10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

FORM 10-Q

xQuarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended March 31, 2016

OR

oTransition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission File Number 0-21719

Steel Dynamics, Inc.

(Exact name of registrant as specified in its charter)

Indiana	35-1929476
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
7575 West Jefferson Blvd, Fort Wayne, IN	46804
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code:  (260) 969-3500

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 x  No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, 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 x  No o

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 definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act).

(Check one):

Large accelerated filer x	Accelerated filer o
Non-accelerated filer o	Smaller reporting company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes o  No x

As of April 29, 2016, Registrant had 243,572,462 outstanding shares of common stock.

STEEL DYNAMICS, INC.

Table of Contents

		Page
	PART I.  Financial Information
Item 1.	Financial Statements:
	Consolidated Balance Sheets as of March 31, 2016 (unaudited) and December 31, 2015	1
	Consolidated Statements of Income for the three months ended March31, 2016 and 2015 (unaudited)	2
	Consolidated Statements of Cash Flows for the three months ended March31, 2016 and 2015 (unaudited)	3
	Notes to Consolidated Financial Statements (unaudited)	4
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	16
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	22
Item 4.	Controls and Procedures	22
	PART II. Other Information
Item 1.	Legal Proceedings	23
Item 1A.	Risk Factors	23
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	23
Item 3.	Defaults Upon Senior Securities	23
Item 4.	Mine Safety Disclosures	23
Item 5.	Other Information	23
Item 6.	Exhibits	24
	Signatures	25

STEEL DYNAMICS, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)

	March 31,			December 31,
	2016			2015
	(unaudited)
Assets
Current assets
Cash and equivalents	$	976,951		$	727,032
Accounts receivable, net	654,177			579,333
Accounts receivable-related parties	35,024			34,272
Inventories	1,066,823			1,149,390
Other current assets	41,258			47,914
Total current assets	2,774,233			2,537,941
Property, plant and equipment, net	2,914,186			2,951,210
Restricted cash	19,603			19,565
Intangible assets, net	272,528			278,960
Goodwill	395,872			397,470
Other assets	15,220			16,936
Total assets	$	6,391,642		$	6,202,082
Liabilities and Equity
Current liabilities
Accounts payable	$	407,405		$	276,725
Accounts payable-related parties	6,170			6,630
Income taxes payable	9,960			2,023
Accrued payroll and benefits	81,246			94,906
Accrued interest	47,928			38,502
Accrued expenses	97,567			99,824
Current maturities of long-term debt	22,770			16,680
Total current liabilities	673,046			535,290
Long-term debt	2,575,528			2,577,976
Deferred income taxes	416,260			400,770
Other liabilities	19,302			16,595
Commitments and contingencies
Redeemable noncontrolling interests	126,340			126,340
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 263,142,777, and 262,937,139 shares issued; and 243,500,764, and 243,089,514 shares outstanding, as of March 31, 2016 and December 31, 2015, respectively	639			638
Treasury stock, at cost; 19,642,013, and 19,847,625 shares, as of March 31, 2016 and December 31, 2015, respectively	(392,348		)	(396,455		)
Additional paid-in capital	1,115,008			1,110,253
Retained earnings	1,993,910			1,965,291
Total Steel Dynamics, Inc. equity	2,717,209			2,679,727
Noncontrolling interests	(136,043		)	(134,616		)
Total equity	2,581,166			2,545,111
Total liabilities and equity	$	6,391,642		$	6,202,082

See notes to consolidated financial statements.

1

STEEL DYNAMICS, INC.

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

(in thousands, except per share data)

	Three Months Ended
	March 31,
	2016			2015
Net sales
Unrelated parties	$	1,698,004		$	2,003,973
Related parties	43,297			43,462
Total net sales	1,741,301			2,047,435
Costs of goods sold	1,505,265			1,860,393
Gross profit	236,036			187,042
Selling, general and administrative expenses	87,530			76,350
Profit sharing	9,291			4,598
Amortization of intangible assets	7,250			6,323
Operating income	131,965			99,771
Interest expense, net of capitalized interest	37,043			43,087
Other (income) expense, net	(1,792		)	16,192
Income before income taxes	96,714			40,492
Income tax expense	35,396			13,538
Net income	61,318			26,954
Net loss attributable to noncontrolling interests	1,419			3,807
Net income attributable to Steel Dynamics, Inc.	$	62,737		$	30,761
Basic earnings per share attributable to Steel Dynamics, Inc. stockholders	$	0.26		$	0.13
Weighted average common shares outstanding	243,202			241,535
Diluted earnings per share attributable to Steel Dynamics, Inc. stockholders, including the effect of assumed conversions when dilutive	$	0.26		$	0.13
Weighted average common shares and share equivalents outstanding	244,608			242,867
Dividends declared per share	$	0.1400		$	0.1375

See notes to consolidated financial statements.

2

STEEL DYNAMICS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

(in thousands)

	Three Months Ended
	March 31,
	2016			2015
Operating activities:
Net income	$	61,318		$	26,954
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	73,985			72,822
Equity-based compensation	8,405			8,543
Deferred income taxes	17,087			16,717
(Gain) loss on disposal of assets	(18		)	4,985
Changes in certain assets and liabilities:
Accounts receivable	(75,596		)	133,084
Inventories	82,567			164,999
Other assets	746			4,508
Accounts payable	112,659			(127,053		)
Income taxes receivable/payable	13,993			16,265
Accrued expenses	(6,247		)	(87,117		)
Net cash provided by operating activities	288,899			234,707
Investing activities:
Purchases of property, plant and equipment	(27,708		)	(33,351		)
Other investing activities	3,054			1,663
Net cash used in investing activities	(24,654		)	(31,688		)
Financing activities:
Issuance of current and long-term debt	20,452			50,093
Repayment of current and long-term debt	(4,232		)	(427,451		)
Debt issuance costs	(5		)	—
Proceeds from exercise of stock options, including related tax effect	2,892			1,753
Contributions from noncontrolling investors, net	(8		)	(29		)
Dividends paid	(33,425		)	(27,766		)
Net cash used in financing activities	(14,326		)	(403,400		)
Increase (decrease) in cash and equivalents	249,919			(200,381		)
Cash and equivalents at beginning of period	727,032			361,363
Cash and equivalents at end of period	$	976,951		$	160,982
Supplemental disclosure information:
Cash paid for interest	$	26,286		$	40,094
Cash paid (received) for federal and state income taxes, net	$	699		$	(18,539	)

See notes to consolidated financial statements.

3

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 1.  Description of the Business and Significant Accounting Policies

Description of the Business

Steel Dynamics, Inc. (SDI), together with its subsidiaries (the company), is a domestic manufacturer of steel products and metals recycler. The company has three report segments, consistent with how it currently manages the business, representing three reporting segments: steel operations, metals recycling operations, and steel fabrication operations.

Steel Operations Segment.  Steel operations include the company’s Butler Flat Roll Division, Columbus Flat Roll Division, The Techs galvanizing lines, Structural and Rail Division, Engineered Bar Products Division, Roanoke Bar Division, Steel of West Virginia, and  Iron Dynamics (IDI), a liquid pig iron (scrap substitute) production facility that supplies solely the Butler Flat Roll Division. These operations include electric arc furnace steel mills, producing steel from ferrous scrap and scrap substitutes, utilizing continuous casting, automated rolling mills, and ten downstream coating facilities. Steel operations accounted for 70% and 68% of the company’s consolidated external net sales during the three-month periods ended March 31, 2016 and 2015.

Metals Recycling Operations Segment. Metals recycling operations include the company’s metals recycling processing locations, and ferrous scrap procurement operations, of OmniSource Corporation (OmniSource). Metals recycling operations accounted for 15% and 21% of the company’s consolidated external net sales during the three-month periods ended March 31, 2016, and 2015, respectively.

Steel Fabrication Operations Segment.  Steel fabrication operations include the company’s eight New Millennium Building Systems’ joist and deck plants located throughout the United States and Northern Mexico. Revenues from these plants are generated from the fabrication of trusses, girders, steel joists and steel deck used within the non-residential construction industry. Steel fabrication operations accounted for approximately 10% and 8% of the company’s consolidated external net sales during the three-month periods ended March 31, 2016, and 2015, respectively.

Other. The “Other” category consists of subsidiary operations that are below the quantitative thresholds required for reportable segments and primarily consist of our Minnesota ironmaking operations that were indefinitely idled in May 2015, and several smaller joint ventures. Also included in “Other” are certain unallocated corporate accounts, such as the company’s senior secured credit facility, senior notes, certain other investments and certain profit sharing expenses.

Significant Accounting Policies

Principles of Consolidation. The consolidated financial statements include the accounts of SDI, together with its wholly and majority-owned or controlled subsidiaries, after elimination of significant intercompany accounts and transactions. Noncontrolling interests represent the noncontrolling owner’s proportionate share in the equity, income, or losses of the company’s majority-owned or controlled consolidated subsidiaries.

Use of Estimates.  These financial statements are prepared in conformity with accounting principles generally accepted in the United States, and accordingly, include amounts that require management to make estimates and assumptions that affect the amounts reported in the financial statements and in the notes thereto. Significant items subject to such estimates and assumptions include the carrying value of property, plant and equipment, intangible assets, and goodwill; valuation allowances for trade receivables, inventories and deferred income tax assets; unrecognized tax benefits; potential environmental liabilities; and litigation claims and settlements. Actual results may differ from these estimates and assumptions.

In the opinion of management, these financial statements reflect all normal recurring adjustments necessary for a fair presentation of the interim period results. These financial statements and notes should be read in conjunction with the audited financial statements and notes thereto included in the company’s Annual Report on Form 10-K for the year ended December 31, 2015.

4

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 1.  Description of the Business and Significant Accounting Policies (Continued)

Goodwill.  The company’s goodwill is allocated to the following reporting units at March 31, 2016, and December 31, 2015, (in thousands):

		March 31,		December 31,
		2016		2015
Metals Recycling Segment:	OmniSource	$	107,441	$	109,039
	Butler Flat Roll Division, Structural and Rail Division, and Engineered Bar Division	95,000		95,000
Steel Segment:	The Techs	142,783		142,783
	Roanoke Bar Division	29,041		29,041
	Columbus Flat Roll Division	19,682		19,682
Fabrication Segment:	New Millennium Building Systems	1,925		1,925
		$	395,872	$	397,470

OmniSource goodwill decreased $1.6 million from December 31, 2015 to March 31, 2016, in recognition of the 2016 tax benefit related to the normal amortization of the component of OmniSource tax-deductible goodwill in excess of book goodwill.

Recently Issued Accounting Standards

In May 2014, the FASB issued guidance codified in ASC 606, Revenue Recognition — Revenue from Contracts with Customers, which amends the guidance in former ASC 605, Revenue Recognition.  The core principle of ASC 606 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Because the guidance in ASC 606 is principles-based, it can be applied to all contracts with customers regardless of industry-specific or transaction-specific fact patterns. Additionally, ASC 606 requires additional disclosures to help users of financial statements better understand the nature, amount, timing, and potential uncertainty of revenue that is recognized. This guidance is effective for annual and interim periods beginning after December 15, 2017, but can be early adopted for annual and interim periods ending after December 15, 2016. The company is currently evaluating the impact of the provisions of ASC 606, including the timing and method of adoption.

In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements — Going Concern (Subtopic 205-40: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern), effective for annual and interim periods ending after December 15, 2016. ASU 2014-15 requires management to evaluate whether there are conditions or events, considered in aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued. There are required disclosures if principal conditions or events are identified that raised substantial doubt about the entity’s ability to continue as a going concern (before consideration of management’s plans), as well as management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations, and management’s plans that alleviated substantial doubt about the entity’s ability to continue as a going concern. This ASU is not expected to have any impact on our overall results of operations, financial position or cash flows.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory, which requires an entity to measure inventory at the lower of cost and net realizable value, rather than at the lower of cost or market.  This new guidance is effective for annual and interim periods beginning after December 15, 2016, but can be early adopted. The company is currently evaluating the impact of this ASU’s adoption.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842): which establishes a new lease accounting model that requires lessees to recognize a right of use asset and related lease liability for most leases having lease terms of more than 12 months.  Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases.  This new guidance is effective for annual and interim periods beginning after December 15, 2018, but can be early adopted.  The company is currently evaluating the impact of the provisions of ASU 2016-02, including the timing of adoption.

5

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 2.  Earnings Per Share

Basic earnings per share is based on the weighted average shares of common stock outstanding during the period. Diluted earnings per share assumes the weighted average dilutive effect of common share equivalents outstanding during the period applied to the company’s basic earnings per share. Common share equivalents represent potentially dilutive stock options, restricted stock units and deferred stock units; and are excluded from the computation in periods in which they have an anti-dilutive effect. There were no anti-dilutive common share equivalents at or for the three months ended March 31, 2016, and 2015.

The following table presents a reconciliation of the numerators and the denominators of the company’s basic and diluted earnings per share computations for the three month periods ended March 31, 2016, and 2015 (in thousands, except per share data):

	Three Months Ended March 31,
	2016					2015
	Net Income (Numerator)		Shares (Denominator)	Per Share Amount		Net Income (Numerator)		Shares (Denominator)	Per Share Amount
Basic earnings per share	$	62,737	243,202	$	0.26	$	30,761	241,535	$	0.13
Dilutive common share equivalents	—		1,406			—		1,332
Diluted earnings per share	$	62,737	244,608	$	0.26	$	30,761	242,867	$	0.13

Note 3.  Inventories

Inventories are stated at lower of cost or market. Cost is determined using a weighted average cost method for scrap, and on a first-in, first-out, basis for other inventory. Inventory consisted of the following (in thousands):

	March 31,		December 31,
	2016		2015
Raw materials	$	353,681	$	419,608
Supplies	390,362		396,349
Work in progress	88,139		90,486
Finished goods	234,641		242,947
Total inventories	$	1,066,823	$	1,149,390

Note 4.  Debt

On March 16, 2015, the company called and repaid all $350.0 million of its outstanding 7 5/8% Senior Notes due 2020 (the “Notes”) at a redemption price of 103.813% of the principal amount of the Notes, plus accrued and unpaid interest to, but not including, the date of redemption. Associated premiums and the write off of deferred financing costs of approximately $16.7 million were recorded in other expense in conjunction with the redemption.

Note 5.  Changes in Equity

The following table provides a reconciliation of the beginning and ending carrying amounts of total equity, equity attributable to stockholders of Steel Dynamics, Inc. and equity and redeemable amounts attributable to the noncontrolling interests (in thousands):

	Stockholders of Steel Dynamics, Inc.
	Common		Additional Paid-In		Retained			Treasury			Noncontrolling			Total			Redeemable Noncontrolling
	Stock		Capital		Earnings			Stock			Interests			Equity			Interests
Balances at December  31, 2015	$	638	$	1,110,253	$	1,965,291		$	(396,455	)	$	(134,616	)	$	2,545,111		$	126,340
Exercise of stock options proceeds, including related tax effect	1		2,892		—			—			—			2,893			—
Dividends declared	—		—		(34,090		)	—			—			(34,090		)	—
Distributions to noncontrolling investors, net	—		—		—			—			(8		)	(8		)	—
Equity-based compensation	—		1,863		(28		)	4,107			—			5,942			—
Comprehensive and net income (loss)	—		—		62,737			—			(1,419		)	61,318			—
Balances at March  31, 2016	$	639	$	1,115,008	$	1,993,910		$	(392,348	)	$	(136,043	)	$	2,581,166		$	126,340

6

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 6.  Derivative Financial Instruments

The company is exposed to certain risks relating to its ongoing business operations. The company utilizes derivative instruments to mitigate interest rate risk, foreign currency exchange rate risk, and commodity margin risk. The company routinely enters into forward exchange traded futures and option contracts to manage the price risk associated with nonferrous metals inventory as well as purchases and sales of nonferrous metals (specifically aluminum, copper, and silver).  The company offsets fair value amounts recognized for derivative instruments executed with the same counterparty under master netting agreements.

