 to shareholders of record on September 15, 2015.

• On June 26, 2015, the Company announced the closure of its stainless steel business, Precision Specialty Metals, Inc. (“PSM”). The Company is in the process of winding down operations and expects to complete the exit of the facility by December 2015. The Company estimates that the closure will result in restructuring charges in the range of $1.0 million to $1.5 million, primarily due to severance costs.

• During fiscal 2015, we repurchased a total of 4,176,187 common shares for $127.4 million at an average price of $30.50.

Market & Industry Overview

We sell our products and services to a diverse customer base and a broad range of end markets. The breakdown of our net sales by end market for fiscal 2015 and fiscal 2014 is illustrated in the following chart:

The automotive industry is one of the largest consumers of flat-rolled steel, and thus the largest end market for our Steel Processing operating segment. Approximately 60% of the net sales of our Steel Processing operating segment are to the automotive market. North American vehicle production, primarily by Chrysler, Ford and General Motors (the “Detroit Three automakers”), has a considerable impact on the activity within this operating segment. The majority of the net sales of four of our unconsolidated joint ventures are also to the automotive end market.

Approximately 10% of the net sales of our Steel Processing operating segment, 60% of the net sales of our Engineered Cabs operating segment and substantially all of the net sales of our Construction Services operating segment are to the construction market. The construction market is also the predominant end market for two of our unconsolidated joint ventures: WAVE and ClarkDietrich. While the market price of steel significantly impacts these businesses, there are other key indicators that are meaningful in analyzing construction market demand, including U.S. gross domestic product (“GDP”), the Dodge Index of construction contracts and, in the case of ClarkDietrich, trends in the relative price of framing lumber and steel.

Substantially all of the net sales of our Pressure Cylinders operating segment, and approximately 30% and 40% of the net sales of our Steel Processing and Engineered Cabs operating segments, respectively, are to other markets such as consumer products, industrial, lawn and garden, agriculture, oil and gas equipment, heavy truck, mining, forestry and appliance. Given the many different products that make up these net sales and the wide variety of end markets, it is very difficult to detail the key market indicators that drive this portion of our business. However, we believe that the trend in U.S. GDP growth is a good economic indicator for analyzing these operating segments.

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We use the following information to monitor our costs and demand in our major end markets:

	2015			2014			2013			2015 vs. 2014			2014 vs. 2013
U.S. GDP (% growth year-over-year)1		2.5	%		1.7	%		2.2	%		0.8	%		-0.5	%
Hot-Rolled Steel ($ per ton)2	$	591		$	651		$	616		($	60	)	$	35
Detroit Three Auto Build (000’s vehicles)3		9,078			9,020			8,557			58			463
No. America Auto Build (000’s vehicles)3		17,124			16,381			15,744			743			637
Zinc ($ per pound)4	$	0.98		$	0.86		$	0.90		$	0.12		($	0.04	)
Natural Gas ($ per mcf)5	$	3.66		$	4.08		$	3.49		($	0.42	)	$	0.59
On-Highway Diesel Fuel Prices ($ per gallon)6	$	3.38		$	3.92		$	3.96		($	0.54	)	($	0.04	)

¹ 2014/2013 figures based on revised actuals    ² CRU Hot-Rolled Index; period average    ³ IHS Global    ⁴ LME Zinc; period average    ⁵ NYMEX Henry Hub Natural Gas; period average    ⁶ Energy Information Administration; period average

U.S. GDP growth rate trends are generally indicative of the strength in demand and, in many cases, pricing for our products. A year-over-year increase in U.S. GDP growth rates is indicative of a stronger economy, which generally increases demand and pricing for our products. Conversely, decreasing U.S. GDP growth rates generally indicate a weaker economy. Changes in U.S. GDP growth rates can also signal changes in conversion costs related to production and in selling, general and administrative (“SG&A”) expense.

The market price of hot-rolled steel is one of the most significant factors impacting our selling prices and operating results. When steel prices fall, which was the case during fiscal 2015, we typically have higher-priced material flowing through cost of goods sold, while selling prices compress to what the market will bear, negatively impacting our results. On the other hand, in a rising price environment, our results are generally favorably impacted, as lower-priced material purchased in previous periods flows through cost of goods sold, while our selling prices increase at a faster pace to cover current replacement costs.

The following table presents the average quarterly market price per ton of hot-rolled steel during fiscal 2015, fiscal 2014, and fiscal 2013:

(Dollars per ton 1)	Fiscal Year
	2015		2014		2013
1st Quarter	$	670	$	627	$	616
2nd Quarter	$	651	$	651	$	622
3rd Quarter	$	578	$	669	$	629
4th Quarter	$	464	$	655	$	595
Annual Avg.	$	591	$	651	$	616

¹ CRU Hot-Rolled Index

No single customer contributed more than 10% of our consolidated net sales during fiscal 2015. While our automotive business is largely driven by the production schedules of the Detroit Three automakers, our customer base is much broader and includes other domestic manufacturers and many of their suppliers. During fiscal 2015, vehicle production for the Detroit Three automakers was up 1% and North American vehicle production as a whole increased 5%.

Certain other commodities, such as zinc, natural gas and diesel fuel, represent a significant portion of our cost of goods sold, both directly through our plant operations and indirectly through transportation and freight expense.

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Results of Operations

Fiscal 2015 Compared to Fiscal 2014

Consolidated Operations

The following table presents consolidated operating results for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2015			% of Net sales			2014			% of Net sales			Increase/ (Decrease)
Net sales	$	3,384.2			100.0	%	$	3,126.4			100.0	%	$	257.8
Cost of goods sold		2,920.7			86.3	%		2,633.9			84.2	%		286.8
Gross margin		463.5			13.7	%		492.5			15.8	%		(29.0	)
Selling, general and administrative expense		295.9			8.7	%		300.4			9.6	%		(4.5	)
Impairment of goodwill and long-lived assets		100.1			3.0	%		58.2			1.9	%		41.9
Restructuring and other expense (income)		6.5			0.2	%		(2.9	)		-0.1	%		9.4
Joint venture transactions		0.4			0.0	%		1.0			0.0	%		(0.6	)
Operating income		60.6			1.8	%		135.8			4.3	%		(75.2	)
Miscellaneous income		0.8			0.0	%		16.9			0.5	%		(16.1	)
Interest expense		(35.8	)		-1.1	%		(26.7	)		-0.9	%		9.1
Equity in net income of unconsolidated affiliates		87.5			2.6	%		91.5			2.9	%		(4.0	)
Income tax expense		(25.8	)		-0.8	%		(57.3	)		-1.8	%		(31.5	)
Net earnings		87.3			2.6	%		160.2			5.1	%		(72.9	)
Net earnings attributable to noncontrolling interests		(10.5	)		-0.3	%		(8.9	)		-0.3	%		1.6
Net earnings attributable to controlling interest	$	76.8			2.3	%	$	151.3			4.8	%	$	(74.5	)

Fiscal 2015 net earnings attributable to controlling interest decreased $74.5 million from fiscal 2014. Net sales and operating highlights were as follows:

• Net sales increased $257.8 million over fiscal 2014. The increase was driven by the impact of acquisitions ($185.6 million) and higher volumes from existing customers ($123.7 million), partially offset by lower average selling prices ($51.5 million).

• Gross margin decreased $29.0 million from fiscal 2014. The decrease was driven by declines in the oil and gas equipment and industrial products end markets in Pressure Cylinders, inventory holding losses in Steel Processing and higher manufacturing expenses, partially offset by contributions from recent acquisitions.

• SG&A expense decreased $4.5 million from fiscal 2014 driven by lower profit sharing and bonus expense partially offset by the impact of acquisitions. In addition, the prior year period included a net pre-tax gain of $4.0 million for the favorable settlement of a legal dispute.

• Impairment charges of $100.1 million consisted primarily of $83.9 million related to Engineered Cabs, including $44.9 million for the full write off of goodwill. Impairment charges in the comparable prior year period consisted primarily of $30.7 million related to the write off of certain trade name intangible assets as a result of a re-branding initiative and $19.0 million related to the Company’s 60%-owned consolidated joint venture in India. For additional information regarding these impairment charges, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note C – Goodwill and Other Long-Lived Assets” of this Annual Report on Form 10-K.

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• Restructuring expense of $6.5 million consisted primarily of employee severance related to workforce reductions in our oil and gas equipment businesses ($2.2 million) and a net loss on the sale of the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi ($3.3 million). For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note D – Restructuring and Other Expense (Income)” of this Annual Report on Form 10-K.

• Interest expense of $35.8 million was $9.1 million higher than the prior fiscal year. The increase was due to the impact of higher average debt levels and higher average interest rates resulting from an increase in the usage of long-term debt versus short-term debt. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note G – Debt and Receivables Securitization” of this Annual Report on Form 10-K.

• Equity income decreased $4.0 million from fiscal 2014 to $87.5 million. The decline was due to lower equity income at Serviacero as a result of lower steel prices ($4.0 million) and lower equity income at ClarkDietrich on lower volumes ($4.1 million), partially offset by increases at WAVE ($3.5 million) and ArtiFlex ($3.4 million). We received $78.3 million in cash distributions from our unconsolidated affiliates during fiscal 2015. All joint ventures posted positive results, led by WAVE and ArtiFlex, which contributed $70.6 million and $7.2 million of equity income, respectively. For additional financial information regarding our unconsolidated affiliates, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note B – Investments in Unconsolidated Affiliates” of this Annual Report on Form 10-K.

• Income tax expense decreased $31.5 million from fiscal 2014 on lower earnings and an approximately $5.3 million benefit related to foreign tax credits, offset partially by favorable tax adjustments recorded in the prior year including $7.1 million associated with the acquisition of an additional 10% interest in TWB, $2.3 million associated with the write off of an investment in a foreign subsidiary, and $2.2 million of research and development credits.

Fiscal 2015 income tax expense reflects an effective tax rate attributable to controlling interest of 25.1% vs. 27.5% in fiscal 2014. The 25.1% rate is lower than the federal statutory rate of 35% primarily as a result of benefits from the qualified production activities deduction and the benefit related to foreign tax credits, offset partially by state and local income taxes. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note L – Income Taxes” of this Annual Report on Form 10-K.

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Segment Operations

Steel Processing

The following table presents a summary of operating results for our Steel Processing operating segment for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2015		% of Net sales			2014			% of Net sales			Increase/ (Decrease)
Net sales	$	2,145.7		100.0	%	$	1,936.1			100.0	%	$	209.6
Cost of goods sold		1,910.5		89.0	%		1,683.7			87.0	%		226.8
Gross margin		235.2		11.0	%		252.4			13.0	%		(17.2	)
Selling, general and administrative expense		123.4		5.8	%		129.7			6.7	%		(6.3	)
Impairment of long-lived assets		3.1		0.1	%		7.1			0.4	%		(4.0	)
Restructuring and other income		-		0.0	%		(3.4	)		-0.2	%		3.4
Operating income	$	108.7		5.1	%	$	119.0			6.1	%	$	(10.3	)
Material cost	$	1,567.3				$	1,392.0					$	175.3
Tons shipped (in thousands)		3,510					3,282						228

Net sales and operating highlights were as follows:

• Net sales increased $209.6 million over fiscal 2014. The increase was driven by the impact of acquisitions ($109.9 million), higher volumes from existing customers ($60.5 million) and higher average selling prices due to product mix ($39.2 million). Excluding the impact of TWB, the mix of direct versus toll tons processed was unchanged from fiscal 2014 at 56% to 44%.

• Operating income decreased $10.3 million from fiscal 2014. Gross margin declined $17.2 million as a result of lower spreads between average selling prices and material cost due to the declining price of steel. SG&A expense declined $6.3 million as a result of lower profit sharing and bonus expense and a decrease in depreciation expense partially offset by the impact of acquisitions. Operating income in the current year included an impairment charge of $3.1 million compared to $7.1 million in the prior year. Impairment charges in both fiscal 2015 and fiscal 2014 related to the Company’s stainless steel business, PSM. Operating income in fiscal 2014 was also favorably impacted by a net restructuring gain of $3.4 million, which consisted of a $4.8 million gain on the sale of the Company’s Integrated Terminals warehouse facility in Detroit, Michigan, offset by $1.4 million of severance costs accrued in connection with the closure of the Company’s Baltimore steel facility.

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Pressure Cylinders

The following table presents a summary of operating results for our Pressure Cylinders operating segment for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2015		% of Net sales			2014			% of Net sales			Increase/ (Decrease)
Net sales	$	1,001.4		100.0	%	$	928.4			100.0	%	$	73.0
Cost of goods sold		783.8		78.3	%		716.1			77.1	%		67.7
Gross margin		217.6		21.7	%		212.3			22.9	%		5.3
Selling, general and administrative expense		141.1		14.1	%		126.0			13.6	%		15.1
Impairment of long-lived assets		11.9		1.2	%		32.0			3.4	%		(20.1	)
Restructuring and other expense (income)		6.4		0.6	%		(0.7	)		-0.1	%		7.1
Operating income	$	58.2		5.8	%	$	55.0			5.9	%	$	3.2
Material cost	$	474.3				$	426.9					$	47.4
Net sales by principal class of products:
Industrial Products	$	438.0				$	455.4					$	(17.4	)
Oil and Gas Equipment		231.1					153.5						77.6
Consumer Products		219.4					219.4						-
Alternative Fuels		94.2					93.0						1.2
Cryogenics		18.7					7.1						11.6
Total Pressure Cylinders	$	1,001.4				$	928.4					$	73.0
Units shipped by principal class of products:
Industrial Products		31,705,116					33,623,049						(1,917,933	)
Oil and Gas Equipment		10,246					8,201						2,045
Consumer Products		48,964,578					48,785,465						179,113
Alternative Fuels		431,954					442,685						(10,731	)
Cryogenics		716					88						628
Total Pressure Cylinders		81,112,610					82,859,488						(1,746,878	)

Net sales and operating highlights were as follows:

• Net sales increased $73.0 million over fiscal 2014. The increase was driven by recent acquisitions ($81.3 million) and an increase in oil and gas equipment sales, partially offset by lower industrial products volume and the impact of foreign exchange on European sales.

• Operating income increased $3.2 million from fiscal 2014. Gross margin increased $5.3 million on contributions from recent acquisitions partially offset by high manufacturing costs in certain oil and gas equipment locations and lower volume in industrial products. SG&A expense increased $15.1 million due to the impact of acquisitions and the favorable prior year impact of a $4.0 million net pre-tax litigation gain. Fiscal 2015 impairment charges of $11.9 million consisted of $6.4 million related to the Company’s 60%-owned consolidated joint venture in India, $3.2 million related to the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, and $2.3 million for the partial impairment of intangible assets related to our dHybrid joint venture. Impairment charges in the prior year consisted primarily of $19.0 million related to the Company’s 60%-owned consolidated joint venture in India and $11.6 million related to the write off of certain trade name intangible assets as a result of a re-branding initiative. Restructuring expense of $6.4 million

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consisted primarily of employee severance related to workforce reductions in our oil and gas equipment businesses ($2.2 million) and a net loss on the sale of the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi ($3.3 million).

Engineered Cabs

The following table presents a summary of operating results for our Engineered Cabs operating segment for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2015			% of Net sales			2014			% of Net sales			Increase/ (Decrease)
Net sales	$	193.0			100.0	%	$	200.5			100.0	%	$	(7.5	)
Cost of goods sold		180.5			93.5	%		177.3			88.4	%		3.2
Gross margin		12.5			6.5	%		23.2			11.6	%		(10.7	)
Selling, general and administrative expense		26.1			13.5	%		30.6			15.3	%		(4.5	)
Impairment of goodwill and long-lived assets		83.9			43.5	%		19.1			9.5	%		64.8
Restructuring income		(0.3	)		-0.2	%		-			0.0	%		(0.3	)
Operating loss	$	(97.2	)		-50.3	%	$	(26.5	)		-13.2	%	$	(70.7	)
Material cost	$	89.3					$	90.9					$	(1.6	)

Net sales and operating highlights were as follows:

• Net sales decreased $7.5 million from fiscal 2014. The decrease was driven by lower tooling revenue from startup programs and the January 2015 sale of the assets of Advanced Component Technologies, Inc.

• Operating loss increased $70.7 million over fiscal 2014 on higher impairment charges, which were up $64.8 million. Excluding the impact of impairment charges, operating loss increased $6.0 million largely due to lower average selling prices and higher operating costs at the facility in Florence, South Carolina. Fiscal 2015 impairment charges consisted of $44.9 million for the full write off of goodwill and $39.0 million for other long-lived assets. Impairment charges in the prior year consisted of $19.1 million related to the write off of certain trade name intangible assets in connection with a re-branding initiative. For additional information regarding these impairment charges, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note C – Goodwill and Other Long-Lived Assets” of this Annual Report on Form 10-K.

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Other

The Other category includes the Construction Services and WEI operating segments, which do not meet the quantitative thresholds for separate disclosure. Certain income and expense items not allocated to our operating segments are also included in the Other category. The following table presents a summary of operating results for the Other category for the periods indicated:

	Fiscal Year Ended May 31,												Increase/ (Decrease)
(Dollars in millions)	2015			% of Net sales			2014			% of Net sales
Net sales	$	44.1			100.0	%	$	61.4			100.0	%	$	(17.3	)
Cost of goods sold		45.9			104.1	%		56.9			92.7	%		(11.0	)
Gross margin		(1.8	)		-4.1	%		4.5			7.3	%		(6.3	)
Selling, general and administrative expense		5.3			12.0	%		14.1			23.0	%		(8.8	)
Impairment of long-lived assets		1.2			2.7	%		-			0.0	%		1.2
Restructuring and other expense		0.3			0.7	%		1.2			2.0	%		(0.9	)
Joint venture transactions		0.4			0.9	%		1.0			1.6	%		(0.6	)
Operating loss	$	(9.0	)		-20.4	%	$	(11.8	)		-19.2	%	$	2.8

Net sales and operating highlights were as follows:

• Net sales decreased $17.3 million from fiscal 2014. The decrease was driven by declines in both the Construction Services and WEI businesses.

• Operating loss decreased $2.8 million from fiscal 2014. The improvement resulted from lower losses within Construction Services partially offset by impairment charges of $1.2 million related to the military construction business.

Fiscal 2014 Compared to Fiscal 2013

Consolidated Operations

The following table presents consolidated operating results for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2014			% of Net sales			2013			% of Net sales			Increase/ (Decrease)
Net sales	$	3,126.4			100.0	%	$	2,612.2			100.0	%	$	514.2
Cost of goods sold		2,633.9			84.2	%		2,215.6			84.8	%		418.3
Gross margin		492.5			15.8	%		396.6			15.2	%		95.9
Selling, general and administrative expense		300.4			9.6	%		258.3			9.9	%		42.1
Impairment of long-lived assets		58.2			1.9	%		6.5			0.2	%		51.7
Restructuring and other expense (income)		(2.9	)		-0.1	%		3.3			0.1	%		(6.2	)
Joint venture transactions		1.0			0.0	%		(0.6	)		0.0	%		1.6
Operating income		135.8			4.3	%		129.1			4.9	%		6.7
Miscellaneous income		16.9			0.5	%		1.5			0.1	%		15.4
Interest expense		(26.7	)		-0.9	%		(23.9	)		-0.9	%		2.8
Equity in net income of unconsolidated affiliates		91.5			2.9	%		94.6			3.6	%		(3.1	)
Income tax expense		(57.3	)		-1.8	%		(64.5	)		-2.5	%		(7.2	)
Net earnings		160.2			5.1	%		136.8			5.2	%		23.4
Net earnings attributable to noncontrolling interests		(8.9	)		-0.3	%		(0.4	)		0.0	%		8.5
Net earnings attributable to controlling interest	$	151.3			4.8	%	$	136.4			5.2	%	$	14.9

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Fiscal 2014 net earnings attributable to controlling interest increased $14.9 million over fiscal 2013. Net sales and operating highlights were as follows:

• Net sales increased $514.2 million from fiscal 2013. Higher overall volumes, aided by the impact of acquisitions, favorably impacted net sales by $532.7 million. The impact of higher overall volumes was partially offset by lower average selling prices, which negatively impacted net sales by $18.5 million.

• Gross margin increased $95.9 million from fiscal 2013 due to the aforementioned increase in volumes and a higher spread between average selling prices and material costs due in part to the favorable impact of inventory holding gains in Steel Processing in fiscal 2014, compared to inventory holding losses in fiscal 2013.

• SG&A expense increased $42.1 million from fiscal 2013, due primarily to the impact of acquisitions and higher profit sharing and bonus expense. The overall increase in SG&A expense was partially offset by a net pre-tax gain of $4.0 million for the favorable settlement of a legal dispute with a supplier involved in the fiscal 2012 voluntary product recall in Pressure Cylinders. For additional information regarding this and other significant legal matters, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note E – Contingent Liabilities and Commitments.”

• Impairment charges of $58.2 million consisted of $30.7 million related to the write off of certain trade name intangible assets as a result of a re-branding initiative, $19.0 million for the impairment of Worthington Nitin Cylinders, our 60%-owned consolidated joint venture in India, $7.1 million related to the Company’s stainless steel business, Precision Specialty Metals, and $1.4 million related to the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi. Approximately $7.6 million, or 40%, of the total impairment charge related to Worthington Nitin Cylinders was attributed to the noncontrolling interest. For additional information regarding these impairment charges, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note C – Goodwill and Other Long-Lived Assets” of this Annual Report on Form 10-K.

• Restructuring income of $2.9 million was driven by $7.1 million of net gains on the sale of assets, including $4.8 million related to the sale of our Integrated Terminals warehouse facility in Detroit, Michigan, and $2.3 million related to the sale of our North American steel high pressure and acetylene cylinders business. The impact of these items was partially offset by $2.5 million of accrued severance costs and $1.7 million of facility exit costs related to various restructuring and exit activities. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note D – Restructuring and Other Expense (Income)” of this Annual Report on Form 10-K.

• In connection with the wind down of our former Metal Framing operating segment, we recognized net charges of $1.0 million within the joint venture transactions financial statement caption, consisting primarily of facility exit costs. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note D – Restructuring and Other Expense (Income)” of this Annual Report on Form 10-K.

• Interest expense of $26.7 million was $2.8 million higher than the prior fiscal year. The increase was due to the impact of higher average debt levels and higher average interest rates resulting from an increase in the usage of long-term debt versus short-term debt. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note G – Debt and Receivables Securitization” of this Annual Report on Form 10-K.

• Equity income decreased $3.1 million from fiscal 2013 to $91.5 million. Adjusting for the removal of TWB from equity income, due to its consolidation, and the impact of a $4.8 million charge for the write off of our metal framing joint venture in China in fiscal 2013, equity income was up $2.8 million led by higher contributions from WSP, WAVE, and Serviacero, which increased $2.5 million, $1.6

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million and $1.4 million, respectively. Equity income at ClarkDietrich decreased $1.8 million on lower volumes related to severe weather conditions. However, all joint ventures posted positive results, led by WAVE, Serviacero and ClarkDietrich, which contributed $67.1 million, $7.3 million, and $7.0 million of equity income, respectively. For additional financial information regarding our unconsolidated affiliates, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note B – Investments in Unconsolidated Affiliates” of this Annual Report on Form 10-K.

• Income tax expense decreased $7.2 million from fiscal 2013. The impact of higher earnings was more than offset by (a) a one-time $7.1 million favorable tax adjustment associated with the acquisition of an additional 10% interest in TWB (the “TWB acquisition adjustment”), (b) a $2.3 million tax write off of an investment in a foreign subsidiary, and (c) $2.2 million of research and development credits. The TWB acquisition adjustment related primarily to the estimated U.S. deferred tax liability associated with the unremitted earnings of TWB’s wholly-owned foreign corporations.

Fiscal 2014 income tax expense reflects an effective tax rate attributable to controlling interest of 27.5% vs. 32.1% in fiscal 2013. The 27.5% rate is lower than the federal statutory rate of 35% primarily as a result of (a) the TWB acquisition adjustment, and (b) benefits from (i) the qualified production activities deduction, (ii) a one-time tax write off of an investment in a foreign subsidiary, and (iii) research and development credits, offset partially by state and local income taxes and the unfavorable impact of foreign taxes due primarily to certain foreign impairment charges for which there was no associated tax benefit. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note L – Income Taxes” of this Annual Report on Form 10-K.

Segment Operations

Steel Processing

The following table presents a summary of operating results for our Steel Processing operating segment for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2014			% of Net sales			2013		% of Net sales			Increase/ (Decrease)
Net sales	$	1,936.1			100.0	%	$	1,462.6		100.0	%	$	473.5
Cost of goods sold		1,683.7			87.0	%		1,284.3		87.8	%		399.4
Gross margin		252.4			13.0	%		178.3		12.2	%		74.1
Selling, general and administrative expense		129.7			6.7	%		110.1		7.5	%		19.6
Impairment of long-lived assets		7.1			0.4	%		-		0.0	%		7.1
Restructuring and other income		(3.4	)		-0.2	%		-		0.0	%		(3.4	)
Operating income	$	119.0			6.1	%	$	68.2		4.7	%	$	50.8
Material cost	$	1,392.0					$	1,044.8				$	347.2
Tons shipped (in thousands)		3,282						2,659					623

Net sales and operating highlights were as follows:

• Net sales increased $473.5 million over fiscal 2013 to $1.9 billion. The impact of higher overall volumes, resulting from the consolidation of TWB and increased sales to the automotive, construction and agriculture markets, favorably impacted net sales by $485.7 million. Excluding the impact of TWB, overall volumes were up 12%, and the mix of direct versus toll tons processed was unchanged from fiscal 2013 at 56% to 44%.

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• Operating income increased $50.8 million over fiscal 2013 primarily due to higher overall volumes and the positive impact of inventory holding gains in fiscal 2014 compared to inventory holding losses in fiscal 2013. Operating income in fiscal 2014 was also favorably impacted by a net restructuring gain of $3.4 million, which consisted of a $4.8 million gain on the sale of the Company’s Integrated Terminals warehouse facility in Detroit, Michigan, offset by $1.4 million of severance costs accrued in connection with the closure of the Company’s Baltimore steel facility. The overall improvement in operating income was partially offset by impairment charges of $7.1 million related to PSM.

Pressure Cylinders

The following table presents a summary of operating results for our Pressure Cylinders operating segment for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2014			% of Net sales			2013		% of Net sales			Increase/ (Decrease)
Net sales	$	928.4			100.0	%	$	859.3		100.0	%	$	69.1
Cost of goods sold		716.1			77.1	%		676.8		78.8	%		39.3
Gross margin		212.3			22.9	%		182.5		21.2	%		29.8
Selling, general and administrative expense		126.0			13.6	%		106.9		12.4	%		19.1
Impairment of long-lived assets		32.0			3.4	%		6.5		0.8	%		25.5
Restructuring and other expense (income)		(0.7	)		-0.1	%		2.7		0.3	%		(3.4	)
Operating income	$	55.0			5.9	%	$	66.4		7.7	%	$	(11.4	)
Material cost	$	426.9					$	409.1				$	17.8
Net sales by principal class of products:
Industrial Products	$	455.4					$	482.6				$	(27.2	)
Consumer Products		219.4						206.4					13.0
Oil and Gas Equipment		153.5						67.3					86.2
Alternative Fuels		93.0						103.0					(10.0	)
Cryogenics		7.1						-					7.1
Total Pressure Cylinders	$	928.4					$	859.3				$	69.1
Units shipped by principal class of products:
Industrial Products		33,623,049						35,332,844					(1,709,795	)
Consumer Products		48,785,465						46,258,872					2,526,593
Oil and Gas Equipment		8,201						24,476					(16,275	)
Alternative Fuels		442,685						572,782					(130,097	)
Cryogenics		88						-					88
Total Pressure Cylinders		82,859,488						82,188,974					670,514

Net sales and operating highlights were as follows:

• Net sales increased $69.1 million over fiscal 2013 to $928.4 million. Higher overall volumes favorably impacted net sales by $62.0 million, as the favorable impact of recent acquisitions more than offset overall softness in our European cylinder operations.

• Operating income decreased $11.4 million from fiscal 2013, as the improvement in gross margin was more than offset by higher impairment charges and an increase in SG&A expense. Fiscal 2014 impairment charges of $32.0 million consisted of $19.0 million for the impairment of Worthington

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Nitin Cylinders, $11.6 million related to the write off of certain trade name intangible assets, and $1.4 million related to the impairment of the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi. The overall increase in SG&A expense was due to the impact of acquisitions and an increase in corporate allocated expenses, partially offset by a net pre-tax gain of $4.0 million for the favorable settlement of a legal dispute with a supplier involved in the fiscal 2012 voluntary product recall in Pressure Cylinders. Restructuring income of $0.7 million was driven by a $2.0 million net gain on the sale of the Company’s North American small and medium steel high pressure industrial gas and acetylene cylinders business partially offset by severance and other exit costs associated with the consolidation of our hand torch manufacturing operation in Medina, New York into the existing Pressure Cylinders facility in Chilton, Wisconsin.

Engineered Cabs

The following table presents a summary of operating results for our Engineered Cabs operating segment for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2014			% of Net sales			2013		% of Net sales			Increase/ (Decrease)
Net sales	$	200.5			100.0	%	$	226.0		100.0	%	$	(25.5	)
Cost of goods sold		177.3			88.4	%		194.4		86.0	%		(17.1	)
Gross margin		23.2			11.6	%		31.6		14.0	%		(8.4	)
Selling, general and administrative expense		30.6			15.3	%		27.4		12.1	%		3.2
Impairment of long-lived assets		19.1			9.5	%		-		0.0	%		19.1
Operating income (loss)	$	(26.5	)		-13.2	%	$	4.2		1.9	%	$	(30.7	)
Material cost	$	90.9					$	112.8				$	(21.9	)

Net sales and operating highlights were as follows:

• Net sales decreased $25.5 million from fiscal 2013 due to the combined impact of lower volumes and lower average selling prices due to an unfavorable change in product mix.

• Operating loss of $26.5 million represents a $30.7 million decrease from the $4.2 million of operating income generated in fiscal 2013. The decrease was driven by an impairment charge of $19.1 million related to the write off of certain trade name intangible assets and the combined impact of lower net sales and higher manufacturing and SG&A expense, due in part to continued investment in people, technology and process improvements.

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Other

The Other category includes the Construction Services and WEI operating segments, which do not meet the quantitative thresholds for separate disclosure. Certain income and expense items not allocated to our operating segments are also included in the Other category. The following table presents a summary of operating results for the Other category for the periods indicated:

	Fiscal Year Ended May 31,
(Dollars in millions)	2014			% of Net sales			2013			% of Net sales			Increase/ (Decrease)
Net sales	$	61.4			100.0	%	$	64.3			100.0	%	$	(2.9	)
Cost of goods sold		56.9			92.7	%		60.0			93.3	%		(3.1	)
Gross margin		4.5			7.3	%		4.3			6.7	%		0.2
Selling, general and administrative expense		14.1			23.0	%		13.8			21.5	%		0.3
Restructuring and other expense		1.2			2.0	%		0.6			0.9	%		0.6
Joint venture transactions		1.0			1.6	%		(0.6	)		-0.9	%		1.6
Operating loss	$	(11.8	)		-19.2	%	$	(9.5	)		-14.8	%	$	(2.3	)

Net sales and operating highlights were as follows:

• Net sales decreased $2.9 million from fiscal 2013 driven by declines in the Construction Services operating segment.

• Operating loss increased $2.3 million from fiscal 2013 driven by higher restructuring charges and an increase in expenses related to the wind down of our former Metal Framing operating segment. Restructuring charges in fiscal 2014 consisted of facility exit costs associated with the closure of our commercial stairs business and accrued severance related to our mid-rise construction business, which was shut down during May 2014. For additional information regarding these restructuring charges, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note D – Restructuring and Other Expense (Income)” of this Annual Report on Form 10-K.

Liquidity and Capital Resources

During fiscal 2015, we generated $214.4 million in cash from operating activities, spent $105.3 million on acquisitions and invested $96.3 million in property, plant and equipment. Additionally, we repurchased 4,176,187 of our common shares for $127.4 million and paid $46.4 million of dividends. The following table summarizes our consolidated cash flows for each period shown:

	Fiscal Years Ended May  31,
(in millions)	2015			2014
Net cash provided by operating activities	$	214.4		$	229.0
Net cash used by investing activities		(203.1	)		(46.2	)
Net cash used by financing activities		(170.3	)		(44.1	)
Increase (decrease) in cash and cash equivalents		(159.0	)		138.7
Cash and cash equivalents at beginning of period		190.1			51.4
Cash and cash equivalents at end of period	$	31.1		$	190.1

We believe we have access to adequate resources to meet our needs for normal operating costs, capital expenditures, debt repayments, dividend payments and working capital for our existing businesses. These

46

resources include cash and cash equivalents, cash provided by operating activities and unused lines of credit. We also believe we have adequate access to the financial markets to allow us to be in a position to sell long-term debt or equity securities. However, uncertainty and volatility in the financial markets may impact our ability to access capital and the terms under which we can do so.

The cash and equivalents balance at May 31, 2015 included $9.6 million of cash held by subsidiaries outside of the United States that the Company intends to reinvest indefinitely. Although the majority of this cash is available for repatriation, bringing the money into the United States could trigger federal, state and local income tax obligations.

Operating activities

Our business is cyclical and cash flows from operating activities may fluctuate during the year and from year to year due to economic and industry conditions. We rely on cash and short-term borrowings to meet cyclical increases in working capital needs. These needs generally rise during periods of increased economic activity or increasing raw material prices due to higher levels of inventory and accounts receivable. During economic slowdowns, or periods of decreasing raw material costs, working capital needs generally decrease as a result of the reduction of inventories and accounts receivable.

Net cash provided by operating activities was $214.4 million during fiscal 2015 compared to $229.0 million in fiscal 2014. The $14.6 million decrease in net cash provided by operating activities was primarily due to lower earnings compared to the previous year partially offset by a decrease in working capital needs due in part to the decline in the price of steel.

Investing activities

Net cash used by investing activities was $203.1 million during fiscal 2015 compared to $46.2 million in fiscal 2014. The increase of $156.9 million was driven primarily by an increase in the amount spent on acquisitions, higher capital expenditures and lower proceeds from the sale of assets. During fiscal 2015, we spent a combined $105.3 million, net of cash acquired, for the assets of Rome, MEF and JRE and our 79.59% interest in dHybrid and made capital expenditures of $96.3 million. During fiscal 2014, we made capital expenditures of $71.3 million, spent $11.5 million on acquisitions, net of cash acquired, and received $27.4 million of proceeds from the sale of assets. During fiscal 2014, the Company paid $28.9 million for the tank manufacturing division of Steffes, $35.6 million for its 75% interest in Worthington Aritas and $17.9 million for an additional 10% interest in TWB. However, the overall impact of the TWB transaction was a net increase in cash of $53.0 million, as TWB’s cash balance at the time of acquisition exceeded the cash paid for our additional 10% interest.

Capital expenditures reflect cash used for investment in property, plant and equipment and are presented below by reportable business segment (this information excludes cash flows related to acquisition and divestiture activity):

	Fiscal Year Ended May 31,
(in millions)	2015		2014
Steel Processing	$	34.5	$	16.7
Pressure Cylinders		35.9		32.4
Engineered Cabs		9.0		10.4
Other		16.9		11.8
Total Capital Expenditures	$	96.3	$	71.3

Capital expenditures increased $25.0 million in fiscal 2015 due primarily to spending associated with certain capital projects in Steel Processing and the costs associated with the renovation of the Company’s

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corporate headquarters, which was purchased in fiscal 2012. Capital expenditures in fiscal 2015 also included capital outlays associated with the construction of a new cryogenics manufacturing facility in Turkey and the rebuild of building and equipment destroyed in a fire at our cylinders facility in Austria in fiscal 2013.

Investment activities are largely discretionary and future investment activities could be reduced significantly or eliminated as economic conditions warrant. We assess acquisition opportunities as they arise, and such opportunities may require additional financing. There can be no assurance, however, that any such opportunities will arise, that any such acquisitions will be consummated or that any needed additional financing will be available on satisfactory terms when required.

Financing activities

Net cash used by financing activities was $170.3 million in fiscal 2015 compared to $44.1 million in the prior year. During fiscal 2015, we spent $127.4 million to repurchase 4,176,187 of our common shares and paid dividends of $46.4 million on our common shares. We also received proceeds from long-term debt of $30.6 million during fiscal 2015 related to borrowings against a five-year Euro-denominated term loan credit facility entered into by our consolidated joint venture in Turkey on September 26, 2014. Additionally, in December 2014, we repaid $100.0 million aggregate principal amount of unsecured floating rate senior notes due December 17, 2014 using a combination of cash on hand and borrowings available under our revolving credit facilities.

Long-term debt – Our senior unsecured long-term debt is rated “investment grade” by both Moody’s Investors Service, Inc. and Standard & Poor’s Ratings Group. We typically use the net proceeds from long-term debt for acquisitions, refinancing of outstanding debt, capital expenditures and general corporate purposes. As of May 31, 2015, we were in compliance with our long-term debt covenants. Our long-term debt agreements do not include ratings triggers or material adverse change provisions.

On September 26, 2014, our consolidated joint venture in Turkey, Worthington Aritas, executed a $28.0 million five-year term loan denominated in Euros. As of May 31, 2015, we had borrowed $27.0 million against the facility. The facility bears interest at a variable rate based on EURIBOR. The applicable variable rate was 1.519% at May 31, 2015. On October 15, 2014, we entered into an interest rate swap to fix the interest rate on $16.8 million of borrowings under this facility at 2.015% starting on December 26, 2014 through September 26, 2019. Borrowings against the facility are being used for the construction of a new cryogenics manufacturing facility in Turkey.

On April 15, 2014, we issued $250.0 million aggregate principal amount of unsecured senior notes due on April 15, 2026 (the “2026 Notes”). The 2026 Notes bear interest at a rate of 4.55%. The 2026 Notes were sold to the public at 99.789% of the principal amount thereof, to yield 4.573% to maturity. We used a portion of the net proceeds from the offering to repay borrowings then outstanding under both the Company’s $425.0 million revolving credit facility and its $100.0 million trade accounts receivable securitization facility, both of which are described in more detail below. Approximately $3.1 million, $1.9 million and $0.5 million of the aggregate proceeds were allocated to the settlement of a derivative contract entered into in anticipation of the issuance of the 2026 Notes, debt issuance costs, and the debt discount, respectively. The debt discount, debt issuance costs and the loss on the derivative contract were recorded on the consolidated balance sheet as of May 31, 2015 within long-term debt as a contra-liability, short- and long-term other assets and accumulated other comprehensive income (“AOCI”), respectively. Each will be recognized, through interest expense, in earnings over the term of the 2026 Notes.

On April 27, 2012, we executed a $5.9 million seven-year term loan that matures on May 1, 2019. The loan bears interest at a rate of 2.49% and is secured by an aircraft that was purchased with its proceeds.

On August 10, 2012, we issued $150.0 million aggregate principal amount of unsecured senior notes due August 10, 2024 (the “2024 Notes”). The 2024 Notes bear interest at a rate of 4.60%. The net proceeds from

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this issuance were used to repay a portion of the outstanding borrowings under our multi-year revolving credit facility and amounts outstanding under our revolving trade accounts receivable securitization facility.

On April 13, 2010, we issued $150.0 million aggregate principal amount of unsecured senior notes due on April 15, 2020 (the “2020 Notes”). The 2020 Notes bear interest at a rate of 6.50%. The 2020 Notes were sold to the public at 99.890% of the principal amount thereof, to yield 6.515% to maturity. We used the net proceeds from the offering to repay a portion of the then outstanding borrowings under our revolving credit facility and amounts then outstanding under our revolving trade accounts receivable securitization facility. Approximately $0.2 million, $1.5 million and $1.4 million of the aggregate proceeds were allocated to the debt discount, debt issuance costs, and the settlement of a derivative contract entered into in anticipation of the issuance of the 2020 Notes. The debt discount, debt issuance costs and the loss on the derivative contract were recorded on the consolidated balance sheets within long-term debt as a contra-liability, short- and long-term other assets and AOCI, respectively. Each will continue to be recognized, through interest expense, in our consolidated statements of earnings over the remaining term of the 2020 Notes.

Short-term borrowings – Our short-term debt agreements do not include ratings triggers or material adverse change provisions. We were in compliance with our short-term debt covenants at May 31, 2015.

We maintain a $500.0 million multi-year revolving credit facility (the “Credit Facility”) with a group of lenders that matures in April 2020. Borrowings under the Credit Facility have maturities of less than one year and given that our intention has been to repay them within a year, they have been classified as short-term borrowings within current liabilities on our consolidated balance sheets. However, we can also extend the term of amounts borrowed by renewing these borrowings for the term of the Credit Facility. We have the option to borrow at rates equal to an applicable margin over the LIBOR, Prime or Fed Funds rates. The applicable margin is determined by our credit rating and was 1.39% at May 31, 2015. Borrowings outstanding under the Credit Facility totaled $24.9 million at May 31, 2015.

We maintain a $100.0 million revolving trade accounts receivable securitization facility (the “AR Facility”) that was available throughout fiscal 2015 and fiscal 2014. During the third quarter of fiscal 2015, we extended the maturity of the AR Facility to January 2018. Pursuant to the terms of the AR Facility, certain of our subsidiaries sell their accounts receivable without recourse, on a revolving basis, to Worthington Receivables Corporation (“WRC”), a wholly-owned, consolidated, bankruptcy-remote subsidiary. In turn, WRC may sell without recourse, on a revolving basis, up to $100.0 million of undivided ownership interests in this pool of accounts receivable to a multi-seller, asset-backed commercial paper conduit (the “Conduit”). Purchases by the Conduit are financed with the sale of A1/P1 commercial paper. We retain an undivided interest in this pool and are subject to risk of loss based on the collectability of the receivables from this retained interest. Because the amount eligible to be sold excludes receivables more than 90 days past due, receivables offset by an allowance for doubtful accounts due to bankruptcy or other cause, concentrations over certain limits with specific customers and certain reserve amounts, we believe additional risk of loss is minimal. The book value of the retained portion of the pool of accounts receivable approximates fair value. As of May 31, 2015, the pool of eligible accounts receivable exceeded the $100.0 million limit, and $60.0 million of undivided interests in this pool of accounts receivable had been sold.

The remaining balance of short-term borrowings at May 31, 2015, consisted of $5.6 million outstanding under a $9.5 million credit facility maintained by our consolidated affiliate in India, Worthington Nitin Cylinders, that matured in November 2014 and bears interest at a variable rate. The applicable variable rate was 15.25% at May 31, 2015. The borrowings outstanding under the Nitin credit facility are currently in default; however, the lender has not called the note. The Company settled its portion of the obligation in June 2015.

Common shares – We declared dividends at a quarterly rate of $0.18 per common share for each quarter of fiscal 2015 compared to $0.15 per common share for each quarter of fiscal 2014. Dividends paid on our

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common shares totaled $46.4 million and $31.2 million, respectively, during fiscal 2015 and fiscal 2014. The increase was due in part to an accelerated cash dividend for the third and fourth quarters of fiscal 2013 totaling $0.26 per common share. The dividend was paid on December 28, 2012 to shareholders of record as of December 21, 2012. As a result, no dividends were paid on our common shares during the first quarter of fiscal 2014.

On June 29, 2011, the Board authorized the repurchase of up to 10,000,000 of our outstanding common shares, none of which remained available for repurchase at May 31, 2015. During fiscal 2015, 1,722,332 common shares were repurchased under this authorization.

On June 25, 2014, the Board authorized the repurchase of up to an additional 10,000,000 of our outstanding common shares. During fiscal 2105, an aggregate of 2,453,855 common shares were repurchased under this authorization. At May 31, 2015, 7,546,145 common shares remained available for repurchase under this authorization.

The common shares available for repurchase under these authorizations may be purchased from time to time, with consideration given to the market price of the common shares, the nature of other investment opportunities, cash flows from operations, general economic conditions and other relevant considerations. Repurchases may be made on the open market or through privately negotiated transactions.

Dividend Policy

We currently have no material contractual or regulatory restrictions on the payment of dividends. Dividends are declared at the discretion of the Board. The Board reviews the dividend quarterly and establishes the dividend rate based upon our financial condition, results of operations, capital requirements, current and projected cash flows, business prospects and other relevant factors. While we have paid a dividend every quarter since becoming a public company in 1968, there is no guarantee that payments will continue in the future.

Contractual Cash Obligations and Other Commercial Commitments

The following table summarizes our contractual cash obligations as of May 31, 2015. Certain of these contractual obligations are reflected in our consolidated balance sheet, while others are disclosed as future obligations in accordance with U.S. GAAP.

	Payments Due by Period
(in millions)	Total		Less Than 1 Year		1 - 3 Years		4 - 5 Years		After 5 Years
Short-term borrowings	$	90.5	$	90.5	$	-	$	-	$	-
Long-term debt		580.4		0.9		7.1		172.4		400.0
Interest expense on long-term debt		236.6		28.6		57.0		55.3		95.7
Operating leases		38.5		9.4		15.2		10.2		3.7
Royalty obligations		12.0		2.0		4.0		4.0		2.0
Total contractual cash obligations	$	958.0	$	131.4	$	83.3	$	241.9	$	501.4

Interest expense on long-term debt is computed by using the fixed rates of interest on the debt, including impacts of the related interest rate hedge. Royalty obligations relate to a trademark license agreement executed in connection with the acquisition of Coleman Cylinders in fiscal 2012. Due to the uncertainty regarding the timing of future cash outflows associated with our unrecognized tax benefits of $3.5 million, we are unable to make a reliable estimate of the periods of cash settlement with the respective tax authorities and have not included this amount in the contractual obligations table above.

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The following table summarizes our other commercial commitments as of May 31, 2015. These commercial commitments are not reflected in our consolidated balance sheet.

	Commitment Expiration by Period
(in millions)	Total		Less Than 1 Year		1 - 3 Years		4 - 5 Years		After 5 Years
Guarantees	$	13.4	$	13.4	$	-	$	-	$	-
Standby letters of credit		14.6		14.6		-		-		-
Total commercial commitments	$	28.0	$	28.0	$	-	$	-	$	-

Off-Balance Sheet Arrangements

We do not have guarantees or other off-balance sheet financing arrangements that we believe are reasonably likely to have a material current or future effect on our financial condition, changes in financial condition, revenue or expenses, results of operations, liquidity, capital expenditures or capital resources. However, as of May 31, 2015, we were party to an operating lease for an aircraft in which we have guaranteed a residual value at the termination of the lease. The maximum obligation under the terms of this guarantee was approximately $11.7 million at May 31, 2015. We have also guaranteed the repayment of a $1.7 million term loan held by ArtiFlex, an unconsolidated joint venture. In addition, we had in place approximately $14.6 million of outstanding stand-by letters of credit at May 31, 2015. These letters of credit were issued to third-party service providers and had no amounts drawn against them at May 31, 2015. Based on current facts and circumstances, we have estimated the likelihood of payment pursuant to these guarantees, and determined that the fair value of our obligation under each guarantee based on those likely outcomes is not material.

Recently Issued Accounting Standards

In May 2014, amended accounting guidance was issued that replaces most existing revenue recognition guidance under U.S. GAAP. The amended guidance requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The amended guidance is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is not permitted. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations. The amended guidance permits the use of either the retrospective or cumulative effect transition method. We have not selected a transition method nor have we determined the effect of the amended guidance on our ongoing financial reporting.

Environmental

We do not believe that compliance with environmental laws has or will have a material effect on our capital expenditures, future results of operations or financial position or competitive position.

Inflation

The effects of inflation on our operations were not significant during the periods presented in the consolidated financial statements.

Critical Accounting Policies

The discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in accordance with U.S. GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the

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reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. We continually evaluate our estimates, including those related to our valuation of receivables, inventories, intangible assets, accrued liabilities, income and other tax accruals and contingencies and litigation. We base our estimates on historical experience and various other assumptions that we believe to be reasonable under the circumstances. These results form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Critical accounting policies are defined as those that reflect our significant judgments and uncertainties that could potentially result in materially different results under different assumptions and conditions. Although actual results historically have not deviated significantly from those determined using our estimates, as discussed below, our financial position or results of operations could be materially different if we were to report under different conditions or to use different assumptions in the application of such policies. We believe the following accounting policies are the most critical to us, as these are the primary areas where financial information is subject to our estimates, assumptions and judgment in the preparation of our consolidated financial statements.

Revenue Recognition:    We recognize revenue upon transfer of title and risk of loss provided evidence of an arrangement exists, pricing is fixed and determinable and the ability to collect is probable. In circumstances where the collection of payment is not probable at the time of shipment, we defer recognition of revenue until payment is collected. We provide for returns and allowances based on historical experience and current customer activities.

Receivables:    In order to ensure that our receivables are properly valued, we utilize two contra-receivable accounts: returns and allowances and allowance for doubtful accounts. Returns and allowances are used to record estimates of returns or other allowances resulting from quality, delivery, discounts or other issues affecting the value of receivables. This account is estimated based on historical trends and current market conditions, with the offset to net sales.

The allowance for doubtful accounts is used to record the estimated risk of loss related to the customers’ inability to pay. This allowance is maintained at a level that we consider appropriate based on factors that affect collectability, such as the financial health of our customers, historical trends of charge-offs and recoveries and current economic and market conditions. As we monitor our receivables, we identify customers that may have payment problems, and we adjust the allowance accordingly, with the offset to SG&A expense. Account balances are charged off against the allowance when recovery is considered remote.

We review our receivables on an ongoing basis to ensure that they are properly valued and collectible. Based on this review, we believe our related reserves are sized appropriately. The reserve for doubtful accounts increased approximately $0.1 million during fiscal 2015 to $3.1 million.

While we believe our allowances are adequate, changes in economic conditions, the financial health of customers and bankruptcy settlements could impact our future earnings. If the economic environment and market conditions deteriorate, particularly in the automotive and construction end markets where our exposure is greatest, additional reserves may be required.

Inventory Valuation:    Inventories are valued at the lower of cost or market. Cost is determined using the first-in, first-out method for all inventories. Due to the decline in steel prices, the replacement cost of our inventory was lower than what was reflected in our records at May 31, 2015. Accordingly, we recorded a lower of cost or market adjustment of $1.7 million at May 31, 2015 to reflect this lower value. The entire amount related to our Steel Processing operating segment and was recorded in cost of goods sold. We believe our inventories were valued appropriately as of May 31, 2015 and May 31, 2014.

Impairment of Definite-Lived Long-Lived Assets:    We review the carrying value of our long-lived assets, including intangible assets with finite useful lives, for impairment whenever events or changes in

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circumstances indicate that the carrying value of an asset or asset group may not be recoverable. Impairment testing involves a comparison of the sum of the undiscounted future cash flows of the asset or asset group to its respective carrying amount. If the sum of the undiscounted future cash flows exceeds the carrying amount, then no impairment exists. If the carrying amount exceeds the sum of the undiscounted future cash flows, then a second step is performed to determine the amount of impairment, if any, to be recognized. An impairment loss is recognized to the extent that the carrying amount of the asset or asset group exceeds fair value.

Fiscal 2015:    During the fourth quarter of fiscal 2015, we determined that indicators of impairment were present with regard to intangible assets related to our CNG fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value, resulting in an impairment charge of $2.3 million.

During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs reporting unit was necessary. Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs reporting unit for recoverability. Recoverability was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sums of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values, resulting in impairment charges of $22.4 million for the customer relationship intangible asset and $14.3 million for the property, plant and equipment of the Florence asset group.

During the second quarter of fiscal 2015, management committed to a plan to sell the assets of the Advanced Component Technologies, Inc. business within Engineered Cabs. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell, resulting in an impairment charge of $2.4 million. During the third quarter of fiscal 2015, the Company completed the sale of this business and recognized a gain of $332,000.

During the second quarter of fiscal 2015, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value, resulting in an impairment charge of $3.2 million. During the fourth quarter of fiscal 2015, the Company completed the sale of this business. A loss of $3.3 million was recognized as a result of the transaction, including $1.9 million of allocated goodwill and a $664,000 accrual for expected severance costs.

During the second quarter of fiscal 2015, we determined that indicators of impairment were present at the Company’s military construction business. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value, resulting in an impairment charge of $1.2 million, which represents the remaining book value of the asset group.

During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%- owned consolidated joint venture in India, Worthington Nitin Cylinders. As all of the criteria for classification as assets held for sale were met, the net assets of the business were presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell as of

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May 31, 2014. As a result of changes in facts and circumstances related to the planned sale of Worthington Nitin Cylinders during the second quarter of fiscal 2015, the Company reassessed the fair value of the business and determined that the remaining book value should be written off resulting in an impairment charge of $6.4 million.

During the fourth quarter of fiscal 2014, management committed to a plan to sell certain non-core Steel Processing assets. As all of the criteria for classification as assets held for sale were met, the net assets of the business have been presented separately as assets held for sale in our consolidated balance sheets as of May 31, 2015 and 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell as of May 31, 2014. As a result of changes in facts and circumstances related to the planned sale, the Company reassessed the fair value of the business resulting in additional impairment charges totaling $3.1 million during fiscal 2015.

Fiscal 2014:     During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. As all of the criteria for classification as assets held for sale were met, the net assets of this business are presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $5.9 million, was lower than its net book value, an impairment charge of $19.0 million was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest of $7.6 million was recorded within net earnings attributable to noncontrolling interest in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s stainless steel business, Precision Specialty Metals. As all of the criteria for classification as assets held for sale were met, the net assets of this business are presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $19.0 million, was lower than its net book value, an impairment charge of $7.1 million was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7.0 million, resulting in an impairment charge of $1.4 million within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

During the second quarter of fiscal 2014, we committed to a re-branding initiative. Under the re-branding initiative, we re-branded substantially all of our businesses under the Worthington Industries name. In connection with the change in branding strategy, we discontinued the use of all non-Worthington trade names except those related to consumer products such as BernzOmatic^® and Balloon Time^® and those related to our joint ventures. As a result, we determined an impairment indicator was present for the trade names that have been or will be discontinued. As no future cash flows will be attributed to the impacted trade names, the entire book value was written off, resulting in an impairment charge of $30.7 million within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

Impairment of Indefinite-Lived Long-Lived Assets:     Goodwill and intangible assets with indefinite lives are not amortized, but instead are tested for impairment annually, during the fourth quarter, or more frequently if events or changes in circumstances indicate that impairment may be present. Application of goodwill

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impairment testing involves judgment, including but not limited to, the identification of reporting units and estimation of the fair value of each reporting unit. A reporting unit is defined as an operating segment or one level below an operating segment. We test goodwill at the operating segment level as we have determined that the characteristics of the reporting units within each operating segment are similar and allow for their aggregation in accordance with the applicable accounting guidance.

The goodwill impairment test consists of comparing the fair value of each operating segment, determined using discounted cash flows, to each operating segment’s respective carrying value. If the estimated fair value of an operating segment exceeds its carrying value, there is no impairment. If the carrying amount of the operating segment exceeds its estimated fair value, goodwill impairment is indicated. The amount of the impairment is determined by comparing the fair value of the net assets of the operating segment, excluding goodwill, to its estimated fair value, with the difference representing the implied fair value of the goodwill. If the implied fair value of the goodwill is lower than its carrying value, the difference is recorded as an impairment charge in our consolidated statements of earnings. The impairment test for indefinite-lived intangible assets consists of a comparison of the fair value of the intangible asset to its carrying value. If the carrying value of the intangible asset exceeds its fair value, the difference is recorded as an impairment charge in our consolidated statements of earnings.

During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs operating segment was necessary. This conclusion was based on certain indicators of impairment, including the decision to close the Company’s unprofitable Engineered Cabs facility in Florence, South Carolina, and significant downward revisions to forecasted cash flows as a result of continued weakness in the mining and agricultural end markets and higher than expected manufacturing costs.

Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs operating segment for recoverability. Recoverability was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of the undiscounted future cash flows for both the customer relationship intangible asset and the property, plant and equipment of the Florence facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values, resulting in impairment charges of $22.4 million for the customer relationship intangible asset and $14.3 million for the property, plant and equipment of the Florence asset group during the third quarter of fiscal 2015.

In addition to the above, the Company also determined that sufficient indicators of potential impairment existed to require an interim goodwill analysis of the Engineered Cabs operating segment. A comparison of the fair value of the Engineered Cabs operating segment, determined using discounted cash flows, to its carrying value indicated potential goodwill impairment. After a subsequent review of the fair value of the net assets of Engineered Cabs, it was determined that the implied fair value of goodwill was $0 and, as a result, the entire $44.9 million goodwill balance was written off during the third quarter of fiscal 2015.

We performed our annual impairment evaluation of goodwill and other indefinite-lived intangible assets during the fourth quarter of fiscal 2015 and concluded that the fair value of each reporting unit exceeded its carrying value; therefore, no additional impairment charges were recognized.

Accounting for Derivatives and Other Contracts at Fair Value:    We use derivatives in the normal course of business to manage our exposure to fluctuations in commodity prices, foreign currency and interest rates. Fair values for these contracts are based upon valuation methodologies deemed appropriate in the circumstances; however, the use of different assumptions could affect the estimated fair values.

Stock-Based Compensation:    All share-based awards, including those to employees and non-employee directors, are recorded as expense in the consolidated statements of earnings based on the fair value of the award at the date of grant.

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Income Taxes:    In accordance with the authoritative accounting guidance, we account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and financial reporting basis of our assets and liabilities. In assessing the realizability of deferred tax assets, we consider whether it is more likely than not that some, or a portion, of the deferred tax assets will not be realized. We provide a valuation allowance for deferred income tax assets when it is more likely than not that a portion of such deferred income tax assets will not be realized.

In accordance with accounting literature related to uncertainty in income taxes, tax benefits from uncertain tax positions that are recognized in the financial statements are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.

We have reserves for taxes and associated interest and penalties that may become payable in future years as a result of audits by taxing authorities. It is our policy to record these in income tax expense. While we believe the positions taken on previously filed tax returns are appropriate, we have established the tax and interest reserves in recognition that various taxing authorities may challenge our positions. The tax reserves are analyzed periodically, and adjustments are made as events occur to warrant adjustment to the reserves, such as lapsing of applicable statutes of limitations, conclusion of tax audits, additional exposure based on current calculations, identification of new issues, and release of administrative guidance or court decisions affecting a particular tax issue.

Self-Insurance Reserves:     We are largely self-insured with respect to workers’ compensation, general and automobile liability, property damage, employee medical claims and other potential losses. In order to reduce risk and better manage our overall loss exposure, we purchase stop-loss insurance that covers individual claims in excess of the deductible amounts. We maintain reserves for the estimated cost to settle open claims, which includes estimates of legal costs expected to be incurred, as well as an estimate of the cost of claims that have been incurred but not reported. These estimates are based on actuarial valuations that take into consideration the historical average claim volume, the average cost for settled claims, current trends in claim costs, changes in our business and workforce, general economic factors and other assumptions believed to be reasonable under the circumstances. The estimated reserves for these liabilities could be affected if future occurrences and claims differ from assumptions used and historical trends. Facility consolidations, a focus on safety initiatives and an emphasis on property loss prevention and product quality have resulted in an improvement in our loss history and the related assumptions used to analyze many of the current self-insurance reserves. We will continue to review these reserves on a quarterly basis, or more frequently if factors dictate a more frequent review is warranted.

The critical accounting policies discussed herein are not intended to be a comprehensive list of all of our accounting policies. In many cases, the accounting treatment of a particular transaction is specifically dictated by U.S. GAAP, with a lesser need for our judgment in their application. There are also areas in which our judgment in selecting an available alternative would not produce a materially different result.

Item 7A. – Quantitative and Qualitative Disclosures About Market Risk

In the normal course of business, we are exposed to various market risks. We continually monitor these risks and regularly develop appropriate strategies to manage them. Accordingly, from time to time, we may enter into certain financial and commodity-based derivative instruments. These instruments are used solely to mitigate market exposure and are not used for trading or speculative purposes. Refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note P – Derivative Instruments and Hedging Activities” of this Annual Report on Form 10-K for additional information.

Interest Rate Risk

We entered into an interest rate swap in March 2014, in anticipation of the issuance of $250.0 million principal amount of our 2026 Notes. Refer to “Item 8. – Financial Statements and Supplementary Data – Notes

56

to Consolidated Financial Statements – Note G – Debt and Receivables Securitization” of this Annual Report on Form 10-K for additional information regarding the 2026 Notes. The interest rate swap had a notional amount of $150.0 million to hedge the risk of changes in the semi-annual interest payments attributable to changes in the benchmark interest rate during the several days leading up to the issuance of the 12-year fixed-rate debt. Upon pricing of the 2026 Notes, the derivative was settled and resulted in a loss of approximately $3.1 million, a significant portion of which was reflected within accumulated other comprehensive income in our consolidated statement of equity and will be recognized in earnings, as an increase to interest expense, over the life of the related 2026 Notes.

We entered into a U.S. Treasury Rate-based treasury lock in April 2010, in anticipation of the issuance of $150.0 million principal amount of our 2020 Notes. Refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note G – Debt and Receivables Securitization” of this Annual Report on Form 10-K for additional information regarding the 2020 Notes. The treasury lock had a notional amount of $150.0 million to hedge the risk of changes in the semi-annual interest payments attributable to changes in the benchmark interest rate during the several days leading up to the issuance of the 10-year fixed-rate debt. Upon pricing of the 2020 Notes, the derivative was settled and resulted in a loss of approximately $1.4 million, which has been reflected within accumulated other comprehensive income in our consolidated statements of equity. That balance is being recognized in earnings, as an increase to interest expense, over the life of the related 2020 Notes.

Foreign Currency Risk

The translation of foreign currencies into United States dollars subjects us to exposure related to fluctuating exchange rates. Derivative instruments are not used to manage this risk; however, we do make use of forward contracts to manage exposure to certain intercompany loans with our foreign affiliates as well as exposure to transactions denominated in a currency other than the related foreign affiliate’s local currency. Such contracts limit exposure to both favorable and unfavorable currency fluctuations. At May 31, 2015, the difference between the contract and book value of these instruments was not material to our consolidated financial position, results of operations or cash flows. A 10% change in the exchange rate to the U.S. dollar forward rate is not expected to materially impact our consolidated financial position, results of operations or cash flows. A sensitivity analysis of changes in the U.S. dollar on these foreign currency-denominated contracts indicates that if the U.S. dollar uniformly weakened by 10% against all of these currency exposures, the fair value of these instruments would not be materially impacted. Any resulting changes in fair value would be offset by changes in the underlying hedged balance sheet position. A sensitivity analysis of changes in the currency exchange rates of our foreign locations indicates that a 10% increase in those rates would not have materially impacted our net results. The sensitivity analysis assumes a uniform shift in all foreign currency exchange rates. The assumption that exchange rates change in uniformity may overstate the impact of changing exchange rates on assets and liabilities denominated in a foreign currency.

Commodity Price Risk

We are exposed to market risk for price fluctuations on purchases of steel, natural gas, zinc and other raw materials as well as our utility requirements. We attempt to negotiate the best prices for commodities and to competitively price products and services to reflect the fluctuations in market prices. Derivative financial instruments have been used to manage a portion of our exposure to fluctuations in the cost of certain commodities, including steel, natural gas, zinc and other raw materials. These contracts covered periods commensurate with known or expected exposures throughout fiscal 2015. The derivative instruments were executed with highly rated financial institutions. No credit loss is anticipated. No derivatives are held for trading purposes.

A sensitivity analysis of changes in the price of hedged commodities indicates that a 10% decline in the market prices of steel, zinc, natural gas or any combination of these would not have a material impact to the value of our hedges or our reported results.

57

The fair values of our outstanding derivative positions as of May 31, 2015 and 2014 are summarized below. Fair values of these derivatives do not consider the offsetting impact of the underlying hedged item.

	Fair Value At May 31,
(in millions)	2015			2014
Interest rate	$	(0.2	)	$	(4.2	)
Foreign currency		0.1			-
Commodity		(21.9	)		1.0
	$	(22.0	)	$	(3.2	)

Safe Harbor

Quantitative and qualitative disclosures about market risk include forward-looking statements with respect to management’s opinion about risks associated with the use of derivative instruments. These statements are based on certain assumptions with respect to market prices and industry supply of, and demand for, steel products and certain raw materials. To the extent these assumptions prove to be inaccurate, future outcomes with respect to hedging programs may differ materially from those discussed in the forward-looking statements.

58

Item 8. – Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders

Worthington Industries, Inc.:

We have audited the accompanying consolidated balance sheets of Worthington Industries, Inc. and subsidiaries as of May 31, 2015 and 2014, and the related consolidated statements of earnings, comprehensive income, equity, and cash flows for each of the years in the three-year period ended May 31, 2015. In connection with our audits of the consolidated financial statements, we also have audited the financial statement schedule of valuation and qualifying accounts. These consolidated financial statements and financial statement schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Worthington Industries, Inc. and subsidiaries as of May 31, 2015 and 2014, and the results of their operations and their cash flows for each of the years in the three-year period ended May 31, 2015, in conformity with U.S. generally accepted accounting principles. Also in our opinion, the related financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Worthington Industries, Inc.’s internal control over financial reporting as of May 31, 2015, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated July 30, 2015 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

/s/KPMG LLP

Columbus, Ohio

July 30, 2015

59

WORTHINGTON INDUSTRIES, INC.

CONSOLIDATED BALANCE SHEETS

(In thousands)

	May 31,
	2015		2014
ASSETS
Current assets:
Cash and cash equivalents	$	31,067	$	190,079
Receivables, less allowances of $3,085 and $3,043 at May 31, 2015 and 2014, respectively		474,292		493,127
Inventories:
Raw materials		181,975		213,173
Work in process		107,069		105,872
Finished products		85,931		90,957
Total inventories		374,975		410,002
Income taxes receivable		12,119		5,438
Assets held for sale		23,412		32,235
Deferred income taxes		22,034		24,272
Prepaid expenses and other current assets		54,294		43,769
Total current assets		992,193		1,198,922
Investments in unconsolidated affiliates		196,776		179,113
Goodwill		238,999		251,093
Other intangible assets, net of accumulated amortization of $47,547 and $35,506 at May 31, 2015 and 2014, respectively		119,117		145,993
Other assets		24,867		22,399
Property, plant and equipment:
Land		16,017		15,260
Buildings and improvements		218,182		213,848
Machinery and equipment		872,986		848,889
Construction in progress		40,753		32,135
Total property, plant and equipment		1,147,938		1,110,132
Less accumulated depreciation		634,748		611,271
Total property, plant and equipment, net		513,190		498,861
Total assets	$	2,085,142	$	2,296,381

See notes to consolidated financial statements.

60

WORTHINGTON INDUSTRIES, INC.

CONSOLIDATED BALANCE SHEETS

(In thousands)

	May 31,
	2015			2014
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	294,129		$	333,744
Short-term borrowings		90,550			10,362
Accrued compensation, contributions to employee benefit plans and related taxes		66,252			78,514
Dividends payable		12,862			11,044
Other accrued items		56,913			49,873
Income taxes payable		2,845			4,953
Current maturities of long-term debt		841			101,173
Total current liabilities		524,392			589,663
Other liabilities		58,269			76,426
Distributions in excess of investment in unconsolidated affiliate		61,585			59,287
Long-term debt		579,352			554,790
Deferred income taxes		21,495			71,333
Total liabilities		1,245,093			1,351,499
Shareholders’ equity – controlling interest:
Preferred shares, without par value; authorized – 1,000,000 shares; issued and outstanding – none		-			-
Common shares, without par value; authorized – 150,000,000 shares; issued and outstanding, 2015 – 64,141,478 shares, 2014 – 67,408,484 shares		-			-
Additional paid-in capital		289,078			262,610
Accumulated other comprehensive loss, net of taxes of $16,909 and $8,043 at May 31, 2015 and 2014, respectively		(50,704	)		(3,581	)
Retained earnings		510,738			591,783
Total shareholders’ equity – controlling interest		749,112			850,812
Noncontrolling interests		90,937			94,070
Total equity		840,049			944,882
Total liabilities and equity	$	2,085,142		$	2,296,381

See notes to consolidated financial statements.

61

WORTHINGTON INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF EARNINGS

(In thousands, except per share amounts)

	Fiscal Years Ended May 31,
	2015			2014			2013
Net sales	$	3,384,234		$	3,126,426		$	2,612,244
Cost of goods sold		2,920,701			2,633,907			2,215,601
Gross margin		463,533			492,519			396,643
Selling, general and administrative expense		295,920			300,396			258,324
Impairment of goodwill and long-lived assets		100,129			58,246			6,488
Restructuring and other expense (income)		6,514			(2,912	)		3,293
Joint venture transactions		413			1,036			(604	)
Operating income		60,557			135,753			129,142
Other income (expense):
Miscellaneous income		795			16,963			1,452
Interest expense		(35,800	)		(26,671	)		(23,918	)
Equity in net income of unconsolidated affiliates		87,476			91,456			94,624
Earnings before income taxes		113,028			217,501			201,300
Income tax expense		25,772			57,349			64,465
Net earnings		87,256			160,152			136,835
Net earnings attributable to noncontrolling interests		10,471			8,852			393
Net earnings attributable to controlling interest	$	76,785		$	151,300		$	136,442
Basic
Average common shares outstanding		66,309			68,944			69,301
Earnings per share attributable to controlling interest	$	1.16		$	2.19		$	1.97
Diluted
Average common shares outstanding		68,483			71,664			71,314
Earnings per share attributable to controlling interest	$	1.12		$	2.11		$	1.91

See notes to consolidated financial statements.

62

WORTHINGTON INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In thousands)

	2015			2014			2013
Net earnings	$	87,256		$	160,152		$	136,835
Other comprehensive income (loss):
Foreign currency translation		(34,229	)		7,618			5,393
Pension liability adjustment, net of tax		(3,738	)		(1,044	)		2,273
Cash flow hedges, net of tax		(11,653	)		2,509			698
Other comprehensive income (loss)		(49,620	)		9,083			8,364
Comprehensive income		37,636			169,235			145,199
Comprehensive income attributable to noncontrolling interests		7,974			9,480			406
Comprehensive income attributable to controlling interest	$	29,662		$	159,755		$	144,793

See notes to consolidated financial statements.

63

WORTHINGTON INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF EQUITY

(Dollars in thousands, except per share amounts)

	Controlling Interest
	Common Shares					Additional Paid-in Capital			Accumulated Other Comprehensive Income (Loss), Net of Tax			Retained Earnings			Total			Noncontrolling Interest			Total
	Shares			Amount
Balance at May 31, 2012		67,906,369			-		192,338			(20,387	)		525,223			697,174			50,263			747,437
Net earnings		-			-		-			-			136,442			136,442			393			136,835
Other comprehensive income		-			-		-			8,351			-			8,351			13			8,364
Common shares issued, net of withholding tax		2,771,042			-		37,914			-			-			37,914			-			37,914
Stock-based compensation		-			-		17,829			-			-			17,829			-			17,829
Purchases and retirement of common shares		(925,000	)				(3,217	)					(27,200	)		(30,417	)		-			(30,417	)
Payments to noncontrolling interests		-			-		-			-			-			-			(9,254	)		(9,254	)
Cash dividends declared ($0.52 per share)		-			-		-			-			(36,471	)		(36,471	)		-			(36,471	)
Balance at May 31, 2013		69,752,411			-		244,864			(12,036	)		597,994			830,822			41,415			872,237
Net earnings		-			-		-			-			151,300			151,300			8,852			160,152
Other comprehensive income		-			-		-			8,455			-			8,455			628			9,083
Acquisition of PSI Energy Solutions, LLC		-			-		-			-			-			-			84,144			84,144
Common shares issued, net of withholding tax		1,036,573			-		4,618			-			-			4,618			-			4,618
Stock-based compensation		-			-		25,651			-			-			25,651			-			25,651
Purchases and retirement of common shares		(3,380,500	)		-		(12,523	)		-			(115,695	)		(128,218	)		-			(128,218	)
Payments to noncontrolling interests		-			-		-			-			-			-			(40,969	)		(40,969	)
Cash dividends declared ($0.60 per share)		-			-		-			-			(41,816	)		(41,816	)		-			(41,816	)
Balance at May 31, 2014		67,408,484		$	-	$	262,610		$	(3,581	)	$	591,783		$	850,812		$	94,070		$	944,882
Net earnings		-			-		-			-			76,785			76,785			10,471			87,256
Other comprehensive loss		-			-		-			(47,123	)		-			(47,123	)		(2,497	)		(49,620	)
Acquisition of dHybrid Systems, LLC		-			-		-			-			-			-			4,082			4,082
Common shares issued, net of withholding tax		909,181			-		2,910			-			-			2,910			-			2,910
Theoretical common shares in NQ plans		-			-		14,560			-			-			14,560			-			14,560
Stock-based compensation		-			-		26,837			-			-			26,837			-			26,837
Purchases and retirement of common shares		(4,176,187	)		-		(17,839	)		-			(109,521	)		(127,360	)		-			(127,360	)
Payments to noncontrolling interests		-			-		-			-			-			-			(15,189	)		(15,189	)
Cash dividends declared ($0.72 per share)		-			-		-			-			(48,309	)		(48,309	)		-			(48,309	)
Balance at May 31, 2015		64,141,478		$	-	$	289,078		$	(50,704	)	$	510,738		$	749,112		$	90,937		$	840,049

See notes to consolidated financial statements.