Commodity Futures Contracts.  If the company is “long” on futures contracts, it means the company has more futures contracts purchased than futures contracts sold for the underlying commodity. If the company is “short” on a futures contract, it means the company has more futures contracts sold than futures contracts purchased for the underlying commodity. The following summarizes the company’s futures contract commitments as of March 31, 2016 (MT represents metric tons and Lbs represents pounds):

Commodity Futures	Long/Short	Total
Aluminum	Long	3,075	MT
Aluminum	Short	1,125	MT
Copper	Long	8,736	MT
Copper	Short	11,796	MT
Silver	Short	343	Lbs

The following summarizes the location and amounts of the fair values reported on the company’s balance sheets as of March 31, 2016, and December 31, 2015, and gains and losses related to derivatives included in the company’s statement of income for the three months ended March 31, 2016, and 2015 (in thousands):

	Asset Derivatives					Liability Derivatives
		Fair Value				Fair Value
	Balance sheet location	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Derivative instruments designated as fair value hedges -
Commodity futures	Other current assets	$	890	$	857	$	1,945	$	2,860
Derivative instruments not designated as hedges -
Commodity futures	Other current assets	752		908		1,232		1,065
Total derivative instruments		$	1,642	$	1,765	$	3,177	$	3,925

The fair value of the above derivative instruments, along with required margin deposit amounts with the same counterparty under master netting arrangements, which totaled $2.5 million at March 31, 2016, and $3.4 million at December 31, 2015, are reflected in other current assets in the consolidated balance sheet.

		Amount of gain (loss)								Amount of gain (loss)
		recognized in income on								recognized in income on
	Location of gain	derivatives for the three							Location of gain	related hedged items for
	(loss) recognized	months ended						Hedged items	(loss) recognized	the three months ended
	in income on	March 31,			March 31,			in fair value	in income on	March 31,			March 31,
	derivatives	2016			2015			hedge	derivatives	2016			2015
Derivatives in fair value hedging relationships -
Commodity futures	Costs of goods sold	$	932		$	(4,313	)	Firm commitments	Costs of goods sold	$	(1,222	)	$	494
								Inventory	Costs of goods sold	278			2,656
										$	(944	)	$	3,150
Derivatives not designated as hedging instruments -
Commodity futures	Costs of goods sold	$	(872	)	$	6,996

7

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 6.  Derivative Financial Instruments (Continued)

Derivatives accounted for as fair value hedges had ineffectiveness resulting in losses of $45,000 for the three-month period ending March 31, 2016 and gains of $107,000 during the three-month period ended March 31, 2015.  Gains excluded from hedge effectiveness testing of $32,000 decreased costs of goods sold during the three-month period ending March 31, 2016 and losses excluded from hedge effectiveness testing of $1.3 million increased costs of goods sold during the three-month periods ended March 31, 2015.

Note 7.  Fair Value Measurements

FASB accounting standards provide a comprehensive framework for measuring fair value and sets forth a definition of fair value and establishes a hierarchy prioritizing the inputs to valuation techniques, giving the highest priority to quoted prices in active markets for identical assets and liabilities and the lowest priority to unobservable value inputs.  Levels within the hierarchy are defined as follows:

·Level 1—Unadjusted quoted prices for identical assets and liabilities in active markets;

·Level 2—Quoted prices for similar assets and liabilities in active markets (other than those included in Level 1) which are observable for the asset or liability, either directly or indirectly; and

·Level 3—Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

The following table sets forth financial assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheet and the respective levels to which the fair value measurements are classified within the fair value hierarchy as of March 31, 2016, and December 31, 2015 (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
March 31, 2016
Commodity futures — financial assets	$	1,642	$	—	$	1,642	$	—
Commodity futures — financial liabilities	3,177		—		3,177		—
December 31, 2015
Commodity futures — financial assets	$	1,765	$	—	$	1,765	$	—
Commodity futures — financial liabilities	3,925		—		3,925		—

The carrying amounts of financial instruments including cash and equivalents approximate fair value. The fair values of commodity futures contracts are estimated by the use of quoted market prices, estimates obtained from brokers, and other appropriate valuation techniques based on references available. The fair value of long-term debt, including current maturities, as determined by quoted market prices (Level 2), was approximately $2.6 billion and $2.5 billion (with a corresponding carrying amount in the consolidated balance sheets of $2.6 billion and $2.6 billion) at March 31, 2016, and December 31, 2015, respectively.

8

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 8.  Commitments and Contingencies

The company is involved, along with two other remaining steel manufacturing company defendants, in a class action antitrust suit in federal court in Chicago, Illinois, originally against eight companies. The Complaint alleges a conspiracy on the part of the original defendants to fix, raise, maintain and stabilize the price at which steel products were sold in the United States during a specified period between 2005 and 2007, by artificially restricting the supply of such steel products. All but one of the Complaints were brought on behalf of a purported class consisting of all direct purchasers of steel products. The other Complaint was brought on behalf of a purported class consisting of all indirect purchasers of steel products within the same time period.  In addition, another similar complaint was filed in December 2010 purporting to be on behalf of indirect purchasers of steel products in Tennessee. All Complaints have been consolidated in the Chicago action and seek treble damages and costs, including reasonable attorney fees, pre- and post-judgment interest and injunctive relief. Following an extensive period of discovery and related motions concerning class certification matters, the Court, on September 9, 2015, certified a class, limited, however, to the issue of the alleged conspiracy alone, and denied class certification on the issue of antitrust impact and damages.  As a result, some additional discovery is ongoing. The company has also filed a motion for summary judgment, as has co-defendant SSAB, and this matter is currently pending.

Due, however, to the uncertain nature of litigation, the company cannot presently determine the ultimate outcome of this litigation. Based on the information available at this time, the company has determined that there is not presently a “reasonable possibility” (as that term is defined in ASC 450-20-20), that the outcome of these legal proceedings would have a material impact on the Company’s financial condition, results of operations, or liquidity. Although not presently necessary or appropriate to make a dollar estimate of exposure to loss, if any, in connection with the above matter, the company may in the future determine that a loss accrual is necessary. Although the company may make loss accruals, if and as warranted, any amounts that it may accrue from time to time could vary significantly from the amounts it actually pays, due to inherent uncertainties and the inherent shortcomings of the estimation process, the uncertainties involved in litigation and other factors. Additionally, an adverse result could have a material effect on the company’s financial condition, results of operations and liquidity.

The company is involved in various routine litigation matters, including administrative proceedings, regulatory proceedings, governmental investigations, environmental matters, and commercial and construction contract disputes, none of which are expected to have a material impact on our financial condition, results of operations, or liquidity.

9

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 9.  Segment Information

The company’s operations are primarily organized and managed by operating segment, which are steel operations, metals recycling operations, and steel fabrication operations. The segment operations are more fully described in Note 1 to the financial statements. Operating segment performance and resource allocations are primarily based on operating results before income taxes. The accounting policies of the reportable segments are consistent with those described in Note 1 to the financial statements. Intra-segment sales and any related profits are eliminated in consolidation. Amounts included in the category “Other” are from subsidiary operations that are below the quantitative thresholds required for reportable segments.  In addition, “Other” also includes certain unallocated corporate accounts, such as the company’s senior secured credit facility, senior notes, certain other investments and certain profit sharing expenses.

The company’s segment results for the three months ended March 31, 2016, and 2015, each adjusted consistent with our current reportable segments presentation, are as follows (in thousands):

For the three months ended			Metals Recycling			Steel Fabrication
March 31, 2016	Steel Operations		Operations			Operations		Other			Eliminations			Consolidated
Net Sales
External	$	1,156,969	$	236,757		$	180,041	$	74,626		$	—		$	1,648,393
External Non-U.S.	60,207		32,650			14		37			—			92,908
Other segments	41,212		217,778			26		1,226			(260,242		)	—
	1,258,388		487,185			180,081		75,889			(260,242		)	1,741,301
Operating income (loss)	132,275		2,767			32,016		(31,930		)(1)	(3,163		)(2)	131,965
Income (loss) before income taxes	109,375		(223		)	30,016		(39,291		)	(3,163		)	96,714
Depreciation and amortization	52,483		14,580			2,821		4,152			(51		)	73,985
Capital expenditures	23,904		3,080			604		120			—			27,708
As of March 31, 2016
Assets	$	3,836,481	$	1,048,643		$	315,659	$	1,295,859	(3)	$	(105,000	)(4)	$	6,391,642

Footnotes related to the three months ended March 31, 2016 segment results (in millions):

(1)	Corporate SG&A	$	(11.1	)
	Company-wide equity-based compensation	(7.0		)
	Profit sharing	(8.2		)
	Minnesota ironmaking operations	(4.3		)
	Other, net	(1.3		)
		$	(31.9	)
(2)	Gross profit decrease from intra-company sales	$	(3.2	)
(3)	Cash and equivalents	$	895.4
	Accounts receivable	22.7
	Inventories	30.2
	Property, plant and equipment, net	302.6
	Intra-company debt	6.8
	Other	38.2
		$	1,295.9
(4)	Elimination of intra-company receivables	$	(91.6	)
	Elimination of intra-company debt	(6.8		)
	Other	(6.6		)
		$	(105.0	)

10

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 9.  Segment Information (Continued)

For the three months ended			Metals Recycling			Steel Fabrication
March 31, 2015	Steel Operations		Operations			Operations		Other			Eliminations			Consolidated
Net Sales
External	$	1,313,426	$	374,292		$	161,024	$	75,232		$	—		$	1,923,974
External Non-U.S.	71,993		51,303			—		165			—			123,461
Other segments	48,903		226,416			4		18,203			(293,526		)	—
	1,434,322		652,011			161,028		93,600			(293,526		)	2,047,435
Operating income (loss)	114,965		(4,498		)	21,361		(35,902		)(1)	3,845		(2)	99,771
Income (loss) before income taxes	89,331		(10,536		)	19,594		(61,742		)	3,845			40,492
Depreciation and amortization	50,970		17,280			2,230		2,393			(51		)	72,822
Capital expenditures	16,200		6,415			1,037		9,699			—			33,351

Footnotes related to the three months ended March 31, 2015 segment results (in millions):

(1)	Corporate SG&A	$	(9.4	)
	Company-wide equity-based compensation	(5.9		)
	Profit sharing	(3.5		)
	Minnesota ironmaking operations	(13.0		)
	Other, net	(4.1		)
		$	(35.9	)
(2)	Gross profit increase from intra-company sales	$	3.8

11

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 10.  Condensed Consolidating Information

Certain 100%-owned subsidiaries of SDI have fully and unconditionally guaranteed all of the indebtedness relating to the issuance of the company’s senior unsecured notes due 2019, 2021, 2022, 2023 and 2024. Following are the company’s condensed consolidating financial statements, including the guarantors, which present the financial position, results of operations, and cash flows of (i) SDI (in each case, reflecting investments in its consolidated subsidiaries under the equity method of accounting), (ii) the guarantor subsidiaries of SDI, (iii) the non-guarantor subsidiaries of SDI, and (iv) the eliminations necessary to arrive at the information on a consolidated basis. The following statements should be read in conjunction with the accompanying consolidated financial statements and the company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Condensed Consolidating Balance Sheets (in thousands)

						Combined			Consolidating			Total
As of March 31, 2016	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Cash and equivalents	$	887,690		$	75,082	$	14,179		$	—		$	976,951
Accounts receivable, net	219,883			1,128,020		32,979			(691,681		)	689,201
Inventories	516,467			518,657		34,105			(2,406		)	1,066,823
Other current assets	19,602			20,902		2,128			(1,374		)	41,258
Total current assets	1,643,642			1,742,661		83,391			(695,461		)	2,774,233
Property, plant and equipment, net	948,732			1,677,310		290,103			(1,959		)	2,914,186
Intangible assets, net	—			272,528		—			—			272,528
Goodwill	—			395,872		—			—			395,872
Other assets, including investments in subs	2,778,142			10,003		6,128			(2,759,450		)	34,823
Total assets	$	5,370,516		$	4,098,374	$	379,622		$	(3,456,870	)	$	6,391,642
Accounts payable	$	138,423		$	281,926	$	66,679		$	(73,453	)	$	413,575
Accrued expenses	146,230			185,090		4,590			(99,209		)	236,701
Current maturities of long-term debt	13,134			700		34,034			(25,098		)	22,770
Total current liabilities	297,787			467,716		105,303			(197,760		)	673,046
Long-term debt	2,544,789			—		171,390			(140,651		)	2,575,528
Other liabilities	(189,269		)	1,173,238		70,280			(618,687		)	435,562
Redeemable noncontrolling interests	—			—		126,340			—			126,340
Common stock	639			1,727,859		18,120			(1,745,979		)	639
Treasury stock	(392,348		)	—		—			—			(392,348		)
Additional paid-in-capital	1,115,008			117,737		653,787			(771,524		)	1,115,008
Retained earnings (deficit)	1,993,910			611,824		(629,555		)	17,731			1,993,910
Total Steel Dynamics, Inc. equity	2,717,209			2,457,420		42,352			(2,499,772		)	2,717,209
Noncontrolling interests	—			—		(136,043		)	—			(136,043		)
Total equity	2,717,209			2,457,420		(93,691		)	(2,499,772		)	2,581,166
Total liabilities and equity	$	5,370,516		$	4,098,374	$	379,622		$	(3,456,870	)	$	6,391,642

12

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 10.  Condensed Consolidating Information (Continued)

Condensed Consolidating Balance Sheets (in thousands)

						Combined			Consolidating			Total
As of December 31, 2015	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Cash and equivalents	$	636,877		$	81,976	$	8,179		$	—		$	727,032
Accounts receivable, net	200,094			1,056,285		29,775			(672,549		)	613,605
Inventories	539,963			573,924		35,004			499			1,149,390
Other current assets	21,654			25,415		1,676			(831		)	47,914
Total current assets	1,398,588			1,737,600		74,634			(672,881		)	2,537,941
Property, plant and equipment, net	958,212			1,703,932		291,077			(2,011		)	2,951,210
Intangible assets, net	—			278,960		—			—			278,960
Goodwill	—			397,470		—			—			397,470
Other assets, including investments in subs	2,941,710			10,040		6,137			(2,921,386		)	36,501
Total assets	$	5,298,510		$	4,128,002	$	371,848		$	(3,596,278	)	$	6,202,082
Accounts payable	$	100,751		$	183,344	$	68,948		$	(69,688	)	$	283,355
Accrued expenses	141,552			185,873		4,779			(96,949		)	235,255
Current maturities of long-term debt	13,122			700		24,975			(22,117		)	16,680
Total current liabilities	255,425			369,917		98,702			(188,754		)	535,290
Long-term debt	2,546,606			361		177,897			(146,888		)	2,577,976
Other liabilities	(183,248		)	1,342,541		63,020			(804,948		)	417,365
Redeemable noncontrolling interests	—			—		126,340			—			126,340
Common stock	638			1,727,859		18,120			(1,745,979		)	638
Treasury stock	(396,455		)	—		—			—			(396,455		)
Additional paid-in-capital	1,110,253			117,737		646,787			(764,524		)	1,110,253
Retained earnings (deficit)	1,965,291			569,587		(624,402		)	54,815			1,965,291
Total Steel Dynamics, Inc. equity	2,679,727			2,415,183		40,505			(2,455,688		)	2,679,727
Noncontrolling interests	—			—		(134,616		)	—			(134,616		)
Total equity	2,679,727			2,415,183		(94,111		)	(2,455,688		)	2,545,111
Total liabilities and equity	$	5,298,510		$	4,128,002	$	371,848		$	(3,596,278	)	$	6,202,082