64

WORTHINGTON INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

	Fiscal Years Ended May 31,
	2015			2014			2013
Operating activities:
Net earnings	$	87,256		$	160,152		$	136,835
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization		85,089			79,730			66,469
Impairment of goodwill and long-lived assets		100,129			58,246			6,488
Provision (benefit) for deferred income taxes		(39,960	)		(25,916	)		1,798
Bad debt expense		259			32			783
Equity in net income of unconsolidated affiliates, net of distributions		(12,299	)		(15,333	)		(10,948	)
Net loss (gain) on sale of assets		3,277			(11,212	)		1,121
Stock-based compensation		17,916			22,017			13,270
Excess tax benefits – stock-based compensation		(7,178	)		(8,880	)		(5,183	)
Gain on previously held equity interest in TWB Company, L.L.C.		-			(11,000	)		-
Changes in assets and liabilities, net of impact of acquisitions:
Receivables		32,011			(49,206	)		18,801
Inventories		54,108			(38,010	)		77,115
Prepaid expenses and other current assets		(15,295	)		(2,921	)		871
Other assets		1,617			(5,278	)		4,636
Accounts payable and accrued expenses		(83,190	)		69,682			(47,483	)
Other liabilities		(9,365	)		6,943			8,404
Net cash provided by operating activities		214,375			229,046			272,977
Investing activities:
Investment in property, plant and equipment		(96,255	)		(71,338	)		(44,588	)
Investment in notes receivable		(7,300	)		-			-
Acquisitions, net of cash acquired		(105,291	)		(11,517	)		(175,225	)
Distributions from (investment in) unconsolidated affiliate(s)		(8,230	)		9,223			863
Proceeds from sale of assets and insurance		14,007			27,438			16,974
Net cash used by investing activities		(203,069	)		(46,194	)		(201,976	)
Financing activities:
Net proceeds from (payments of) short-term borrowings, net of issuance costs		79,047			(103,618	)		(168,446	)
Proceeds from long-term debt, net of issuance costs		30,572			247,566			150,000
Principal payments on long-term debt		(102,852	)		(1,219	)		(1,480	)
Proceeds from issuance of common shares		2,910			4,618			37,914
Excess tax benefits – stock-based compensation		7,178			8,880			5,183
Payments to noncontrolling interests		(13,379	)		(40,969	)		(9,254	)
Repurchase of common shares		(127,360	)		(128,218	)		(30,417	)
Dividends paid		(46,434	)		(31,198	)		(44,144	)
Net cash used by financing activities		(170,318	)		(44,158	)		(60,644	)
Increase (decrease) in cash and cash equivalents		(159,012	)		138,694			10,357
Cash and cash equivalents at beginning of year		190,079			51,385			41,028
Cash and cash equivalents at end of year	$	31,067		$	190,079		$	51,385

See notes to consolidated financial statements.

65

WORTHINGTON INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Fiscal Years Ended May 31, 2015, 2014 and 2013

Note A – Summary of Significant Accounting Policies

Consolidation:    The consolidated financial statements include the accounts of Worthington Industries, Inc. and consolidated subsidiaries (collectively, “we,” “our,” “Worthington,” or the “Company”). Investments in unconsolidated affiliates are accounted for using the equity method. Significant intercompany accounts and transactions are eliminated.

dHybrid Systems, LLC (“dHybrid”), Spartan Steel Coating, LLC (“Spartan”), TWB Company, L.L.C. (“TWB”), Worthington Aritaş Basinçli Kaplar Sanayi (“Worthington Aritas”), Worthington Energy Innovations, LLC (“WEI”), and Worthington Nitin Cylinders Limited (“Worthington Nitin Cylinders”) in which we own controlling interests of 79.59%, 52%, 55%, 75%, 75%, and 60%, respectively, are consolidated with the equity owned by the other joint venture members shown as noncontrolling interests in our consolidated balance sheets, and the other joint venture members’ portions of net earnings and other comprehensive income shown as net earnings or comprehensive income attributable to noncontrolling interests in our consolidated statements of earnings and consolidated statements of comprehensive income, respectively.

Use of Estimates:    The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents:    We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.

Inventories:    Inventories are valued at the lower of cost or market. Cost is determined using the first-in, first-out method for all inventories. Due to the decline in steel prices, the replacement cost of our inventory was lower than what was reflected in our records at May 31, 2015. Accordingly, we recorded a lower of cost or market adjustment of $1,716,000 at May 31, 2015 to reflect this lower value. The entire amount related to our Steel Processing operating segment and was recorded in cost of goods sold. We believe our inventories were valued appropriately as of May 31, 2015 and May 31, 2014.

Derivative Financial Instruments:    We utilize derivative financial instruments to manage exposure to certain risks related to our ongoing operations. The primary risks managed through the use of derivative instruments include interest rate risk, currency exchange risk and commodity price risk. All derivative instruments are accounted for using mark-to-market accounting. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it. Gains and losses on fair value hedges are recognized in current period earnings in the same line as the underlying hedged item. The effective portion of gains and losses on cash flow hedges is deferred as a component of accumulated other comprehensive income or loss (“AOCI”) and recognized in earnings at the time the hedged item affects earnings, in the same financial statement caption as the underlying hedged item. Ineffectiveness of the hedges during the fiscal year ended May 31, 2015 (“fiscal 2015”), the fiscal year ended May 31, 2014 (“fiscal 2014”) and the fiscal year ended May 31, 2013 (“fiscal 2013”) was immaterial. Classification in the consolidated statements of earnings of gains and losses related to derivative instruments that do not qualify for hedge accounting is determined based on the underlying intent of the instruments. Cash flows related to derivative instruments are generally classified as operating activities in our consolidated statements of cash flows.

In order for hedging relationships to qualify for hedge accounting under current accounting guidance, we formally document each hedging relationship and its risk management objective. This documentation

66

includes the hedge strategy, the hedging instrument, the hedged item, the nature of the risk being hedged, how hedge effectiveness will be assessed prospectively and retrospectively as well as a description of the method used to measure hedge ineffectiveness.

Derivative instruments are executed only with highly-rated financial institutions. No credit loss is anticipated on existing instruments, and no such material losses have been experienced to date. We monitor our positions, as well as the credit ratings of counterparties to those positions.

We discontinue hedge accounting when it is determined that the derivative instrument is no longer effective in offsetting the hedged risk, expires or is sold, is terminated or is no longer designated as a hedging instrument because it is unlikely that a forecasted transaction will occur or we determine that designation of the hedging instrument is no longer appropriate. In all situations in which hedge accounting is discontinued and the derivative instrument is retained, we continue to carry the derivative instrument at its fair value on the consolidated balance sheet and recognize any subsequent changes in its fair value in net earnings immediately. When it is probable that a forecasted transaction will not occur, we discontinue hedge accounting and immediately recognize the gains and losses that were accumulated in AOCI.

Refer to “Note P – Derivative Instruments and Hedging Activities” for additional information regarding the consolidated balance sheet location and the risk classification of our derivative instruments.

Risks and Uncertainties:    As of May 31, 2015, we, together with our unconsolidated affiliates, operated 83 manufacturing facilities in 26 states and 11 countries. A total of 33 of these facilities are operated by wholly-owned and consolidated subsidiaries of the Company. The remaining facilities are operated by our consolidated and unconsolidated joint ventures. As of May 31, 2015, we held equity positions in 13 active joint ventures, of which six are consolidated. Our largest market is the automotive market, which comprised 38% and 36% of consolidated net sales in fiscal 2015 and fiscal 2014, respectively. Our foreign operations represented 6% and 7% of consolidated net sales, (2)% of pre-tax earnings attributable to controlling interest, and 14% and 15% of consolidated net assets as of and for the years ended May 31, 2015 and 2014, respectively. As of May 31, 2015, approximately 6% of our consolidated labor force was represented by collective bargaining agreements. The concentration of credit risks from financial instruments related to the markets we serve is not expected to have a material adverse effect on our consolidated financial position, cash flows or future results of operations.

In fiscal 2015, our largest customer accounted for approximately 7% of our consolidated net sales, and our ten largest customers accounted for approximately 29% of our consolidated net sales. A significant loss of, or decrease in, business from any of these customers could have an adverse effect on our sales and financial results if we cannot obtain replacement business. Also, due to consolidation within the industries we serve, including the construction, automotive and retail industries, our sales may be increasingly sensitive to deterioration in the financial condition of, or other adverse developments with respect to, one or more of our largest customers.

Our principal raw material is flat-rolled steel, which we purchase from multiple primary steel producers. The steel industry as a whole has been cyclical, and at times availability and pricing can be volatile due to a number of factors beyond our control. This volatility can significantly affect our steel costs. In an environment of increasing prices for steel and other raw materials, in general, competitive conditions may impact how much of the price increases we can pass on to our customers. To the extent we are unable to pass on future price increases in our raw materials to our customers, our financial results could be adversely affected. Also, if steel prices decrease, in general, competitive conditions may impact how quickly we must reduce our prices to our customers and we could be forced to use higher-priced raw materials to complete orders for which the selling prices have decreased. Declining steel prices could also require us to write-down the value of our inventories to reflect current market pricing. Further, the number of suppliers has decreased in recent years

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due to industry consolidation and the financial difficulties of certain suppliers, and consolidation may continue. Accordingly, if delivery from a major steel supplier is disrupted, it may be more difficult to obtain an alternative supply than in the past.

Receivables:    We review our receivables on an ongoing basis to ensure that they are properly valued and collectible. This is accomplished through two contra-receivable accounts: returns and allowances and allowance for doubtful accounts. Returns and allowances, including limited warranties on certain products, are used to record estimates of returns or other allowances resulting from quality, delivery, discounts or other issues affecting the value of receivables. This account is estimated based on historical trends and current market conditions, with the offset to net sales. The returns and allowances account increased approximately $626,000 during fiscal 2015 to $6,393,000. The portion of the liability related to product warranties was immaterial at May 31, 2015 and May 31, 2014.

The allowance for doubtful accounts is used to record the estimated risk of loss related to the customers’ inability to pay. This allowance is maintained at a level that we consider appropriate based on factors that affect collectability, such as the financial health of our customers, historical trends of charge-offs and recoveries and current economic and market conditions. As we monitor our receivables, we identify customers that may have payment problems, and we adjust the allowance accordingly, with the offset to selling, general and administrative (“SG&A”) expense. Account balances are charged off against the allowance when recovery is considered remote. The allowance for doubtful accounts increased approximately $42,000 during fiscal 2015 to $3,085,000.

While we believe our allowances are adequate, changes in economic conditions, the financial health of customers and bankruptcy settlements could impact our future earnings. If the economic environment and market conditions deteriorate, particularly in the automotive and construction end markets where our exposure is greatest, additional reserves may be required.

Property and Depreciation:    Property, plant and equipment are carried at cost and depreciated using the straight-line method. Buildings and improvements are depreciated over 10 to 40 years and machinery and equipment over 3 to 20 years. Depreciation expense was $64,666,000, $62,344,000, and $56,002,000 during fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Accelerated depreciation methods are used for income tax purposes.

Goodwill and Other Long-Lived Assets:    We use the purchase method of accounting for all business combinations and recognize amortizable intangible assets separately from goodwill. The acquired assets and assumed liabilities in an acquisition are measured and recognized based on their estimated fair values at the date of acquisition, with goodwill representing the excess of the purchase price over the fair value of the identifiable net assets. A bargain purchase may occur, wherein the fair value of identifiable net assets exceeds the purchase price, and a gain is then recognized in the amount of that excess. Goodwill and intangible assets with indefinite lives are not amortized, but instead are tested for impairment annually, during the fourth quarter, or more frequently if events or changes in circumstances indicate that impairment may be present. Application of goodwill impairment testing involves judgment, including but not limited to, the identification of reporting units and estimation of the fair value of each reporting unit. A reporting unit is defined as an operating segment or one level below an operating segment. We test goodwill at the operating segment level as we have determined that the characteristics of the reporting units within each operating segment are similar and allow for their aggregation in accordance with the applicable accounting guidance.

The goodwill impairment test consists of comparing the fair value of each operating segment, determined using discounted cash flows, to each operating segment’s respective carrying value. If the estimated fair value of an operating segment exceeds its carrying value, there is no impairment. If the carrying amount of the operating segment exceeds its estimated fair value, goodwill impairment is indicated. The amount of the impairment is determined by comparing the fair value of the net assets of the operating

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segment, excluding goodwill, to its estimated fair value, with the difference representing the implied fair value of the goodwill. If the implied fair value of the goodwill is lower than its carrying value, the difference is recorded as an impairment charge in our consolidated statements of earnings. The impairment test for indefinite-lived intangible assets consists of a comparison of the fair value of the intangible asset to its carrying value. If the carrying value of the intangible asset exceeds its fair value, the difference is recorded as an impairment charge in our consolidated statements of earnings.

We review the carrying value of our long-lived assets, including intangible assets with finite useful lives, for impairment whenever events or changes in circumstances indicate that the carrying value of an asset or asset group may not be recoverable. Impairment testing involves a comparison of the sum of the undiscounted future cash flows of the asset or asset group to its respective carrying amount. If the sum of the undiscounted future cash flows exceeds the carrying amount, then no impairment exists. If the carrying amount exceeds the sum of the undiscounted future cash flows, then a second step is performed to determine the amount of impairment, if any, to be recognized. The loss recognized is equal to the amount that the carrying value of the asset or asset group exceeds fair value.

Our impairment testing for both goodwill and other long-lived assets, including intangible assets with finite useful lives, is largely based on cash flow models that require significant judgment and require assumptions about future volume trends, revenue and expense growth rates; and, in addition, external factors such as changes in economic trends and cost of capital. Significant changes in any of these assumptions could impact the outcomes of the tests performed. See “Note C – Goodwill and Other Long-Lived Assets” for additional details regarding these assets and related impairment testing.

Leases:    Certain lease agreements contain fluctuating or escalating payments and rent holiday periods. The related rent expense is recorded on a straight-line basis over the length of the lease term. Leasehold improvements made by the lessee, whether funded by the lessee or by landlord allowances or incentives, are recorded as leasehold improvement assets and will be amortized over the shorter of the economic life or the lease term. These incentives are also recorded as deferred rent and amortized as reductions in rent expense over the lease term.

Stock-Based Compensation:    At May 31, 2015, we had stock-based compensation plans for our employees as well as our non-employee directors as described more fully in “Note J – Stock-Based Compensation.” All share-based awards, including grants of stock options and restricted common shares, are recorded as expense in the consolidated statements of earnings based on their grant-date fair values.

Revenue Recognition:    We recognize revenue upon transfer of title and risk of loss, or in the case of toll processing revenue, upon delivery of the goods, provided evidence of an arrangement exists, pricing is fixed and determinable and the ability to collect is probable. We provide, through charges to net sales, for returns and allowances based on experience and current customer activities. We also provide, through charges to net sales, for customer rebates and sales discounts based on specific agreements and recent and anticipated levels of customer activity. In circumstances where the collection of payment is not probable at the time of shipment, we defer recognition of revenue until payment is collected.

Advertising Expense:    We expense advertising costs as incurred. Advertising expense was $11,153,000, $6,788,000, and $6,179,000 for fiscal 2015, fiscal 2014, and fiscal 2013, respectively.

Shipping and Handling Fees and Costs:    Shipping and handling fees billed to customers are included in net sales, and shipping and handling costs incurred are included in cost of goods sold.

Environmental Costs:    Environmental costs are capitalized if the costs extend the life of the property, increase its capacity, and/or mitigate or prevent contamination from future operations. Costs related to environmental contamination treatment and clean up are charged to expense.

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Statements of Cash Flows:    Supplemental cash flow information was as follows for the fiscal years ended May 31:

(in thousands)	2015		2014		2013
Interest paid, net of amount capitalized	$	36,190	$	24,199	$	22,614
Income taxes paid, net of refunds		67,825		81,997		64,260

We use the “cumulative earnings” approach for determining cash flow presentation of distributions from our unconsolidated joint ventures. Distributions received are included in our consolidated statements of cash flows as operating activities, unless the cumulative distributions exceed our portion of the cumulative equity in the net earnings of the joint venture, in which case the excess distributions are deemed to be returns of the investment and are classified as investing activities in our consolidated statements of cash flows.

Income Taxes:    We account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and the financial reporting basis of our assets and liabilities. In assessing the realizability of deferred tax assets, we consider whether it is more likely than not that all, or a portion, of the deferred tax assets will not be realized. We provide a valuation allowance for deferred income tax assets when it is more likely than not that a portion of such deferred income tax assets will not be realized.

Tax benefits from uncertain tax positions that are recognized in the consolidated financial statements are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.

We have reserves for taxes and associated interest and penalties that may become payable in future years as a result of audits by taxing authorities. It is our policy to record these in income tax expense. While we believe the positions taken on previously filed tax returns are appropriate, we have established the tax and interest reserves in recognition that various taxing authorities may challenge our positions. The tax reserves are analyzed periodically, and adjustments are made as events occur to warrant adjustment to the reserves, such as lapsing of applicable statutes of limitations, conclusion of tax audits, additional exposure based on current calculations, identification of new issues and release of administrative guidance or court decisions affecting a particular tax issue.

Self-Insurance Reserves:    We are largely self-insured with respect to workers’ compensation, general and automobile liability, property damage, employee medical claims and other potential losses. In order to reduce risk and better manage our overall loss exposure, we purchase stop-loss insurance that covers individual claims in excess of the deductible amounts. We maintain reserves for the estimated cost to settle open claims, which includes estimates of legal costs expected to be incurred, as well as an estimate of the cost of claims that have been incurred but not reported. These estimates are based on actuarial valuations that take into consideration the historical average claim volume, the average cost for settled claims, current trends in claim costs, changes in our business and workforce, general economic factors and other assumptions believed to be reasonable under the circumstances. The estimated reserves for these liabilities could be affected if future occurrences and claims differ from assumptions used and historical trends.

Recently Issued Accounting Standards:    In May 2014, amended accounting guidance was issued that replaces most existing revenue recognition guidance under U.S. GAAP. The amended guidance requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The amended guidance is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is not permitted. We are in the process of evaluating the effect this guidance will have on our consolidated financial

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position and results of operations. The amended guidance permits the use of either the retrospective or cumulative effect transition method. We have not selected a transition method nor have we determined the effect of the amended guidance on our ongoing financial reporting.

Note B – Investments in Unconsolidated Affiliates

At May 31, 2015, equity investments and the percentage interests owned consisted of the following (in alphabetic order): ArtiFlex Manufacturing, LLC (“ArtiFlex”) (50%), Clarkwestern Dietrich Building Systems LLC (“ClarkDietrich”) (25%), Samuel Steel Pickling Company (31.25%), Serviacero Planos, S. de R. L. de C.V. (“Serviacero”) (50%), Worthington Armstrong Venture (“WAVE”) (50%), Worthington Specialty Processing (“WSP”) (51%), and Zhejiang Nisshin Worthington Precision Specialty Steel Co., Ltd. (10%). WSP is considered to be jointly controlled and not consolidated due to substantive participating rights of the minority partner.

On October 18, 2013, we finalized an agreement with Nisshin Steel Co., Ltd. and Marubeni-Itochu Steel Inc. to form Zhejiang Nisshin Worthington Precision Specialty Steel Co., Ltd. We own a 10% interest in the joint venture with the option to increase our ownership interest to 34%. To date, we have contributed $8,800,000 of our total commitment of $12,385,000. The joint venture is in the process of constructing a plant in Zhejiang Province in the People’s Republic of China that will produce cold-rolled strip steel primarily for the automotive industry.

During the second quarter of fiscal 2014, we dissolved our wind tower joint venture, Gestamp Worthington Wind Steel, LLC, due to the volatile political environment in the United States, particularly in regards to the Federal Production Tax Credit. This event did not have a material impact on our financial position or results of operations.

On July 31, 2013, we acquired an additional 10% interest in our laser welded blank joint venture, TWB, increasing our ownership to a 55% controlling interest. Since that date, TWB’s results have been consolidated within Steel Processing versus reported in equity in net income of unconsolidated affiliates. For additional information, refer to “Note O – Acquisitions.”

We received distributions from unconsolidated affiliates totaling $78,297,000, $85,346,000, and $84,539,000 in fiscal 2015, fiscal 2014 and fiscal 2013, respectively. We have received cumulative distributions from WAVE in excess of our investment balance, which resulted in an amount recorded within other liabilities on our consolidated balance sheets of $61,585,000 and $59,287,000 at May 31, 2015 and 2014, respectively. In accordance with the applicable accounting guidance, we reclassified the negative balance to the liability section of our consolidated balance sheet. We will continue to record our equity in the net income of WAVE as a debit to the investment account, and if it becomes positive, it will again be shown as an asset on our consolidated balance sheet. If it becomes probable that any excess distribution may not be returned (upon joint venture liquidation or otherwise), we will recognize any balance classified as a liability as income immediately.

We use the “cumulative earnings” approach for determining cash flow presentation of distributions from our unconsolidated joint ventures. Distributions received are included in our consolidated statements of cash flows as operating activities, unless the cumulative distributions exceed our portion of the cumulative equity in the net earnings of the joint venture, in which case the excess distributions are deemed to be returns of the investment and are classified as investing activities in our consolidated statements of cash flows. During fiscal 2015, we received excess distributions from ClarkDietrich of $570,000.

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The following table presents combined information of the financial position for the affiliated companies accounted for using the equity method as of May 31, 2015 and 2014:

(in thousands)	2015		2014
Cash	$	101,011	$	52,997
Receivable from partner (1)		11,092		12,717
Other current assets		491,507		454,417
Noncurrent assets		318,939		294,001
Total assets	$	922,549	$	814,132
Current liabilities	$	184,028	$	128,595
Short-term borrowings		-		40,992
Current maturities of long-term debt		4,489		4,510
Long-term debt		272,861		268,350
Other noncurrent liabilities		20,471		20,217
Equity		440,700		351,468
Total liabilities and equity	$	922,549	$	814,132

(1) Represents cash owed from a third-party joint venture partner as a result of centralized cash management.

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The following table presents financial results of our three largest affiliated companies for fiscal 2015, fiscal 2014 and fiscal 2013. All other affiliated companies are combined and presented in the Other category.

(in thousands)	2015		2014		2013
Net sales
WAVE	$	382,451	$	382,821	$	370,702
ClarkDietrich		576,171		549,267		547,971
TWB		-		54,003		344,065
Other		551,558		506,711		490,996
Total net sales	$	1,510,180	$	1,492,802	$	1,753,734
Gross margin
WAVE	$	181,102	$	177,935	$	167,924
ClarkDietrich		65,530		73,803		75,580
TWB		-		6,109		41,116
Other		55,374		54,773		48,229
Total gross margin	$	302,006	$	312,620	$	332,849
Operating income
WAVE	$	147,603	$	144,167	$	137,202
ClarkDietrich		10,436		27,918		35,024
TWB		-		4,273		28,241
Other		35,492		37,574		30,457
Total operating income	$	193,531	$	213,932	$	230,924
Depreciation and amortization
WAVE	$	4,150	$	4,916	$	3,919
ClarkDietrich		16,638		16,253		18,173
TWB		-		880		5,123
Other		14,874		14,909		13,497
Total depreciation and amortization	$	35,662	$	36,958	$	40,712
Interest expense
WAVE	$	6,412	$	6,464	$	6,280
ClarkDietrich		138		103		3
TWB		-		-		-
Other		2,145		2,655		2,611
Total interest expense	$	8,695	$	9,222	$	8,894
Income tax expense
WAVE	$	2,539	$	3,606	$	2,451
ClarkDietrich		-		-		-
TWB		-		478		1,218
Other		7,949		5,770		3,187
Total income tax expense	$	10,488	$	9,854	$	6,856
Net earnings
WAVE	$	138,670	$	134,019	$	128,614
ClarkDietrich		11,799		27,837		35,005
TWB		-		4,023		27,931
Other		27,633		30,252		24,452
Total net earnings	$	178,102	$	196,131	$	216,002

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The financial results of TWB have been included in the amounts presented in the tables above through July 31, 2013. On July 31, 2013, we completed the acquisition of an additional 10% interest in TWB. As a result, TWB’s results have been consolidated within Steel Processing since that date with the minority member’s portion of earnings eliminated within earnings attributable to noncontrolling interest.

At May 31, 2015, $17,142,000 of our consolidated retained earnings represented undistributed earnings, net of tax, of our unconsolidated affiliates.

Note C – Goodwill and Other Long-Lived Assets

Fiscal 2015:    During the fourth quarter of fiscal 2015, we determined that indicators of impairment were present with regard to intangible assets related to our compressed natural gas (“CNG”) fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value, resulting in an impairment charge of $2,344,000.

During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs reporting unit was necessary. This conclusion was based on certain indicators of impairment, including the decision to close the Company’s Engineered Cabs’ facility in Florence, South Carolina, and significant downward revisions to forecasted cash flows as a result of continued weakness in the mining and agricultural end markets and higher than expected manufacturing costs. The Company expects to incur approximately $2,400,000 of severance expense associated with the facility closure. This amount will be recognized as restructuring expense ratably over the future service period.

Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs reporting unit for recoverability. Recoverability was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sums of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values, resulting in impairment charges of $22,356,000 for the customer relationship intangible asset and $14,311,000 for the property, plant and equipment of the Florence asset group during the third quarter of fiscal 2015.

As noted above, the Company determined that indicators of potential impairment existed to require an interim goodwill analysis of the Engineered Cabs reporting unit. A comparison of the fair value of the Engineered Cabs reporting unit, determined using discounted cash flows, to its carrying value indicated that a step 2 calculation to quantify the potential impairment was required. After a subsequent review of the fair value of the net assets of Engineered Cabs, it was determined that the implied fair value of goodwill was $0 and, as a result, the entire $44,933,000 goodwill balance was written off during the third quarter of fiscal 2015. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate.

During the second quarter of fiscal 2015, management committed to a plan to sell the assets of the Advanced Component Technologies, Inc. (“ACT”) business within Engineered Cabs. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell, resulting in an impairment charge of $2,389,000. During the third quarter of fiscal 2015, the Company completed the sale of this business and recognized a gain of $332,000.

During the second quarter of fiscal 2015, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow

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projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value, resulting in an impairment charge of $3,221,000. On May 1, 2015, the Company completed the sale of this business. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note D – Restructuring and Other Expense (Income)” of this Annual Report on Form 10-K.

During the second quarter of fiscal 2015, we determined that indicators of impairment were present at the Company’s military construction business. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value, resulting in an impairment charge of $1,179,000, which represents the remaining book value of the asset group.

During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. As all of the criteria for classification as assets held for sale were met, the net assets of the business were presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell as of May 31, 2014. As a result of changes in facts and circumstances related to the planned sale of Worthington Nitin Cylinders during the second quarter of fiscal 2015, the Company reassessed the fair value of the business and determined that the remaining book value should be written off resulting in an impairment charge of $6,346,000.

During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s stainless steel business, Precision Specialty Metals, Inc. (“PSM”). As all of the criteria for classification as assets held for sale were met, the net assets of the business have been presented separately as assets held for sale in our consolidated balance sheets as of May 31, 2015 and 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell as of May 31, 2014. As a result of changes in facts and circumstances related to the planned sale, the Company reassessed the fair value of the business resulting in additional impairment charges totaling $3,050,000 during fiscal 2015.

Fiscal 2014:    During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. As all of the criteria for classification as assets held for sale were met, the net assets of this business are presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $5,925,000, was lower than its net book value, an impairment charge of $18,959,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest of $7,583,000 was recorded within net earnings attributable to noncontrolling interest in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, management committed to a plan to sell PSM. As all of the criteria for classification as assets held for sale were met, the net assets of this business are presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $19,115,000, was lower than its net book value, an impairment charge of $7,141,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

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During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

During the second quarter of fiscal 2014, we committed to a re-branding initiative. Under the re-branding initiative, we re-branded substantially all of our businesses under the Worthington Industries name. In connection with the change in branding strategy, we discontinued the use of all non-Worthington trade names except those related to consumer products such as BernzOmatic^® and Balloon Time^® and those related to our joint ventures. As a result, we determined an impairment indicator was present for the trade names that have been or will be discontinued. As no future cash flows will be attributed to the impacted trade names, the entire book value was written off, resulting in an impairment charge of $30,734,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

Fiscal 2013:    During the fourth quarter of fiscal 2013, we determined that indicators of impairment were present at Worthington Nitin Cylinders due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $6,856,000, resulting in an impairment charge of $4,968,000 within impairment of long-lived assets in our fiscal 2013 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest, or $1,987,000, was recorded within net earnings attributable to noncontrolling interest in our fiscal 2013 consolidated statement of earnings.

During the first quarter of fiscal 2013, management committed to a plan to sell the Company’s pressure cylinders operations in Czech Republic. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group was lower than its net book value, an impairment charge of $1,570,000 was recognized. On October 31, 2012, we completed the sale of this asset group to an unrelated third party resulting in a gain of approximately $50,000. The combined impact of these items of $1,520,000 is presented within impairment of long-lived assets in our fiscal 2013 consolidated statement of earnings.

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Goodwill

The following table summarizes the changes in the carrying amount of goodwill during fiscal 2015 and fiscal 2014 by reportable business segment:

	Steel Processing		Pressure Cylinders			Engineered Cabs			Other			Total
(in thousands)
Balance at May 31, 2013
Goodwill	$	-	$	163,274		$	44,933		$	127,245		$	335,452
Accumulated impairment losses		-		-			-			(121,594	)		(121,594	)
		-		163,274			44,933			5,651			213,858
Acquisitions and purchase accounting adjustments		-		36,033			-			-			36,033
Translation adjustments		-		1,202			-			-			1,202
Balance at May 31, 2014
Goodwill		-		200,509			44,933			127,245			372,687
Accumulated impairment losses		-		-			-			(121,594	)		(121,594	)
		-		200,509			44,933			5,651			251,093
Acquisitions and purchase accounting adjustments		6,587		41,421			-			-			48,008
Divestitures		-		(1,891	)		-			-			(1,891	)
Translation adjustments		-		(13,278	)		-			-			(13,278	)
Impairment losses		-		-			(44,933	)		-			(44,933	)
		6,587		26,252			(44,933	)		-			(12,094	)
Balance at May 31, 2015
Goodwill		6,587		226,761			44,933			127,245			405,526
Accumulated impairment losses		-		-			(44,933	)		(121,594	)		(166,527	)
	$	6,587	$	226,761		$	-		$	5,651		$	238,999

For additional information regarding the Company’s acquisitions, refer to “Note O – Acquisitions.”

Other Intangible Assets

Intangible assets with definite lives are amortized on a straight-line basis over their estimated useful lives, which range from one to 20 years. The following table summarizes other intangible assets by class as of May 31, 2015 and 2014:

	2015				2014
(in thousands)	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	12,601	$	-	$	12,601	$	-
Total indefinite-lived intangible assets		12,601		-		12,601		-
Definite-lived intangible assets:
Customer relationships	$	119,871	$	34,421	$	143,585	$	28,257
Non-compete agreements		14,221		6,897		10,733		4,263
Technology / know-how		15,633		2,350		12,068		1,273
Other		4,338		3,879		2,512		1,713
Total definite-lived intangible assets		154,063		47,547		168,898		35,506
Total intangible assets	$	166,664	$	47,547	$	181,499	$	35,506

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Amortization expense of $20,422,000, $17,386,000, and $10,467,000 was recognized during fiscal 2015, fiscal 2014 and fiscal 2013, respectively.

Amortization expense for each of the next five fiscal years is estimated to be:

(in thousands)
2016	$	17,163
2017	$	16,275
2018	$	15,850
2019	$	12,731
2020	$	10,345

Note D – Restructuring and Other Expense (Income)

We consider restructuring activities to be programs whereby we fundamentally change our operations such as closing and consolidating manufacturing facilities, moving manufacturing of a product to another location, and employee severance (including rationalizing headcount or other significant changes in personnel).

A progression of the liabilities associated with our restructuring activities, combined with a reconciliation to the restructuring and other expense (income) financial statement caption in our consolidated statement of earnings for fiscal 2015, is summarized below:

(in thousands)	Beginning Balance		Expense			Payments			Adjustments		Ending Balance
Early retirement and severance	$	6,495	$	3,323		$	(7,694	)	$	46	$	2,170
Facility exit and other costs		534		1,266			(1,568	)		139		371
	$	7,029		4,589		$	(9,262	)	$	185	$	2,541
Net loss on sale of assets				2,338
Less: joint venture transactions				(413	)
Restructuring and other expense			$	6,514

During fiscal 2015, the following actions were taken related to the Company’s restructuring activities:

• In connection with the wind-down of our former Metal Framing operating segment, we recognized $413,000 of facility exit and other costs. These costs were recognized within the joint venture transactions financial statement caption in our consolidated statement of earnings to correspond with amounts previously recognized in connection with the formation of ClarkDietrich and the subsequent wind-down of our former Metal Framing operating segment.

• The Company completed the sale of its aluminum high-pressure cylinder business in New Albany, Mississippi, for cash proceeds of $8,415,000. A loss of $2,670,000 was recognized as a result of the transaction, which included $1,891,000 of allocated goodwill. The Company also recognized an accrual of $664,000 for expected severance costs associated with the transaction.

• The Company completed the sale of the ACT business within Engineered Cabs for cash proceeds of $2,622,000, resulting in a gain of $332,000.

• On March 24, 2015, the Company announced a workforce reduction in several oil and gas equipment locations due to slowing demand. The Company recognized an accrual of $2,221,000 for expected severance costs covering those affected by the workforce reductions.

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• In connection with the consolidation of the BernzOmatic hand torch manufacturing operation in Medina, New York into the existing Pressure Cylinders’ facility in Chilton, Wisconsin, we incurred $853,000 of facility exit costs.

• In connection with the wind down of the Military Construction business, the Company recognized an accrual of $366,000 for expected severance costs

The total liability as of May 31, 2015 is expected to be paid in the next twelve months.

A progression of the liabilities associated with our restructuring activities, combined with a reconciliation to the restructuring and other expense (income) financial statement caption in our consolidated statement of earnings for fiscal 2014, is summarized as follows:

(in thousands)	Beginning Balance		Expense			Payments			Adjustments			Ending Balance
Early retirement and severance	$	5,029	$	6,236		$	(4,703	)	$	(67	)	$	6,495
Facility exit and other costs		1,200		2,477			(3,021	)		(122	)		534
	$	6,229		8,713		$	(7,724	)	$	(189	)	$	7,029
Net gain on sale of assets				(10,589	)
Less: joint venture transactions				(1,036	)
Restructuring and other income			$	(2,912	)

During fiscal 2014, the following actions were taken related to the Company’s restructuring activities:

• In connection with the wind-down of our former Metal Framing operating segment, we recognized $924,000 of facility exit and other costs and a loss of $112,000 related to the sale of certain retained assets. These costs were recognized within the joint venture transactions financial statement caption in our consolidated statement of earnings to correspond with amounts previously recognized in connection with the formation of ClarkDietrich and the subsequent wind-down of our former Metal Framing operating segment.

• In connection with the closure of our commercial stairs business, we incurred facility exit charges of $652,000.

• In connection with the consolidation of the BernzOmatic hand torch manufacturing operation in Medina, New York into the existing Pressure Cylinders’ facility in Chilton, Wisconsin, we recognized an additional accrual of $578,000 for expected employee severance costs and $377,000 of facility exit costs. During the fourth quarter of fiscal 2013, we had recognized a $2,488,000 accrual for expected severance costs related to this matter.

• On June 30, 2013, the Company completed the sale of Integrated Terminals, its warehouse facility in Detroit, Michigan, for cash proceeds of $7,457,000, resulting in a gain of $4,762,000.

• On November 12, 2013, the Company entered into an agreement to sell the operating assets related to its steel high pressure and acetylene cylinders business in North America, resulting in a gain of $5,939,000. In connection with this transaction, the Company recognized a $3,714,000 accrual for expected severance costs and incurred facility exit charges of $524,000.

• On December 10, 2013, the Company announced the closure of its Baltimore steel facility, which ceased operations in May 2014. The Company shipped the remaining inventory at the Baltimore facility to other Worthington locations and completely exited the facility before the end of the first quarter of fiscal 2015. In connection with this matter, the Company recognized an accrual of $1,380,000 for expected severance costs.

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• During May 2014, the Company completed the closure of its Mid-Rise construction business. In connection with this matter, the Company recognized an accrual of $564,000 for expected severance costs.

Note E – Contingent Liabilities and Commitments

Legal Proceedings

We are defendants in certain legal actions. In the opinion of management, the outcome of these actions, which is not clearly determinable at the present time, would not significantly affect our consolidated financial position or future results of operations. We also believe that environmental issues will not have a material effect on our capital expenditures, consolidated financial position or future results of operations.

On August 5, 2013, we tendered to our excess loss carrier, who accepted the tender, a wrongful death claim against the Company involving a MAPP gas cylinder. Pursuant to the tender and its acceptance, our overall exposure related to this matter was limited to $2,000,000. As a result, a pre-tax charge of $2,000,000 was recorded within SG&A expense during fiscal 2014.

Pressure Cylinders Voluntary Product Recall

On January 10, 2012, we announced a voluntary recall of our MAP-PRO^®, propylene and MAAP^® cylinders and related hand torch kits. The recall was precautionary in nature and involved a valve supplied by a third party that may leak when a torch or hose is disconnected from the cylinder. We incurred $9,671,000 of expenses related to the recall during fiscal 2012. Due to higher product returns than initially anticipated, we incurred additional expenses of $2,571,000 related to the recall during fiscal 2013. During the fourth quarter of fiscal 2014, we settled a legal dispute with the third party supplier, which resulted in a net gain of $3,951,000 within SG&A expense.

Royalty Agreements

In connection with the acquisition of the propane fuel cylinders business of The Coleman Company, Inc. (“Coleman Cylinders”), we executed a trademark license agreement whereby we are required to make minimum annual royalty payments of $2,000,000 in exchange for the exclusive right to use certain Coleman trademarks within the United States and Canada in connection with our operation of the acquired business.

Insurance Recoveries

On August 19, 2013, a fire occurred at our Pressure Cylinders facility in Kienberg, Austria, in the building that houses the massing process in the production of acetylene cylinders. The other portions of the Austrian facility were not damaged; however, the massing process building sustained extensive damage and was rendered inoperable. Additionally, we have incurred incremental business interruption costs. The Company has business interruption and property damage insurance and, as a result, the fire did not have a material adverse impact on the Company’s consolidated financial results.

During fiscal 2015, the Company received proceeds of $1,248,000 representing advance payments for the replacement value of damaged equipment. These proceeds were in excess of the $243,000 remaining book value of the assets, resulting in a gain of $1,005,000 within miscellaneous income.

Total proceeds received related to insurance claims since the date of loss have been as follows:

(in thousands)
Property and equipment	$	6,892
Business interruption		5,521
Other expenses		1,001
Total insurance proceeds	$	13,414

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Proceeds for business interruption related to the loss of profits since the date of the fire and have been recorded as a reduction of manufacturing expense, including $2,653,000 during fiscal 2015. Proceeds for other expenses represent reimbursement for incremental expenses related to the fire and were recorded as an offset to manufacturing expense, including $256,000 during fiscal 2015. This claim was settled during the third quarter of fiscal 2015.

Note F – Guarantees

We do not have guarantees that we believe are reasonably likely to have a material current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources. However, as of May 31, 2015, we were party to an operating lease for an aircraft in which we have guaranteed a residual value at the termination of the lease. The maximum obligation under the terms of this guarantee was approximately $11,736,000 at May 31, 2015. We have also guaranteed the repayment of $1,667,000 outstanding under a term loan held by one of our unconsolidated affiliates, ArtiFlex. Based on current facts and circumstances, we have estimated the likelihood of payment pursuant to these guarantees, and determined that the fair value of our obligation under each guarantee based on those likely outcomes is not material.

Note G – Debt and Receivables Securitization

The following table summarizes our long-term debt and short-term borrowings outstanding at May 31, 2015 and 2014:

(in thousands)	2015		2014
Short-term borrowings	$	90,550	$	10,362
4.55% senior notes due April 15, 2026		249,524		249,472
4.60% senior notes due August 10, 2024		150,000		150,000
6.50% senior notes due April 15, 2020		149,920		149,912
Term loans		30,429		4,235
Floating rate senior notes due December 17, 2014		-		100,000
Industrial revenue bonds due April 2019		-		2,024
Other		320		320
Total debt		670,743		666,325
Less: current maturities and short-term borrowings		91,391		111,535
Total long-term debt	$	579,352	$	554,790

We maintain a $100,000,000 revolving trade accounts receivable securitization facility (the “AR Facility”) that was available throughout fiscal 2015 and fiscal 2014. During the third quarter of fiscal 2015, we extended the maturity of the AR Facility to January 2018. Pursuant to the terms of the AR Facility, certain of our subsidiaries sell their accounts receivable without recourse, on a revolving basis, to Worthington Receivables Corporation (“WRC”), a wholly-owned, consolidated, bankruptcy-remote subsidiary. In turn, WRC may sell without recourse, on a revolving basis, up to $100,000,000 of undivided ownership interests in this pool of accounts receivable to a multi-seller, asset-backed commercial paper conduit (the “Conduit”). Purchases by the Conduit are financed with the sale of A1/P1 commercial paper. We retain an undivided interest in this pool and are subject to risk of loss based on the collectability of the receivables from this retained interest. Because the amount eligible to be sold excludes receivables more than 90 days past due, receivables offset by an allowance for doubtful accounts due to bankruptcy or other cause, concentrations over certain limits with specific customers and certain reserve amounts, we believe additional risk of loss is minimal. The book value of the retained portion of the pool of accounts receivable approximates fair value. As of May 31, 2015, the pool of eligible accounts receivable exceeded the $100,000,000 limit, and $60,000,000 of undivided interests in this pool of accounts receivable had been sold. Facility fees of $723,000, $652,000, and $983,000 were recognized within interest expense during fiscal 2015, fiscal 2014 and fiscal 2013, respectively.

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We maintain a multi-year revolving credit facility (the “Credit Facility”) with a group of lenders. On April 23, 2015, the Company amended the terms of the Credit Facility, increasing commitments under the facility by $75,000,000, to a total of $500,000,000, and extending the maturity by three years to April 2020. Borrowings under the Credit Facility have maturities of less than one year and given that our intention has been to repay them within a year, they have been classified as short-term borrowings within current liabilities on our consolidated balance sheets. However, we can also extend the term of amounts borrowed by renewing these borrowings for the term of the Credit Facility. We have the option to borrow at rates equal to an applicable margin over the LIBOR, Prime or Fed Funds rates. The applicable margin is determined by our credit rating and was 1.39% at May 31, 2015. Borrowings outstanding under the Credit Facility totaled $24,915,000 at May 31, 2015.

The remaining balance of short-term borrowings at May 31, 2015, consisted of $5,635,000 outstanding under a $9,500,000 credit facility maintained by our consolidated affiliate in India, Worthington Nitin Cylinders, that matured in November 2014 and bears interest at a variable rate. The applicable variable rate was 15.25% at May 31, 2015. The borrowings outstanding under the Nitin credit facility are currently in default; however, the lender has not called the note. The Company settled its portion of the obligation in June 2015.

On April 15, 2014, we issued $250,000,000 aggregate principal amount of unsecured senior notes due on April 15, 2026 (the “2026 Notes”). The 2026 Notes bear interest at a rate of 4.55%. The 2026 Notes were sold to the public at 99.789% of the principal amount thereof, to yield 4.573% to maturity. We used a portion of the net proceeds from the offering to repay borrowings then outstanding under our revolving credit facilities. Approximately $3,081,000, $2,256,000 and $528,000 of the aggregate proceeds were allocated to the settlement of a derivative contract entered into in anticipation of the issuance of the 2026 Notes, debt issuance costs, and the debt discount, respectively. The debt discount, debt issuance costs and the loss on the derivative contract were recorded on the consolidated balance sheet as of May 31, 2015, within long-term debt as a contra-liability, short- and long-term other assets and AOCI, respectively. Each will be recognized, through interest expense, in our consolidated statements of earnings over the term of the 2026 Notes. The unamortized portion of the debt issuance costs and debt discount was $1,881,000 and $476,000, respectively, at May 31, 2015.

On August 10, 2012, we issued $150,000,000 aggregate principal amount of unsecured senior notes due August 10, 2024 (the “2024 Notes”). The 2024 Notes bear interest at a rate of 4.60%. The net proceeds from this issuance were used to repay a portion of the outstanding borrowings under our multi-year revolving credit facility and amounts outstanding under our revolving trade accounts receivable securitization facility.

On April 13, 2010, we issued $150,000,000 aggregate principal amount of unsecured senior notes due on April 15, 2020 (the “2020 Notes”). The 2020 Notes bear interest at a rate of 6.50%. The 2020 Notes were sold to the public at 99.890% of the principal amount thereof, to yield 6.515% to maturity. We used the net proceeds from the offering to repay a portion of the then outstanding borrowings under our multi-year revolving credit facility and amounts then outstanding under our revolving trade accounts receivable securitization facility. Approximately $165,000, $1,535,000 and $1,358,000 of the aggregate proceeds were allocated to the debt discount, debt issuance costs, and the settlement of a derivative contract entered into in anticipation of the issuance of the 2020 Notes. The debt discount, debt issuance costs and the loss on the derivative contract were recorded on the consolidated balance sheets within long-term debt as a contra-liability, short- and long-term other assets and AOCI, respectively. Each will continue to be recognized, through interest expense, in our consolidated statements of earnings over the remaining term of the 2020 Notes. The unamortized portion of the debt issuance costs and debt discount was $582,000 and $80,000, respectively, at May 31, 2015.

On September 26, 2014, our consolidated joint venture in Turkey, Worthington Aritas, executed a $28,028,000 five-year term loan denominated in Euros. As of May 31, 2015, we had borrowed $27,013,000 against the facility. The facility bears interest at a variable rate based on EURIBOR. The applicable variable rate

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was 1.519% at May 31, 2015. On October 15, 2014, we entered into an interest rate swap to fix the interest rate on $16,809,000 of borrowings under this facility at 2.015% starting on December 26, 2014 through September 26, 2019. Borrowings against the facility are being used for the construction of a new cryogenics manufacturing facility in Turkey.

On April 27, 2012, we executed a $5,880,000 seven-year term loan that matures on May 1, 2019 and requires monthly payments of $76,350. The loan bears interest at a rate of 2.49% and is secured by an aircraft that was purchased with its proceeds. Borrowing outstanding totaled $3,416,000 as of May 31, 2015.

Maturities on long-term debt and short-term borrowings in the next five fiscal years, and the remaining years thereafter, are as follows:

(in thousands)
2016		91,391
2017		862
2018		6,286
2019		6,232
2020		166,207
Thereafter		400,000
Total	$	670,978

Note H – Comprehensive Income (Loss)

Other Comprehensive Income:    The following table summarizes the tax effects of each component of other comprehensive income (loss) for the fiscal years ended May 31:

	2015								2014									2013
(in thousands)	Before- Tax			Tax		Net-of- Tax			Before- Tax			Tax			Net-of- Tax			Before- Tax		Tax			Net-of- Tax
Foreign currency translation	$	(34,229	)		-	$	(34,229	)	$	7,618			-		$	7,618		$	5,393		-		$	5,393
Pension liability adjustment		(5,652	)		1,914		(3,738	)		(1,555	)		511			(1,044	)		3,688		(1,415	)		2,273
Cash flow hedges		(18,605	)		6,952		(11,653	)		3,548			(1,039	)		2,509			1,461		(763	)		698
Other comprehensive income (loss)	$	(58,486	)	$	8,866	$	(49,620	)	$	9,611		$	(528	)	$	9,083		$	10,542	$	(2,178	)	$	8,364

Accumulated Other Comprehensive Loss:    The components of the changes in accumulated other comprehensive loss for the fiscal years ended May 31, 2015 were as follows:

(in thousands)	Foreign Currency Translation			Pension Liability Adjustment			Cash Flow Hedges			Accumulated Other Comprehensive Loss
Balance as of May 31, 2014	$	11,015		$	(11,265	)	$	(3,331	)	$	(3,581	)
Other comprehensive loss before reclassifications		(31,732	)		(5,979	)		(28,652	)		(66,363	)
Reclassification adjustments to income (a)		-			327			10,047			10,374
Income taxes		-			1,914			6,952			8,866
Balance as of May 31, 2015	$	(20,717	)	$	(15,003	)	$	(14,984	)	$	(50,704	)

(a) The statement of earnings classification of amounts reclassified to income for cash flow hedges is disclosed in “Note P – Derivative Instruments and Hedging Activities.”

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The estimated net amount of the existing losses in AOCI at May 31, 2015 expected to be reclassified into net earnings within the succeeding twelve months is $12,619,000 (net of tax of $7,518,000). This amount was computed using the fair value of the cash flow hedges at May 31, 2015 and will change before actual reclassification from AOCI to net earnings during the fiscal year ending May 31, 2016.

Note I – Equity

Preferred Shares:    The Worthington Industries, Inc. Amended Articles of Incorporation authorize two classes of preferred shares and their relative voting rights. The Board of Directors of Worthington Industries, Inc. is empowered to determine the issue prices, dividend rates, amounts payable upon liquidation and other terms of the preferred shares when issued. No preferred shares are issued or outstanding.

Common Shares:    On June 29, 2011, the Board of Worthington Industries, Inc. authorized the repurchase of up to 10,000,000 of our outstanding common shares of which none remained available for repurchase at May 31, 2015. During fiscal 2015, 1,722,332 common shares were repurchased under this authorization.

On June 25, 2014, the Board of Worthington Industries, Inc. authorized the repurchase of up to an additional 10,000,000 of our outstanding common shares. During fiscal 2015, an aggregate of 2,453,855 common shares were repurchased under this authorization, leaving 7,546,145 shares available for repurchase as of May 31, 2015.

During fiscal 2015 and fiscal 2014, we paid $127,360,000 and $128,218,000 to repurchase 4,176,187 and 3,380,500 of our common shares, respectively, under these authorizations.

The common shares available for repurchase under these authorizations may be purchased from time to time, with consideration given to the market price of the common shares, the nature of other investment opportunities, cash flows from operations, general economic conditions and other relevant considerations. Repurchases may be made on the open market or through privately negotiated transactions.

On October 1, 2014, the Company amended its non-qualified deferred compensation plan for employees to require that any portion of a participant’s current account credited to the theoretical common share option, which reflects the fair value of the Company’s common shares with dividends reinvested, and any new contributions credited to the theoretical common share option remain credited to the theoretical common share option until distributed. For amounts credited to the theoretical common share option, payouts are required to be made in the form of whole common shares of the Company and cash in lieu of fractional shares. As a result, we account for the deferred compensation obligation credited to the theoretical common share option within equity, which totaled $14,560,000 for fiscal 2015. Prior to October 1, 2014, participant accounts credited to the theoretical common share option were settled in cash and classified as a liability in the Company’s consolidated balance sheet.

Note J – Stock-Based Compensation

Under our employee and non-employee director stock-based compensation plans (the “Plans”), we may grant incentive or non-qualified stock options, restricted common shares and performance shares to employees and non-qualified stock options and restricted common shares to non-employee directors. We classify share-based compensation expense within SG&A expense to correspond with the same financial statement caption as the majority of the cash compensation paid to employees. A total of 5,039,014 of our common shares have been authorized and are available for issuance in connection with the stock-based compensation plans in place at May 31, 2015.

We recognized pre-tax stock-based compensation expense of $17,916,000 ($11,500,000 after-tax), $22,017,000 ($13,778,000 after-tax), and $13,270,000 ($8,339,000 after-tax) under the Plans during fiscal 2015, fiscal 2014 and fiscal 2013, respectively. At May 31, 2015, the total unrecognized compensation cost related to non-vested awards was $16,367,000, which will be expensed over the next three fiscal years.

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Non-Qualified Stock Options

Stock options may be granted to purchase common shares at not less than 100% of fair market value on the date of the grant. All outstanding stock options are non-qualified stock options. The exercise price of all stock options granted has been set at 100% of the fair market value of the underlying common shares on the date of grant. Generally, stock options granted to employees vest and become exercisable at the rate of (i) 20% per year for options issued before June 30, 2011, and (ii) 33% per year for options issued on or after June 30, 2011, in each case beginning one year from the date of grant, and expire ten years after the date of grant. Non-qualified stock options granted to non-employee directors vest and become exercisable on the earlier of (a) the first anniversary of the date of grant or (b) the date on which the next annual meeting of shareholders is held following the date of grant for any stock option granted as of the date of an annual meeting of shareholders of Worthington Industries, Inc. Stock options can be exercised through net-settlement, at the election of the option holder.

U.S. GAAP requires that all share-based awards be recorded as expense in the statement of earnings based on their grant-date fair value. We calculate the fair value of our non-qualified stock options using the Black-Scholes option pricing model and certain assumptions. The computation of fair values for all stock options incorporates the following assumptions: expected volatility (based on the historical volatility of our common shares); risk-free interest rate (based on the United States Treasury strip rate for the expected term of the stock options); expected term (based on historical exercise experience); and dividend yield (based on annualized current dividends and an average quoted price of our common shares over the preceding annual period).

The table below sets forth the non-qualified stock options granted during each of the last three fiscal years. For each grant, the exercise price was equal to the closing market price of the underlying common shares at each respective grant date. The fair values of these stock options were based on the Black-Scholes option pricing model, calculated at the respective grant dates. The calculated pre-tax stock-based compensation expense for these stock options, which is after an estimate of forfeitures, will be recognized on a straight-line basis over the respective vesting periods of the stock options.

(in thousands, except per share amounts)	2015		2014		2013
Granted		97		130		1,034
Weighted average exercise price, per share	$	42.95	$	32.21	$	20.83
Weighted average grant date fair value, per share	$	17.96	$	12.92	$	7.71
Pre-tax stock-based compensation	$	1,553	$	1,539	$	7,165

The weighted average fair value of stock options granted in fiscal 2015, fiscal 2014 and fiscal 2013 was based on the Black-Scholes option pricing model with the following weighted average assumptions:

	2015			2014			2013
Assumptions used:
Dividend yield		1.88	%		2.28	%		2.95	%
Expected volatility		50.92	%		52.23	%		52.88	%
Risk-free interest rate		1.88	%		1.69	%		0.91	%
Expected life (years)		6.0			6.0			6.0

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The following tables summarize our stock option activity for the years ended May 31:

	2015					2014					2013
(in thousands, except per share)	Stock Options			Weighted Average Exercise Price		Stock Options			Weighted Average Exercise Price		Stock Options			Weighted Average Exercise Price
Outstanding, beginning of year		4,752		$	17.58		5,517		$	17.19		7,511			16.65
Granted		97			42.95		130			32.21		1,034			20.83
Exercised		(758	)		17.24		(828	)		17.39		(2,858	)		17.18
Forfeited		(47	)		17.00		(67	)		16.13		(170	)		15.86
Outstanding, end of year		4,044			18.25		4,752			17.58		5,517			17.19
Exercisable at end of year		3,276			17.63		2,996			17.57		2,682			17.70

	Number of Stock Options (in thousands)		Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
May 31, 2015
Outstanding		4,044		4.82	$	38,277
Exercisable		3,276		4.42		31,625
May 31, 2014
Outstanding		4,752		5.50	$	107,970
Exercisable		2,996		4.67		68,108
May 31, 2013
Outstanding		5,517		6.06	$	94,860
Exercisable		2,682		4.50		44,752

During fiscal 2015, the total intrinsic value of stock options exercised was $13,218,000. The total amount of cash received from the exercise of stock options during fiscal 2015 was $2,015,000, and the related excess tax benefit realized from the exercise of these stock options was $7,178,000.

The following table summarizes information about non-vested stock option awards for fiscal 2015:

	Number of Stock Options (in thousands)			Weighted Average Grant Date Fair Value Per Share
Non-vested, beginning of year		1,756		$	6.38
Granted		97			15.98
Vested		(1,038	)		6.32
Forfeited		(47	)		6.33
Non-vested, end of year		768		$	7.66

Service-Based Restricted Common Shares

We have awarded restricted common shares to certain employees and non-employee directors that contain service-based vesting conditions. Service-based restricted common shares granted to employees cliff

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vest three years from the date of grant. Service-based restricted common shares granted to non-employee directors vest under the same parameters as the stock options discussed above. These restricted common shares are valued at the closing market price of our common shares on the date of the grant.

The table below sets forth the restricted common shares we granted during each of fiscal 2015, fiscal 2014, and fiscal 2013. The calculated pre-tax stock-based compensation expense for these restricted common shares will be recognized on a straight-line basis over their respective vesting periods.

(in thousands, except per share amounts)	2015		2014		2013
Granted		240		380		121
Weighted average grant date fair value, per share	$	40.05	$	33.14	$	20.77
Pre-tax stock-based compensation	$	8,660	$	11,307	$	2,299

The following tables summarize our restricted common share activity for the years ended May 31:

	2015					2014					2013
(in thousands, except per share)	Restricted Common Shares			Weighted Average Grant Date Fair Value		Restricted Common Shares			Weighted Average Grant Date Fair Value		Restricted Common Shares			Weighted Average Grant Date Fair Value
Outstanding, beginning of year		573		$	28.36		399		$	18.74		513			17.08
Granted		240			40.05		380			33.14		121			20.76
Vested		(142	)		23.32		(185	)		17.17		(233	)		16.10
Forfeited		(36	)		32.62		(21	)		30.70		(2	)		22.09
Outstanding, end of year		635			33.65		573			28.36		399			18.74
Weighted average remaining contractual life of out standing restricted common shares (in years)		1.41					1.61					1.31
Aggregate intrinsic value of outstanding restricted common shares	$	17,269				$	23,112				$	13,701
Aggregate intrinsic value of restricted common shares vested during the year	$	5,400				$	7,499				$	5,559

Market-Based Restricted Common Shares

During fiscal 2015, we granted an aggregate of 50,000 restricted common shares to two key employees under one of our stock-based compensation plans. Vesting of these restricted common share awards is contingent upon the price of our common shares reaching $60.00 per share and remaining at or above that price for 30 consecutive days during the five-year period following the date of grant and the completion of a five-year service vesting period. The grant-date fair value of these restricted common shares, as determined by a Monte Carlo simulation model, was $32.06 per share. The Monte Carlo simulation model is a statistical technique that incorporates multiple assumptions to determine the probability that the market condition will be achieved. The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	1.60	%
Expected volatility	44.00	%
Risk-free interest rate	1.70	%

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The calculated pre-tax stock-based compensation expense for these restricted common shares is $1,603,000 and will be recognized on a straight-line basis over the five-year service vesting period.

During fiscal 2014, we granted 360,000 restricted common shares to certain key employees under our stock-based compensation plans. Vesting of these restricted common share awards is contingent upon the price of our common shares reaching $50.00 per share within a five-year period from the date of grant and remaining at or above that price for 30 consecutive days and the completion of a three-year service vesting period. The grant-date fair value of these restricted common shares, as determined by a Monte Carlo simulation model, was $24.19 per share. The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	2.28	%
Expected volatility	53.40	%
Risk-free interest rate	1.41	%

The calculated pre-tax stock-based compensation expense for these restricted common shares was determined to be $8,708,000 and will continue to be recognized on a straight-line basis over the remaining vesting period.

Performance Shares

We have awarded performance shares to certain key employees that are contingent (i.e., vest) upon achieving corporate targets for cumulative corporate economic value added, earnings per share growth and, in the case of business unit executives, business unit operating income targets for the three-year periods ended or ending May 31, 2015, 2016 and 2017. These performance share awards will be paid, to the extent earned, in common shares of the Company in the fiscal quarter following the end of the applicable three-year performance period. The fair value of our performance shares is determined by the closing market prices of the underlying common shares at their respective grant dates and the pre-tax stock-based compensation expense is based on our periodic assessment of the probability of the targets being achieved and our estimate of the number of common shares that will ultimately be issued.

The table below sets forth the performance shares we granted (at target levels) during fiscal 2015, fiscal 2014, and fiscal 2013:

(in thousands, except per share amounts)	2015		2014		2013
Granted		61		59		108
Weighted average grant date fair value, per share	$	42.71	$	33.33	$	22.08
Pre-tax stock-based compensation	$	2,611	$	1,958	$	2,383

Note K – Employee Pension Plans

We provide retirement benefits to employees mainly through defined contribution retirement plans. Eligible participants make pre-tax contributions based on elected percentages of eligible compensation, subject to annual addition and other limitations imposed by the Internal Revenue Code and the various plans’ provisions. Company contributions consist of company matching contributions, annual or monthly employer contributions and discretionary contributions, based on individual plan provisions.

We also have one defined benefit plan, The Gerstenslager Company Bargaining Unit Employees’ Pension Plan (the “Gerstenslager Plan” or “defined benefit plan”). The Gerstenslager Plan is a non-contributory pension plan, which covers certain employees based on age and length of service. Our contributions have complied with ERISA’s minimum funding requirements. Effective May 9, 2011, in connection with the formation of the

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ArtiFlex joint venture, the Gerstenslager Plan was frozen, which qualified as a curtailment under the applicable accounting guidance. We did not recognize a gain or loss in connection with the curtailment of the Gerstenslager Plan.

The following table summarizes the components of net periodic pension cost for the defined benefit plan and the defined contribution plans for the years ended May 31:

(in thousands)	2015			2014			2013
Defined benefit plan:
Interest cost	$	1,541		$	1,403		$	1,361
Actual return on plan assets		1,846			2,524			4,355
Net amortization and deferral		(3,641	)		(4,175	)		(5,522	)
Net periodic pension cost (benefit) on defined benefit plan		(254	)		(248	)		194
Defined contribution plans		13,270			12,586			9,955
Total retirement plan cost	$	13,016		$	12,338		$	10,149

The following actuarial assumptions were used for our defined benefit plan:

	2015			2014			2013
To determine benefit obligation:
Discount rate		4.07	%		4.38	%		4.44	%
To determine net periodic pension cost:
Discount rate		4.38	%		4.44	%		4.16	%
Expected long-term rate of return		7.00	%		8.00	%		8.00	%
Rate of compensation increase		n/a			n/a			n/a

To calculate the discount rate, we used the expected cash flows of the benefit payments and the Citigroup Pension Index. The Gerstenslager Plan’s expected long-term rate of return in fiscal 2015, fiscal 2014 and fiscal 2013 was based on the actual historical returns adjusted for a change in the frequency of lump-sum settlements upon retirement. In determining our benefit obligation, we use the actuarial present value of the vested benefits to which each eligible employee is currently entitled, based on the employee’s expected date of separation or retirement.

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The following tables provide a reconciliation of the changes in the projected benefit obligation and fair value of plan assets and the funded status for the Gerstenslager Plan during fiscal 2015 and fiscal 2014 as of the respective measurement dates:

(in thousands)	May 31, 2015			May 31, 2014
Change in benefit obligation
Benefit obligation, beginning of year	$	35,539		$	31,930
Interest cost		1,541			1,403
Actuarial loss		3,924			3,002
Benefits paid		(777	)		(796	)
Benefit obligation, end of year	$	40,227		$	35,539
Change in plan assets
Fair value, beginning of year	$	26,470		$	24,442
Actual return on plan assets		1,846			2,524
Company contributions		620			300
Benefits paid		(777	)		(796	)
Fair value, end of year	$	28,159		$	26,470
Funded status	$	(12,068	)	$	(9,069	)
Amounts recognized in the consolidated balance sheets consist of:
Other liabilities	$	(12,067	)	$	(9,069	)
Accumulated other comprehensive loss		17,900			14,028
Amounts recognized in accumulated other comprehensive loss consist of:
Net loss		17,900			14,028
Total	$	17,900		$	14,028

The following table shows other changes in plan assets and benefit obligations recognized in OCI during the fiscal year ended May 31:

(in thousands)	2015			2014
Net actuarial loss	$	(4,199	)	$	(2,419	)
Amortization of net loss		327			290
Total recognized in other comprehensive loss	$	(3,872	)	$	(2,129	)
Total recognized in net periodic benefit cost and other comprehensive loss	$	(3,618	)	$	(1,881	)

The estimated net loss for the defined benefit plan that will be amortized from AOCI into net periodic pension cost over the fiscal year ending May 31, 2016 is $433,654.

Pension plan assets are required to be disclosed at fair value in the consolidated financial statements. Fair value is defined in “Note Q – Fair Value Measurements.” The pension plan assets’ fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

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The following table sets forth, by level within the fair value hierarchy, a summary of the defined benefit plan’s assets measured at fair value on a recurring basis at May 31, 2015:

(in thousands)	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment:
Money Market Funds	$	1,775	$	1,775	$	-	$	-
Bond Funds		11,524		11,524		-		-
Equity Funds		14,860		14,860		-		-
Totals	$	28,159	$	28,159	$	-	$	-

The following table sets forth by level within the fair value hierarchy a summary of the defined benefit plan’s assets measured at fair value on a recurring basis at May 31, 2014:

(in thousands)	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment:
Money Market Funds	$	1,099	$	1,099	$	-	$	-
Bond Funds		11,570		11,570		-		-
Equity Funds		13,801		13,801		-		-
Totals	$	26,470	$	26,470	$	-	$	-

Fair values of the money market, bond and equity funds held by the defined benefit plan were determined by quoted market prices.

Plan assets for the defined benefit plan consisted principally of the following as of the respective measurement dates:

	May 31, 2015			May 31, 2014
Asset category
Equity securities		53	%		52	%
Debt securities		41	%		44	%
Other		6	%		4	%
Total		100	%		100	%

Equity securities include no employer stock. The investment policy and strategy for the defined benefit plan is: (i) long-term in nature with liquidity requirements that are anticipated to be minimal due to the projected normal retirement date of the average employee and the current average age of participants; (ii) to earn nominal returns, net of investment fees, equal to or in excess of the actuarial assumptions of the plan; and (iii) to include a strategic asset allocation of 60-80% equities, including international, and 20%-40% fixed income investments. No employer contributions are expected to be made to the defined benefit plan during fiscal 2016.

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The following estimated future benefits, which reflect expected future service, as appropriate, are expected to be paid during the fiscal years noted:

(in thousands)
2016	$	799
2017	$	872
2018	$	958
2019	$	1,080
2020	$	1,183
2021-2025	$	7,896

Commercial law requires us to pay severance and service benefits to employees at our Austrian Pressure Cylinders location. Severance benefits must be paid to all employees hired before December 31, 2002. Employees hired after that date are covered under a governmental plan that requires us to pay benefits as a percentage of compensation (included in payroll tax withholdings). Service benefits are based on a percentage of compensation and years of service. The accrued liability for these unfunded plans was $5,564,000 and $6,440,000 at May 31, 2015 and 2014, respectively, and was included in other liabilities on the consolidated balance sheets. Net periodic pension cost for these plans was $718,000, $677,000, and $689,000, for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. The assumed salary rate increase was 3.0%, for each of fiscal 2015, fiscal 2014 and fiscal 2013. The discount rate at May 31, 2015, 2014 and 2013 was 1.60%, 3.25%, and 4.50%, respectively. Each discount rate was based on a published corporate bond rate with a term approximating the estimated benefit payment cash flows and is consistent with European and Austrian regulations.

Note L – Income Taxes

Earnings before income taxes for the years ended May 31 include the following components:

(in thousands)	2015		2014		2013
United States based operations	$	104,732	$	210,783	$	190,942
Non – United States based operations		8,296		6,718		10,358
Earnings before income taxes		113,028		217,501		201,300
Less: Net earnings attributable to noncontrolling interests*		10,471		8,852		393
Earnings before income taxes attributable to controlling interest	$	102,557	$	208,649	$	200,907

* Net earnings attributable to noncontrolling interests are not taxable to Worthington.

Significant components of income tax expense (benefit) for the years ended May 31 were as follows:

(in thousands)	2015			2014			2013
Current
Federal	$	57,511		$	73,149		$	54,427
State and local		2,731			3,537			4,109
Foreign		5,490			6,579			4,131
		65,732			83,265			62,667
Deferred
Federal		(37,839	)		(25,453	)		4,698
State and local		(754	)		(1,194	)		(2,170	)
Foreign		(1,367	)		731			(730	)
		(39,960	)		(25,916	)		1,798
	$	25,772		$	57,349		$	64,465

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Tax benefits related to stock-based compensation that were credited to additional paid-in capital were $6,179,000, $7,115,000, and $4,054,000 for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Tax benefits (expenses) related to defined benefit pension liability that were credited to (deducted from) other comprehensive income (“OCI”) were $1,914,000, $511,000, and $(1,415,000) for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Tax benefits (expenses) related to cash flow hedges that were credited to (deducted from) OCI were $6,952,000, $(1,039,000), and $(763,000) for fiscal 2015, fiscal 2014 and fiscal 2013, respectively.

A reconciliation of the 35% federal statutory tax rate to total tax provision follows:

	2015			2014			2013
Federal statutory rate		35.0	%		35.0	%		35.0	%
State and local income taxes, net of federal tax benefit		3.0			2.0			2.3
Change in state and local valuation allowances		(1.1	)		(0.9	)		(1.3	)
Non-U.S. income taxes at other than 35%		(0.7	)		(1.0	)		(1.7	)
Change in Non-U.S. valuation allowances		1.2			1.4			1.1
Qualified production activities deduction		(5.9	)		(3.9	)		(3.0	)
Acquisition of an additional 10% interest in TWB		(0.0	)		(3.4	)		(0.0	)
Research & development credits		(0.2	)		(1.1	)		(0.1	)
Tax write off of investment in foreign subsidiary		(0.0	)		(1.1	)		(0.0	)
Benefit related to foreign tax credits		(5.3	)		(0.0	)		(0.0	)
Other		(0.9	)		0.5			(0.2	)
Effective tax rate attributable to controlling interest		25.1	%		27.5	%		32.1	%

The above effective tax rate attributable to controlling interest excludes any impact from the inclusion of net earnings attributable to noncontrolling interests in our consolidated statements of earnings. The effective tax rates upon inclusion of net earnings attributable to noncontrolling interests were 22.8%, 26.4% and 32.0% for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. The change in effective income tax rates, upon inclusion of net earnings attributable to noncontrolling interests, is primarily a result of our Spartan, Worthington Nitin Cylinders, Worthington Aritas, and TWB consolidated joint ventures. The earnings attributable to the noncontrolling interests in Spartan and TWB’s U.S. operations do not generate tax expense to Worthington since the investors in Spartan and TWB’s U.S. operations are taxed directly based on the earnings attributable to them. The tax expense of Worthington Nitin Cylinders and Worthington Aritas, both foreign corporations, is reported in our consolidated tax expense. Since the consolidation of TWB on July 31, 2013, the tax expense of TWB’s wholly-owned foreign corporations are reported in our consolidated tax expense.

Under applicable accounting guidance, a tax benefit may be recognized from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, including resolution of any related appeals or litigation processes, based on the technical merits of the position. Any tax benefits recognized in our financial statements from such a position were measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.

The total amount of unrecognized tax benefits were $3,530,000, $4,110,000, and $3,705,000 as of May 31, 2015, 2014 and 2013, respectively. The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate attributable to controlling interest was $2,401,000 as of May 31, 2015. Unrecognized tax benefits are the differences between a tax position taken, or expected to be taken in a tax return, and the benefit recognized for accounting purposes. Accrued amounts of interest and penalties related to unrecognized tax benefits are recognized as part of income tax expense within our consolidated statements of earnings. As of May 31, 2015, 2014 and 2013, we had accrued liabilities of $947,000 $1,049,000 and $1,128,000, respectively, for interest and penalties related to unrecognized tax benefits.