13

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 10.  Condensed Consolidating Information (Continued)

Condensed Consolidating Statements of Operations (in thousands)

For the three months ended,						Combined			Consolidating			Total
March 31, 2016	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Net sales	$	657,814		$	1,857,344	$	85,740		$	(859,597	)	$	1,741,301
Costs of goods sold	548,179			1,701,821		91,030			(835,765		)	1,505,265
Gross profit (loss)	109,635			155,523		(5,290		)	(23,832		)	236,036
Selling, general and administrative	38,602			67,200		2,802			(4,533		)	104,071
Operating income (loss)	71,033			88,323		(8,092		)	(19,299		)	131,965
Interest expense, net of capitalized interest	18,187			18,400		2,260			(1,804		)	37,043
Other (income) expense, net	(2,208		)	2,190		(3,578		)	1,804			(1,792		)
Income (loss) before income taxes and equity in net loss of subsidiaries	55,054			67,733		(6,774		)	(19,299		)	96,714
Income taxes (benefit)	17,268			25,495		(271		)	(7,096		)	35,396
	37,786			42,238		(6,503		)	(12,203		)	61,318
Equity in net loss of subsidiaries	24,951			—		—			(24,951		)	—
Net loss attributable to noncontrolling interests	—			—		1,419			—			1,419
Net income (loss) attributable to Steel Dynamics, Inc.	$	62,737		$	42,238	$	(5,084	)	$	(37,154	)	$	62,737

For the three months ended,						Combined			Consolidating			Total
March 31, 2015	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Net sales	$	798,718		$	2,191,009	$	104,573		$	(1,046,865	)	$	2,047,435
Costs of goods sold	693,575			2,072,125		118,781			(1,024,088		)	1,860,393
Gross profit (loss)	105,143			118,884		(14,208		)	(22,777		)	187,042
Selling, general and administrative	30,743			58,033		3,365			(4,870		)	87,271
Operating income (loss)	74,400			60,851		(17,573		)	(17,907		)	99,771
Interest expense, net of capitalized interest	20,537			21,840		1,734			(1,024		)	43,087
Other (income) expense, net	15,652			688		(1,172		)	1,024			16,192
Income (loss) before income taxes and equity in net loss of subsidiaries	38,211			38,323		(18,135		)	(17,907		)	40,492
Income taxes (benefit)	6,941			13,034		(1,116		)	(5,321		)	13,538
	31,270			25,289		(17,019		)	(12,586		)	26,954
Equity in net loss of subsidiaries	(509		)	—		—			509			—
Net loss attributable to noncontrolling interests	—			—		3,807			—			3,807
Net income (loss) attributable to Steel Dynamics, Inc.	$	30,761		$	25,289	$	(13,212	)	$	(12,077	)	$	30,761

14

STEEL DYNAMICS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 10.  Condensed Consolidating Information (Continued)

Condensed Consolidating Statements of Cash Flows (in thousands)

For the three months ended,							Combined			Consolidating			Total
March 31, 2016	Parent			Guarantors			Non-Guarantors			Adjustments			Consolidated
Net cash provided by operating activities	$	119,354		$	179,289		$	(6,917	)	$	(2,827	)	$	288,899
Net cash used in investing activities	(7,318		)	(9,974		)	(4,108		)	(3,254		)	(24,654		)
Net cash provided by (used in) financing activities	138,777			(176,209		)	17,025			6,081			(14,326		)
Increase (decrease) in cash and equivalents	250,813			(6,894		)	6,000			—			249,919
Cash and equivalents at beginning of period	636,877			81,976			8,179			—			727,032
Cash and equivalents at end of period	$	887,690		$	75,082		$	14,179		$	—		$	976,951

For the three months ended,							Combined			Consolidating			Total
March 31, 2015	Parent			Guarantors			Non-Guarantors			Adjustments			Consolidated
Net cash provided by operating activities	$	102,678		$	114,451		$	9,456		$	8,122		$	234,707
Net cash used in investing activities	(18,547		)	(12,949		)	(9,727		)	9,535			(31,688		)
Net cash used in financing activities	(218,903		)	(166,134		)	(706		)	(17,657		)	(403,400		)
Decrease in cash and equivalents	(134,772		)	(64,632		)	(977		)	—			(200,381		)
Cash and equivalents at beginning of period	265,313			81,690			14,360			—			361,363
Cash and equivalents at end of period	$	130,541		$	17,058		$	13,383		$	—		$	160,982

15

ITEM 2.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-Looking Statements

This report contains some predictive statements about future events, including statements related to conditions in the steel and metallic scrap markets, our revenues, costs of purchased materials, future profitability and earnings, and the operation of new or existing facilities. These statements, which we generally precede or accompany by such typical conditional words as “anticipate,” “intend,” “believe,” “estimate,” “plan,” seek,” “project’” or “expect,” or by the words “may,” “will,” or “should,” are intended to be made as “forward-looking,” subject to many risks and uncertainties, within the safe harbor protections of the Private Securities Litigation Reform Act of 1995, incorporated in Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements involve both known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. These statements speak only as of this date and are based upon information and assumptions, which we consider reasonable as of this date, concerning our businesses and the environments in which they operate. Such predictive statements are not guarantees of future performance, and we undertake no duty to update or revise any such statements. Some factors that could cause such forward-looking statements to turn out differently than anticipated include: (1) the effects of uncertain economic conditions; (2) cyclical and changing industrial demand; (3) changes in conditions in any of the steel or scrap-consuming sectors of the economy which affect demand for our products, including the strength of the non-residential and residential construction, automotive, appliance, pipe and tube, and other steel-consuming industries; (4) fluctuations in the cost of key raw materials (including steel scrap, iron units, and energy costs) and our ability to pass-on any cost increases; (5) the impact of domestic and foreign import price competition; (6) unanticipated difficulties in integrating or starting up new or acquired businesses; (7) risks and uncertainties involving product and/or technology development; and (8) occurrences of unexpected plant outages or equipment failures.

More specifically, we refer you to our more detailed explanation of these and other factors and risks that may cause such predictive statements to turn out differently, as set forth under the headings Special Notes Regarding Forward-Looking Statements and Risk Factors, in our most recent Annual Report on Form 10-K for the year ended December 31, 2015, in our quarterly reports on Form 10-Q or in other reports which we from time to time file with the Securities and Exchange Commission. These reports are available publicly on the Securities and Exchange Commission website, www.sec.gov, and on our website, www.steeldynamics.com.

Description of the Business

We are a domestic manufacturer of steel products and metals recycler. We have three reporting segments: steel operations, metals recycling operations, and steel fabrication operations. Steel operations include our Butler Flat Roll Division, Columbus Flat Roll Division, The Techs galvanizing lines, Structural and Rail Division, Engineered Bar Products Division, Roanoke Bar Division, Steel of West Virginia, and  Iron Dynamics, a liquid pig iron (scrap substitute) production facility that solely supplies the Butler Flat Roll Division. These operations include electric arc furnace steel mills, producing steel from ferrous scrap and scrap substitutes, utilizing continuous casting, automated rolling mills, and ten downstream coating facilities. Metals recycling operations include our metals recycling processing locations, and ferrous scrap procurement operations, of OmniSource Corporation. Steel fabrication operations include our eight New Millennium Building Systems’ joist and deck plants located throughout the United States and Northern Mexico. Revenues from these plants are generated from the fabrication of trusses, girders, steel joists and steel deck used within the non-residential construction industry. The “Other” category consists of subsidiary operations that are below the quantitative thresholds required for reportable segments and primarily consist of our Minnesota ironmaking operations that were indefinitely idled in May 2015, and several joint ventures. Also included in “Other” are certain unallocated corporate accounts, such as our senior secured credit facility, senior notes, certain other investments and certain profit sharing expenses.

Operating Statement Classifications

Net Sales.  Net sales from our operations are a factor of volumes shipped, product mix and related pricing. We charge premium prices for certain grades of steel, product dimensions, certain smaller volumes, and for value-added processing or coating of the steel products.  Except for our steel fabrication operations, we recognize revenue from sales and the allowance for estimated costs associated with returns from these sales at the time the title of the product is transferred to the customer. Provision is made for estimated product returns and customer claims based on estimates and actual historical experience. Net sales from steel fabrication operations are recognized from construction contracts utilizing a percentage of completion methodology based on steel tons used on completed units to date as a percentage of estimated total steel tons required for each contract.

Costs of Goods Sold.  Our costs of goods sold represent all direct and indirect costs associated with the manufacture of our products. The principal elements of these costs are scrap and scrap substitutes (which represent the most significant single component of our consolidated costs of goods sold), steel, direct and indirect labor and related benefits, alloys, zinc, transportation and freight, repairs and maintenance, utilities (most notably electricity and natural gas), and depreciation.

Selling, General and Administrative Expenses.  Selling, general and administrative expenses consist of all costs associated with our sales, finance and accounting, and administrative departments. These costs include, among other items, labor and related benefits, professional services, insurance premiums, property taxes, company-wide profit sharing, and amortization of intangible and other assets.

Interest Expense, net of Capitalized Interest.  Interest expense consists of interest associated with our senior credit facilities and other debt net of interest costs that are required to be capitalized during the construction period of certain capital investment projects.

Other (Income) Expense, net.  Other income consists of interest income earned on our temporary cash deposits and investments; any other non-operating income activity, including income from non-consolidated investments accounted for under the equity method. Other expense consists of any non-operating costs, such as acquisition and certain financing expenses.

16

Results Overview

Consolidated operating income increased $32.2 million, or 32%, to $132.0 million for the first quarter 2016, compared to $99.8 million for the first quarter 2015. First quarter 2016 net income increased $32.0 million, or 104%, to $62.7 million, from $30.8 million for the first quarter 2015.

Our consolidated first quarter 2016 operational and financial performance was positively impacted by significantly improved sheet steel product shipments, as well as increased volumes in both our metals recycling and steel fabrication operations. However, average selling prices across all our operating platforms were down substantially in the first quarter 2016 compared to the first quarter 2015, due to commodity price declines that took place throughout 2015, with price recovery beginning in the latter portion of the first quarter 2016. Underlying domestic steel consumption remains relatively unchanged and steady, with the heavy equipment, agriculture and energy markets remaining weak, while automotive remains strong and the non-residential construction market continues to recover. Steel import levels declined over 30% during the first quart 2016 as compared the prior year first quarter. Initial trade case rulings on unfairly traded corrosion resistant steel have served as a disincentive to steel import purchases. As a result, domestic steel mill utilization rates have increased in the first quarter 2016 compared to late 2015, resulting in increased ferrous scrap shipments in our metals recycling operations. Our steel fabrication operations continue to benefit from the improved non-residential construction market, our market share and expanding geographic footprint, and lower steel raw material costs, resulting in significant increases in both sales and operating income, compared to the first quarter 2015.

Segment Operating Results 2016 vs. 2015 (dollars in thousands)

	Three Months Ended
	March 31,
	2016			% Change		2015
Net sales
Steel Operations Segment	$	1,258,388		(12	)%	$	1,434,322
Metals Recycling Operations Segment	487,185			(25	)%	652,011
Steel Fabrication Operations Segment	180,081			12	%	161,028
Other	75,889			(19	)%	93,600
	2,001,543					2,340,961
Intra-company	(260,242		)			(293,526		)
Consolidated	$	1,741,301		(15	)%	$	2,047,435
Operating income (loss)
Steel Operations Segment	$	132,275		15	%	$	114,965
Metals Recycling Operations Segment	2,767			162	%	(4,498		)
Steel Fabrication Operations Segment	32,016			50	%	21,361
Other	(31,930		)	11	%	(35,902		)
	135,128					95,926
Intra-company	(3,163		)			3,845
Consolidated	$	131,965		32	%	$	99,771

Steel Operations Segment

Steel Operations Segment. Steel operations consist of our six electric arc furnace steel mills, producing steel from ferrous scrap and scrap substitutes, utilizing continuous casting, automated rolling mills, and ten downstream coating lines, and IDI, our liquid pig production facility that supplies solely our Butler Flat Roll Division mill. Our steel operations sell directly to end users and service centers. These products are used in numerous industry sectors, including the automotive, construction, manufacturing, transportation, heavy and agriculture equipment, and pipe and tube markets. Steel operations accounted for 70% and 68% of our consolidated external net sales during the first quarter 2016 and 2015, respectively.

Sheet Products.  Our sheet products operations consist of Butler and Columbus Flat Roll Divisions, and our downstream coating lines, including The Techs. These operations sell a broad range of sheet steel products, such as hot roll, cold roll and coated steel products, including a wide variety of specialty products, such as light gauge hot roll and galvanized. Butler Flat Roll Division sells other products such as Galvalume® and painted products, while Columbus Flat Roll Division sells other products used to produce non-energy line pipe, and is currently in the construction phase of a $100 million expansion to add painted and Galvalume® capacity. The Techs is comprised of three galvanizing lines which sell specialized galvanized sheet steels used in non-automotive applications.

Long Products.  Our Structural and Rail Division sells structural steel beams and pilings to the construction market, as well as standard-grade and premium rail to the railroad industry. Our Engineered Bar Products Division primarily sells engineered, special-bar-quality and merchant-bar-quality rounds, round-cornered squares, and smaller-diameter round engineered bars. Our Roanoke Bar Division primarily sells merchant steel products, including angles, merchant rounds, flats and channels, and reinforcing bar. Steel of West Virginia primarily sells beams, channels and specialty steel sections.

17

Steel Operations Segment Shipments (tons):

	Three Months Ended
	March 31,
	2016		% Change		2015
Shipments
Butler Flat Roll Division	712,138				579,493
Columbus Flat Roll Division	756,933				564,241
The Techs	188,269				145,934
Sheet products	1,657,340		29	%	1,289,668
Structural and Rail Division	292,988				304,352
Engineered Bar Products Division	125,200				156,366
Roanoke Bar Division	125,471				125,123
Steel of West Virginia	76,209				73,511
Long products	619,868		(6	)%	659,352
Total shipments	2,277,208		17	%	1,949,020
Intra-segment shipments	(65,058	)			(56,094	)
Steel operations segment shipments	2,212,150		17	%	1,892,926
External shipments	2,121,872		17	%	1,816,371

Segment Results 2016 vs. 2015

Overall steel operations performance in the first quarter 2016 compared to the same period in 2015 was positively impacted by changes in the flat roll steel supply environment. Flat roll steel import levels declined, and customer inventory levels were better matched with actual demand requirements, supporting higher domestic steel mill utilization. Our steel mill utilization rate was 88% for the first quarter 2016, as compared to 73% in the first quarter 2015. The domestic steel demand outlook remained relatively unchanged and steady, with the heavy equipment, agricultural and energy markets remaining weak, while automotive continued to be strong and construction continued to recover. Net sales for the steel operations decreased 12% in the first quarter 2016, when compared to the same period in 2015, as a 17% increase in steel operations shipments was more than offset by a decrease of $189 per ton, or 25%, in average selling prices. In spite of solid overall domestic steel demand, average selling prices in the first quarter 2016 remained muted due to the lingering effects of price declines experienced during 2015, caused by elevated levels of imported steel into the United States and significant reductions in the cost of scrap.

18

Metallic raw materials used in our electric arc furnaces represent our single most significant steel manufacturing cost. During the first quarter 2016 and 2015, our metallic raw material costs represented 50% and 59%, respectively, of our steel operations’ manufacturing costs, excluding the operations of The Techs, which purchases, rather than produces, the steel it further processes. Our metallic raw material cost per net ton consumed in our steel operations decreased $128, or 41%, in the first quarter 2016, compared the same period in 2015, consistent with overall declines in scrap market pricing.

Decreases in steel selling prices more than offset decreases in raw material cost per ton, resulting in first quarter 2016 metal spread (which we define as the difference between average selling prices and the cost of ferrous scrap consumed) contraction compared to the same period in 2015. In spite of decreased metal spread, increased volumes in sheet products made up for the margin reduction, with operating income for the steel operations increasing 15%, to $132.3 million, in the first quarter 2016, compared to the same period in 2015.

Metals Recycling Operations Segment

Metals Recycling Operations Segment.  Metals recycling operations include our metals recycling processing locations, and ferrous scrap procurement operations of OmniSource. OmniSource sells ferrous metals to steel mills and foundries, and nonferrous metals, such as copper, brass, aluminum and stainless steel to, among others, ingot manufacturers, copper refineries and mills, smelters, and specialty mills. Our metals recycling operations accounted for 15% and 21% of our consolidated net sales in the first quarter 2016 and 2015, respectively.

Metals Recycling Operations Shipments:

	Three Months Ended
	March 31,
	2016		% Change		2015
Ferrous metal (gross tons)
Total	1,305,154		6	%	1,233,001
Inter-company	(801,367	)			(590,921	)
External shipments	503,787		(22	)%	642,080
Nonferrous metals (thousands of pounds)
Total	270,410		4	%	259,903
Inter-company	(27,850	)			(18,323	)
External shipments	242,560		—	%	241,580

Segment Results 2016 vs. 2015

Overall metals recycling operations performance in the first quarter 2016 compared to the same period in 2015 was positively impacted by improving domestic steel mill utilization, particularly that of our steel mills. Shipments to our own steel mills increased to 61% of total ferrous metal shipments in the first quarter 2016, compared to 48% during the same period in 2015. Metals recycling operations net sales decreased 25% in the first quarter 2016 as compared to the same period in 2015, with ferrous and nonferrous pricing decreasing 38% and 20%, respectively in the first quarter 2016, as compared to the first quarter 2015, a product of the sharp decline in scrap values experienced during 2015 still lingering into 2016. However, ferrous and nonferrous volumes increased 6% and 4%, respectively, during the first quarter 2016, as compared to the same period in 2015, consistent with improved market demand. Metal spreads (which we define as the difference between average selling prices and the cost of purchased scrap) for ferrous metal decreased 15% period over period as ferrous selling prices declined more than scrap costs, while nonferrous materials metal spread improved 13%. Operating income for the metals recycling operations in the first quarter 2016 of $2.8 million was $7.3 million higher than first quarter 2015’s operating loss of $4.5 million, due largely to operating cost compression from higher volumes as well as focused cost containment efforts.

19

Steel Fabrication Operations Segment

Steel fabrication operations include our eight New Millennium Building Systems’ joist and deck plants located throughout the United States and Northern Mexico. Revenues from these plants are generated from the fabrication of trusses, girders, steel joists and steel deck used within the non-residential construction industry. Steel fabrication operations accounted for 10% and 8% of our consolidated net sales during the first quarter 2016 and 2015, respectively.

Segment Results 2016 vs. 2015

Overall steel fabrication operations performance in the first quarter 2016 compared to the same period in 2015 was positively impacted by an improved non-residential construction market, the acquisition of additional deck assets in late 2015, and increased market share for both joist and deck, driving increased sales volumes and increased profitability. Net sales for the steel fabrication operations increased $19.1 million, or 12%, in the first quarter 2016, compared to the same period in 2015, as shipments increased 29% while average selling prices decreased $187 per ton, or 13%, consistent with the drop in steel selling prices. Our steel fabrication operations continue to realize strength in order activity and resulting shipments, as we leverage our national operating footprint to gain market share, and market demand continues to be strong.

The purchase of various steel products is the largest single cost of production for our steel fabrication operations, generally representing approximately two-thirds of the total cost of manufacturing. The average cost of steel consumed decreased by 26% in the first quarter 2016, as compared to the same period in 2015, and coupled with a 13% decrease in selling prices resulted in modestly expanded metal spreads. As a result of near record quarterly shipments and metal spread expansion, operating income increased 50% to $32.0 million in the first quarter 2016, as compared to $21.4 million in the same period in 2015.

Other Operations

Other operations consists of subsidiary operations that are below the quantitative thresholds required for reportable segments and primarily consist of our Minnesota ironmaking operations, which were indefinitely idled in May 2015, and several smaller joint ventures. Also included in “Other” are certain unallocated corporate accounts, such as the company’s senior secured credit facility, senior notes, certain other investments and certain profit sharing expenses. Prior to being indefinitely idled, our Minnesota ironmaking operations experienced operating losses, which have been significantly curtailed post-idling.

20

First Quarter Consolidated Results 2016 vs. 2015

Selling, General and Administrative Expenses. Selling, general and administrative expenses (including profit sharing and amortization of intangible assets) of $104.1 million during the first quarter 2016 increased 19% from $87.3 million during the first quarter 2015, representing approximately 6.0% and 4.3% of net sales, respectively. The increase in the first quarter 2016 compared to the same period in 2015 is due most notably to increased profit sharing and incentive compensation expenses associated with increased operating income.

Interest Expense, net of Capitalized Interest.  During the first quarter 2016, interest expense decreased $6.0 million to $37.0 million, when compared to the same period in 2015. The decrease in interest expense is due primarily to the call and prepayment of our $350.0 million 7 5/8% Senior Notes due 2020, in March 2015.

Other Expense, net.  During the first quarter 2016, net other income of $1.8 million compared to net other expense of $16.2 million in the same period in 2015, which included $16.7 million of call premium and other finance expenses associated with the March 2015 senior note call and prepayment.

Income Tax Expense.  During the first quarter 2016, our income tax expense was $35.4 million at an effective income tax rate of 36.6%, as compared to $13.5 million at an effective income tax rate of 33.4%, during the first quarter 2015. The effective tax rate in the first quarter 2015 was lower due primarily to certain favorable discrete tax adjustments recorded during the quarter.

Liquidity and Capital Resources

Capital Resources and Long-term Debt. Our business is capital intensive and requires substantial expenditures for, among other things, the purchase and maintenance of equipment used in our steel, metals recycling, and steel fabrication operations, and to remain in compliance with environmental laws. Our short-term and long-term liquidity needs arise primarily from working capital requirements, capital expenditures, principal and interest payments related to our outstanding indebtedness, dividends to our shareholders, and acquisitions. We have met these liquidity requirements primarily with cash provided by operations, long-term borrowings and availability under our Revolver. Our liquidity at March 31, 2016, is as follows (in thousands):

Cash and equivalents	$	976,951
Revolver availability	1,187,418
Total liquidity	$	2,164,369

Our total outstanding debt remained relatively unchanged during the first quarter 2016 at $2.6 billion. Our total long-term debt to capitalization ratio (representing our long-term debt, including current maturities, divided by the sum of our long-term debt, redeemable noncontrolling interests, and our total stockholders’ equity) was 49.0% at March 31, 2016, compared to 49.3% at December 31, 2015.

We have a senior secured credit facility (Facility) that matures in November 2019 which provides for a $1.2 billion Revolver along with a term loan facility. Subject to certain conditions, we also have the ability to increase the combined facility size by a minimum of $750 million. The Facility contains financial and other covenants pertaining to our ability (which may under certain circumstances be limited) to make capital expenditures; incur indebtedness; permit liens on property; enter into transactions with affiliates; make restricted payments or investments; enter into mergers, acquisitions or consolidations; conduct asset sales; pay dividends or distributions and enter into other specified transactions and activities. Our ability to borrow funds within the terms of the Revolver is dependent upon our continued compliance with the financial and other covenants. At March 31, 2016, we had $1.2 billion of availability on the Revolver, $12.6 million of outstanding letters of credit and other obligations which reduce availability, and there were no borrowings outstanding.

The financial covenants under our Facility state that we must maintain an interest coverage ratio of not less than 2.50:1.00. Our interest coverage ratio is calculated by dividing our last-twelve trailing months (LTM) consolidated adjusted EBITDA (earnings before interest, taxes, depreciation, amortization, and certain other non-cash transactions as allowed in our Facility) by our LTM gross interest expense, less amortization of financing fees. In addition, a net debt (as defined in the Facility) to consolidated LTM adjusted EBITDA (net debt leverage ratio) of not more than 5.00:1.00 must be maintained. If the net debt leverage ratio exceeds 3.50:1:00 at any time, our ability to make certain payments as defined in the Facility (which includes cash dividends to stockholders and share purchases, among other things), is limited. At March 31, 2016, our interest coverage ratio and net debt leverage ratio were 5.21:1.00 and 2.85:1.00, respectively. We were, therefore, in compliance with these covenants at March 31, 2016, and we anticipate we will continue to be in compliance during the remainder of the year.

Working Capital. We generated cash flow from operations of $288.9 million in the first quarter 2016. Operational working capital (representing amounts invested in trade receivables and inventories, less current liabilities other than income taxes payable and debt) decreased $130.7 million during the period to $1.1 billion. Accounts payable increased 46% due to higher production volumes during the quarter compared to the fourth quarter of 2015.

Capital Investments.  During the first quarter 2016, we invested $27.7 million in property, plant and equipment primarily within our steel operations segment, compared with $33.4 million invested during the same period in 2015. Our current estimated 2016 cash allocation plan includes the investment of approximately $250 million in capital expenditures in our existing and announced operations.

21

Cash Dividends.  As a reflection of continued confidence in our current and future cash flow generation ability and financial position, we increased our quarterly cash dividend by 2% to $0.1400 per share in the first quarter 2016 (from $0.1375 per share in 2015), resulting in declared cash dividends of $34.1 million during the first quarter 2016, compared to $33.2 million during the same period in 2015. We paid cash dividends of $33.4 million and $27.8 million during the first quarter 2016 and 2015, respectively. Our board of directors, along with executive management, approves the payment of dividends on a quarterly basis. The determination to pay cash dividends in the future is at the discretion of our board of directors, after taking into account various factors, including our financial condition, results of operations, outstanding indebtedness, current and anticipated cash needs and growth plans. In addition, the terms of our senior secured credit facility and the indenture relating to our senior notes may restrict the amount of cash dividends we can pay.

Other.  Our ability to meet our debt service obligations and reduce our total debt will depend upon our future performance which, in turn, will depend upon general economic, financial and business conditions, along with competition, legislation and regulatory factors that are largely beyond our control. In addition, we cannot assure that our operating results, cash flows, access to credit markets and capital resources will be sufficient for repayment of our indebtedness in the future. We believe that based upon current levels of operations and anticipated growth, cash flows from operations, together with other available sources of funds, including additional borrowings under our Revolver through its term, which expires in November 2019, will be adequate for the next twelve months for making required payments of principal and interest on our indebtedness, funding working capital requirements, and anticipated capital expenditures.

ITEM 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

In the normal course of business, we are exposed to interest rate changes. Our objectives in managing exposure to interest rate changes are to limit the impact of these rate changes on earnings and cash flows and to lower overall borrowing costs. To achieve these objectives, we occasionally use interest rate swaps to manage net exposure to interest rate changes related to our portfolio of borrowings. We did not have any interest rate swaps during the periods ended March 31, 2016 or 2015.

Commodity Risk

In the normal course of business we are exposed to the market risk and price fluctuations related to the sale of our products and to the purchase of raw materials used in our operations, such as metallic raw materials, electricity, natural gas and its transportation services, fuel, air products, and zinc. Our risk strategy associated with product sales has generally been to obtain competitive prices for our products and to allow operating results to reflect market price movements dictated by supply and demand.

Our risk strategy associated with the purchase of raw materials utilized within our operations has generally been to make some commitments with suppliers relating to future expected requirements for some commodities such as electricity, natural gas and its transportation services, fuel, air products, and zinc. Certain of these commitments contain provisions which require us to “take or pay” for specified quantities without regard to actual usage generally for periods of up to 24 months for physical commodity requirements (in certain cases up to 60 months), for up to 4 years for commodity transportation requirements, and for up to 12 years for air products. We utilized such “take or pay” requirements during the past three years under these contracts, except for certain air products at our Minnesota ironmaking operations which were idled in May 2015. We believe that production requirements will be such that consumption of the products or services purchased under these commitments will occur in the normal production process, other than certain air products related to our Minnesota ironmaking operations during the idle period. We also purchase electricity consumed at our Flat Roll Division pursuant to a contract which extends through December 2017. The contract designates 160 hours annually as “interruptible service” and establishes an agreed fixed-rate energy charge per Mill/kWh consumed for each year through the expiration of the agreement.

In our metals recycling operations we have certain fixed price contracts with various customers and suppliers for future delivery of nonferrous metals. Our risk strategy has been to enter into base metal financial contracts with the goal to protect the profit margin, within certain parameters, that was contemplated when we entered into the transaction with the customer or vendor. At March 31, 2016, we had a cumulative unrealized loss associated with these financial contracts of $1.5 million, substantially all of which have a settlement date within the next twelve months. We believe the customer contracts associated with the financial contracts will be fully consummated.

ITEM 4.CONTROLS AND PROCEDURES

(a)  Evaluation of Disclosure Controls and Procedures.  Our management, with the participation of our principal executive officer and principal financial officer, evaluated the effectiveness of our disclosure controls and procedures as of March 31, 2016. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Based on the evaluation of our disclosure controls and procedures as of March 31, 2016, our principal executive officer and principal financial officer concluded that, as of such date, our disclosure controls and procedures were effective.

22

(b)  Changes in Internal Controls Over Financial Reporting.  No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the fiscal quarter ended March 31, 2016, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II OTHER INFORMATION

ITEM 1.LEGAL PROCEEDINGS

We are involved, along with two other remaining steel manufacturing company defendants, in a class action antitrust suit in federal court in Chicago, Illinois, originally against eight companies. The Complaint alleges a conspiracy on the part of the original defendants to fix, raise, maintain and stabilize the price at which steel products were sold in the United States during a specified period between 2005 and 2007, by artificially restricting the supply of such steel products. All but one of the Complaints were brought on behalf of a purported class consisting of all direct purchasers of steel products. The other Complaint was brought on behalf of a purported class consisting of all indirect purchasers of steel products within the same time period.  In addition, another similar complaint was filed in December 2010 purporting to be on behalf of indirect purchasers of steel products in Tennessee. All Complaints have been consolidated in the Chicago action and seek treble damages and costs, including reasonable attorney fees, pre- and post-judgment interest and injunctive relief. Following an extensive period of discovery and related motions concerning class certification matters, the Court, on September 9, 2015, certified a class, limited, however, to the issue of the alleged conspiracy alone, and denied class certification on the issue of antitrust impact and damages.  As a result, some additional discovery is ongoing. We have also filed a motion for summary judgment, as has co-defendant SSAB, and this matter is currently pending.

Due, however, to the uncertain nature of litigation, we cannot presently determine the ultimate outcome of this litigation. Based on the information available at this time, we have determined that there is not presently a “reasonable possibility” (as that term is defined in ASC 450-20-20), that the outcome of these legal proceedings would have a material impact on our financial condition, results of operations, or liquidity. Although not presently necessary or appropriate to make a dollar estimate of exposure to loss, if any, in connection with the above matter, we may in the future determine that a loss accrual is necessary. Although we may make loss accruals, if and as warranted, any amounts that we may accrue from time to time could vary significantly from the amounts we actually pay, due to inherent uncertainties and the inherent shortcomings of the estimation process, the uncertainties involved in litigation and other factors. Additionally, an adverse result could have a material effect on our financial condition, results of operations and liquidity.

We are involved in various routine litigation matters, including administrative proceedings, regulatory proceedings, governmental investigations, environmental matters, and commercial and construction contract disputes, none of which are expected to have a material impact on our financial condition, results of operations, or liquidity.