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A tabular reconciliation of unrecognized tax benefits follows:

(In thousands)
Balance at May 31, 2014	$	4,110
Increases – tax positions taken in prior years		306
Decreases – tax positions taken in prior years		(456	)
Increases (decreases) – current tax positions		672
Settlements		(636	)
Lapse of statutes of limitations		(466	)
Balance at May 31, 2015	$	3,530

Approximately $922,000 of the liability for unrecognized tax benefits is expected to be settled in the next twelve months due to the expiration of statutes of limitations in various tax jurisdictions and as a result of expected settlements with various tax jurisdictions. While it is expected that the amount of unrecognized tax benefits will change in the next twelve months, any change is not expected to have a material impact on our consolidated financial position, results of operations or cash flows.

The following is a summary of the tax years open to examination by major tax jurisdiction:

U.S. Federal – 2012 and forward

U.S. State and Local – 2010 and forward Austria – 2013 and forward

Canada – 2011 and forward

Mexico – 2009 and forward

Earnings before income taxes attributable to foreign sources for fiscal 2015, fiscal 2014 and fiscal 2013 were as noted above. As of May 31, 2015, and based on the tax laws in effect at that time, it remains our intention to continue to indefinitely reinvest our undistributed foreign earnings, except for the foreign earnings of our TWB joint venture and our wholly-owned Canadian subsidiary (“Canada”), which ceased operations in February 2014 as a result of the sale of the Company’s small and medium steel high pressure gas and cylinders business in North America. The decision to no longer reinvest Canada’s undistributed earnings indefinitely was made during the fourth quarter of fiscal 2014. Accordingly, no deferred tax liability has been recorded for our foreign earnings, except those that pertain to TWB and Canada. Excluding TWB and Canada, the undistributed earnings of our foreign subsidiaries at May 31, 2015 were approximately $205,000,000. If such earnings were not permanently reinvested, a deferred tax liability of approximately $13,000,000 would have been required.

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The components of our deferred tax assets and liabilities as of May 31 were as follows:

(in thousands)	2015			2014
Deferred tax assets
Accounts receivable	$	1,895		$	2,400
Inventories		8,051			7,210
Accrued expenses		33,678			40,873
Net operating and capital loss carry forwards		14,326			19,302
Tax credit carry forwards		3,688			203
Stock-based compensation		20,434			12,573
Derivative contracts		9,177			1,838
Other		247			541
Total deferred tax assets		91,496			84,940
Valuation allowance for deferred tax assets		(13,036	)		(21,701	)
Net deferred tax assets		78,460			63,239
Deferred tax liabilities
Property, plant and equipment		(39,433	)		(67,472	)
Undistributed earnings of unconsolidated affiliates		(35,165	)		(39,429	)
Other		(2,150	)		(3,395	)
Total deferred tax liabilities		(76,748	)		(110,296	)
Net deferred tax asset (liability)	$	1,712		$	(47,057	)

The above amounts are classified in the consolidated balance sheets as of May 31 as follows:

(in thousands)	2015			2014
Current assets:
Deferred income taxes	$	22,034		$	24,272
Noncurrent assets:
Other assets		1,173			4
Noncurrent liabilities:
Deferred income taxes		(21,495	)		(71,333	)
Net deferred tax asset (liability)	$	1,712		$	(47,057	)

At May 31, 2015, we had tax benefits for state net operating loss carry forwards of $12,218,000 that expire from fiscal 2016 to the fiscal year ending May 31, 2035, tax benefits for foreign net operating loss carry forwards of $2,108,000 that expire from fiscal 2018 to the fiscal year ending May 31, 2035, and a tax benefit for foreign income tax credit carry forwards of $3,653,000, that expires on May 31, 2025.

The valuation allowance for deferred tax assets of $13,036,000 at May 31, 2015 is associated primarily with the net operating loss carry forwards. The valuation allowance includes $11,607,000 for state and $1,429,000 for foreign. The majority of the state valuation allowance relates to our Decatur, Alabama facility and metal framing operations in various states. The foreign valuation allowance relates to operations in Turkey. Based on our history of profitability and taxable income projections, we have determined that it is more likely than not that the remaining net deferred tax assets are otherwise realizable.

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Note M – Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for the years ended May 31:

(in thousands, except per share amounts)	2015		2014		2013
Numerator (basic & diluted):
Net earnings attributable to controlling interest – income available to common shareholders	$	76,785	$	151,300	$	136,442
Denominator:
Denominator for basic earnings per share attributable to controlling interest – weighted average common shares		66,309		68,944		69,301
Effect of dilutive securities		2,174		2,720		2,013
Denominator for diluted earnings per share attributable to controlling interest – adjusted weighted average common shares		68,483		71,664		71,314
Basic earnings per share attributable to controlling interest	$	1.16	$	2.19	$	1.97
Diluted earnings per share attributable to controlling interest		1.12		2.11		1.91

Stock options covering 97,798, 7,945, and 257,667 common shares for fiscal 2015, fiscal 2014 and fiscal 2013, respectively, have been excluded from the computation of diluted earnings per share because the effect would have been anti-dilutive for those periods because the exercise price of the stock options was greater than the average market price of the common shares during the period.

Note N – Segment Data

Our operations are managed principally on a products and services basis and include three reportable business segments: Steel Processing, Pressure Cylinders and Engineered Cabs, each of which is comprised of a similar group of products and services. Factors used to identify reportable business segments include the nature of the products and services provided by each business, the management reporting structure, similarity of economic characteristics and certain quantitative measures, as prescribed by authoritative guidance. A discussion of each of our reportable business segments is outlined below.

During the first quarter of fiscal 2015, we made certain organizational changes impacting the internal reporting and management structure of our Steel Packaging operating segment. As a result of these organizational changes, management responsibilities and internal reporting were realigned under our Steel Processing operating segment. Segment information reported in previous periods has been restated to conform to this new presentation.

Steel Processing:    The Steel Processing operating segment consists of the Worthington Steel business unit, and includes Precision Specialty Metals, Inc., a specialty stainless processor located in Los Angeles, California, and Worthington Steelpac Systems, LLC (“SteelPac”), which designs and manufactures reusable steel custom platforms, racks and pallets for supporting, protecting and handling products throughout the shipping process. Worthington Steel also includes our consolidated joint ventures: Spartan and TWB. Spartan operates a cold-rolled hot dipped galvanizing line and TWB operates a laser welded blanking business. Worthington Steel is an intermediate processor of flat-rolled steel. This operating segment’s processing capabilities include pickling; slitting; oscillate slitting; cold reducing; hot-dipped galvanizing; hydrogen annealing; cutting-to-length; temper rolling; tension leveling; edging; non-metallic coating, including dry lubrication, acrylic and paint; and configured blanking. Worthington Steel sells to customers principally in the automotive, construction, lawn and garden, hardware, furniture, office equipment, leisure and recreation, appliance, agricultural, HVAC, container and aerospace markets. Worthington Steel also toll processes steel for steel mills, large end-users, service centers and other processors. Toll processing is different from typical steel processing in that the mill, end-user or other party retains title to the steel and has the responsibility for selling the end product.

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Pressure Cylinders:    The Pressure Cylinders operating segment consists of the Worthington Cylinders business unit and three consolidated joint ventures: India-based Worthington Nitin Cylinders, a manufacturer of high-pressure, seamless steel cylinders for CNG and other industrial gas storage applications; Worthington Aritas, one of Europe’s leading cryogenic technology companies for LNG and other gas storage applications; and dHybrid, which manufactures CNG fuel systems for large trucks out of a facility in Salt Lake City, Utah. The percentage of consolidated net sales generated by Pressure Cylinders was approximately 30% in each of fiscal 2015, fiscal 2014 and fiscal 2013.

Our Pressure Cylinders operating segment manufactures and sells filled and unfilled pressure cylinders, tanks, hand torches, and oil and gas equipment along with various accessories and related products for diversified end-use market applications. The following is a description of these markets:

• Industrial Products:    This market sector includes high pressure and acetylene cylinders for industrial gases, refrigerant and certain propane gas cylinders, hand torch cylinders and joining products such as solder and brazing rods and other specialty products. Cylinders in these markets are generally sold to gas producers, cylinder exchangers and industrial distributors. Industrial cylinders hold fuel for uses such as cutting, brazing and soldering, semiconductor production, and beverage delivery. Refrigerant gas cylinders are used to hold refrigerant gases for commercial, residential and automotive air conditioning and refrigeration systems. LPG cylinders hold fuel for barbeque grills, recreational vehicle equipment, residential and light commercial heating systems, industrial forklifts and commercial/residential cooking (the latter, generally outside North America). Specialty products include a variety of fire suppression and chemical tanks.

• Consumer Products:    This market sector includes propane-filled cylinders for torches, camping stoves and other applications, hand held torches and accessories, and Balloon Time^® helium-filled balloon kits. These products are sold primarily to mass merchandisers and distributors.

• Alternative Fuels:    This market sector includes composite and steel cylinders for containment of CNG and hydrogen for automobiles, buses, and light-duty trucks, propane/autogas cylinders for automobiles and light- and medium-duty trucks, as well as CNG fuel systems for buses, refuse and heavy-duty trucks.

• Oil and Gas Equipment:    This market sector includes steel and fiberglass storage tanks, separation equipment, controls and other products primarily used in the energy markets, including oil and gas and nuclear. This sector also includes hoists and other marine products which are used principally in shipyard lift systems. This sector also leverages its manufacturing competencies to produce pressure vessels, atmospheric tanks, controls and various custom machined components for other industrial and agricultural end markets. This market sector was formed in fiscal 2013 as a result of the acquisition of Westerman, Inc. on September 17, 2012, and also include the assets acquired from Palmer Mfg. & Tank, Inc, Steffes Corporation and MEF.

• Cryogenics:    This market sector includes cryogenic equipment systems, and service for the transportation, storage and use of liquefied gases such as LNG and industrial gases such as liquid nitrogen, oxygen, argon, and hydrogen. Key end markets include LNG storage and transportation, LNG onboard fueling for marine applications, and storage and transportation of industrial gases for manufacturing and healthcare. Pressure Cylinders entered this sector through new product development of industrial gas cryogenic cylinders, its joint venture with Aritas in Istanbul, Turkey which focuses on highly engineered tanks and systems, and the acquisition of cryogenic trailer manufacturer, JRE, based in Boston.

Engineered Cabs:    This operating segment consists of the Worthington Industries Engineered Cabs business unit, a non-captive designer and manufacturer of high-quality, custom-engineered open and enclosed cabs and operator stations and custom fabrications for heavy mobile equipment used primarily in the agricultural, construction, forestry, mining, military, and various other industries. Engineered Cabs’ product design, engineering support and broad manufacturing capabilities enable it to produce cabs and structures used in products ranging from small utility equipment to the large earthmovers.

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Other:    The Other category includes the Construction Services and Worthington Energy Innovations operating segments, as they do not meet the quantitative thresholds for separate disclosure. Certain income and expense items not allocated to our operating segments are also included in Other.

Construction Services:    The Construction Services operating segment consists of the Military Construction business unit, and, for periods prior to its closure in May 2014, the Worthington Construction Group business unit. The Company is in the process of winding down its Military Construction business unit, whose operations involve the supply and construction of single family housing, with a focus on military housing.

Worthington Energy Innovations:    WEI is a 75%-owned consolidated joint venture with Tom E. Kiser (20%) and Stonehenge Structured Finance Partners, LLC (5%) (together referred to as “WEI Partners”), with offices in Fremont and Columbus, Ohio. WEI is an Energy Services Company that develops cost-effective energy solutions for entities in North America and Asia. Once these solutions are implemented, WEI monitors, verifies and guarantees these energy saving solutions. WEI’s financial results are reported within the Other category for segment reporting purposes.

The accounting policies of the reportable business segments and other operating segments are described in “Note A – Summary of Significant Accounting Policies.” We evaluate operating segment performance based on operating income (loss). Inter-segment sales are not material.

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The following table presents summarized financial information for our reportable business segments as of, and for the fiscal years ended, May 31:

(in thousands)	2015			2014			2013
Net sales
Steel Processing	$	2,145,744		$	1,936,073		$	1,462,630
Pressure Cylinders		1,001,402			928,396			859,264
Engineered Cabs		192,953			200,528			226,002
Other		44,135			61,429			64,348
Total net sales	$	3,384,234		$	3,126,426		$	2,612,244
Operating income (loss)
Steel Processing	$	108,707		$	119,025		$	68,156
Pressure Cylinders		58,113			55,004			66,367
Engineered Cabs		(97,260	)		(26,516	)		4,158
Other		(9,003	)		(11,760	)		(9,539	)
Total operating income	$	60,557		$	135,753		$	129,142
Depreciation and amortization
Steel Processing	$	34,526		$	32,882		$	25,918
Pressure Cylinders		34,953			31,984			26,919
Engineered Cabs		10,184			10,027			9,096
Other		5,426			4,837			4,536
Total depreciation and amortization	$	85,089		$	79,730		$	66,469
Impairment of goodwill and long-lived assets
Steel Processing	$	3,050		$	7,141		$	-
Pressure Cylinders		11,911			32,005			6,488
Engineered Cabs		83,989			19,100			-
Other		1,179			-			-
Total impairment of goodwill and long-lived assets	$	100,129		$	58,246		$	6,488
Restructuring and other expense (income)
Steel Processing	$	72		$	(3,382	)	$	-
Pressure Cylinders		6,408			(745	)		2,665
Engineered Cabs		(332	)		-			-
Other		366			1,215			628
Total restructuring and other expense (income)	$	6,514		$	(2,912	)	$	3,293
Joint venture transactions
Steel Processing	$	-		$	-		$	-
Pressure Cylinders		-			-			-
Engineered Cabs		-			-			-
Other		413			1,036			(604	)
Total joint venture transactions	$	413		$	1,036		$	(604	)
Total assets
Steel Processing	$	829,116		$	850,748		$	610,464
Pressure Cylinders		804,799			818,720			742,686
Engineered Cabs		94,506			181,251			201,048
Other		356,721			445,662			396,659
Total assets	$	2,085,142		$	2,296,381		$	1,950,857
Capital expenditures
Steel Processing	$	34,546			16,682		$	8,371
Pressure Cylinders		35,872			32,364			13,368
Engineered Cabs		8,951			10,351			6,265
Other		16,886			11,941			16,584
Total capital expenditures	$	96,255		$	71,338		$	44,588

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The following table presents net sales by geographic region for the years ended May 31:

(in thousands)	2015		2014		2013
United States	$	3,175,972	$	2,917,484	$	2,418,307
Europe		125,778		136,513		159,562
Mexico		56,687		51,430		-
Canada		6,464		10,324		21,257
Other		19,333		10,675		13,118
Total	$	3,384,234	$	3,126,426	$	2,612,244

The following table presents property, plant and equipment, net, by geographic region as of May 31:

(in thousands)	2015		2014
United States	$	439,296	$	429,068
Europe		50,520		56,884
Mexico		5,030		6,314
Canada		4,284		-
Other		14,060		6,595
Total	$	513,190	$	498,861

Note O – Acquisitions

Fiscal 2015

Rome Strip Steel Company, Inc.

On January 16, 2015, the Company acquired the assets of Rome Strip Steel Company, Inc. (“Rome Strip Steel”) for cash consideration of $54,495,000. This amount differs from the $55,312,000 paid at closing due to an estimated working capital deficit of $817,000. Located in Rome, New York, the Rome Strip Steel business manufactures cold rolled steel to extremely tight tolerances. The acquired assets became part of our Steel Processing operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of the assets of Rome Strip Steel, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	4,300		10
Non-compete agreements		1,200		5
Total acquired identifiable intangible assets	$	5,500

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

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The following table summarizes the consideration transferred for the assets of Rome Strip Steel and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Cash	$	10
Accounts receivable		6,333
Inventories		17,063
Prepaid expenses		41
Intangible assets		5,500
Property, plant and equipment		22,775
Total identifiable assets		51,722
Accounts payable		(3,091	)
Other accrued items		(410	)
Other liabilites		(313	)
Net assets		47,908
Goodwill		6,587
Purchase price	$	54,495
Plus: estimated working capital deficit		817
Cash paid at closing	$	55,312

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

dHybrid Systems, LLC

On October 20, 2014, we acquired a 79.59% ownership interest in dHybrid, a manufacturer of CNG systems for large trucks, for total consideration of $15,918,000, including contingent consideration with an estimated fair value of $3,979,000, and the assumption of certain liabilities. The remaining 20.41% was retained by a founding member. The acquired business became part of our Pressure Cylinders operating segment upon closing.

The contingent consideration arrangement requires the Company to pay $3,979,000 of additional consideration when cumulative net sales beginning January 1, 2013 reach $20,000,000 plus 50% of gross margin above certain thresholds in each of the five twelve-month periods following the closing date. We determined the acquisition-date fair value of the contingent consideration obligation using a probability weighted cash flow approach based on management’s projections of future sales and gross margin. Refer to “Note Q – Fair Value Measurements” for additional information regarding the fair value measurement of the contingent consideration obligation.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of the assets of dHybrid, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Technological know-how	$	3,100		10
Customer relationships		600		7
Backlog		88		Less than 1
Total acquired identifiable intangible assets	$	3,788

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The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for our 79.59% interest in dHybrid and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Consideration Transferred:
Cash consideration	$	11,939
Fair value of contingent consideration		3,979
Total consideration	$	15,918
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash and cash equivalents	$	1,132
Accounts receivable		1,482
Inventories		2,732
Prepaid expenses and other current assets		38
Intangible assets		3,788
Property, plant and equipment		406
Total identifiable assets		9,578
Accounts payable		(1,867	)
Accrued liabilities		(533	)
Long-term debt		(5,000	)
Net identifiable assets		2,178
Goodwill		17,822
Net assets		20,000
Noncontrolling interest		(4,082	)
Total consideration	$	15,918

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

Midstream Equipment Fabrication LLC

On August 1, 2014, we acquired the assets of Midstream Equipment Fabrication LLC (“MEF”) for cash consideration of $38,441,000 and the assumption of certain liabilities. The MEF business manufactures patented horizontal heated and high pressure separators used to separate oilfield fluids and gas. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

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The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of the assets of MEF, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful Life (Years)
Category
Technological know-how	$	5,100		10
Customer relationships		4,300		7
Non-compete agreements		2,400		4
Backlog		1,800		Less than 1
Total acquired identifiable intangible assets	$	13,600

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for the assets of MEF and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Accounts receivable	$	3,329
Inventories		3,550
Intangible assets		13,600
Property, plant and equipment		166
Total identifiable assets		20,645
Accounts payable		(555	)
Other accrued items		(92	)
Deferred revenue		(4,808	)
Net assets		15,190
Goodwill		23,251
Cash consideration	$	38,441

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

James Russell Engineering Works, Inc.

On July 31, 2014, we acquired the assets of James Russell Engineering Works, Inc. (“JRE”) for cash consideration of $1,571,000. The JRE business manufactures aluminum and stainless steel cryogenic transport trailers used for hauling liquid oxygen, nitrogen, argon, hydrogen and LNG for producers and distributors of industrial gases and LNG. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values. The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a

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going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for the assets of JRE and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Cash	$	253
Accounts receivable		509
Inventories		2,793
Prepaid expense and other current assets		40
Property, plant and equipment		250
Total identifiable assets		3,845
Accounts payable		(514	)
Other accrued items		(2,160	)
Net identifiable assets		1,171
Goodwill		400
Total cash consideration	$	1,571

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward, and have not been material. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

Fiscal 2014

The Tank Manufacturing Division of Steffes Corporation

On March 27, 2014, we acquired the tank manufacturing division of Steffes Corporation (“Steffes”) for cash consideration of approximately $27,962,000. This division manufactures oilfield storage tanks for customers drilling in the Bakken shale and Williston Basin region out of a manufacturing facility located in Dickinson, North Dakota. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of Steffes, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful Life (Years)
Category
Customer relationships	$	10,000		9
Trade name		290		Less than 1
Total acquired identifiable intangible assets	$	10,290

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

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The following table summarizes the consideration transferred for Steffes and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Inventories	$	2,316
Intangible assets		10,290
Property, plant and equipment		2,638
Total identifiable assets		15,244
Goodwill		12,718
Purchase price	$	27,962

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2013, would not be materially different than reported results.

Aritaş Basinçli Kaplar Sanayi

On January 24, 2014, we acquired a 75% interest in Worthington Aritas, one of Europe’s leading LNG and cryogenic technology companies. The remaining 25% stake was retained by the prior owners. The total purchase price, including an adjustment for estimated final working capital, was $35,325,000. The purchase price also included contingent consideration with an estimated fair value of $404,000 at the acquisition date. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

The contingent consideration arrangement required earnings before interest, taxes, depreciation and amortization (“EBITDA”) to exceed $5,000,000 during any 12 consecutive months during the first 14 month period following the closing date. The target EBITDA level was not met during the required time frame and the contingent consideration liability of $404,000 was written off to miscellaneous income during fiscal 2015.

The assets acquired and liabilities assumed were recognized at their estimated acquisition-date fair values based on a preliminary valuation analysis, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of our 75% interest in Worthington Aritas, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	8,400		10
Technological know-how		8,100		20
Trade name		180		2
Non-compete agreements		120		3
Total acquired identifiable intangible assets	$	16,800

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is not expected to be deductible for income tax purposes.

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The following table summarizes the consideration transferred for Worthington Aritas and the final fair values assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)	Preliminary Valuation February 28, 2014			Measurement Period Adjustments			Final Valuation May 31, 2014
Cash and cash equivalents	$	1,037		$	-		$	1,037
Accounts receivable		3,326			(84	)		3,242
Inventories		10,678			-			10,678
Prepaid expenses and other current assets		1,317			-			1,317
Intangible assets		16,800			-			16,800
Other noncurrent assets		1,099			-			1,099
Property, plant and equipment		5,467			-			5,467
Total identifiable assets		39,724			(84	)		39,640
Accounts payable		(5,587	)		-			(5,587	)
Short-term borrowings		(251	)		-			(251	)
Accrued liabilities		(2,756	)		(4,146	)		(6,902	)
Other liabilities		(4,954	)		4,954			-
Deferred taxes		(2,787	)		-			(2,787	)
Net identifiable assets		23,389			724			24,113
Goodwill		23,586			(599	)		22,987
Net assets		46,975			125			47,100
Noncontrolling interest		(11,744	)		(31	)		(11,775	)
Total consideration	$	35,231		$	94		$	35,325

The Company recognized $1,520,000 of acquisition-related costs that were expensed within SG&A expense in fiscal 2014. Operating results of Worthington Aritas have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2013, would not be materially different than reported results.

TWB Company, L.L.C.

On July 31, 2013, we purchased an additional 10% interest in our laser welded blank joint venture, TWB, for $17,869,000, increasing our ownership to a 55% controlling interest. This transaction was accounted for as a step acquisition, which required that we re-measure our previously held 45% ownership interest to fair value and record the difference between fair value and carrying value as a gain in our consolidated statement of earnings. The re-measurement to fair value resulted in a non-cash pre-tax gain of $11,000,000, which is included in miscellaneous income in our consolidated statement of earnings for fiscal 2014. The acquired assets became part of our Steel Processing operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values. In connection with the acquisition of TWB, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	17,438		5-6
Trade names		4,120		Indefinite
Non-compete agreement		470		5
Total acquired identifiable intangible assets	$	22,028

The estimated fair value of the assets acquired and liabilities assumed approximated the purchase price and therefore no goodwill was recognized.

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The following table summarizes the consideration transferred for our 55% controlling interest in TWB and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Consideration Transferred:
Cash consideration	$	17,869
Fair value of previously held equity interest in TWB		72,369
Total consideration	$	90,238
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash and cash equivalents	$	70,826
Accounts receivable		52,012
Inventories		20,403
Prepaid expenses and other current assets		4,027
Intangible assets		22,028
Other noncurrent assets		103
Property, plant and equipment		52,390
Total identifiable assets		221,789
Accounts payable		(50,642	)
Accrued liabilities		(6,431	)
Deferred taxes		(2,109	)
Net assets		162,607
Noncontrolling interest		(72,369	)
Total consideration	$	90,238

The fair value of our previously held equity interest and the noncontrolling interest was derived using a market approach, and included a minority discount of 10% to reflect management’s estimate of the control premium.

Net sales of $319,542,000 and earnings before income taxes of $22,991,000 were included in the Company’s consolidated statement of earnings for fiscal 2014.

Proforma net sales of the combined entity had the acquisition occurred at the beginning of fiscal 2013 were $3,180,428,000 and $2,956,309,000 for the fiscal years ended May 31, 2014 and 2013, respectively. Pro forma earnings would not be materially different than reported results due to our 45% noncontrolling interest in TWB prior to the acquisition date.

Note P – Derivative Instruments and Hedging Activities

We utilize derivative financial instruments to manage exposure to certain risks related to our ongoing operations. The primary risks managed through the use of derivative instruments include interest rate risk, currency exchange risk and commodity price risk. While certain of our derivative instruments are designated as hedging instruments, we also enter into derivative instruments that are designed to hedge a risk, but are not designated as hedging instruments and therefore do not qualify for hedge accounting. These derivative instruments are adjusted to current fair value through earnings at the end of each period.

Interest Rate Risk Management – We are exposed to the impact of interest rate changes. Our objective is to manage the impact of interest rate changes on cash flows and the market value of our borrowings. We utilize a mix of debt maturities along with both fixed-rate and variable-rate debt to manage changes in interest rates. In addition, we enter into interest rate swaps to further manage our exposure to interest rate variations related to our borrowings and to lower our overall borrowing costs.

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Currency Exchange Risk Management – We conduct business in several major international currencies and are therefore subject to risks associated with changing foreign exchange rates. We enter into various contracts that change in value as foreign exchange rates change to manage this exposure. Such contracts limit exposure to both favorable and unfavorable currency fluctuations. The translation of foreign currencies into United States dollars also subjects us to exposure related to fluctuating exchange rates; however, derivative instruments are not used to manage this risk.

Commodity Price Risk Management – We are exposed to changes in the price of certain commodities, including steel, natural gas, zinc and other raw materials, and our utility requirements. Our objective is to reduce earnings and cash flow volatility associated with forecasted purchases and sales of these commodities to allow management to focus its attention on business operations. Accordingly, we enter into derivative contracts to manage the associated price risk.

We are exposed to counterparty credit risk on all of our derivative instruments. Accordingly, we have established and maintain strict counterparty credit guidelines and enter into derivative instruments only with major financial institutions. We have credit support agreements in place with certain counterparties to limit our credit exposure. These agreements require either party to post cash collateral if its cumulative market position exceeds a predefined liability threshold. At May 31, 2015, we had posted total cash collateral of $2,248,000 to our margin accounts. Amounts posted to the margin accounts accrue interest at market rates and are required to be refunded in the period in which the cumulative market position falls below the required threshold. We do not have significant exposure to any one counterparty and management believes the risk of loss is remote and, in any event, would not be material.

Refer to “Note Q – Fair Value Measurements” for additional information regarding the accounting treatment for our derivative instruments, as well as how fair value is determined.

The following table summarizes the fair value of our derivative instruments and the respective line in which they were recorded in the consolidated balance sheet at May 31, 2015:

	Asset Derivatives				Liability Derivatives
(in thousands)	Balance Sheet Location		Fair Value		Balance  Sheet Location		Fair Value
Derivatives designated as hedging instruments:
Commodity contracts		Receivables	$	-		Accounts payable	$	17,241
		Other assets		-		Other liabilities		592
				-				17,833
Interest rate contracts		Receivables		-		Accounts payable		81
		Other assets		-		Other liabilities		113
				-				194
Foreign exchange contracts		Receivables		75		Accounts payable
Totals			$	75			$	18,027
Derivatives not designated as hedging instruments:
Commodity contracts		Receivables	$	96		Accounts payable	$	4,104
		Other assets		-		Other liabilities		-
Totals			$	96			$	4,104
Total Derivative Instruments			$	171			$	22,131

The amounts in the table above reflect the fair value of the Company’s derivative contracts on a net basis. Had these amounts been recognized on a gross basis, the impact would have been a $500,000 increase in receivables with a corresponding increase in accounts payable.

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The following table summarizes the fair value of our derivative instruments and the respective line in which they were recorded in the consolidated balance sheet at May 31, 2014:

	Asset Derivatives				Liability Derivatives
(in thousands)	Balance Sheet Location		Fair Value		Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments:
Interest rate contracts		Receivables	$	-		Accounts payable	$	4,180
		Other assets		-		Other liabilities		-
				-				4,180
Commodity contracts		Receivables		456		Accounts payable		-
				456				-
Totals			$	456			$	4,180
Derivatives not designated as hedging instruments:
Commodity contracts		Receivables	$	796		Accounts payable	$	295
				796				295
Foreign exchange contracts		Receivables		32		Accounts payable		-
				32				-
Totals			$	828			$	295
Total Derivative Instruments			$	1,284			$	4,475

The amounts in the table above reflect the fair value of the Company’s derivative contracts on a net basis. Had these amounts been recognized on a gross basis, the impact would have been a $730,000 increase in receivables with a corresponding increase in accounts payable.

Cash Flow Hedges

We enter into derivative instruments to hedge our exposure to changes in cash flows attributable to interest rate and commodity price fluctuations associated with certain forecasted transactions. These derivative instruments are designated and qualify as cash flow hedges. Accordingly, the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income (“OCI”) and reclassified into earnings in the same line associated with the forecasted transaction and in the same period during which the hedged transaction affects earnings. The ineffective portion of the gain or loss on the derivative instrument is recognized in earnings immediately.

The following table summarizes our cash flow hedges outstanding at May 31, 2015:

(in thousands)	Notional Amount		Maturity Date
Commodity contracts	$	102,129		June 2015 – December 2016
Interest rate contracts		16,809		September 2019
Foreign currency contracts		570		June 2015

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The following table summarizes the gain (loss) recognized in OCI and the gain (loss) reclassified from accumulated OCI into earnings for derivative instruments designated as cash flow hedges during fiscal 2015 and fiscal 2014:

(in thousands)	Income (Loss) Recognized in OCI (Effective Portion)			Location of Income (Loss) Reclassified from Accumulated OCI (Effective Portion)	Income (Loss) Reclassified from Accumulated OCI (Effective Portion)			Location of Income (Loss) (Ineffective Portion) Excluded from Effectiveness Testing	Income (Loss) (Ineffective Portion) Excluded from Effectiveness Testing
For the fiscal year ended
May 31, 2015:
Interest rate contracts	$	(167	)	Interest expense	$	(2,538	)	Interest expense	$	-
Commodity contracts		(29,336	)	Cost of goods sold		(8,364	)	Cost of goods sold		-
Foreign currency contracts		851				855
Totals	$	(28,652	)		$	(10,047	)		$	-
For the fiscal year ended
May 31, 2014:
Interest rate contracts	$	(3,351	)	Interest expense	$	(4,586	)	Interest expense	$	-
Commodity contracts		(2,602	)	Cost of goods sold		(4,915	)	Cost of goods sold		-
Totals	$	(5,953	)		$	(9,501	)		$	-

The estimated net amount of the losses in AOCI at May 31, 2015 expected to be reclassified into net earnings within the succeeding twelve months is $12,619,000 (net of tax of $7,518,000). This amount was computed using the fair value of the cash flow hedges at May 31, 2015, and will change before actual reclassification from other comprehensive income to net earnings during fiscal 2016.

Economic (Non-designated) Hedges

We enter into foreign currency contracts to manage our foreign exchange exposure related to inter-company and financing transactions that do not meet the requirements for hedge accounting treatment. We also enter into certain commodity contracts that do not qualify for hedge accounting treatment. Accordingly, these derivative instruments are adjusted to current market value at the end of each period through earnings.

The following table summarizes our economic (non-designated) derivative instruments outstanding at May 31, 2015:

(in thousands)	Notional Amount		Maturity Date(s)
Commodity contracts	$	33,564		June 2015 - November 2016

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The following table summarizes the gain (loss) recognized in earnings for economic (non-designated) derivative financial instruments during fiscal 2015 and fiscal 2014:

		Income (Loss) Recognized in Earnings
	Location of Income (Loss) Recognized in Earnings	Fiscal Year Ended May 31,
(in thousands)		2015			2014
Commodity contracts	Cost of goods sold	$	(15,432	)	$	(1,304	)
Foreign exchange contracts	Miscellaneous income (expense)		-			27
Total		$	(15,432	)	$	(1,277	)

Note Q – Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is an exit price concept that assumes an orderly transaction between willing market participants and is required to be based on assumptions that market participants would use in pricing an asset or a liability. Current accounting guidance establishes a three-tier fair value hierarchy as a basis for considering such assumptions and for classifying the inputs used in the valuation methodologies. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair values are as follows:

Level 1	–	Observable prices in active markets for identical assets and liabilities.
Level 2	–	Observable inputs other than quoted prices in active markets for identical assets and liabilities.
Level 3	–	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities.

Recurring Fair Value Measurements

At May 31, 2015, our financial assets and liabilities measured at fair value on a recurring basis were as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Derivative contracts (1)	$	-	$	171	$	-	$	171
Total assets	$	-	$	171	$	-	$	171
Liabilities
Derivative contracts (1)	$	-	$	22,131	$	-	$	22,131
Contingent consideration obligations (2)		-		-		3,979		3,979
Total liabilities	$	-	$	22,131	$	3,979	$	26,110

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At May 31, 2014, our financial assets and liabilities measured at fair value on a recurring basis were as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Derivative contracts (1)	$	-	$	1,284	$	-	$	1,284
Total assets	$	-	$	1,284	$	-	$	1,284
Liabilities
Derivative contracts (1)	$	-	$	4,475	$	-	$	4,475
Contingent consideration obligations (2)		-		-		404		404
Total liabilities	$	-	$	4,475	$	404	$	4,879

(1) The fair value of our derivative contracts is based on the present value of the expected future cash flows considering the risks involved, including non-performance risk, and using discount rates appropriate for the respective maturities. Market observable, Level 2 inputs are used to determine the present value of the expected future cash flows. Refer to “Note P – Derivative Instruments and Hedging Activities” for additional information regarding our use of derivative instruments.

(2) The fair value of the contingent consideration obligations is determined using a probability weighted cash flow approach based on management’s projections of future cash flows of the acquired businesses. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements.

Non-Recurring Fair Value Measurements

At May 31, 2015, our assets measured at fair value on a non-recurring basis were categorized as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Long-lived assets held and used (1)	$	-	$	-	$	12,403	$	12,403
Total assets	$	-	$	-	$	12,403	$	12,403

(1) During the fourth quarter of fiscal 2015, the Company determined that indicators of impairment were present with regard to intangible assets related to our CNG fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value of $600,000, resulting in an impairment charge of $2,344,000. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate.

During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs operating segment was necessary. Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs operating segment for recoverability. Recoverability was tested using future cash flow projections based

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on management’s long-range estimates of market conditions. The sum of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence, South Carolina facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values of $2,000,000 and $9,803,000. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements. The key assumptions that drove the fair value calculations were projected cash flows and the discount rate.

At May 31, 2014, our assets measured at fair value on a non-recurring basis were categorized as follows:

(in thousands)	Quoted Prices  in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Long-lived assets held for sale (1)	$	-	$	25,040	$	-	$	25,040
Long-lived assets held and used (2)		-		7,034		-		7,034
Total assets	$	-	$	32,074	$	-	$	32,074

(1) During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $5,925,000, was lower than its net book value, an impairment charge of $18,959,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest, or $7,583,000, was recorded within net earnings attributable to noncontrolling interests in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, management committed to plans to sell the Company’s stainless steel business, Precision Specialty Metals, Inc. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $19,115,000, was lower than its net book value, an impairment charge of $7,141,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

(2) During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. Market observable, Level 2 inputs are used to determine fair value.

The non-derivative financial instruments included in the carrying amounts of cash and cash equivalents, receivables, income taxes receivable, other assets, deferred income taxes, accounts payable, short-term borrowings, accrued compensation, contributions to employee benefit plans and related taxes, other accrued expenses, income taxes payable and other liabilities approximate fair value due to their short-term nature. The fair value of long-term debt, including current maturities, based upon models utilizing market observable (Level 2) inputs and credit risk, was $610,028,000 and $674,488,000 at May 31, 2015 and 2014, respectively. The carrying amount of long-term debt, including current maturities, was $580,193,000 and $655,963,000 at May 31, 2015 and 2014, respectively.

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Note R – Operating Leases

We lease certain property and equipment from third parties under non-cancelable operating lease agreements. Rent expense under operating leases was $17,219,000, $14,677,000 and $13,831,000 in fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Future minimum lease payments for non-cancelable operating leases having an initial or remaining term in excess of one year at May 31, 2015, were as follows:

(in thousands)
2016	$	9,425
2017		8,276
2018		6,931
2019		5,796
2020		4,365
Thereafter		3,684
Total	$	38,477

Note S – Related Party Transactions

We purchase from, and sell to, affiliated companies certain raw materials and services at prevailing market prices. Net sales to affiliated companies for fiscal 2015, fiscal 2014 and fiscal 2013 totaled $32,277,000, $31,441,000, and $19,568,000, respectively. Purchases from affiliated companies for fiscal 2015, fiscal 2014 and fiscal 2013 totaled $8,021,000, $9,387,000, and $4,930,000, respectively. Accounts receivable from affiliated companies were $5,826,000 and $4,124,000 at May 31, 2015 and 2014, respectively. Accounts payable to affiliated companies were $11,528,000 and $12,716,000 at May 31, 2015 and 2014, respectively.

Note T – Quarterly Results of Operations (Unaudited)

The following table summarizes the unaudited quarterly consolidated results of operations for fiscal 2015 and fiscal 2014:

(in thousands, except per share)	Three Months Ended
Fiscal 2015	August 31		November 30		February 28			May 31
Net sales	$	862,414	$	871,012	$	804,785		$	846,023
Gross margin		129,507		125,223		98,491			110,312
Impairment of goodwill and long-lived assets (1)		1,950		14,235		81,600			2,344
Net earnings (loss)		48,820		31,455		(23,243	)		30,226
Net earnings (loss) attributable to controlling interest		44,168		29,462		(25,710	)		28,865
Earnings (loss) per share - basic	$	0.65	$	0.44	$	(0.39	)	$	0.45
Earnings (loss) per share - diluted		0.63		0.43		(0.39	)		0.44
Fiscal 2014	August 31		November 30		February 28			May 31
Net sales	$	692,291	$	769,900	$	773,230		$	891,005
Gross margin		110,964		128,232		122,487			130,836
Impairment of goodwill and long-lived assets (1)		4,641		30,734		-			22,871
Net earnings		56,353		28,340		44,211			31,248
Net earnings attributable to controlling interest		54,557		22,977		40,603			33,163
Earnings per share - basic	$	0.78	$	0.33	$	0.59		$	0.49
Earnings per share - diluted		0.76		0.32		0.57			0.47

(1) For additional information regarding the Company’s impairment charges, refer to “Note C – Goodwill and Other Long-Lived Assets.”

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The sum of the quarterly earnings per share data presented in the table may not equal the annual results due to rounding and the impact of dilutive securities on the annual versus the quarterly earnings per share calculations.

Note U – Subsequent Events

On June 26, 2015, the Company announced the closure of its stainless steel business, PSM. The Company is in the process of winding down operations and expects to complete the exit of the facility by December 2015. The Company estimates that the closure will result in restructuring charges in the range of $1,000,000 to $1,500,000, primarily due to severance costs.

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WORTHINGTON INDUSTRIES, INC. AND SUBSIDIARIES

SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS

COL. A.	COL. B.		COL. C.				COL. D.		COL. E.
Description			Additions
	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts – Describe (A)		Deductions – Describe (B)		Balance at End of Period
Year Ended May 31, 2015: Deducted from asset accounts: Allowance for possible losses on trade accounts receivable	$	3,043,000	$	259,000	$	-	$	217,000	$	3,085,000
Year Ended May 31, 2014: Deducted from asset accounts: Allowance for possible losses on trade accounts receivable	$	3,408,000	$	32,000	$	-	$	397,000	$	3,043,000
Year Ended May 31, 2013: Deducted from asset accounts: Allowance for possible losses on trade accounts receivable	$	3,329,000	$	783,000	$	26,000	$	730,000	$	3,408,000

Note A – Miscellaneous amounts.

Note B – Uncollectable accounts charged to the allowance.

See accompanying Report of Independent Registered Public Accounting Firm.

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Item 9. – Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

Not applicable.

Item 9A. – Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures [as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)] that are designed to provide reasonable assurance that information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and our principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Management, with the participation of our principal executive officer and our principal financial officer, performed an evaluation of the effectiveness of our disclosure controls and procedures as of the end of the fiscal year covered by this Annual Report on Form 10-K (the fiscal year ended May 31, 2015). Based on that evaluation, our principal executive officer and our principal financial officer have concluded that such disclosure controls and procedures were effective at a reasonable assurance level as of the end of the fiscal year covered by this Annual Report on Form 10-K.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting that occurred in the last fiscal quarter (the fiscal quarter ended May 31, 2015) that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Annual Report of Management on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting to provide reasonable assurance regarding the reliability of our financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States. Internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of Worthington Industries, Inc. and our consolidated subsidiaries; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with accounting principles generally accepted in the United States, and that receipts and expenditures of Worthington Industries, Inc. and our consolidated subsidiaries are being made only in accordance with authorizations of management and directors of Worthington Industries, Inc. and our consolidated subsidiaries, as appropriate; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the assets of Worthington Industries, Inc. and our consolidated subsidiaries that could have a material effect on the financial statements.

Management, with the participation of our principal executive officer and our principal financial officer, evaluated the effectiveness of our internal control over financial reporting as of May 31, 2015, the end of our fiscal year. Management based its assessment on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Management’s assessment included evaluation of such elements as the design and operating effectiveness of key controls over financial reporting, process documentation, accounting policies and our overall control environment. This assessment is supported by testing and monitoring performed under the direction of management.

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Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Accordingly, even an effective system of internal control over financial reporting will provide only reasonable assurance with respect to financial statement preparation.

Based on the assessment of our internal control over financial reporting, management has concluded that our internal control over financial reporting was effective at a reasonable assurance level as of May 31, 2015. The results of management’s assessment were reviewed with the Audit Committee of the Board of Directors of Worthington Industries, Inc.

Additionally, our independent registered public accounting firm, KPMG LLP, independently assessed the effectiveness of our internal control over financial reporting and issued the accompanying Report of Independent Registered Public Accounting Firm.

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Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders

Worthington Industries, Inc.:

We have audited Worthington Industries, Inc.’s internal control over financial reporting as of May 31, 2015, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Worthington Industries, Inc.’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Annual Report of Management on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Worthington Industries, Inc. maintained, in all material respects, effective internal control over financial reporting as of May 31, 2015, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Worthington Industries, Inc. and subsidiaries as of May 31, 2015 and 2014, and the related consolidated statements of earnings, comprehensive income, equity, and cash flows for each of the years in the three-year period ended May 31, 2015, and our report dated July 30, 2015, expressed an unqualified opinion on those consolidated financial statements.

/s/ KPMG LLP

Columbus, Ohio

July 30, 2015

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Item 9B. – Other Information

There is nothing to be reported under this Item 9B.

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PART III

Item 10. – Directors, Executive Officers and Corporate Governance

Directors, Executive Officers and Persons Nominated or Chosen to Become Directors or Executive Officers

The information required by Item 401 of SEC Regulation S-K concerning the directors of Worthington Industries, Inc. (“Worthington Industries” or the “Registrant”) and the nominees for re-election as directors of Worthington Industries at the Annual Meeting of Shareholders to be held on September 24, 2015 (the “2015 Annual Meeting”) is incorporated herein by reference from the disclosure to be included under the caption “PROPOSAL 1: ELECTION OF DIRECTORS” in Worthington Industries’ definitive Proxy Statement relating to the 2015 Annual Meeting (“Worthington Industries’ Definitive 2015 Proxy Statement”), which will be filed pursuant to SEC Regulation 14A not later than 120 days after the end of Worthington Industries’ fiscal 2015 (the fiscal year ended May 31, 2015).

The information required by Item 401 of SEC Regulation S-K concerning the executive officers of Worthington Industries is incorporated herein by reference from the disclosure included under the caption “Supplemental Item – Executive Officers of the Registrant” in Part I of this Annual Report on Form 10-K.

Compliance with Section 16(a) of the Exchange Act

The information required by Item 405 of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the caption “SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT – Section 16(a) Beneficial Ownership Reporting Compliance” in Worthington Industries’ Definitive 2015 Proxy Statement.

Procedures by which Shareholders may Recommend Nominees to Worthington Industries’ Board of Directors

Information concerning the procedures by which shareholders of Worthington Industries may recommend nominees to Worthington Industries’ Board of Directors is incorporated herein by reference from the disclosure to be included under the captions “PROPOSAL 1: ELECTION OF DIRECTORS – Committees of the Board – Nominating and Governance Committee” and “CORPORATE GOVERNANCE – Nominating Procedures” in Worthington Industries’ Definitive 2015 Proxy Statement. These procedures have not materially changed from those described in Worthington Industries’ definitive Proxy Statement for the 2014 Annual Meeting of Shareholders held on September 25, 2014.

Audit Committee Matters

The information required by Items 407(d)(4) and 407(d)(5) of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the caption “PROPOSAL 1: ELECTION OF DIRECTORS – Committees of the Board – Audit Committee” in Worthington Industries’ Definitive 2015 Proxy Statement.

Code of Conduct; Committee Charters; Corporate Governance Guidelines; Charter of Lead Independent Director

Worthington Industries’ Board of Directors has adopted Charters for each of the Audit Committee, the Compensation and Stock Option Committee, the Executive Committee and the Nominating and Governance Committee as well as Corporate Governance Guidelines as contemplated by the applicable sections of the New York Stock Exchange Listed Company Manual. Worthington Industries’ Board of Directors has also adopted a Charter of the Lead Independent Director of Worthington Industries’ Board of Directors.

In accordance with the requirements of Section 303A.10 of the New York Stock Exchange Listed Company Manual, the Board of Directors of Worthington Industries has adopted a Code of Conduct covering

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the directors, officers and employees of Worthington Industries and its subsidiaries, including Worthington Industries’ Chairman of the Board and Chief Executive Officer (the principal executive officer), Worthington Industries’ Executive Vice President and Chief Financial Officer (the principal financial officer) and Worthington Industries’ Controller (the principal accounting officer). The Registrant will disclose the following events, if they occur, in a current report on Form 8-K to be filed with the SEC within the required four business days following their occurrence: (A) the date and nature of any amendment to a provision of Worthington Industries’ Code of Conduct that (i) applies to Worthington Industries’ principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, (ii) relates to any element of the “code of ethics” definition enumerated in Item 406(b) of SEC Regulation S-K, and (iii) is not a technical, administrative or other non-substantive amendment; and (B) a description of any waiver (including the nature of the waiver, the name of the person to whom the waiver was granted and the date of the waiver), including an implicit waiver, from a provision of the Code of Conduct granted to Worthington Industries’ principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, that relates to one or more of the elements of the “code of ethics” definition set forth in Item 406(b) of SEC Regulation S-K. In addition, Worthington Industries will disclose any waivers from the provisions of the Code of Conduct granted to a director or an executive officer of Worthington Industries in a current report on Form 8-K to be filed with the SEC within the required four business days following their occurrence.

The text of each of the Charter of the Audit Committee, the Charter of the Compensation and Stock Option Committee, the Charter of the Executive Committee, the Charter of the Nominating and Governance Committee, the Charter of the Lead Independent Director, the Corporate Governance Guidelines and the Code of Conduct is posted on the “Corporate Governance” page of the “Investor Center” section of Worthington Industries’ web site located at www.worthingtonindustries.com. In addition, a copy of the Code of Conduct was filed as Exhibit 14 to Worthington Industries’ Annual Report on Form 10-K for the fiscal year ended May 31, 2012.

Item 11. – Executive Compensation

The information required by Item 402 of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the captions “SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT,” “EXECUTIVE COMPENSATION” and “COMPENSATION OF DIRECTORS” in Worthington Industries’ Definitive 2015 Proxy Statement.

The information required by Item 407(e)(4) of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the caption “CORPORATE GOVERNANCE – Compensation Committee Interlocks and Insider Participation” in Worthington Industries’ Definitive 2015 Proxy Statement.

The information required by Item 407(e)(5) of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the caption “EXECUTIVE COMPENSATION – Compensation Committee Report” in Worthington Industries’ Definitive 2015 Proxy Statement.

Item 12. – Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Ownership of Common Shares of Worthington Industries

The information required by Item 403 of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the caption “SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT” in Worthington Industries’ Definitive 2015 Proxy Statement.

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Equity Compensation Plan Information

The information required by Item 201(d) of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the caption “EQUITY COMPENSATION PLAN INFORMATION” in Worthington Industries’ Definitive 2015 Proxy Statement.

Item 13. – Certain Relationships and Related Transactions, and Director Independence

Certain Relationships and Related Person Transactions

The information required by Item 404 of SEC Regulation S-K is incorporated herein by reference from the disclosure in respect of John P. McConnell to be included under the caption “SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT” and from the disclosure to be included under the caption “TRANSACTIONS WITH CERTAIN RELATED PERSONS” in Worthington Industries’ Definitive 2015 Proxy Statement.

Director Independence

The information required by Item 407(a) of SEC Regulation S-K is incorporated herein by reference from the disclosure to be included under the captions “CORPORATE GOVERNANCE – Director Independence” and “TRANSACTIONS WITH CERTAIN RELATED PERSONS” in Worthington Industries’ Definitive 2015 Proxy Statement.

Item 14. – Principal Accountant Fees and Services

The information required by this Item 14 is incorporated herein by reference from the disclosure to be included under the captions “AUDIT COMMITTEE MATTERS – Independent Registered Public Accounting Firm Fees” and “AUDIT COMMITTEE MATTERS – Pre-Approval of Services Performed by the Independent Registered Public Accounting Firm” in Worthington Industries’ Definitive 2015 Proxy Statement.

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PART IV

Item 15. – Exhibits and Financial Statement Schedules

(a) The following documents are filed as a part of this Annual Report on Form 10-K:

(1) Consolidated Financial Statements:

The consolidated financial statements (and report thereon) listed below are filed as a part of this Annual Report on Form 10-K:

Report of Independent Registered Public Accounting Firm (KPMG LLP)

Consolidated Balance Sheets as of May 31, 2015 and 2014

Consolidated Statements of Earnings for the fiscal years ended May 31, 2015, 2014 and 2013

Consolidated Statements of Comprehensive Income for the fiscal years ended May 31, 2015, 2014 and 2013

Consolidated Statements of Equity for the fiscal years ended May 31, 2015, 2014 and 2013

Consolidated Statements of Cash Flows for the fiscal years ended May 31, 2015, 2014 and 2013

Notes to Consolidated Financial Statements – fiscal years ended May 31, 2015, 2014 and 2013

(2) Financial Statement Schedule:

Schedule II – Valuation and Qualifying Accounts

All other financial statement schedules for which provision is made in the applicable accounting regulations of the SEC are omitted because they are not required or the required information has been presented in the aforementioned consolidated financial statements or notes thereto.

(3) Listing of Exhibits:

The exhibits listed on the “Index to Exhibits” beginning on page E-1 of this Annual Report on Form 10-K are included with this Annual Report on Form 10-K or incorporated in this Annual Report on Form 10-K by reference as noted in the “Index to Exhibits.” The “Index to Exhibits” specifically identifies each management contract or compensatory plan or arrangement required to be included as an exhibit to this Annual Report on Form 10-K or incorporated in this Annual Report on Form 10-K by reference.

(b) Exhibits: The exhibits listed on the “Index to Exhibits” beginning on page E-1 of this Annual Report on Form 10-K are included with this Annual Report on Form 10-K or incorporated in this Annual Report on Form 10-K by reference as noted in the “Index to Exhibits.”

(c) Financial Statement Schedule: The financial statement schedule listed in Item 15(a)(2) above is filed with this Annual Report on Form 10-K.

124

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	WORTHINGTON INDUSTRIES, INC.
Date: July 30, 2015	By:	/s/ JOHN P. MCCONNELL
		John P. McConnell,
		Chairman of the Board and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the date indicated.

SIGNATURE	DATE	TITLE
/s/ John P. McConnell John P. McConnell	July 30, 2015	Director, Chairman of the Board and Chief Executive Officer (Principal Executive Officer)
/s/ B. Andrew Rose B. Andrew Rose	July 30, 2015	Executive Vice President and Chief Financial Officer (Principal Financial Officer)
/s/ Richard G. Welch Richard G. Welch	July 30, 2015	Controller (Principal Accounting Officer)
* Kerrii B. Anderson	*	Director
* John B. Blystone	*	Director
* Mark C. Davis	*	Director
* Michael J. Endres	*	Director
* Ozey K. Horton, Jr.	*	Director
* Peter Karmanos, Jr.	*	Director
* Carl A. Nelson, Jr.	*	Director
* Sidney A. Ribeau	*	Director
* Mary Schiavo	*	Director

*The undersigned, by signing his name hereto, does hereby sign this report on behalf of each of the above-identified directors of the Registrant pursuant to powers of attorney executed by such directors, which powers of attorney are filed with this report within Exhibit 24.

*By:	/s/ John P. McConnell	Date: July 30, 2015
	John P. McConnell
	Attorney-In-Fact

125

INDEX TO EXHIBITS

Exhibit	Description	Location
3.1	Amended Articles of Incorporation of Worthington Industries, Inc., as filed with the Ohio Secretary of State on October 13, 1998	Incorporated herein by reference to Exhibit 3(a) to the Quarterly Report on Form 10-Q of Worthington Industries, Inc., an Ohio corporation (the “Registrant”), for the quarterly period ended August 31, 1998 (SEC File No. 0-4016)
3.2	Code of Regulations of Worthington Industries, Inc. (reflecting all amendments) [for SEC reporting compliance purposes only]	Incorporated herein by reference to Exhibit 3(b) to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2000 (SEC File No. 1-8399)
4.1	Amended and Restated Credit Agreement, dated as of April 23, 2015, among Worthington Industries, Inc., as a Borrower; Worthington Industries International S.à.r.l., as a Borrower; PNC Bank, National Association, as a Lender, the Swingline Lender, an Issuing Bank and Administrative Agent; JPMorgan Chase Bank, N.A., as a Lender, an Issuing Bank and Syndication Agent; Bank of America, N.A.; U.S. Bank National Association; Wells Fargo Bank, National Association; Branch Banking and Trust Company; Fifth Third Bank; The Huntington National Bank; The Northern Trust Company; and Credit Suisse AG, Cayman Islands Branch, as Lenders (collectively with PNC Bank, National Association and JPMorgan Chase Bank, N.A., the “Lenders”); and Citizens Bank of Pennsylvania, as a Departing Lender; with Bank of America, N.A., U.S. Bank National Association and Wells Fargo Bank, National Association serving as Co-Documentation Agents; and J.P. Morgan Securities LLC and PNC Capital Markets LLC serving as Joint Bookrunners and Joint Lead Arrangers	Incorporated herein by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K dated April 28, 2015 and filed with the SEC on the same date (SEC File No. 1-8399)
4.2	Indenture, dated as of April 13, 2010, between Worthington Industries, Inc. and U.S. Bank National Association, as Trustee	Incorporated herein by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K dated April 13, 2010 and filed with the SEC on the same date (SEC File No. 1-8399)
4.3	First Supplemental Indenture, dated as of April 13, 2010, between Worthington Industries, Inc. and U.S. Bank National Association, as Trustee	Incorporated herein by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K dated April 13, 2010 and filed with the SEC on the same date (SEC File No. 1-8399)
4.4	Form of 6.50% Global Note due April 15, 2020 (included as Exhibit A in Exhibit 4.3 to this Annual Report on Form 10-K)	Incorporated herein by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K dated April 13, 2010 and filed with the SEC on the same date (SEC File No. 1-8399)

E-1

4.5	Second Supplemental Indenture, dated as of April 15, 2014, between Worthington Industries, Inc. and U.S. Bank National Association, as Trustee	Incorporated herein by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K dated April 15, 2014 and filed with the SEC on the same date (SEC File No. 1-8399)
4.6	Form of 4.55% Global Note due April 15, 2026 (included as Exhibit A in Exhibit 4.5 to this Annual Report on Form 10-K)	Incorporated herein by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K dated April 15, 2014 and filed with the SEC on the same date (SEC File No. 1-8399)
4.7	Note Agreement, dated as of August 10, 2012, between Worthington Industries, Inc. and The Prudential Insurance Company of America, Pruco Life Insurance Company of New Jersey, Pruco Life Insurance Company, Prudential Arizona Reinsurance Universal Company, Prudential Annuities Life Assurance Corporation, The Prudential Life Insurance Company, Ltd. and The Gibraltar Life Insurance Co., Ltd.	Incorporated herein by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K dated August 15, 2012 and filed with the SEC on the same date (SEC File No. 1-8399)
4.8	Form of 4.60% Senior Note due August 10, 2024 (included as Exhibit A in Exhibit 4.7 to this Annual Report on Form 10-K)	Incorporated herein by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K dated August 15, 2012 and filed with the SEC on the same date (SEC File No. 1-8399)
4.9	Amendment No. 1 to Note Agreement, dated June 10, 2015, among Worthington Industries, Inc., on the one hand, and The Prudential Insurance Company of America, Pruco Life Insurance Company of New Jersey, Pruco Life Insurance Company, Prudential Arizona Reinsurance Universal Company, Prudential Annuities Life Assurance Corporation, The Prudential Life Insurance Company, Ltd. and The Gibraltar Life Insurance Co., Ltd., on the other hand	Filed herewith
4.10	Agreement to furnish instruments and agreements defining rights of holders of long-term debt	Filed herewith
10.1	Worthington Industries, Inc. Non-Qualified Deferred Compensation Plan effective March 1, 2000*	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2005 (SEC File No. 1-8399)
10.2	Amendment to the Worthington Industries, Inc. Non-Qualified Deferred Compensation Plan (Amendment effective as of September 1, 2011)*	Incorporated herein by reference to Exhibit 10.8 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2011 (SEC File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-2

10.3	Second Amendment to the Worthington Industries, Inc. Non-Qualified Deferred Compensation Plan (Second Amendment effective as of October 1, 2014)*	Incorporated herein by reference to Exhibit 10.3 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2014 (SEC File No. 1-8399)
10.4	Worthington Industries, Inc. Amended and Restated 2005 Non-Qualified Deferred Compensation Plan (Restatement effective December 2008)*	Incorporated herein by reference to Exhibit 10.10 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended November 30, 2008 (SEC File No. 1-8399)
10.5	First Amendment to the Worthington Industries, Inc. Amended and Restated 2005 Non-Qualified Deferred Compensation Plan (First Amendment effective as of September 1, 2011)*	Incorporated herein by reference to Exhibit 10.9 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2011 (SEC File No. 1-8399)
10.6	Second Amendment to the Worthington Industries, Inc. Amended and Restated 2005 Non-Qualified Deferred Compensation Plan (Second Amendment effective as of October 1, 2014)*	Incorporated herein by reference to Exhibit 10.6 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2014 (SEC File No. 1-8399)
10.7	Worthington Industries, Inc. Deferred Compensation Plan for Directors, as Amended and Restated, effective June 1, 2000*	Incorporated herein by reference to Exhibit 10(d) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2000 (SEC File No. 1-8399)
10.8	Amendment to the Worthington Industries, Inc. Deferred Compensation Plan for Directors, as Amended and Restated, effective June 1, 2000 (Amendment effective as of September 1, 2011)*	Incorporated herein by reference to Exhibit 10.10 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2011 (SEC File No. 1-8399)
10.9	Second Amendment to the Worthington Industries, Inc. Deferred Compensation Plan for Directors, as Amended and Restated (Second Amendment effective as of October 1, 2014)*	Incorporated herein by reference to Exhibit 10.9 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2014 (SEC File No. 1-8399)
10.10	Worthington Industries, Inc. Amended and Restated 2005 Deferred Compensation Plan for Directors (Restatement effective as of December 2008)*	Incorporated herein by reference to Exhibit 10.5 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended November 30, 2008 (SEC File No. 1-8399)
10.11	First Amendment to the Worthington Industries, Inc. Amended and Restated 2005 Deferred Compensation Plan for Directors (First Amendment effective as of September 1, 2011)*	Incorporated herein by reference to Exhibit 10.11 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2011 (SEC File No. 1-8399)
10.12	Second Amendment to the Worthington Industries, Inc. Amended and Restated 2005 Deferred Compensation Plan for Directors (Second Amendment effective as of October 1, 2014)*	Incorporated herein by reference to Exhibit 10.12 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2014 (SEC File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-3

10.13	Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan (amendment and restatement effective as of November 1, 2008)*	Incorporated herein by reference to Exhibit 10.8 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended November 30, 2008 (SEC File No. 1-8399)
10.14	First Amendment to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan (First Amendment effective as of June 26, 2013; performance goals approved by shareholders on September 26, 2013)*	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K dated October 1, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)
10.15	Second Amendment to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan (Second Amendment effective as of September 26, 2013)*	Incorporated herein by reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K dated October 1, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)
10.16	Form of Notice of Grant of Stock Options and Option Agreement for non-qualified stock options under the Worthington Industries, Inc. 1997 Long-Term Incentive Plan (now known as the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan)*	Incorporated herein by reference to Exhibit 10.7 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2010 (SEC File No. 1-8399)
10.17	Form of Restricted Stock Award Agreement under the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan entered into by Worthington Industries, Inc. prior to June 2013 in order to evidence the grant of restricted stock to employees of Worthington Industries, Inc.*	Incorporated herein by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended November 30, 2008 (SEC File No. 1-8399)
10.18	Form of Letter Evidencing Cash Performance Awards and Performance Share Awards Granted under the Worthington Industries, Inc. 1997 Long-Term Incentive Plan (now known as the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan) with targets for the three-fiscal-year periods ending on May 31, 2011, on May 31, 2012, on May 31, 2013 and on May 31, 2014*	Incorporated herein by reference to Exhibit 10.10 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2010 (SEC File No. 1-8399)
10.19	Form of Restricted Stock Award Agreement entered into by Worthington Industries, Inc. in order to evidence the grant for 2011 effective as of June 30, 2011, of restricted common shares, and similar form entered into by Worthington Industries, Inc. in order to evidence the grant for 2012 effective as of June 29, 2012, of restricted common shares, in each case which vested or will vest in three years from the grant date, pursuant to the	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K dated July 6, 2011 and filed with the SEC on the same date (SEC File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-4

	Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan*
10.20	Form of Letter Evidencing Performance Awards Granted and to be Granted under the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan with targets for three-fiscal-year periods ending on or after May 31, 2015*	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated July 2, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)
10.21	Form of Amended and Restated Restricted Stock Award Agreement entered into effective as of September 14, 2011 by Worthington Industries, Inc. with each of B. Andrew Rose and Mark A. Russell in order to amend and restate the original Restricted Stock Award Agreement effective as of June 30, 2011 in respect of 185,000 common shares granted pursuant to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan*	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated September 20, 2011 and filed with the SEC on the same date (SEC File No. 1-8399)
10.22	Form of Notice of Grant and Restricted Stock Award Agreement entered into by Worthington Industries, Inc. in order to evidence the grant for 2013, effective as of June 28, 2013, of restricted common shares, which will vest on the third anniversary of the grant date, pursuant to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan*	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K dated July 2, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)
10.23	Form of Notice of Grant and Restricted Stock Award Agreement entered into by Worthington Industries, Inc. with each of B. Andrew Rose and Mark A. Russell in order to evidence the grant, effective as of June 28, 2013, of 180,000 performance-based restricted common shares pursuant to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan*	Incorporated herein by reference to Exhibit 10.4 to the Registrant’s Current Report on Form 8-K dated July 2, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)
10.24	Form of Restricted Stock Award Agreement for awards granted after June 1, 2014 entered into by Worthington Industries, Inc. in order to evidence the grant, effective as of June 30, 2014, as well as future grants of restricted common shares, in each case which will vest on the third anniversary of the grant date, subject to the terms thereof and of the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan*	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated July 1, 2014 and filed with the SEC on the same date (SEC File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-5

10.25	Form of Restricted Stock Award Agreement entered into by Worthington Industries, Inc. with each of Geoffrey G. Gilmore and Andrew J. Billman, in order to evidence the grant, effective June 24, 2014, of 25,000 performance-based restricted common shares pursuant to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan*	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K dated July 1, 2014 and filed with the SEC on the same date (SEC File No. 1-8399)
10.26	Worthington Industries, Inc. Amended and Restated 2000 Stock Option Plan for Non-Employee Directors (amendment and restatement effective as of November 1, 2008)*	Incorporated herein by reference to Exhibit 10.7 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended November 30, 2008 (SEC File No. 1-8399)
10.27	Form of Non-Qualified Stock Option Agreement for Non-Employee Directors for non-qualified stock options granted under the Worthington Industries, Inc. 2000 Stock Option Plan for Non-Employee Directors (now known as the Worthington Industries, Inc. Amended and Restated 2000 Stock Option Plan for Non-Employee Directors) from September 25, 2003 until September 29, 2005*	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2004 (SEC File No. 1-8399)
10.28	Worthington Industries, Inc. Amended and Restated 2003 Stock Option Plan (amendment and restatement effective November 1, 2008)*	Incorporated herein by reference to Exhibit 10.6 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended November 30, 2008 (SEC File No. 1-8399)
10.29	First Amendment to the Worthington Industries, Inc. Amended and Restated 2003 Stock Option Plan (First Amendment effective September 26, 2013)*	Incorporated herein by reference to Exhibit 10.6 to the Registrant’s Current Report on Form 8-K dated October 1, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)
10.30	Form of Notice of Grant of Stock Options and Option Agreement for non-qualified stock options granted under the Worthington Industries, Inc. 2003 Stock Option Plan (now known as the Worthington Industries, Inc. Amended and Restated 2003 Stock Option Plan)*	Incorporated herein by reference to Exhibit 10.14 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2010 (SEC File No. 1-8399)
10.31	Worthington Industries, Inc. Amended and Restated 2006 Equity Incentive Plan for Non-Employee Directors (amendment and restatement effective as of November 1, 2008)*	Incorporated herein by reference to Exhibit 10.9 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended November 30, 2008 (SEC File No. 1-8399)
10.32	First Amendment to the Worthington Industries, Inc. Amended and Restated 2006 Equity Incentive Plan for Non-Employee Directors (amendment and restatement effective as of November 1, 2008) (First Amendment approved by shareholders on September 29, 2011)*	Incorporated herein by reference to Exhibit 10.22 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2012 (SEC File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-6

10.33	Form of Nonqualified Stock Option Award Agreement under the Worthington Industries, Inc. 2006 Equity Incentive Plan for Non-Employee Directors (now known as the Worthington Industries, Inc. Amended and Restated 2006 Equity Incentive Plan for Non-Employee Directors) entered into by Worthington Industries, Inc. in order to evidence the grant of nonqualified stock options to non-employee directors of Worthington Industries, Inc. on September 27, 2006 and September 26, 2007*	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K dated October 2, 2006 and filed with the SEC on the same date (SEC File No. 1-8399)
10.34	Form of Notice of Grant of Stock Options and Option Agreement under the Worthington Industries, Inc. 2006 Equity Incentive Plan for Non-Employee Directors (now known as the Worthington Industries, Inc. Amended and Restated 2006 Equity Incentive Plan for Non-Employee Directors) to evidence the grant of non-qualified stock options to non-employee directors of Worthington Industries, Inc. on and after September 24, 2008*	Incorporated herein by reference to Exhibit 10.17 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2010 (SEC File No. 1-8399)
10.35	Form of Restricted Stock Award Agreement under the Worthington Industries, Inc. 2006 Equity Incentive Plan for Non-Employee Directors (now known as the Worthington Industries, Inc. Amended and Restated 2006 Equity Incentive Plan for Non-Employee Directors) entered into by Worthington Industries, Inc. in order to evidence the grant of restricted stock to non-employee directors of Worthington Industries, Inc. on September 24, 2008 and to be entered into by Worthington Industries, Inc. in order to evidence future grants of restricted stock to non-employee directors of Worthington Industries, Inc.*	Incorporated herein by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2008 (SEC File No. 1-8399)
10.36	Worthington Industries, Inc. 2010 Stock Option Plan*	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated October 5, 2010 and filed with the SEC on the same date (SEC File No. 1-8399)
10.37	First Amendment to the Worthington Industries, Inc. 2010 Stock Option Plan (First Amendment effective September 26, 2013)*	Incorporated herein by reference to Exhibit 10.7 to the Registrant’s Current Report on Form 8-K dated October 1, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-7

10.38	Form of Non-Qualified Stock Option Award Agreement entered into by Worthington Industries, Inc. in order to evidence the grant of non-qualified stock options to executive officers of Worthington Industries, Inc. effective as of June 30, 2011 pursuant to the Worthington Industries, Inc. 2010 Stock Option Plan and to be entered into by Worthington Industries, Inc. in order to evidence future grants of non-qualified stock options to executive officers pursuant to the Worthington Industries, Inc. 2010 Stock Option Plan*	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated July 6, 2011 and filed with the SEC on the same date (SEC File No. 1-8399)
10.39	Worthington Industries, Inc. Annual Incentive Plan for Executives*	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K dated September 30, 2008 and filed with the SEC on the same date (SEC File No. 1-8399)
10.40	First Amendment to the Worthington Industries, Inc. Annual Incentive Plan for Executives (approved by shareholders on September 26, 2013)*	Incorporated herein by reference to Exhibit 10.5 to the Registrant’s Current Report on Form 8-K dated October 1, 2013 and filed with the SEC on the same date (SEC File No. 1-8399)
10.41	Form of Letter Evidencing Cash Performance Bonus Awards Granted and to be Granted under the Worthington Industries, Inc. Annual Incentive Plan for Executives (sometimes also referred to as the Worthington Industries, Inc. Annual Short Term Incentive Plan)*	Incorporated herein by reference to Exhibit 10.42 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2014 (SEC File No. 1-8399)
10.42	Receivables Purchase Agreement, dated as of November 30, 2000, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, members of various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10(h)(i) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2001 (SEC File No. 1-8399)
10.43	Amendment No. 1 to Receivables Purchase Agreement, dated as of May 18, 2001, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, members of various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10(h)(ii) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2001 (SEC File No. 1-8399)
10.44	Amendment No. 2 to Receivables Purchase Agreement, dated as of May 31, 2004, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, members of various purchaser groups from	Incorporated herein by reference to Exhibit 10(g)(x) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2004 (File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-8

	time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator
10.45	Amendment No. 3 to Receivables Purchase Agreement, dated as of January 27, 2005, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.15 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2005 (SEC File No. 1-8399)
10.46	Amendment No. 4 to Receivables Purchase Agreement, dated as of January 25, 2008, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.20 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2008 (SEC File No. 1-8399)
10.47	Amendment No. 5 to Receivables Purchase Agreement, dated as of January 22, 2009, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2009 (SEC File No. 1-8399)
10.48	Amendment No. 6 to Receivables Purchase Agreement, dated as of April 30, 2009, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.30 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2009 (SEC File No. 1-8399)
10.49	Amendment No. 7 to Receivables Purchase Agreement, dated as of January 21, 2010, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2010 (SEC File No. 1-8399)
10.50	Amendment No. 8 to Receivables Purchase Agreement, dated as of April 16, 2010, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.30 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2010 (SEC File No. 1-8399)

E-9

10.51	Amendment No. 9 to Receivables Purchase Agreement, dated as of January 20, 2011, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2011 (SEC File No. 1-8399)
10.52	Amendment No. 10 to Receivables Purchase Agreement, dated as of February 28, 2011, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2011 (SEC File No. 1-8399)
10.53	Amendment No. 11 to Receivables Purchase Agreement, dated as of May 6, 2011, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.36 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2011 (SEC File No. 1-8399)
10.54	Amendment No. 12 to Receivables Purchase Agreement, dated as of January 19, 2012, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 29, 2012 (SEC File No. 1-8399)
10.55	Amendment No. 13 to Receivables Purchase Agreement, dated as of January 18, 2013, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2013 (SEC File No. 1-8399)
10.56	Amendment No. 14 to Receivables Purchase Agreement, dated as of July 15, 2013, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.48 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2013 (SEC File No. 1-8399)

E-10

10.57	Amendment No. 15 to Receivables Purchase Agreement, dated as of October 11, 2013, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Filed herewith
10.58	Amendment No. 16 to Receivables Purchase Agreement, dated as of May 23, 2014, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Filed herewith
10.59	Amendment No. 17 to Receivables Purchase Agreement, dated as of January 16, 2015, among Worthington Receivables Corporation, as Seller, Worthington Industries, Inc., as Servicer, the members of the various purchaser groups from time to time party to the Receivables Purchase Agreement and PNC Bank, National Association, as Administrator	Incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2015 (SEC File No. 1-8399)
10.60	Purchase and Sale Agreement, dated as of November 30, 2000, between the various originators listed therein and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10(h)(iii) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2001 (SEC File No. 1-8399)
10.61	Amendment No. 1, dated as of May 18, 2001, to Purchase and Sale Agreement, dated as of November 30, 2000, between the various originators listed therein and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10(h)(iv) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2001 (File No. 1-8399)
10.62	Amendment No. 2, dated as of August 25, 2006, to Purchase and Sale Agreement, dated as of November 30, 2000, between the various originators listed therein and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10.5 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended August 31, 2006 (SEC File No. 1-8399)
10.63	Amendment No. 3, dated as of October 1, 2008, to Purchase and Sale Agreement, dated as of November 30, 2000, among the various originators listed therein, Worthington Taylor, Inc. and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2011 (SEC File No. 1-8399)
10.64	Amendment No. 4, dated as of February 28, 2011, to Purchase and Sale Agreement, dated as of November 30, 2000, among the various originators listed therein, Dietrich Industries, Inc. and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2011 (SEC File No. 1-8399)

E-11

10.65	Amendment No. 5, dated as of May 6, 2011, to Purchase and Sale Agreement, dated as of November 30, 2000, among the various originators listed therein, The Gerstenslager Company and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10.42 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2011 (SEC File No. 1-8399)
10.66	Amendment No. 6, dated as of January 19, 2012, to Purchase and Sale Agreement, dated as of November 30, 2000, among the various originators listed therein and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 29, 2012 (SEC File No. 1-8399)
10.67	Amendment No. 7, dated as of January 16, 2015, to Purchase and Sale Agreement, dated as of November 30, 2000, among the various originators listed therein, Advanced Component Technologies, Inc., Worthington Cylinders Mississippi, LLC, Worthington Steel of Kentucky, L.L.C., The Worthington Steel Company (North Carolina), and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2015 (SEC File No. 1-8399)
10.68	Amendment No. 8, dated as of February 18, 2015, to Purchase and Sale Agreement, dated as of November 30, 2000, among the various originators listed therein and Worthington Receivables Corporation	Incorporated herein by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarterly period ended February 28, 2015 (SEC File No. 1-8399)
10.69	Summary of Annual Base Salaries Approved for Named Executive Officers of Worthington Industries, Inc.*	Filed herewith
10.70	Summary of Annual Cash Performance Bonus Awards, Long-Term Performance Awards, Stock Options and Restricted Shares granted in Fiscal 2012 for Named Executive Officers*	Incorporated herein by reference to Exhibit 10.47 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2011 (SEC File No. 1-8399)
10.71	Summary of Annual Cash Incentive Bonus Awards, Long-Term Performance Awards, Stock Options and Restricted Common Shares granted in Fiscal 2013 for Named Executive Officers*	Incorporated herein by reference to Exhibit 10.56 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2012 (SEC File No. 1-8399)
10.72	Summary of Annual Cash Incentive Bonus Awards, Long-Term Performance Awards, Stock Options and Restricted Common Shares granted in Fiscal 2014 for Named Executive Officers*	Incorporated herein by reference to Exhibit 10.62 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2013 (SEC File No. 1-8399)
10.73	Summary of Annual Cash Incentive Bonus Awards, Long-Term Performance Awards, Stock Options and Restricted Common Shares granted in Fiscal 2015 for Named Executive Officers*	Incorporated herein by reference to Exhibit 10.71 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2014 (SEC File No. 1-8399)

* Indicates management contract or compensatory plan or arrangement.

E-12

10.74	Summary of Annual Cash Incentive Bonus Awards, Long-Term Performance Awards, Stock Options and Restricted Common Shares granted in Fiscal 2016 for Named Executive Officers*	Filed herewith
10.75	Form of Indemnification Agreement entered into between Worthington Industries, Inc. and each director of Worthington Industries, Inc.*	Incorporated herein by reference to Exhibit 10.32 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2008 (SEC File No. 1-8399)
10.76	Form of Indemnification Agreement entered into between Worthington Industries, Inc. and each executive officer of Worthington Industries, Inc.*	Incorporated herein by reference to Exhibit 10.33 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2008 (SEC File No. 1-8399)
14	Worthington Industries, Inc. Code of Conduct	Incorporated herein by reference to Exhibit 14 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended May 31, 2012 (SEC File No. 1-8399)
21	Subsidiaries of Worthington Industries, Inc.	Filed herewith
23.1	Consent of Independent Registered Public Accounting Firm (KPMG LLP)	Filed herewith
23.2	Consent of Independent Auditor (KPMG LLP) with respect to consolidated financial statements of Worthington Armstrong Venture	Filed herewith
24	Powers of Attorney of Directors and Executive Officers of Worthington Industries, Inc.	Filed herewith
31.1	Rule 13a - 14(a) / 15d - 14(a) Certifications (Principal Executive Officer)	Filed herewith
31.2	Rule 13a - 14(a) / 15d - 14(a) Certifications (Principal Financial Officer)	Filed herewith
32.1	Certifications of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Furnished herewith
32.2	Certifications of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Furnished herewith
99.1	Worthington Armstrong Venture Consolidated Financial Statements as of December 31, 2014 and 2013 and for the years ended December 31, 2014, 2013 and 2012	Filed herewith
101.INS	XBRL Instance Document	Submitted electronically herewith #
101.SCH	XBRL Taxonomy Extension Schema Document	Submitted electronically herewith #

* Indicates management contract or compensatory plan or arrangement.

E-13

101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document	Submitted electronically herewith #
101.DEF	XBRL Taxonomy Definition Linkbase Document	Submitted electronically herewith #
101.LAB	XBRL Taxonomy Extension Label Linkbase Document	Submitted electronically herewith #
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document	Submitted electronically herewith #

# Attached as Exhibit 101 to this Annual Report on Form 10-K for the fiscal year ended May 31, 2015 of Worthington Industries, Inc. are the following documents formatted in XBRL (eXtensible Business Reporting Language):

(i) Consolidated Balance Sheets at May 31, 2015 and 2014;

(ii) Consolidated Statements of Earnings for the fiscal years ended May 31, 2015, 2014 and 2013;

(iii) Consolidated Statements of Comprehensive Income for the fiscal years ended May 31, 2015, 2014 and 2013;

(iv) Consolidated Statements of Equity for the fiscal years ended May 31, 2015, 2014 and 2013;

(v) Consolidated Statements of Cash Flows for the fiscal years ended May 31, 2015, 2014 and 2013; and

(vi) Notes to Consolidated Financial Statements – fiscal years ended May 31, 2015, 2014 and 2013.

E-14

EX-4.9

Exhibit 4.9

EXECUTION VERSION

June 10, 2015

Worthington Industries, Inc.

200 Old Wilson Bridge Road

Columbus, Ohio 43085

Re:         Amendment No. 1 to Note Agreement

Ladies and Gentlemen:

This letter agreement (this “Letter”) makes reference to that certain Note Agreement, dated as of August 10, 2012 (the “Note Agreement”), among Worthington Industries, Inc., an Ohio corporation (the “Company”), on the one hand, and The Prudential Insurance Company of America, Pruco Life Insurance Company of New Jersey, Pruco Life Insurance Company, Prudential Arizona Reinsurance Universal Company, Prudential Annuities Life Assurance Corporation, The Prudential Life Insurance Company, Ltd., and The Gibraltar Life Insurance Co., Ltd., on the other hand. Capitalized terms used herein and not otherwise defined herein shall have the meanings assigned to such terms in the Note Agreement, as amended hereby.

The Company has requested that the holders of the Notes agree to certain modifications to the Note Agreement, as more particularly set forth below.

Subject to the terms and conditions hereof, the undersigned holders of the Notes are willing to agree to such request. Accordingly, and in accordance with the provisions of paragraph 11C of the Note Agreement, the parties hereto agree as follows:

SECTION 1. Amendments to the Note Agreement. Effective upon the Effective Date (as defined in Section 2 below) the Note Agreement is amended as follows:

1.1. Paragraph 5A(ii) of the Note Agreement is hereby amended by deleting the reference to “75 days” contained therein and inserting “90 days” in lieu thereof.

1.2. Paragraph 5J of the Note Agreement is hereby amended by amending and restating clause (i) thereof in its entirety to read as follows:

“(i) The Company covenants that, if at any time any Subsidiary is or becomes liable as a borrower, co-borrower, obligor or co-obligor under, or becomes obligated under a Guaranty Obligation with respect to, any Indebtedness or other obligation under the Primary Bank Facility (other than a Foreign Subsidiary to the extent such Foreign Subsidiary is only liable for such Foreign Subsidiary’s

Amendment No. 1 to Note Agreement 1

obligations thereunder and does not guarantee any obligations of the Company or any Domestic Subsidiary thereunder), the Company will, at the same time, cause such Subsidiary to deliver to the holders of the Notes a guaranty agreement in form and substance satisfactory to the Required Holder(s) (a “Guaranty Agreement”). Each such Guaranty Agreement shall be accompanied by a (a) certificate of the Secretary or Assistant Secretary of such Person certifying such Person’s charter and by-laws (or comparable governing documents), resolutions of the board of directors (or comparable governing body) of such Person authorizing the execution and delivery of such Guaranty Agreement (or joinder thereto) and incumbency and specimen signatures of the officers of such Person executing such documents and (b) a favorable opinion of counsel to the Company or such Person, in form and substance acceptable to the Required Holder(s). The delivery of such an agreement shall not in any way limit or modify the rights of the holders of the Notes to enforce the provisions of paragraph 6A.”

1.3. Paragraph 6A of the Note Agreement is hereby amended by (i) deleting the reference to “$20,000,000” contained in clause (iii) thereof and inserting “$30,000,000” in lieu thereof and (ii) amending and restating clause (vi) thereof in its entirety to read as follows:

“(vi) other Indebtedness of the Restricted Subsidiaries in an aggregate principal amount at any time outstanding not in excess of 10% of Consolidated Net Tangible Assets; provided that in no event shall the outstanding aggregate principal amount of Indebtedness of Foreign Subsidiaries under the Primary Bank Facility permitted pursuant to this clause (vi) at any time exceed $50,000,000.”

1.4. Paragraph 10B of the Note Agreement is hereby amended by adding or amending and restating in their entireties the following defined terms contained therein to read as follows or to add the following defined terms thereto, as applicable:

“Bankruptcy Event” shall mean (a), with respect to any Person, (i) a court or governmental agency having appropriate jurisdiction shall enter a decree or order for relief in respect of such Person in an involuntary case under any Debtor Relief Law now or hereafter in effect, or appoint a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of such Person or for any substantial part of its property or ordering the winding up or liquidation of its affairs, (ii) an involuntary case under any applicable Debtor Relief Law now or hereafter in effect is commenced against such Person and such petition remains unstayed and in effect for a period of 60 consecutive days, (iii) such Person shall commence a voluntary case under any applicable Debtor Relief Law now or hereafter in effect, or consent to the entry of an order for relief in an involuntary case under any such law, or consent to the appointment or taking possession by a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of such Person or any substantial part of its property or make any general assignment for the benefit of creditors or (iv) such Person shall admit in writing its inability to pay its debts generally as they become due or any definitive action shall be taken by such Person in preparation for any of the aforesaid and (b), specifically with

Amendment No. 1 to Note Agreement 2

respect to LuxCo and any other Person whose Center of Main Interest is in the Grand-Duchy of Luxembourg, in addition to any of the circumstances under (a), (i) the appointment of a liquidator, receiver, administrative receiver, administrator, compulsory manager, juge délégué, commissaire, juge-commissaire, liquidateur, curateur or other similar officer in respect of any such Person or (ii) any such Person being subject to bankruptcy (faillite), insolvency, voluntary or court ordered liquidation (liquidation volontaire ou judiciaire), composition with creditors (concordat préventif de faillite), suspension of payment (sursis de paiement) or controlled management (gestion contrôlée).

“Center of Main Interest” shall mean the place where the debtor conducts the administration of his interests on a regular basis pursuant to the Council Regulation (EC) No 1346/2000 of May 29, 2000 on insolvency proceedings, as amended.

“LuxCo” shall mean Worthington Industries International S.à r.l., a private limited liability company (société à responsabilité limitée) having its registered office at 2B, Ennert dem Bierg, L-5244 Sandweiler, Grand Duchy of Luxembourg, registered with the Luxembourg trade and companies register under number B 155530 and having a share capital of EUR58,818.

1.5. The definition of “Permitted Liens” contained in paragraph 10B of the Note Agreement is hereby amended by deleting the reference to “$40,000,000” contained in clause (j) thereof and inserting “$50,000,000” in lieu thereof.

SECTION 2. Effectiveness. The amendments in Section 1 of this Letter shall become effective on the date (the “Effective Date”) that each of the following conditions has been satisfied:

2.1. Documents. Each holder of a Note shall have received original counterparts of this Letter executed by the Company.

2.2. Representations. All representations set forth in Section 3 shall be true and correct as of the Effective Date.

2.3. Fees and Expenses. The Company shall have paid the reasonable fees, charges and disbursements of Schiff Hardin LLP, special counsel to the holders of Notes incurred in connection with this Letter.

2.4. Proceedings. All corporate and other proceedings taken or to be taken in connection with the transactions contemplated by this Letter shall be satisfactory to such holder of Notes and its counsel, and such holder shall have received all such counterpart originals or certified or other copies of such documents as they may reasonably request.

SECTION 3. Representations and Warranties. The Company represents and warrants to the holders of the Notes that, after giving effect hereto (a) the execution and delivery of this Letter has been duly authorized by all necessary corporate action on behalf of the Company and this Letter has been duly executed and delivered by a duly authorized officer of the Company, and all necessary or required consents to and approvals of this Letter have been obtained and are in full

Amendment No. 1 to Note Agreement 3

force and effect, (b) the representations and warranties set forth in paragraph 8 of the Note Agreement are true and correct as of the date of the execution and delivery of this Letter by the Company with the same effect as if made on such date (except to the extent such representations and warranties expressly refer to an earlier date, in which case they were true and correct as of such earlier date), and (c) no Default or Event of Default has occurred and is continuing on the date hereof.

SECTION 4. Reference to and Effect on Note Agreement. Upon the effectiveness of the amendments made in this Letter, each reference to the Note Agreement in any other document, instrument or agreement shall mean and be a reference to the Note Agreement as amended by this Letter. Except as specifically set forth in Section 1 hereof, the Note Agreement shall remain in full force and effect and is hereby ratified and confirmed in all respects. Except as specifically stated in Section 1 of this Letter, the execution, delivery and effectiveness of this Letter shall not (a) amend the Note Agreement, any Note or any other document relating thereto, (b) operate as a waiver of any right, power or remedy of the holder of any Note, or (c) constitute a waiver of, or consent to any departure from, any provision of the Note Agreement, any Note or any other document relating thereto at any time. The execution, delivery and effectiveness of this Letter shall not be construed as a course of dealing or other implication that any holder of the Notes has agreed to or is prepared to grant any amendment to, waiver of or consent under the Note Agreement, any Note or any other document relating thereto in the future, whether or not under similar circumstances.

SECTION 5. Expenses. The Company hereby confirms its obligations under the Note Agreement, whether or not the transactions hereby contemplated are consummated, to pay, promptly after request by the holders of the Notes all reasonable out-of-pocket costs and expenses, including attorneys’ fees and expenses, incurred by such holders in connection with this Letter or the transactions contemplated hereby, in enforcing any rights under this Letter, or in responding to any subpoena or other legal process or informal investigative demand issued in connection with this Letter or the transactions contemplated hereby. The obligations of the Company under this Section 5 shall survive transfer by any holder of any Note and payment of any Note.

SECTION 6. Governing Law. THIS LETTER SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, AND THE RIGHTS OF THE PARTIES UNDER THIS LETTER OR IN CONNECTION WITH ANY CLAIMS OR DISPUTES ARISING OUT OF OR RELATING TO THIS LETTER (WHETHER SOUNDING IN CONTRACT OR TORT) SHALL BE GOVERNED BY, THE LAW OF THE STATE OF NEW YORK (EXCLUDING ANY CONFLICTS OF LAW RULES WHICH WOULD OTHERWISE CAUSE THIS LETTER TO BE CONSTRUED OR ENFORCED IN ACCORDANCE WITH, OR THE RIGHTS OF THE PARTIES TO BE GOVERNED BY, THE LAWS OF ANY OTHER JURISDICTION).

SECTION 7. Counterparts; Section Titles. This Letter may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which when so executed and delivered shall be deemed to be an original and all of which taken together shall constitute but one and the same instrument. Delivery of an executed counterpart of a signature page to this Letter by facsimile or electronic transmission shall be effective as delivery of a

Amendment No. 1 to Note Agreement 4

manually executed counterpart of this Letter. The section titles contained in this Letter are and shall be without substance, meaning or content of any kind whatsoever and are not a part of the agreement between the parties hereto.

[remainder of page intentionally left blank; signature page follows]

Amendment No. 1 to Note Agreement 5

Very truly yours,
THE PRUDENTIAL INSURANCE COMPANY OF AMERICA
By:	/s/ Diana Carr
	Vice President
PRUCO LIFE INSURANCE COMPANY OF NEW JERSEY
PRUCO LIFE INSURANCE COMPANY
By:	/s/ Diana Carr
	Assistant Vice President
PRUDENTIAL ARIZONA REINSURANCE UNIVERSAL COMPANY
PRUDENTIAL ANNUITIES LIFE ASSURANCE CORPORATION
By:	Prudential Investment Management, Inc.
	(as Investment manager)
	By:	/s/ Diana Carr
		Vice President
THE PRUDENTIAL LIFE INSURANCE COMPANY, LTD.
THE GIBRALTAR LIFE INSURANCE CO., LTD.
By: Prudential Investment Management (Japan), Inc. (as Investment Manager)
By: Prudential Investment Management, Inc. (as Sub-Adviser)
	By:	/s/ Diana Carr
		Vice President

Amendment No. 1 to Note Agreement

THE LETTER IS AGREED TO AND ACCEPTED BY:
WORTHINGTON INDUSTRIES, INC.
By:	/s/ Marcus Rogier
Name: Marcus Rogier
Title: Treasurer

Amendment No. 1 to Note Agreement

EX-4.10

Exhibit 4.10

July 30, 2015

Securities and Exchange Commission

100 F Street, NE

Washington, D.C. 20549

Re: Worthington Industries, Inc. – Annual Report on Form 10-K for the fiscal year ended May 31, 2015

- SEC File No. 1-8399

Ladies and Gentlemen:

Worthington Industries, Inc., an Ohio corporation, is today filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015 (the “Form 10-K”).

None of (i) Worthington Industries, Inc., (ii) any of the consolidated subsidiaries of Worthington Industries, Inc. or (iii) Worthington Armstrong Venture, a 50%-owned unconsolidated joint venture (in the form of a general partnership between Armstrong Ventures, Inc., a subsidiary of Armstrong World Industries, Inc., and The Worthington Steel Company (Delaware), a subsidiary of Worthington Industries, Inc.), for which financial statements are required to be filed with the Form 10-K, has outstanding any instrument or agreement with respect to its long-term debt, other than those filed or incorporated by reference as an exhibit to the Form 10-K, under which the total amount of long-term debt authorized exceeds 10% of the total assets of Worthington Industries, Inc. and its subsidiaries on a consolidated basis. In accordance with the provisions of Item 601(b)(4)(iii) of SEC Regulation S-K, Worthington Industries, Inc. hereby agrees to furnish to the SEC, upon request, a copy of each instrument or agreement defining (i) the rights of holders of the long-term debt of Worthington Industries, Inc. or (ii) the rights of holders of the long-term debt of a consolidated subsidiary of Worthington Industries, Inc. or (iii) the rights of holders of the long-term debt of Worthington Armstrong Venture, in each case which is not being filed or incorporated by reference as an exhibit to the Form 10-K.

Very truly yours,

WORTHINGTON INDUSTRIES, INC.

/s/ B. Andrew Rose

B. Andrew Rose

Executive Vice President and Chief Financial Officer

EX-10.57

Exhibit 10.57

AMENDMENT NO. 15 TO RECEIVABLES PURCHASE AGREEMENT

THIS AMENDMENT NO. 15 TO RECEIVABLES PURCHASE AGREEMENT (this “Amendment”), dated as of October 11, 2013, is entered into among WORTHINGTON RECEIVABLES CORPORATION, a Delaware corporation, as Seller (the “Seller”), WORTHINGTON INDUSTRIES, INC., an Ohio corporation, as Servicer (the “Servicer”), THE MEMBERS OF THE VARIOUS PURCHASER GROUPS FROM TIME TO TIME PARTY TO THE AGREEMENT (as defined below) (each, a “Purchaser Group” and collectively, the “Purchaser Groups”), MARKET STREET FUNDING LLC (“Market Street”), as Assignor (as defined below) and PNC BANK, NATIONAL ASSOCIATION (“PNC”), as Administrator (the “Administrator”) and Assignee (as defined below).

RECITALS

The Seller, the Servicer, each member of each of the Purchaser Groups and the Administrator are parties to the Receivables Purchase Agreement, dated as of November 30, 2000 (as amended, supplemented or otherwise modified through the date hereof, the “Agreement”).

Concurrently herewith, the Seller, the Servicer, PNC and the Administrator are entering into that certain Eighth Amended and Restated Fee Letter (the “Fee Letter”), dated as of the date hereof.

Market Street, as the assignor (in such capacity, the “Assignor”), desires to sell, assign and delegate to PNC, as the assignee (in such capacity, the “Assignee”), all of the Assignor’s rights under, interest in, title to and obligations under the Agreement and the other Transaction Documents (collectively, the “Assigned Documents”), and the Assignee desires to purchase and assume from the Assignor all of the Assignor’s rights under, interest in, title to and obligations under the Assigned Documents.

After giving effect to the assignment and assumption contemplated in Section 2 of this Amendment, each of the parties hereto desires that Market Street cease to be a party to the Agreement and each of the other Assigned Documents to which it is a party and to be discharged from its duties and obligations as a Purchaser or otherwise under the Agreement and each of the other Assigned Documents.

The parties hereto desire to amend the Agreement as hereinafter set forth.

NOW THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

1. Certain Defined Terms. Capitalized terms that are used herein without definition and that are defined in Exhibit I to the Agreement shall have the same meanings herein as therein defined.

1

2. Assignment and Assumption.

(a) Sale and Assignment by Assignor to Assignee. At or before 2:00 pm (New York time) on the date hereof, the Assignee shall pay to the Assignor, in immediately available funds, (i) the amount set forth on Schedule I hereto (such amount, the “Investment Payment”) representing 100.00% of the aggregate Investment of the Assignor under the Agreement on the date hereof and (ii) the amount set forth on Schedule I hereto representing all accrued but unpaid (whether or not then due) Discount, Fees and other costs and expenses payable in respect of such Investment to but excluding the date hereof (such amount, the “CP Costs and Other Costs”; together with the Investment Payment, collectively, the “Payoff Amount”). Upon the Assignor’s receipt of the Payoff Amount in its entirety, the Assignor hereby sells, transfers, assigns and delegates to the Assignee, without recourse, representation or warranty except as otherwise provided herein, and the Assignee hereby irrevocably purchases, receives, accepts and assumes from the Assignor, all of the Assignor’s rights under, interest in, title to and all its obligations under the Agreement and the other Assigned Documents. Without limiting the generality of the foregoing, the Assignor hereby assigns to the Assignee all of its right, title and interest in the Pool Assets.

Payment of each portion of the Payoff Amount shall be made by wire transfer of immediately available funds in accordance with the payment instructions set forth on Schedule II hereto.

(b) Removal of Assignor. From and after the Effective Date (as defined below), the Assignor shall cease to be a party to the Agreement and each of the other Assigned Documents to which it was a party and shall no longer have any rights or obligations under the Agreement or any other Assigned Document (other than such rights which by their express terms survive termination thereof).

(c) Limitation on Liability. Notwithstanding anything to the contrary set forth in this Amendment, the Assignee does not accept or assume any liability or responsibility for any breach, failure or other act or omission on the part of the Assignor, or any indemnification or other cost, fee or expense related thereto, in each case which occurred or directly or indirectly arose out of an event which occurred prior to the Effective Date.

(d) Retention of Liability. Notwithstanding anything to the contrary set forth in this Amendment, the Assignor retains and accepts any liability or responsibility for any breach, failure or other act or omission on the part of the Assignor, or any indemnification or other cost, fee or expense related thereto, in each case which occurred or directly or indirectly arose out of an event which occurred prior to the Effective Date.

2

(e) Acknowledgement and Agreement. Each of the parties and signatories hereto (i) hereby acknowledges and agrees to the sale, assignment and assumption set forth in clause (a) above, (ii) expressly waives any notice or other applicable requirements set forth in any Transaction Document as a prerequisite or condition precedent to such sale, assignment and assumption (other than as set forth herein) and (iii) acknowledges and agrees that this Section 2 is in form and substance substantially similar to a Transfer Supplement.

3. Joinder.

(a) PNC as a Related Committed Purchaser. From and after the date hereof, PNC shall be a Related Committed Purchaser party to the Agreement for all purposes thereof and of the other Transaction Documents as if PNC were an original party to the Agreement in such capacity, and PNC assumes all related rights and agrees to be bound by all of the terms and provisions applicable to Related Committed Purchasers contained in the Agreement and the other Transaction Documents.

(b) Appointment of PNC as Purchaser Agent of PNC’s Purchaser Group. PNC hereby designates itself as, and PNC hereby agrees to perform the duties and obligations of, the Purchaser Agent for PNC’s Purchaser Group. From and after the date hereof, PNC shall be a Purchaser Agent party to the Agreement, for all purposes of the Agreement and the other Transaction Documents as if PNC were an original party to the Agreement in such capacity, and PNC assumes all related rights and agrees to be bound by all of the terms and provisions applicable to Purchaser Agents contained in the Agreement and the other Transaction Documents.

(c) Commitment. The Commitment of PNC under the Agreement as a Related Committed Purchaser shall be $100,000,000 unless and until otherwise modified in accordance with the Agreement.

(d) Consent to Joinder. Each of the parties hereto consents to the foregoing joinder of PNC as a party to the Agreement in the capacities of a Related Committed Purchaser and Purchaser Agent, and any otherwise applicable conditions precedent thereto under the Agreement and the other Transactions Documents (other than as set forth herein) are hereby waived.

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4. Amendments to Agreement. The Agreement is hereby amended as follows:

(a) The following new Section 1.1(c) is hereby added to the Agreement immediately following existing Section 1.1(b):

(a) Each of the parties hereto hereby acknowledges and agrees that from and after the Fifteenth Amendment Effective Date, the Purchaser Group that includes PNC, as a Purchaser Agent and as a Purchaser, shall not include a Conduit Purchaser, and each request by the Seller for ratable Purchases by the Conduit Purchasers pursuant to Section 1.1(a) shall be deemed to be a request that the Related Committed Purchasers in PNC’s Purchaser Group make their ratable share of such Purchases.

(b) Section 1.7(b) of the Agreement is hereby amended by replacing the term “Euro-Rate” where it appears therein with the phrase “Euro-Rate or LMIR”.

(c) Section 1.8(b)(ii) of the Agreement is hereby amended by replacing the term “Euro-Rate” where it appears therein with the phrase “Euro-Rate or LMIR”.

(d) Section 1.9 of the Agreement is hereby replaced in its entirety with the following:

Section 1.9 Inability to Determine Euro-Rate or LMIR.

(a) If the Administrator (or any Purchaser Agent) determines before the first day of any Yield Period (or solely with respect to LMIR, on any day) (which determination shall be final and conclusive) that, by reason of circumstances affecting the interbank eurodollar market generally, deposits in dollars (in the relevant amounts for such Yield Period) are not being offered to banks in the interbank eurodollar market for such Yield Period, or adequate means do not exist for ascertaining the Euro-Rate or LMIR for such Yield Period, then the Administrator shall give written notice thereof to the Seller. Thereafter, until the Administrator or such Purchaser Agent notifies the Seller that the circumstances giving rise to such suspension no longer exist, (a) no Portion of Investment shall be funded at the Yield Rate determined by reference to the Euro-Rate or LMIR and (b) the Discount for any outstanding Portions of Investment then funded at the Yield Rate determined by reference to the Euro-Rate or LMIR shall, on the last day of the then current Yield Period (or solely with respect to LMIR, immediately), be converted to the Yield Rate determined by reference to the Base Rate.

(b) If, on or before the first day of any Yield Period (or solely with respect to LMIR, on any day), the Administrator shall have been notified by any Purchaser, Purchaser Agent or Liquidity Provider that, such Person has determined (which determination shall be final and conclusive) that, any enactment, promulgation or adoption of or any

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change in any applicable law, rule or regulation, or any change in the interpretation or administration thereof by a governmental authority, central bank or comparable agency charged with the interpretation or administration thereof, or compliance by such Person with any guideline, request or directive (whether or not having the force of law) of any such authority, central bank or comparable agency shall make it unlawful or impossible for such Person to fund or maintain any Portion of Investment at the Yield Rate and based upon the Euro-Rate or LMIR, the Administrator shall notify the Seller thereof in writing. Upon receipt of such notice, until the Administrator notifies the Seller that the circumstances giving rise to such determination no longer apply, (a) no Portion of Investment shall be funded at the Yield Rate determined by reference to the Euro-Rate or LMIR and (b) the Discount for any outstanding Portions of Investment then funded at the Yield Rate determined by reference to the Euro-Rate or LMIR shall be converted to the Yield Rate determined by reference to the Base Rate either (i) on the last day of the then current Yield Period (or solely with respect to LMIR, immediately) if such Person may lawfully continue to maintain such Portion of Investment at the Yield Rate determined by reference to the Euro-Rate or LMIR to such day, or (ii) immediately, if such Person may not lawfully continue to maintain such Portion of Investment at the Yield Rate determined by reference to the Euro-Rate or LMIR to such day.

(e) The signature block for Market Street set forth on signature page S-3 of the Agreement is hereby deleted in its entirety.

(f) The notice information for PNC in each of its capacities under the Agreement is hereby replaced in its entirety with the following:

Address:         PNC Bank, National Association

    Three PNC Plaza

    225 Fifth Avenue

    Pittsburgh, PA 15222-2707

    Attention:   Robyn Reeher

    Telephone:  (412) 768-3090

    Facsimile:   (412) 762-9184

(g) The following new defined terms and definitions thereof are hereby added to Exhibit I to the Agreement in appropriate alphabetical order:

“Fifteenth Amendment Effective Date” means the date on which that certain Fifteenth Amendment to this Agreement, dated as of October 11, 2013, becomes effective in accordance with its terms.

“LMIR” means for any day during any Yield Period, the one-month Eurodollar rate for U.S. dollar deposits as reported on the Reuters Screen LIBOR01 Page or any other page that may replace such page from

5

time to time for the purpose of displaying offered rates of leading banks for London interbank deposits in United States dollars, as of 11:00 a.m. (London time) on such day, or if such day is not a Business Day, then the immediately preceding Business Day (or if not so reported, then as determined by the Administrator from another recognized source for interbank quotation), in each case, changing when and as such rate changes.

“PNC Base Rate” means, in the case of PNC or any Purchaser in its Purchaser Group, for any day, a fluctuating interest rate per annum as shall be in effect from time to time, which rate shall be at all times equal to the higher of:

(a) the rate of interest in effect for such day as publicly announced from time to time by PNC in Pittsburgh, Pennsylvania as its “prime rate.” Such “prime rate” is set by PNC based upon various factors, including PNC’s costs and desired return, general economic conditions and other factors, and is used as a reference point for pricing some loans, which may be priced at, above or below such announced rate, and

(b) 0.50% per annum above the latest Federal Funds Rate.

“PNC Yield Rate” for any Yield Period and any Portion of Investment of the Purchased Interest with respect to PNC or any Purchaser in its Purchaser Group, means an interest rate per annum equal to: (a) the daily average LMIR for such Yield Period, or (b) if LMIR is unavailable pursuant to Section 1.9, the Base Rate for such Yield Period; provided, however, that the “PNC Yield Rate” for any day while a Termination Event exists shall be an interest rate equal to (in the Administrator’s sole and absolute discretion) (i) 2% per annum above the PNC Base Rate or (ii) the “Applicable Margin” set forth in the Purchaser Group Fee Letter relating to PNC.

(h) The definition of “Base Rate” set forth in Exhibit I to the Agreement is replaced in its entirety with the following:

“Base Rate” means, for any day, (i) in the case of the Purchaser Group including PNC, the PNC Base Rate and (ii) in the case of each other Purchaser Group, the rate set forth as the Base Rate for such Purchaser Group in the related Purchaser Group Fee Letter.

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(i) The definition of “Business Day” set forth in Exhibit I to the Agreement is replaced in its entirety with the following:

“Business Day” means any day (other than a Saturday or Sunday) on which: (a) banks are not authorized or required to close in New York City, New York or Pittsburgh, Pennsylvania and (b) if this definition of “Business Day” is utilized in connection with the Euro-Rate or LMIR, dealings are carried out in the London interbank market.

(j) The definition of “CP Rate” set forth in Exhibit I to the Agreement is replaced in its entirety with the following:

“CP Rate” means, with respect to any Conduit Purchaser for any Yield Period and any Portion of Investment, the rate set forth as the CP Rate for such Conduit Purchaser in the related Purchaser Group Fee Letter.

(k) The definition of “Purchaser Group” set forth in Exhibit I to the Agreement is replaced in its entirety with the following:

“Purchaser Group” means, (i) for each Conduit Purchaser, such Conduit Purchaser, its Related Committed Purchasers and its related Purchaser Agent and (ii) for PNC, PNC, as a Purchaser Agent and a Related Committed Purchaser.

(l) The definition of “Year” set forth in the definition of “Discount” set forth in Exhibit I to the Agreement is hereby amended by replacing the term “Euro-Rate” where it appears therein with the phrase “Euro-Rate or LMIR”.

(m) The definition of “Yield Rate” set forth in Exhibit I to the Agreement is replaced in its entirety with the following:

“Yield Rate” for any Yield Period for any Portion of Investment of the Purchased Interest (i) in the case of the Purchaser Group including PNC, means the PNC Yield Rate, and (ii) in the case of each other Purchaser Group, shall mean the rate set forth as the Yield Rate for such Purchaser Group in the related Purchaser Group Fee Letter.

(n) The following defined terms, and definitions thereof, set forth in Exhibit I to the Agreement are hereby deleted in their entirety: “Market Street”, “Market Street Base Rate”, “Market Street CP Rate” and “Market Street Yield Rate”

(o) Annex B to the Agreement is hereby replaced in its entirety with Exhibit A attached hereto.

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5. Representations and Warranties. The Seller and the Servicer each hereby represents and warrants to the Administrator, the Assignee and each member of the various Purchaser Groups from time to time party to the Agreement as follows:

(a) Representations and Warranties. Its representations and warranties contained in Exhibit III of the Agreement are true and correct as of the date hereof (unless stated to relate solely to an earlier date, in which case such representations or warranties were true and correct as of such earlier date);

(b) Enforceability. The execution and delivery by each of the Seller and the Servicer of this Amendment, and the performance of each of its obligations under this Amendment and the Agreement, as amended hereby, are within each of its corporate powers and have been duly authorized by all necessary corporate action on each of its parts. This Amendment and the Agreement, as amended hereby, are each of the Seller’s and the Servicer’s valid and legally binding obligations, enforceable in accordance with its terms; and

(c) No Default. Both before and immediately after giving effect to this Amendment and the transactions contemplated hereby, no Termination Event or Unmatured Termination Event exists or shall exist.

6. Effect of Amendment. All provisions of the Agreement, including as expressly amended and modified by this Amendment, shall remain in full force and effect and are hereby ratified. After this Amendment becomes effective, all references in the Agreement (or in any other Transaction Document) to “this Agreement”, “hereof”, “herein” or words of similar effect referring to the Agreement shall be deemed to be references to the Agreement as amended by this Amendment. This Amendment shall not be deemed, either expressly or impliedly, to waive, amend or supplement any provision of the Agreement other than as set forth herein.

7. Effectiveness. This Amendment shall become effective as of the date hereof (the “Effective Date”) upon which each of the following conditions precedent have been satisfied: (I) receipt by the Administrator of (i) counterparts of this Amendment (whether by facsimile or otherwise) executed by each of the parties hereto and (ii) counterparts of the Fee Letter (whether by facsimile or otherwise) executed by each of the parties thereto and (II) the Assignor shall have received the Payoff Amount in its entirety in accordance with Section 2 of this Amendment.

8. No Proceedings. Each of the parties hereto hereby covenants and agrees that it will not institute against, or join any other Person in instituting against, Market Street any bankruptcy, reorganization, arrangement, insolvency or liquidation proceeding, or other proceeding under any federal or state bankruptcy or similar law, for one year and one day after the latest maturing Note issued by Market Street is paid in full. The provisions of this Section 8 shall survive any termination of the Agreement.

9. Further Assurances. Each of the Seller and the Servicer hereby agrees to do all such things and execute all such documents and instruments, at the Seller’s sole expense, as the Assignee may reasonably consider necessary or desirable to give full effect to the assignment and assumption set forth in Section 2 of this Amendment.

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10. Counterparts. This Amendment may be executed in any number of counterparts and by different parties on separate counterparts, each of which when so executed shall be deemed to be an original and all of which when taken together shall constitute but one and the same instrument.

11. Severability. Each provision of this Amendment shall be severable from every other provision of this Amendment for the purpose of determining the legal enforceability of any provision hereof, and the unenforceability of one or more provisions of this Amendment in one jurisdiction shall not have the effect of rendering such provision or provisions unenforceable in any other jurisdiction.

12. Governing Law. This Amendment shall be governed by, and construed in accordance with, the internal laws of the State of New York (without regard to any otherwise applicable principles of conflicts of law other than Sections 5-1401 and 5-1402 of the New York General Obligations Law).

13. Section Headings. The various headings of this Amendment are included for convenience only and shall not affect the meaning or interpretation of this Amendment, the Agreement or any provision hereof or thereof.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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IN WITNESS WHEREOF, the parties have executed this Amendment as of the date first written above.

WORTHINGTON RECEIVABLES
CORPORATION, as Seller
By:	/s/ Matthew A. Lockard
Name: Matthew A. Lockard
Title: Treasurer
WORTHINGTON INDUSTRIES, INC., as Servicer
By:	/s/ Matthew A. Lockard
Name: Matthew A. Lockard
Title: Treasurer

S-1 Amendment No. 15 to Receivables Purchase Agreement (Worthington)

MARKET STREET FUNDING LLC
By:	/s/ Doris J. Hearn
Name: Doris J. Hearn
Title: Vice President
PNC BANK, NATIONAL ASSOCIATION
By:	/s/ Mark Falcione
Name: Mark Falcione
Title: Executive Vice President

S-2 Amendment No. 15 to Receivables Purchase Agreement (Worthington)

EXHIBIT A

ANNEX B        

to Receivables Purchase Agreement

FORM OF PURCHASE NOTICE

                              , 20    

PNC Bank, National Association

Three PNC Plaza

225 Fifth Avenue

Pittsburgh, PA 15222-2707

Ladies and Gentlemen:

Reference is hereby made to the Receivables Purchase Agreement, dated as of November 30, 2000 (as heretofore amended or supplemented, the “Receivables Purchase Agreement”), among Worthington Receivables Corporation (“Seller”), Worthington Industries, Inc., as Servicer, the various other Purchaser Groups from time to time a party thereto and PNC Bank National Association, as a purchaser (a “Purchaser”) and the administrator (the “Administrator”). Capitalized terms used in this Purchase Notice and not otherwise defined herein shall have the meanings assigned thereto in the Receivables Purchase Agreement.

This letter constitutes a Purchase Notice pursuant to Section 1.2(a) of the Receivables Purchase Agreement. Seller desires to sell an undivided variable interest in a pool of receivables on             , [20        ], for a purchase price of $            . Subsequent to this Purchase, the Aggregate Investment will be $            .

Seller hereby represents and warrants as of the date hereof, and as of the date of Purchase, as follows:

(i) the representations and warranties contained in Exhibit III of the Receivables Purchase Agreement are correct on and as of such dates as though made on and as of such dates and shall be deemed to have been made on such dates;

(ii) no Termination Event or Unmatured Termination Event has occurred and is continuing, or would result from such purchase;

(iii) after giving effect to the purchase proposed hereby, the Aggregate Investment of the Purchased Interest will not exceed 100% and the Aggregate Investment will not exceed the Purchase Limit; and

(iv) the Facility Termination Date shall not have occurred.

Annex B-1

IN WITNESS WHEREOF, the undersigned has caused this Purchase Notice to be executed by its duly authorized officer as of the date first above written.

WORTHINGTON RECEIVABLES CORPORATION

By:

Name Printed:

Title:

Annex B-2

SCHEDULE I

ASSIGNMENTS AND PAYMENT AMOUNTS

Section 1.
Investment Payment:	$	70,000,000.00
Section 2.
Discount:	$	6,026.98
Fees:	$	26,250.00
Other Amounts:	$	0
CP Costs and Other Costs:	$	32,276.98

Schedule I

SCHEDULE II

WIRING INSTRUCTIONS

Wiring instructions with respect to amounts payable to the Assignor:

Bank Name:	PNC Bank, National Association
ABA #:	xxxxxxxxx
Account #:	xxxxxxxxxx
Account Name:	Market Street Funding LLC
Reference:	Worthington Receivables Corporation

Schedule II

EX-10.58

Exhibit 10.58

AMENDMENT NO. 16 TO RECEIVABLES PURCHASE AGREEMENT

THIS AMENDMENT NO. 16 TO RECEIVABLES PURCHASE AGREEMENT (this “Amendment”), dated as of May 23, 2014, is entered into among WORTHINGTON RECEIVABLES CORPORATION, a Delaware corporation, as Seller (the “Seller”), WORTHINGTON INDUSTRIES, INC., an Ohio corporation, as Servicer (the “Servicer”), THE MEMBERS OF THE VARIOUS PURCHASER GROUPS FROM TIME TO TIME PARTY TO THE AGREEMENT (as defined below) (each, a “Purchaser Group” and collectively, the “Purchaser Groups”), and PNC BANK, NATIONAL ASSOCIATION, as Administrator (the “Administrator”).

RECITALS

The Seller, the Servicer, each member of each of the Purchaser Groups and the Administrator are parties to the Receivables Purchase Agreement, dated as of November 30, 2000 (as amended, supplemented or otherwise modified through the date hereof, the “Agreement”); and

The parties hereto desire to amend the Agreement as hereinafter set forth.

NOW THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

1. Certain Defined Terms. Capitalized terms that are used herein without definition and that are defined in Exhibit I to the Agreement shall have the same meanings herein as therein defined.

2. Amendment to Agreement. Schedule II to the Agreement is hereby amended and restated in its entirety as set forth on Schedule II hereto.

3. Representations and Warranties. The Seller and the Servicer each hereby represents and warrants to the Administrator and each member of the various Purchaser Groups from time to time party to the Agreement as follows:

(a) Representations and Warranties. Its representations and warranties contained in Exhibit III of the Agreement are true and correct as of the date hereof (unless stated to relate solely to an earlier date, in which case such representations or warranties were true and correct as of such earlier date);

(b) Enforceability. The execution and delivery by each of the Seller and the Servicer of this Amendment, and the performance of each of its obligations under this Amendment and the Agreement, as amended hereby, are within each of its corporate powers and have been duly authorized by all necessary corporate action on each of its parts. This Amendment and the Agreement, as amended hereby, are each of the Seller’s and the Servicer’s valid and legally binding obligations, enforceable in accordance with its terms; and

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(c) No Default. Both before and immediately after giving effect to this Amendment and the transactions contemplated hereby, no Termination Event or Unmatured Termination Event exists or shall exist.

4. Effect of Amendment. All provisions of the Agreement, including as expressly amended and modified by this Amendment, shall remain in full force and effect and are hereby ratified. After this Amendment becomes effective, all references in the Agreement (or in any other Transaction Document) to “this Agreement”, “hereof”, “herein” or words of similar effect referring to the Agreement shall be deemed to be references to the Agreement as amended by this Amendment. This Amendment shall not be deemed, either expressly or impliedly, to waive, amend or supplement any provision of the Agreement other than as set forth herein.

5. Effectiveness. This Amendment shall become effective as of the date hereof upon receipt by the Administrator of counterparts of: (a) this Amendment and (b) that certain Blocked Account Control Agreement, dated as of the date hereof, among the Administrator, the Servicer, the Seller and JPMorgan Chase Bank, N.A., in each case (whether by facsimile or otherwise) executed by each of the parties hereto or thereto, as applicable.

6. Counterparts. This Amendment may be executed in any number of counterparts and by different parties on separate counterparts, each of which when so executed shall be deemed to be an original and all of which when taken together shall constitute but one and the same instrument.

7. Severability. Each provision of this Amendment shall be severable from every other provision of this Amendment for the purpose of determining the legal enforceability of any provision hereof, and the unenforceability of one or more provisions of this Amendment in one jurisdiction shall not have the effect of rendering such provision or provisions unenforceable in any other jurisdiction.

8. Governing Law. This Amendment shall be governed by, and construed in accordance with, the internal laws of the State of New York (without regard to any otherwise applicable principles of conflicts of law other than Sections 5-1401 and 5-1402 of the New York General Obligations Law).

9. Section Headings. The various headings of this Amendment are included for convenience only and shall not affect the meaning or interpretation of this Amendment, the Agreement or any provision hereof or thereof.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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IN WITNESS WHEREOF, the parties have executed this Amendment as of the date first written above.

WORTHINGTON RECEIVABLES
CORPORATION, as Seller
By:	/s/ Marcus Rogier
Name: Marcus Rogier
Title: Treasurer
WORTHINGTON INDUSTRIES, INC., as Servicer
By:	/s/ Marcus Rogier
Name: Marcus Rogier
Title: Treasurer

S-1 Amendment No. 16 to Receivables Purchase Agreement (Worthington)

PNC BANK, NATIONAL ASSOCIATION,
as Administrator
By:	/s/ Robyn Reeher
Name: Robyn Reeher
Title: Vice President
PNC BANK, NATIONAL ASSOCIATION, as a Purchaser Agent and a Related Committed Purchaser
By:	/s/ Robyn Reeher
Name: Robyn Reeher
Title: Vice President

S-2 Amendment No. 16 to Receivables Purchase Agreement (Worthington)

SCHEDULE II

SCHEDULE II

LOCK-BOX BANKS AND LOCK-BOX ACCOUNTS

Lock-Box Bank	Lock-Box	Account
PNC Bank, National Association	xxxxxx	xxxxxxxxxx
	xxxxxx	xxxxxxxxxx
	xxxxxx	xxxxxxxxxx
JPMorgan Chase	xxxxx	xxxxxxxxx
Bank, N.A.	xxxxx	xxxxxxxxx

Schedule II

EX-10.69

Exhibit 10.69

ANNUAL BASE SALARIES APPROVED FOR NAMED EXECUTIVE OFFICERS

OF

WORTHINGTON INDUSTRIES, INC.

On June 23, 2015, the Compensation and Stock Option Committee of the Board of Directors of Worthington Industries, Inc. (the “Registrant”) approved the base salaries for the named executive officers identified below, which base salaries will become effective September 2015.

Name and Principal Position	Base Salary
John P. McConnell Chairman of the Board and Chief Executive Officer of the Registrant	$	643,750
Mark A. Russell President and Chief Operating Officer of the Registrant	$	530,500
B. Andrew Rose Executive Vice President and Chief Financial Officer of the Registrant	$	479,500
Andrew J. Billman President, Worthington Cylinder Corporation	$	371,315
Geoffrey G. Gilmore President, The Worthington Steel Company	$	425,000

EX-10.74

Exhibit 10.74

SUMMARY OF ANNUAL CASH INCENTIVE BONUS AWARDS,

LONG-TERM PERFORMANCE AWARDS, STOCK OPTIONS AND RESTRICTED COMMON

SHARES GRANTED IN FISCAL 2016 FOR NAMED EXECUTIVE OFFICERS

Annual Cash Incentive Bonus Awards Granted In Fiscal 2016

The following table sets forth the annual cash incentive bonus awards granted to the following named executive officers (“NEOs”) of Worthington Industries, Inc. (the “Company”) under the Worthington Industries, Inc. Annual Incentive Plan for Executives for the twelve-month performance period ending May 31, 2016:

Annual Cash Incentive Bonus Awards Granted for Fiscal 2016

Name	Annual Cash Incentive Bonus Awards for Twelve-Month Performance Period Ending May 31,  2016 (1)
	Threshold ($)		Target ($)		Maximum ($)
John P. McConnell		442,900		885,800		1,771,600
B. Andrew Rose		251,835		503,670		1,007,340
Mark A. Russell		318,270		636,540		1,273,080
Andrew J. Billman		185,658		371,315		742,630
Geoffrey G. Gilmore		225,000		450,000		900,000

(1) Payouts which can be earned under these annual cash incentive bonus awards are generally tied to achieving specified levels (threshold, target and maximum) of corporate EVA and EPS for the twelve-month performance period with each performance measure carrying a 50% weighting. For Mr. Billman and Mr. Gilmore, business unit executives, the corporate EPS measure carries a 20% weighting, the applicable business unit EOI carries a 30% weighting, and the business unit EVA carries a 50% weighting. For all calculations, restructuring charges and non-recurring items are excluded and EPS and the Steel Processing business unit EOI results are adjusted to eliminate the impact of FIFO gains and losses. If the performance level falls between threshold and target or between target and maximum, the award is prorated. If threshold levels are not reached for any performance measure, no annual cash incentive bonus will be paid. Annual cash incentive bonus award payouts earned will be made within a reasonable time following the end of the performance period. In the event of a change in control of the Company (followed by actual or constructive termination of an NEO’s employment during the performance period), the annual cash incentive bonus award would be considered to be earned at target and payable as of the date of termination of employment.

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Long-Term Performance Awards, Option Awards and Restricted Common Share Awards Granted in Fiscal 2016

The following table sets forth the long-term performance awards (consisting of cash performance awards and performance share awards) for the three-fiscal-year period ending May 31, 2018 and the option and restricted common share awards granted to the NEOs in the fiscal year ending May 31, 2016 (“Fiscal 2016).

Long-Term Performance Awards, Option Awards and Restricted Common Share Awards Granted in Fiscal 2016

Name	Long-Term Cash Performance Awards for  Three- Fiscal-Year Period Ending May 31, 2018 (1)						Long-Term Performance Share Awards  for Three-Fiscal- Year Period Ending May 31, 2018 (1)						Option Awards: Number of Common Shares Underlying Options (2)		Exercise or Base Price of Option Awards ($/Share) (2)		Restricted Common Share Awards
	Threshold ($)		Target ($)		Maximum ($)		Threshold (# of Common Shares)		Target (# of Common Shares)		Maximum (# of Common Shares)
John P. McConnell		500,000		1,000,000		2,000,000		10,000		20,000		40,000		35,000		30.92		30,000	(3)
B. Andrew Rose		300,000		600,000		1,200,000		5,000		10,000		20,000		17,000		30.92		16,000	(3)
Mark A. Russell		300,000		600,000		1,200,000		5,000		10,000		20,000		17,000		30.92		16,000	(3)
Andrew J. Billman		150,000		300,000		600,000		2,500		5,000		10,000		8,500		30.92		8,000	(3)
Geoffrey G. Gilmore		150,000		300,000		600,000		2,500		5,000		10,000		8,500		30.92		8,500	(3)

(1) These columns show the potential payouts under the long-term cash performance awards and the long-term performance share awards granted to the NEOs under the 1997 LTIP for the three-fiscal-year performance period from June 1, 2015 to May 31, 2018. Payouts of long-term cash performance awards and long-term performance share awards for corporate executives are tied to achieving specified levels (threshold, target and maximum) of cumulative corporate EVA for the three-fiscal-year performance period and EPS growth over that performance period, with each performance measure carrying a 50% weighting. For Mr. Gilmore, a Steel Processing business unit executive, and for Mr. Billman, a Pressure Cylinders business unit executive, the cumulative corporate EVA and EPS growth measures together carry a 50% weighting, and the applicable business unit EOI targets are weighted 50%. In all calculations, restructuring charges and non-recurring items are excluded, and EPS and Steel Processing business unit EOI results are adjusted to eliminate the impact of FIFO gains or losses. No awards are paid or distributed if none of the three-fiscal-year threshold financial measures are met. If the performance levels fall between threshold and target or between target and maximum, the award is prorated.

(2) Effective June 26, 2015, under the 2010 Stock Option Plan, the NEOs were granted non-qualified stock options with respect to the number of common shares shown, with an exercise price equal to $30.92, the fair market value of the underlying common shares on the date of grant. The options become exercisable over three years in increments of 33% per year on each anniversary of their grant date.

(3) These annual time-vested restricted common share awards were granted effective June 26, 2015 under the 1997 LTIP.

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EX-21

Exhibit 21

SUBSIDIARIES OF WORTHINGTON INDUSTRIES, INC.

The following is a list of the subsidiaries, direct and indirect, of Worthington Industries, Inc., an Ohio corporation, together with their respective jurisdictions of incorporation or organization as of July 30, 2015. The names of indirectly-owned subsidiaries are indented under the names of their respective immediate parents:

Enterprise Protection Insurance Company	Vermont
Worthington Industries Leasing, LLC	Ohio
Worthington Services, LLC	Ohio
Worthington Industries Medical Center, Inc.	Ohio
Worthington Steel of Michigan, Inc. (d/b/a The Worthington Steel Company)	Michigan
Worthington Industries Engineered Cabs, Inc. d/b/a Angus Industries, Inc.	Delaware
Worthington Industries Engineered Cabs, LLC d/b/a Angus-Palm, LLC	Delaware
Advanced Component Technologies, Inc.	Minnesota
Cleveland Pickling, Inc.	Delaware
GerCo Holdings, Inc.	Ohio
Precision Specialty Metals, Inc.	Delaware
Worthington Steel Rome, LLC	Ohio
Worthington-Buckeye, Inc.	Ohio
Worthington Cylinder Corporation	Ohio
Structural Composites Industries, LLC	Delaware
Worthington Cylinder Corporation, LLC	Ohio
Worthington Cylinders Mexico, S de RL de CV	Mexico
WI Netherlands Holdings, C.V.	Netherlands
Worthington Industries Mauritius	Mauritius
Worthington Industries Global Holdings, LLC	Ohio
Worthington Industries Global Holdings, LLC & Co. OG	Austria
Worthington Industries International S.à.r.l.	Luxembourg
Stako Sp. z.o.o.	Poland
Worthington Cylinders GmbH	Austria
Worthington Steel Mexico, S.A. de C.V.	Mexico
Worthington Cylinders-Embalagens Industriais de Gas, S.A.	Portugal
Worthington Cylinders Kansas, LLC	Ohio
Worthington Cylinders Mississippi, LLC	Ohio
Worthington Cylinders Wisconsin, LLC	Ohio
Worthington Cylinders of Canada, Corp.	Canada
Worthington Cryogenics, LLC	Ohio
Worthington Torch, LLC	Ohio
Westerman, Inc. d/b/a Palmer Mfg. & Tank, Inc.	Ohio
Westerman Acquisition Co., LLC	Ohio
Westerman Rocky Mountain LLC	Ohio
Worthington Energy Group, Inc.	Ohio
The Worthington Steel Company (formerly Worthington Ventures, Inc.)	Delaware
Worthington Steelpac Systems, LLC d/b/a Worthington Industries Packaging Solutions	Delaware
Worthington Mid-Rise Construction, Inc.	Ohio
Worthington Military Construction, Inc.	Ohio
The Worthington Steel Company	Ohio
Worthington Receivables Corporation	Delaware
The Worthington Steel Company, LLC	Ohio
The Worthington Steel Company of Decatur, Inc.	Michigan
Worthington Steel Company of Decatur, L.L.C.	Alabama
Worthington Precision Steel, Inc.	Ohio

1

Worthington OEG Company	Michigan
Worthington Steel Company of Alabama, Inc. & Co. OEG	Austria
Worthington WSP, LLC	Michigan
Joint Ventures
ArtiFlex Manufacturing, LLC (1)	Delaware
4400 Donker Land, LLC	Michigan
Clarkwestern Dietrich Building Systems, LLC (2)	Ohio
dHybrid Systems, LLC (3)	Ohio
Samuel Steel Pickling Company (4)	New York
Serviacero Planos, S.A. de R.L. de C.V. (5)	Mexico
(Serviacero Planos Servicios, S.A. de C.V. (i.e. services company to JV Company)	Mexico
Spartan Steel Coating, LLC (6)	Michigan
TWB Company, L.L.C. (7)	Michigan
TWB of Ohio, Inc.	Ohio
Tailor Welded Blanks of Canada, Inc.	Canada
TWB Industries, S.A. de C.V.	Mexico
TWB de Mexico, S.A. de C.V.	Mexico
Worthington Armstrong Venture (WAVE) (8)	Delaware
Worthington Aritaş Basinçli Kaplar Sanayi Anonim Şirketi (9)	Turkey
Worthington Energy Innovations, LLC (10)	Ohio
Worthington Modern Steel Framing System Co., Ltd. (11)	China
Worthington Nitin Cylinders Limited (12)	India
Worthington Specialty Processing (WSP) (13)	Michigan
Worthington Taylor, LLC	Michigan
ProCoil Company, LLC	Delaware
Zhejiang Nisshin Worthington Precision Specialty Steel Co., Ltd. (14)	China

(1) Unconsolidated joint venture with 50% owned by GerCo Holdings, Inc. and 50% owned by ITS-H Holdings, LLC

(2) Unconsolidated joint venture with 25% owned by The Worthington Steel Company, DE and 75% owned by Clarkwestern Building Systems, Inc.

(3) Consolidated joint venture with 79.59% owned by Worthington Cylinder Corporation and 20.41% owned by M&M Residual, LLC

(4) Unconsolidated joint venture with 31.25% owned by Cleveland Pickling, Inc. and 68.75% owned by Samuel Manu-Tech Pickling, Inc.

(5) Unconsolidated joint venture with 50% owned by Worthington Steel Mexico, S.A. de C.V. and 50% owned by Inverzer, S.A. de C.V.

(6) Consolidated joint venture with 52% owned by Worthington Steel of Michigan, Inc. and 48% owned by Severstal North America, Inc.

(7) Consolidated joint venture with 55% owned by Worthington Steel of Michigan, Inc. and 45% owned by WISCO International Tailored Blanks GmbH

(8) Unconsolidated joint venture, operating as a general partnership, with 50% owned by The Worthington Steel Company (Delaware) and 50% owned by Armstrong Ventures, Inc., a subsidiary of Armstrong World Industries, Inc.

(9) Consolidated joint venture with 75% owned by Worthington Industries International S.à r.l. and 25% owned by the founding shareholders

(10) Consolidated joint venture with 75% owned by Worthington Energy Group, Inc., 20% owned by Thomas E. Kiser and 5% owned by Stonehenge Structured Finance Partners, LLC

(11) Unconsolidated joint venture with 60% owned by Hubei Modern Urban Construction & Development Group Co., Ltd. and 40% owned by Worthington Industries International S.à r.l.

(12) Consolidated joint venture, with 60% owned by Worthington Industries Mauritius and 40% owned by Nitin Fire Protection Industries Limited

(13) Unconsolidated joint venture, operating as a general partnership, with 51% owned by Worthington WSP, LLC and 49% by USS WSP, LLC.

(14) Unconsolidated joint venture with 55% owned by Nisshin Steel Co., Ltd., 35% owned by Marubeni-Itochu Steel Inc., and 10% owned by Worthington Industries International S.à r.l.

2

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Worthington Industries, Inc.:

We consent to the incorporation by reference in the registration statements:

• (Form S-3 No. 333-195101) pertaining to the shelf registration of common shares, without par value, and debt securities of Worthington Industries, Inc.;

• (Forms S-8 Nos. 033-57981 and 333-168421) pertaining to the Worthington Industries, Inc. Deferred Profit Sharing Plan;

• (Forms S-3 Nos. 333-168418 and 333-48627) pertaining to the Worthington Industries, Inc. Dividend Reinvestment and Stock Purchase Plan;

• (Form S-8 Nos. 333-42849 and 333-191668) pertaining to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan;

• (Form S-8 No. 333-52628) pertaining to the Worthington Industries, Inc. Amended and Restated 2000 Stock Option Plan for Non-Employee Directors;

• (Form S-8 No. 333-109619) pertaining to the Worthington Industries, Inc. Amended and Restated 2003 Stock Option Plan;

• (Form S-8 Nos. 333-137614 and 333-177237) pertaining to the Worthington Industries, Inc. Amended and Restated 2006 Equity Incentive Plan for Non-Employee Directors;

• (Form S-8 No. 333-126177) pertaining to the Dietrich Industries, Inc. Salaried Employees’ Profit Sharing Plan;

• (Form S-8 No. 333-126183) pertaining to the Worthington Industries, Inc. Retirement Savings Plan for Collectively Bargained Employees;

• (Form S-8 No. 333-169769) pertaining to the Worthington Industries, Inc. 2010 Stock Option Plan;

• (Form S-8 No. 333-198203) pertaining to the Worthington Industries, Inc. Amended and Restated 2005 Deferred Compensation Plan for Directors, as amended;

• (Form S-8 No. 333-198201) pertaining to the Worthington Industries, Inc. Non-Qualified Deferred Compensation Plan, as amended;

• (Form S-8 No. 333-198200) pertaining to the Worthington Industries, Inc. Amended and Restated 2005 Non-Qualified Deferred Compensation Plan, as amended;

• (Form S-8 No. 333-198199) pertaining to the Worthington Industries, Inc. Deferred Compensation Plan for Directors, as amended.

of our reports dated July 30, 2015, with respect to the consolidated balance sheets of Worthington Industries, Inc. and subsidiaries as of May 31, 2015 and 2014, and the related consolidated statements of earnings, comprehensive income, equity, and cash flows for each of the years in the three-year period ended May 31, 2015, and the related financial statement schedule, and the effectiveness of internal control over financial reporting as of May 31, 2015, which reports appear in the Annual Report on Form 10-K for the fiscal year ended May 31, 2015 of Worthington Industries, Inc.

/s/ KPMG LLP

Columbus, Ohio

July 30, 2015

EX-23.2

Exhibit 23.2

Consent of Independent Auditor

The Board of Directors

Worthington Armstrong Venture:

We consent to the incorporation by reference in the registration statements:

• (Form S-3 No. 333-195101) pertaining to the shelf registration of common shares, without par value, and debt securities of Worthington Industries, Inc.;

• (Forms S-8 Nos. 033-57981 and 333-168421) pertaining to the Worthington Industries, Inc. Deferred Profit Sharing Plan;

• (Forms S-3 Nos. 333-168418 and 333-48627) pertaining to the Worthington Industries, Inc. Dividend Reinvestment and Stock Purchase Plan;

• (Form S-8 Nos. 333-42849 and 333-191668) pertaining to the Worthington Industries, Inc. Amended and Restated 1997 Long-Term Incentive Plan;

• (Form S-8 No. 333-52628) pertaining to the Worthington Industries, Inc. Amended and Restated 2000 Stock Option Plan for Non-Employee Directors;

• (Form S-8 No. 333-109619) pertaining to the Worthington Industries, Inc. Amended and Restated 2003 Stock Option Plan;

• (Form S-8 Nos. 333-137614 and 333-177237) pertaining to the Worthington Industries, Inc. Amended and Restated 2006 Equity Incentive Plan for Non-Employee Directors;

• (Form S-8 No. 333-126177) pertaining to the Dietrich Industries, Inc. Salaried Employees’ Profit Sharing Plan;

• (Form S-8 No. 333-126183) pertaining to the Worthington Industries, Inc. Retirement Savings Plan for Collectively Bargained Employees;

• (Form S-8 No. 333-169769) pertaining to the Worthington Industries, Inc. 2010 Stock Option Plan;

• (Form S-8 No. 333-198203) pertaining to the Worthington Industries, Inc. Amended and Restated 2005 Deferred Compensation Plan for Directors, as amended;

• (Form S-8 No. 333-198201) pertaining to the Worthington Industries, Inc. Non-Qualified Deferred Compensation Plan, as amended;

• (Form S-8 No. 333-198200) pertaining to the Worthington Industries, Inc. Amended and Restated 2005 Non-Qualified Deferred Compensation Plan, as amended;

• (Form S-8 No. 333-198199) pertaining to the Worthington Industries, Inc. Deferred Compensation Plan for Directors, as amended.

of our report dated February 16, 2015, with respect to the consolidated balance sheets of Worthington Armstrong Venture and subsidiaries as of December 31, 2014 and 2013, and the related consolidated statements of income and comprehensive income, partners’ deficit and cash flows for each of the years in the three-year period ended December 31, 2014, which report appears in Exhibit 99.1 to the Annual Report on Form 10-K for the fiscal year ended May 31, 2015 of Worthington Industries, Inc.

/s/ KPMG LLP

Philadelphia, Pennsylvania

July 30, 2015

EX-24

Exhibit 24

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned officer and director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints B. Andrew Rose and Dale T. Brinkman, each with full power to act without the other, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/     John P. McConnell

John P. McConnell

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned officer of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell and Dale T. Brinkman, each with full power to act without the other, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/     B. Andrew Rose

B. Andrew Rose

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned officer of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/    Richard G. Welch

Richard G. Welch

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for her and in her name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as she might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set her hand this 24th day of July, 2015.

/s/    Kerrii B. Anderson

Kerrii B. Anderson

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/    John B. Blystone

John B. Blystone

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/    Mark C. Davis

Mark C. Davis

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/    Michael J. Endres

Michael J. Endres

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/    Ozey K. Horton, Jr.

Ozey K. Horton, Jr.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/    Peter Karmanos, Jr.

Peter Karmanos, Jr.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/     Carl A. Nelson, Jr.

Carl A. Nelson, Jr.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 24th day of July, 2015.

/s/    Sidney A. Ribeau

Sidney A. Ribeau

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Worthington Industries, Inc., an Ohio corporation, which anticipates filing its Annual Report on Form 10-K for the fiscal year ended May 31, 2015, with the Securities and Exchange Commission, Washington, D.C., under the provisions of the Securities Exchange Act of 1934, as amended, hereby makes, constitutes and appoints John P. McConnell, B. Andrew Rose and Dale T. Brinkman, each with full power to act without the others, her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for her and in her name, place and stead, in any and all capacities, to sign such Annual Report on Form 10-K and any and all amendments to such Annual Report on Form 10-K, and to file the same with all exhibits, financial statements and schedules related thereto, and any and all applications or other documents pertaining to such Annual Report on Form 10-K, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as she might or could do if personally present. The undersigned hereby ratifies and confirms all that each said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set her hand this 24th day of July, 2015.

/s/    Mary Schiavo

Mary Schiavo

EX-31.1

Exhibit 31.1

RULE 13a-14(a) / 15d-14(a)

CERTIFICATIONS (PRINCIPAL EXECUTIVE OFFICER)

CERTIFICATIONS

I, John P. McConnell, certify that:

1. I have reviewed this Annual Report on Form 10-K for the fiscal year ended May 31, 2015 of Worthington Industries, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 30, 2015	By:	/s/    John P. McConnell
		John P. McConnell,
		Chairman of the Board and Chief Executive Officer

EX-31.2

Exhibit 31.2

RULE 13a-14(a) / 15d-14(a)

CERTIFICATIONS (PRINCIPAL FINANCIAL OFFICER)

CERTIFICATIONS

I, B. Andrew Rose, certify that:

1. I have reviewed this Annual Report on Form 10-K for the fiscal year ended May 31, 2015 of Worthington Industries, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 30, 2015	By:	/s/    B. Andrew Rose
		B. Andrew Rose,
		Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATIONS OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002*

In connection with the Annual Report of Worthington Industries, Inc. (the “Company”) on Form 10-K for the fiscal year ended May 31, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John P. McConnell, Chairman of the Board and Chief Executive Officer of the Company, certify, pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the consolidated financial condition and results of operations of the Company and its subsidiaries.

/s/    John P. McConnell

Printed Name: John P. McConnell

Title: Chairman of the Board and Chief Executive Officer

Date: July 30, 2015

* These certifications are being furnished as required by Rule 13a-14(b) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 1350 of Chapter 63 of Title 18 of the United States Code, and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that Section. These certifications shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent that Worthington Industries, Inc. specifically incorporates these certifications by reference.

EX-32.2

Exhibit 32.2

CERTIFICATIONS OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002*

In connection with the Annual Report of Worthington Industries, Inc. (the “Company”) on Form 10-K for the fiscal year ended May 31, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, B. Andrew Rose, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the consolidated financial condition and results of operations of the Company and its subsidiaries.

/s/    B. Andrew Rose

Printed Name: B. Andrew Rose

Title: Executive Vice President and Chief Financial Officer

Date: July 30, 2015

* These certifications are being furnished as required by Rule 13a-14(b) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 1350 of Chapter 63 of Title 18 of the United States Code, and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that Section. These certifications shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent that Worthington Industries, Inc. specifically incorporates these certifications by reference.

EX-99.1

Exhibit 99.1

WORTHINGTON ARMSTRONG VENTURE

Consolidated Financial Statements

December 31, 2014 and 2013

(With Independent Auditors’ Report Thereon)

WORTHINGTON ARMSTRONG VENTURE

Table of Contents

	Page
Independent Auditors’ Report		1
Consolidated Balance Sheets, December 31, 2014 and 2013		3
Consolidated Statements of Income and Comprehensive Income, Years ended December 31, 2014, 2013, and 2012		4
Consolidated Statements of Partners’ Deficit, Years ended December 31, 2014, 2013, and 2012		5
Consolidated Statements of Cash Flows, Years ended December 31, 2014, 2013, and 2012		6
Notes to Consolidated Financial Statements		7

KPMG LLP

1601 Market Street

Philadelphia, PA 19103-2499

Independent Auditors’ Report

The Board of Directors

Worthington Armstrong Venture:

We have audited the accompanying consolidated financial statements of Worthington Armstrong Venture and its subsidiaries, which comprise the consolidated balance sheets as of December 31, 2014 and 2013, and the related consolidated statements of income and comprehensive income, partners’ deficit, and cash flows for each of the years in the three-year period ended December 31, 2014, and the related notes to the consolidated financial statements.

Management’s Responsibility for the Financial Statements

Management is responsible for the preparation and fair presentation of these consolidated financial statements in accordance with accounting principles generally accepted in the United States of America; this includes the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of consolidated financial statements that are free from material misstatement, whether due to fraud or error.

Auditors’ Responsibility

Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free from material misstatement.

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the consolidated financial statements. The procedures selected depend on the auditors’ judgment, including the assessment of the risks of material misstatement of the consolidated financial statements, whether due to fraud or error. In making those risk assessments, the auditor considers internal control relevant to the entity’s preparation and fair presentation of the consolidated financial statements in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the entity’s internal control. Accordingly, we express no such opinion. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements.

We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion.

KPMG LLP is a Delaware limited liability partnership,

the U.S. member firm of KPMG International Cooperative

(“KPMG International”), a Swiss entity.

Opinion

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Worthington Armstrong Venture and its subsidiaries as of December 31, 2014 and 2013, and the results of their operations and their cash flows for each of the years in the three-year period ended December 31, 2014, in accordance with accounting principles generally accepted in the United States of America.

Philadelphia, Pennsylvania

February 16, 2015

2

WORTHINGTON ARMSTRONG VENTURE

Consolidated Balance Sheets

December 31, 2014 and 2013

(Dollar amounts in thousands)

Assets	2014			2013
Current assets:
Cash and cash equivalents	$	35,670			45,792
Short-term investments		6,274			3,493
Accounts receivable, net		27,967			34,532
Receivables from affiliates		8,819			—
Inventory, net		40,518			37,045
Other current assets		975			1,712
Total current assets		120,223			122,574
Property, plant, and equipment, net		37,111			36,608
Goodwill		2,429			2,716
Other assets		980			1,421
Total assets	$	160,743			163,319
Liabilities and Partners’ Deficit
Current liabilities:
Accounts payable	$	18,230			17,467
Accounts payable to affiliates		740			1,835
Accrued expenses		6,968			8,062
Taxes payable		391			1,003
Total current liabilities		26,329			28,367
Long-term liabilities:
Deferred income taxes		233			275
Long-term debt		238,000			238,500
Other long-term liabilities		5,129			2,141
Total long-term liabilities		243,362			240,916
Total liabilities		269,691			269,283
Partners’ deficit:
Contributed capital		—			—
Accumulated deficit		(99,187	)		(105,927	)
Accumulated other comprehensive loss		(9,761	)		(37	)
Total partners’ deficit		(108,948	)		(105,964	)
Total liabilities and partners’ deficit	$	160,743			163,319

See accompanying notes to consolidated financial statements.