ITEM 1A.RISK FACTORS

No material changes have occurred to the indicated risk factors as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2015.

ITEM 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

ITEM 3.DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.MINE SAFETY DISCLOSURES

The information required to be furnished pursuant to Item 4 concerning mine safety disclosure matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K (17 CFR 229.104) is included in Exhibit 95 to this Quarterly Report.

ITEM 5.OTHER INFORMATION

None.

23

ITEM 6.        EXHIBITS

Executive Officer Certifications

31.1*	Certification of Principal Executive Officer required by Item 307 of Regulation S-K as promulgated by the Securities and Exchange Commission and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification of Principal Financial Officer required by Item 307 of Regulation S-K as promulgated by the Securities and Exchange Commission and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certification of Chief Executive Officer Pursuant to 18 U.S.C Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	Certification of Chief Financial Officer Pursuant to 18 U.S.C Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Other

95* Mine Safety Disclosures.

XBRL Documents

101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema Document
101.CAL*	XBRL Taxonomy Extension Calculation Document
101.DEF*	XBRL Taxonomy Definition Document
101.LAB*	XBRL Taxonomy Extension Label Document
101.PRE*	XBRL Taxonomy Presentation Document

*      Filed concurrently herewith

24

SIGNATURE

Pursuant to the requirements 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.

May 6, 2016

STEEL DYNAMICS, INC.
By:	/s/ Theresa E. Wagler
	Theresa E. Wagler
Executive Vice President and Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)

25

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Mark D. Millett, certify that:

1.      I have reviewed this quarterly report for the period ended March 31, 2016, on Form 10-Q of Steel Dynamics, 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.

/s/ Mark D. Millett

Mark D. Millett

Chief Executive Officer

(Principal Executive Officer)

May 6, 2016

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Theresa E. Wagler, certify that:

1.      I have reviewed this quarterly report for the period ended March 31, 2016, on Form 10-Q of Steel Dynamics, 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.

/s/ Theresa E. Wagler

Theresa E. Wagler

Executive Vice President and Chief Financial Officer

(Principal Financial Officer and Principal Accounting Officer)

May 6, 2016

EX-32.1

EXHIBIT 32.1

Chief Executive Officer Certification

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 Quarterly Report of Steel Dynamics, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2016 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Mark D. Millett, Chief Executive Officer of Steel Dynamics, Inc., certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Mark D. Millett

Mark D. Millett

Chief Executive Officer

(Principal Executive Officer)

May 6, 2016

A signed original of this written statement required by Section 906 has been provided to Steel Dynamics, Inc. and will be retained by Steel Dynamics, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

EXHIBIT 32.2

Principal Financial Officer Certification

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 Quarterly Report of Steel Dynamics, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2016 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Theresa E. Wagler, Executive Vice President and Chief Financial Officer of Steel Dynamics, Inc., certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Theresa E. Wagler

Theresa E. Wagler

Executive Vice President and Chief Financial Officer

(Principal Financial Officer and Principal Accounting Officer)

May 6, 2016

A signed original of this written statement required by Section 906 has been provided to Steel Dynamics, Inc. and will be retained by Steel Dynamics, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-95

EXHIBIT 95

Mine Safety Disclosures

This exhibit contains information concerning mine safety matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act about certain citations, orders and notices issued under the Federal Mine Safety and Health Act of 1977 (Mine Act) by the federal Mine Safety and Health Administration (MSHA) for our operations for the three months ended March 31, 2016.

THREE MONTHS ENDED MARCH 31, 2016

										Legal
										Actions
			Section			Total Dollar		Legal	Legal	Pending
			104(d)			Value of		Actions	Actions	as of
	Section	Section	Citations	Section	Section	MSHA		Initiated	Resolved	Last
	104 S&S	104(b)	and	110(b)(2)	107(a)	Assessments		During	During	Day of
Mine or Operating Name /	Citations	Orders	Orders	Violations	Orders	Proposed		Period	Period	Period
MSHA Identification Number	(#)	(#)	(#)	(#)	(#)	($)		(#)	(#)	(#)
Mesabi Nugget Delaware, LLC	—	—	—	—	—	$	110	—	—	—
21-03689
Mining Resources, LLC	—	—	—	—	—	$	—	—	—	—
21-03775

Although Mesabi Nugget Delaware, LLC (Mesabi Nugget), an affiliate of Steel Dynamics, Inc., is not a mining operation, the MSHA claims jurisdiction over Mesabi Nugget’s operations regarding the production of iron nuggets via a production process that utilizes iron concentrate and coal as input raw materials. Similarly, Mining Resources, LLC (Mining Resources), an affiliate of Steel Dynamics, Inc., is not a mining operation; however MSHA claims jurisdiction over Mining Resources’ operations regarding the extraction of iron tailings from previously developed stockpiles or water-filled tailings basins, to be concentrated for use by Mesabi Nugget as a low-cost iron concentrate to the nugget production process. Therefore, this disclosure relating to Mesabi Nugget and Mining Resources is being submitted by Steel Dynamics, Inc. Operations at Mesabi Nugget and Mining Resources were indefinitely idled in May 2015.

The MSHA citations and orders set forth in the table above are those that were issued by MSHA and received by Mesabi Nugget and Mining Resources during the three months ended March 31, 2016.  In addition, the table above sets forth the total dollar amount of assessments proposed by MSHA during the three months ended March 31, 2016. The dollar amount of MSHA assessments proposed does not include assessments on those citations or orders that were received by Mesabi Nugget or Mining Resources after March 31, 2016.

The information in the table above does not reflect any subsequent changes in the level of severity of a citation or order, or changes in the value of an assessment that occurred during the time period presented in the table above (or that may occur after the time period covered in the table above) as a result of proceedings conducted in accordance with MSHA rules. For purposes of legal actions disclosures in the table above, any citation contested in any form or manner with MSHA is considered a legal action for reporting purposes.

During the period covered by this report, no written notices were received from MSHA of a pattern, or the potential to have a pattern, of violations of mandatory health or safety standards that are of such a nature as could have significantly and substantially contributed to the cause and effect of mine health or safety hazards under Section 104(e) of the Mine Act, and there were no mining related fatalities.

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Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 29, 2016
Document and Entity Information
Entity Registrant Name	STEEL DYNAMICS INC
Entity Central Index Key	0001022671
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		243,572,462
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1

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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets
Cash and equivalents	$ 976,951	$ 727,032
Accounts receivable, net	654,177	579,333
Accounts receivable-related parties	35,024	34,272
Inventories	1,066,823	1,149,390
Other current assets	41,258	47,914
Total current assets	2,774,233	2,537,941
Property, plant and equipment, net	2,914,186	2,951,210
Restricted cash	19,603	19,565
Intangible assets, net	272,528	278,960
Goodwill	395,872	397,470
Other assets	15,220	16,936
Total assets	6,391,642	6,202,082
Current liabilities
Accounts payable	407,405	276,725
Accounts payable-related parties	6,170	6,630
Income taxes payable	9,960	2,023
Accrued payroll and benefits	81,246	94,906
Accrued interest	47,928	38,502
Accrued expenses	97,567	99,824
Current maturities of long-term debt	22,770	16,680
Total current liabilities	673,046	535,290
Long-term debt	2,575,528	2,577,976
Deferred income taxes	416,260	400,770
Other liabilities	$ 19,302	$ 16,595
Commitments and contingencies
Redeemable noncontrolling interests	$ 126,340	$ 126,340
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 263,142,777, and 262,937,139 shares issued; and 243,500,764, and 243,089,514 shares outstanding, as of March 31, 2016 and December 31, 2015, respectively	639	638
Treasury stock, at cost; 19,642,013, and 19,847,625 shares, as of March 31, 2016 and December 31, 2015, respectively	(392,348)	(396,455)
Additional paid-in capital	1,115,008	1,110,253
Retained earnings	1,993,910	1,965,291
Total Steel Dynamics, Inc. equity	2,717,209	2,679,727
Noncontrolling interests	(136,043)	(134,616)
Total equity	2,581,166	2,545,111
Total liabilities and equity	$ 6,391,642	$ 6,202,082

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
CONSOLIDATED BALANCE SHEETS
Common stock voting, par value (in dollars per share)	$ 0.0025	$ 0.0025
Common stock voting, shares authorized (in shares)	900,000,000	900,000,000
Common stock voting, shares issued (in shares)	263,142,777	262,937,139
Common stock voting, shares outstanding (in shares)	243,500,764	243,089,514
Treasury stock, shares (in shares)	19,642,013	19,847,625

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CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net sales
Unrelated parties	$ 1,698,004	$ 2,003,973
Related parties	43,297	43,462
Total net sales	1,741,301	2,047,435
Costs of goods sold	1,505,265	1,860,393
Gross profit	236,036	187,042
Selling, general and administrative expenses	87,530	76,350
Profit sharing	9,291	4,598
Amortization of intangible assets	7,250	6,323
Operating income	131,965	99,771
Interest expense, net of capitalized interest	37,043	43,087
Other (income) expense, net	(1,792)	16,192
Income before income taxes	96,714	40,492
Income tax expense	35,396	13,538
Net income	61,318	26,954
Net loss attributable to noncontrolling interests	1,419	3,807
Net income attributable to Steel Dynamics, Inc.	$ 62,737	$ 30,761
Basic earnings per share attributable to Steel Dynamics, Inc. stockholders	$ 0.26	$ 0.13
Weighted average common shares outstanding - basic (in shares)	243,202	241,535
Diluted earnings per share attributable to Steel Dynamics, Inc. stockholders, including the effect of assumed conversions when dilutive (in dollars per share)	$ 0.26	$ 0.13
Weighted average common shares and share equivalents outstanding (in shares)	244,608	242,867
Dividends declared per share (in dollars per share)	$ 0.1400	$ 0.1375

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities:
Net income	$ 61,318	$ 26,954
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	73,985	72,822
Equity-based compensation	8,405	8,543
Deferred income taxes	17,087	16,717
(Gain) loss on disposal of assets	(18)	4,985
Changes in certain assets and liabilities:
Accounts receivable	(75,596)	133,084
Inventories	82,567	164,999
Other assets	746	4,508
Accounts payable	112,659	(127,053)
Income taxes receivable/payable	13,993	16,265
Accrued expenses	(6,247)	(87,117)
Net cash provided by operating activities	288,899	234,707
Investing activities:
Purchases of property, plant and equipment	(27,708)	(33,351)
Other investing activities	3,054	1,663
Net cash used in investing activities	(24,654)	(31,688)
Financing activities:
Issuance of current and long-term debt	20,452	50,093
Repayment of current and long-term debt	(4,232)	(427,451)
Debt issuance costs	(5)
Proceeds from exercise of stock options, including related tax effect	2,892	1,753
Contributions from noncontrolling investors, net	(8)	(29)
Dividends paid	(33,425)	(27,766)
Net cash used in financing activities	(14,326)	(403,400)
Increase (decrease) in cash and equivalents	249,919	(200,381)
Cash and equivalents at beginning of period	727,032	361,363
Cash and equivalents at end of period	976,951	160,982
Supplemental disclosure information:
Cash paid for interest	26,286	40,094
Cash paid (received) for federal and state income taxes, net	$ 699	$ (18,539)

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Description of the Business and Significant Accounting Policies

3 Months Ended

Mar. 31, 2016

Description of the Business and Significant Accounting Policies

Description of the Business and Significant Accounting Policies

Note 1.  Description of the Business and Significant Accounting Policies

Description of the Business

Steel Dynamics, Inc. (SDI), together with its subsidiaries (the company), is a domestic manufacturer of steel products and metals recycler. The company has three report segments, consistent with how it currently manages the business, representing three reporting segments: steel operations, metals recycling operations, and steel fabrication operations.

Steel Operations Segment.  Steel operations include the company’s Butler Flat Roll Division, Columbus Flat Roll Division, The Techs galvanizing lines, Structural and Rail Division, Engineered Bar Products Division, Roanoke Bar Division, Steel of West Virginia, and  Iron Dynamics (IDI), a liquid pig iron (scrap substitute) production facility that supplies solely the Butler Flat Roll Division. These operations include electric arc furnace steel mills, producing steel from ferrous scrap and scrap substitutes, utilizing continuous casting, automated rolling mills, and ten downstream coating facilities. Steel operations accounted for 70% and 68% of the company’s consolidated external net sales during the three-month periods ended March 31, 2016 and 2015.

Metals Recycling Operations Segment. Metals recycling operations include the company’s metals recycling processing locations, and ferrous scrap procurement operations, of OmniSource Corporation (OmniSource). Metals recycling operations accounted for 15% and 21% of the company’s consolidated external net sales during the three-month periods ended March 31, 2016, and 2015, respectively.

Steel Fabrication Operations Segment.  Steel fabrication operations include the company’s eight New Millennium Building Systems’ joist and deck plants located throughout the United States and Northern Mexico. Revenues from these plants are generated from the fabrication of trusses, girders, steel joists and steel deck used within the non-residential construction industry. Steel fabrication operations accounted for approximately 10% and 8% of the company’s consolidated external net sales during the three-month periods ended March 31, 2016, and 2015, respectively.

Other. The  “Other” category consists of subsidiary operations that are below the quantitative thresholds required for reportable segments and primarily consist of our Minnesota ironmaking operations that were indefinitely idled in May 2015, and several smaller joint ventures. Also included in “Other” are certain unallocated corporate accounts, such as the company’s senior secured credit facility, senior notes, certain other investments and certain profit sharing expenses.

Significant Accounting Policies

Principles of Consolidation.  The consolidated financial statements include the accounts of SDI, together with its wholly and majority-owned or controlled subsidiaries, after elimination of significant intercompany accounts and transactions. Noncontrolling interests represent the noncontrolling owner’s proportionate share in the equity, income, or losses of the company’s majority-owned or controlled consolidated subsidiaries.

Use of Estimates.  These financial statements are prepared in conformity with accounting principles generally accepted in the United States, and accordingly, include amounts that require management to make estimates and assumptions that affect the amounts reported in the financial statements and in the notes thereto. Significant items subject to such estimates and assumptions include the carrying value of property, plant and equipment, intangible assets, and goodwill; valuation allowances for trade receivables, inventories and deferred income tax assets; unrecognized tax benefits; potential environmental liabilities; and litigation claims and settlements. Actual results may differ from these estimates and assumptions.

In the opinion of management, these financial statements reflect all normal recurring adjustments necessary for a fair presentation of the interim period results. These financial statements and notes should be read in conjunction with the audited financial statements and notes thereto included in the company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Goodwill.  The company’s goodwill is allocated to the following reporting units at March 31, 2016, and December 31, 2015, (in thousands):

		March 31,		December 31,
		2016		2015
Metals Recycling Segment:	OmniSource	$	107,441	$	109,039
	Butler Flat Roll Division, Structural and Rail Division, and Engineered Bar Division	95,000		95,000
Steel Segment:	The Techs	142,783		142,783
	Roanoke Bar Division	29,041		29,041
	Columbus Flat Roll Division	19,682		19,682
Fabrication Segment:	New Millennium Building Systems	1,925		1,925
		$	395,872	$	397,470

OmniSource goodwill decreased $1.6 million from December 31, 2015 to March 31, 2016, in recognition of the 2016 tax benefit related to the normal amortization of the component of OmniSource tax-deductible goodwill in excess of book goodwill.

Recently Issued Accounting Standards

In May 2014, the FASB issued guidance codified in ASC 606, Revenue Recognition — Revenue from Contracts with Customers, which amends the guidance in former ASC 605, Revenue Recognition.  The core principle of ASC 606 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Because the guidance in ASC 606 is principles-based, it can be applied to all contracts with customers regardless of industry-specific or transaction-specific fact patterns. Additionally, ASC 606 requires additional disclosures to help users of financial statements better understand the nature, amount, timing, and potential uncertainty of revenue that is recognized. This guidance is effective for annual and interim periods beginning after December 15, 2017, but can be early adopted for annual and interim periods ending after December 15, 2016. The company is currently evaluating the impact of the provisions of ASC 606, including the timing and method of adoption.