3

WORTHINGTON ARMSTRONG VENTURE

Consolidated Statements of Income and Comprehensive Income

Years ended December 31, 2014, 2013, and 2012

(Dollar amounts in thousands)

	2014			2013			2012
Net sales	$	392,508			381,798			368,035
Cost of sales		(207,409	)		(208,924	)		(204,365	)
Gross margin		185,099			172,874			163,670
Selling, general, and administrative expenses		(33,500	)		(30,920	)		(29,120	)
		151,599			141,954			134,550
Other income (expense), net		(242	)		(631	)		(428	)
Interest income		551			631			689
Interest expense		(6,401	)		(6,321	)		(6,392	)
Income before income tax expense		145,507			135,633			128,419
Income tax expense		(3,267	)		(3,231	)		(2,913	)
Net income		142,240			132,402			125,506
Other comprehensive income (loss):
Change in pension plan		(2,145	)		1,369			(87	)
Change in cash flow hedge		(1,405	)		165			—
Foreign currency adjustments		(6,174	)		1,366			853
Total other comprehensive income (loss)		(9,724	)		2,900			766
Total comprehensive income	$	132,516			135,302			126,272

See accompanying notes to consolidated financial statements.

4

WORTHINGTON ARMSTRONG VENTURE

Consolidated Statements of Partners’ Deficit

Years ended December 31, 2014, 2013, and 2012

(Dollar amounts in thousands)

	Contributed capital
	Armstrong Ventures, Inc.		The Worthington Steel Company		Accumulated deficit			Accumulated other comprehensive income (loss)			Total partners’ deficit
Balance, December 31, 2011	$	—		—		(110,835	)		(3,703	)		(114,538	)
Net income		—		—		125,506			—			125,506
Distributions		—		—		(128,000	)		—			(128,000	)
Change in pension plan		—		—		—			(87	)		(87	)
Foreign currency translation adjustments		—		—		—			853			853
Balance, December 31, 2012		—		—		(113,329	)		(2,937	)		(116,266	)
Net income		—		—		132,402			—			132,402
Distributions		—		—		(125,000	)		—			(125,000	)
Change in pension plan		—		—		—			1,369			1,369
Change in cash flow hedge		—		—		—			165			165
Foreign currency translation adjustments		—		—		—			1,366			1,366
Balance, December 31, 2013		—		—		(105,927	)		(37	)		(105,964	)
Net income		—		—		142,240			—			142,240
Distributions		—		—		(135,500	)		—			(135,500	)
Change in pension plan		—		—		—			(2,145	)		(2,145	)
Change in cash flow hedge		—		—		—			(1,405	)		(1,405	)
Foreign currency translation adjustments		—		—		—			(6,174	)		(6,174	)
Balance, December 31, 2014	$	—		—		(99,187	)		(9,761	)		(108,948	)

See accompanying notes to consolidated financial statements.

5

WORTHINGTON ARMSTRONG VENTURE

Consolidated Statements of Cash Flows

Years ended December 31, 2014, 2013, and 2012

(Dollar amounts in thousands)

	2014			2013			2012
Cash flows from operating activities:
Net income	$	142,240			132,402			125,506
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		3,752			5,007			4,006
Deferred income taxes		(437	)		249			281
Changes in assets and liabilities:
Change in receivables		(2,083	)		2,975			(5,333	)
Change in inventory		(4,448	)		(1,159	)		3,351
Change in payables and accrued expenses		(1,991	)		3,247			1,297
Other		643			(1,750	)		(408	)
Net cash provided by operating activities		137,676			140,971			128,700
Cash flows from investing activities:
Purchases of property, plant, and equipment		(5,315	)		(7,390	)		(6,628	)
Sale of property, plant, and equipment		(18	)		1,359			70
Short-term investments		(2,913	)		(3,493	)		—
Acquisition of business, net of cash acquired		—			(205	)		—
Net cash used in investing activities		(8,246	)		(9,729	)		(6,558	)
Cash flows from financing activities:
Proceeds from revolving credit facility		150,663			141,000			139,500
Issuance of long-term debt		—			50,000			—
Repayment of revolving credit facility		(151,163	)		(190,500	)		(138,500	)
Financing cost		—			(863	)		—
Distributions paid		(135,500	)		(125,000	)		(128,000	)
Net cash used in financing activities		(136,000	)		(125,363	)		(127,000	)
Effect of exchange rate changes on cash and cash equivalents		(3,552	)		1,415			811
Net increase (decrease) in cash and cash equivalents		(10,122	)		7,294			(4,047	)
Cash and cash equivalents at beginning of year		45,792			38,498			42,545
Cash and cash equivalents at end of year	$	35,670			45,792			38,498
Supplemental disclosures:
Interest paid	$	6,162			5,421			6,309
Income taxes paid		3,370			2,369			2,760

See accompanying notes to consolidated financial statements.

6

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

(1) Description of Business

Worthington Armstrong Venture (the Company) is a general partnership, formed in June 1992, between Armstrong Ventures, Inc. (Armstrong), a subsidiary of Armstrong World Industries, Inc., and The Worthington Steel Company (Worthington), a Delaware corporation (a subsidiary of Worthington Industries, Inc.). Its business is to manufacture and market suspension systems for commercial and residential ceiling markets throughout the world. The Company has manufacturing plants located in the United States, France, the United Kingdom, the People’s Republic of China, and India.

The Company closed its manufacturing plant in Spain during 2013 transferring its production capabilities to other European locations. The total cost of the plant closure was $3,934, which included $2,009 severance pay, $1,278 capital and inventory obsolescence, and $647 other closing related costs. All closing costs were incurred and expensed during 2013 and recorded in cost of goods sold.

(2) Summary of Significant Accounting Policies

(a) Use of Estimates

These consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) and include management estimates and judgments, where appropriate. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include the carrying amount of property, plant, and equipment and goodwill, valuation allowances for receivables and inventories, valuation of derivatives, and assets and obligations related to employee benefits.

The consolidated financial statements include the accounts of the Company and its subsidiaries. All significant intercompany transactions have been eliminated.

(b) Revenue Recognition

The Company recognizes revenue from the sale of products when title transfers, generally on the date of shipment and collection of the relevant receivable is probable. At the time of shipment, a provision is made for estimated applicable discounts and losses that reduce revenue. Sales with independent U.S. distributors of products to major home center retailers are recorded when the products are shipped from the distributor’s locations to these retailers.

Sales taxes collected from customers and remitted to governmental authorities are accounted for on a net basis and, therefore, are excluded from revenues in the consolidated statements of income and comprehensive income.

(c) Derivative Instruments and Hedging Activities

The Company recognizes all derivative instruments as either assets or liabilities in the balance sheet at their respective fair values. For derivatives designated in hedging relationships, changes in the fair value are recognized in accumulated other comprehensive income, to the extent the derivative is effective at offsetting the changes in cash flows being hedged until the hedged item affects earnings. For derivatives not designated as hedges or that do not meet the criteria for hedge accounting, all changes in fair value are recorded immediately to profit or loss.

(Continued)

7

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

(d) Advertising Costs

The Company recognizes advertising expense as incurred. Advertising expense was $1,049, $940, and $951 for the years ended December 31, 2014, 2013, and 2012, respectively.

(e) Research and Development Expenditures

The Company recognizes research and development expense as expenditures are incurred. Total research and development expense was $4,065, $3,811, and $3,185 for the years ended December 31, 2014, 2013, and 2012, respectively.

(f) Taxes

The Company is a general partnership in the United States, and accordingly, generally, U.S. federal and state income taxes are the responsibility of the two general partners. Deferred income tax assets and liabilities are recognized for foreign subsidiaries for taxes estimated to be payable in future years based upon differences between the financial reporting and tax bases of assets and liabilities. Deferred tax assets and liabilities are determined using enacted rates expected to apply to taxable income in the years the temporary differences are expected to be recovered or settled. The Company recognizes the effect of uncertain income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.

(g) Cash and Cash Equivalents

Short-term cash investments that have original maturities of three months or less when purchased are considered to be cash equivalents.

(h) Trade Accounts Receivable

Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The Company maintains an allowance for doubtful accounts for estimated losses inherent in its accounts receivable portfolio. In establishing the required allowance, management considers historical losses, current receivables aging, and existing industry and national economic data. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. The Company does not have any off-balance-sheet credit exposure related to its customers.

(i) Inventories

Inventories are valued at the lower of cost or market. Cost is determined on the first-in, first-out method.

(Continued)

8

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

(j) Long-Lived Assets

Property, plant, and equipment are stated at cost, with accumulated depreciation and amortization deducted to arrive at net book value. Depreciation charges are determined generally on the straight-line basis over the useful lives as follows: buildings, 30 years; machinery and equipment, 5 to 15 years; and leasehold improvements over the shorter of 10 years or the life of the lease. Impairment losses are recorded when indicators of impairment are present and the undiscounted cash flows estimated to be generated by those assets are less than the assets’ carrying amount. If an impairment exists, the asset is reduced to fair value.

(k) Goodwill

Goodwill represents the excess of the aggregate purchase price over the fair value of the net assets acquired in a purchase business combination. Goodwill is tested for impairment at least annually. The impairment tests performed in 2014, 2013, and 2012 did not result in an impairment of the Company’s goodwill.

(l) Foreign Currency Translation and Transactions

For subsidiaries with functional currencies other than the U.S. dollar, income statement items are translated into dollars at average exchange rates throughout the year and balance sheet items are translated at year-end exchange rates. Gains or losses on foreign currency transactions are recognized in other income (expense), net in the accompanying consolidated statements of income. Gains and losses on foreign currency translation are recognized in accumulated other comprehensive income in the accompanying consolidated balance sheets.

(m) Recently Adopted Accounting Standards

During 2014, the Company adopted guidance which is now part of Accounting Standards Codification (ASC) 220: Comprehensive Income. The guidance requires an entity to disclose in a single location the effects of reclassifications out of accumulated other comprehensive income (AOCI). For items reclassified out of AOCI and into net income in their entirety, entities must disclose the effect of the reclassification on each affected net income item. For AOCI reclassification items that are not reclassified in their entirety into net income, entities must provide a cross reference to other required U.S. GAAP disclosures. The standard does not change the items which must be reported in other comprehensive income. There was no impact on the Company’s financial condition, results of operations or cash flows as a result of the adoption of this guidance.

(3) Accounts Receivable

The Company sells its products to select, preapproved customers whose businesses are directly affected by changes in economic and market conditions. The Company considers these factors and the financial condition of each customer when establishing its allowance for losses from doubtful accounts. The allowance for doubtful accounts was $622 and $679, at December 31, 2014 and 2013, respectively.

(Continued)

9

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

(4) Inventory

	2014		2013
Finished goods	$	14,420		14,018
Goods in process		206		24
Raw materials		22,137		19,098
Supplies		3,755		3,905
Total inventory, net of reserves	$	40,518		37,045

(5) Derivative Instruments and Hedging Activities

The Company uses an interest rate swap to manage its exposure related to changes in interest rates on its variable-rate private placement note and uses derivative instruments to manage its exposure to steel price fluctuations.

The private placement note through New York Life Insurance Company is variable-rate London Interbank Offered Rate (LIBOR) debt. The debt obligation exposes the Company to variability in interest payments due to changes in interest rates. On July 16, 2013, the Company entered into a LIBOR-based interest rate swap agreement to manage fluctuations in cash flows resulting from changes in the benchmark interest rate of LIBOR. The swap changes the variable-rate cash flow exposure on the private placement note to fixed cash flows. Under the terms of the interest rate swap, the Company receives LIBOR-based variable interest rate payments and makes fixed interest rate payments, thereby creating the equivalent of fixed-rate debt for the notional amount of its debt hedged. The swap has a notional amount of $50,000 maturing in July 2020, under the terms of which the Company pays a fixed rate of 2.136% and receives one-month LIBOR. This swap is designed as a cash flow hedge.

In 2013, the Company entered into contracts with Worthington as the counterparty to manage the price risk associated with fluctuations in market prices for steel. These contracts do not meet the requirements to qualify for hedge accounting. Accordingly, the steel derivatives are adjusted to current fair value at the end of each period through earnings. As of December 31, 2014, the Company had no outstanding steel derivatives. The loss on the steel derivatives recognized in earnings within cost of goods sold for the year ended December 31, 2014 was $1. As of December 31, 2013, the Company had outstanding steel derivatives of 4,800 tons with a notional value of $3,077. The gain on the steel derivatives recognized in earnings within the cost of goods sold for the year ended December 31, 2013 was $10.

(Continued)

10

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

The fair values of derivative instruments held as of December 31, 2014 and 2013 are as follows:

	2014				2013
	B/S Location	Fair value			B/S Location	Fair value
Derivatives designated as hedging instruments:
Interest contract	Other assets	$	—		Other assets	$	165
	Long-term liabilities		(1,240	)	Long-term liabilities		—
Total derivatives designated as hedging instruments			(1,240	)			165
Derivatives not designated as hedging instruments:
Steel derivatives	Other current assets		—		Other current assets		10
Total derivatives not designated as hedging instruments			—				10
Total derivatives		$	(1,240	)		$	175

As of December 31, 2014, the amount of loss recognized in accumulated other comprehensive income was $1,240. As of December 31, 2013 the amount of gain recognized in accumulated other comprehensive income was $165.

(6) Property, Plant, and Equipment

	2014			2013
Land	$	1,687			1,780
Buildings		17,734			17,353
Machinery and equipment		76,687			75,253
Computer software		1,152			1,234
Construction in process		5,524			5,542
		102,784			101,162
Accumulated depreciation and amortization		(65,673	)		(64,554	)
Total property, plant, and equipment, net	$	37,111			36,608

(Continued)

11

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

Depreciation and amortization expense was $3,752, $5,007, and $4,006 for the years ended December 31, 2014, 2013, and 2012, respectively.

(7) Goodwill

Foreign currency translation impact increased (decreased) goodwill by $(287), $81, and $45 during 2014, 2013, and 2012, respectively.

(8) Fair Value of Financial Instruments

The Company does not hold or issue financial instruments for trading purposes.

The carrying amounts of cash and cash equivalents, short-term investments, accounts receivable, and accounts payable approximate their fair value due to the short-term maturity of these instruments. The carrying value and estimated fair value of debt was $238,000 and $239,500, respectively, at December 31, 2014. The carrying value and estimated fair value of debt was $238,500 and $234,500, respectively, at December 31, 2013.

The fair value of the Company’s debt is based on the amount of future cash flows discounted using rates the Company would currently be able to realize for similar instruments of comparable maturity.

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. The three levels of inputs used to measure fair value are as follows:

Level 1 — Quoted prices in active markets for identical assets or liabilities.

Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies, and similar techniques that use significant unobservable inputs.

(Continued)

12

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

Assets measured at fair value on a recurring basis are summarized below:

	Quoted active markets (Level 1)
	2014		2013
Assets:
Money market investments (included within cash and cash equivalents)	$	21,694		16,024
Short-term investments		6,274		3,493
	$	27,968		19,517

The Company’s derivatives are valued using Level 2 inputs. The fair values are disclosed in note 5. The Company does not have any significant financial or nonfinancial assets or liabilities that are valued using Level 3 inputs.

(9) Debt

The Company has a $200,000 revolving credit facility (Facility) with PNC Bank and other lenders that was extended for five years on October 24, 2013. As of December 31, 2014 and 2013, there was $138,000 and $138,500, respectively, outstanding under the Facility. The Company can borrow at rates with a range over LIBOR of 1.125% to 1.75%, depending on the Company’s leverage ratio, as defined by the terms of the Facility. As of December 31, 2014 and 2013, the rate was 1.42% and 1.42%, respectively.

On July 1, 2013, the Company issued $50,000 of private placement floating rate debt through New York Life Insurance Company. The seven-year notes (NY Life Notes) mature on July 1, 2020. The NY Life Notes bear interest at a rate of one-month LIBOR plus a spread of 150bps. At December 31, 2014 and 2013, there was $50,000 outstanding.

On December 23, 2011, the Company issued $50,000 of 10-year private placement notes (Prudential Notes) with Prudential Insurance Company that mature in December 2021. At December 31, 2014 and 2013, there was $50,000 outstanding. The Prudential Notes bear interest at 4.9% that is paid on a quarterly basis.

The debt agreements contain certain restrictive financial covenants, including, among others, interest coverage and leverage ratios. The Company was in compliance with its covenants during the years ended and as of December 31, 2014 and 2013.

(10) Pension Benefit Programs

The Company contributes to the Worthington Industries Deferred Profit Sharing Plan for eligible U.S. employees. Costs for this plan were $1,284, $1,160, and $1,106 for 2014, 2013, and 2012, respectively.

The Company contributes to government-related pension programs in a number of foreign countries. The cost for these plans amounted to $504, $514, and $488 for 2014, 2013, and 2012, respectively.

(Continued)

13

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

The Company also has a U.S. defined-benefit pension plan for eligible hourly employees that worked in its former manufacturing plant located in Malvern, Pennsylvania. This plan was curtailed in January 2004 due to the consolidation of the Company’s East Coast operations, which eliminated the expected future years of service for participants in the plan.

The following tables set forth the defined-benefit pension plan’s benefit obligations, fair value of plan assets, and funded status at December 31, 2014 and 2013:

	2014			2013
Projected benefit obligation at beginning of year	$	9,907			10,157
Interest cost		479			438
Actuarial (gain) loss		2,059			(38	)
Benefits paid		(650	)		(650	)
Projected benefit obligation at end of year	$	11,795			9,907
	2014			2013
Benefit obligation at December 31	$	11,795			9,907
Fair value of plan assets as of December 31		8,758			8,552
Funded status at end of year	$	(3,037	)		(1,355	)
Amounts recognized in the balance sheets consist of:
Other long-term liabilities	$	(3,037	)		(1,355	)
Accumulated other comprehensive loss		6,187			4,042
Net amount recognized	$	3,150			2,687

Amounts recognized in accumulated other comprehensive loss represent unrecognized net actuarial losses.

The components of net periodic benefit cost (benefit) are as follows:

	2014			2013			2012
Interest cost	$	479			438			422
Expected return on plan assets		(620	)		(507	)		(438	)
Recognized net actuarial loss		254			357			302
Net periodic benefit cost	$	113			288			286

The accumulated benefit obligation for the U.S. defined-benefit pension plan was $11,795 and $9,907 at December 31, 2014 and 2013, respectively. The unrecognized net loss for the defined-benefit pension plan that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year is $260.

(Continued)

14

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

Mortality assumptions for participants in the U.S. pension plan incorporate future mortality improvements from tables published by the Society of Actuaries (SOA). In October 2014, the SOA issued new mortality tables that raise life expectancies and thereby indicate the amount of estimated total benefit payments to the U.S. pension plan’s participants is increasing. The Company has incorporated the new SOA mortality tables into the December 31, 2014 measurement of the U.S. pension plan’s benefit obligation. The change in these assumptions had the effect of increasing the December 31, 2014 U.S. pension plan’s obligations by $700.

Weighted average assumptions used to determine benefit obligations for the years ended and as of December 31, 2014 and 2013 are as follows:

	2014			2013
Weighted average assumptions for the year ended December 31:
Discount rate		4.95	%		4.00	%
Expected long-term rate of return on plan assets		7.25			7.25
Weighted average assumptions as of December 31:
Discount rate		3.95	%		4.95	%
Expected long-term rate of return on plan assets		7.25			7.25

Pension plan assets are required to be disclosed at fair value in the consolidated financial statements. Fair value is defined in note 7 – Fair Value of Financial Instruments.

The U.S. defined-benefit pension plan assets’ fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

The following tables set forth by level within the fair value hierarchy a summary of the plan’s assets measured at fair value on a recurring basis as of December 31, 2014 and 2013, respectively:

			2014
			Fair value based on
	Fair value		Quoted active markets (Level 1)		Observable inputs (Level 2)
Investment:
Cash and money market funds	$	885		885
Corporate bonds		849		—		849
U.S. government and agency issues		519		—		519
Common stocks		6,505		6,505
	$	8,758		7,390		1,368

(Continued)

15

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

			2013
			Fair value based on
	Fair value		Quoted active markets (Level 1)		Observable inputs (Level 2)
Investment:
Cash and money market funds	$	925		925		—
Corporate bonds		847		—		847
U.S. government and agency issues		552		—		552
Common stocks		6,228		6,228		—
	$	8,552		7,153		1,399

Following is a description of the valuation methodologies used for assets measured at fair value. There have been no changes in the methodologies used at December 31, 2014 and 2013.

Cash: Consists of cash and cash equivalents. The carrying amounts of cash and cash equivalents approximate fair value due to the short-term maturity of these instruments.

Money market funds: The money market investment consists of an institutional investor money market fund, valued at the fund’s net asset value (NAV), which is normally calculated at the close of business daily. The fund’s assets are valued as of this time for the purpose of computing the fund’s NAV.

Corporate bonds and U.S. government and agency issues: Consist of investments in individual corporate bonds or government bonds. These bonds are each individually valued using a yield curve model, based on observable inputs, which may also incorporate available trade and bid/ask spread data where available.

Common stocks: Consist of investments in common stocks that are valued at the closing price reported on the active market on which the individual security is traded.

In developing the 7.25% expected long-term rate of return assumption, the Company considered its historical returns and reviewed asset class return expectations and long-term inflation assumptions.

The primary investment objective of the defined-benefit pension plan is to achieve long-term growth of capital in excess of 7.25% annually, exclusive of contributions or withdrawals. This objective is to be achieved through a balanced portfolio comprising equities, fixed income, and cash investments.

(Continued)

16

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

Each asset class utilized by the defined-benefit pension plan has a targeted percentage. The following table shows the asset allocation target and the December 31, 2014 and 2013 position:

				Position at December 31
	Target weight			2014			2013
Equity securities		65	%		75	%		73	%
Fixed income securities		35			15			16
Cash and equivalents		—			10			11

The Company made contributions of $576, $906, and $1,096 to the U.S. defined-benefit pension plan in 2014, 2013, and 2012, respectively. The Company expects to contribute $692 to the plan in 2014.

The benefits expected to be paid in each of the next five years and in the aggregate for the five years thereafter are shown in the following table:

Expected future payments for the year(s) ending December 31:
2015	$	656
2016		645
2017		638
2018		639
2019		645
2020 – 2024		3,300

The expected benefits are based on the same assumptions used to measure the Company’s benefit obligation at December 31, 2014.

(11) Income Taxes

The Company is a general partnership in the United States, and accordingly, generally, U.S. federal and state income taxes are the responsibility of the two general partners. Therefore, no income tax provision has been recorded on U.S. income. There are no significant differences between the statutory income tax rates in foreign countries where the Company operates and the income tax provision recorded in the income statements. No deferred taxes, including withholding taxes, have been provided on the unremitted earnings of foreign subsidiaries as the Company’s intention is to invest these earnings permanently.

Deferred tax balances recorded on the balance sheets relate primarily to depreciation and other timing differences such as pensions and inventories. In 2014, the provision for income tax expense was $3,267 comprising $3,286 current and $(19) deferred. In 2013, the provision for income tax expense was $3,231 comprising $3,295 current and $(64) deferred. In 2012, the provision for income tax expense was $2,913 comprising $2,784 current and $129 deferred.

(Continued)

17

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

The Company is open for tax examination by foreign taxing authorities for various jurisdictions from 2009–2013. There is no reserve related to these tax years.

(12) Leases

The Company rents certain real estate and equipment. Several leases include options for renewal or purchase and contain clauses for payment of real estate taxes and insurance. In most cases, management expects that in the normal course of business, leases will be renewed or replaced by other leases. Minimum rent payments under operating leases are recognized on a straight-line basis over the term of the lease including any periods of free rent. Rent expense during 2014, 2013, and 2012 amounted to $2,581, $2,835, and $2,521, respectively.

Future minimum payments by year and in the aggregate for operating leases having noncancelable lease terms in excess of one year are as follows:

Year:
2015	$	2,570
2016		2,332
2017		2,334
2018		2,255
2019		1,934
Thereafter		4,424
Total	$	15,849

(13) Accumulated Other Comprehensive Income (Loss)

The balances for accumulated other comprehensive income (loss) are as follows:

	2014			2013
Foreign currency translation	$	(2,334	)		3,840
Cash flow hedge		(1,240	)		165
Pension plan		(6,187	)		(4,042	)
Total accumulated other comprehensive loss	$	(9,761	)		(37	)

(Continued)

18

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

The following table summarizes the activity, by component, related to the change in AOCI for December 31, 2014:

	Foreign currency translation			Cash flow hedge			Pension plan			Accumulated other comprehensive (loss)
Balance, December 31, 2013	$	3,840			165			(4,042	)		(37	)
Other comprehensive (loss) before reclassifications		(6,174	)		(1,405	)		(2,298	)		(9,877	)
Amounts reclassified from accumulated other comprehensive income		—			—			153			153
Net current period other comprehensive (loss)		(6,174	)		(1,405	)		(2,145	)		(9,724	)
Balance, December 31, 2014	$	(2,334	)		(1,240	)		(6,187	)		(9,761	)

The amount reclassified from AOCI was recorded in cost of goods sold in the consolidated statements of income and comprehensive income.

(14) Related Parties

Armstrong provides certain selling, promotional, and administrative processing services to the Company for which it receives reimbursement. Armstrong purchases grid products from the Company, which are then resold along with Armstrong inventory to the customer. In 2013, the Company sold $820 of equipment and materials to Armstrong at their net book value and no gain or loss was recognized on transactions. No equipment and materials were sold to Armstrong in 2014.

	2014		2013		2012
Services provided by Armstrong	$	14,651		14,892		14,575
Sales to Armstrong		85,217		88,851		89,299

The Company owed $336 and $2,272 to Armstrong as of December 31, 2014 and 2013, respectively, which is included in accounts payable to affiliates. Armstrong owed the Company $8,819 and $952 for purchases of product as of the same periods, respectively. The Company owed $404 and $515 to Worthington as of December 31, 2014 and 2013, respectively, which are included in accounts payable to affiliates.

(Continued)

19

WORTHINGTON ARMSTRONG VENTURE

Notes to Consolidated Financial Statements

December 31, 2014 and 2013

(Dollar amounts in thousands)

Worthington provides certain administrative processing services, steel processing services, and insurance-related coverages to the Company for which it receives reimbursement.

	2014		2013		2012
Administrative services by Worthington	$	441		425		464
Insurance-related coverage net of premiums by Worthington		641		648		647
Steel processing services by Worthington		587		1,649		1,590

(15) Legal Proceedings

The Company is involved in various claims and legal actions arising in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on the Company’s consolidated financial position, results of operations, or liquidity.

(16) Business and Credit Concentrations

Approximately, 16%, 16%, and 15% of net sales were to the Company’s largest third-party customer for 2014, 2013, and 2012, respectively. The Company’s 10 largest third-party customers accounted for approximately 50%, 50%, and 42% of the Company’s net sales for 2014, 2013, and 2012 respectively, and approximately 41% and 46% of the Company’s accounts receivable balances at December 31, 2014 and 2013, respectively. See note 14 for sales to and amounts owed to the Company from Armstrong.

(17) Subsequent Events

Management has evaluated subsequent events through the date the annual consolidated financial statements were available to be issued, February 16, 2015.

20

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Stock-Based Compensation (Tables)

12 Months Ended

May. 31, 2015

Summary of Stock Option Activity

The following tables summarize our stock option activity for the years ended May 31:

	2015					2014					2013
(in thousands, except per share)	Stock Options			Weighted Average Exercise Price		Stock Options			Weighted Average Exercise Price		Stock Options			Weighted Average Exercise Price
Outstanding, beginning of year		4,752		$	17.58		5,517		$	17.19		7,511			16.65
Granted		97			42.95		130			32.21		1,034			20.83
Exercised		(758	)		17.24		(828	)		17.39		(2,858	)		17.18
Forfeited		(47	)		17.00		(67	)		16.13		(170	)		15.86
Outstanding, end of year		4,044			18.25		4,752			17.58		5,517			17.19
Exercisable at end of year		3,276			17.63		2,996			17.57		2,682			17.70

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

	Number of Stock Options (in thousands)		Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
May 31, 2015
Outstanding		4,044		4.82	$	38,277
Exercisable		3,276		4.42		31,625
May 31, 2014
Outstanding		4,752		5.50	$	107,970
Exercisable		2,996		4.67		68,108
May 31, 2013
Outstanding		5,517		6.06	$	94,860
Exercisable		2,682		4.50		44,752

Summary of Non-Vested Stock Option Awards

The following table summarizes information about non-vested stock option awards for fiscal 2015:

	Number of Stock Options (in thousands)			Weighted Average Grant Date Fair Value Per Share
Non-vested, beginning of year		1,756		$	6.38
Granted		97			15.98
Vested		(1,038	)		6.32
Forfeited		(47	)		6.33
Non-vested, end of year		768		$	7.66

Summarize of Restricted Common Share Activity

The following tables summarize our restricted common share activity for the years ended May 31:

	2015					2014					2013
(in thousands, except per share)	Restricted Common Shares			Weighted Average Grant Date Fair Value		Restricted Common Shares			Weighted Average Grant Date Fair Value		Restricted Common Shares			Weighted Average Grant Date Fair Value
Outstanding, beginning of year		573		$	28.36		399		$	18.74		513			17.08
Granted		240			40.05		380			33.14		121			20.76
Vested		(142	)		23.32		(185	)		17.17		(233	)		16.10
Forfeited		(36	)		32.62		(21	)		30.70		(2	)		22.09
Outstanding, end of year		635			33.65		573			28.36		399			18.74
Weighted average remaining contractual life of out standing restricted common shares (in years)		1.41					1.61					1.31
Aggregate intrinsic value of outstanding restricted common shares	$	17,269				$	23,112				$	13,701
Aggregate intrinsic value of restricted common shares vested during the year	$	5,400				$	7,499				$	5,559

Performance Shares Granted

The table below sets forth the performance shares we granted (at target levels) during fiscal 2015, fiscal 2014, and fiscal 2013:

(in thousands, except per share amounts)	2015		2014		2013
Granted		61		59		108
Weighted average grant date fair value, per share	$	42.71	$	33.33	$	22.08
Pre-tax stock-based compensation	$	2,611	$	1,958	$	2,383

Non-Qualified Stock Options

Non-Qualified Stock Options Granted

The table below sets forth the non-qualified stock options granted during each of the last three fiscal years. For each grant, the exercise price was equal to the closing market price of the underlying common shares at each respective grant date. The fair values of these stock options were based on the Black-Scholes option pricing model, calculated at the respective grant dates. The calculated pre-tax stock-based compensation expense for these stock options, which is after an estimate of forfeitures, will be recognized on a straight-line basis over the respective vesting periods of the stock options.

(in thousands, except per share amounts)	2015		2014		2013
Granted		97		130		1,034
Weighted average exercise price, per share	$	42.95	$	32.21	$	20.83
Weighted average grant date fair value, per share	$	17.96	$	12.92	$	7.71
Pre-tax stock-based compensation	$	1,553	$	1,539	$	7,165

Assumptions to Value Stock Options

The weighted average fair value of stock options granted in fiscal 2015, fiscal 2014 and fiscal 2013 was based on the Black-Scholes option pricing model with the following weighted average assumptions:

	2015			2014			2013
Assumptions used:
Dividend yield		1.88	%		2.28	%		2.95	%
Expected volatility		50.92	%		52.23	%		52.88	%
Risk-free interest rate		1.88	%		1.69	%		0.91	%
Expected life (years)		6.0			6.0			6.0

Service-Based Restricted Common Shares

Service-Based Restricted Common Shares Granted

The table below sets forth the restricted common shares we granted during each of fiscal 2015, fiscal 2014, and fiscal 2013. The calculated pre-tax stock-based compensation expense for these restricted common shares will be recognized on a straight-line basis over their respective vesting periods.

(in thousands, except per share amounts)	2015		2014		2013
Granted		240		380		121
Weighted average grant date fair value, per share	$	40.05	$	33.14	$	20.77
Pre-tax stock-based compensation	$	8,660	$	11,307	$	2,299

Market-Based Restricted Common Shares

Assumptions to Value Stock Options

The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	1.60	%
Expected volatility	44.00	%
Risk-free interest rate	1.70	%

 The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	2.28	%
Expected volatility	53.40	%
Risk-free interest rate	1.41	%

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Assets Measured at Fair Value on Non-recurring Basis (Parenthetical) (Detail) - USD ($)	3 Months Ended														12 Months Ended
	May. 31, 2015		Feb. 28, 2015		Nov. 30, 2014		Aug. 31, 2014	[1]	May. 31, 2014		Nov. 30, 2013	[1]	Aug. 31, 2013	[1]	May. 31, 2015		May. 31, 2014		May. 31, 2013
Fair Value [Line Items]
Impairment of long-lived assets	$ 2,344,000	[1]	$ 81,600,000	[1]	$ 14,235,000	[1]	$ 1,950,000		$ 22,871,000	[1]	$ 30,734,000		$ 4,641,000		$ 100,129,000		$ 58,246,000		$ 6,488,000
Asset measured at fair value on nonrecurring basis	$ 12,403,000								32,074,000						$ 12,403,000		$ 32,074,000
Worthington Nitin Cylinders
Fair Value [Line Items]
Impairment of long-lived assets									$ 18,959,000
Worthington Nitin Cylinders | Joint Venture Transactions
Fair Value [Line Items]
Impairment of long-lived assets					6,346,000
Ownership interest in joint venture	60.00%								60.00%						60.00%		60.00%
Zhejiang Nisshin Worthington Precision Specialty Steel Co
Fair Value [Line Items]
Impairment of long-lived assets									$ 7,141,000
Engineered Cabs
Fair Value [Line Items]
Impairment of long-lived assets					$ 2,389,000
Customer relationships | Engineered Cabs
Fair Value [Line Items]
Impairment of long-lived assets			22,356,000
Asset measured at fair value on nonrecurring basis			2,000,000
DHybrid Systems Llc
Fair Value [Line Items]
Impairment of long-lived assets	$ 2,344,000
Asset measured at fair value on nonrecurring basis	600,000														$ 600,000
Noncontrolling Interest | Worthington Nitin Cylinders
Fair Value [Line Items]
Impairment of long-lived assets									7,583,000
Global Group
Fair Value [Line Items]
Impairment of long-lived assets									1,412,000
Florence Facility | Engineered Cabs
Fair Value [Line Items]
Impairment of long-lived assets			14,311,000
Asset measured at fair value on nonrecurring basis			$ 9,803,000
Long-lived Assets Held and Used
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis	$ 12,403,000	[2]							7,034,000	[3]					$ 12,403,000	[2]	$ 7,034,000	[3]
Long-lived Assets Held and Used | Worthington Nitin Cylinders
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis									5,925,000								5,925,000		$ 6,856,000
Long-lived Assets Held and Used | Worthington Nitin Cylinders | Joint Venture Transactions
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis									5,925,000								5,925,000
Long-lived Assets Held and Used | Zhejiang Nisshin Worthington Precision Specialty Steel Co
Fair Value [Line Items]
Net asset									19,115,000								19,115,000
Long-lived Assets Held and Used | Global Group
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis									$ 7,034,000								$ 7,034,000

[1] For additional information regarding the Company's impairment charges, refer to "Note C - Goodwill and Other Long-Lived Assets."

[2] During the fourth quarter of fiscal 2015, the Company determined that indicators of impairment were present with regard to intangible assets related to our CNG fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value of $600,000, resulting in an impairment charge of $2,344,000. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate. During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs operating segment was necessary. Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs operating segment for recoverability. Recoverability was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence, South Carolina facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values of $2,000,000 and $9,803,000. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements. The key assumptions that drove the fair value calculations were projected cash flows and the discount rate.

[3] During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company's aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. Market observable, Level 2 inputs are used to determine fair value.

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Goodwill and Other Long-Lived Assets - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended															12 Months Ended
	Oct. 31, 2012	May. 31, 2015		Feb. 28, 2015		Nov. 30, 2014		Aug. 31, 2014	[1]	May. 31, 2014		Nov. 30, 2013	[1]	Aug. 31, 2013		May. 31, 2013	May. 31, 2015		May. 31, 2014		May. 31, 2013
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets		$ 2,344	[1]	$ 81,600	[1]	$ 14,235	[1]	$ 1,950		$ 22,871	[1]	$ 30,734		$ 4,641	[1]		$ 100,129		$ 58,246		$ 6,488
Expected future severance expense				2,400
Goodwill written-off																	44,933
Goodwill		238,999								251,093						$ 213,858	238,999		251,093		213,858
Asset measured at fair value on nonrecurring basis		12,403								32,074							12,403		32,074
Gain/loss on sale of assets																	2,338		(10,589)
Amortization expense																	$ 20,422		17,386		10,467
Minimum
Goodwill And Other Intangible Assets [Line Items]
Definite-lived intangible assets, estimated useful lives																	1 year
Maximum
Goodwill And Other Intangible Assets [Line Items]
Definite-lived intangible assets, estimated useful lives																	20 years
Non Core Steel Processing Assets
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets																	$ 3,050
Pressure Cylinders
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets	$ 1,520													$ 1,570			11,911		32,005		6,488
Goodwill		226,761								200,509						163,274	226,761		200,509		163,274
Gain/loss on sale of assets	$ 50
Worthington Nitin Cylinders
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets										18,959
Impairment of long-lived assets																4,968
Worthington Nitin Cylinders | Noncontrolling Interest
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets										7,583
Impairment of long-lived assets										7,583						1,987
Long-lived Assets Held and Used
Goodwill And Other Intangible Assets [Line Items]
Asset measured at fair value on nonrecurring basis		$ 12,403	[2]							7,034	[3]						$ 12,403	[2]	7,034	[3]
Long-lived Assets Held and Used | Worthington Nitin Cylinders
Goodwill And Other Intangible Assets [Line Items]
Asset measured at fair value on nonrecurring basis										$ 5,925						$ 6,856			$ 5,925		$ 6,856
Joint Venture Transactions | Worthington Nitin Cylinders
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets						6,346
Percent of controlling interest by the Company		60.00%								60.00%							60.00%		60.00%
Impairment of long-lived assets										$ 18,959
Joint Venture Transactions | Long-lived Assets Held and Used | Worthington Nitin Cylinders
Goodwill And Other Intangible Assets [Line Items]
Asset measured at fair value on nonrecurring basis										5,925									$ 5,925
Engineered Cabs
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets						2,389
Goodwill written-off				44,933
Goodwill				0
Gain(loss)on sale of business				332
Engineered Cabs | Florence Facility
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets				14,311
Asset measured at fair value on nonrecurring basis				9,803
Engineered Cabs | Customer relationships
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets				22,356
Asset measured at fair value on nonrecurring basis				$ 2,000
Aluminum High Pressure Cylinder Business
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets						3,221				1,412
Gain(loss)on sale of business																	$ (2,670)
Aluminum High Pressure Cylinder Business | Long-lived Assets Held and Used
Goodwill And Other Intangible Assets [Line Items]
Asset measured at fair value on nonrecurring basis										7,034									7,034
Military Construction Business
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets						$ 1,179
CNG Fuel Systems Business
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets		$ 2,344
Zhejiang Nisshin Worthington Precision Specialty Steel Co
Goodwill And Other Intangible Assets [Line Items]
Impairment of long-lived assets										7,141
Zhejiang Nisshin Worthington Precision Specialty Steel Co | Long-lived Assets Held and Used
Goodwill And Other Intangible Assets [Line Items]
Net asset										$ 19,115									$ 19,115

[1] For additional information regarding the Company's impairment charges, refer to "Note C - Goodwill and Other Long-Lived Assets."

[2] During the fourth quarter of fiscal 2015, the Company determined that indicators of impairment were present with regard to intangible assets related to our CNG fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value of $600,000, resulting in an impairment charge of $2,344,000. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate. During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs operating segment was necessary. Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs operating segment for recoverability. Recoverability was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence, South Carolina facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values of $2,000,000 and $9,803,000. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements. The key assumptions that drove the fair value calculations were projected cash flows and the discount rate.

[3] During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company's aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. Market observable, Level 2 inputs are used to determine fair value.

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Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

May. 31, 2015

Summary of Unaudited Quarterly Consolidated Results of Operations

The following table summarizes the unaudited quarterly consolidated results of operations for fiscal 2015 and fiscal 2014:

(in thousands, except per share)	Three Months Ended
Fiscal 2015	August 31		November 30		February 28			May 31
Net sales	$	862,414	$	871,012	$	804,785		$	846,023
Gross margin		129,507		125,223		98,491			110,312
Impairment of goodwill and long-lived assets (1)		1,950		14,235		81,600			2,344
Net earnings (loss)		48,820		31,455		(23,243	)		30,226
Net earnings (loss) attributable to controlling interest		44,168		29,462		(25,710	)		28,865
Earnings (loss) per share - basic	$	0.65	$	0.44	$	(0.39	)	$	0.45
Earnings (loss) per share - diluted		0.63		0.43		(0.39	)		0.44
Fiscal 2014	August 31		November 30		February 28			May 31
Net sales	$	692,291	$	769,900	$	773,230		$	891,005
Gross margin		110,964		128,232		122,487			130,836
Impairment of goodwill and long-lived assets (1)		4,641		30,734		-			22,871
Net earnings		56,353		28,340		44,211			31,248
Net earnings attributable to controlling interest		54,557		22,977		40,603			33,163
Earnings per share - basic	$	0.78	$	0.33	$	0.59		$	0.49
Earnings per share - diluted		0.76		0.32		0.57			0.47

(1) For additional information regarding the Company’s impairment charges, refer to “Note C – Goodwill and Other Long-Lived Assets.”

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Summary of Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014
Goodwill [Line Items]
Goodwill, beginning balance	$ 372,687	$ 335,452
Accumulated impairment losses, beginning balance	(121,594)	(121,594)
Goodwill net, beginning balance	251,093	213,858
Acquisitions and purchase accounting adjustments	48,008	36,033
Divestitures	(1,891)
Translation adjustments	(13,278)	1,202
Impairment losses	(44,933)
Goodwill, Period Increase (Decrease)	(12,094)
Goodwill, ending balance	405,526	372,687
Accumulated impairment losses, ending balance	(166,527)	(121,594)
Goodwill net, ending balance	238,999	251,093
Steel Processing
Goodwill [Line Items]
Acquisitions and purchase accounting adjustments	6,587
Goodwill, Period Increase (Decrease)	6,587
Goodwill, ending balance	6,587
Goodwill net, ending balance	6,587
Pressure Cylinders
Goodwill [Line Items]
Goodwill, beginning balance	200,509	163,274
Goodwill net, beginning balance	200,509	163,274
Acquisitions and purchase accounting adjustments	41,421	36,033
Divestitures	(1,891)
Translation adjustments	(13,278)	1,202
Goodwill, Period Increase (Decrease)	26,252
Goodwill, ending balance	226,761	200,509
Goodwill net, ending balance	226,761	200,509
Engineered Cabs
Goodwill [Line Items]
Goodwill, beginning balance	44,933	44,933
Goodwill net, beginning balance	44,933	44,933
Impairment losses	(44,933)
Goodwill, Period Increase (Decrease)	(44,933)
Goodwill, ending balance	44,933	44,933
Accumulated impairment losses, ending balance	(44,933)
Goodwill net, ending balance		44,933
Other
Goodwill [Line Items]
Goodwill, beginning balance	127,245	127,245
Accumulated impairment losses, beginning balance	(121,594)	(121,594)
Goodwill net, beginning balance	5,651	5,651
Goodwill, ending balance	127,245	127,245
Accumulated impairment losses, ending balance	(121,594)	(121,594)
Goodwill net, ending balance	$ 5,651	$ 5,651

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Performance Shares Granted (Detail) - Performance Shares - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	61	59	108
Weighted average grant date fair value, per share	$ 42.71	$ 33.33	$ 22.08
Pre-tax stock-based compensation	$ 2,611	$ 1,958	$ 2,383

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Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed (Detail) - Entity [Domain] - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Goodwill	$ 238,999	$ 251,093	$ 213,858
Rome Strip Steel
Consideration Transferred:
Cash consideration	55,312
Purchase price	54,495
Plus: estimated working capital deficit	817
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash	10
Accounts receivable	6,333
Inventories	17,063
Prepaid expenses	41
Intangible assets	5,500
Property, plant and equipment	22,775
Total identifiable assets	51,722
Accounts payable	(3,091)
Other accrued items	(410)
Other liabilities	(313)
Net assets	47,908
Goodwill	6,587
DHybrid Systems Llc
Consideration Transferred:
Cash consideration	11,939
Fair value of contingent consideration	3,979
Purchase price	15,918
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash	1,132
Accounts receivable	1,482
Inventories	2,732
Prepaid expenses	38
Intangible assets	3,788
Property, plant and equipment	406
Total identifiable assets	9,578
Accounts payable	(1,867)
Accrued liabilities	(533)
Long-term debt	(5,000)
Net assets	2,178
Goodwill	17,822
Cash consideration	20,000
Noncontrolling interest	(4,082)
Total consideration	15,918
MEF
Consideration Transferred:
Cash consideration	38,441
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Accounts receivable	3,329
Inventories	3,550
Intangible assets	13,600
Property, plant and equipment	166
Total identifiable assets	20,645
Accounts payable	(555)
Other accrued items	(92)
Deferred revenue	(4,808)
Net assets	15,190
Goodwill	23,251
Cash consideration	38,441
JRE
Consideration Transferred:
Cash consideration	1,571
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash	253
Accounts receivable	509
Inventories	2,793
Prepaid expenses	40
Property, plant and equipment	250
Total identifiable assets	3,845
Accounts payable	(514)
Other accrued items	(2,160)
Net assets	1,171
Goodwill	400
Cash consideration	1,571
Steffes
Consideration Transferred:
Cash consideration	27,962
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Inventories	2,316
Intangible assets	10,290	10,290
Property, plant and equipment	2,638
Total identifiable assets	15,244
Goodwill	12,718
Cash consideration	27,962
Worthington Aritas
Consideration Transferred:
Fair value of contingent consideration	404
Purchase price	35,325
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash		1,037
Accounts receivable		3,242
Inventories		10,678
Prepaid expenses		1,317
Intangible assets	16,800	16,800
Other noncurrent assets		1,099
Property, plant and equipment		5,467
Total identifiable assets		39,640
Accounts payable		(5,587)
Short-term borrowings		(251)
Accrued liabilities		(6,902)
Deferred taxes		(2,787)
Net assets		24,113
Goodwill		22,987
Cash consideration		47,100
Noncontrolling interest		(11,775)
Total consideration		35,325
Worthington Aritas | Preliminary Valuation
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash		1,037
Accounts receivable		3,326
Inventories		10,678
Prepaid expenses		1,317
Intangible assets		16,800
Other noncurrent assets		1,099
Property, plant and equipment		5,467
Total identifiable assets		39,724
Accounts payable		(5,587)
Short-term borrowings		(251)
Accrued liabilities		(2,756)
Other liabilities		(4,954)
Deferred taxes		(2,787)
Net assets		23,389
Goodwill		23,586
Cash consideration		46,975
Noncontrolling interest		(11,744)
Total consideration		35,231
Worthington Aritas | Measurement Period Adjustments
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Accounts receivable		(84)
Total identifiable assets		(84)
Accrued liabilities		(4,146)
Other liabilities		4,954
Net assets		724
Goodwill		(599)
Cash consideration		125
Noncontrolling interest		(31)
Total consideration		$ 94
TWB
Consideration Transferred:
Cash consideration	17,869
Fair value of previously held equity interest in TWB	72,369
Total consideration	90,238
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash	70,826
Accounts receivable	52,012
Inventories	20,403
Prepaid expenses	4,027
Intangible assets	22,028
Other noncurrent assets	103
Property, plant and equipment	52,390
Total identifiable assets	221,789
Accounts payable	(50,642)
Accrued liabilities	(6,431)
Deferred taxes	(2,109)
Cash consideration	162,607
Noncontrolling interest	(72,369)
Total consideration	$ 90,238

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Fair Value Measurements (Tables)

12 Months Ended

May. 31, 2015

Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

At May 31, 2015, our financial assets and liabilities measured at fair value on a recurring basis were as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Derivative contracts (1)	$	-	$	171	$	-	$	171
Total assets	$	-	$	171	$	-	$	171
Liabilities
Derivative contracts (1)	$	-	$	22,131	$	-	$	22,131
Contingent consideration obligations (2)		-		-		3,979		3,979
Total liabilities	$	-	$	22,131	$	3,979	$	26,110

At May 31, 2014, our financial assets and liabilities measured at fair value on a recurring basis were as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Derivative contracts (1)	$	-	$	1,284	$	-	$	1,284
Total assets	$	-	$	1,284	$	-	$	1,284
Liabilities
Derivative contracts (1)	$	-	$	4,475	$	-	$	4,475
Contingent consideration obligations (2)		-		-		404		404
Total liabilities	$	-	$	4,475	$	404	$	4,879

(1) The fair value of our derivative contracts is based on the present value of the expected future cash flows considering the risks involved, including non-performance risk, and using discount rates appropriate for the respective maturities. Market observable, Level 2 inputs are used to determine the present value of the expected future cash flows. Refer to “Note P – Derivative Instruments and Hedging Activities” for additional information regarding our use of derivative instruments.

(2) The fair value of the contingent consideration obligations is determined using a probability weighted cash flow approach based on management’s projections of future cash flows of the acquired businesses. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements.

Assets Measured at Fair Value on Non-recurring Basis

At May 31, 2015, our assets measured at fair value on a non-recurring basis were categorized as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Long-lived assets held and used (1)	$	-	$	-	$	12,403	$	12,403
Total assets	$	-	$	-	$	12,403	$	12,403

(1) During the fourth quarter of fiscal 2015, the Company determined that indicators of impairment were present with regard to intangible assets related to our CNG fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value of $600,000, resulting in an impairment charge of $2,344,000. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate.

During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs operating segment was necessary. Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs operating segment for recoverability. Recoverability was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence, South Carolina facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values of $2,000,000 and $9,803,000. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements. The key assumptions that drove the fair value calculations were projected cash flows and the discount rate.

At May 31, 2014, our assets measured at fair value on a non-recurring basis were categorized as follows:

(in thousands)	Quoted Prices  in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Long-lived assets held for sale (1)	$	-	$	25,040	$	-	$	25,040
Long-lived assets held and used (2)		-		7,034		-		7,034
Total assets	$	-	$	32,074	$	-	$	32,074

(1) During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $5,925,000, was lower than its net book value, an impairment charge of $18,959,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest, or $7,583,000, was recorded within net earnings attributable to noncontrolling interests in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, management committed to plans to sell the Company’s stainless steel business, Precision Specialty Metals, Inc. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $19,115,000, was lower than its net book value, an impairment charge of $7,141,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

(2) During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. Market observable, Level 2 inputs are used to determine fair value.

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Investments in Unconsolidated Affiliates (Tables)

12 Months Ended

May. 31, 2015

Income Statement

Financial Information

The following table presents financial results of our three largest affiliated companies for fiscal 2015, fiscal 2014 and fiscal 2013. All other affiliated companies are combined and presented in the Other category.

(in thousands)	2015		2014		2013
Net sales
WAVE	$	382,451	$	382,821	$	370,702
ClarkDietrich		576,171		549,267		547,971
TWB		-		54,003		344,065
Other		551,558		506,711		490,996
Total net sales	$	1,510,180	$	1,492,802	$	1,753,734
Gross margin
WAVE	$	181,102	$	177,935	$	167,924
ClarkDietrich		65,530		73,803		75,580
TWB		-		6,109		41,116
Other		55,374		54,773		48,229
Total gross margin	$	302,006	$	312,620	$	332,849
Operating income
WAVE	$	147,603	$	144,167	$	137,202
ClarkDietrich		10,436		27,918		35,024
TWB		-		4,273		28,241
Other		35,492		37,574		30,457
Total operating income	$	193,531	$	213,932	$	230,924
Depreciation and amortization
WAVE	$	4,150	$	4,916	$	3,919
ClarkDietrich		16,638		16,253		18,173
TWB		-		880		5,123
Other		14,874		14,909		13,497
Total depreciation and amortization	$	35,662	$	36,958	$	40,712
Interest expense
WAVE	$	6,412	$	6,464	$	6,280
ClarkDietrich		138		103		3
TWB		-		-		-
Other		2,145		2,655		2,611
Total interest expense	$	8,695	$	9,222	$	8,894
Income tax expense
WAVE	$	2,539	$	3,606	$	2,451
ClarkDietrich		-		-		-
TWB		-		478		1,218
Other		7,949		5,770		3,187
Total income tax expense	$	10,488	$	9,854	$	6,856
Net earnings
WAVE	$	138,670	$	134,019	$	128,614
ClarkDietrich		11,799		27,837		35,005
TWB		-		4,023		27,931
Other		27,633		30,252		24,452
Total net earnings	$	178,102	$	196,131	$	216,002

Balance Sheet

Financial Information

The following table presents combined information of the financial position for the affiliated companies accounted for using the equity method as of May 31, 2015 and 2014:

(in thousands)	2015		2014
Cash	$	101,011	$	52,997
Receivable from partner (1)		11,092		12,717
Other current assets		491,507		454,417
Noncurrent assets		318,939		294,001
Total assets	$	922,549	$	814,132
Current liabilities	$	184,028	$	128,595
Short-term borrowings		-		40,992
Current maturities of long-term debt		4,489		4,510
Long-term debt		272,861		268,350
Other noncurrent liabilities		20,471		20,217
Equity		440,700		351,468
Total liabilities and equity	$	922,549	$	814,132

(1) Represents cash owed from a third-party joint venture partner as a result of centralized cash management.

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Components of Net Periodic Pension Cost for Defined Benefit Plan and Defined Contribution Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Employee Benefit Plan [Line Items]
Interest cost	$ 1,541	$ 1,403	$ 1,361
Actual return on plan assets	1,846	2,524	4,355
Net amortization and deferral	(3,641)	(4,175)	(5,522)
Net periodic pension cost (benefit) on defined benefit plan	(254)	(248)	194
Defined contribution plans	13,270	12,586	9,955
Total retirement plan cost	$ 13,016	$ 12,338	$ 10,149

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Subsequent Events - Additional Information (Detail) - Subsequent Event - Non Core Steel Processing Assets	Jun. 26, 2015 USD ($)
Minimum
Subsequent Event [Line Items]
Restructuring charges	$ 1,000,000
Maximum
Subsequent Event [Line Items]
Restructuring charges	$ 1,500,000

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Assumptions To Value Stock Options (Detail)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	1.88%	2.28%	2.95%
Expected volatility	50.92%	52.23%	52.88%
Risk-free interest rate	1.88%	1.69%	0.91%
Expected life (years)	6 years	6 years	6 years
Market-Based Restricted Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	1.60%	2.28%
Expected volatility	44.00%	53.40%
Risk-free interest rate	1.70%	1.41%

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Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Income Taxes [Line Items]
Tax benefits related to stock-based compensation credited to additional paid-in capital	$ 6,179,000	$ 7,115,000	$ 4,054,000
Tax benefits (expenses) related to defined benefit pension liability credited to (deducted from) other comprehensive income (loss) ["OCI"]	1,914,000	511,000	(1,415,000)
Tax benefits (expenses) related to cash flow hedges credited to (deducted from) OCI	$ 6,952,000	$ (1,039,000)	$ (763,000)
Effective tax rates upon inclusion of net earnings attributable to noncontrollng interests	22.80%	26.40%	32.00%
Minimum likelihood of tax benefits being recognized upon ultimate settlement	50.00%
Total unrecognized tax benefits	$ 3,530,000	$ 4,110,000	$ 3,705,000
Unrecognized tax benefits if recognized would affect tax rate attributable to controlling interest	2,401,000
Interest and penalties related to unrecognized tax benefits	947,000	1,049,000	$ 1,128,000
Liability for unrecognized tax benefit expected to be settled in the next 12 months	922,000
Undistributed earnings of consolidated foreign subsidiaries	205,000,000
Deferred tax liability would have been required if earnings were not permanently reinvested	13,000,000
Valuation allowance for deferred tax assets	13,036,000	$ 21,701,000
State and Local Jurisdiction
Income Taxes [Line Items]
Net operating loss carry forwards	$ 12,218,000
Net operating loss carry forwards, expiration dates	From fiscal 2016 to the fiscal year ending May 31, 2035
Valuation allowance for deferred tax assets	$ 11,607,000
Foreign
Income Taxes [Line Items]
Net operating loss carry forwards	$ 2,108,000
Net operating loss carry forwards, expiration dates	From fiscal 2018 to the fiscal year ending May 31, 2035
Tax credit carry forwards	$ 3,653,000
Tax credit carry forwards, expiration dates	That expires on May 31, 2025
Valuation allowance for deferred tax assets	$ 1,429,000

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Estimated Amortization Expense (Detail) $ in Thousands	May. 31, 2015 USD ($)
Expected Amortization Expense [Line Items]
2016	$ 17,163
2017	16,275
2018	15,850
2019	12,731
2020	$ 10,345

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Schedule of Gain (Loss) Recognized in Earnings for Economic (Non-Designated) Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014
Derivative [Line Items]
Gain (Loss) Recognized in Earnings	$ (15,432)	$ (1,277)
Commodity Contracts | Cost Of Goods Sold
Derivative [Line Items]
Gain (Loss) Recognized in Earnings	$ (15,432)	(1,304)
Foreign Exchange Contracts | Miscellaneous Income (Expense)
Derivative [Line Items]
Gain (Loss) Recognized in Earnings		$ 27

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Restricted Common Shares Granted (Detail) - Service-Based Restricted Common Shares - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	240	380	121
Weighted average grant date fair value, per share	$ 40.05	$ 33.14	$ 20.77
Pre-tax stock-based compensation	$ 8,660	$ 11,307	$ 2,299

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Estimated Future Benefits Expected to be Paid (Detail) $ in Thousands	May. 31, 2015 USD ($)
Defined Benefit Plan Disclosure [Line Items]
2016	$ 799
2017	872
2018	958
2019	1,080
2020	1,183
2021-2025	$ 7,896

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Reconciliation of Changes in Projected Benefit Obligation and Fair Value of Plan Assets and Funded Status for Gerstenslager Plan (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Change in benefit obligation
Benefit obligation, beginning of year	$ 35,539	$ 31,930
Interest cost	1,541	1,403	$ 1,361
Actuarial loss	3,924	3,002
Benefits paid	(777)	(796)
Benefit obligation, end of year	40,227	35,539	31,930
Change in plan assets
Fair value, end of year	28,160	26,470	24,442
Fair value, beginning of year	26,470	24,442
Actual return on plan assets	1,846	2,524	$ 4,355
Company contributions	620	300
Benefits paid	(777)	(796)
Funded status	(12,068)	(9,069)
Amounts recognized in the consolidated balance sheets consist of:
Other liabilities	(12,067)	(9,069)
Amounts recognized in accumulated other comprehensive loss consist of:
Net loss	17,900	14,028
Defined Benefit Plan
Change in plan assets
Fair value, end of year	28,159	26,470
Fair value, beginning of year	26,470
Other Postretirement Benefit Plan
Amounts recognized in the consolidated balance sheets consist of:
Accumulated other comprehensive loss	17,900	14,028
Amounts recognized in accumulated other comprehensive loss consist of:
Total	$ 17,900	$ 14,028

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Earnings before Income Taxes (Detail) - USD ($) $ in Thousands		12 Months Ended
		May. 31, 2015	May. 31, 2014	May. 31, 2013
Schedule of Income Before Income Tax [Line Items]
United States based operations		$ 104,732	$ 210,783	$ 190,942
Non - United States based operations		8,296	6,718	10,358
Earnings before income taxes		113,028	217,501	201,300
Less: Net earnings attributable to noncontrolling interests	[1]	10,471	8,852	393
Earnings before income taxes attributable to controlling interest		$ 102,557	$ 208,649	$ 200,907

[1] Net earnings attributable to noncontrolling interests are not taxable to Worthington.

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Summary of Restricted Common Share Activity (Detail) - Restricted Common Shares - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Restricted Common Shares
Outstanding, beginning of year	573	399	513
Granted	240	380	121
Vested	(142)	(185)	(233)
Forfeited	(36)	(21)	(2)
Outstanding, end of year	635	573	399
Weighted Average Grant Date Fair Value
Outstanding, beginning of year	$ 28.36	$ 18.74	$ 17.08
Granted	40.05	33.14	20.76
Vested	23.32	17.17	16.10
Forfeited	32.62	30.70	22.09
Outstanding, end of year	$ 33.65	$ 28.36	$ 18.74
Weighted Average Remaining Contractual Life (in years)
Weighted average remaining contractual life of outstanding restricted common shares (in years)	1 year 4 months 28 days	1 year 7 months 10 days	1 year 3 months 22 days
Aggregate intrinsic value
Aggregate intrinsic value of outstanding restricted common shares	$ 17,269	$ 23,112	$ 13,701
Aggregate intrinsic value of restricted common shares vested during the year	$ 5,400	$ 7,499	$ 5,559

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Stock-Based Compensation - Additional Information (Detail) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized for issuance	5,039,014
Stock based compensation expense, pre tax	$ 17,916,000	$ 22,017,000	$ 13,270,000
Stock based compensation expense, after tax	11,500,000	$ 13,778,000	$ 8,339,000
Unrecognized compensation cost	$ 16,367,000
Unrecognized compensation cost related to non-vested awards, expense period	3 years
Purchase price percentage of fair market value on the date of grant for stock options	100.00%
Stock options expiration period	10 years
Total intrinsic value of stock options exercised	$ 13,218,000
Cash received from the exercise of stock options	2,015,000
Tax benefit realized from the exercise of these stock options	$ 7,178,000
Service-based restricted common shares granted to employees cliff vesting period	3 years
Before June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage	20.00%
After June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage	33.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price percentage of fair market value on the date of grant for stock options	100.00%
Market-Based Restricted Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common shares, granted	50,000	360,000
Common share awards vesting, minimum price per share	$ 60.00	$ 50.00
Common share awards vesting, minimum consecutive days at stated price	30 days	30 days
Restricted common shares, fair value per share	$ 32.06	$ 24.19
Unrecognized compensation cost	$ 1,603,000	$ 8,708,000
Service-based vesting condition period, years	5 years

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Fair Value Measurements

12 Months Ended

May. 31, 2015

Fair Value Measurements

Note Q – Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is an exit price concept that assumes an orderly transaction between willing market participants and is required to be based on assumptions that market participants would use in pricing an asset or a liability. Current accounting guidance establishes a three-tier fair value hierarchy as a basis for considering such assumptions and for classifying the inputs used in the valuation methodologies. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair values are as follows:

Level 1	–	Observable prices in active markets for identical assets and liabilities.
Level 2	–	Observable inputs other than quoted prices in active markets for identical assets and liabilities.
Level 3	–	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities.

Recurring Fair Value Measurements

At May 31, 2015, our financial assets and liabilities measured at fair value on a recurring basis were as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Derivative contracts (1)	$	-	$	171	$	-	$	171
Total assets	$	-	$	171	$	-	$	171
Liabilities
Derivative contracts (1)	$	-	$	22,131	$	-	$	22,131
Contingent consideration obligations (2)		-		-		3,979		3,979
Total liabilities	$	-	$	22,131	$	3,979	$	26,110

At May 31, 2014, our financial assets and liabilities measured at fair value on a recurring basis were as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Derivative contracts (1)	$	-	$	1,284	$	-	$	1,284
Total assets	$	-	$	1,284	$	-	$	1,284
Liabilities
Derivative contracts (1)	$	-	$	4,475	$	-	$	4,475
Contingent consideration obligations (2)		-		-		404		404
Total liabilities	$	-	$	4,475	$	404	$	4,879

(1) The fair value of our derivative contracts is based on the present value of the expected future cash flows considering the risks involved, including non-performance risk, and using discount rates appropriate for the respective maturities. Market observable, Level 2 inputs are used to determine the present value of the expected future cash flows. Refer to “Note P – Derivative Instruments and Hedging Activities” for additional information regarding our use of derivative instruments.

(2) The fair value of the contingent consideration obligations is determined using a probability weighted cash flow approach based on management’s projections of future cash flows of the acquired businesses. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements.

Non-Recurring Fair Value Measurements

At May 31, 2015, our assets measured at fair value on a non-recurring basis were categorized as follows:

(in thousands)	Quoted  Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Long-lived assets held and used (1)	$	-	$	-	$	12,403	$	12,403
Total assets	$	-	$	-	$	12,403	$	12,403

(1) During the fourth quarter of fiscal 2015, the Company determined that indicators of impairment were present with regard to intangible assets related to our CNG fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value of $600,000, resulting in an impairment charge of $2,344,000. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate.

During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs operating segment was necessary. Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs operating segment for recoverability. Recoverability was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence, South Carolina facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values of $2,000,000 and $9,803,000. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements. The key assumptions that drove the fair value calculations were projected cash flows and the discount rate.

At May 31, 2014, our assets measured at fair value on a non-recurring basis were categorized as follows:

(in thousands)	Quoted Prices  in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Totals
Assets
Long-lived assets held for sale (1)	$	-	$	25,040	$	-	$	25,040
Long-lived assets held and used (2)		-		7,034		-		7,034
Total assets	$	-	$	32,074	$	-	$	32,074

(1) During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $5,925,000, was lower than its net book value, an impairment charge of $18,959,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest, or $7,583,000, was recorded within net earnings attributable to noncontrolling interests in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, management committed to plans to sell the Company’s stainless steel business, Precision Specialty Metals, Inc. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $19,115,000, was lower than its net book value, an impairment charge of $7,141,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

(2) During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. Market observable, Level 2 inputs are used to determine fair value.

The non-derivative financial instruments included in the carrying amounts of cash and cash equivalents, receivables, income taxes receivable, other assets, deferred income taxes, accounts payable, short-term borrowings, accrued compensation, contributions to employee benefit plans and related taxes, other accrued expenses, income taxes payable and other liabilities approximate fair value due to their short-term nature. The fair value of long-term debt, including current maturities, based upon models utilizing market observable (Level 2) inputs and credit risk, was $610,028,000 and $674,488,000 at May 31, 2015 and 2014, respectively. The carrying amount of long-term debt, including current maturities, was $580,193,000 and $655,963,000 at May 31, 2015 and 2014, respectively.

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Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Cash Flow Supplemental Disclosures [Line Items]
Interest paid, net of amount capitalized	$ 36,190	$ 24,199	$ 22,614
Income taxes paid, net of refunds	$ 67,825	$ 81,997	$ 64,260

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Earnings Per Share (Tables)

12 Months Ended

May. 31, 2015

Computation of Basic and Diluted Earnings per Share

The following table sets forth the computation of basic and diluted earnings per share for the years ended May 31:

(in thousands, except per share amounts)	2015		2014		2013
Numerator (basic & diluted):
Net earnings attributable to controlling interest – income available to common shareholders	$	76,785	$	151,300	$	136,442
Denominator:
Denominator for basic earnings per share attributable to controlling interest – weighted average common shares		66,309		68,944		69,301
Effect of dilutive securities		2,174		2,720		2,013
Denominator for diluted earnings per share attributable to controlling interest – adjusted weighted average common shares		68,483		71,664		71,314
Basic earnings per share attributable to controlling interest	$	1.16	$	2.19	$	1.97
Diluted earnings per share attributable to controlling interest		1.12		2.11		1.91

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Summary of Non-Vested Stock Option Awards (Detail) - $ / shares shares in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Number of Stock Options
Non-vested, beginning of year	1,756
Granted	97	130	1,034
Vested	(1,038)
Forfeited	(47)
Non-vested, end of year	768	1,756
Weighted Average Grant Date Fair Value Per Share
Non-vested, beginning of year	$ 6.38
Granted	15.98
Vested	6.32
Forfeited	6.33
Non-vested, end of year	$ 7.66	$ 6.38

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Earnings Per Share - Additional Information (Detail) - shares	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from computation of diluted earnings per share	97,798	7,945	257,667

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Debt and Receivables Securitization (Tables)

12 Months Ended

May. 31, 2015

Summary of Long-term Debt and Short-term Borrowings Outstanding

The following table summarizes our long-term debt and short-term borrowings outstanding at May 31, 2015 and 2014:

(in thousands)	2015		2014
Short-term borrowings	$	90,550	$	10,362
4.55% senior notes due April 15, 2026		249,524		249,472
4.60% senior notes due August 10, 2024		150,000		150,000
6.50% senior notes due April 15, 2020		149,920		149,912
Term loans		30,429		4,235
Floating rate senior notes due December 17, 2014		-		100,000
Industrial revenue bonds due April 2019		-		2,024
Other		320		320
Total debt		670,743		666,325
Less: current maturities and short-term borrowings		91,391		111,535
Total long-term debt	$	579,352	$	554,790

Maturities on Long-term Debt and Short-term Borrowings

Maturities on long-term debt and short-term borrowings in the next five fiscal years, and the remaining years thereafter, are as follows:

(in thousands)
2016		91,391
2017		862
2018		6,286
2019		6,232
2020		166,207
Thereafter		400,000
Total	$	670,978

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Schedule of Combined Financial Information for Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands		May. 31, 2015	May. 31, 2014
Investments in and Advances to Affiliates [Line Items]
Cash		$ 101,011	$ 52,997
Receivable from partner	[1]	11,092	12,717
Other current assets		491,507	454,417
Noncurrent assets		318,939	294,001
Total assets		922,549	814,132
Current liabilities		184,028	128,595
Short-term borrowings			40,992
Current maturities of long-term debt		4,489	4,510
Long-term debt		272,861	268,350
Other noncurrent liabilities		20,471	20,217
Equity		440,700	351,468
Total liabilities and equity		$ 922,549	$ 814,132

[1] Represents cash owed from a third-party joint venture partner as a result of centralized cash management.

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Summary of Tax Effects of Each Component of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Before-Tax
Foreign currency translation, before tax	$ (34,229)	$ 7,618	$ 5,393
Pension liability adjustment, before tax	(5,652)	(1,555)	3,688
Cash flow hedges, before tax	(18,605)	3,548	1,461
Other comprehensive income (loss), before tax	(58,486)	9,611	10,542
Tax
Foreign currency translation, tax	0	0	0
Pension liability adjustment, tax	1,914	511	(1,415)
Cash flow hedges, tax	6,952	(1,039)	(763)
Other comprehensive income (loss), tax	8,866	(528)	(2,178)
Net-of-tax
Foreign currency translation, net-of-tax	(34,229)	7,618	5,393
Pension liability adjustment, net-of-tax	(3,738)	(1,044)	2,273
Cash flow hedges, net-of-tax	(11,653)	2,509	698
Other comprehensive income (loss), net-of-tax	$ (49,620)	$ 9,083	$ 8,364

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Assets Measured at Fair Value on Non-recurring Basis (Detail) - Entity [Domain] - USD ($) $ in Thousands		May. 31, 2015		May. 31, 2014
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis		$ 12,403		$ 32,074
Long-lived Assets Held and Used
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis		12,403	[1]	7,034	[2]
Long-lived Assets Held For Sale
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis	[3]			25,040
Significant Other Observable Inputs (Level 2)
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis				32,074
Significant Other Observable Inputs (Level 2) | Long-lived Assets Held and Used
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis	[2]			7,034
Significant Other Observable Inputs (Level 2) | Long-lived Assets Held For Sale
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis	[3]			$ 25,040
Significant Unobservable Inputs (Level 3)
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis		12,403
Significant Unobservable Inputs (Level 3) | Long-lived Assets Held and Used
Fair Value [Line Items]
Asset measured at fair value on nonrecurring basis	[1]	$ 12,403

[1] During the fourth quarter of fiscal 2015, the Company determined that indicators of impairment were present with regard to intangible assets related to our CNG fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value of $600,000, resulting in an impairment charge of $2,344,000. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate. During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs operating segment was necessary. Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs operating segment for recoverability. Recoverability was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence, South Carolina facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values of $2,000,000 and $9,803,000. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements. The key assumptions that drove the fair value calculations were projected cash flows and the discount rate.

[2] During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company's aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management's long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. Market observable, Level 2 inputs are used to determine fair value.

[3] During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company's 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $5,925,000, was lower than its net book value, an impairment charge of $18,959,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest, or $7,583,000, was recorded within net earnings attributable to noncontrolling interests in our fiscal 2014 consolidated statement of earnings. During the fourth quarter of fiscal 2014, management committed to plans to sell the Company's stainless steel business, Precision Specialty Metals, Inc. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $19,115,000, was lower than its net book value, an impairment charge of $7,141,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

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Total Proceeds Received related to Insurance Claims since Date of Loss (Detail) - May. 31, 2015 - USD ($)	Total	Total
Unusual or Infrequent Item [Line Items]
Total insurance proceeds	$ 1,248	$ 13,414,000
Property and equipment
Unusual or Infrequent Item [Line Items]
Total insurance proceeds		6,892,000
Business interruption
Unusual or Infrequent Item [Line Items]
Total insurance proceeds		5,521,000
Other expenses
Unusual or Infrequent Item [Line Items]
Total insurance proceeds		$ 1,001,000

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Operating Leases (Tables)

12 Months Ended

May. 31, 2015

Future Minimum Lease Payments for Noncancelable Operating Leases

Future minimum lease payments for non-cancelable operating leases having an initial or remaining term in excess of one year at May 31, 2015, were as follows:

(in thousands)
2016	$	9,425
2017		8,276
2018		6,931
2019		5,796
2020		4,365
Thereafter		3,684
Total	$	38,477

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Summary of Significant Accounting Policies

12 Months Ended

May. 31, 2015

Summary of Significant Accounting Policies

Note A – Summary of Significant Accounting Policies

Consolidation:    The consolidated financial statements include the accounts of Worthington Industries, Inc. and consolidated subsidiaries (collectively, “we,” “our,” “Worthington,” or the “Company”). Investments in unconsolidated affiliates are accounted for using the equity method. Significant intercompany accounts and transactions are eliminated.

dHybrid Systems, LLC (“dHybrid”), Spartan Steel Coating, LLC (“Spartan”), TWB Company, L.L.C. (“TWB”), Worthington Aritaş Basinçli Kaplar Sanayi (“Worthington Aritas”), Worthington Energy Innovations, LLC (“WEI”), and Worthington Nitin Cylinders Limited (“Worthington Nitin Cylinders”) in which we own controlling interests of 79.59%, 52%, 55%, 75%, 75%, and 60%, respectively, are consolidated with the equity owned by the other joint venture members shown as noncontrolling interests in our consolidated balance sheets, and the other joint venture members’ portions of net earnings and other comprehensive income shown as net earnings or comprehensive income attributable to noncontrolling interests in our consolidated statements of earnings and consolidated statements of comprehensive income, respectively.

Use of Estimates:    The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents:    We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.

Inventories:    Inventories are valued at the lower of cost or market. Cost is determined using the first-in, first-out method for all inventories. Due to the decline in steel prices, the replacement cost of our inventory was lower than what was reflected in our records at May 31, 2015. Accordingly, we recorded a lower of cost or market adjustment of $1,716,000 at May 31, 2015 to reflect this lower value. The entire amount related to our Steel Processing operating segment and was recorded in cost of goods sold. We believe our inventories were valued appropriately as of May 31, 2015 and May 31, 2014.

Derivative Financial Instruments:    We utilize derivative financial instruments to manage exposure to certain risks related to our ongoing operations. The primary risks managed through the use of derivative instruments include interest rate risk, currency exchange risk and commodity price risk. All derivative instruments are accounted for using mark-to-market accounting. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it. Gains and losses on fair value hedges are recognized in current period earnings in the same line as the underlying hedged item. The effective portion of gains and losses on cash flow hedges is deferred as a component of accumulated other comprehensive income or loss (“AOCI”) and recognized in earnings at the time the hedged item affects earnings, in the same financial statement caption as the underlying hedged item. Ineffectiveness of the hedges during the fiscal year ended May 31, 2015 (“fiscal 2015”), the fiscal year ended May 31, 2014 (“fiscal 2014”) and the fiscal year ended May 31, 2013 (“fiscal 2013”) was immaterial. Classification in the consolidated statements of earnings of gains and losses related to derivative instruments that do not qualify for hedge accounting is determined based on the underlying intent of the instruments. Cash flows related to derivative instruments are generally classified as operating activities in our consolidated statements of cash flows.

In order for hedging relationships to qualify for hedge accounting under current accounting guidance, we formally document each hedging relationship and its risk management objective. This documentation includes the hedge strategy, the hedging instrument, the hedged item, the nature of the risk being hedged, how hedge effectiveness will be assessed prospectively and retrospectively as well as a description of the method used to measure hedge ineffectiveness.

Derivative instruments are executed only with highly-rated financial institutions. No credit loss is anticipated on existing instruments, and no such material losses have been experienced to date. We monitor our positions, as well as the credit ratings of counterparties to those positions.

We discontinue hedge accounting when it is determined that the derivative instrument is no longer effective in offsetting the hedged risk, expires or is sold, is terminated or is no longer designated as a hedging instrument because it is unlikely that a forecasted transaction will occur or we determine that designation of the hedging instrument is no longer appropriate. In all situations in which hedge accounting is discontinued and the derivative instrument is retained, we continue to carry the derivative instrument at its fair value on the consolidated balance sheet and recognize any subsequent changes in its fair value in net earnings immediately. When it is probable that a forecasted transaction will not occur, we discontinue hedge accounting and immediately recognize the gains and losses that were accumulated in AOCI.

Refer to “Note P – Derivative Instruments and Hedging Activities” for additional information regarding the consolidated balance sheet location and the risk classification of our derivative instruments.

Risks and Uncertainties:    As of May 31, 2015, we, together with our unconsolidated affiliates, operated 83 manufacturing facilities in 26 states and 11 countries. A total of 33 of these facilities are operated by wholly-owned and consolidated subsidiaries of the Company. The remaining facilities are operated by our consolidated and unconsolidated joint ventures. As of May 31, 2015, we held equity positions in 13 active joint ventures, of which six are consolidated. Our largest market is the automotive market, which comprised 38% and 36% of consolidated net sales in fiscal 2015 and fiscal 2014, respectively. Our foreign operations represented 6% and 7% of consolidated net sales, (2)% of pre-tax earnings attributable to controlling interest, and 14% and 15% of consolidated net assets as of and for the years ended May 31, 2015 and 2014, respectively. As of May 31, 2015, approximately 6% of our consolidated labor force was represented by collective bargaining agreements. The concentration of credit risks from financial instruments related to the markets we serve is not expected to have a material adverse effect on our consolidated financial position, cash flows or future results of operations.

In fiscal 2015, our largest customer accounted for approximately 7% of our consolidated net sales, and our ten largest customers accounted for approximately 29% of our consolidated net sales. A significant loss of, or decrease in, business from any of these customers could have an adverse effect on our sales and financial results if we cannot obtain replacement business. Also, due to consolidation within the industries we serve, including the construction, automotive and retail industries, our sales may be increasingly sensitive to deterioration in the financial condition of, or other adverse developments with respect to, one or more of our largest customers.

Our principal raw material is flat-rolled steel, which we purchase from multiple primary steel producers. The steel industry as a whole has been cyclical, and at times availability and pricing can be volatile due to a number of factors beyond our control. This volatility can significantly affect our steel costs. In an environment of increasing prices for steel and other raw materials, in general, competitive conditions may impact how much of the price increases we can pass on to our customers. To the extent we are unable to pass on future price increases in our raw materials to our customers, our financial results could be adversely affected. Also, if steel prices decrease, in general, competitive conditions may impact how quickly we must reduce our prices to our customers and we could be forced to use higher-priced raw materials to complete orders for which the selling prices have decreased. Declining steel prices could also require us to write-down the value of our inventories to reflect current market pricing. Further, the number of suppliers has decreased in recent years due to industry consolidation and the financial difficulties of certain suppliers, and consolidation may continue. Accordingly, if delivery from a major steel supplier is disrupted, it may be more difficult to obtain an alternative supply than in the past.

Receivables:    We review our receivables on an ongoing basis to ensure that they are properly valued and collectible. This is accomplished through two contra-receivable accounts: returns and allowances and allowance for doubtful accounts. Returns and allowances, including limited warranties on certain products, are used to record estimates of returns or other allowances resulting from quality, delivery, discounts or other issues affecting the value of receivables. This account is estimated based on historical trends and current market conditions, with the offset to net sales. The returns and allowances account increased approximately $626,000 during fiscal 2015 to $6,393,000. The portion of the liability related to product warranties was immaterial at May 31, 2015 and May 31, 2014.

The allowance for doubtful accounts is used to record the estimated risk of loss related to the customers’ inability to pay. This allowance is maintained at a level that we consider appropriate based on factors that affect collectability, such as the financial health of our customers, historical trends of charge-offs and recoveries and current economic and market conditions. As we monitor our receivables, we identify customers that may have payment problems, and we adjust the allowance accordingly, with the offset to selling, general and administrative (“SG&A”) expense. Account balances are charged off against the allowance when recovery is considered remote. The allowance for doubtful accounts increased approximately $42,000 during fiscal 2015 to $3,085,000.

While we believe our allowances are adequate, changes in economic conditions, the financial health of customers and bankruptcy settlements could impact our future earnings. If the economic environment and market conditions deteriorate, particularly in the automotive and construction end markets where our exposure is greatest, additional reserves may be required.

Property and Depreciation:    Property, plant and equipment are carried at cost and depreciated using the straight-line method. Buildings and improvements are depreciated over 10 to 40 years and machinery and equipment over 3 to 20 years. Depreciation expense was $64,666,000, $62,344,000, and $56,002,000 during fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Accelerated depreciation methods are used for income tax purposes.

Goodwill and Other Long-Lived Assets:    We use the purchase method of accounting for all business combinations and recognize amortizable intangible assets separately from goodwill. The acquired assets and assumed liabilities in an acquisition are measured and recognized based on their estimated fair values at the date of acquisition, with goodwill representing the excess of the purchase price over the fair value of the identifiable net assets. A bargain purchase may occur, wherein the fair value of identifiable net assets exceeds the purchase price, and a gain is then recognized in the amount of that excess. Goodwill and intangible assets with indefinite lives are not amortized, but instead are tested for impairment annually, during the fourth quarter, or more frequently if events or changes in circumstances indicate that impairment may be present. Application of goodwill impairment testing involves judgment, including but not limited to, the identification of reporting units and estimation of the fair value of each reporting unit. A reporting unit is defined as an operating segment or one level below an operating segment. We test goodwill at the operating segment level as we have determined that the characteristics of the reporting units within each operating segment are similar and allow for their aggregation in accordance with the applicable accounting guidance.

The goodwill impairment test consists of comparing the fair value of each operating segment, determined using discounted cash flows, to each operating segment’s respective carrying value. If the estimated fair value of an operating segment exceeds its carrying value, there is no impairment. If the carrying amount of the operating segment exceeds its estimated fair value, goodwill impairment is indicated. The amount of the impairment is determined by comparing the fair value of the net assets of the operating segment, excluding goodwill, to its estimated fair value, with the difference representing the implied fair value of the goodwill. If the implied fair value of the goodwill is lower than its carrying value, the difference is recorded as an impairment charge in our consolidated statements of earnings. The impairment test for indefinite-lived intangible assets consists of a comparison of the fair value of the intangible asset to its carrying value. If the carrying value of the intangible asset exceeds its fair value, the difference is recorded as an impairment charge in our consolidated statements of earnings.

We review the carrying value of our long-lived assets, including intangible assets with finite useful lives, for impairment whenever events or changes in circumstances indicate that the carrying value of an asset or asset group may not be recoverable. Impairment testing involves a comparison of the sum of the undiscounted future cash flows of the asset or asset group to its respective carrying amount. If the sum of the undiscounted future cash flows exceeds the carrying amount, then no impairment exists. If the carrying amount exceeds the sum of the undiscounted future cash flows, then a second step is performed to determine the amount of impairment, if any, to be recognized. The loss recognized is equal to the amount that the carrying value of the asset or asset group exceeds fair value.

Our impairment testing for both goodwill and other long-lived assets, including intangible assets with finite useful lives, is largely based on cash flow models that require significant judgment and require assumptions about future volume trends, revenue and expense growth rates; and, in addition, external factors such as changes in economic trends and cost of capital. Significant changes in any of these assumptions could impact the outcomes of the tests performed. See “Note C – Goodwill and Other Long-Lived Assets” for additional details regarding these assets and related impairment testing.

Leases:    Certain lease agreements contain fluctuating or escalating payments and rent holiday periods. The related rent expense is recorded on a straight-line basis over the length of the lease term. Leasehold improvements made by the lessee, whether funded by the lessee or by landlord allowances or incentives, are recorded as leasehold improvement assets and will be amortized over the shorter of the economic life or the lease term. These incentives are also recorded as deferred rent and amortized as reductions in rent expense over the lease term.

Stock-Based Compensation:    At May 31, 2015, we had stock-based compensation plans for our employees as well as our non-employee directors as described more fully in “Note J – Stock-Based Compensation.” All share-based awards, including grants of stock options and restricted common shares, are recorded as expense in the consolidated statements of earnings based on their grant-date fair values.

Revenue Recognition:    We recognize revenue upon transfer of title and risk of loss, or in the case of toll processing revenue, upon delivery of the goods, provided evidence of an arrangement exists, pricing is fixed and determinable and the ability to collect is probable. We provide, through charges to net sales, for returns and allowances based on experience and current customer activities. We also provide, through charges to net sales, for customer rebates and sales discounts based on specific agreements and recent and anticipated levels of customer activity. In circumstances where the collection of payment is not probable at the time of shipment, we defer recognition of revenue until payment is collected.

Advertising Expense:    We expense advertising costs as incurred. Advertising expense was $11,153,000, $6,788,000, and $6,179,000 for fiscal 2015, fiscal 2014, and fiscal 2013, respectively.

Shipping and Handling Fees and Costs:    Shipping and handling fees billed to customers are included in net sales, and shipping and handling costs incurred are included in cost of goods sold.

Environmental Costs:    Environmental costs are capitalized if the costs extend the life of the property, increase its capacity, and/or mitigate or prevent contamination from future operations. Costs related to environmental contamination treatment and clean up are charged to expense.

Statements of Cash Flows:    Supplemental cash flow information was as follows for the fiscal years ended May 31:

(in thousands)	2015		2014		2013
Interest paid, net of amount capitalized	$	36,190	$	24,199	$	22,614
Income taxes paid, net of refunds		67,825		81,997		64,260

We use the “cumulative earnings” approach for determining cash flow presentation of distributions from our unconsolidated joint ventures. Distributions received are included in our consolidated statements of cash flows as operating activities, unless the cumulative distributions exceed our portion of the cumulative equity in the net earnings of the joint venture, in which case the excess distributions are deemed to be returns of the investment and are classified as investing activities in our consolidated statements of cash flows.

Income Taxes:    We account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and the financial reporting basis of our assets and liabilities. In assessing the realizability of deferred tax assets, we consider whether it is more likely than not that all, or a portion, of the deferred tax assets will not be realized. We provide a valuation allowance for deferred income tax assets when it is more likely than not that a portion of such deferred income tax assets will not be realized.

Tax benefits from uncertain tax positions that are recognized in the consolidated financial statements are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.

We have reserves for taxes and associated interest and penalties that may become payable in future years as a result of audits by taxing authorities. It is our policy to record these in income tax expense. While we believe the positions taken on previously filed tax returns are appropriate, we have established the tax and interest reserves in recognition that various taxing authorities may challenge our positions. The tax reserves are analyzed periodically, and adjustments are made as events occur to warrant adjustment to the reserves, such as lapsing of applicable statutes of limitations, conclusion of tax audits, additional exposure based on current calculations, identification of new issues and release of administrative guidance or court decisions affecting a particular tax issue.

Self-Insurance Reserves:    We are largely self-insured with respect to workers’ compensation, general and automobile liability, property damage, employee medical claims and other potential losses. In order to reduce risk and better manage our overall loss exposure, we purchase stop-loss insurance that covers individual claims in excess of the deductible amounts. We maintain reserves for the estimated cost to settle open claims, which includes estimates of legal costs expected to be incurred, as well as an estimate of the cost of claims that have been incurred but not reported. These estimates are based on actuarial valuations that take into consideration the historical average claim volume, the average cost for settled claims, current trends in claim costs, changes in our business and workforce, general economic factors and other assumptions believed to be reasonable under the circumstances. The estimated reserves for these liabilities could be affected if future occurrences and claims differ from assumptions used and historical trends.

Recently Issued Accounting Standards:    In May 2014, amended accounting guidance was issued that replaces most existing revenue recognition guidance under U.S. GAAP. The amended guidance requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The amended guidance is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is not permitted. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations. The amended guidance permits the use of either the retrospective or cumulative effect transition method. We have not selected a transition method nor have we determined the effect of the amended guidance on our ongoing financial reporting.

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Related Party Transactions - Additional Information (Detail) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Related Party Transaction [Line Items]
Net sales to affiliates	$ 32,277,000	$ 31,441,000	$ 19,568,000
Purchases from affiliates	8,021,000	9,387,000	$ 4,930,000
Receivables from affiliates	5,826,000	4,124,000
Payable to affiliates	$ 11,528,000	$ 12,716,000

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Guarantees - Additional Information (Detail)	May. 31, 2015 USD ($)
Operating Lease of Aircraft
Loss Contingencies [Line Items]
Maximum potential obligation	$ 11,736,000
Term Loan
Loss Contingencies [Line Items]
Maximum potential obligation	$ 1,667,000

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Segment Data (Tables)

12 Months Ended

May. 31, 2015

Financial Information for Reportable Segments

The following table presents summarized financial information for our reportable business segments as of, and for the fiscal years ended, May 31:

(in thousands)	2015			2014			2013
Net sales
Steel Processing	$	2,145,744		$	1,936,073		$	1,462,630
Pressure Cylinders		1,001,402			928,396			859,264
Engineered Cabs		192,953			200,528			226,002
Other		44,135			61,429			64,348
Total net sales	$	3,384,234		$	3,126,426		$	2,612,244
Operating income (loss)
Steel Processing	$	108,707		$	119,025		$	68,156
Pressure Cylinders		58,113			55,004			66,367
Engineered Cabs		(97,260	)		(26,516	)		4,158
Other		(9,003	)		(11,760	)		(9,539	)
Total operating income	$	60,557		$	135,753		$	129,142
Depreciation and amortization
Steel Processing	$	34,526		$	32,882		$	25,918
Pressure Cylinders		34,953			31,984			26,919
Engineered Cabs		10,184			10,027			9,096
Other		5,426			4,837			4,536
Total depreciation and amortization	$	85,089		$	79,730		$	66,469
Impairment of goodwill and long-lived assets
Steel Processing	$	3,050		$	7,141		$	-
Pressure Cylinders		11,911			32,005			6,488
Engineered Cabs		83,989			19,100			-
Other		1,179			-			-
Total impairment of goodwill and long-lived assets	$	100,129		$	58,246		$	6,488
Restructuring and other expense (income)
Steel Processing	$	72		$	(3,382	)	$	-
Pressure Cylinders		6,408			(745	)		2,665
Engineered Cabs		(332	)		-			-
Other		366			1,215			628
Total restructuring and other expense (income)	$	6,514		$	(2,912	)	$	3,293
Joint venture transactions
Steel Processing	$	-		$	-		$	-
Pressure Cylinders		-			-			-
Engineered Cabs		-			-			-
Other		413			1,036			(604	)
Total joint venture transactions	$	413		$	1,036		$	(604	)
Total assets
Steel Processing	$	829,116		$	850,748		$	610,464
Pressure Cylinders		804,799			818,720			742,686
Engineered Cabs		94,506			181,251			201,048
Other		356,721			445,662			396,659
Total assets	$	2,085,142		$	2,296,381		$	1,950,857
Capital expenditures
Steel Processing	$	34,546			16,682		$	8,371
Pressure Cylinders		35,872			32,364			13,368
Engineered Cabs		8,951			10,351			6,265
Other		16,886			11,941			16,584
Total capital expenditures	$	96,255		$	71,338		$	44,588

Net Sales by Geographic Region

The following table presents net sales by geographic region for the years ended May 31:

(in thousands)	2015		2014		2013
United States	$	3,175,972	$	2,917,484	$	2,418,307
Europe		125,778		136,513		159,562
Mexico		56,687		51,430		-
Canada		6,464		10,324		21,257
Other		19,333		10,675		13,118
Total	$	3,384,234	$	3,126,426	$	2,612,244

Property, Plant and Equipment, Net by Geographic Region

The following table presents property, plant and equipment, net, by geographic region as of May 31:

(in thousands)	2015		2014
United States	$	439,296	$	429,068
Europe		50,520		56,884
Mexico		5,030		6,314
Canada		4,284		-
Other		14,060		6,595
Total	$	513,190	$	498,861

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Subsequent Events

12 Months Ended

May. 31, 2015

Subsequent Events

Note U – Subsequent Events

On June 26, 2015, the Company announced the closure of its stainless steel business, PSM. The Company is in the process of winding down operations and expects to complete the exit of the facility by December 2015. The Company estimates that the closure will result in restructuring charges in the range of $1,000,000 to $1,500,000, primarily due to severance costs.

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Quarterly Results of Operations (Unaudited)

12 Months Ended

May. 31, 2015

Quarterly Results of Operations (Unaudited)

Note T – Quarterly Results of Operations (Unaudited)

The following table summarizes the unaudited quarterly consolidated results of operations for fiscal 2015 and fiscal 2014:

(in thousands, except per share)	Three Months Ended
Fiscal 2015	August 31		November 30		February 28			May 31
Net sales	$	862,414	$	871,012	$	804,785		$	846,023
Gross margin		129,507		125,223		98,491			110,312
Impairment of goodwill and long-lived assets (1)		1,950		14,235		81,600			2,344
Net earnings (loss)		48,820		31,455		(23,243	)		30,226
Net earnings (loss) attributable to controlling interest		44,168		29,462		(25,710	)		28,865
Earnings (loss) per share - basic	$	0.65	$	0.44	$	(0.39	)	$	0.45
Earnings (loss) per share - diluted		0.63		0.43		(0.39	)		0.44
Fiscal 2014	August 31		November 30		February 28			May 31
Net sales	$	692,291	$	769,900	$	773,230		$	891,005
Gross margin		110,964		128,232		122,487			130,836
Impairment of goodwill and long-lived assets (1)		4,641		30,734		-			22,871
Net earnings		56,353		28,340		44,211			31,248
Net earnings attributable to controlling interest		54,557		22,977		40,603			33,163
Earnings per share - basic	$	0.78	$	0.33	$	0.59		$	0.49
Earnings per share - diluted		0.76		0.32		0.57			0.47

(1) For additional information regarding the Company’s impairment charges, refer to “Note C – Goodwill and Other Long-Lived Assets.”

The sum of the quarterly earnings per share data presented in the table may not equal the annual results due to rounding and the impact of dilutive securities on the annual versus the quarterly earnings per share calculations.

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Net Sales by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May. 31, 2015	May. 31, 2014	May. 31, 2013
Segment Reporting Information [Line Items]
Net sales	$ 846,023	$ 804,785	$ 871,012	$ 862,414	$ 891,005	$ 773,230	$ 769,900	$ 692,291	$ 3,384,234	$ 3,126,426	$ 2,612,244
UNITED STATES
Segment Reporting Information [Line Items]
Net sales									3,175,972	2,917,484	2,418,307
Europe
Segment Reporting Information [Line Items]
Net sales									125,778	136,513	159,562
Mexico
Segment Reporting Information [Line Items]
Net sales									56,687	51,430
CANADA
Segment Reporting Information [Line Items]
Net sales									6,464	10,324	21,257
Other Countries
Segment Reporting Information [Line Items]
Net sales									$ 19,333	$ 10,675	$ 13,118

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Summary of Other Intangible Assets by Class (Detail) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Other Intangible Assets [Line Items]
Indefinite-lived intangible assets, cost	$ 12,601	$ 12,601
Cost	166,664	181,499
Definite-lived intangible assets, cost	154,063	168,898
Accumulated Amortization	47,547	35,506
Trademarks
Other Intangible Assets [Line Items]
Indefinite-lived intangible assets, cost	12,601	12,601
Customer relationships
Other Intangible Assets [Line Items]
Definite-lived intangible assets, cost	119,871	143,585
Accumulated Amortization	34,421	28,257
Non-compete agreements
Other Intangible Assets [Line Items]
Definite-lived intangible assets, cost	14,221	10,733
Accumulated Amortization	6,897	4,263
Technology / know-how
Other Intangible Assets [Line Items]
Definite-lived intangible assets, cost	15,633	12,068
Accumulated Amortization	2,350	1,273
Other Intangible Assets
Other Intangible Assets [Line Items]
Definite-lived intangible assets, cost	4,338	2,512
Accumulated Amortization	$ 3,879	$ 1,713

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Acquisitions (Tables)

12 Months Ended

May. 31, 2015

Rome Strip Steel

Schedule of Acquisition of Intangible Assets

In connection with the acquisition of the assets of Rome Strip Steel, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	4,300		10
Non-compete agreements		1,200		5
Total acquired identifiable intangible assets	$	5,500

Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed

The following table summarizes the consideration transferred for the assets of Rome Strip Steel and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Cash	$	10
Accounts receivable		6,333
Inventories		17,063
Prepaid expenses		41
Intangible assets		5,500
Property, plant and equipment		22,775
Total identifiable assets		51,722
Accounts payable		(3,091	)
Other accrued items		(410	)
Other liabilites		(313	)
Net assets		47,908
Goodwill		6,587
Purchase price	$	54,495
Plus: estimated working capital deficit		817
Cash paid at closing	$	55,312

DHybrid Systems Llc

Schedule of Acquisition of Intangible Assets

In connection with the acquisition of the assets of dHybrid, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Technological know-how	$	3,100		10
Customer relationships		600		7
Backlog		88		Less than 1
Total acquired identifiable intangible assets	$	3,788

Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed

The following table summarizes the consideration transferred for our 79.59% interest in dHybrid and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Consideration Transferred:
Cash consideration	$	11,939
Fair value of contingent consideration		3,979
Total consideration	$	15,918
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash and cash equivalents	$	1,132
Accounts receivable		1,482
Inventories		2,732
Prepaid expenses and other current assets		38
Intangible assets		3,788
Property, plant and equipment		406
Total identifiable assets		9,578
Accounts payable		(1,867	)
Accrued liabilities		(533	)
Long-term debt		(5,000	)
Net identifiable assets		2,178
Goodwill		17,822
Net assets		20,000
Noncontrolling interest		(4,082	)
Total consideration	$	15,918

MEF

Schedule of Acquisition of Intangible Assets

In connection with the acquisition of the assets of MEF, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful Life (Years)
Category
Technological know-how	$	5,100		10
Customer relationships		4,300		7
Non-compete agreements		2,400		4
Backlog		1,800		Less than 1
Total acquired identifiable intangible assets	$	13,600

Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed

The following table summarizes the consideration transferred for the assets of MEF and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Accounts receivable	$	3,329
Inventories		3,550
Intangible assets		13,600
Property, plant and equipment		166
Total identifiable assets		20,645
Accounts payable		(555	)
Other accrued items		(92	)
Deferred revenue		(4,808	)
Net assets		15,190
Goodwill		23,251
Cash consideration	$	38,441

JRE

Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed

The following table summarizes the consideration transferred for the assets of JRE and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Cash	$	253
Accounts receivable		509
Inventories		2,793
Prepaid expense and other current assets		40
Property, plant and equipment		250
Total identifiable assets		3,845
Accounts payable		(514	)
Other accrued items		(2,160	)
Net identifiable assets		1,171
Goodwill		400
Total cash consideration	$	1,571

Steffes

Schedule of Acquisition of Intangible Assets

In connection with the acquisition of Steffes, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful Life (Years)
Category
Customer relationships	$	10,000		9
Trade name		290		Less than 1
Total acquired identifiable intangible assets	$	10,290

Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed

The following table summarizes the consideration transferred for Steffes and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Inventories	$	2,316
Intangible assets		10,290
Property, plant and equipment		2,638
Total identifiable assets		15,244
Goodwill		12,718
Purchase price	$	27,962

Worthington Aritas

Schedule of Acquisition of Intangible Assets

In connection with the acquisition of our 75% interest in Worthington Aritas, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	8,400		10
Technological know-how		8,100		20
Trade name		180		2
Non-compete agreements		120		3
Total acquired identifiable intangible assets	$	16,800

Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed

The following table summarizes the consideration transferred for Worthington Aritas and the final fair values assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)	Preliminary Valuation February 28, 2014			Measurement Period Adjustments			Final Valuation May 31, 2014
Cash and cash equivalents	$	1,037		$	-		$	1,037
Accounts receivable		3,326			(84	)		3,242
Inventories		10,678			-			10,678
Prepaid expenses and other current assets		1,317			-			1,317
Intangible assets		16,800			-			16,800
Other noncurrent assets		1,099			-			1,099
Property, plant and equipment		5,467			-			5,467
Total identifiable assets		39,724			(84	)		39,640
Accounts payable		(5,587	)		-			(5,587	)
Short-term borrowings		(251	)		-			(251	)
Accrued liabilities		(2,756	)		(4,146	)		(6,902	)
Other liabilities		(4,954	)		4,954			-
Deferred taxes		(2,787	)		-			(2,787	)
Net identifiable assets		23,389			724			24,113
Goodwill		23,586			(599	)		22,987
Net assets		46,975			125			47,100
Noncontrolling interest		(11,744	)		(31	)		(11,775	)
Total consideration	$	35,231		$	94		$	35,325

TWB

Schedule of Acquisition of Intangible Assets

In connection with the acquisition of TWB, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	17,438		5-6
Trade names		4,120		Indefinite
Non-compete agreement		470		5
Total acquired identifiable intangible assets	$	22,028

Schedule of Consideration Transferred and Fair Value Assigned to Assets Acquired And Liabilities Assumed

The following table summarizes the consideration transferred for our 55% controlling interest in TWB and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Consideration Transferred:
Cash consideration	$	17,869
Fair value of previously held equity interest in TWB		72,369
Total consideration	$	90,238
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash and cash equivalents	$	70,826
Accounts receivable		52,012
Inventories		20,403
Prepaid expenses and other current assets		4,027
Intangible assets		22,028
Other noncurrent assets		103
Property, plant and equipment		52,390
Total identifiable assets		221,789
Accounts payable		(50,642	)
Accrued liabilities		(6,431	)
Deferred taxes		(2,109	)
Net assets		162,607
Noncontrolling interest		(72,369	)
Total consideration	$	90,238

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Schedule ii - Valuation and Qualifying Accounts

12 Months Ended

May. 31, 2015

Schedule ii - Valuation and Qualifying Accounts

WORTHINGTON INDUSTRIES, INC. AND SUBSIDIARIES

SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS

COL. A.	COL. B.		COL. C.				COL. D.		COL. E.
Description			Additions
	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts – Describe (A)		Deductions – Describe (B)		Balance at End of Period
Year Ended May 31, 2015: Deducted from asset accounts: Allowance for possible losses on trade accounts receivable	$	3,043,000	$	259,000	$	-	$	217,000	$	3,085,000
Year Ended May 31, 2014: Deducted from asset accounts: Allowance for possible losses on trade accounts receivable	$	3,408,000	$	32,000	$	-	$	397,000	$	3,043,000
Year Ended May 31, 2013: Deducted from asset accounts: Allowance for possible losses on trade accounts receivable	$	3,329,000	$	783,000	$	26,000	$	730,000	$	3,408,000

Note A – Miscellaneous amounts.

Note B – Uncollectable accounts charged to the allowance.

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

May. 31, 2015

Consolidation

Consolidation:    The consolidated financial statements include the accounts of Worthington Industries, Inc. and consolidated subsidiaries (collectively, “we,” “our,” “Worthington,” or the “Company”). Investments in unconsolidated affiliates are accounted for using the equity method. Significant intercompany accounts and transactions are eliminated.

dHybrid Systems, LLC (“dHybrid”), Spartan Steel Coating, LLC (“Spartan”), TWB Company, L.L.C. (“TWB”), Worthington Aritaş Basinçli Kaplar Sanayi (“Worthington Aritas”), Worthington Energy Innovations, LLC (“WEI”), and Worthington Nitin Cylinders Limited (“Worthington Nitin Cylinders”) in which we own controlling interests of 79.59%, 52%, 55%, 75%, 75%, and 60%, respectively, are consolidated with the equity owned by the other joint venture members shown as noncontrolling interests in our consolidated balance sheets, and the other joint venture members’ portions of net earnings and other comprehensive income shown as net earnings or comprehensive income attributable to noncontrolling interests in our consolidated statements of earnings and consolidated statements of comprehensive income, respectively.

Use of Estimates

Use of Estimates:    The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash and Cash Equivalents:    We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.

Inventories

Inventories:    Inventories are valued at the lower of cost or market. Cost is determined using the first-in, first-out method for all inventories. Due to the decline in steel prices, the replacement cost of our inventory was lower than what was reflected in our records at May 31, 2015. Accordingly, we recorded a lower of cost or market adjustment of $1,716,000 at May 31, 2015 to reflect this lower value. The entire amount related to our Steel Processing operating segment and was recorded in cost of goods sold. We believe our inventories were valued appropriately as of May 31, 2015 and May 31, 2014.

Derivative Financial Instruments

Derivative Financial Instruments:    We utilize derivative financial instruments to manage exposure to certain risks related to our ongoing operations. The primary risks managed through the use of derivative instruments include interest rate risk, currency exchange risk and commodity price risk. All derivative instruments are accounted for using mark-to-market accounting. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it. Gains and losses on fair value hedges are recognized in current period earnings in the same line as the underlying hedged item. The effective portion of gains and losses on cash flow hedges is deferred as a component of accumulated other comprehensive income or loss (“AOCI”) and recognized in earnings at the time the hedged item affects earnings, in the same financial statement caption as the underlying hedged item. Ineffectiveness of the hedges during the fiscal year ended May 31, 2015 (“fiscal 2015”), the fiscal year ended May 31, 2014 (“fiscal 2014”) and the fiscal year ended May 31, 2013 (“fiscal 2013”) was immaterial. Classification in the consolidated statements of earnings of gains and losses related to derivative instruments that do not qualify for hedge accounting is determined based on the underlying intent of the instruments. Cash flows related to derivative instruments are generally classified as operating activities in our consolidated statements of cash flows.

In order for hedging relationships to qualify for hedge accounting under current accounting guidance, we formally document each hedging relationship and its risk management objective. This documentation includes the hedge strategy, the hedging instrument, the hedged item, the nature of the risk being hedged, how hedge effectiveness will be assessed prospectively and retrospectively as well as a description of the method used to measure hedge ineffectiveness.

Derivative instruments are executed only with highly-rated financial institutions. No credit loss is anticipated on existing instruments, and no such material losses have been experienced to date. We monitor our positions, as well as the credit ratings of counterparties to those positions.

We discontinue hedge accounting when it is determined that the derivative instrument is no longer effective in offsetting the hedged risk, expires or is sold, is terminated or is no longer designated as a hedging instrument because it is unlikely that a forecasted transaction will occur or we determine that designation of the hedging instrument is no longer appropriate. In all situations in which hedge accounting is discontinued and the derivative instrument is retained, we continue to carry the derivative instrument at its fair value on the consolidated balance sheet and recognize any subsequent changes in its fair value in net earnings immediately. When it is probable that a forecasted transaction will not occur, we discontinue hedge accounting and immediately recognize the gains and losses that were accumulated in AOCI.

Refer to “Note P – Derivative Instruments and Hedging Activities” for additional information regarding the consolidated balance sheet location and the risk classification of our derivative instruments.

Risks and Uncertainties

Risks and Uncertainties:    As of May 31, 2015, we, together with our unconsolidated affiliates, operated 83 manufacturing facilities in 26 states and 11 countries. A total of 33 of these facilities are operated by wholly-owned and consolidated subsidiaries of the Company. The remaining facilities are operated by our consolidated and unconsolidated joint ventures. As of May 31, 2015, we held equity positions in 13 active joint ventures, of which six are consolidated. Our largest market is the automotive market, which comprised 38% and 36% of consolidated net sales in fiscal 2015 and fiscal 2014, respectively. Our foreign operations represented 6% and 7% of consolidated net sales, (2)% of pre-tax earnings attributable to controlling interest, and 14% and 15% of consolidated net assets as of and for the years ended May 31, 2015 and 2014, respectively. As of May 31, 2015, approximately 6% of our consolidated labor force was represented by collective bargaining agreements. The concentration of credit risks from financial instruments related to the markets we serve is not expected to have a material adverse effect on our consolidated financial position, cash flows or future results of operations.

In fiscal 2015, our largest customer accounted for approximately 7% of our consolidated net sales, and our ten largest customers accounted for approximately 29% of our consolidated net sales. A significant loss of, or decrease in, business from any of these customers could have an adverse effect on our sales and financial results if we cannot obtain replacement business. Also, due to consolidation within the industries we serve, including the construction, automotive and retail industries, our sales may be increasingly sensitive to deterioration in the financial condition of, or other adverse developments with respect to, one or more of our largest customers.

Our principal raw material is flat-rolled steel, which we purchase from multiple primary steel producers. The steel industry as a whole has been cyclical, and at times availability and pricing can be volatile due to a number of factors beyond our control. This volatility can significantly affect our steel costs. In an environment of increasing prices for steel and other raw materials, in general, competitive conditions may impact how much of the price increases we can pass on to our customers. To the extent we are unable to pass on future price increases in our raw materials to our customers, our financial results could be adversely affected. Also, if steel prices decrease, in general, competitive conditions may impact how quickly we must reduce our prices to our customers and we could be forced to use higher-priced raw materials to complete orders for which the selling prices have decreased. Declining steel prices could also require us to write-down the value of our inventories to reflect current market pricing. Further, the number of suppliers has decreased in recent years due to industry consolidation and the financial difficulties of certain suppliers, and consolidation may continue. Accordingly, if delivery from a major steel supplier is disrupted, it may be more difficult to obtain an alternative supply than in the past.

Receivables

Receivables:    We review our receivables on an ongoing basis to ensure that they are properly valued and collectible. This is accomplished through two contra-receivable accounts: returns and allowances and allowance for doubtful accounts. Returns and allowances, including limited warranties on certain products, are used to record estimates of returns or other allowances resulting from quality, delivery, discounts or other issues affecting the value of receivables. This account is estimated based on historical trends and current market conditions, with the offset to net sales. The returns and allowances account increased approximately $626,000 during fiscal 2015 to $6,393,000. The portion of the liability related to product warranties was immaterial at May 31, 2015 and May 31, 2014.

The allowance for doubtful accounts is used to record the estimated risk of loss related to the customers’ inability to pay. This allowance is maintained at a level that we consider appropriate based on factors that affect collectability, such as the financial health of our customers, historical trends of charge-offs and recoveries and current economic and market conditions. As we monitor our receivables, we identify customers that may have payment problems, and we adjust the allowance accordingly, with the offset to selling, general and administrative (“SG&A”) expense. Account balances are charged off against the allowance when recovery is considered remote. The allowance for doubtful accounts increased approximately $42,000 during fiscal 2015 to $3,085,000.

While we believe our allowances are adequate, changes in economic conditions, the financial health of customers and bankruptcy settlements could impact our future earnings. If the economic environment and market conditions deteriorate, particularly in the automotive and construction end markets where our exposure is greatest, additional reserves may be required.

Property and Depreciation

Property and Depreciation:    Property, plant and equipment are carried at cost and depreciated using the straight-line method. Buildings and improvements are depreciated over 10 to 40 years and machinery and equipment over 3 to 20 years. Depreciation expense was $64,666,000, $62,344,000, and $56,002,000 during fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Accelerated depreciation methods are used for income tax purposes.

Goodwill and Other Long-Lived Assets

Goodwill and Other Long-Lived Assets:    We use the purchase method of accounting for all business combinations and recognize amortizable intangible assets separately from goodwill. The acquired assets and assumed liabilities in an acquisition are measured and recognized based on their estimated fair values at the date of acquisition, with goodwill representing the excess of the purchase price over the fair value of the identifiable net assets. A bargain purchase may occur, wherein the fair value of identifiable net assets exceeds the purchase price, and a gain is then recognized in the amount of that excess. Goodwill and intangible assets with indefinite lives are not amortized, but instead are tested for impairment annually, during the fourth quarter, or more frequently if events or changes in circumstances indicate that impairment may be present. Application of goodwill impairment testing involves judgment, including but not limited to, the identification of reporting units and estimation of the fair value of each reporting unit. A reporting unit is defined as an operating segment or one level below an operating segment. We test goodwill at the operating segment level as we have determined that the characteristics of the reporting units within each operating segment are similar and allow for their aggregation in accordance with the applicable accounting guidance.

The goodwill impairment test consists of comparing the fair value of each operating segment, determined using discounted cash flows, to each operating segment’s respective carrying value. If the estimated fair value of an operating segment exceeds its carrying value, there is no impairment. If the carrying amount of the operating segment exceeds its estimated fair value, goodwill impairment is indicated. The amount of the impairment is determined by comparing the fair value of the net assets of the operating segment, excluding goodwill, to its estimated fair value, with the difference representing the implied fair value of the goodwill. If the implied fair value of the goodwill is lower than its carrying value, the difference is recorded as an impairment charge in our consolidated statements of earnings. The impairment test for indefinite-lived intangible assets consists of a comparison of the fair value of the intangible asset to its carrying value. If the carrying value of the intangible asset exceeds its fair value, the difference is recorded as an impairment charge in our consolidated statements of earnings.

We review the carrying value of our long-lived assets, including intangible assets with finite useful lives, for impairment whenever events or changes in circumstances indicate that the carrying value of an asset or asset group may not be recoverable. Impairment testing involves a comparison of the sum of the undiscounted future cash flows of the asset or asset group to its respective carrying amount. If the sum of the undiscounted future cash flows exceeds the carrying amount, then no impairment exists. If the carrying amount exceeds the sum of the undiscounted future cash flows, then a second step is performed to determine the amount of impairment, if any, to be recognized. The loss recognized is equal to the amount that the carrying value of the asset or asset group exceeds fair value.

Our impairment testing for both goodwill and other long-lived assets, including intangible assets with finite useful lives, is largely based on cash flow models that require significant judgment and require assumptions about future volume trends, revenue and expense growth rates; and, in addition, external factors such as changes in economic trends and cost of capital. Significant changes in any of these assumptions could impact the outcomes of the tests performed. See “Note C – Goodwill and Other Long-Lived Assets” for additional details regarding these assets and related impairment testing.

Leases

Leases:    Certain lease agreements contain fluctuating or escalating payments and rent holiday periods. The related rent expense is recorded on a straight-line basis over the length of the lease term. Leasehold improvements made by the lessee, whether funded by the lessee or by landlord allowances or incentives, are recorded as leasehold improvement assets and will be amortized over the shorter of the economic life or the lease term. These incentives are also recorded as deferred rent and amortized as reductions in rent expense over the lease term.

Stock-Based Compensation

Stock-Based Compensation:    At May 31, 2015, we had stock-based compensation plans for our employees as well as our non-employee directors as described more fully in “Note J – Stock-Based Compensation.” All share-based awards, including grants of stock options and restricted common shares, are recorded as expense in the consolidated statements of earnings based on their grant-date fair values.

Revenue Recognition

Revenue Recognition:    We recognize revenue upon transfer of title and risk of loss, or in the case of toll processing revenue, upon delivery of the goods, provided evidence of an arrangement exists, pricing is fixed and determinable and the ability to collect is probable. We provide, through charges to net sales, for returns and allowances based on experience and current customer activities. We also provide, through charges to net sales, for customer rebates and sales discounts based on specific agreements and recent and anticipated levels of customer activity. In circumstances where the collection of payment is not probable at the time of shipment, we defer recognition of revenue until payment is collected.

Advertising Expense

Advertising Expense:    We expense advertising costs as incurred. Advertising expense was $11,153,000, $6,788,000, and $6,179,000 for fiscal 2015, fiscal 2014, and fiscal 2013, respectively.

Shipping and Handling Fees and Costs

Shipping and Handling Fees and Costs:    Shipping and handling fees billed to customers are included in net sales, and shipping and handling costs incurred are included in cost of goods sold.

Environmental Costs

Environmental Costs:    Environmental costs are capitalized if the costs extend the life of the property, increase its capacity, and/or mitigate or prevent contamination from future operations. Costs related to environmental contamination treatment and clean up are charged to expense.

Income Taxes

Income Taxes:    We account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and the financial reporting basis of our assets and liabilities. In assessing the realizability of deferred tax assets, we consider whether it is more likely than not that all, or a portion, of the deferred tax assets will not be realized. We provide a valuation allowance for deferred income tax assets when it is more likely than not that a portion of such deferred income tax assets will not be realized.

Tax benefits from uncertain tax positions that are recognized in the consolidated financial statements are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.

We have reserves for taxes and associated interest and penalties that may become payable in future years as a result of audits by taxing authorities. It is our policy to record these in income tax expense. While we believe the positions taken on previously filed tax returns are appropriate, we have established the tax and interest reserves in recognition that various taxing authorities may challenge our positions. The tax reserves are analyzed periodically, and adjustments are made as events occur to warrant adjustment to the reserves, such as lapsing of applicable statutes of limitations, conclusion of tax audits, additional exposure based on current calculations, identification of new issues and release of administrative guidance or court decisions affecting a particular tax issue.

Self-Insurance Reserves

Self-Insurance Reserves:    We are largely self-insured with respect to workers’ compensation, general and automobile liability, property damage, employee medical claims and other potential losses. In order to reduce risk and better manage our overall loss exposure, we purchase stop-loss insurance that covers individual claims in excess of the deductible amounts. We maintain reserves for the estimated cost to settle open claims, which includes estimates of legal costs expected to be incurred, as well as an estimate of the cost of claims that have been incurred but not reported. These estimates are based on actuarial valuations that take into consideration the historical average claim volume, the average cost for settled claims, current trends in claim costs, changes in our business and workforce, general economic factors and other assumptions believed to be reasonable under the circumstances. The estimated reserves for these liabilities could be affected if future occurrences and claims differ from assumptions used and historical trends.

Recently Issued Accounting Standards

Recently Issued Accounting Standards:    In May 2014, amended accounting guidance was issued that replaces most existing revenue recognition guidance under U.S. GAAP. The amended guidance requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The amended guidance is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is not permitted. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations. The amended guidance permits the use of either the retrospective or cumulative effect transition method. We have not selected a transition method nor have we determined the effect of the amended guidance on our ongoing financial reporting.

Economic (Non-designated) Hedges

Economic (Non-designated) Hedges

We enter into foreign currency contracts to manage our foreign exchange exposure related to inter-company and financing transactions that do not meet the requirements for hedge accounting treatment. We also enter into certain commodity contracts that do not qualify for hedge accounting treatment. Accordingly, these derivative instruments are adjusted to current market value at the end of each period through earnings.

Cash Flow Hedges

Cash Flow Hedges

Cash Flow Hedges

We enter into derivative instruments to hedge our exposure to changes in cash flows attributable to interest rate and commodity price fluctuations associated with certain forecasted transactions. These derivative instruments are designated and qualify as cash flow hedges. Accordingly, the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income (“OCI”) and reclassified into earnings in the same line associated with the forecasted transaction and in the same period during which the hedged transaction affects earnings. The ineffective portion of the gain or loss on the derivative instrument is recognized in earnings immediately.

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Consolidated Statements of Cash Flows - Entity [Domain] - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Operating activities:
Net earnings	$ 87,256	$ 160,152	$ 136,835
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	85,089	79,730	66,469
Impairment of goodwill and long-lived assets	100,129	58,246	6,488
Provision (benefit) for deferred income taxes	(39,960)	(25,916)	1,798
Bad debt expense	259	32	783
Equity in net income of unconsolidated affiliates, net of distributions	(12,299)	(15,333)	(10,948)
Net loss (gain) on sale of assets	3,277	(11,212)	1,121
Stock-based compensation	17,916	22,017	13,270
Excess tax benefits - stock-based compensation	(7,178)	(8,880)	(5,183)
Gain on previously held equity interest in TWB Company, L.L.C.		(11,000)
Changes in assets and liabilities, net of impact of acquisitions:
Receivables	32,011	(49,206)	18,801
Inventories	54,108	(38,010)	77,115
Prepaid expenses and other current assets	(15,295)	(2,921)	871
Other assets	1,617	(5,278)	4,636
Accounts payable and accrued expenses	(83,190)	69,682	(47,483)
Other liabilities	(9,365)	6,943	8,404
Net cash provided by operating activities	214,375	229,046	272,977
Investing activities:
Investment in property, plant and equipment	(96,255)	(71,338)	(44,588)
Investment in notes receivable	(7,300)
Acquisitions, net of cash acquired	(105,291)	(11,517)	(175,225)
Distributions from (investment in) unconsolidated affiliate(s)	(8,230)	9,223	863
Proceeds from sale of assets and insurance	14,007	27,438	16,974
Net cash used by investing activities	(203,069)	(46,194)	(201,976)
Financing activities:
Net proceeds from (payments of) short-term borrowings, net of issuance costs	79,047	(103,618)	(168,446)
Proceeds from long-term debt, net of issuance costs	30,572	247,566	150,000
Principal payments on long-term debt	(102,852)	(1,219)	(1,480)
Proceeds from issuance of common shares	2,910	4,618	37,914
Excess tax benefits - stock-based compensation	7,178	8,880	5,183
Payments to noncontrolling interests	(15,189)	(40,969)	(9,254)
Repurchase of common shares	(127,360)	(128,218)	(30,417)
Dividends paid	(46,434)	(31,198)	(44,144)
Net cash used by financing activities	(170,318)	(44,158)	(60,644)
Increase (decrease) in cash and cash equivalents	(159,012)	138,694	10,357
Cash and cash equivalents at beginning of year	190,079	51,385	41,028
Cash and cash equivalents at end of year	31,067	190,079	51,385
Noncontrolling Interest In Consolidated Entity
Financing activities:
Payments to noncontrolling interests	$ (13,379)	$ (40,969)	$ (9,254)

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

May. 31, 2015

Supplemental Cash Flow Information

Supplemental cash flow information was as follows for the fiscal years ended May 31:

(in thousands)	2015		2014		2013
Interest paid, net of amount capitalized	$	36,190	$	24,199	$	22,614
Income taxes paid, net of refunds		67,825		81,997		64,260

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Employee Pension Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Estimated net loss	$ (433,654)
Description of investment policy and strategy for the defined benefit plan	The investment policy and strategy for the defined benefit plan is (i) long-term in nature with liquidity requirements that are anticipated to be minimal due to the projected normal retirement date of the average employee and the current average age of participants
Weighted-average asset allocation	100.00%	100.00%
Expected employer contribution to defined benefit plan during fiscal 2016	$ 0
Net periodic pension costs	$ (254,000)	$ (248,000)	$ 194,000
Assumed salary rate increase	0.00%	0.00%	0.00%
Discount rate	4.38%	4.44%	4.16%
Fixed Income Investments | Minimum
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocation	20.00%
Fixed Income Investments | Maximum
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocation	40.00%
Austrian Pressure Cylinders
Defined Benefit Plan Disclosure [Line Items]
Accrued liability of unfunded plans included in other liabilities	$ 5,564,000	$ 6,440,000
Net periodic pension costs	$ 718,000	$ 677,000	$ 689,000
Assumed salary rate increase	3.00%	3.00%	3.00%
Discount rate	1.60%	3.25%	4.50%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocation	53.00%	52.00%
Equity Securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocation	60.00%
Equity Securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocation	80.00%

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Operating Leases - Additional Information (Detail) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Operating Leased Assets [Line Items]
Operating leases rent expenses	$ 17,219,000	$ 14,677,000	$ 13,831,000

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Employee Pension Plans (Tables)

12 Months Ended

May. 31, 2015

Components of Net Periodic Pension Cost for the Defined Benefit Plan and the Defined Contribution Plans

The following table summarizes the components of net periodic pension cost for the defined benefit plan and the defined contribution plans for the years ended May 31:

(in thousands)	2015			2014			2013
Defined benefit plan:
Interest cost	$	1,541		$	1,403		$	1,361
Actual return on plan assets		1,846			2,524			4,355
Net amortization and deferral		(3,641	)		(4,175	)		(5,522	)
Net periodic pension cost (benefit) on defined benefit plan		(254	)		(248	)		194
Defined contribution plans		13,270			12,586			9,955
Total retirement plan cost	$	13,016		$	12,338		$	10,149

Actuarial Assumptions Used for Defined Benefit Plan

The following actuarial assumptions were used for our defined benefit plan:

	2015			2014			2013
To determine benefit obligation:
Discount rate		4.07	%		4.38	%		4.44	%
To determine net periodic pension cost:
Discount rate		4.38	%		4.44	%		4.16	%
Expected long-term rate of return		7.00	%		8.00	%		8.00	%
Rate of compensation increase		n/a			n/a			n/a

Reconciliation of the Changes in the Projected Benefit Obligation and Fair Value of Plan Assets and the Funded Status for the Gerstenslager Plan

The following tables provide a reconciliation of the changes in the projected benefit obligation and fair value of plan assets and the funded status for the Gerstenslager Plan during fiscal 2015 and fiscal 2014 as of the respective measurement dates:

(in thousands)	May 31, 2015			May 31, 2014
Change in benefit obligation
Benefit obligation, beginning of year	$	35,539		$	31,930
Interest cost		1,541			1,403
Actuarial loss		3,924			3,002
Benefits paid		(777	)		(796	)
Benefit obligation, end of year	$	40,227		$	35,539
Change in plan assets
Fair value, beginning of year	$	26,470		$	24,442
Actual return on plan assets		1,846			2,524
Company contributions		620			300
Benefits paid		(777	)		(796	)
Fair value, end of year	$	28,159		$	26,470
Funded status	$	(12,068	)	$	(9,069	)
Amounts recognized in the consolidated balance sheets consist of:
Other liabilities	$	(12,067	)	$	(9,069	)
Accumulated other comprehensive loss		17,900			14,028
Amounts recognized in accumulated other comprehensive loss consist of:
Net loss		17,900			14,028
Total	$	17,900		$	14,028

Other Changes in Plan Assets And Benefit Obligations Recognized in OCI

The following table shows other changes in plan assets and benefit obligations recognized in OCI during the fiscal year ended May 31:

(in thousands)	2015			2014
Net actuarial loss	$	(4,199	)	$	(2,419	)
Amortization of net loss		327			290
Total recognized in other comprehensive loss	$	(3,872	)	$	(2,129	)
Total recognized in net periodic benefit cost and other comprehensive loss	$	(3,618	)	$	(1,881	)

Plan Assets for Defined Benefit Plan

Plan assets for the defined benefit plan consisted principally of the following as of the respective measurement dates:

	May 31, 2015			May 31, 2014
Asset category
Equity securities		53	%		52	%
Debt securities		41	%		44	%
Other		6	%		4	%
Total		100	%		100	%

Estimated Future Benefits Expected to be Paid

The following estimated future benefits, which reflect expected future service, as appropriate, are expected to be paid during the fiscal years noted:

(in thousands)
2016	$	799
2017	$	872
2018	$	958
2019	$	1,080
2020	$	1,183
2021-2025	$	7,896

Fair Value, Measurements, Recurring

Plan Assets for Defined Benefit Plan

The following table sets forth, by level within the fair value hierarchy, a summary of the defined benefit plan’s assets measured at fair value on a recurring basis at May 31, 2015:

(in thousands)	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment:
Money Market Funds	$	1,775	$	1,775	$	-	$	-
Bond Funds		11,524		11,524		-		-
Equity Funds		14,860		14,860		-		-
Totals	$	28,160	$	28,160	$	-	$	-

The following table sets forth by level within the fair value hierarchy a summary of the defined benefit plan’s assets measured at fair value on a recurring basis at May 31, 2014:

(in thousands)	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment:
Money Market Funds	$	1,099	$	1,099	$	-	$	-
Bond Funds		11,570		11,570		-		-
Equity Funds		13,801		13,801		-		-
Totals	$	26,470	$	26,470	$	-	$	-

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Financial Results of Three Largest Affiliated Companies (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Investments in and Advances to Affiliates [Line Items]
Net sales	$ 1,510,180	$ 1,492,802	$ 1,753,734
Gross margin	302,006	312,620	332,849
Operating income	193,531	213,932	230,924
Depreciation and amortization	35,662	36,958	40,712
Interest expense	8,695	9,222	8,894
Income tax expense	10,488	9,854	6,856
Net earnings	178,102	196,131	216,002
WAVE
Investments in and Advances to Affiliates [Line Items]
Net sales	382,451	382,821	370,702
Gross margin	181,102	177,935	167,924
Operating income	147,603	144,167	137,202
Depreciation and amortization	4,150	4,916	3,919
Interest expense	6,412	6,464	6,280
Income tax expense	2,539	3,606	2,451
Net earnings	138,670	134,019	128,614
ClarkDietrich
Investments in and Advances to Affiliates [Line Items]
Net sales	576,171	549,267	547,971
Gross margin	65,530	73,803	75,580
Operating income	10,436	27,918	35,024
Depreciation and amortization	16,638	16,253	18,173
Interest expense	138	103	3
Net earnings	11,799	27,837	35,005
TWB
Investments in and Advances to Affiliates [Line Items]
Net sales		54,003	344,065
Gross margin		6,109	41,116
Operating income		4,273	28,241
Depreciation and amortization		880	5,123
Income tax expense		478	1,218
Net earnings		4,023	27,931
Other Affiliates
Investments in and Advances to Affiliates [Line Items]
Net sales	551,558	506,711	490,996
Gross margin	55,374	54,773	48,229
Operating income	35,492	37,574	30,457
Depreciation and amortization	14,874	14,909	13,497
Interest expense	2,145	2,655	2,611
Income tax expense	7,949	5,770	3,187
Net earnings	$ 27,633	$ 30,252	$ 24,452

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Non-Qualified Stock Options Granted (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	97	130	1,034
Weighted average exercise price, per share	$ 42.95	$ 32.21	$ 20.83
Weighted average grant date fair value, per share	$ 17.96	$ 12.92	$ 7.71
Pre-tax stock-based compensation	$ 1,553	$ 1,539	$ 7,165

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Consolidated Balance Sheets - Entity [Domain] - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Current assets:
Cash and cash equivalents	$ 31,067	$ 190,079
Receivables, less allowances of $3,085 and $3,043 at May 31, 2015 and 2014, respectively	474,292	493,127
Inventories:
Raw materials	181,975	213,173
Work in process	107,069	105,872
Finished products	85,931	90,957
Total inventories	374,975	410,002
Income taxes receivable	12,119	5,438
Assets held for sale	23,412	32,235
Deferred income taxes	22,034	24,272
Prepaid expenses and other current assets	54,294	43,769
Total current assets	992,193	1,198,922
Investments in unconsolidated affiliates	196,776	179,113
Goodwill	238,999	251,093
Other intangible assets, net of accumulated amortization of $47,547 and $35,506 at May 31, 2015 and 2014, respectively	119,117	145,993
Other assets	24,867	22,399
Property, plant and equipment:
Land	16,017	15,260
Buildings and improvements	218,182	213,848
Machinery and equipment	872,986	848,889
Construction in progress	40,753	32,135
Total property, plant and equipment	1,147,938	1,110,132
Less accumulated depreciation	634,748	611,271
Total property, plant and equipment, net	513,190	498,861
Total assets	2,085,142	2,296,381
Current liabilities:
Accounts payable	294,129	333,744
Short-term borrowings	90,550	10,362
Accrued compensation, contributions to employee benefit plans and related taxes	66,252	78,514
Dividends payable	12,862	11,044
Other accrued items	56,913	49,873
Income taxes payable	2,845	4,953
Current maturities of long-term debt	841	101,173
Total current liabilities	524,392	589,663
Other liabilities	58,269	76,426
Distributions in excess of investment in unconsolidated affiliate	61,585	59,287
Long-term debt	579,352	554,790
Deferred income taxes	21,495	71,333
Total liabilities	$ 1,245,093	$ 1,351,499
Shareholders' equity - controlling interest:
Preferred shares, without par value; authorized - 1,000,000 shares; issued and outstanding - none
Common shares, without par value; authorized - 150,000,000 shares; issued and outstanding, 2015 - 64,141,478 shares, 2014 - 67,408,484 shares	$ 0	$ 0
Additional paid-in capital	289,078	262,610
Accumulated other comprehensive loss, net of taxes of $16,909 and $8,043 at May 31, 2015 and 2014, respectively	(50,704)	(3,581)
Retained earnings	510,738	591,783
Total shareholders' equity - controlling interest	749,112	850,812
Noncontrolling interests	90,937	94,070
Total equity	840,049	944,882
Total liabilities and equity	$ 2,085,142	$ 2,296,381

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Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

May. 31, 2015

Schedule of Fair Value of Derivative Instruments

The following table summarizes the fair value of our derivative instruments and the respective line in which they were recorded in the consolidated balance sheet at May 31, 2015:

	Asset Derivatives				Liability Derivatives
(in thousands)	Balance Sheet Location		Fair Value		Balance  Sheet Location		Fair Value
Derivatives designated as hedging instruments:
Commodity contracts		Receivables	$	-		Accounts payable	$	17,241
		Other assets		-		Other liabilities		592
				-				17,833
Interest rate contracts		Receivables		-		Accounts payable		81
		Other assets		-		Other liabilities		113
				-				194
Foreign exchange contracts		Receivables		75		Accounts payable
Totals			$	75			$	18,027
Derivatives not designated as hedging instruments:
Commodity contracts		Receivables	$	96		Accounts payable	$	4,104
		Other assets		-		Other liabilities		-
Totals			$	96			$	4,104
Total Derivative Instruments			$	171			$	22,131

                            The following table summarizes the fair value of our derivative instruments and the respective line in which they were recorded in the consolidated balance sheet at May 31, 2014:

	Asset Derivatives				Liability Derivatives
(in thousands)	Balance Sheet Location		Fair Value		Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments:
Interest rate contracts		Receivables	$	-		Accounts payable	$	4,180
		Other assets		-		Other liabilities		-
				-				4,180
Commodity contracts		Receivables		456		Accounts payable		-
				456				-
Totals			$	456			$	4,180
Derivatives not designated as hedging instruments:
Commodity contracts		Receivables	$	796		Accounts payable	$	295
				796				295
Foreign exchange contracts		Receivables		32		Accounts payable		-
				32				-
Totals			$	828			$	295
Total Derivative Instruments			$	1,284			$	4,475

Schedule of Derivatives Designated as Cash Flow Hedging Instruments

The following table summarizes the gain (loss) recognized in OCI and the gain (loss) reclassified from accumulated OCI into earnings for derivative instruments designated as cash flow hedges during fiscal 2015 and fiscal 2014:

(in thousands)	Income (Loss) Recognized in OCI (Effective Portion)			Location of Income (Loss) Reclassified from Accumulated OCI (Effective Portion)	Income (Loss) Reclassified from Accumulated OCI (Effective Portion)			Location of Income (Loss) (Ineffective Portion) Excluded from Effectiveness Testing	Income (Loss) (Ineffective Portion) Excluded from Effectiveness Testing
For the fiscal year ended
May 31, 2015:
Interest rate contracts	$	(167	)	Interest expense	$	(2,538	)	Interest expense	$	-
Commodity contracts		(29,336	)	Cost of goods sold		(8,364	)	Cost of goods sold		-
Foreign currency contracts		851				855
Totals	$	(28,652	)		$	(10,047	)		$	-
For the fiscal year ended
May 31, 2014:
Interest rate contracts	$	(3,351	)	Interest expense	$	(4,586	)	Interest expense	$	-
Commodity contracts		(2,602	)	Cost of goods sold		(4,915	)	Cost of goods sold		-
Totals	$	(5,953	)		$	(9,501	)		$	-

Schedule of Gain (Loss) Recognized in Earnings for Economic (Non-Designated) Derivative Financial Instruments

The following table summarizes the gain (loss) recognized in earnings for economic (non-designated) derivative financial instruments during fiscal 2015 and fiscal 2014:

		Income (Loss) Recognized in Earnings
	Location of Income (Loss) Recognized in Earnings	Fiscal Year Ended May 31,
(in thousands)		2015			2014
Commodity contracts	Cost of goods sold	$	(15,432	)	$	(1,304	)
Foreign exchange contracts	Miscellaneous income (expense)		-			27
Total		$	(15,432	)	$	(1,277	)

Cash Flow Hedges

Schedule of Summary of Derivative Hedges

The following table summarizes our cash flow hedges outstanding at May 31, 2015:

(in thousands)	Notional Amount		Maturity Date
Commodity contracts	$	102,129		June 2015 – December 2016
Interest rate contracts		16,809		September 2019
Foreign currency contracts		570		June 2015

Derivatives Not Designated As Hedging Instruments

Schedule of Summary of Derivative Hedges

The following table summarizes our economic (non-designated) derivative instruments outstanding at May 31, 2015:

(in thousands)	Notional Amount		Maturity Date(s)
Commodity contracts	$	33,564		June 2015 - November 2016

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Computation of Basic and Diluted Earnings (Loss) per Share Attributable to Controlling Interest (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May. 31, 2015	May. 31, 2014	May. 31, 2013
Numerator (basic & diluted):
Net earnings attributable to controlling interest - income available to common shareholders	$ 28,865	$ (25,710)	$ 29,462	$ 44,168	$ 33,163	$ 40,603	$ 22,977	$ 54,557	$ 76,785	$ 151,300	$ 136,442
Denominator:
Denominator for basic earnings per share attributable to controlling interest - weighted average common shares									66,309	68,944	69,301
Effect of dilutive securities									2,174	2,720	2,013
Denominator for diluted earnings per share attributable to controlling interest - adjusted weighted average common shares									68,483	71,664	71,314
Basic earnings per share attributable to controlling interest	$ 0.45	$ (0.39)	$ 0.44	$ 0.65	$ 0.49	$ 0.59	$ 0.33	$ 0.78	$ 1.16	$ 2.19	$ 1.97
Diluted earnings per share attributable to controlling interest	$ 0.44	$ (0.39)	$ 0.43	$ 0.63	$ 0.47	$ 0.57	$ 0.32	$ 0.76	$ 1.12	$ 2.11	$ 1.91

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Fair Value Measurements - Additional Information (Detail) - USD ($)	May. 31, 2015	May. 31, 2014
Fair Value Measurement [Line Items]
Long-term debt at fair value including current maturities	$ 610,028,000	$ 674,488,000
Long-term debt at carrying amount including current maturities	$ 580,193,000	$ 655,963,000

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Consolidated Statements of Equity - USD ($) $ in Thousands	Total	PSI Energy Solutions, LLC	DHybrid Systems Llc	Common Shares	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss), Net of Tax	Retained Earnings	Total	Noncontrolling Interest	Noncontrolling Interest PSI Energy Solutions, LLC	Noncontrolling Interest DHybrid Systems Llc
Balance at May. 31, 2012	$ 747,437				$ 192,338	$ (20,387)	$ 525,223	$ 697,174	$ 50,263
Balance (in shares) at May. 31, 2012				67,906,369
Net earnings	136,835						136,442	136,442	393
Other comprehensive income (loss)	8,364					8,351		8,351	13
Common shares issued, net of withholding tax (in shares)				2,771,042
Common shares issued, net of withholding tax	37,914				37,914			37,914
Stock-based compensation	17,829				17,829			17,829
Purchases and retirement of common shares (in shares)				(925,000)
Purchases and retirement of common shares	(30,417)				(3,217)		(27,200)	(30,417)
Payments to noncontrolling interests	(9,254)								(9,254)
Cash dividends declared ($0.52 per share in 2013, $0.60 per share in 2014 and $0.72 per share in 2015)	(36,471)						(36,471)	(36,471)
Balance at May. 31, 2013	872,237				244,864	(12,036)	597,994	830,822	41,415
Balance (in shares) at May. 31, 2013				69,752,411
Net earnings	160,152						151,300	151,300	8,852
Other comprehensive income (loss)	9,083					8,455		8,455	628
Acquisitions		$ 84,144								$ 84,144
Common shares issued, net of withholding tax (in shares)				1,036,573
Common shares issued, net of withholding tax	4,618				4,618			4,618
Stock-based compensation	$ 25,651				25,651			25,651
Purchases and retirement of common shares (in shares)	(3,380,500)			(3,380,500)
Purchases and retirement of common shares	$ (128,218)				(12,523)		(115,695)	(128,218)
Payments to noncontrolling interests	(40,969)								(40,969)
Cash dividends declared ($0.52 per share in 2013, $0.60 per share in 2014 and $0.72 per share in 2015)	(41,816)						(41,816)	(41,816)
Balance at May. 31, 2014	944,882				262,610	(3,581)	591,783	850,812	94,070
Balance (in shares) at May. 31, 2014				67,408,484
Net earnings	87,256						76,785	76,785	10,471
Other comprehensive income (loss)	(49,620)					(47,123)		(47,123)	(2,497)
Acquisitions			$ 4,082								$ 4,082
Common shares issued, net of withholding tax (in shares)				909,181
Common shares issued, net of withholding tax	2,910				2,910			2,910
Theoretical common shares in NQ plans	14,560				14,560			14,560
Stock-based compensation	$ 26,837				26,837			26,837
Purchases and retirement of common shares (in shares)	(4,176,187)			(4,176,187)
Purchases and retirement of common shares	$ (127,360)				(17,839)		(109,521)	(127,360)
Payments to noncontrolling interests	(15,189)								(15,189)
Cash dividends declared ($0.52 per share in 2013, $0.60 per share in 2014 and $0.72 per share in 2015)	(48,309)						(48,309)	(48,309)
Balance at May. 31, 2015	$ 840,049				$ 289,078	$ (50,704)	$ 510,738	$ 749,112	$ 90,937
Balance (in shares) at May. 31, 2015				64,141,478

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Deferred Tax Assets and Liabilities (Detail) - USD ($)	May. 31, 2015	May. 31, 2014
Deferred tax assets
Accounts receivable	$ 1,895,000	$ 2,400,000
Inventories	8,051,000	7,210,000
Accrued expenses	33,678,000	40,873,000
Net operating and capital loss carry forwards	14,326,000	19,302,000
Tax credit carry forwards	3,688,000	203,000
Stock-based compensation	20,434,000	12,573,000
Derivative contracts	9,177,000	1,838,000
Other	247,000	541,000
Total deferred tax assets	91,496,000	84,940,000
Valuation allowance for deferred tax assets	(13,036,000)	(21,701,000)
Net deferred tax assets	78,460,000	63,239,000
Deferred tax liabilities
Property, plant and equipment	(39,433,000)	(67,472,000)
Undistributed earnings of unconsolidated affiliates	(35,165,000)	(39,429,000)
Other	(2,150,000)	(3,395,000)
Total deferred tax liabilities	(76,748,000)	(110,296,000)
Net deferred tax asset (liability)	$ 1,712,000	$ (47,057,000)

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Restructuring and Other Expense (Income) - Additional Information (Detail) - USD ($)				1 Months Ended		3 Months Ended		12 Months Ended
	May. 24, 2015	Dec. 10, 2013	Nov. 12, 2013	Jun. 30, 2013	Oct. 31, 2012	May. 31, 2014	May. 31, 2013	May. 31, 2015	May. 31, 2014
Restructuring Cost and Reserve [Line Items]
Amount of goodwill included in loss on sale of business								$ 1,891,000
Accrued severance cost	$ 2,221,000
Gain/loss on sale of assets								2,338,000	$ (10,589,000)
Aluminum High Pressure Cylinder Business
Restructuring Cost and Reserve [Line Items]
Cash proceeds from sale of business								8,415,000
Gain (loss) on sale of business								(2,670,000)
Amount of goodwill included in loss on sale of business								1,891,000
Accrued severance cost								664,000
ACT Business
Restructuring Cost and Reserve [Line Items]
Cash proceeds from sale of business								2,622,000
Gain (loss) on sale of business								332,000
Military Construction Business
Restructuring Cost and Reserve [Line Items]
Accrued severance cost								366,000
Midrise Construction Business
Restructuring Cost and Reserve [Line Items]
Accrued severance cost						$ 564,000
Baltimore Steel Facility
Restructuring Cost and Reserve [Line Items]
Accrued severance cost		$ 1,380,000
ITS
Restructuring Cost and Reserve [Line Items]
Gain/loss on sale of assets				$ 4,762,000
Cash proceeds from sale of assets				$ 7,457,000
Metal Framing
Restructuring Cost and Reserve [Line Items]
Facility exit and other costs incurred								413,000	924,000
Gain/loss on sale of assets									(112,000)
Pressure Cylinders
Restructuring Cost and Reserve [Line Items]
Facility exit and other costs incurred								853,000	377,000
Amount of goodwill included in loss on sale of business								$ 1,891,000
Accrued severance cost							$ 2,488,000		578,000
Gain/loss on sale of assets					$ 50,000
Pressure Cylinders | North America
Restructuring Cost and Reserve [Line Items]
Facility exit and other costs incurred			$ 524,000
Accrued severance cost			3,714,000
Gain/loss on sale of assets			$ 5,939,000
Commercial Stairs
Restructuring Cost and Reserve [Line Items]
Facility exit and other costs incurred									$ 652,000

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Financial Information for Reportable Segments (Detail) - Entity [Domain] - USD ($) $ in Thousands	1 Months Ended	3 Months Ended															12 Months Ended
	Oct. 31, 2012	May. 31, 2015		Feb. 28, 2015		Nov. 30, 2014		Aug. 31, 2014		May. 31, 2014		Feb. 28, 2014	Nov. 30, 2013		Aug. 31, 2013		May. 31, 2015	May. 31, 2014	May. 31, 2013
Segment Reporting Information [Line Items]
Net sales		$ 846,023		$ 804,785		$ 871,012		$ 862,414		$ 891,005		$ 773,230	$ 769,900		$ 692,291		$ 3,384,234	$ 3,126,426	$ 2,612,244
Operating income (loss)																	60,557	135,753	129,142
Depreciation and amortization																	85,089	79,730	66,469
Impairment of goodwill and long-lived assets		2,344	[1]	$ 81,600	[1]	$ 14,235	[1]	$ 1,950	[1]	22,871	[1]		$ 30,734	[1]	4,641	[1]	100,129	58,246	6,488
Restructuring and other expense (income)																	6,514	(2,912)	3,293
Joint venture transactions																	413	1,036	(604)
Total assets		2,085,142								2,296,381							2,085,142	2,296,381	1,950,857
Total capital expenditures																	96,255	71,338	44,588
Steel Processing
Segment Reporting Information [Line Items]
Net sales																	2,145,744	1,936,073	1,462,630
Operating income (loss)																	108,707	119,025	68,156
Depreciation and amortization																	34,526	32,882	25,918
Impairment of goodwill and long-lived assets																	3,050	7,141
Restructuring and other expense (income)																	72	(3,382)
Total assets		829,116								850,748							829,116	850,748	610,464
Total capital expenditures																	34,546	16,682	8,371
Pressure Cylinders
Segment Reporting Information [Line Items]
Net sales																	1,001,402	928,396	859,264
Operating income (loss)																	58,113	55,004	66,367
Depreciation and amortization																	34,953	31,984	26,919
Impairment of goodwill and long-lived assets	$ 1,520														$ 1,570		11,911	32,005	6,488
Restructuring and other expense (income)																	6,408	(745)	2,665
Total assets		804,799								818,720							804,799	818,720	742,686
Total capital expenditures																	35,872	32,364	13,368
Engineered Cabs
Segment Reporting Information [Line Items]
Net sales																	192,953	200,528	226,002
Operating income (loss)																	(97,260)	(26,516)	4,158
Depreciation and amortization																	10,184	10,027	9,096
Impairment of goodwill and long-lived assets																	83,989	19,100
Restructuring and other expense (income)																	(332)
Total assets		94,506								181,251							94,506	181,251	201,048
Total capital expenditures																	8,951	10,351	6,265
Other
Segment Reporting Information [Line Items]
Net sales																	44,135	61,429	64,348
Operating income (loss)																	(9,003)	(11,760)	(9,539)
Depreciation and amortization																	5,426	4,837	4,536
Impairment of goodwill and long-lived assets																	1,179
Restructuring and other expense (income)																	366	1,215	628
Joint venture transactions																	413	1,036	(604)
Total assets		$ 356,721								$ 445,662							356,721	445,662	396,659
Total capital expenditures																	$ 16,886	$ 11,941	$ 16,584

[1] For additional information regarding the Company's impairment charges, refer to "Note C - Goodwill and Other Long-Lived Assets."