In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements — Going Concern (Subtopic 205-40: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern), effective for annual and interim periods ending after December 15, 2016. ASU 2014-15 requires management to evaluate whether there are conditions or events, considered in aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued. There are required disclosures if principal conditions or events are identified that raised substantial doubt about the entity’s ability to continue as a going concern (before consideration of management’s plans), as well as management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations, and management’s plans that alleviated substantial doubt about the entity’s ability to continue as a going concern. This ASU is not expected to have any impact on our overall results of operations, financial position or cash flows.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory, which requires an entity to measure inventory at the lower of cost and net realizable value, rather than at the lower of cost or market.  This new guidance is effective for annual and interim periods beginning after December 15, 2016, but can be early adopted. The company is currently evaluating the impact of this ASU’s adoption.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842): which establishes a new lease accounting model that requires lessees to recognize a right of use asset and related lease liability for most leases having lease terms of more than 12 months.  Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases.  This new guidance is effective for annual and interim periods beginning after December 15, 2018, but can be early adopted.  The company is currently evaluating the impact of the provisions of ASU 2016-02, including the timing of adoption.

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Earnings Per Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share

Earnings Per Share

Note 2.  Earnings Per Share

Basic earnings per share is based on the weighted average shares of common stock outstanding during the period. Diluted earnings per share assumes the weighted average dilutive effect of common share equivalents outstanding during the period applied to the company’s basic earnings per share. Common share equivalents represent potentially dilutive stock options, restricted stock units and deferred stock units; and are excluded from the computation in periods in which they have an anti-dilutive effect. There were no anti-dilutive common share equivalents at or for the three months ended March 31, 2016, and 2015.

The following table presents a reconciliation of the numerators and the denominators of the company’s basic and diluted earnings per share computations for the three month periods ended March 31, 2016, and 2015 (in thousands, except per share data):

	Three Months Ended March 31,
	2016					2015
	Net Income (Numerator)		Shares (Denominator)	Per Share Amount		Net Income (Numerator)		Shares (Denominator)	Per Share Amount
Basic earnings per share	$	62,737	243,202	$	0.26	$	30,761	241,535	$	0.13
Dilutive common share equivalents	—		1,406			—		1,332
Diluted earnings per share	$	62,737	244,608	$	0.26	$	30,761	242,867	$	0.13

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Inventories

3 Months Ended

Mar. 31, 2016

Inventories

Inventories

Note 3.  Inventories

Inventories are stated at lower of cost or market. Cost is determined using a weighted average cost method for scrap, and on a first-in, first-out, basis for other inventory. Inventory consisted of the following (in thousands):

	March 31,		December 31,
	2016		2015
Raw materials	$	353,681	$	419,608
Supplies	390,362		396,349
Work in progress	88,139		90,486
Finished goods	234,641		242,947
Total inventories	$	1,066,823	$	1,149,390

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Debt

3 Months Ended

Mar. 31, 2016

Debt

Debt

Note 4.  Debt

On March 16, 2015, the company called and repaid all $350.0 million of its outstanding 7 5/8% Senior Notes due 2020 (the “Notes”) at a redemption price of 103.813% of the principal amount of the Notes, plus accrued and unpaid interest to, but not including, the date of redemption. Associated premiums and the write off of deferred financing costs of approximately $16.7 million were recorded in other expense in conjunction with the redemption.

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Changes in Equity

3 Months Ended

Mar. 31, 2016

Changes in Equity

Changes in Equity

Note 5.  Changes in Equity

The following table provides a reconciliation of the beginning and ending carrying amounts of total equity, equity attributable to stockholders of Steel Dynamics, Inc. and equity and redeemable amounts attributable to the noncontrolling interests (in thousands):

	Stockholders of Steel Dynamics, Inc.
	Common		Additional Paid-In		Retained			Treasury			Noncontrolling			Total			Redeemable Noncontrolling
	Stock		Capital		Earnings			Stock			Interests			Equity			Interests
Balances at December  31, 2015	$	638	$	1,110,253	$	1,965,291		$	(396,455	)	$	(134,616	)	$	2,545,111		$	126,340
Exercise of stock options proceeds, including related tax effect	1		2,892		—			—			—			2,893			—
Dividends declared	—		—		(34,090		)	—			—			(34,090		)	—
Distributions to noncontrolling investors, net	—		—		—			—			(8		)	(8		)	—
Equity-based compensation	—		1,863		(28		)	4,107			—			5,942			—
Comprehensive and net income (loss)	—		—		62,737			—			(1,419		)	61,318			—
Balances at March  31, 2016	$	639	$	1,115,008	$	1,993,910		$	(392,348	)	$	(136,043	)	$	2,581,166		$	126,340

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Derivative Financial Instruments

3 Months Ended

Mar. 31, 2016

Derivative Financial Instruments

Derivative Financial Instruments

Note 6.  Derivative Financial Instruments

The company is exposed to certain risks relating to its ongoing business operations. The company utilizes derivative instruments to mitigate interest rate risk, foreign currency exchange rate risk, and commodity margin risk. The company routinely enters into forward exchange traded futures and option contracts to manage the price risk associated with nonferrous metals inventory as well as purchases and sales of nonferrous metals (specifically aluminum, copper, and silver).  The company offsets fair value amounts recognized for derivative instruments executed with the same counterparty under master netting agreements.

Commodity Futures Contracts.  If the company is “long” on futures contracts, it means the company has more futures contracts purchased than futures contracts sold for the underlying commodity. If the company is “short” on a futures contract, it means the company has more futures contracts sold than futures contracts purchased for the underlying commodity. The following summarizes the company’s futures contract commitments as of March 31, 2016 (MT represents metric tons and Lbs represents pounds):

Commodity Futures	Long/Short	Total
Aluminum	Long	3,075	MT
Aluminum	Short	1,125	MT
Copper	Long	8,736	MT
Copper	Short	11,796	MT
Silver	Short	343	Lbs

The following summarizes the location and amounts of the fair values reported on the company’s balance sheets as of March 31, 2016, and December 31, 2015, and gains and losses related to derivatives included in the company’s statement of income for the three months ended March 31, 2016, and 2015 (in thousands):

	Asset Derivatives					Liability Derivatives
		Fair Value				Fair Value
	Balance sheet location	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Derivative instruments designatedas fair value hedges -
Commodity futures	Other current assets	$	890	$	857	$	1,945	$	2,860
Derivative instruments not designated as hedges -
Commodity futures	Other current assets	752		908		1,232		1,065
Total derivative instruments		$	1,642	$	1,765	$	3,177	$	3,925

The fair value of the above derivative instruments, along with required margin deposit amounts with the same counterparty under master netting arrangements, which totaled $2.5 million at March 31, 2016, and $3.4 million at December 31, 2015, are reflected in other current assets in the consolidated balance sheet.

		Amount of gain (loss)								Amount of gain (loss)
		recognized in income on								recognized in income on
	Location of gain	derivatives for the three							Location of gain	related hedged items for
	(loss) recognized	months ended						Hedged items	(loss) recognized	the three months ended
	in income on	March 31,			March 31,			in fair value	in income on	March 31,			March 31,
	derivatives	2016			2015			hedge	derivatives	2016			2015
Derivatives in fair value hedging relationships -
Commodity futures	Costs of goods sold	$	932		$	(4,313	)	Firm commitments	Costs of goods sold	$	(1,222	)	$	494
								Inventory	Costs of goods sold	278			2,656
										$	(944	)	$	3,150
Derivatives not designated as hedging instruments -
Commodity futures	Costs of goods sold	$	(872	)	$	6,996

Derivatives accounted for as fair value hedges had ineffectiveness resulting in losses of $45,000 for the three-month period ending March 31, 2016 and gains of $107,000 during the three-month period ended March 31, 2015.  Gains excluded from hedge effectiveness testing of $32,000 decreased costs of goods sold during the three-month period ending March 31, 2016 and losses excluded from hedge effectiveness testing of $1.3 million increased costs of goods sold during the three-month periods ended March 31, 2015.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2016

Fair Value Measurements

Fair Value Measurements

Note 7.  Fair Value Measurements

FASB accounting standards provide a comprehensive framework for measuring fair value and sets forth a definition of fair value and establishes a hierarchy prioritizing the inputs to valuation techniques, giving the highest priority to quoted prices in active markets for identical assets and liabilities and the lowest priority to unobservable value inputs.  Levels within the hierarchy are defined as follows:

· Level 1—Unadjusted quoted prices for identical assets and liabilities in active markets;

· Level 2—Quoted prices for similar assets and liabilities in active markets (other than those included in Level 1) which are observable forthe asset or liability, either directly or indirectly; and

· Level 3—Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers areunobservable.

The following table sets forth financial assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheet and the respective levels to which the fair value measurements are classified within the fair value hierarchy as of March 31, 2016, and December 31, 2015 (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
March 31, 2016
Commodity futures — financial assets	$	1,642	$	—	$	1,642	$	—
Commodity futures — financial liabilities	3,177		—		3,177		—
December 31, 2015
Commodity futures — financial assets	$	1,765	$	—	$	1,765	$	—
Commodity futures — financial liabilities	3,925		—		3,925		—

The carrying amounts of financial instruments including cash and equivalents approximate fair value. The fair values of commodity futures contracts are estimated by the use of quoted market prices, estimates obtained from brokers, and other appropriate valuation techniques based on references available. The fair value of long-term debt, including current maturities, as determined by quoted market prices (Level 2), was approximately $2.6 billion and $2.5 billion (with a corresponding carrying amount in the consolidated balance sheets of $2.6 billion and $2.6 billion) at March 31, 2016, and December 31, 2015, respectively.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies

Commitments and Contingencies

Note 8.  Commitments and Contingencies

The company is involved, along with two other remaining steel manufacturing company defendants, in a class action antitrust suit in federal court in Chicago, Illinois, originally against eight companies. The Complaint alleges a conspiracy on the part of the original defendants to fix, raise, maintain and stabilize the price at which steel products were sold in the United States during a specified period between 2005 and 2007, by artificially restricting the supply of such steel products. All but one of the Complaints were brought on behalf of a purported class consisting of all direct purchasers of steel products. The other Complaint was brought on behalf of a purported class consisting of all indirect purchasers of steel products within the same time period.  In addition, another similar complaint was filed in December 2010 purporting to be on behalf of indirect purchasers of steel products in Tennessee. All Complaints have been consolidated in the Chicago action and seek treble damages and costs, including reasonable attorney fees, pre- and post-judgment interest and injunctive relief. Following an extensive period of discovery and related motions concerning class certification matters, the Court, on September 9, 2015, certified a class, limited, however, to the issue of the alleged conspiracy alone, and denied class certification on the issue of antitrust impact and damages.  As a result, some additional discovery is ongoing. The company has also filed a motion for summary judgment, as has co-defendant SSAB, and this matter is currently pending.

Due, however, to the uncertain nature of litigation, the company cannot presently determine the ultimate outcome of this litigation. Based on the information available at this time, the company has determined that there is not presently a “reasonable possibility” (as that term is defined in ASC 450-20-20), that the outcome of these legal proceedings would have a material impact on the Company’s financial condition, results of operations, or liquidity. Although not presently necessary or appropriate to make a dollar estimate of exposure to loss, if any, in connection with the above matter, the company may in the future determine that a loss accrual is necessary. Although the company may make loss accruals, if and as warranted, any amounts that it may accrue from time to time could vary significantly from the amounts it actually pays, due to inherent uncertainties and the inherent shortcomings of the estimation process, the uncertainties involved in litigation and other factors. Additionally, an adverse result could have a material effect on the company’s financial condition, results of operations and liquidity.

The company is involved in various routine litigation matters, including administrative proceedings, regulatory proceedings, governmental investigations, environmental matters, and commercial and construction contract disputes, none of which are expected to have a material impact on our financial condition, results of operations, or liquidity.

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Segment Information

3 Months Ended

Mar. 31, 2016

Segment Information

Segment Information

Note 9.  Segment Information

The company’s operations are primarily organized and managed by operating segment, which are steel operations, metals recycling operations, and steel fabrication operations. The segment operations are more fully described in Note 1 to the financial statements. Operating segment performance and resource allocations are primarily based on operating results before income taxes. The accounting policies of the reportable segments are consistent with those described in Note 1 to the financial statements. Intra-segment sales and any related profits are eliminated in consolidation. Amounts included in the category “Other” are from subsidiary operations that are below the quantitative thresholds required for reportable segments.  In addition, “Other” also includes certain unallocated corporate accounts, such as the company’s senior secured credit facility, senior notes, certain other investments and certain profit sharing expenses.

The company’s segment results for the three months ended March 31, 2016, and 2015, each adjusted consistent with our current reportable segments presentation, are as follows (in thousands):

For the three months ended			Metals Recycling			Steel Fabrication
March 31, 2016	Steel Operations		Operations			Operations		Other			Eliminations			Consolidated
Net Sales
External	$	1,156,969	$	236,757		$	180,041	$	74,626		$	—		$	1,648,393
External Non-U.S.	60,207		32,650			14		37			—			92,908
Other segments	41,212		217,778			26		1,226			(260,242		)	—
	1,258,388		487,185			180,081		75,889			(260,242		)	1,741,301
Operating income (loss)	132,275		2,767			32,016		(31,930		)(1)	(3,163		)(2)	131,965
Income (loss) before income taxes	109,375		(223		)	30,016		(39,291		)	(3,163		)	96,714
Depreciation and amortization	52,483		14,580			2,821		4,152			(51		)	73,985
Capital expenditures	23,904		3,080			604		120			—			27,708
As of March 31, 2016
Assets	$	3,836,481	$	1,048,643		$	315,659	$	1,295,859	(3)	$	(105,000	)(4)	$	6,391,642

Footnotes related to the three months ended March 31, 2016 segment results (in millions):

(1)	Corporate SG&A	$	(11.1	)
	Company-wide equity-based compensation	(7.0		)
	Profit sharing	(8.2		)
	Minnesota ironmaking operations	(4.3		)
	Other, net	(1.3		)
		$	(31.9	)
(2)	Gross profit decrease from intra-company sales	$	(3.2	)
(3)	Cash and equivalents	$	895.4
	Accounts receivable	22.7
	Inventories	30.2
	Property, plant and equipment, net	302.6
	Intra-company debt	6.8
	Other	38.2
		$	1,295.9
(4)	Elimination of intra-company receivables	$	(91.6	)
	Elimination of intra-company debt	(6.8		)
	Other	(6.6		)
		$	(105.0	)

For the three months ended			Metals Recycling			Steel Fabrication
March 31, 2015	Steel Operations		Operations			Operations		Other			Eliminations			Consolidated
Net Sales
External	$	1,313,426	$	374,292		$	161,024	$	75,232		$	—		$	1,923,974
External Non-U.S.	71,993		51,303			—		165			—			123,461
Other segments	48,903		226,416			4		18,203			(293,526		)	—
	1,434,322		652,011			161,028		93,600			(293,526		)	2,047,435
Operating income (loss)	114,965		(4,498		)	21,361		(35,902		)(1)	3,845		(2)	99,771
Income (loss) before income taxes	89,331		(10,536		)	19,594		(61,742		)	3,845			40,492
Depreciation and amortization	50,970		17,280			2,230		2,393			(51		)	72,822
Capital expenditures	16,200		6,415			1,037		9,699			—			33,351

Footnotes related to the three months ended March 31, 2015 segment results (in millions):