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Restructuring and Other Expense (Income) (Tables)

12 Months Ended

May. 31, 2015

Schedule of Progression of Liabilities Associated with Restructuring Activities, Combined with Reconciliation to Restructuring and Other Expense (Income)

A progression of the liabilities associated with our restructuring activities, combined with a reconciliation to the restructuring and other expense (income) financial statement caption in our consolidated statement of earnings for fiscal 2015, is summarized below:

(in thousands)	Beginning Balance		Expense			Payments			Adjustments		Ending Balance
Early retirement and severance	$	6,495	$	3,323		$	(7,694	)	$	46	$	2,170
Facility exit and other costs		534		1,266			(1,568	)		139		371
	$	7,029		4,589		$	(9,262	)	$	185	$	2,541
Net loss on sale of assets				2,338
Less: joint venture transactions				(413	)
Restructuring and other expense			$	6,514

A progression of the liabilities associated with our restructuring activities, combined with a reconciliation to the restructuring and other expense (income) financial statement caption in our consolidated statement of earnings for fiscal 2014, is summarized as follows:

(in thousands)	Beginning Balance		Expense			Payments			Adjustments			Ending Balance
Early retirement and severance	$	5,029	$	6,236		$	(4,703	)	$	(67	)	$	6,495
Facility exit and other costs		1,200		2,477			(3,021	)		(122	)		534
	$	6,229		8,713		$	(7,724	)	$	(189	)	$	7,029
Net gain on sale of assets				(10,589	)
Less: joint venture transactions				(1,036	)
Restructuring and other income			$	(2,912	)

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Debt and Receivables Securitization - Additional Information (Detail) - USD ($)								1 Months Ended	3 Months Ended	12 Months Ended
	Apr. 23, 2015	Oct. 15, 2014	Sep. 26, 2014	Apr. 15, 2014	Aug. 10, 2012	Apr. 27, 2012	Apr. 13, 2010	May. 31, 2015	Feb. 28, 2015	May. 31, 2015	May. 31, 2014	May. 31, 2013
Debt And Receivables Securitization [Line Items]
Borrowings outstanding								$ 24,915,000		$ 24,915,000
Short-term borrowings								$ 90,550,000		$ 90,550,000	$ 10,362,000
Unsecured Senior Notes, Four Point Five Five Percent, Due April Fifteen Twenty Twenty Six
Debt And Receivables Securitization [Line Items]
Principal amount				$ 250,000,000
Debt, maturity date				Apr. 15, 2026						Apr. 15, 2026	Apr. 15, 2026
Debt, interest rate				4.55%				4.55%		4.55%	4.55%
Percentage of principal amount debt instrument was sold to the public				99.789%
Yield to maturity				4.573%
Debt discount				$ 528,000				$ 476,000		$ 476,000
Debt issuance cost				2,256,000
Settlement of hedge interest				$ 3,081,000
Unamortized portion of debt issuance costs								$ 1,881,000		$ 1,881,000
4.60% senior notes due August 10, 2024
Debt And Receivables Securitization [Line Items]
Principal amount					$ 150,000,000
Debt, maturity date					Aug. 10, 2024					Aug. 10, 2024	Aug. 10, 2024
Debt, interest rate					4.60%			4.60%		4.60%	4.60%
6.50% Unsecured Senior Notes due April 15, 2020
Debt And Receivables Securitization [Line Items]
Principal amount							$ 150,000,000
Debt, maturity date							Apr. 15, 2020
Debt, interest rate							6.50%
Yield to maturity							6.515%
Debt discount							$ 165,000	$ 80,000		$ 80,000
Debt issuance cost							1,535,000
Settlement of hedge interest							$ 1,358,000
Unamortized portion of debt issuance costs								582,000		582,000
Percentage of principal amount debt instrument was sold to the public							99.89%
Term Loan maturing May 1, 2019
Debt And Receivables Securitization [Line Items]
Maximum borrowing capacity						$ 5,880,000
Borrowings outstanding								3,416,000		$ 3,416,000
Debt, maturity date										May 01, 2019
Debt, interest rate						2.49%
Term loan credit facility, term						7 years
Debt instrument required monthly payments						$ 76,350
Securities Sold under Agreements to Repurchase
Debt And Receivables Securitization [Line Items]
Maturity date									2018-01
Maximum borrowing capacity								100,000,000		$ 100,000,000
Number of days past due trade accounts receivables are ineligible for securitization										90 days
Borrowings outstanding								$ 60,000,000		$ 60,000,000
Facility fee										$ 723,000	$ 652,000	$ 983,000
Interest Rate Swap
Debt And Receivables Securitization [Line Items]
Borrowings outstanding		$ 16,809,000
Interest rate swap, interest rate		2.015%
Interest rate swap, start date		Dec. 26, 2014
Interest rate swap, maturity date		Sep. 26, 2019
Unsecured Revolving Credit Facility
Debt And Receivables Securitization [Line Items]
Line of credit, variable rate								1.39%		1.39%
Unsecured Revolving Credit Facility | Amended Credit Facility
Debt And Receivables Securitization [Line Items]
Maturity date										2020-04
Maximum borrowing capacity	$ 500,000,000
Credit facility, increased capacity under the credit agreement	$ 75,000,000
Credit facility, extension in maturity period	3 years
Unsecured Revolving Credit Facility | Maximum
Debt And Receivables Securitization [Line Items]
Debt maturity period	1 year
Worthington Aritas
Debt And Receivables Securitization [Line Items]
Maximum borrowing capacity			$ 28,028,000
Borrowings outstanding								$ 27,013,000		$ 27,013,000
Line of credit, variable rate								1.519%		1.519%
Term loan credit facility, term			5 years
Worthington Nitin Cylinders
Debt And Receivables Securitization [Line Items]
Maturity date								2014-11
Maximum borrowing capacity								$ 9,500,000		$ 9,500,000
Line of credit, variable rate								15.25%		15.25%
Short-term borrowings								$ 5,635,000		$ 5,635,000

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Segment Data

12 Months Ended

May. 31, 2015

Segment Data

Note N – Segment Data

Our operations are managed principally on a products and services basis and include three reportable business segments: Steel Processing, Pressure Cylinders and Engineered Cabs, each of which is comprised of a similar group of products and services. Factors used to identify reportable business segments include the nature of the products and services provided by each business, the management reporting structure, similarity of economic characteristics and certain quantitative measures, as prescribed by authoritative guidance. A discussion of each of our reportable business segments is outlined below.

During the first quarter of fiscal 2015, we made certain organizational changes impacting the internal reporting and management structure of our Steel Packaging operating segment. As a result of these organizational changes, management responsibilities and internal reporting were realigned under our Steel Processing operating segment. Segment information reported in previous periods has been restated to conform to this new presentation.

Steel Processing:    The Steel Processing operating segment consists of the Worthington Steel business unit, and includes Precision Specialty Metals, Inc., a specialty stainless processor located in Los Angeles, California, and Worthington Steelpac Systems, LLC (“SteelPac”), which designs and manufactures reusable steel custom platforms, racks and pallets for supporting, protecting and handling products throughout the shipping process. Worthington Steel also includes our consolidated joint ventures: Spartan and TWB. Spartan operates a cold-rolled hot dipped galvanizing line and TWB operates a laser welded blanking business. Worthington Steel is an intermediate processor of flat-rolled steel. This operating segment’s processing capabilities include pickling; slitting; oscillate slitting; cold reducing; hot-dipped galvanizing; hydrogen annealing; cutting-to-length; temper rolling; tension leveling; edging; non-metallic coating, including dry lubrication, acrylic and paint; and configured blanking. Worthington Steel sells to customers principally in the automotive, construction, lawn and garden, hardware, furniture, office equipment, leisure and recreation, appliance, agricultural, HVAC, container and aerospace markets. Worthington Steel also toll processes steel for steel mills, large end-users, service centers and other processors. Toll processing is different from typical steel processing in that the mill, end-user or other party retains title to the steel and has the responsibility for selling the end product.

Pressure Cylinders:    The Pressure Cylinders operating segment consists of the Worthington Cylinders business unit and three consolidated joint ventures: India-based Worthington Nitin Cylinders, a manufacturer of high-pressure, seamless steel cylinders for CNG and other industrial gas storage applications; Worthington Aritas, one of Europe’s leading cryogenic technology companies for LNG and other gas storage applications; and dHybrid, which manufactures CNG fuel systems for large trucks out of a facility in Salt Lake City, Utah. The percentage of consolidated net sales generated by Pressure Cylinders was approximately 30% in each of fiscal 2015, fiscal 2014 and fiscal 2013.

Our Pressure Cylinders operating segment manufactures and sells filled and unfilled pressure cylinders, tanks, hand torches, and oil and gas equipment along with various accessories and related products for diversified end-use market applications. The following is a description of these markets:

• Industrial Products:    This market sector includes high pressure and acetylene cylinders for industrial gases, refrigerant and certain propane gas cylinders, hand torch cylinders and joining products such as solder and brazing rods and other specialty products. Cylinders in these markets are generally sold to gas producers, cylinder exchangers and industrial distributors. Industrial cylinders hold fuel for uses such as cutting, brazing and soldering, semiconductor production, and beverage delivery. Refrigerant gas cylinders are used to hold refrigerant gases for commercial, residential and automotive air conditioning and refrigeration systems. LPG cylinders hold fuel for barbeque grills, recreational vehicle equipment, residential and light commercial heating systems, industrial forklifts and commercial/residential cooking (the latter, generally outside North America). Specialty products include a variety of fire suppression and chemical tanks.

• Consumer Products:    This market sector includes propane-filled cylinders for torches, camping stoves and other applications, hand held torches and accessories, and Balloon Time^® helium-filled balloon kits. These products are sold primarily to mass merchandisers and distributors.

• Alternative Fuels:    This market sector includes composite and steel cylinders for containment of CNG and hydrogen for automobiles, buses, and light-duty trucks, propane/autogas cylinders for automobiles and light- and medium-duty trucks, as well as CNG fuel systems for buses, refuse and heavy-duty trucks.

• Oil and Gas Equipment:    This market sector includes steel and fiberglass storage tanks, separation equipment, controls and other products primarily used in the energy markets, including oil and gas and nuclear. This sector also includes hoists and other marine products which are used principally in shipyard lift systems. This sector also leverages its manufacturing competencies to produce pressure vessels, atmospheric tanks, controls and various custom machined components for other industrial and agricultural end markets. This market sector was formed in fiscal 2013 as a result of the acquisition of Westerman, Inc. on September 17, 2012, and also include the assets acquired from Palmer Mfg. & Tank, Inc, Steffes Corporation and MEF.

• Cryogenics:    This market sector includes cryogenic equipment systems, and service for the transportation, storage and use of liquefied gases such as LNG and industrial gases such as liquid nitrogen, oxygen, argon, and hydrogen. Key end markets include LNG storage and transportation, LNG onboard fueling for marine applications, and storage and transportation of industrial gases for manufacturing and healthcare. Pressure Cylinders entered this sector through new product development of industrial gas cryogenic cylinders, its joint venture with Aritas in Istanbul, Turkey which focuses on highly engineered tanks and systems, and the acquisition of cryogenic trailer manufacturer, JRE, based in Boston.

Engineered Cabs:    This operating segment consists of the Worthington Industries Engineered Cabs business unit, a non-captive designer and manufacturer of high-quality, custom-engineered open and enclosed cabs and operator stations and custom fabrications for heavy mobile equipment used primarily in the agricultural, construction, forestry, mining, military, and various other industries. Engineered Cabs’ product design, engineering support and broad manufacturing capabilities enable it to produce cabs and structures used in products ranging from small utility equipment to the large earthmovers.

Other:    The Other category includes the Construction Services and Worthington Energy Innovations operating segments, as they do not meet the quantitative thresholds for separate disclosure. Certain income and expense items not allocated to our operating segments are also included in Other.

Construction Services:    The Construction Services operating segment consists of the Military Construction business unit, and, for periods prior to its closure in May 2014, the Worthington Construction Group business unit. The Company is in the process of winding down its Military Construction business unit, whose operations involve the supply and construction of single family housing, with a focus on military housing.

Worthington Energy Innovations:    WEI is a 75%-owned consolidated joint venture with Tom E. Kiser (20%) and Stonehenge Structured Finance Partners, LLC (5%) (together referred to as “WEI Partners”), with offices in Fremont and Columbus, Ohio. WEI is an Energy Services Company that develops cost-effective energy solutions for entities in North America and Asia. Once these solutions are implemented, WEI monitors, verifies and guarantees these energy saving solutions. WEI’s financial results are reported within the Other category for segment reporting purposes.

The accounting policies of the reportable business segments and other operating segments are described in “Note A – Summary of Significant Accounting Policies.” We evaluate operating segment performance based on operating income (loss). Inter-segment sales are not material.

The following table presents summarized financial information for our reportable business segments as of, and for the fiscal years ended, May 31:

(in thousands)	2015			2014			2013
Net sales
Steel Processing	$	2,145,744		$	1,936,073		$	1,462,630
Pressure Cylinders		1,001,402			928,396			859,264
Engineered Cabs		192,953			200,528			226,002
Other		44,135			61,429			64,348
Total net sales	$	3,384,234		$	3,126,426		$	2,612,244
Operating income (loss)
Steel Processing	$	108,707		$	119,025		$	68,156
Pressure Cylinders		58,113			55,004			66,367
Engineered Cabs		(97,260	)		(26,516	)		4,158
Other		(9,003	)		(11,760	)		(9,539	)
Total operating income	$	60,557		$	135,753		$	129,142
Depreciation and amortization
Steel Processing	$	34,526		$	32,882		$	25,918
Pressure Cylinders		34,953			31,984			26,919
Engineered Cabs		10,184			10,027			9,096
Other		5,426			4,837			4,536
Total depreciation and amortization	$	85,089		$	79,730		$	66,469
Impairment of goodwill and long-lived assets
Steel Processing	$	3,050		$	7,141		$	-
Pressure Cylinders		11,911			32,005			6,488
Engineered Cabs		83,989			19,100			-
Other		1,179			-			-
Total impairment of goodwill and long-lived assets	$	100,129		$	58,246		$	6,488
Restructuring and other expense (income)
Steel Processing	$	72		$	(3,382	)	$	-
Pressure Cylinders		6,408			(745	)		2,665
Engineered Cabs		(332	)		-			-
Other		366			1,215			628
Total restructuring and other expense (income)	$	6,514		$	(2,912	)	$	3,293
Joint venture transactions
Steel Processing	$	-		$	-		$	-
Pressure Cylinders		-			-			-
Engineered Cabs		-			-			-
Other		413			1,036			(604	)
Total joint venture transactions	$	413		$	1,036		$	(604	)
Total assets
Steel Processing	$	829,116		$	850,748		$	610,464
Pressure Cylinders		804,799			818,720			742,686
Engineered Cabs		94,506			181,251			201,048
Other		356,721			445,662			396,659
Total assets	$	2,085,142		$	2,296,381		$	1,950,857
Capital expenditures
Steel Processing	$	34,546			16,682		$	8,371
Pressure Cylinders		35,872			32,364			13,368
Engineered Cabs		8,951			10,351			6,265
Other		16,886			11,941			16,584
Total capital expenditures	$	96,255		$	71,338		$	44,588

The following table presents net sales by geographic region for the years ended May 31:

(in thousands)	2015		2014		2013
United States	$	3,175,972	$	2,917,484	$	2,418,307
Europe		125,778		136,513		159,562
Mexico		56,687		51,430		-
Canada		6,464		10,324		21,257
Other		19,333		10,675		13,118
Total	$	3,384,234	$	3,126,426	$	2,612,244

The following table presents property, plant and equipment, net, by geographic region as of May 31:

(in thousands)	2015		2014
United States	$	439,296	$	429,068
Europe		50,520		56,884
Mexico		5,030		6,314
Canada		4,284		-
Other		14,060		6,595
Total	$	513,190	$	498,861

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Contingent Liabilities and Commitments (Tables)

12 Months Ended

May. 31, 2015

Total Proceeds Received related to Insurance Claim since Date of Loss

Total proceeds received related to insurance claims since the date of loss have been as follows:

(in thousands)
Property and equipment	$	6,892
Business interruption		5,521
Other expenses		1,001
Total insurance proceeds	$	13,414

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Segment Data - Additional Information (Detail) - Segment	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Segment Reporting Information [Line Items]
Number of reportable segments	3
Pressure Cylinders
Segment Reporting Information [Line Items]
Percentage of consolidated net sales	30.00%	30.00%	30.00%
PSI Energy Solutions, LLC | Joint Venture Transactions
Segment Reporting Information [Line Items]
Percent of controlling interest by the Company	75.00%
Professional Supply, Inc. | Joint Venture Transactions
Segment Reporting Information [Line Items]
Percent of ownership interest by noncontrolling owner	20.00%
Stonehenge Structured Finance Partners, LLC | Joint Venture Transactions
Segment Reporting Information [Line Items]
Percent of ownership interest by noncontrolling owner	5.00%

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Derivative Instruments and Hedging Activities

12 Months Ended

May. 31, 2015

Derivative Instruments and Hedging Activities

Note P – Derivative Instruments and Hedging Activities

We utilize derivative financial instruments to manage exposure to certain risks related to our ongoing operations. The primary risks managed through the use of derivative instruments include interest rate risk, currency exchange risk and commodity price risk. While certain of our derivative instruments are designated as hedging instruments, we also enter into derivative instruments that are designed to hedge a risk, but are not designated as hedging instruments and therefore do not qualify for hedge accounting. These derivative instruments are adjusted to current fair value through earnings at the end of each period.

Interest Rate Risk Management – We are exposed to the impact of interest rate changes. Our objective is to manage the impact of interest rate changes on cash flows and the market value of our borrowings. We utilize a mix of debt maturities along with both fixed-rate and variable-rate debt to manage changes in interest rates. In addition, we enter into interest rate swaps to further manage our exposure to interest rate variations related to our borrowings and to lower our overall borrowing costs.

Currency Exchange Risk Management – We conduct business in several major international currencies and are therefore subject to risks associated with changing foreign exchange rates. We enter into various contracts that change in value as foreign exchange rates change to manage this exposure. Such contracts limit exposure to both favorable and unfavorable currency fluctuations. The translation of foreign currencies into United States dollars also subjects us to exposure related to fluctuating exchange rates; however, derivative instruments are not used to manage this risk.

Commodity Price Risk Management – We are exposed to changes in the price of certain commodities, including steel, natural gas, zinc and other raw materials, and our utility requirements. Our objective is to reduce earnings and cash flow volatility associated with forecasted purchases and sales of these commodities to allow management to focus its attention on business operations. Accordingly, we enter into derivative contracts to manage the associated price risk.

We are exposed to counterparty credit risk on all of our derivative instruments. Accordingly, we have established and maintain strict counterparty credit guidelines and enter into derivative instruments only with major financial institutions. We have credit support agreements in place with certain counterparties to limit our credit exposure. These agreements require either party to post cash collateral if its cumulative market position exceeds a predefined liability threshold. At May 31, 2015, we had posted total cash collateral of $2,248,000 to our margin accounts. Amounts posted to the margin accounts accrue interest at market rates and are required to be refunded in the period in which the cumulative market position falls below the required threshold. We do not have significant exposure to any one counterparty and management believes the risk of loss is remote and, in any event, would not be material.

Refer to “Note Q – Fair Value Measurements” for additional information regarding the accounting treatment for our derivative instruments, as well as how fair value is determined.

The following table summarizes the fair value of our derivative instruments and the respective line in which they were recorded in the consolidated balance sheet at May 31, 2015:

	Asset Derivatives				Liability Derivatives
(in thousands)	Balance Sheet Location		Fair Value		Balance  Sheet Location		Fair Value
Derivatives designated as hedging instruments:
Commodity contracts		Receivables	$	-		Accounts payable	$	17,241
		Other assets		-		Other liabilities		592
				-				17,833
Interest rate contracts		Receivables		-		Accounts payable		81
		Other assets		-		Other liabilities		113
				-				194
Foreign exchange contracts		Receivables		75		Accounts payable
Totals			$	75			$	18,027
Derivatives not designated as hedging instruments:
Commodity contracts		Receivables	$	96		Accounts payable	$	4,104
		Other assets		-		Other liabilities		-
Totals			$	96			$	4,104
Total Derivative Instruments			$	171			$	22,131

The amounts in the table above reflect the fair value of the Company’s derivative contracts on a net basis. Had these amounts been recognized on a gross basis, the impact would have been a $500,000 increase in receivables with a corresponding increase in accounts payable.

The following table summarizes the fair value of our derivative instruments and the respective line in which they were recorded in the consolidated balance sheet at May 31, 2014:

	Asset Derivatives				Liability Derivatives
(in thousands)	Balance Sheet Location		Fair Value		Balance Sheet Location		Fair Value
Derivatives designated as hedging instruments:
Interest rate contracts		Receivables	$	-		Accounts payable	$	4,180
		Other assets		-		Other liabilities		-
				-				4,180
Commodity contracts		Receivables		456		Accounts payable		-
				456				-
Totals			$	456			$	4,180
Derivatives not designated as hedging instruments:
Commodity contracts		Receivables	$	796		Accounts payable	$	295
				796				295
Foreign exchange contracts		Receivables		32		Accounts payable		-
				32				-
Totals			$	828			$	295
Total Derivative Instruments			$	1,284			$	4,475

The amounts in the table above reflect the fair value of the Company’s derivative contracts on a net basis. Had these amounts been recognized on a gross basis, the impact would have been a $730,000 increase in receivables with a corresponding increase in accounts payable.

Cash Flow Hedges

We enter into derivative instruments to hedge our exposure to changes in cash flows attributable to interest rate and commodity price fluctuations associated with certain forecasted transactions. These derivative instruments are designated and qualify as cash flow hedges. Accordingly, the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income (“OCI”) and reclassified into earnings in the same line associated with the forecasted transaction and in the same period during which the hedged transaction affects earnings. The ineffective portion of the gain or loss on the derivative instrument is recognized in earnings immediately.

The following table summarizes our cash flow hedges outstanding at May 31, 2015:

(in thousands)	Notional Amount		Maturity Date
Commodity contracts	$	102,129		June 2015 – December 2016
Interest rate contracts		16,809		September 2019
Foreign currency contracts		570		June 2015

The following table summarizes the gain (loss) recognized in OCI and the gain (loss) reclassified from accumulated OCI into earnings for derivative instruments designated as cash flow hedges during fiscal 2015 and fiscal 2014:

(in thousands)	Income (Loss) Recognized in OCI (Effective Portion)			Location of Income (Loss) Reclassified from Accumulated OCI (Effective Portion)	Income (Loss) Reclassified from Accumulated OCI (Effective Portion)			Location of Income (Loss) (Ineffective Portion) Excluded from Effectiveness Testing	Income (Loss) (Ineffective Portion) Excluded from Effectiveness Testing
For the fiscal year ended
May 31, 2015:
Interest rate contracts	$	(167	)	Interest expense	$	(2,538	)	Interest expense	$	-
Commodity contracts		(29,336	)	Cost of goods sold		(8,364	)	Cost of goods sold		-
Foreign currency contracts		851				855
Totals	$	(28,652	)		$	(10,047	)		$	-
For the fiscal year ended
May 31, 2014:
Interest rate contracts	$	(3,351	)	Interest expense	$	(4,586	)	Interest expense	$	-
Commodity contracts		(2,602	)	Cost of goods sold		(4,915	)	Cost of goods sold		-
Totals	$	(5,953	)		$	(9,501	)		$	-

The estimated net amount of the losses in AOCI at May 31, 2015 expected to be reclassified into net earnings within the succeeding twelve months is $12,619,000 (net of tax of $7,518,000). This amount was computed using the fair value of the cash flow hedges at May 31, 2015, and will change before actual reclassification from other comprehensive income to net earnings during fiscal 2016.

Economic (Non-designated) Hedges

We enter into foreign currency contracts to manage our foreign exchange exposure related to inter-company and financing transactions that do not meet the requirements for hedge accounting treatment. We also enter into certain commodity contracts that do not qualify for hedge accounting treatment. Accordingly, these derivative instruments are adjusted to current market value at the end of each period through earnings.

The following table summarizes our economic (non-designated) derivative instruments outstanding at May 31, 2015:

(in thousands)	Notional Amount		Maturity Date(s)
Commodity contracts	$	33,564		June 2015 - November 2016

The following table summarizes the gain (loss) recognized in earnings for economic (non-designated) derivative financial instruments during fiscal 2015 and fiscal 2014:

		Income (Loss) Recognized in Earnings
	Location of Income (Loss) Recognized in Earnings	Fiscal Year Ended May 31,
(in thousands)		2015			2014
Commodity contracts	Cost of goods sold	$	(15,432	)	$	(1,304	)
Foreign exchange contracts	Miscellaneous income (expense)		-			27
Total		$	(15,432	)	$	(1,277	)

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Components of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands		12 Months Ended
		May. 31, 2015	May. 31, 2014	May. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of May 31, 2014		$ (3,581)
Other comprehensive loss before reclassifications		(66,363)
Reclassification adjustments to income	[1]	10,374
Income taxes		8,866	$ (528)	$ (2,178)
Balance as of May 31, 2015		(50,704)	(3,581)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of May 31, 2014		11,015
Other comprehensive loss before reclassifications		(31,732)
Balance as of May 31, 2015		(20,717)	11,015
Pension Liability Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of May 31, 2014		(11,265)
Other comprehensive loss before reclassifications		(5,979)
Reclassification adjustments to income	[1]	327
Income taxes		1,914
Balance as of May 31, 2015		(15,003)	(11,265)
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of May 31, 2014		(3,331)
Other comprehensive loss before reclassifications		(28,652)
Reclassification adjustments to income	[1]	10,047
Income taxes		6,952
Balance as of May 31, 2015		$ (14,984)	$ (3,331)

[1] The statement of earnings classification of amounts reclassified to income for cash flow hedges is disclosed in "Note P - Derivative Instruments and Hedging Activities."

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Schedule of Derivatives Designated as Cash Flow Hedging Instruments (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014
Derivative [Line Items]
Income (Loss) Recognized in OCI (Effective Portion)	$ (28,652)	$ (5,953)
Income (Loss) Reclassified from Accumulated OCI (Effective Portion)	(10,047)	(9,501)
Interest Rate Contracts
Derivative [Line Items]
Income (Loss) Recognized in OCI (Effective Portion)	(167)	(3,351)
Interest Rate Contracts | Interest Expense
Derivative [Line Items]
Income (Loss) Reclassified from Accumulated OCI (Effective Portion)	(2,538)	(4,586)
Commodity Contracts
Derivative [Line Items]
Income (Loss) Recognized in OCI (Effective Portion)	(29,336)	(2,602)
Commodity Contracts | Cost Of Goods Sold
Derivative [Line Items]
Income (Loss) Reclassified from Accumulated OCI (Effective Portion)	(8,364)	$ (4,915)
Foreign Currency Contracts
Derivative [Line Items]
Income (Loss) Recognized in OCI (Effective Portion)	851
Income (Loss) Reclassified from Accumulated OCI (Effective Portion)	$ 855

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Consolidated Statements of Equity (Parenthetical) - $ / shares	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Cash dividend declared, per share	$ 0.72	$ 0.6	$ 0.52

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Receivables, allowances	$ 3,085	$ 3,043
Other intangible assets, accumulated amortization	$ 47,547	$ 35,506
Preferred shares, without par value	$ 0	$ 0
Preferred shares, shares authorized	1,000,000	1,000,000
Preferred shares, shares issued	0	0
Preferred shares, shares outstanding	0	0
Common stock, without par value	$ 0	$ 0
Common shares, authorized	150,000,000	150,000,000
Common shares, shares issued	64,141,478	67,408,484
Common shares, shares outstanding	64,141,478	67,408,484
Accumulated other comprehensive income (loss), taxes	$ 16,909	$ 8,043

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Equity

12 Months Ended

May. 31, 2015

Equity

Note I – Equity

Preferred Shares:    The Worthington Industries, Inc. Amended Articles of Incorporation authorize two classes of preferred shares and their relative voting rights. The Board of Directors of Worthington Industries, Inc. is empowered to determine the issue prices, dividend rates, amounts payable upon liquidation and other terms of the preferred shares when issued. No preferred shares are issued or outstanding.

Common Shares:    On June 29, 2011, the Board of Worthington Industries, Inc. authorized the repurchase of up to 10,000,000 of our outstanding common shares of which none remained available for repurchase at May 31, 2015. During fiscal 2015, 1,722,332 common shares were repurchased under this authorization.

On June 25, 2014, the Board of Worthington Industries, Inc. authorized the repurchase of up to an additional 10,000,000 of our outstanding common shares. During fiscal 2015, an aggregate of 2,453,855 common shares were repurchased under this authorization, leaving 7,546,145 shares available for repurchase as of May 31, 2015.

During fiscal 2015 and fiscal 2014, we paid $127,360,000 and $128,218,000 to repurchase 4,176,187 and 3,380,500 of our common shares, respectively, under these authorizations.

The common shares available for repurchase under these authorizations may be purchased from time to time, with consideration given to the market price of the common shares, the nature of other investment opportunities, cash flows from operations, general economic conditions and other relevant considerations. Repurchases may be made on the open market or through privately negotiated transactions.

On October 1, 2014, the Company amended its non-qualified deferred compensation plan for employees to require that any portion of a participant’s current account credited to the theoretical common share option, which reflects the fair value of the Company’s common shares with dividends reinvested, and any new contributions credited to the theoretical common share option remain credited to the theoretical common share option until distributed. For amounts credited to the theoretical common share option, payouts are required to be made in the form of whole common shares of the Company and cash in lieu of fractional shares. As a result, we account for the deferred compensation obligation credited to the theoretical common share option within equity, which totaled $14,560,000 for fiscal 2015. Prior to October 1, 2014, participant accounts credited to the theoretical common share option were settled in cash and classified as a liability in the Company’s consolidated balance sheet.

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Schedule of Acquisition of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014
Rome Strip Steel
Business Acquisition [Line Items]
Total acquired identifiable intangible assets	$ 5,500
Rome Strip Steel | Customer relationships
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 4,300
Useful Life (Years)	10 years
Rome Strip Steel | Non-compete agreements
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 1,200
Useful Life (Years)	5 years
DHybrid Systems Llc
Business Acquisition [Line Items]
Total acquired identifiable intangible assets	$ 3,788
DHybrid Systems Llc | Customer relationships
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 600
Useful Life (Years)	7 years
DHybrid Systems Llc | Technological know-how
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 3,100
Useful Life (Years)	10 years
DHybrid Systems Llc | Backlog
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 88
DHybrid Systems Llc | Backlog | Maximum
Business Acquisition [Line Items]
Useful Life (Years)	1 year
MEF
Business Acquisition [Line Items]
Total acquired identifiable intangible assets	$ 13,600
MEF | Customer relationships
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 4,300
Useful Life (Years)	7 years
MEF | Non-compete agreements
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 2,400
Useful Life (Years)	4 years
MEF | Technological know-how
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 5,100
Useful Life (Years)	10 years
MEF | Backlog
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 1,800
MEF | Backlog | Maximum
Business Acquisition [Line Items]
Useful Life (Years)	1 year
Steffes
Business Acquisition [Line Items]
Total acquired identifiable intangible assets	$ 10,290	$ 10,290
Steffes | Customer relationships
Business Acquisition [Line Items]
Acquired finite lived intangible assets		$ 10,000
Useful Life (Years)		9 years
Steffes | Trade Names
Business Acquisition [Line Items]
Acquired indefinite lived intangible assets		$ 290
Steffes | Trade Names | Maximum
Business Acquisition [Line Items]
Useful Life (Years)		1 year
Worthington Aritas
Business Acquisition [Line Items]
Total acquired identifiable intangible assets	16,800	$ 16,800
Worthington Aritas | Customer relationships
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 8,400
Useful Life (Years)	10 years
Worthington Aritas | Non-compete agreements
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 120
Useful Life (Years)	3 years
Worthington Aritas | Technological know-how
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 8,100
Useful Life (Years)	20 years
Worthington Aritas | Trade Names
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 180
Useful Life (Years)	2 years
TWB
Business Acquisition [Line Items]
Total acquired identifiable intangible assets	$ 22,028
TWB | Trade Names
Business Acquisition [Line Items]
Acquired indefinite lived intangible assets	4,120
TWB | Customer relationships
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 17,438
TWB | Customer relationships | Maximum
Business Acquisition [Line Items]
Useful Life (Years)	6 years
TWB | Customer relationships | Minimum
Business Acquisition [Line Items]
Useful Life (Years)	5 years
TWB | Non-compete agreements
Business Acquisition [Line Items]
Acquired finite lived intangible assets	$ 470
Useful Life (Years)	5 years

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Summary of Tax Years Open to Examination by Major Tax Jurisdiction (Parenthetical) (Detail)	12 Months Ended
	May. 31, 2015
UNITED STATES | Federal
Income Tax Examination [Line Items]
Open tax years	2012
UNITED STATES | State and Local Jurisdiction
Income Tax Examination [Line Items]
Open tax years	2010
AUSTRIA
Income Tax Examination [Line Items]
Open tax years	2013
CANADA
Income Tax Examination [Line Items]
Open tax years	2011
Mexico
Income Tax Examination [Line Items]
Open tax years	2009

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Reconciliation of Unrecognized Tax Benefits (Detail)	12 Months Ended
	May. 31, 2015 USD ($)
Income Tax Contingency [Line Items]
Beginning Balance	$ 4,110,000
Increases - tax positions taken in prior years	306,000
Decreases - tax positions taken in prior years	(456,000)
Increases (decreases) - current tax positions	672,000
Settlements	(636,000)
Lapse of statutes of limitations	(466,000)
Ending Balance	$ 3,530,000

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SCHEDULE II - Valuation and Qualifying Accounts (Detail) - Allowance for Doubtful Accounts - USD ($)		12 Months Ended
		May. 31, 2015	May. 31, 2014	May. 31, 2013
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		$ 3,043,000	$ 3,408,000	$ 3,329,000
Charged to Costs and Expenses		259,000	32,000	783,000
Charged to Other Accounts - Describe	[1]			26,000
Deductions - Describe	[2]	217,000	397,000	730,000
Balance at End of Period		$ 3,085,000	$ 3,043,000	$ 3,408,000

[1] Miscellaneous amounts.

[2] Uncollectable accounts charged to the allowance.

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Document and Entity Information - USD ($)	12 Months Ended
	May. 31, 2015	Jul. 24, 2015	Nov. 28, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	May 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Trading Symbol	WOR
Entity Registrant Name	WORTHINGTON INDUSTRIES INC
Entity Central Index Key	0000108516
Current Fiscal Year End Date	--05-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		65,408,865
Entity Public Float			$ 1,784,231,417

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Stock-Based Compensation

12 Months Ended

May. 31, 2015

Stock-Based Compensation

Note J – Stock-Based Compensation

Under our employee and non-employee director stock-based compensation plans (the “Plans”), we may grant incentive or non-qualified stock options, restricted common shares and performance shares to employees and non-qualified stock options and restricted common shares to non-employee directors. We classify share-based compensation expense within SG&A expense to correspond with the same financial statement caption as the majority of the cash compensation paid to employees. A total of 5,039,014 of our common shares have been authorized and are available for issuance in connection with the stock-based compensation plans in place at May 31, 2015.

We recognized pre-tax stock-based compensation expense of $17,916,000 ($11,500,000 after-tax), $22,017,000 ($13,778,000 after-tax), and $13,270,000 ($8,339,000 after-tax) under the Plans during fiscal 2015, fiscal 2014 and fiscal 2013, respectively. At May 31, 2015, the total unrecognized compensation cost related to non-vested awards was $16,367,000, which will be expensed over the next three fiscal years.

Non-Qualified Stock Options

Stock options may be granted to purchase common shares at not less than 100% of fair market value on the date of the grant. All outstanding stock options are non-qualified stock options. The exercise price of all stock options granted has been set at 100% of the fair market value of the underlying common shares on the date of grant. Generally, stock options granted to employees vest and become exercisable at the rate of (i) 20% per year for options issued before June 30, 2011, and (ii) 33% per year for options issued on or after June 30, 2011, in each case beginning one year from the date of grant, and expire ten years after the date of grant. Non-qualified stock options granted to non-employee directors vest and become exercisable on the earlier of (a) the first anniversary of the date of grant or (b) the date on which the next annual meeting of shareholders is held following the date of grant for any stock option granted as of the date of an annual meeting of shareholders of Worthington Industries, Inc. Stock options can be exercised through net-settlement, at the election of the option holder.

U.S. GAAP requires that all share-based awards be recorded as expense in the statement of earnings based on their grant-date fair value. We calculate the fair value of our non-qualified stock options using the Black-Scholes option pricing model and certain assumptions. The computation of fair values for all stock options incorporates the following assumptions: expected volatility (based on the historical volatility of our common shares); risk-free interest rate (based on the United States Treasury strip rate for the expected term of the stock options); expected term (based on historical exercise experience); and dividend yield (based on annualized current dividends and an average quoted price of our common shares over the preceding annual period).

The table below sets forth the non-qualified stock options granted during each of the last three fiscal years. For each grant, the exercise price was equal to the closing market price of the underlying common shares at each respective grant date. The fair values of these stock options were based on the Black-Scholes option pricing model, calculated at the respective grant dates. The calculated pre-tax stock-based compensation expense for these stock options, which is after an estimate of forfeitures, will be recognized on a straight-line basis over the respective vesting periods of the stock options.

(in thousands, except per share amounts)	2015		2014		2013
Granted		97		130		1,034
Weighted average exercise price, per share	$	42.95	$	32.21	$	20.83
Weighted average grant date fair value, per share	$	17.96	$	12.92	$	7.71
Pre-tax stock-based compensation	$	1,553	$	1,539	$	7,165

The weighted average fair value of stock options granted in fiscal 2015, fiscal 2014 and fiscal 2013 was based on the Black-Scholes option pricing model with the following weighted average assumptions:

	2015			2014			2013
Assumptions used:
Dividend yield		1.88	%		2.28	%		2.95	%
Expected volatility		50.92	%		52.23	%		52.88	%
Risk-free interest rate		1.88	%		1.69	%		0.91	%
Expected life (years)		6.0			6.0			6.0

The following tables summarize our stock option activity for the years ended May 31:

	2015					2014					2013
(in thousands, except per share)	Stock Options			Weighted Average Exercise Price		Stock Options			Weighted Average Exercise Price		Stock Options			Weighted Average Exercise Price
Outstanding, beginning of year		4,752		$	17.58		5,517		$	17.19		7,511			16.65
Granted		97			42.95		130			32.21		1,034			20.83
Exercised		(758	)		17.24		(828	)		17.39		(2,858	)		17.18
Forfeited		(47	)		17.00		(67	)		16.13		(170	)		15.86
Outstanding, end of year		4,044			18.25		4,752			17.58		5,517			17.19
Exercisable at end of year		3,276			17.63		2,996			17.57		2,682			17.70

	Number of Stock Options (in thousands)		Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
May 31, 2015
Outstanding		4,044		4.82	$	38,277
Exercisable		3,276		4.42		31,625
May 31, 2014
Outstanding		4,752		5.50	$	107,970
Exercisable		2,996		4.67		68,108
May 31, 2013
Outstanding		5,517		6.06	$	94,860
Exercisable		2,682		4.50		44,752

During fiscal 2015, the total intrinsic value of stock options exercised was $13,218,000. The total amount of cash received from the exercise of stock options during fiscal 2015 was $2,015,000, and the related excess tax benefit realized from the exercise of these stock options was $7,178,000.

The following table summarizes information about non-vested stock option awards for fiscal 2015:

	Number of Stock Options (in thousands)			Weighted Average Grant Date Fair Value Per Share
Non-vested, beginning of year		1,756		$	6.38
Granted		97			15.98
Vested		(1,038	)		6.32
Forfeited		(47	)		6.33
Non-vested, end of year		768		$	7.66

Service-Based Restricted Common Shares

We have awarded restricted common shares to certain employees and non-employee directors that contain service-based vesting conditions. Service-based restricted common shares granted to employees cliff vest three years from the date of grant. Service-based restricted common shares granted to non-employee directors vest under the same parameters as the stock options discussed above. These restricted common shares are valued at the closing market price of our common shares on the date of the grant.

The table below sets forth the restricted common shares we granted during each of fiscal 2015, fiscal 2014, and fiscal 2013. The calculated pre-tax stock-based compensation expense for these restricted common shares will be recognized on a straight-line basis over their respective vesting periods.

(in thousands, except per share amounts)	2015		2014		2013
Granted		240		380		121
Weighted average grant date fair value, per share	$	40.05	$	33.14	$	20.77
Pre-tax stock-based compensation	$	8,660	$	11,307	$	2,299

The following tables summarize our restricted common share activity for the years ended May 31:

	2015					2014					2013
(in thousands, except per share)	Restricted Common Shares			Weighted Average Grant Date Fair Value		Restricted Common Shares			Weighted Average Grant Date Fair Value		Restricted Common Shares			Weighted Average Grant Date Fair Value
Outstanding, beginning of year		573		$	28.36		399		$	18.74		513			17.08
Granted		240			40.05		380			33.14		121			20.76
Vested		(142	)		23.32		(185	)		17.17		(233	)		16.10
Forfeited		(36	)		32.62		(21	)		30.70		(2	)		22.09
Outstanding, end of year		635			33.65		573			28.36		399			18.74
Weighted average remaining contractual life of out standing restricted common shares (in years)		1.41					1.61					1.31
Aggregate intrinsic value of outstanding restricted common shares	$	17,269				$	23,112				$	13,701
Aggregate intrinsic value of restricted common shares vested during the year	$	5,400				$	7,499				$	5,559

Market-Based Restricted Common Shares

During fiscal 2015, we granted an aggregate of 50,000 restricted common shares to two key employees under one of our stock-based compensation plans. Vesting of these restricted common share awards is contingent upon the price of our common shares reaching $60.00 per share and remaining at or above that price for 30 consecutive days during the five-year period following the date of grant and the completion of a five-year service vesting period. The grant-date fair value of these restricted common shares, as determined by a Monte Carlo simulation model, was $32.06 per share. The Monte Carlo simulation model is a statistical technique that incorporates multiple assumptions to determine the probability that the market condition will be achieved. The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	1.60	%
Expected volatility	44.00	%
Risk-free interest rate	1.70	%

The calculated pre-tax stock-based compensation expense for these restricted common shares is $1,603,000 and will be recognized on a straight-line basis over the five-year service vesting period.

During fiscal 2014, we granted 360,000 restricted common shares to certain key employees under our stock-based compensation plans. Vesting of these restricted common share awards is contingent upon the price of our common shares reaching $50.00 per share within a five-year period from the date of grant and remaining at or above that price for 30 consecutive days and the completion of a three-year service vesting period. The grant-date fair value of these restricted common shares, as determined by a Monte Carlo simulation model, was $24.19 per share. The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	2.28	%
Expected volatility	53.40	%
Risk-free interest rate	1.41	%

The calculated pre-tax stock-based compensation expense for these restricted common shares was determined to be $8,708,000 and will continue to be recognized on a straight-line basis over the remaining vesting period.

Performance Shares

We have awarded performance shares to certain key employees that are contingent (i.e., vest) upon achieving corporate targets for cumulative corporate economic value added, earnings per share growth and, in the case of business unit executives, business unit operating income targets for the three-year periods ended or ending May 31, 2015, 2016 and 2017. These performance share awards will be paid, to the extent earned, in common shares of the Company in the fiscal quarter following the end of the applicable three-year performance period. The fair value of our performance shares is determined by the closing market prices of the underlying common shares at their respective grant dates and the pre-tax stock-based compensation expense is based on our periodic assessment of the probability of the targets being achieved and our estimate of the number of common shares that will ultimately be issued.

The table below sets forth the performance shares we granted (at target levels) during fiscal 2015, fiscal 2014, and fiscal 2013:

(in thousands, except per share amounts)	2015		2014		2013
Granted		61		59		108
Weighted average grant date fair value, per share	$	42.71	$	33.33	$	22.08
Pre-tax stock-based compensation	$	2,611	$	1,958	$	2,383

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Actuarial Assumptions Used for Defined Benefit Plan (Detail)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
To determine benefit obligation:
Discount rate	4.07%	4.38%	4.44%
To determine net periodic pension cost:
Discount rate	4.38%	4.44%	4.16%
Expected long-term rate of return	7.00%	8.00%	8.00%
Rate of compensation increase	0.00%	0.00%	0.00%

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Reconciliation of 35% Federal Statutory Tax Rate to Total Tax Provision (Detail)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Reconciliation of Statutory Federal Tax Rate [Line Items]
Federal statutory rate	35.00%	35.00%	35.00%
State and local income taxes, net of federal tax benefit	3.00%	2.00%	2.30%
Change in state and local valuation allowances	(1.10%)	(0.90%)	(1.30%)
Non-U.S. income taxes at other than 35%	(0.70%)	(1.00%)	(1.70%)
Change in Non-U.S. valuation allowances	1.20%	1.40%	1.10%
Qualified production activities deduction	(5.90%)	(3.90%)	(3.00%)
Acquisition of an additional 10% interest in TWB	0.00%	(3.40%)	0.00%
Research & development credits	(0.20%)	(1.10%)	(0.10%)
Tax write off of investment in foreign subsidiary	0.00%	(1.10%)	0.00%
Benefit related to foreign tax credits	(5.30%)	0.00%	0.00%
Other	(0.90%)	0.50%	(0.20%)
Effective tax rate attributable to controlling interest	25.10%	27.50%	32.10%

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Consolidated Statements of Earnings - Entity [Domain] - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		May. 31, 2015	May. 31, 2014	May. 31, 2013
Net sales		$ 3,384,234	$ 3,126,426	$ 2,612,244
Cost of goods sold		2,920,701	2,633,907	2,215,601
Gross margin		463,533	492,519	396,643
Selling, general and administrative expense		295,920	300,396	258,324
Impairment of goodwill and long-lived assets		100,129	58,246	6,488
Restructuring and other expense (income)		6,514	(2,912)	3,293
Joint venture transactions		413	1,036	(604)
Operating income		60,557	135,753	129,142
Other income (expense):
Miscellaneous income		795	16,963	1,452
Interest expense		(35,800)	(26,671)	(23,918)
Equity in net income of unconsolidated affiliates		87,476	91,456	94,624
Earnings before income taxes		113,028	217,501	201,300
Income tax expense		25,772	57,349	64,465
Net earnings		87,256	160,152	136,835
Net earnings attributable to noncontrolling interests	[1]	10,471	8,852	393
Net earnings attributable to controlling interest		$ 76,785	$ 151,300	$ 136,442
Basic
Average common shares outstanding		66,309	68,944	69,301
Earnings per share attributable to controlling interest		$ 1.16	$ 2.19	$ 1.97
Diluted
Average common shares outstanding		68,483	71,664	71,314
Earnings per share attributable to controlling interest		$ 1.12	$ 2.11	$ 1.91

[1] Net earnings attributable to noncontrolling interests are not taxable to Worthington.

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Restructuring and Other Expense (Income)

12 Months Ended

May. 31, 2015

Restructuring and Other Expense (Income)

Note D – Restructuring and Other Expense (Income)

We consider restructuring activities to be programs whereby we fundamentally change our operations such as closing and consolidating manufacturing facilities, moving manufacturing of a product to another location, and employee severance (including rationalizing headcount or other significant changes in personnel).

A progression of the liabilities associated with our restructuring activities, combined with a reconciliation to the restructuring and other expense (income) financial statement caption in our consolidated statement of earnings for fiscal 2015, is summarized below:

(in thousands)	Beginning Balance		Expense			Payments			Adjustments		Ending Balance
Early retirement and severance	$	6,495	$	3,323		$	(7,694	)	$	46	$	2,170
Facility exit and other costs		534		1,266			(1,568	)		139		371
	$	7,029		4,589		$	(9,262	)	$	185	$	2,541
Net loss on sale of assets				2,338
Less: joint venture transactions				(413	)
Restructuring and other expense			$	6,514

During fiscal 2015, the following actions were taken related to the Company’s restructuring activities:

• In connection with the wind-down of our former Metal Framing operating segment, we recognized $413,000 of facility exit and other costs. These costs were recognized within the joint venture transactions financial statement caption in our consolidated statement of earnings to correspond with amounts previously recognized in connection with the formation of ClarkDietrich and the subsequent wind-down of our former Metal Framing operating segment.

• The Company completed the sale of its aluminum high-pressure cylinder business in New Albany, Mississippi, for cash proceeds of $8,415,000. A loss of $2,670,000 was recognized as a result of the transaction, which included $1,891,000 of allocated goodwill. The Company also recognized an accrual of $664,000 for expected severance costs associated with the transaction.

• The Company completed the sale of the ACT business within Engineered Cabs for cash proceeds of $2,622,000, resulting in a gain of $332,000.

• On March 24, 2015, the Company announced a workforce reduction in several oil and gas equipment locations due to slowing demand. The Company recognized an accrual of $2,221,000 for expected severance costs covering those affected by the workforce reductions.

• In connection with the consolidation of the BernzOmatic hand torch manufacturing operation in Medina, New York into the existing Pressure Cylinders’ facility in Chilton, Wisconsin, we incurred $853,000 of facility exit costs.

• In connection with the wind down of the Military Construction business, the Company recognized an accrual of $366,000 for expected severance costs

The total liability as of May 31, 2015 is expected to be paid in the next twelve months.

A progression of the liabilities associated with our restructuring activities, combined with a reconciliation to the restructuring and other expense (income) financial statement caption in our consolidated statement of earnings for fiscal 2014, is summarized as follows:

(in thousands)	Beginning Balance		Expense			Payments			Adjustments			Ending Balance
Early retirement and severance	$	5,029	$	6,236		$	(4,703	)	$	(67	)	$	6,495
Facility exit and other costs		1,200		2,477			(3,021	)		(122	)		534
	$	6,229		8,713		$	(7,724	)	$	(189	)	$	7,029
Net gain on sale of assets				(10,589	)
Less: joint venture transactions				(1,036	)
Restructuring and other income			$	(2,912	)

During fiscal 2014, the following actions were taken related to the Company’s restructuring activities:

• In connection with the wind-down of our former Metal Framing operating segment, we recognized $924,000 of facility exit and other costs and a loss of $112,000 related to the sale of certain retained assets. These costs were recognized within the joint venture transactions financial statement caption in our consolidated statement of earnings to correspond with amounts previously recognized in connection with the formation of ClarkDietrich and the subsequent wind-down of our former Metal Framing operating segment.

• In connection with the closure of our commercial stairs business, we incurred facility exit charges of $652,000.

• In connection with the consolidation of the BernzOmatic hand torch manufacturing operation in Medina, New York into the existing Pressure Cylinders’ facility in Chilton, Wisconsin, we recognized an additional accrual of $578,000 for expected employee severance costs and $377,000 of facility exit costs. During the fourth quarter of fiscal 2013, we had recognized a $2,488,000 accrual for expected severance costs related to this matter.

• On June 30, 2013, the Company completed the sale of Integrated Terminals, its warehouse facility in Detroit, Michigan, for cash proceeds of $7,457,000, resulting in a gain of $4,762,000.

• On November 12, 2013, the Company entered into an agreement to sell the operating assets related to its steel high pressure and acetylene cylinders business in North America, resulting in a gain of $5,939,000. In connection with this transaction, the Company recognized a $3,714,000 accrual for expected severance costs and incurred facility exit charges of $524,000.

• On December 10, 2013, the Company announced the closure of its Baltimore steel facility, which ceased operations in May 2014. The Company shipped the remaining inventory at the Baltimore facility to other Worthington locations and completely exited the facility before the end of the first quarter of fiscal 2015. In connection with this matter, the Company recognized an accrual of $1,380,000 for expected severance costs.

• During May 2014, the Company completed the closure of its Mid-Rise construction business. In connection with this matter, the Company recognized an accrual of $564,000 for expected severance costs.

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Goodwill and Other Long-Lived Assets

12 Months Ended

May. 31, 2015

Goodwill and Other Long-Lived Assets

Note C – Goodwill and Other Long-Lived Assets

Fiscal 2015:    During the fourth quarter of fiscal 2015, we determined that indicators of impairment were present with regard to intangible assets related to our compressed natural gas (“CNG”) fuel systems joint venture, dHybrid. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the intangible assets were written down to their fair value, resulting in an impairment charge of $2,344,000.

During the third quarter of fiscal 2015, the Company concluded that an interim impairment test of the goodwill of its Engineered Cabs reporting unit was necessary. This conclusion was based on certain indicators of impairment, including the decision to close the Company’s Engineered Cabs’ facility in Florence, South Carolina, and significant downward revisions to forecasted cash flows as a result of continued weakness in the mining and agricultural end markets and higher than expected manufacturing costs. The Company expects to incur approximately $2,400,000 of severance expense associated with the facility closure. This amount will be recognized as restructuring expense ratably over the future service period.

Prior to conducting the goodwill impairment test, the Company first evaluated the other long-lived assets of the Engineered Cabs reporting unit for recoverability. Recoverability was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sums of the undiscounted future cash flows for the customer relationship intangible asset and the property, plant and equipment of the Florence facility were less than their respective carrying values. As a result, these assets were written down to their respective fair values, resulting in impairment charges of $22,356,000 for the customer relationship intangible asset and $14,311,000 for the property, plant and equipment of the Florence asset group during the third quarter of fiscal 2015.

As noted above, the Company determined that indicators of potential impairment existed to require an interim goodwill analysis of the Engineered Cabs reporting unit. A comparison of the fair value of the Engineered Cabs reporting unit, determined using discounted cash flows, to its carrying value indicated that a step 2 calculation to quantify the potential impairment was required. After a subsequent review of the fair value of the net assets of Engineered Cabs, it was determined that the implied fair value of goodwill was $0 and, as a result, the entire $44,933,000 goodwill balance was written off during the third quarter of fiscal 2015. The key assumptions that drove the fair value calculation were projected cash flows and the discount rate.

During the second quarter of fiscal 2015, management committed to a plan to sell the assets of the Advanced Component Technologies, Inc. (“ACT”) business within Engineered Cabs. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell, resulting in an impairment charge of $2,389,000. During the third quarter of fiscal 2015, the Company completed the sale of this business and recognized a gain of $332,000.

During the second quarter of fiscal 2015, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value, resulting in an impairment charge of $3,221,000. On May 1, 2015, the Company completed the sale of this business. For additional information, refer to “Item 8. – Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note D – Restructuring and Other Expense (Income)” of this Annual Report on Form 10-K.

During the second quarter of fiscal 2015, we determined that indicators of impairment were present at the Company’s military construction business. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value, resulting in an impairment charge of $1,179,000, which represents the remaining book value of the asset group.

During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. As all of the criteria for classification as assets held for sale were met, the net assets of the business were presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell as of May 31, 2014. As a result of changes in facts and circumstances related to the planned sale of Worthington Nitin Cylinders during the second quarter of fiscal 2015, the Company reassessed the fair value of the business and determined that the remaining book value should be written off resulting in an impairment charge of $6,346,000.

During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s stainless steel business, Precision Specialty Metals, Inc. (“PSM”). As all of the criteria for classification as assets held for sale were met, the net assets of the business have been presented separately as assets held for sale in our consolidated balance sheets as of May 31, 2015 and 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell as of May 31, 2014. As a result of changes in facts and circumstances related to the planned sale, the Company reassessed the fair value of the business resulting in additional impairment charges totaling $3,050,000 during fiscal 2015.

Fiscal 2014:    During the fourth quarter of fiscal 2014, management committed to a plan to sell the Company’s 60%-owned consolidated joint venture in India, Worthington Nitin Cylinders. As all of the criteria for classification as assets held for sale were met, the net assets of this business are presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $5,925,000, was lower than its net book value, an impairment charge of $18,959,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest of $7,583,000 was recorded within net earnings attributable to noncontrolling interest in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, management committed to a plan to sell PSM. As all of the criteria for classification as assets held for sale were met, the net assets of this business are presented separately as assets held for sale in our consolidated balance sheet as of May 31, 2014. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group, or $19,115,000, was lower than its net book value, an impairment charge of $7,141,000 was recognized within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

During the fourth quarter of fiscal 2014, we determined that indicators of impairment were present at the Company’s aluminum high-pressure cylinder business in New Albany, Mississippi, due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $7,034,000, resulting in an impairment charge of $1,412,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

During the second quarter of fiscal 2014, we committed to a re-branding initiative. Under the re-branding initiative, we re-branded substantially all of our businesses under the Worthington Industries name. In connection with the change in branding strategy, we discontinued the use of all non-Worthington trade names except those related to consumer products such as BernzOmatic^® and Balloon Time^® and those related to our joint ventures. As a result, we determined an impairment indicator was present for the trade names that have been or will be discontinued. As no future cash flows will be attributed to the impacted trade names, the entire book value was written off, resulting in an impairment charge of $30,734,000 within impairment of long-lived assets in our fiscal 2014 consolidated statement of earnings.

Fiscal 2013:    During the fourth quarter of fiscal 2013, we determined that indicators of impairment were present at Worthington Nitin Cylinders due to current and projected operating losses. Recoverability of the identified asset group was tested using future cash flow projections based on management’s long-range estimates of market conditions. The sum of these undiscounted future cash flows was less than the net book value of the asset group. In accordance with the applicable accounting guidance, the net assets were written down to their fair value of $6,856,000, resulting in an impairment charge of $4,968,000 within impairment of long-lived assets in our fiscal 2013 consolidated statement of earnings. The portion of this impairment loss attributable to the noncontrolling interest, or $1,987,000, was recorded within net earnings attributable to noncontrolling interest in our fiscal 2013 consolidated statement of earnings.

During the first quarter of fiscal 2013, management committed to a plan to sell the Company’s pressure cylinders operations in Czech Republic. In accordance with the applicable accounting guidance, the net assets were recorded at the lower of net book value or fair value less costs to sell. As the fair value of the asset group was lower than its net book value, an impairment charge of $1,570,000 was recognized. On October 31, 2012, we completed the sale of this asset group to an unrelated third party resulting in a gain of approximately $50,000. The combined impact of these items of $1,520,000 is presented within impairment of long-lived assets in our fiscal 2013 consolidated statement of earnings.

Goodwill

The following table summarizes the changes in the carrying amount of goodwill during fiscal 2015 and fiscal 2014 by reportable business segment:

	Steel Processing		Pressure Cylinders			Engineered Cabs			Other			Total
(in thousands)
Balance at May 31, 2013
Goodwill	$	-	$	163,274		$	44,933		$	127,245		$	335,452
Accumulated impairment losses		-		-			-			(121,594	)		(121,594	)
		-		163,274			44,933			5,651			213,858
Acquisitions and purchase accounting adjustments		-		36,033			-			-			36,033
Translation adjustments		-		1,202			-			-			1,202
Balance at May 31, 2014
Goodwill		-		200,509			44,933			127,245			372,687
Accumulated impairment losses		-		-			-			(121,594	)		(121,594	)
		-		200,509			44,933			5,651			251,093
Acquisitions and purchase accounting adjustments		6,587		41,421			-			-			48,008
Divestitures		-		(1,891	)		-			-			(1,891	)
Translation adjustments		-		(13,278	)		-			-			(13,278	)
Impairment losses		-		-			(44,933	)		-			(44,933	)
		6,587		26,252			(44,933	)		-			(12,094	)
Balance at May 31, 2015
Goodwill		6,587		226,761			44,933			127,245			405,526
Accumulated impairment losses		-		-			(44,933	)		(121,594	)		(166,527	)
	$	6,587	$	226,761		$	-		$	5,651		$	238,999

For additional information regarding the Company’s acquisitions, refer to “Note O – Acquisitions.”

Other Intangible Assets

Intangible assets with definite lives are amortized on a straight-line basis over their estimated useful lives, which range from one to 20 years. The following table summarizes other intangible assets by class as of May 31, 2015 and 2014:

	2015				2014
(in thousands)	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	12,601	$	-	$	12,601	$	-
Total indefinite-lived intangible assets		12,601		-		12,601		-
Definite-lived intangible assets:
Customer relationships	$	119,871	$	34,421	$	143,585	$	28,257
Non-compete agreements		14,221		6,897		10,733		4,263
Technology / know-how		15,633		2,350		12,068		1,273
Other		4,338		3,879		2,512		1,713
Total definite-lived intangible assets		154,063		47,547		168,898		35,506
Total intangible assets	$	166,664	$	47,547	$	181,499	$	35,506

Amortization expense of $20,422,000, $17,386,000, and $10,467,000 was recognized during fiscal 2015, fiscal 2014 and fiscal 2013, respectively.

Amortization expense for each of the next five fiscal years is estimated to be:

(in thousands)
2016	$	17,163
2017	$	16,275
2018	$	15,850
2019	$	12,731
2020	$	10,345

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Acquisitions

12 Months Ended

May. 31, 2015

Acquisitions

Note O – Acquisitions

Fiscal 2015

Rome Strip Steel Company, Inc.

On January 16, 2015, the Company acquired the assets of Rome Strip Steel Company, Inc. (“Rome Strip Steel”) for cash consideration of $54,495,000. This amount differs from the $55,312,000 paid at closing due to an estimated working capital deficit of $817,000. Located in Rome, New York, the Rome Strip Steel business manufactures cold rolled steel to extremely tight tolerances. The acquired assets became part of our Steel Processing operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of the assets of Rome Strip Steel, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	4,300		10
Non-compete agreements		1,200		5
Total acquired identifiable intangible assets	$	5,500

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for the assets of Rome Strip Steel and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Cash	$	10
Accounts receivable		6,333
Inventories		17,063
Prepaid expenses		41
Intangible assets		5,500
Property, plant and equipment		22,775
Total identifiable assets		51,722
Accounts payable		(3,091	)
Other accrued items		(410	)
Other liabilites		(313	)
Net assets		47,908
Goodwill		6,587
Purchase price	$	54,495
Plus: estimated working capital deficit		817
Cash paid at closing	$	55,312

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

dHybrid Systems, LLC

On October 20, 2014, we acquired a 79.59% ownership interest in dHybrid, a manufacturer of CNG systems for large trucks, for total consideration of $15,918,000, including contingent consideration with an estimated fair value of $3,979,000, and the assumption of certain liabilities. The remaining 20.41% was retained by a founding member. The acquired business became part of our Pressure Cylinders operating segment upon closing.

The contingent consideration arrangement requires the Company to pay $3,979,000 of additional consideration when cumulative net sales beginning January 1, 2013 reach $20,000,000 plus 50% of gross margin above certain thresholds in each of the five twelve-month periods following the closing date. We determined the acquisition-date fair value of the contingent consideration obligation using a probability weighted cash flow approach based on management’s projections of future sales and gross margin. Refer to “Note Q – Fair Value Measurements” for additional information regarding the fair value measurement of the contingent consideration obligation.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of the assets of dHybrid, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Technological know-how	$	3,100		10
Customer relationships		600		7
Backlog		88		Less than 1
Total acquired identifiable intangible assets	$	3,788

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for our 79.59% interest in dHybrid and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Consideration Transferred:
Cash consideration	$	11,939
Fair value of contingent consideration		3,979
Total consideration	$	15,918
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash and cash equivalents	$	1,132
Accounts receivable		1,482
Inventories		2,732
Prepaid expenses and other current assets		38
Intangible assets		3,788
Property, plant and equipment		406
Total identifiable assets		9,578
Accounts payable		(1,867	)
Accrued liabilities		(533	)
Long-term debt		(5,000	)
Net identifiable assets		2,178
Goodwill		17,822
Net assets		20,000
Noncontrolling interest		(4,082	)
Total consideration	$	15,918

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

Midstream Equipment Fabrication LLC

On August 1, 2014, we acquired the assets of Midstream Equipment Fabrication LLC (“MEF”) for cash consideration of $38,441,000 and the assumption of certain liabilities. The MEF business manufactures patented horizontal heated and high pressure separators used to separate oilfield fluids and gas. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of the assets of MEF, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful Life (Years)
Category
Technological know-how	$	5,100		10
Customer relationships		4,300		7
Non-compete agreements		2,400		4
Backlog		1,800		Less than 1
Total acquired identifiable intangible assets	$	13,600

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for the assets of MEF and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Accounts receivable	$	3,329
Inventories		3,550
Intangible assets		13,600
Property, plant and equipment		166
Total identifiable assets		20,645
Accounts payable		(555	)
Other accrued items		(92	)
Deferred revenue		(4,808	)
Net assets		15,190
Goodwill		23,251
Cash consideration	$	38,441

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

James Russell Engineering Works, Inc.

On July 31, 2014, we acquired the assets of James Russell Engineering Works, Inc. (“JRE”) for cash consideration of $1,571,000. The JRE business manufactures aluminum and stainless steel cryogenic transport trailers used for hauling liquid oxygen, nitrogen, argon, hydrogen and LNG for producers and distributors of industrial gases and LNG. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values. The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for the assets of JRE and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Cash	$	253
Accounts receivable		509
Inventories		2,793
Prepaid expense and other current assets		40
Property, plant and equipment		250
Total identifiable assets		3,845
Accounts payable		(514	)
Other accrued items		(2,160	)
Net identifiable assets		1,171
Goodwill		400
Total cash consideration	$	1,571

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward, and have not been material. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2014, would not be materially different than reported results.

Fiscal 2014

The Tank Manufacturing Division of Steffes Corporation

On March 27, 2014, we acquired the tank manufacturing division of Steffes Corporation (“Steffes”) for cash consideration of approximately $27,962,000. This division manufactures oilfield storage tanks for customers drilling in the Bakken shale and Williston Basin region out of a manufacturing facility located in Dickinson, North Dakota. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of Steffes, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful Life (Years)
Category
Customer relationships	$	10,000		9
Trade name		290		Less than 1
Total acquired identifiable intangible assets	$	10,290

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for Steffes and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Inventories	$	2,316
Intangible assets		10,290
Property, plant and equipment		2,638
Total identifiable assets		15,244
Goodwill		12,718
Purchase price	$	27,962

Operating results of the acquired business have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2013, would not be materially different than reported results.

Aritaş Basinçli Kaplar Sanayi

On January 24, 2014, we acquired a 75% interest in Worthington Aritas, one of Europe’s leading LNG and cryogenic technology companies. The remaining 25% stake was retained by the prior owners. The total purchase price, including an adjustment for estimated final working capital, was $35,325,000. The purchase price also included contingent consideration with an estimated fair value of $404,000 at the acquisition date. The acquired assets became part of our Pressure Cylinders operating segment upon closing.

The contingent consideration arrangement required earnings before interest, taxes, depreciation and amortization (“EBITDA”) to exceed $5,000,000 during any 12 consecutive months during the first 14 month period following the closing date. The target EBITDA level was not met during the required time frame and the contingent consideration liability of $404,000 was written off to miscellaneous income during fiscal 2015.

The assets acquired and liabilities assumed were recognized at their estimated acquisition-date fair values based on a preliminary valuation analysis, with goodwill representing the excess of the purchase price over the fair value of the net identifiable assets acquired. In connection with the acquisition of our 75% interest in Worthington Aritas, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	8,400		10
Technological know-how		8,100		20
Trade name		180		2
Non-compete agreements		120		3
Total acquired identifiable intangible assets	$	16,800

The purchase price includes the fair values of other assets that were not identifiable, not separately recognizable under accounting rules (e.g., assembled workforce) or of immaterial value. The purchase price also includes a going-concern element that represents our ability to earn a higher rate of return on this group of assets than would be expected on the separate assets as determined during the valuation process. This additional investment value resulted in goodwill, which is not expected to be deductible for income tax purposes.

The following table summarizes the consideration transferred for Worthington Aritas and the final fair values assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)	Preliminary Valuation February 28, 2014			Measurement Period Adjustments			Final Valuation May 31, 2014
Cash and cash equivalents	$	1,037		$	-		$	1,037
Accounts receivable		3,326			(84	)		3,242
Inventories		10,678			-			10,678
Prepaid expenses and other current assets		1,317			-			1,317
Intangible assets		16,800			-			16,800
Other noncurrent assets		1,099			-			1,099
Property, plant and equipment		5,467			-			5,467
Total identifiable assets		39,724			(84	)		39,640
Accounts payable		(5,587	)		-			(5,587	)
Short-term borrowings		(251	)		-			(251	)
Accrued liabilities		(2,756	)		(4,146	)		(6,902	)
Other liabilities		(4,954	)		4,954			-
Deferred taxes		(2,787	)		-			(2,787	)
Net identifiable assets		23,389			724			24,113
Goodwill		23,586			(599	)		22,987
Net assets		46,975			125			47,100
Noncontrolling interest		(11,744	)		(31	)		(11,775	)
Total consideration	$	35,231		$	94		$	35,325

The Company recognized $1,520,000 of acquisition-related costs that were expensed within SG&A expense in fiscal 2014. Operating results of Worthington Aritas have been included in our consolidated statement of earnings from the acquisition date, forward. Pro forma net sales and net earnings, including the acquired business since the beginning of fiscal 2013, would not be materially different than reported results.

TWB Company, L.L.C.