(1)	Corporate SG&A	$	(9.4	)
	Company-wide equity-based compensation	(5.9		)
	Profit sharing	(3.5		)
	Minnesota ironmaking operations	(13.0		)
	Other, net	(4.1		)
		$	(35.9	)
(2)	Gross profit increase from intra-company sales	$	3.8

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Condensed Consolidating Information

3 Months Ended

Mar. 31, 2016

Condensed Consolidating Information

Condensed Consolidating Information

Note 10.  Condensed Consolidating Information

Certain 100%-owned subsidiaries of SDI have fully and unconditionally guaranteed all of the indebtedness relating to the issuance of the company’s senior unsecured notes due 2019, 2021, 2022, 2023 and 2024. Following are the company’s condensed consolidating financial statements, including the guarantors, which present the financial position, results of operations, and cash flows of (i) SDI (in each case, reflecting investments in its consolidated subsidiaries under the equity method of accounting), (ii) the guarantor subsidiaries of SDI, (iii) the non-guarantor subsidiaries of SDI, and (iv) the eliminations necessary to arrive at the information on a consolidated basis. The following statements should be read in conjunction with the accompanying consolidated financial statements and the company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Condensed Consolidating Balance Sheets (in thousands)

						Combined			Consolidating			Total
As of March 31, 2016	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Cash and equivalents	$	887,690		$	75,082	$	14,179		$	—		$	976,951
Accounts receivable, net	219,883			1,128,020		32,979			(691,681		)	689,201
Inventories	516,467			518,657		34,105			(2,406		)	1,066,823
Other current assets	19,602			20,902		2,128			(1,374		)	41,258
Total current assets	1,643,642			1,742,661		83,391			(695,461		)	2,774,233
Property, plant and equipment, net	948,732			1,677,310		290,103			(1,959		)	2,914,186
Intangible assets, net	—			272,528		—			—			272,528
Goodwill	—			395,872		—			—			395,872
Other assets, including investments in subs	2,778,142			10,003		6,128			(2,759,450		)	34,823
Total assets	$	5,370,516		$	4,098,374	$	379,622		$	(3,456,870	)	$	6,391,642
Accounts payable	$	138,423		$	281,926	$	66,679		$	(73,453	)	$	413,575
Accrued expenses	146,230			185,090		4,590			(99,209		)	236,701
Current maturities of long-term debt	13,134			700		34,034			(25,098		)	22,770
Total current liabilities	297,787			467,716		105,303			(197,760		)	673,046
Long-term debt	2,544,789			—		171,390			(140,651		)	2,575,528
Other liabilities	(189,269		)	1,173,238		70,280			(618,687		)	435,562
Redeemable noncontrolling interests	—			—		126,340			—			126,340
Common stock	639			1,727,859		18,120			(1,745,979		)	639
Treasury stock	(392,348		)	—		—			—			(392,348		)
Additional paid-in-capital	1,115,008			117,737		653,787			(771,524		)	1,115,008
Retained earnings (deficit)	1,993,910			611,824		(629,555		)	17,731			1,993,910
Total Steel Dynamics, Inc. equity	2,717,209			2,457,420		42,352			(2,499,772		)	2,717,209
Noncontrolling interests	—			—		(136,043		)	—			(136,043		)
Total equity	2,717,209			2,457,420		(93,691		)	(2,499,772		)	2,581,166
Total liabilities and equity	$	5,370,516		$	4,098,374	$	379,622		$	(3,456,870	)	$	6,391,642

Condensed Consolidating Balance Sheets (in thousands)

						Combined			Consolidating			Total
As of December 31, 2015	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Cash and equivalents	$	636,877		$	81,976	$	8,179		$	—		$	727,032
Accounts receivable, net	200,094			1,056,285		29,775			(672,549		)	613,605
Inventories	539,963			573,924		35,004			499			1,149,390
Other current assets	21,654			25,415		1,676			(831		)	47,914
Total current assets	1,398,588			1,737,600		74,634			(672,881		)	2,537,941
Property, plant and equipment, net	958,212			1,703,932		291,077			(2,011		)	2,951,210
Intangible assets, net	—			278,960		—			—			278,960
Goodwill	—			397,470		—			—			397,470
Other assets, including investments in subs	2,941,710			10,040		6,137			(2,921,386		)	36,501
Total assets	$	5,298,510		$	4,128,002	$	371,848		$	(3,596,278	)	$	6,202,082
Accounts payable	$	100,751		$	183,344	$	68,948		$	(69,688	)	$	283,355
Accrued expenses	141,552			185,873		4,779			(96,949		)	235,255
Current maturities of long-term debt	13,122			700		24,975			(22,117		)	16,680
Total current liabilities	255,425			369,917		98,702			(188,754		)	535,290
Long-term debt	2,546,606			361		177,897			(146,888		)	2,577,976
Other liabilities	(183,248		)	1,342,541		63,020			(804,948		)	417,365
Redeemable noncontrolling interests	—			—		126,340			—			126,340
Common stock	638			1,727,859		18,120			(1,745,979		)	638
Treasury stock	(396,455		)	—		—			—			(396,455		)
Additional paid-in-capital	1,110,253			117,737		646,787			(764,524		)	1,110,253
Retained earnings (deficit)	1,965,291			569,587		(624,402		)	54,815			1,965,291
Total Steel Dynamics, Inc. equity	2,679,727			2,415,183		40,505			(2,455,688		)	2,679,727
Noncontrolling interests	—			—		(134,616		)	—			(134,616		)
Total equity	2,679,727			2,415,183		(94,111		)	(2,455,688		)	2,545,111
Total liabilities and equity	$	5,298,510		$	4,128,002	$	371,848		$	(3,596,278	)	$	6,202,082

Condensed Consolidating Statements of Operations (in thousands)

For the three months ended,						Combined			Consolidating			Total
March 31, 2016	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Net sales	$	657,814		$	1,857,344	$	85,740		$	(859,597	)	$	1,741,301
Costs of goods sold	548,179			1,701,821		91,030			(835,765		)	1,505,265
Gross profit (loss)	109,635			155,523		(5,290		)	(23,832		)	236,036
Selling, general and administrative	38,602			67,200		2,802			(4,533		)	104,071
Operating income (loss)	71,033			88,323		(8,092		)	(19,299		)	131,965
Interest expense, net of capitalized interest	18,187			18,400		2,260			(1,804		)	37,043
Other (income) expense, net	(2,208		)	2,190		(3,578		)	1,804			(1,792		)
Income (loss) before income taxes and equity in net loss of subsidiaries	55,054			67,733		(6,774		)	(19,299		)	96,714
Income taxes (benefit)	17,268			25,495		(271		)	(7,096		)	35,396
	37,786			42,238		(6,503		)	(12,203		)	61,318
Equity in net loss of subsidiaries	24,951			—		—			(24,951		)	—
Net loss attributable to noncontrolling interests	—			—		1,419			—			1,419
Net income (loss) attributable to Steel Dynamics, Inc.	$	62,737		$	42,238	$	(5,084	)	$	(37,154	)	$	62,737

For the three months ended,						Combined			Consolidating			Total
March 31, 2015	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Net sales	$	798,718		$	2,191,009	$	104,573		$	(1,046,865	)	$	2,047,435
Costs of goods sold	693,575			2,072,125		118,781			(1,024,088		)	1,860,393
Gross profit (loss)	105,143			118,884		(14,208		)	(22,777		)	187,042
Selling, general and administrative	30,743			58,033		3,365			(4,870		)	87,271
Operating income (loss)	74,400			60,851		(17,573		)	(17,907		)	99,771
Interest expense, net of capitalized interest	20,537			21,840		1,734			(1,024		)	43,087
Other (income) expense, net	15,652			688		(1,172		)	1,024			16,192
Income (loss) before income taxes and equity in net loss of subsidiaries	38,211			38,323		(18,135		)	(17,907		)	40,492
Income taxes (benefit)	6,941			13,034		(1,116		)	(5,321		)	13,538
	31,270			25,289		(17,019		)	(12,586		)	26,954
Equity in net loss of subsidiaries	(509		)	—		—			509			—
Net loss attributable to noncontrolling interests	—			—		3,807			—			3,807
Net income (loss) attributable to Steel Dynamics, Inc.	$	30,761		$	25,289	$	(13,212	)	$	(12,077	)	$	30,761

Condensed Consolidating Statements of Cash Flows (in thousands)

For the three months ended,							Combined			Consolidating			Total
March 31, 2016	Parent			Guarantors			Non-Guarantors			Adjustments			Consolidated
Net cash provided by operating activities	$	119,354		$	179,289		$	(6,917	)	$	(2,827	)	$	288,899
Net cash used in investing activities	(7,318		)	(9,974		)	(4,108		)	(3,254		)	(24,654		)
Net cash provided by (used in) financing activities	138,777			(176,209		)	17,025			6,081			(14,326		)
Increase (decrease) in cash and equivalents	250,813			(6,894		)	6,000			—			249,919
Cash and equivalents at beginning of period	636,877			81,976			8,179			—			727,032
Cash and equivalents at end of period	$	887,690		$	75,082		$	14,179		$	—		$	976,951

For the three months ended,							Combined			Consolidating			Total
March 31, 2015	Parent			Guarantors			Non-Guarantors			Adjustments			Consolidated
Net cash provided by operating activities	$	102,678		$	114,451		$	9,456		$	8,122		$	234,707
Net cash used in investing activities	(18,547		)	(12,949		)	(9,727		)	9,535			(31,688		)
Net cash used in financing activities	(218,903		)	(166,134		)	(706		)	(17,657		)	(403,400		)
Decrease in cash and equivalents	(134,772		)	(64,632		)	(977		)	—			(200,381		)
Cash and equivalents at beginning of period	265,313			81,690			14,360			—			361,363
Cash and equivalents at end of period	$	130,541		$	17,058		$	13,383		$	—		$	160,982

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Description of the Business and Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2016

Description of the Business and Significant Accounting Policies

Principles of Consolidation

Principles of Consolidation.  The consolidated financial statements include the accounts of SDI, together with its wholly and majority-owned or controlled subsidiaries, after elimination of significant intercompany accounts and transactions. Noncontrolling interests represent the noncontrolling owner’s proportionate share in the equity, income, or losses of the company’s majority-owned or controlled consolidated subsidiaries.

Use of Estimates

Use of Estimates.  These financial statements are prepared in conformity with accounting principles generally accepted in the United States, and accordingly, include amounts that require management to make estimates and assumptions that affect the amounts reported in the financial statements and in the notes thereto. Significant items subject to such estimates and assumptions include the carrying value of property, plant and equipment, intangible assets, and goodwill; valuation allowances for trade receivables, inventories and deferred income tax assets; unrecognized tax benefits; potential environmental liabilities; and litigation claims and settlements. Actual results may differ from these estimates and assumptions.

In the opinion of management, these financial statements reflect all normal recurring adjustments necessary for a fair presentation of the interim period results. These financial statements and notes should be read in conjunction with the audited financial statements and notes thereto included in the company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Goodwill

Goodwill.  The company’s goodwill is allocated to the following reporting units at March 31, 2016, and December 31, 2015, (in thousands):

		March 31,		December 31,
		2016		2015
Metals Recycling Segment:	OmniSource	$	107,441	$	109,039
	Butler Flat Roll Division, Structural and Rail Division, and Engineered Bar Division	95,000		95,000
Steel Segment:	The Techs	142,783		142,783
	Roanoke Bar Division	29,041		29,041
	Columbus Flat Roll Division	19,682		19,682
Fabrication Segment:	New Millennium Building Systems	1,925		1,925
		$	395,872	$	397,470

OmniSource goodwill decreased $1.6 million from December 31, 2015 to March 31, 2016, in recognition of the 2016 tax benefit related to the normal amortization of the component of OmniSource tax-deductible goodwill in excess of book goodwill.

Recently Issued Accounting Standards

Recently Issued Accounting Standards

In May 2014, the FASB issued guidance codified in ASC 606, Revenue Recognition — Revenue from Contracts with Customers, which amends the guidance in former ASC 605, Revenue Recognition.  The core principle of ASC 606 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Because the guidance in ASC 606 is principles-based, it can be applied to all contracts with customers regardless of industry-specific or transaction-specific fact patterns. Additionally, ASC 606 requires additional disclosures to help users of financial statements better understand the nature, amount, timing, and potential uncertainty of revenue that is recognized. This guidance is effective for annual and interim periods beginning after December 15, 2017, but can be early adopted for annual and interim periods ending after December 15, 2016. The company is currently evaluating the impact of the provisions of ASC 606, including the timing and method of adoption.

In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements — Going Concern (Subtopic 205-40: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern), effective for annual and interim periods ending after December 15, 2016. ASU 2014-15 requires management to evaluate whether there are conditions or events, considered in aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued. There are required disclosures if principal conditions or events are identified that raised substantial doubt about the entity’s ability to continue as a going concern (before consideration of management’s plans), as well as management’s evaluation of the significance of those conditions or events in relation to the entity’s ability to meet its obligations, and management’s plans that alleviated substantial doubt about the entity’s ability to continue as a going concern. This ASU is not expected to have any impact on our overall results of operations, financial position or cash flows.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory, which requires an entity to measure inventory at the lower of cost and net realizable value, rather than at the lower of cost or market.  This new guidance is effective for annual and interim periods beginning after December 15, 2016, but can be early adopted. The company is currently evaluating the impact of this ASU’s adoption.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842): which establishes a new lease accounting model that requires lessees to recognize a right of use asset and related lease liability for most leases having lease terms of more than 12 months.  Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases.  This new guidance is effective for annual and interim periods beginning after December 15, 2018, but can be early adopted.  The company is currently evaluating the impact of the provisions of ASU 2016-02, including the timing of adoption.