On July 31, 2013, we purchased an additional 10% interest in our laser welded blank joint venture, TWB, for $17,869,000, increasing our ownership to a 55% controlling interest. This transaction was accounted for as a step acquisition, which required that we re-measure our previously held 45% ownership interest to fair value and record the difference between fair value and carrying value as a gain in our consolidated statement of earnings. The re-measurement to fair value resulted in a non-cash pre-tax gain of $11,000,000, which is included in miscellaneous income in our consolidated statement of earnings for fiscal 2014. The acquired assets became part of our Steel Processing operating segment upon closing.

The assets acquired and liabilities assumed were recognized at their acquisition-date fair values. In connection with the acquisition of TWB, we identified and valued the following identifiable intangible assets:

(in thousands)	Amount		Useful  Life (Years)
Category
Customer relationships	$	17,438		5-6
Trade names		4,120		Indefinite
Non-compete agreement		470		5
Total acquired identifiable intangible assets	$	22,028

The estimated fair value of the assets acquired and liabilities assumed approximated the purchase price and therefore no goodwill was recognized.

The following table summarizes the consideration transferred for our 55% controlling interest in TWB and the fair value assigned to the assets acquired and liabilities assumed at the acquisition date:

(in thousands)
Consideration Transferred:
Cash consideration	$	17,869
Fair value of previously held equity interest in TWB		72,369
Total consideration	$	90,238
Estimated Fair Value of Assets Acquired and Liabilities Assumed:
Cash and cash equivalents	$	70,826
Accounts receivable		52,012
Inventories		20,403
Prepaid expenses and other current assets		4,027
Intangible assets		22,028
Other noncurrent assets		103
Property, plant and equipment		52,390
Total identifiable assets		221,789
Accounts payable		(50,642	)
Accrued liabilities		(6,431	)
Deferred taxes		(2,109	)
Net assets		162,607
Noncontrolling interest		(72,369	)
Total consideration	$	90,238

The fair value of our previously held equity interest and the noncontrolling interest was derived using a market approach, and included a minority discount of 10% to reflect management’s estimate of the control premium.

Net sales of $319,542,000 and earnings before income taxes of $22,991,000 were included in the Company’s consolidated statement of earnings for fiscal 2014.

Proforma net sales of the combined entity had the acquisition occurred at the beginning of fiscal 2013 were $3,180,428,000 and $2,956,309,000 for the fiscal years ended May 31, 2014 and 2013, respectively. Pro forma earnings would not be materially different than reported results due to our 45% noncontrolling interest in TWB prior to the acquisition date.

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Employee Pension Plans

12 Months Ended

May. 31, 2015

Employee Pension Plans

Note K – Employee Pension Plans

We provide retirement benefits to employees mainly through defined contribution retirement plans. Eligible participants make pre-tax contributions based on elected percentages of eligible compensation, subject to annual addition and other limitations imposed by the Internal Revenue Code and the various plans’ provisions. Company contributions consist of company matching contributions, annual or monthly employer contributions and discretionary contributions, based on individual plan provisions.

We also have one defined benefit plan, The Gerstenslager Company Bargaining Unit Employees’ Pension Plan (the “Gerstenslager Plan” or “defined benefit plan”). The Gerstenslager Plan is a non-contributory pension plan, which covers certain employees based on age and length of service. Our contributions have complied with ERISA’s minimum funding requirements. Effective May 9, 2011, in connection with the formation of the ArtiFlex joint venture, the Gerstenslager Plan was frozen, which qualified as a curtailment under the applicable accounting guidance. We did not recognize a gain or loss in connection with the curtailment of the Gerstenslager Plan.

The following table summarizes the components of net periodic pension cost for the defined benefit plan and the defined contribution plans for the years ended May 31:

(in thousands)	2015			2014			2013
Defined benefit plan:
Interest cost	$	1,541		$	1,403		$	1,361
Actual return on plan assets		1,846			2,524			4,355
Net amortization and deferral		(3,641	)		(4,175	)		(5,522	)
Net periodic pension cost (benefit) on defined benefit plan		(254	)		(248	)		194
Defined contribution plans		13,270			12,586			9,955
Total retirement plan cost	$	13,016		$	12,338		$	10,149

The following actuarial assumptions were used for our defined benefit plan:

	2015			2014			2013
To determine benefit obligation:
Discount rate		4.07	%		4.38	%		4.44	%
To determine net periodic pension cost:
Discount rate		4.38	%		4.44	%		4.16	%
Expected long-term rate of return		7.00	%		8.00	%		8.00	%
Rate of compensation increase		n/a			n/a			n/a

To calculate the discount rate, we used the expected cash flows of the benefit payments and the Citigroup Pension Index. The Gerstenslager Plan’s expected long-term rate of return in fiscal 2015, fiscal 2014 and fiscal 2013 was based on the actual historical returns adjusted for a change in the frequency of lump-sum settlements upon retirement. In determining our benefit obligation, we use the actuarial present value of the vested benefits to which each eligible employee is currently entitled, based on the employee’s expected date of separation or retirement.

The following tables provide a reconciliation of the changes in the projected benefit obligation and fair value of plan assets and the funded status for the Gerstenslager Plan during fiscal 2015 and fiscal 2014 as of the respective measurement dates:

(in thousands)	May 31, 2015			May 31, 2014
Change in benefit obligation
Benefit obligation, beginning of year	$	35,539		$	31,930
Interest cost		1,541			1,403
Actuarial loss		3,924			3,002
Benefits paid		(777	)		(796	)
Benefit obligation, end of year	$	40,227		$	35,539
Change in plan assets
Fair value, beginning of year	$	26,470		$	24,442
Actual return on plan assets		1,846			2,524
Company contributions		620			300
Benefits paid		(777	)		(796	)
Fair value, end of year	$	28,159		$	26,470
Funded status	$	(12,068	)	$	(9,069	)
Amounts recognized in the consolidated balance sheets consist of:
Other liabilities	$	(12,067	)	$	(9,069	)
Accumulated other comprehensive loss		17,900			14,028
Amounts recognized in accumulated other comprehensive loss consist of:
Net loss		17,900			14,028
Total	$	17,900		$	14,028

The following table shows other changes in plan assets and benefit obligations recognized in OCI during the fiscal year ended May 31:

(in thousands)	2015			2014
Net actuarial loss	$	(4,199	)	$	(2,419	)
Amortization of net loss		327			290
Total recognized in other comprehensive loss	$	(3,872	)	$	(2,129	)
Total recognized in net periodic benefit cost and other comprehensive loss	$	(3,618	)	$	(1,881	)

The estimated net loss for the defined benefit plan that will be amortized from AOCI into net periodic pension cost over the fiscal year ending May 31, 2016 is $433,654.

Pension plan assets are required to be disclosed at fair value in the consolidated financial statements. Fair value is defined in “Note Q – Fair Value Measurements.” The pension plan assets’ fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

The following table sets forth, by level within the fair value hierarchy, a summary of the defined benefit plan’s assets measured at fair value on a recurring basis at May 31, 2015:

(in thousands)	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment:
Money Market Funds	$	1,775	$	1,775	$	-	$	-
Bond Funds		11,524		11,524		-		-
Equity Funds		14,860		14,860		-		-
Totals	$	28,160	$	28,160	$	-	$	-

The following table sets forth by level within the fair value hierarchy a summary of the defined benefit plan’s assets measured at fair value on a recurring basis at May 31, 2014:

(in thousands)	Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment:
Money Market Funds	$	1,099	$	1,099	$	-	$	-
Bond Funds		11,570		11,570		-		-
Equity Funds		13,801		13,801		-		-
Totals	$	26,470	$	26,470	$	-	$	-

Fair values of the money market, bond and equity funds held by the defined benefit plan were determined by quoted market prices.

Plan assets for the defined benefit plan consisted principally of the following as of the respective measurement dates:

	May 31, 2015			May 31, 2014
Asset category
Equity securities		53	%		52	%
Debt securities		41	%		44	%
Other		6	%		4	%
Total		100	%		100	%

Equity securities include no employer stock. The investment policy and strategy for the defined benefit plan is: (i) long-term in nature with liquidity requirements that are anticipated to be minimal due to the projected normal retirement date of the average employee and the current average age of participants; (ii) to earn nominal returns, net of investment fees, equal to or in excess of the actuarial assumptions of the plan; and (iii) to include a strategic asset allocation of 60-80% equities, including international, and 20%-40% fixed income investments. No employer contributions are expected to be made to the defined benefit plan during fiscal 2016.

The following estimated future benefits, which reflect expected future service, as appropriate, are expected to be paid during the fiscal years noted:

(in thousands)
2016	$	799
2017	$	872
2018	$	958
2019	$	1,080
2020	$	1,183
2021-2025	$	7,896

Commercial law requires us to pay severance and service benefits to employees at our Austrian Pressure Cylinders location. Severance benefits must be paid to all employees hired before December 31, 2002. Employees hired after that date are covered under a governmental plan that requires us to pay benefits as a percentage of compensation (included in payroll tax withholdings). Service benefits are based on a percentage of compensation and years of service. The accrued liability for these unfunded plans was $5,564,000 and $6,440,000 at May 31, 2015 and 2014, respectively, and was included in other liabilities on the consolidated balance sheets. Net periodic pension cost for these plans was $718,000, $677,000, and $689,000, for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. The assumed salary rate increase was 3.0%, for each of fiscal 2015, fiscal 2014 and fiscal 2013. The discount rate at May 31, 2015, 2014 and 2013 was 1.60%, 3.25%, and 4.50%, respectively. Each discount rate was based on a published corporate bond rate with a term approximating the estimated benefit payment cash flows and is consistent with European and Austrian regulations.

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Summary of Defined Benefit Plan's Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014	May. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	$ 28,160	$ 26,470	$ 24,442
Quoted Prices In Active Markets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	28,160	26,470
Money Market Funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	1,775	1,099
Money Market Funds | Quoted Prices In Active Markets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	1,775	1,099
Bond Funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	11,524	11,570
Bond Funds | Quoted Prices In Active Markets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	11,524	11,570
Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	14,860	13,801
Equity Funds | Quoted Prices In Active Markets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit plan assets fair value	$ 14,860	$ 13,801

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Debt and Receivables Securitization

12 Months Ended

May. 31, 2015

Debt and Receivables Securitization

Note G – Debt and Receivables Securitization

The following table summarizes our long-term debt and short-term borrowings outstanding at May 31, 2015 and 2014:

(in thousands)	2015		2014
Short-term borrowings	$	90,550	$	10,362
4.55% senior notes due April 15, 2026		249,524		249,472
4.60% senior notes due August 10, 2024		150,000		150,000
6.50% senior notes due April 15, 2020		149,920		149,912
Term loans		30,429		4,235
Floating rate senior notes due December 17, 2014		-		100,000
Industrial revenue bonds due April 2019		-		2,024
Other		320		320
Total debt		670,743		666,325
Less: current maturities and short-term borrowings		91,391		111,535
Total long-term debt	$	579,352	$	554,790

We maintain a $100,000,000 revolving trade accounts receivable securitization facility (the “AR Facility”) that was available throughout fiscal 2015 and fiscal 2014. During the third quarter of fiscal 2015, we extended the maturity of the AR Facility to January 2018. Pursuant to the terms of the AR Facility, certain of our subsidiaries sell their accounts receivable without recourse, on a revolving basis, to Worthington Receivables Corporation (“WRC”), a wholly-owned, consolidated, bankruptcy-remote subsidiary. In turn, WRC may sell without recourse, on a revolving basis, up to $100,000,000 of undivided ownership interests in this pool of accounts receivable to a multi-seller, asset-backed commercial paper conduit (the “Conduit”). Purchases by the Conduit are financed with the sale of A1/P1 commercial paper. We retain an undivided interest in this pool and are subject to risk of loss based on the collectability of the receivables from this retained interest. Because the amount eligible to be sold excludes receivables more than 90 days past due, receivables offset by an allowance for doubtful accounts due to bankruptcy or other cause, concentrations over certain limits with specific customers and certain reserve amounts, we believe additional risk of loss is minimal. The book value of the retained portion of the pool of accounts receivable approximates fair value. As of May 31, 2015, the pool of eligible accounts receivable exceeded the $100,000,000 limit, and $60,000,000 of undivided interests in this pool of accounts receivable had been sold. Facility fees of $723,000, $652,000, and $983,000 were recognized within interest expense during fiscal 2015, fiscal 2014 and fiscal 2013, respectively.

We maintain a multi-year revolving credit facility (the “Credit Facility”) with a group of lenders. On April 23, 2015, the Company amended the terms of the Credit Facility, increasing commitments under the facility by $75,000,000, to a total of $500,000,000, and extending the maturity by three years to April 2020. Borrowings under the Credit Facility have maturities of less than one year and given that our intention has been to repay them within a year, they have been classified as short-term borrowings within current liabilities on our consolidated balance sheets. However, we can also extend the term of amounts borrowed by renewing these borrowings for the term of the Credit Facility. We have the option to borrow at rates equal to an applicable margin over the LIBOR, Prime or Fed Funds rates. The applicable margin is determined by our credit rating and was 1.39% at May 31, 2015. Borrowings outstanding under the Credit Facility totaled $24,915,000 at May 31, 2015.

The remaining balance of short-term borrowings at May 31, 2015, consisted of $5,635,000 outstanding under a $9,500,000 credit facility maintained by our consolidated affiliate in India, Worthington Nitin Cylinders, that matured in November 2014 and bears interest at a variable rate. The applicable variable rate was 15.25% at May 31, 2015. The borrowings outstanding under the Nitin credit facility are currently in default; however, the lender has not called the note. The Company settled its portion of the obligation in June 2015.

On April 15, 2014, we issued $250,000,000 aggregate principal amount of unsecured senior notes due on April 15, 2026 (the “2026 Notes”). The 2026 Notes bear interest at a rate of 4.55%. The 2026 Notes were sold to the public at 99.789% of the principal amount thereof, to yield 4.573% to maturity. We used a portion of the net proceeds from the offering to repay borrowings then outstanding under our revolving credit facilities. Approximately $3,081,000, $2,256,000 and $528,000 of the aggregate proceeds were allocated to the settlement of a derivative contract entered into in anticipation of the issuance of the 2026 Notes, debt issuance costs, and the debt discount, respectively. The debt discount, debt issuance costs and the loss on the derivative contract were recorded on the consolidated balance sheet as of May 31, 2015, within long-term debt as a contra-liability, short- and long-term other assets and AOCI, respectively. Each will be recognized, through interest expense, in our consolidated statements of earnings over the term of the 2026 Notes. The unamortized portion of the debt issuance costs and debt discount was $1,881,000 and $476,000, respectively, at May 31, 2015.

On August 10, 2012, we issued $150,000,000 aggregate principal amount of unsecured senior notes due August 10, 2024 (the “2024 Notes”). The 2024 Notes bear interest at a rate of 4.60%. The net proceeds from this issuance were used to repay a portion of the outstanding borrowings under our multi-year revolving credit facility and amounts outstanding under our revolving trade accounts receivable securitization facility.

On April 13, 2010, we issued $150,000,000 aggregate principal amount of unsecured senior notes due on April 15, 2020 (the “2020 Notes”). The 2020 Notes bear interest at a rate of 6.50%. The 2020 Notes were sold to the public at 99.890% of the principal amount thereof, to yield 6.515% to maturity. We used the net proceeds from the offering to repay a portion of the then outstanding borrowings under our multi-year revolving credit facility and amounts then outstanding under our revolving trade accounts receivable securitization facility. Approximately $165,000, $1,535,000 and $1,358,000 of the aggregate proceeds were allocated to the debt discount, debt issuance costs, and the settlement of a derivative contract entered into in anticipation of the issuance of the 2020 Notes. The debt discount, debt issuance costs and the loss on the derivative contract were recorded on the consolidated balance sheets within long-term debt as a contra-liability, short- and long-term other assets and AOCI, respectively. Each will continue to be recognized, through interest expense, in our consolidated statements of earnings over the remaining term of the 2020 Notes. The unamortized portion of the debt issuance costs and debt discount was $582,000 and $80,000, respectively, at May 31, 2015.

On September 26, 2014, our consolidated joint venture in Turkey, Worthington Aritas, executed a $28,028,000 five-year term loan denominated in Euros. As of May 31, 2015, we had borrowed $27,013,000 against the facility. The facility bears interest at a variable rate based on EURIBOR. The applicable variable rate was 1.519% at May 31, 2015. On October 15, 2014, we entered into an interest rate swap to fix the interest rate on $16,809,000 of borrowings under this facility at 2.015% starting on December 26, 2014 through September 26, 2019. Borrowings against the facility are being used for the construction of a new cryogenics manufacturing facility in Turkey.

On April 27, 2012, we executed a $5,880,000 seven-year term loan that matures on May 1, 2019 and requires monthly payments of $76,350. The loan bears interest at a rate of 2.49% and is secured by an aircraft that was purchased with its proceeds. Borrowing outstanding totaled $3,416,000 as of May 31, 2015.

Maturities on long-term debt and short-term borrowings in the next five fiscal years, and the remaining years thereafter, are as follows:

(in thousands)
2016		91,391
2017		862
2018		6,286
2019		6,232
2020		166,207
Thereafter		400,000
Total	$	670,978

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Contingent Liabilities and Commitments - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended			21 Months Ended
	May. 31, 2014	May. 31, 2015	May. 31, 2013	May. 31, 2012	May. 31, 2015
Commitment And Contingencies [Line Items]
Exposure related to legal matter		$ 2,000,000			$ 2,000,000
Loss related to litigation settlement		2,000,000
Insurance proceeds for replacement value of damaged property and equipment		1,248			13,414,000
Book value of assets		243,000
Gain on damaged property and equipment		1,005,000
Coleman Cylinders | Minimum
Commitment And Contingencies [Line Items]
Annual royalty payments in exchange for rights		2,000,000			2,000,000
Pressure Cylinders Voluntary Product Recall
Commitment And Contingencies [Line Items]
Inventory recall expenses			$ 2,571,000	$ 9,671,000
Gain on legal dispute settlement	$ 3,951,000
Business interruption
Commitment And Contingencies [Line Items]
Insurance proceeds for replacement value of damaged property and equipment					5,521,000
Other expenses
Commitment And Contingencies [Line Items]
Insurance proceeds for replacement value of damaged property and equipment					$ 1,001,000
Manufacturing Expense | Business interruption
Commitment And Contingencies [Line Items]
Insurance proceeds for replacement value of damaged property and equipment		2,653,000
Manufacturing Expense | Other expenses
Commitment And Contingencies [Line Items]
Insurance proceeds for replacement value of damaged property and equipment		$ 256,000

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Schedule of Financial Assets And Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands		May. 31, 2015	May. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		$ 171	$ 1,284
Liabilities		26,110	4,879
Derivative Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	[1]	171	1,284
Liabilities	[1]	22,131	4,475
Contingent consideration obligation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	[2]	3,979	404
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		171	1,284
Liabilities		22,131	4,475
Significant Other Observable Inputs (Level 2) | Derivative Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	[1]	171	1,284
Liabilities	[1]	22,131	4,475
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities		3,979	404
Significant Unobservable Inputs (Level 3) | Contingent consideration obligation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	[2]	$ 3,979	$ 404

[1] The fair value of our derivative contracts is based on the present value of the expected future cash flows considering the risks involved, including non-performance risk, and using discount rates appropriate for the respective maturities. Market observable, Level 2 inputs are used to determine the present value of the expected future cash flows. Refer to "Note P - Derivative Instruments and Hedging Activities" for additional information regarding our use of derivative instruments.

[2] The fair value of the contingent consideration obligations is determined using a probability weighted cash flow approach based on management's projections of future cash flows of the acquired businesses. The fair value measurements are based on significant inputs not observable in the market and thus represent Level 3 measurements.

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Contingent Liabilities and Commitments

12 Months Ended

May. 31, 2015

Contingent Liabilities and Commitments

Note E – Contingent Liabilities and Commitments

Legal Proceedings

We are defendants in certain legal actions. In the opinion of management, the outcome of these actions, which is not clearly determinable at the present time, would not significantly affect our consolidated financial position or future results of operations. We also believe that environmental issues will not have a material effect on our capital expenditures, consolidated financial position or future results of operations.

On August 5, 2013, we tendered to our excess loss carrier, who accepted the tender, a wrongful death claim against the Company involving a MAPP gas cylinder. Pursuant to the tender and its acceptance, our overall exposure related to this matter was limited to $2,000,000. As a result, a pre-tax charge of $2,000,000 was recorded within SG&A expense during fiscal 2014.

Pressure Cylinders Voluntary Product Recall

On January 10, 2012, we announced a voluntary recall of our MAP-PRO^®, propylene and MAAP^® cylinders and related hand torch kits. The recall was precautionary in nature and involved a valve supplied by a third party that may leak when a torch or hose is disconnected from the cylinder. We incurred $9,671,000 of expenses related to the recall during fiscal 2012. Due to higher product returns than initially anticipated, we incurred additional expenses of $2,571,000 related to the recall during fiscal 2013. During the fourth quarter of fiscal 2014, we settled a legal dispute with the third party supplier, which resulted in a net gain of $3,951,000 within SG&A expense.

Royalty Agreements

In connection with the acquisition of the propane fuel cylinders business of The Coleman Company, Inc. (“Coleman Cylinders”), we executed a trademark license agreement whereby we are required to make minimum annual royalty payments of $2,000,000 in exchange for the exclusive right to use certain Coleman trademarks within the United States and Canada in connection with our operation of the acquired business.

Insurance Recoveries

On August 19, 2013, a fire occurred at our Pressure Cylinders facility in Kienberg, Austria, in the building that houses the massing process in the production of acetylene cylinders. The other portions of the Austrian facility were not damaged; however, the massing process building sustained extensive damage and was rendered inoperable. Additionally, we have incurred incremental business interruption costs. The Company has business interruption and property damage insurance and, as a result, the fire did not have a material adverse impact on the Company’s consolidated financial results.

During fiscal 2015, the Company received proceeds of $1,248,000 representing advance payments for the replacement value of damaged equipment. These proceeds were in excess of the $243,000 remaining book value of the assets, resulting in a gain of $1,005,000 within miscellaneous income.

Total proceeds received related to insurance claims since the date of loss have been as follows:

(in thousands)
Property and equipment	$	6,892
Business interruption		5,521
Other expenses		1,001
Total insurance proceeds	$	13,414

Proceeds for business interruption related to the loss of profits since the date of the fire and have been recorded as a reduction of manufacturing expense, including $2,653,000 during fiscal 2015. Proceeds for other expenses represent reimbursement for incremental expenses related to the fire and were recorded as an offset to manufacturing expense, including $256,000 during fiscal 2015. This claim was settled during the third quarter of fiscal 2015.

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Guarantees

12 Months Ended

May. 31, 2015

Guarantees

Note F – Guarantees

We do not have guarantees that we believe are reasonably likely to have a material current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources. However, as of May 31, 2015, we were party to an operating lease for an aircraft in which we have guaranteed a residual value at the termination of the lease. The maximum obligation under the terms of this guarantee was approximately $11,736,000 at May 31, 2015. We have also guaranteed the repayment of $1,667,000 outstanding under a term loan held by one of our unconsolidated affiliates, ArtiFlex. Based on current facts and circumstances, we have estimated the likelihood of payment pursuant to these guarantees, and determined that the fair value of our obligation under each guarantee based on those likely outcomes is not material.

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Comprehensive Income (Loss)

12 Months Ended

May. 31, 2015

Comprehensive Income (Loss)

Note H – Comprehensive Income (Loss)

Other Comprehensive Income:    The following table summarizes the tax effects of each component of other comprehensive income (loss) for the fiscal years ended May 31:

	2015								2014									2013
(in thousands)	Before- Tax			Tax		Net-of- Tax			Before- Tax			Tax			Net-of- Tax			Before- Tax		Tax			Net-of- Tax
Foreign currency translation	$	(34,229	)		-	$	(34,229	)	$	7,618			-		$	7,618		$	5,393		-		$	5,393
Pension liability adjustment		(5,652	)		1,914		(3,738	)		(1,555	)		511			(1,044	)		3,688		(1,415	)		2,273
Cash flow hedges		(18,605	)		6,952		(11,653	)		3,548			(1,039	)		2,509			1,461		(763	)		698
Other comprehensive income (loss)	$	(58,486	)	$	8,866	$	(49,620	)	$	9,611		$	(528	)	$	9,083		$	10,542	$	(2,178	)	$	8,364

Accumulated Other Comprehensive Loss:    The components of the changes in accumulated other comprehensive loss for the fiscal years ended May 31, 2015 were as follows:

(in thousands)	Foreign Currency Translation			Pension Liability Adjustment			Cash Flow Hedges			Accumulated Other Comprehensive Loss
Balance as of May 31, 2014	$	11,015		$	(11,265	)	$	(3,331	)	$	(3,581	)
Other comprehensive loss before reclassifications		(31,732	)		(5,979	)		(28,652	)		(66,363	)
Reclassification adjustments to income (a)		-			327			10,047			10,374
Income taxes		-			1,914			6,952			8,866
Balance as of May 31, 2015	$	(20,717	)	$	(15,003	)	$	(14,984	)	$	(50,704	)

(a) The statement of earnings classification of amounts reclassified to income for cash flow hedges is disclosed in “Note P – Derivative Instruments and Hedging Activities.”

The estimated net amount of the existing losses in AOCI at May 31, 2015 expected to be reclassified into net earnings within the succeeding twelve months is $12,619,000 (net of tax of $7,518,000). This amount was computed using the fair value of the cash flow hedges at May 31, 2015 and will change before actual reclassification from AOCI to net earnings during the fiscal year ending May 31, 2016.

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Summary of Long-term Debt and Short-term Borrowings Outstanding (Parenthetical) (Detail)			12 Months Ended
	Apr. 15, 2014	Aug. 10, 2012	May. 31, 2015	May. 31, 2014
Floating rate senior notes due December 17, 2014
Debt Instrument [Line Items]
Debt, maturity date			Dec. 17, 2014	Dec. 17, 2014
6.50% senior notes due April 15, 2020
Debt Instrument [Line Items]
Debt, interest rate			6.50%	6.50%
Debt, maturity date			Apr. 15, 2020	Apr. 15, 2020
4.60% senior notes due August 10, 2024
Debt Instrument [Line Items]
Debt, interest rate		4.60%	4.60%	4.60%
Debt, maturity date		Aug. 10, 2024	Aug. 10, 2024	Aug. 10, 2024
Unsecured Senior Notes, Four Point Five Five Percent, Due April Fifteen Twenty Twenty Six
Debt Instrument [Line Items]
Debt, interest rate	4.55%		4.55%	4.55%
Debt, maturity date	Apr. 15, 2026		Apr. 15, 2026	Apr. 15, 2026
Industrial revenue bonds due April 2019
Debt Instrument [Line Items]
Debt, maturity date (year and month)			2019-04	2019-04

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Plan Assets for Defined Benefit Plan (Detail)	May. 31, 2015	May. 31, 2014
Asset category
Weighted-average asset allocation	100.00%	100.00%
Equity Securities
Asset category
Weighted-average asset allocation	53.00%	52.00%
Debt Securities
Asset category
Weighted-average asset allocation	41.00%	44.00%
Other securities
Asset category
Weighted-average asset allocation	6.00%	4.00%

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Maturities on Long-term Debt and Short-term Borrowings (Detail) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Debt Instrument [Line Items]
2016	$ 91,391	$ 111,535
2017	862
2018	6,286
2019	6,232
2020	166,207
Thereafter	400,000
Total	$ 670,978

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Acquisitions - Additional Information (Detail) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Rome Strip Steel
Business Acquisition [Line Items]
Total consideration for acquired entity	$ 54,495,000
Business acquisition, date of acquisition agreement	Jan. 16, 2015
Cash consideration for acquired entity	$ 55,312,000
Estimated working capital deficit	817,000
DHybrid Systems Llc
Business Acquisition [Line Items]
Total consideration for acquired entity	$ 15,918,000
Business acquisition, date of acquisition agreement	Oct. 20, 2014
Cash consideration for acquired entity	$ 11,939,000
Percentage of additional interest acquired by the company	79.59%
Percent of interest owned by noncontrolling interest	20.41%
Contingent consideration estimated fair value	$ 3,979,000
Contingent consideration to be paid upon achievement of net sales and gross margin thresholds	3,979,000
Cumulative net sales threshold beginning January 1, 2013	$ 20,000,000
Gross margin threshold	50.00%
MEF
Business Acquisition [Line Items]
Business acquisition, date of acquisition agreement	Aug. 01, 2014
Cash consideration for acquired entity	$ 38,441,000
JRE
Business Acquisition [Line Items]
Business acquisition, date of acquisition agreement	Jul. 31, 2014
Cash consideration for acquired entity	$ 1,571,000
Steffes
Business Acquisition [Line Items]
Cash consideration for acquired entity	27,962,000
Worthington Aritas
Business Acquisition [Line Items]
Total consideration for acquired entity	$ 35,325,000
Business acquisition, date of acquisition agreement	Jan. 24, 2014
Percentage of additional interest acquired by the company	75.00%
Percent of interest owned by noncontrolling interest	25.00%
Contingent consideration estimated fair value	$ 404,000
Earnings before interest, taxes, depreciation and amortization	5,000,000
Written off consideration liability	404,000
Acquisition related costs		$ 1,520,000
TWB
Business Acquisition [Line Items]
Cash consideration for acquired entity	$ 17,869,000
Fair value inputs, control premium	10.00%
Net sales		319,542,000
Earnings before income taxes		22,991,000
Proforma net sales		$ 3,180,428,000	$ 2,956,309,000
TWB | Joint Venture Transactions
Business Acquisition [Line Items]
Business acquisition, date of acquisition agreement	Jul. 31, 2013
Cash consideration for acquired entity	$ 17,869,000
Percentage of additional interest acquired by the company	10.00%
Percent of controlling interest by the Company	55.00%
Previously held percentage of ownership interest	45.00%
Recognized gain from previously held equity interest	$ 11,000,000

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Summary of Long-term Debt and Short-term Borrowings Outstanding (Detail) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Debt Instrument [Line Items]
Debt	$ 670,743	$ 666,325
current maturities and short-term borrowings	91,391	111,535
Total long-term debt	579,352	554,790
Short-term borrowings
Debt Instrument [Line Items]
Debt	90,550	10,362
Floating rate senior notes due December 17, 2014
Debt Instrument [Line Items]
Debt		100,000
6.50% senior notes due April 15, 2020
Debt Instrument [Line Items]
Debt	149,920	149,912
4.60% senior notes due August 10, 2024
Debt Instrument [Line Items]
Debt	150,000	150,000
Unsecured Senior Notes, Four Point Five Five Percent, Due April Fifteen Twenty Twenty Six
Debt Instrument [Line Items]
Debt	249,524	249,472
Industrial revenue bonds due April 2019
Debt Instrument [Line Items]
Debt		2,024
Term Loan
Debt Instrument [Line Items]
Debt	30,429	4,235
Other Debt
Debt Instrument [Line Items]
Debt	$ 320	$ 320

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Summary of Tax Years Open to Examination by Major Tax Jurisdiction (Detail)	12 Months Ended
	May. 31, 2015
UNITED STATES | Federal
Income Tax Examination [Line Items]
Tax years open to examination by major jurisdiction
UNITED STATES | State and Local Jurisdiction
Income Tax Examination [Line Items]
Tax years open to examination by major jurisdiction
AUSTRIA
Income Tax Examination [Line Items]
Tax years open to examination by major jurisdiction
CANADA
Income Tax Examination [Line Items]
Tax years open to examination by major jurisdiction
Mexico
Income Tax Examination [Line Items]
Tax years open to examination by major jurisdiction

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Goodwill and Other Long-Lived Assets (Tables)

12 Months Ended

May. 31, 2015

Summary of Changes in Carrying Amount of Goodwill

The following table summarizes the changes in the carrying amount of goodwill during fiscal 2015 and fiscal 2014 by reportable business segment:

	Steel Processing		Pressure Cylinders			Engineered Cabs			Other			Total
(in thousands)
Balance at May 31, 2013
Goodwill	$	-	$	163,274		$	44,933		$	127,245		$	335,452
Accumulated impairment losses		-		-			-			(121,594	)		(121,594	)
		-		163,274			44,933			5,651			213,858
Acquisitions and purchase accounting adjustments		-		36,033			-			-			36,033
Translation adjustments		-		1,202			-			-			1,202
Balance at May 31, 2014
Goodwill		-		200,509			44,933			127,245			372,687
Accumulated impairment losses		-		-			-			(121,594	)		(121,594	)
		-		200,509			44,933			5,651			251,093
Acquisitions and purchase accounting adjustments		6,587		41,421			-			-			48,008
Divestitures		-		(1,891	)		-			-			(1,891	)
Translation adjustments		-		(13,278	)		-			-			(13,278	)
Impairment losses		-		-			(44,933	)		-			(44,933	)
		6,587		26,252			(44,933	)		-			(12,094	)
Balance at May 31, 2015
Goodwill		6,587		226,761			44,933			127,245			405,526
Accumulated impairment losses		-		-			(44,933	)		(121,594	)		(166,527	)
	$	6,587	$	226,761		$	-		$	5,651		$	238,999

Summary of Other Intangible Assets by Class

The following table summarizes other intangible assets by class as of May 31, 2015 and 2014:

	2015				2014
(in thousands)	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	12,601	$	-	$	12,601	$	-
Total indefinite-lived intangible assets		12,601		-		12,601		-
Definite-lived intangible assets:
Customer relationships	$	119,871	$	34,421	$	143,585	$	28,257
Non-compete agreements		14,221		6,897		10,733		4,263
Technology / know-how		15,633		2,350		12,068		1,273
Other		4,338		3,879		2,512		1,713
Total definite-lived intangible assets		154,063		47,547		168,898		35,506
Total intangible assets	$	166,664	$	47,547	$	181,499	$	35,506

Estimated Amortization Expense

Amortization expense for each of the next five fiscal years is estimated to be:

(in thousands)
2016	$	17,163
2017	$	16,275
2018	$	15,850
2019	$	12,731
2020	$	10,345

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Investments in Unconsolidated Affiliates - Additional Information (Detail)	12 Months Ended
	May. 31, 2015 USD ($) Entity	May. 31, 2014 USD ($) Entity	May. 31, 2013 USD ($) Entity	Oct. 18, 2013 USD ($)	Jul. 31, 2013
Investments in and Advances to Affiliates [Line Items]
Equity contribution on unconsolidated affiliates	$ 196,776,000	$ 179,113,000
Distributions from unconsolidated affiliates	78,297,000	85,346,000	$ 84,539,000
Distributions from (investments in) unconsolidated affiliate(s)	$ (8,230,000)	$ 9,223,000	$ 863,000
Number of affiliated companies | Entity	3	3	3
Consolidated retained earnings undistributed earnings net of tax	$ 17,142,000
ClarkDietrich
Investments in and Advances to Affiliates [Line Items]
Distributions from (investments in) unconsolidated affiliate(s)	570,000
WAVE
Investments in and Advances to Affiliates [Line Items]
Cumulative distributions in excess of investment	$ 61,585,000	$ 59,287,000
Joint Venture Transactions | TWB
Investments in and Advances to Affiliates [Line Items]
Percentage of additional interest acquired by the company					10.00%
Percent of controlling interest by the Company	55.00%				55.00%
Joint Venture Transactions | ArtiFlex
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates	50.00%
Joint Venture Transactions | ClarkDietrich
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates	25.00%
Joint Venture Transactions | Samuel Steel Pickling Company
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates	31.25%
Joint Venture Transactions | Seviacero
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates	50.00%
Joint Venture Transactions | WAVE
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates	50.00%
Joint Venture Transactions | Worthington Specialty Processing
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates	51.00%
Joint Venture Transactions | Zhejiang Nisshin Worthington Precision Specialty Steel Co
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates	10.00%			10.00%
Equity contribution on unconsolidated affiliates				$ 8,800,000
Total commitments on unconsolidated affiliates				$ 12,385,000
Joint Venture Transactions | Zhejiang Nisshin Worthington Precision Specialty Steel Co | Maximum
Investments in and Advances to Affiliates [Line Items]
Percent of interest by unconsolidated affiliates				34.00%

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Earnings Per Share

12 Months Ended

May. 31, 2015

Earnings Per Share

Note M – Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for the years ended May 31:

(in thousands, except per share amounts)	2015		2014		2013
Numerator (basic & diluted):
Net earnings attributable to controlling interest – income available to common shareholders	$	76,785	$	151,300	$	136,442
Denominator:
Denominator for basic earnings per share attributable to controlling interest – weighted average common shares		66,309		68,944		69,301
Effect of dilutive securities		2,174		2,720		2,013
Denominator for diluted earnings per share attributable to controlling interest – adjusted weighted average common shares		68,483		71,664		71,314
Basic earnings per share attributable to controlling interest	$	1.16	$	2.19	$	1.97
Diluted earnings per share attributable to controlling interest		1.12		2.11		1.91

Stock options covering 97,798, 7,945, and 257,667 common shares for fiscal 2015, fiscal 2014 and fiscal 2013, respectively, have been excluded from the computation of diluted earnings per share because the effect would have been anti-dilutive for those periods because the exercise price of the stock options was greater than the average market price of the common shares during the period.

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Future Minimum Lease Payments for Noncancelable Operating Lease (Detail) $ in Thousands	May. 31, 2015 USD ($)
Operating Leased Assets [Line Items]
2016	$ 9,425
2017	8,276
2018	6,931
2019	5,796
2020	4,365
Thereafter	3,684
Total	$ 38,477

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Operating Leases

12 Months Ended

May. 31, 2015

Operating Leases

Note R – Operating Leases

We lease certain property and equipment from third parties under non-cancelable operating lease agreements. Rent expense under operating leases was $17,219,000, $14,677,000 and $13,831,000 in fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Future minimum lease payments for non-cancelable operating leases having an initial or remaining term in excess of one year at May 31, 2015, were as follows:

(in thousands)
2016	$	9,425
2017		8,276
2018		6,931
2019		5,796
2020		4,365
Thereafter		3,684
Total	$	38,477

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Deferred Tax Assets and Liabilities Classified in Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred income taxes, current assets	$ 22,034	$ 24,272
Other assets, noncurrent assets	1,173	4
Deferred income taxes, noncurrent liabilities	(21,495)	(71,333)
Net deferred tax asset (liability)	$ 1,712	$ (47,057)

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Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	May. 31, 2015 USD ($) State Country JointVentures Facility Customer	May. 31, 2014 USD ($)	May. 31, 2013 USD ($)	Jul. 31, 2013
Significant Accounting Policies [Line Items]
Lower of cost or market adjustment	$ 1,716,000
Number of manufacturing facilities operated | Facility	83
Number of States operated | State	26
Number of Countries operated | Country	11
Number of joint ventures | JointVentures	13
Returns and allowances increase (decrease)	$ 626,000
Returns and Allowances	6,393,000
Allowance for doubtful accounts increase (decrease)	42,000
Receivables, allowances	3,085,000	$ 3,043,000
Depreciation Expenses	64,666,000	62,344,000	$ 56,002,000
Advertising Expenses	$ 11,153,000	$ 6,788,000	$ 6,179,000
Building and Improvements | Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful life	10 years
Building and Improvements | Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful life	40 years
Machinery and Equipment | Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful life	3 years
Machinery and Equipment | Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful life	20 years
Automotive Market | Net Sales
Significant Accounting Policies [Line Items]
Concentration risk percentage	38.00%	36.00%
Foreign Operations
Significant Accounting Policies [Line Items]
Percentage of consolidated net assets	14.00%	15.00%
Foreign Operations | Net Sales
Significant Accounting Policies [Line Items]
Concentration risk percentage	6.00%	7.00%
Foreign Operations | Pre-tax earnings
Significant Accounting Policies [Line Items]
Concentration risk percentage	(2.00%)	(2.00%)
Collective Bargaining Agreements
Significant Accounting Policies [Line Items]
Percentage of labor force	6.00%
Largest Customer
Significant Accounting Policies [Line Items]
Number of customers | Customer	10
Largest Customer | Net Sales
Significant Accounting Policies [Line Items]
Concentration risk percentage	7.00%
Ten Largest Customers | Net Sales
Significant Accounting Policies [Line Items]
Concentration risk percentage	29.00%
WRC
Significant Accounting Policies [Line Items]
Number of manufacturing facilities operated | Facility	33
Consolidated Entities
Significant Accounting Policies [Line Items]
Number of joint ventures | JointVentures	6
DHybrid Systems Llc | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	79.59%
Spartan | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	52.00%
TWB | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	55.00%			55.00%
Worthington Aritas | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	75.00%
WEI | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	75.00%
Worthington Nitin Cylinders | Joint Venture Transactions
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company	60.00%	60.00%

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Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total cash collateral	$ 2,248,000
Impact to fair value of derivative assets and liabilities as a result of recognition on a net basis	500,000	$ 730,000
Losses in accumulated other comprehensive income expected to be reclassified into net earnings	(12,619,000)
Losses in accumulated other comprehensive income expected to be reclassified into net earnings, tax	$ 7,518,000

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Income Taxes (Tables)

12 Months Ended

May. 31, 2015

Earnings before Income Taxes

Earnings before income taxes for the years ended May 31 include the following components:

(in thousands)	2015		2014		2013
United States based operations	$	104,732	$	210,783	$	190,942
Non – United States based operations		8,296		6,718		10,358
Earnings before income taxes		113,028		217,501		201,300
Less: Net earnings attributable to noncontrolling interests*		10,471		8,852		393
Earnings before income taxes attributable to controlling interest	$	102,557	$	208,649	$	200,907

* Net earnings attributable to noncontrolling interests are not taxable to Worthington.

Components of Income Tax Expense (Benefit)

Significant components of income tax expense (benefit) for the years ended May 31 were as follows:

(in thousands)	2015			2014			2013
Current
Federal	$	57,511		$	73,149		$	54,427
State and local		2,731			3,537			4,109
Foreign		5,490			6,579			4,131
		65,732			83,265			62,667
Deferred
Federal		(37,839	)		(25,453	)		4,698
State and local		(754	)		(1,194	)		(2,170	)
Foreign		(1,367	)		731			(730	)
		(39,960	)		(25,916	)		1,798
	$	25,772		$	57,349		$	64,465

Reconciliation of 35% Federal Statutory Tax Rate to Total Tax Provision

A reconciliation of the 35% federal statutory tax rate to total tax provision follows:

	2015			2014			2013
Federal statutory rate		35.0	%		35.0	%		35.0	%
State and local income taxes, net of federal tax benefit		3.0			2.0			2.3
Change in state and local valuation allowances		(1.1	)		(0.9	)		(1.3	)
Non-U.S. income taxes at other than 35%		(0.7	)		(1.0	)		(1.7	)
Change in Non-U.S. valuation allowances		1.2			1.4			1.1
Qualified production activities deduction		(5.9	)		(3.9	)		(3.0	)
Acquisition of an additional 10% interest in TWB		(0.0	)		(3.4	)		(0.0	)
Research & development credits		(0.2	)		(1.1	)		(0.1	)
Tax write off of investment in foreign subsidiary		(0.0	)		(1.1	)		(0.0	)
Benefit related to foreign tax credits		(5.3	)		(0.0	)		(0.0	)
Other		(0.9	)		0.5			(0.2	)
Effective tax rate attributable to controlling interest		25.1	%		27.5	%		32.1	%

Reconciliation of Unrecognized Tax Benefits

A tabular reconciliation of unrecognized tax benefits follows:

(In thousands)
Balance at May 31, 2014	$	4,110
Increases – tax positions taken in prior years		306
Decreases – tax positions taken in prior years		(456	)
Increases (decreases) – current tax positions		672
Settlements		(636	)
Lapse of statutes of limitations		(466	)
Balance at May 31, 2015	$	3,530

Summary of Tax Years Open to Examination by Major Tax Jurisdiction

The following is a summary of the tax years open to examination by major tax jurisdiction:

U.S. Federal – 2012 and forward

U.S. State and Local – 2010 and forward Austria – 2013 and forward

Canada – 2011 and forward

Mexico – 2009 and forward

Deferred Tax Assets and Liabilities

The components of our deferred tax assets and liabilities as of May 31 were as follows:

(in thousands)	2015			2014
Deferred tax assets
Accounts receivable	$	1,895		$	2,400
Inventories		8,051			7,210
Accrued expenses		33,678			40,873
Net operating and capital loss carry forwards		14,326			19,302
Tax credit carry forwards		3,688			203
Stock-based compensation		20,434			12,573
Derivative contracts		9,177			1,838
Other		247			541
Total deferred tax assets		91,496			84,940
Valuation allowance for deferred tax assets		(13,036	)		(21,701	)
Net deferred tax assets		78,460			63,239
Deferred tax liabilities
Property, plant and equipment		(39,433	)		(67,472	)
Undistributed earnings of unconsolidated affiliates		(35,165	)		(39,429	)
Other		(2,150	)		(3,395	)
Total deferred tax liabilities		(76,748	)		(110,296	)
Net deferred tax asset (liability)	$	1,712		$	(47,057	)

Deferred Tax Assets and Liabilities Classified in Consolidated Balance Sheet

The above amounts are classified in the consolidated balance sheets as of May 31 as follows:

(in thousands)	2015			2014
Current assets:
Deferred income taxes	$	22,034		$	24,272
Noncurrent assets:
Other assets		1,173			4
Noncurrent liabilities:
Deferred income taxes		(21,495	)		(71,333	)
Net deferred tax asset (liability)	$	1,712		$	(47,057	)

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Schedule of Summary of Derivative Hedges (Detail) - May. 31, 2015 - USD ($) $ in Thousands	Total
Commodity Contracts | Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Notional Amount	$ 33,564
Commodity Contracts | Derivatives Not Designated As Hedging Instruments | Minimum
Derivative [Line Items]
Maturity Date	2015-06
Commodity Contracts | Derivatives Not Designated As Hedging Instruments | Maximum
Derivative [Line Items]
Maturity Date	2016-11
Cash Flow Hedges | Commodity Contracts
Derivative [Line Items]
Notional Amount	$ 102,129
Cash Flow Hedges | Commodity Contracts | Minimum
Derivative [Line Items]
Maturity Date	2015-06
Cash Flow Hedges | Commodity Contracts | Maximum
Derivative [Line Items]
Maturity Date	2016-12
Cash Flow Hedges | Interest Rate Contracts
Derivative [Line Items]
Notional Amount	$ 16,809
Maturity Date	2019-09
Cash Flow Hedges | Foreign Currency Contracts
Derivative [Line Items]
Notional Amount	$ 570
Cash Flow Hedges | Foreign Currency Contracts | Maximum
Derivative [Line Items]
Maturity Date	2015-06

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Net earnings	$ 87,256	$ 160,152	$ 136,835
Other comprehensive income (loss):
Foreign currency translation	(34,229)	7,618	5,393
Pension liability adjustment, net of tax	(3,738)	(1,044)	2,273
Cash flow hedges, net of tax	(11,653)	2,509	698
Other comprehensive income (loss)	(49,620)	9,083	8,364
Comprehensive income	37,636	169,235	145,199
Comprehensive income attributable to noncontrolling interests	7,974	9,480	406
Comprehensive income attributable to controlling interest	$ 29,662	$ 159,755	$ 144,793

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Components of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Current
Federal	$ 57,511	$ 73,149	$ 54,427
State and local	2,731	3,537	4,109
Foreign	5,490	6,579	4,131
Current Income Tax Expense (Benefit), Total	65,732	83,265	62,667
Deferred
Federal	(37,839)	(25,453)	4,698
State and local	(754)	(1,194)	(2,170)
Foreign	(1,367)	731	(730)
Provision (benefit) for deferred income taxes	(39,960)	(25,916)	1,798
Income tax expense	$ 25,772	$ 57,349	$ 64,465

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Investments in Unconsolidated Affiliates

12 Months Ended

May. 31, 2015

Investments in Unconsolidated Affiliates

Note B – Investments in Unconsolidated Affiliates

At May 31, 2015, equity investments and the percentage interests owned consisted of the following (in alphabetic order): ArtiFlex Manufacturing, LLC (“ArtiFlex”) (50%), Clarkwestern Dietrich Building Systems LLC (“ClarkDietrich”) (25%), Samuel Steel Pickling Company (31.25%), Serviacero Planos, S. de R. L. de C.V. (“Serviacero”) (50%), Worthington Armstrong Venture (“WAVE”) (50%), Worthington Specialty Processing (“WSP”) (51%), and Zhejiang Nisshin Worthington Precision Specialty Steel Co., Ltd. (10%). WSP is considered to be jointly controlled and not consolidated due to substantive participating rights of the minority partner.

On October 18, 2013, we finalized an agreement with Nisshin Steel Co., Ltd. and Marubeni-Itochu Steel Inc. to form Zhejiang Nisshin Worthington Precision Specialty Steel Co., Ltd. We own a 10% interest in the joint venture with the option to increase our ownership interest to 34%. To date, we have contributed $8,800,000 of our total commitment of $12,385,000. The joint venture is in the process of constructing a plant in Zhejiang Province in the People’s Republic of China that will produce cold-rolled strip steel primarily for the automotive industry.

During the second quarter of fiscal 2014, we dissolved our wind tower joint venture, Gestamp Worthington Wind Steel, LLC, due to the volatile political environment in the United States, particularly in regards to the Federal Production Tax Credit. This event did not have a material impact on our financial position or results of operations.

On July 31, 2013, we acquired an additional 10% interest in our laser welded blank joint venture, TWB, increasing our ownership to a 55% controlling interest. Since that date, TWB’s results have been consolidated within Steel Processing versus reported in equity in net income of unconsolidated affiliates. For additional information, refer to “Note O – Acquisitions.”

We received distributions from unconsolidated affiliates totaling $78,297,000, $85,346,000, and $84,539,000 in fiscal 2015, fiscal 2014 and fiscal 2013, respectively. We have received cumulative distributions from WAVE in excess of our investment balance, which resulted in an amount recorded within other liabilities on our consolidated balance sheets of $61,585,000 and $59,287,000 at May 31, 2015 and 2014, respectively. In accordance with the applicable accounting guidance, we reclassified the negative balance to the liability section of our consolidated balance sheet. We will continue to record our equity in the net income of WAVE as a debit to the investment account, and if it becomes positive, it will again be shown as an asset on our consolidated balance sheet. If it becomes probable that any excess distribution may not be returned (upon joint venture liquidation or otherwise), we will recognize any balance classified as a liability as income immediately.

We use the “cumulative earnings” approach for determining cash flow presentation of distributions from our unconsolidated joint ventures. Distributions received are included in our consolidated statements of cash flows as operating activities, unless the cumulative distributions exceed our portion of the cumulative equity in the net earnings of the joint venture, in which case the excess distributions are deemed to be returns of the investment and are classified as investing activities in our consolidated statements of cash flows. During fiscal 2015, we received excess distributions from ClarkDietrich of $570,000.

The following table presents combined information of the financial position for the affiliated companies accounted for using the equity method as of May 31, 2015 and 2014:

(in thousands)	2015		2014
Cash	$	101,011	$	52,997
Receivable from partner (1)		11,092		12,717
Other current assets		491,507		454,417
Noncurrent assets		318,939		294,001
Total assets	$	922,549	$	814,132
Current liabilities	$	184,028	$	128,595
Short-term borrowings		-		40,992
Current maturities of long-term debt		4,489		4,510
Long-term debt		272,861		268,350
Other noncurrent liabilities		20,471		20,217
Equity		440,700		351,468
Total liabilities and equity	$	922,549	$	814,132

(1) Represents cash owed from a third-party joint venture partner as a result of centralized cash management.

The following table presents financial results of our three largest affiliated companies for fiscal 2015, fiscal 2014 and fiscal 2013. All other affiliated companies are combined and presented in the Other category.

(in thousands)	2015		2014		2013
Net sales
WAVE	$	382,451	$	382,821	$	370,702
ClarkDietrich		576,171		549,267		547,971
TWB		-		54,003		344,065
Other		551,558		506,711		490,996
Total net sales	$	1,510,180	$	1,492,802	$	1,753,734
Gross margin
WAVE	$	181,102	$	177,935	$	167,924
ClarkDietrich		65,530		73,803		75,580
TWB		-		6,109		41,116
Other		55,374		54,773		48,229
Total gross margin	$	302,006	$	312,620	$	332,849
Operating income
WAVE	$	147,603	$	144,167	$	137,202
ClarkDietrich		10,436		27,918		35,024
TWB		-		4,273		28,241
Other		35,492		37,574		30,457
Total operating income	$	193,531	$	213,932	$	230,924
Depreciation and amortization
WAVE	$	4,150	$	4,916	$	3,919
ClarkDietrich		16,638		16,253		18,173
TWB		-		880		5,123
Other		14,874		14,909		13,497
Total depreciation and amortization	$	35,662	$	36,958	$	40,712
Interest expense
WAVE	$	6,412	$	6,464	$	6,280
ClarkDietrich		138		103		3
TWB		-		-		-
Other		2,145		2,655		2,611
Total interest expense	$	8,695	$	9,222	$	8,894
Income tax expense
WAVE	$	2,539	$	3,606	$	2,451
ClarkDietrich		-		-		-
TWB		-		478		1,218
Other		7,949		5,770		3,187
Total income tax expense	$	10,488	$	9,854	$	6,856
Net earnings
WAVE	$	138,670	$	134,019	$	128,614
ClarkDietrich		11,799		27,837		35,005
TWB		-		4,023		27,931
Other		27,633		30,252		24,452
Total net earnings	$	178,102	$	196,131	$	216,002

The financial results of TWB have been included in the amounts presented in the tables above through July 31, 2013. On July 31, 2013, we completed the acquisition of an additional 10% interest in TWB. As a result, TWB’s results have been consolidated within Steel Processing since that date with the minority member’s portion of earnings eliminated within earnings attributable to noncontrolling interest.

At May 31, 2015, $17,142,000 of our consolidated retained earnings represented undistributed earnings, net of tax, of our unconsolidated affiliates.

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Schedule of Progression of Liabilities Associated with Restructuring Activities, Combined with Reconciliation to Restructuring and Other Expense (Income) (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 7,029	$ 6,229
Expense	4,589	8,713
Payments	(9,262)	(7,724)
Adjustments	185	(189)
Ending Balance	2,541	7,029	$ 6,229
Gain/loss on sale of assets	2,338	(10,589)
Less: joint venture transactions	(413)	(1,036)	604
Restructuring and other expense (income)	6,514	(2,912)	3,293
Early Retirement And Severance
Restructuring Cost and Reserve [Line Items]
Beginning Balance	6,495	5,029
Expense	3,323	6,236
Payments	(7,694)	(4,703)
Adjustments	46	(67)
Ending Balance	2,170	6,495	5,029
Facility Exit And Other Costs
Restructuring Cost and Reserve [Line Items]
Beginning Balance	534	1,200
Expense	1,266	2,477
Payments	(1,568)	(3,021)
Adjustments	139	(122)
Ending Balance	$ 371	$ 534	$ 1,200

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Other Changes in Plan Assets And Benefit Obligations Recognized in OCI (Detail) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ (4,199)	$ (2,419)
Amortization of net loss	327	290
Total recognized in other comprehensive loss	(3,872)	(2,129)
Total recognized in net periodic benefit cost and other comprehensive loss	$ (3,618)	$ (1,881)

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Schedule of Fair Value of Derivative Instruments (Detail) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Derivative [Line Items]
Asset Derivatives at Fair Value	$ 171	$ 1,284
Liability Derivatives at Fair Value		4,475
Derivatives Designated As Hedging Instruments
Derivative [Line Items]
Asset Derivatives at Fair Value	75	456
Liability Derivatives at Fair Value		4,180
Derivatives Designated As Hedging Instruments | Commodity Contracts
Derivative [Line Items]
Asset Derivatives at Fair Value		456
Liability Derivatives at Fair Value	17,833
Derivatives Designated As Hedging Instruments | Commodity Contracts | Other Liabilities
Derivative [Line Items]
Liability Derivatives at Fair Value	592
Derivatives Designated As Hedging Instruments | Commodity Contracts | Receivables
Derivative [Line Items]
Asset Derivatives at Fair Value		456
Derivatives Designated As Hedging Instruments | Commodity Contracts | Accounts Payable
Derivative [Line Items]
Liability Derivatives at Fair Value	17,241
Derivatives Designated As Hedging Instruments | Interest Rate Contracts
Derivative [Line Items]
Liability Derivatives at Fair Value	194	4,180
Derivatives Designated As Hedging Instruments | Interest Rate Contracts | Other Liabilities
Derivative [Line Items]
Liability Derivatives at Fair Value	113
Derivatives Designated As Hedging Instruments | Interest Rate Contracts | Accounts Payable
Derivative [Line Items]
Liability Derivatives at Fair Value	81	4,180
Derivatives Designated As Hedging Instruments | Foreign Exchange Contracts
Derivative [Line Items]
Liability Derivatives at Fair Value	18,027
Derivatives Designated As Hedging Instruments | Foreign Exchange Contracts | Receivables
Derivative [Line Items]
Asset Derivatives at Fair Value	75
Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Asset Derivatives at Fair Value	96	828
Liability Derivatives at Fair Value	22,131	295
Derivatives Not Designated As Hedging Instruments | Commodity Contracts
Derivative [Line Items]
Asset Derivatives at Fair Value		796
Liability Derivatives at Fair Value	4,104	295
Derivatives Not Designated As Hedging Instruments | Commodity Contracts | Receivables
Derivative [Line Items]
Asset Derivatives at Fair Value	96	796
Derivatives Not Designated As Hedging Instruments | Commodity Contracts | Accounts Payable
Derivative [Line Items]
Liability Derivatives at Fair Value	$ 4,104	295
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contracts
Derivative [Line Items]
Asset Derivatives at Fair Value		32
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contracts | Receivables
Derivative [Line Items]
Asset Derivatives at Fair Value		$ 32

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Comprehensive Income (Loss) - Additional Information (Detail)	12 Months Ended
	May. 31, 2015 USD ($)
Other Comprehensive Income (Loss) [Line Items]
Losses in accumulated other comprehensive income expected to be reclassified into net earnings	$ (12,619,000)
Losses in accumulated other comprehensive income expected to be reclassified into net earnings, tax	$ 7,518,000

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Related Party Transactions

12 Months Ended

May. 31, 2015

Related Party Transactions

Note S – Related Party Transactions

We purchase from, and sell to, affiliated companies certain raw materials and services at prevailing market prices. Net sales to affiliated companies for fiscal 2015, fiscal 2014 and fiscal 2013 totaled $32,277,000, $31,441,000, and $19,568,000, respectively. Purchases from affiliated companies for fiscal 2015, fiscal 2014 and fiscal 2013 totaled $8,021,000, $9,387,000, and $4,930,000, respectively. Accounts receivable from affiliated companies were $5,826,000 and $4,124,000 at May 31, 2015 and 2014, respectively. Accounts payable to affiliated companies were $11,528,000 and $12,716,000 at May 31, 2015 and 2014, respectively.

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Summary of Unaudited Quarterly Consolidated Results of Operations (Detail) - Entity [Domain] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended															12 Months Ended
	May. 31, 2015		Feb. 28, 2015		Nov. 30, 2014		Aug. 31, 2014		May. 31, 2014		Feb. 28, 2014	Nov. 30, 2013		Aug. 31, 2013		May. 31, 2015	May. 31, 2014	May. 31, 2013
Quarterly Financial Information [Line Items]
Net sales	$ 846,023		$ 804,785		$ 871,012		$ 862,414		$ 891,005		$ 773,230	$ 769,900		$ 692,291		$ 3,384,234	$ 3,126,426	$ 2,612,244
Gross margin	110,312		98,491		125,223		129,507		130,836		122,487	128,232		110,964		463,533	492,519	396,643
Impairment of goodwill and long-lived assets	2,344	[1]	81,600	[1]	14,235	[1]	1,950	[1]	22,871	[1]		30,734	[1]	4,641	[1]	100,129	58,246	6,488
Net earnings	30,226		(23,243)		31,455		48,820		31,248		44,211	28,340		56,353		87,256	160,152	136,835
Net earnings (loss) attributable to controlling interest	$ 28,865		$ (25,710)		$ 29,462		$ 44,168		$ 33,163		$ 40,603	$ 22,977		$ 54,557		$ 76,785	$ 151,300	$ 136,442
Earnings (loss) per share - basic	$ 0.45		$ (0.39)		$ 0.44		$ 0.65		$ 0.49		$ 0.59	$ 0.33		$ 0.78		$ 1.16	$ 2.19	$ 1.97
Earnings (loss) per share - diluted	$ 0.44		$ (0.39)		$ 0.43		$ 0.63		$ 0.47		$ 0.57	$ 0.32		$ 0.76		$ 1.12	$ 2.11	$ 1.91

[1] For additional information regarding the Company's impairment charges, refer to "Note C - Goodwill and Other Long-Lived Assets."

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Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Stock Options
Outstanding, beginning of year	4,752	5,517	7,511
Granted	97	130	1,034
Exercised	(758)	(828)	(2,858)
Forfeited	(47)	(67)	(170)
Outstanding, end of year	4,044	4,752	5,517
Exercisable at end of year	3,276	2,996	2,682
Weighted Average Exercise Price
Outstanding, beginning of year	$ 17.58	$ 17.19	$ 16.65
Granted	42.95	32.21	20.83
Exercised	17.24	17.39	17.18
Forfeited	17.00	16.13	15.86
Outstanding, end of year	18.25	17.58	17.19
Exercisable at end of year	$ 17.63	$ 17.57	$ 17.70
Weighted Average Remaining Contractual Life (in years)
Outstanding	4 years 9 months 26 days	5 years 6 months	6 years 22 days
Exercisable	4 years 5 months 1 day	4 years 8 months 1 day	4 years 6 months
Aggregate intrinsic value
Outstanding	$ 38,277	$ 107,970	$ 94,860
Exercisable	$ 31,625	$ 68,108	$ 44,752

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Comprehensive Income (Loss) (Tables)

12 Months Ended

May. 31, 2015

Summary of Tax Effects of Each Component of Other Comprehensive Income (Loss)

The following table summarizes the tax effects of each component of other comprehensive income (loss) for the fiscal years ended May 31:

	2015								2014									2013
(in thousands)	Before- Tax			Tax		Net-of- Tax			Before- Tax			Tax			Net-of- Tax			Before- Tax		Tax			Net-of- Tax
Foreign currency translation	$	(34,229	)		-	$	(34,229	)	$	7,618			-		$	7,618		$	5,393		-		$	5,393
Pension liability adjustment		(5,652	)		1,914		(3,738	)		(1,555	)		511			(1,044	)		3,688		(1,415	)		2,273
Cash flow hedges		(18,605	)		6,952		(11,653	)		3,548			(1,039	)		2,509			1,461		(763	)		698
Other comprehensive income (loss)	$	(58,486	)	$	8,866	$	(49,620	)	$	9,611		$	(528	)	$	9,083		$	10,542	$	(2,178	)	$	8,364

Components of Changes in Accumulated Other Comprehensive Loss

The components of the changes in accumulated other comprehensive loss for the fiscal years ended May 31, 2015 were as follows:

(in thousands)	Foreign Currency Translation			Pension Liability Adjustment			Cash Flow Hedges			Accumulated Other Comprehensive Loss
Balance as of May 31, 2014	$	11,015		$	(11,265	)	$	(3,331	)	$	(3,581	)
Other comprehensive loss before reclassifications		(31,732	)		(5,979	)		(28,652	)		(66,363	)
Reclassification adjustments to income (a)		-			327			10,047			10,374
Income taxes		-			1,914			6,952			8,866
Balance as of May 31, 2015	$	(20,717	)	$	(15,003	)	$	(14,984	)	$	(50,704	)

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Income Taxes

12 Months Ended

May. 31, 2015

Income Taxes

Note L – Income Taxes

Earnings before income taxes for the years ended May 31 include the following components:

(in thousands)	2015		2014		2013
United States based operations	$	104,732	$	210,783	$	190,942
Non – United States based operations		8,296		6,718		10,358
Earnings before income taxes		113,028		217,501		201,300
Less: Net earnings attributable to noncontrolling interests*		10,471		8,852		393
Earnings before income taxes attributable to controlling interest	$	102,557	$	208,649	$	200,907

* Net earnings attributable to noncontrolling interests are not taxable to Worthington.

Significant components of income tax expense (benefit) for the years ended May 31 were as follows:

(in thousands)	2015			2014			2013
Current
Federal	$	57,511		$	73,149		$	54,427
State and local		2,731			3,537			4,109
Foreign		5,490			6,579			4,131
		65,732			83,265			62,667
Deferred
Federal		(37,839	)		(25,453	)		4,698
State and local		(754	)		(1,194	)		(2,170	)
Foreign		(1,367	)		731			(730	)
		(39,960	)		(25,916	)		1,798
	$	25,772		$	57,349		$	64,465

Tax benefits related to stock-based compensation that were credited to additional paid-in capital were $6,179,000, $7,115,000, and $4,054,000 for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Tax benefits (expenses) related to defined benefit pension liability that were credited to (deducted from) other comprehensive income (“OCI”) were $1,914,000, $511,000, and $(1,415,000) for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. Tax benefits (expenses) related to cash flow hedges that were credited to (deducted from) OCI were $6,952,000, $(1,039,000), and $(763,000) for fiscal 2015, fiscal 2014 and fiscal 2013, respectively.

A reconciliation of the 35% federal statutory tax rate to total tax provision follows:

	2015			2014			2013
Federal statutory rate		35.0	%		35.0	%		35.0	%
State and local income taxes, net of federal tax benefit		3.0			2.0			2.3
Change in state and local valuation allowances		(1.1	)		(0.9	)		(1.3	)
Non-U.S. income taxes at other than 35%		(0.7	)		(1.0	)		(1.7	)
Change in Non-U.S. valuation allowances		1.2			1.4			1.1
Qualified production activities deduction		(5.9	)		(3.9	)		(3.0	)
Acquisition of an additional 10% interest in TWB		(0.0	)		(3.4	)		(0.0	)
Research & development credits		(0.2	)		(1.1	)		(0.1	)
Tax write off of investment in foreign subsidiary		(0.0	)		(1.1	)		(0.0	)
Benefit related to foreign tax credits		(5.3	)		(0.0	)		(0.0	)
Other		(0.9	)		0.5			(0.2	)
Effective tax rate attributable to controlling interest		25.1	%		27.5	%		32.1	%

The above effective tax rate attributable to controlling interest excludes any impact from the inclusion of net earnings attributable to noncontrolling interests in our consolidated statements of earnings. The effective tax rates upon inclusion of net earnings attributable to noncontrolling interests were 22.8%, 26.4% and 32.0% for fiscal 2015, fiscal 2014 and fiscal 2013, respectively. The change in effective income tax rates, upon inclusion of net earnings attributable to noncontrolling interests, is primarily a result of our Spartan, Worthington Nitin Cylinders, Worthington Aritas, and TWB consolidated joint ventures. The earnings attributable to the noncontrolling interests in Spartan and TWB’s U.S. operations do not generate tax expense to Worthington since the investors in Spartan and TWB’s U.S. operations are taxed directly based on the earnings attributable to them. The tax expense of Worthington Nitin Cylinders and Worthington Aritas, both foreign corporations, is reported in our consolidated tax expense. Since the consolidation of TWB on July 31, 2013, the tax expense of TWB’s wholly-owned foreign corporations are reported in our consolidated tax expense.

Under applicable accounting guidance, a tax benefit may be recognized from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, including resolution of any related appeals or litigation processes, based on the technical merits of the position. Any tax benefits recognized in our financial statements from such a position were measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.

The total amount of unrecognized tax benefits were $3,530,000, $4,110,000, and $3,705,000 as of May 31, 2015, 2014 and 2013, respectively. The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate attributable to controlling interest was $2,401,000 as of May 31, 2015. Unrecognized tax benefits are the differences between a tax position taken, or expected to be taken in a tax return, and the benefit recognized for accounting purposes. Accrued amounts of interest and penalties related to unrecognized tax benefits are recognized as part of income tax expense within our consolidated statements of earnings. As of May 31, 2015, 2014 and 2013, we had accrued liabilities of $947,000 $1,049,000 and $1,128,000, respectively, for interest and penalties related to unrecognized tax benefits.

A tabular reconciliation of unrecognized tax benefits follows:

(In thousands)
Balance at May 31, 2014	$	4,110
Increases – tax positions taken in prior years		306
Decreases – tax positions taken in prior years		(456	)
Increases (decreases) – current tax positions		672
Settlements		(636	)
Lapse of statutes of limitations		(466	)
Balance at May 31, 2015	$	3,530

Approximately $922,000 of the liability for unrecognized tax benefits is expected to be settled in the next twelve months due to the expiration of statutes of limitations in various tax jurisdictions and as a result of expected settlements with various tax jurisdictions. While it is expected that the amount of unrecognized tax benefits will change in the next twelve months, any change is not expected to have a material impact on our consolidated financial position, results of operations or cash flows.

The following is a summary of the tax years open to examination by major tax jurisdiction:

U.S. Federal – 2012 and forward

U.S. State and Local – 2010 and forward Austria – 2013 and forward

Canada – 2011 and forward

Mexico – 2009 and forward

Earnings before income taxes attributable to foreign sources for fiscal 2015, fiscal 2014 and fiscal 2013 were as noted above. As of May 31, 2015, and based on the tax laws in effect at that time, it remains our intention to continue to indefinitely reinvest our undistributed foreign earnings, except for the foreign earnings of our TWB joint venture and our wholly-owned Canadian subsidiary (“Canada”), which ceased operations in February 2014 as a result of the sale of the Company’s small and medium steel high pressure gas and cylinders business in North America. The decision to no longer reinvest Canada’s undistributed earnings indefinitely was made during the fourth quarter of fiscal 2014. Accordingly, no deferred tax liability has been recorded for our foreign earnings, except those that pertain to TWB and Canada. Excluding TWB and Canada, the undistributed earnings of our foreign subsidiaries at May 31, 2015 were approximately $205,000,000. If such earnings were not permanently reinvested, a deferred tax liability of approximately $13,000,000 would have been required.

The components of our deferred tax assets and liabilities as of May 31 were as follows:

(in thousands)	2015			2014
Deferred tax assets
Accounts receivable	$	1,895		$	2,400
Inventories		8,051			7,210
Accrued expenses		33,678			40,873
Net operating and capital loss carry forwards		14,326			19,302
Tax credit carry forwards		3,688			203
Stock-based compensation		20,434			12,573
Derivative contracts		9,177			1,838
Other		247			541
Total deferred tax assets		91,496			84,940
Valuation allowance for deferred tax assets		(13,036	)		(21,701	)
Net deferred tax assets		78,460			63,239
Deferred tax liabilities
Property, plant and equipment		(39,433	)		(67,472	)
Undistributed earnings of unconsolidated affiliates		(35,165	)		(39,429	)
Other		(2,150	)		(3,395	)
Total deferred tax liabilities		(76,748	)		(110,296	)
Net deferred tax asset (liability)	$	1,712		$	(47,057	)

The above amounts are classified in the consolidated balance sheets as of May 31 as follows:

(in thousands)	2015			2014
Current assets:
Deferred income taxes	$	22,034		$	24,272
Noncurrent assets:
Other assets		1,173			4
Noncurrent liabilities:
Deferred income taxes		(21,495	)		(71,333	)
Net deferred tax asset (liability)	$	1,712		$	(47,057	)

At May 31, 2015, we had tax benefits for state net operating loss carry forwards of $12,218,000 that expire from fiscal 2016 to the fiscal year ending May 31, 2035, tax benefits for foreign net operating loss carry forwards of $2,108,000 that expire from fiscal 2018 to the fiscal year ending May 31, 2035, and a tax benefit for foreign income tax credit carry forwards of $3,653,000, that expires on May 31, 2025.

The valuation allowance for deferred tax assets of $13,036,000 at May 31, 2015 is associated primarily with the net operating loss carry forwards. The valuation allowance includes $11,607,000 for state and $1,429,000 for foreign. The majority of the state valuation allowance relates to our Decatur, Alabama facility and metal framing operations in various states. The foreign valuation allowance relates to operations in Turkey. Based on our history of profitability and taxable income projections, we have determined that it is more likely than not that the remaining net deferred tax assets are otherwise realizable.

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Property, Plant and Equipment, Net by Geographic Region (Detail) - USD ($) $ in Thousands	May. 31, 2015	May. 31, 2014
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 513,190	$ 498,861
UNITED STATES
Segment Reporting Information [Line Items]
Property, plant and equipment, net	439,296	429,068
Europe
Segment Reporting Information [Line Items]
Property, plant and equipment, net	50,520	56,884
Mexico
Segment Reporting Information [Line Items]
Property, plant and equipment, net	5,030	6,314
CANADA
Segment Reporting Information [Line Items]
Property, plant and equipment, net	4,284
Other Countries
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 14,060	$ 6,595