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Description of the Business and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Description of the Business and Significant Accounting Policies

Schedule of goodwill allocated to reporting units

The company’s goodwill is allocated to the following reporting units at March 31, 2016, and December 31, 2015, (in thousands):

		March 31,		December 31,
		2016		2015
Metals Recycling Segment:	OmniSource	$	107,441	$	109,039
	Butler Flat Roll Division, Structural and Rail Division, and Engineered Bar Division	95,000		95,000
Steel Segment:	The Techs	142,783		142,783
	Roanoke Bar Division	29,041		29,041
	Columbus Flat Roll Division	19,682		19,682
Fabrication Segment:	New Millennium Building Systems	1,925		1,925
		$	395,872	$	397,470

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share

Schedule of reconciliation of the numerators and denominators used in calculating basic and diluted earnings per share

The following table presents a reconciliation of the numerators and the denominators of the company’s basic and diluted earnings per share computations for the three month periods ended March 31, 2016, and 2015 (in thousands, except per share data):

	Three Months Ended March 31,
	2016					2015
	Net Income (Numerator)		Shares (Denominator)	Per Share Amount		Net Income (Numerator)		Shares (Denominator)	Per Share Amount
Basic earnings per share	$	62,737	243,202	$	0.26	$	30,761	241,535	$	0.13
Dilutive common share equivalents	—		1,406			—		1,332
Diluted earnings per share	$	62,737	244,608	$	0.26	$	30,761	242,867	$	0.13

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Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventories

Schedule of inventories

Inventory consisted of the following (in thousands):

	March 31,		December 31,
	2016		2015
Raw materials	$	353,681	$	419,608
Supplies	390,362		396,349
Work in progress	88,139		90,486
Finished goods	234,641		242,947
Total inventories	$	1,066,823	$	1,149,390

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Changes in Equity (Tables)

3 Months Ended

Mar. 31, 2016

Changes in Equity

Schedule of stockholders' equity

The following table provides a reconciliation of the beginning and ending carrying amounts of total equity, equity attributable to stockholders of Steel Dynamics, Inc. and equity and redeemable amounts attributable to the noncontrolling interests (in thousands):

	Stockholders of Steel Dynamics, Inc.
	Common		Additional Paid-In		Retained			Treasury			Noncontrolling			Total			Redeemable Noncontrolling
	Stock		Capital		Earnings			Stock			Interests			Equity			Interests
Balances at December  31, 2015	$	638	$	1,110,253	$	1,965,291		$	(396,455	)	$	(134,616	)	$	2,545,111		$	126,340
Exercise of stock options proceeds, including related tax effect	1		2,892		—			—			—			2,893			—
Dividends declared	—		—		(34,090		)	—			—			(34,090		)	—
Distributions to noncontrolling investors, net	—		—		—			—			(8		)	(8		)	—
Equity-based compensation	—		1,863		(28		)	4,107			—			5,942			—
Comprehensive and net income (loss)	—		—		62,737			—			(1,419		)	61,318			—
Balances at March  31, 2016	$	639	$	1,115,008	$	1,993,910		$	(392,348	)	$	(136,043	)	$	2,581,166		$	126,340

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Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2016

Derivative Financial Instruments

Commodity futures contract commitments for non monetary notional amount

The following summarizes the company’s futures contract commitments as of March 31, 2016 (MT represents metric tons and Lbs represents pounds):

Commodity Futures	Long/Short	Total
Aluminum	Long	3,075	MT
Aluminum	Short	1,125	MT
Copper	Long	8,736	MT
Copper	Short	11,796	MT
Silver	Short	343	Lbs

Summary of the location and amounts of the fair values and gains or losses related to derivatives included in the entity's financial statements

The following summarizes the location and amounts of the fair values reported on the company’s balance sheets as of March 31, 2016, and December 31, 2015, and gains and losses related to derivatives included in the company’s statement of income for the three months ended March 31, 2016, and 2015 (in thousands):

	Asset Derivatives					Liability Derivatives
		Fair Value				Fair Value
	Balance sheet location	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Derivative instruments designatedas fair value hedges -
Commodity futures	Other current assets	$	890	$	857	$	1,945	$	2,860
Derivative instruments not designated as hedges -
Commodity futures	Other current assets	752		908		1,232		1,065
Total derivative instruments		$	1,642	$	1,765	$	3,177	$	3,925

		Amount of gain (loss)								Amount of gain (loss)
		recognized in income on								recognized in income on
	Location of gain	derivatives for the three							Location of gain	related hedged items for
	(loss) recognized	months ended						Hedged items	(loss) recognized	the three months ended
	in income on	March 31,			March 31,			in fair value	in income on	March 31,			March 31,
	derivatives	2016			2015			hedge	derivatives	2016			2015
Derivatives in fair value hedging relationships -
Commodity futures	Costs of goods sold	$	932		$	(4,313	)	Firm commitments	Costs of goods sold	$	(1,222	)	$	494
								Inventory	Costs of goods sold	278			2,656
										$	(944	)	$	3,150
Derivatives not designated as hedging instruments -
Commodity futures	Costs of goods sold	$	(872	)	$	6,996

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Measurements

Schedule of assets and liabilities measured at fair value on a recurring basis

The following table sets forth financial assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheet and the respective levels to which the fair value measurements are classified within the fair value hierarchy as of March 31, 2016, and December 31, 2015 (in thousands):

	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
March 31, 2016
Commodity futures — financial assets	$	1,642	$	—	$	1,642	$	—
Commodity futures — financial liabilities	3,177		—		3,177		—
December 31, 2015
Commodity futures — financial assets	$	1,765	$	—	$	1,765	$	—
Commodity futures — financial liabilities	3,925		—		3,925		—

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Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Information

Schedule of operating segment results

The company’s segment results for the three months ended March 31, 2016, and 2015, each adjusted consistent with our current reportable segments presentation, are as follows (in thousands):

For the three months ended			Metals Recycling			Steel Fabrication
March 31, 2016	Steel Operations		Operations			Operations		Other			Eliminations			Consolidated
Net Sales
External	$	1,156,969	$	236,757		$	180,041	$	74,626		$	—		$	1,648,393
External Non-U.S.	60,207		32,650			14		37			—			92,908
Other segments	41,212		217,778			26		1,226			(260,242		)	—
	1,258,388		487,185			180,081		75,889			(260,242		)	1,741,301
Operating income (loss)	132,275		2,767			32,016		(31,930		)(1)	(3,163		)(2)	131,965
Income (loss) before income taxes	109,375		(223		)	30,016		(39,291		)	(3,163		)	96,714
Depreciation and amortization	52,483		14,580			2,821		4,152			(51		)	73,985
Capital expenditures	23,904		3,080			604		120			—			27,708
As of March 31, 2016
Assets	$	3,836,481	$	1,048,643		$	315,659	$	1,295,859	(3)	$	(105,000	)(4)	$	6,391,642

Footnotes related to the three months ended March 31, 2016 segment results (in millions):

(1)	Corporate SG&A	$	(11.1	)
	Company-wide equity-based compensation	(7.0		)
	Profit sharing	(8.2		)
	Minnesota ironmaking operations	(4.3		)
	Other, net	(1.3		)
		$	(31.9	)
(2)	Gross profit decrease from intra-company sales	$	(3.2	)
(3)	Cash and equivalents	$	895.4
	Accounts receivable	22.7
	Inventories	30.2
	Property, plant and equipment, net	302.6
	Intra-company debt	6.8
	Other	38.2
		$	1,295.9
(4)	Elimination of intra-company receivables	$	(91.6	)
	Elimination of intra-company debt	(6.8		)
	Other	(6.6		)
		$	(105.0	)

For the three months ended			Metals Recycling			Steel Fabrication
March 31, 2015	Steel Operations		Operations			Operations		Other			Eliminations			Consolidated
Net Sales
External	$	1,313,426	$	374,292		$	161,024	$	75,232		$	—		$	1,923,974
External Non-U.S.	71,993		51,303			—		165			—			123,461
Other segments	48,903		226,416			4		18,203			(293,526		)	—
	1,434,322		652,011			161,028		93,600			(293,526		)	2,047,435
Operating income (loss)	114,965		(4,498		)	21,361		(35,902		)(1)	3,845		(2)	99,771
Income (loss) before income taxes	89,331		(10,536		)	19,594		(61,742		)	3,845			40,492
Depreciation and amortization	50,970		17,280			2,230		2,393			(51		)	72,822
Capital expenditures	16,200		6,415			1,037		9,699			—			33,351

Footnotes related to the three months ended March 31, 2015 segment results (in millions):

(1)	Corporate SG&A	$	(9.4	)
	Company-wide equity-based compensation	(5.9		)
	Profit sharing	(3.5		)
	Minnesota ironmaking operations	(13.0		)
	Other, net	(4.1		)
		$	(35.9	)
(2)	Gross profit increase from intra-company sales	$	3.8

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Condensed Consolidating Information (Tables)

3 Months Ended

Mar. 31, 2016

Condensed Consolidating Information

Schedule of Condensed Consolidating Balance Sheets

Condensed Consolidating Balance Sheets (in thousands)

						Combined			Consolidating			Total
As of March 31, 2016	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Cash and equivalents	$	887,690		$	75,082	$	14,179		$	—		$	976,951
Accounts receivable, net	219,883			1,128,020		32,979			(691,681		)	689,201
Inventories	516,467			518,657		34,105			(2,406		)	1,066,823
Other current assets	19,602			20,902		2,128			(1,374		)	41,258
Total current assets	1,643,642			1,742,661		83,391			(695,461		)	2,774,233
Property, plant and equipment, net	948,732			1,677,310		290,103			(1,959		)	2,914,186
Intangible assets, net	—			272,528		—			—			272,528
Goodwill	—			395,872		—			—			395,872
Other assets, including investments in subs	2,778,142			10,003		6,128			(2,759,450		)	34,823
Total assets	$	5,370,516		$	4,098,374	$	379,622		$	(3,456,870	)	$	6,391,642
Accounts payable	$	138,423		$	281,926	$	66,679		$	(73,453	)	$	413,575
Accrued expenses	146,230			185,090		4,590			(99,209		)	236,701
Current maturities of long-term debt	13,134			700		34,034			(25,098		)	22,770
Total current liabilities	297,787			467,716		105,303			(197,760		)	673,046
Long-term debt	2,544,789			—		171,390			(140,651		)	2,575,528
Other liabilities	(189,269		)	1,173,238		70,280			(618,687		)	435,562
Redeemable noncontrolling interests	—			—		126,340			—			126,340
Common stock	639			1,727,859		18,120			(1,745,979		)	639
Treasury stock	(392,348		)	—		—			—			(392,348		)
Additional paid-in-capital	1,115,008			117,737		653,787			(771,524		)	1,115,008
Retained earnings (deficit)	1,993,910			611,824		(629,555		)	17,731			1,993,910
Total Steel Dynamics, Inc. equity	2,717,209			2,457,420		42,352			(2,499,772		)	2,717,209
Noncontrolling interests	—			—		(136,043		)	—			(136,043		)
Total equity	2,717,209			2,457,420		(93,691		)	(2,499,772		)	2,581,166
Total liabilities and equity	$	5,370,516		$	4,098,374	$	379,622		$	(3,456,870	)	$	6,391,642

Condensed Consolidating Balance Sheets (in thousands)

						Combined			Consolidating			Total
As of December 31, 2015	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Cash and equivalents	$	636,877		$	81,976	$	8,179		$	—		$	727,032
Accounts receivable, net	200,094			1,056,285		29,775			(672,549		)	613,605
Inventories	539,963			573,924		35,004			499			1,149,390
Other current assets	21,654			25,415		1,676			(831		)	47,914
Total current assets	1,398,588			1,737,600		74,634			(672,881		)	2,537,941
Property, plant and equipment, net	958,212			1,703,932		291,077			(2,011		)	2,951,210
Intangible assets, net	—			278,960		—			—			278,960
Goodwill	—			397,470		—			—			397,470
Other assets, including investments in subs	2,941,710			10,040		6,137			(2,921,386		)	36,501
Total assets	$	5,298,510		$	4,128,002	$	371,848		$	(3,596,278	)	$	6,202,082
Accounts payable	$	100,751		$	183,344	$	68,948		$	(69,688	)	$	283,355
Accrued expenses	141,552			185,873		4,779			(96,949		)	235,255
Current maturities of long-term debt	13,122			700		24,975			(22,117		)	16,680
Total current liabilities	255,425			369,917		98,702			(188,754		)	535,290
Long-term debt	2,546,606			361		177,897			(146,888		)	2,577,976
Other liabilities	(183,248		)	1,342,541		63,020			(804,948		)	417,365
Redeemable noncontrolling interests	—			—		126,340			—			126,340
Common stock	638			1,727,859		18,120			(1,745,979		)	638
Treasury stock	(396,455		)	—		—			—			(396,455		)
Additional paid-in-capital	1,110,253			117,737		646,787			(764,524		)	1,110,253
Retained earnings (deficit)	1,965,291			569,587		(624,402		)	54,815			1,965,291
Total Steel Dynamics, Inc. equity	2,679,727			2,415,183		40,505			(2,455,688		)	2,679,727
Noncontrolling interests	—			—		(134,616		)	—			(134,616		)
Total equity	2,679,727			2,415,183		(94,111		)	(2,455,688		)	2,545,111
Total liabilities and equity	$	5,298,510		$	4,128,002	$	371,848		$	(3,596,278	)	$	6,202,082

Schedule of Condensed Consolidating Statements of Operations

Condensed Consolidating Statements of Operations (in thousands)

For the three months ended,						Combined			Consolidating			Total
March 31, 2016	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Net sales	$	657,814		$	1,857,344	$	85,740		$	(859,597	)	$	1,741,301
Costs of goods sold	548,179			1,701,821		91,030			(835,765		)	1,505,265
Gross profit (loss)	109,635			155,523		(5,290		)	(23,832		)	236,036
Selling, general and administrative	38,602			67,200		2,802			(4,533		)	104,071
Operating income (loss)	71,033			88,323		(8,092		)	(19,299		)	131,965
Interest expense, net of capitalized interest	18,187			18,400		2,260			(1,804		)	37,043
Other (income) expense, net	(2,208		)	2,190		(3,578		)	1,804			(1,792		)
Income (loss) before income taxes and equity in net loss of subsidiaries	55,054			67,733		(6,774		)	(19,299		)	96,714
Income taxes (benefit)	17,268			25,495		(271		)	(7,096		)	35,396
	37,786			42,238		(6,503		)	(12,203		)	61,318
Equity in net loss of subsidiaries	24,951			—		—			(24,951		)	—
Net loss attributable to noncontrolling interests	—			—		1,419			—			1,419
Net income (loss) attributable to Steel Dynamics, Inc.	$	62,737		$	42,238	$	(5,084	)	$	(37,154	)	$	62,737

For the three months ended,						Combined			Consolidating			Total
March 31, 2015	Parent			Guarantors		Non-Guarantors			Adjustments			Consolidated
Net sales	$	798,718		$	2,191,009	$	104,573		$	(1,046,865	)	$	2,047,435
Costs of goods sold	693,575			2,072,125		118,781			(1,024,088		)	1,860,393
Gross profit (loss)	105,143			118,884		(14,208		)	(22,777		)	187,042
Selling, general and administrative	30,743			58,033		3,365			(4,870		)	87,271
Operating income (loss)	74,400			60,851		(17,573		)	(17,907		)	99,771
Interest expense, net of capitalized interest	20,537			21,840		1,734			(1,024		)	43,087
Other (income) expense, net	15,652			688		(1,172		)	1,024			16,192
Income (loss) before income taxes and equity in net loss of subsidiaries	38,211			38,323		(18,135		)	(17,907		)	40,492
Income taxes (benefit)	6,941			13,034		(1,116		)	(5,321		)	13,538
	31,270			25,289		(17,019		)	(12,586		)	26,954
Equity in net loss of subsidiaries	(509		)	—		—			509			—
Net loss attributable to noncontrolling interests	—			—		3,807			—			3,807
Net income (loss) attributable to Steel Dynamics, Inc.	$	30,761		$	25,289	$	(13,212	)	$	(12,077	)	$	30,761

Schedule of Condensed Consolidating Statements of Cash Flows

Condensed Consolidating Statements of Cash Flows (in thousands)

For the three months ended,							Combined			Consolidating			Total
March 31, 2016	Parent			Guarantors			Non-Guarantors			Adjustments			Consolidated
Net cash provided by operating activities	$	119,354		$	179,289		$	(6,917	)	$	(2,827	)	$	288,899
Net cash used in investing activities	(7,318		)	(9,974		)	(4,108		)	(3,254		)	(24,654		)
Net cash provided by (used in) financing activities	138,777			(176,209		)	17,025			6,081			(14,326		)
Increase (decrease) in cash and equivalents	250,813			(6,894		)	6,000			—			249,919
Cash and equivalents at beginning of period	636,877			81,976			8,179			—			727,032
Cash and equivalents at end of period	$	887,690		$	75,082		$	14,179		$	—		$	976,951

For the three months ended,							Combined			Consolidating			Total
March 31, 2015	Parent			Guarantors			Non-Guarantors			Adjustments			Consolidated
Net cash provided by operating activities	$	102,678		$	114,451		$	9,456		$	8,122		$	234,707
Net cash used in investing activities	(18,547		)	(12,949		)	(9,727		)	9,535			(31,688		)
Net cash used in financing activities	(218,903		)	(166,134		)	(706		)	(17,657		)	(403,400		)
Decrease in cash and equivalents	(134,772		)	(64,632		)	(977		)	—			(200,381		)
Cash and equivalents at beginning of period	265,313			81,690			14,360			—			361,363
Cash and equivalents at end of period	$	130,541		$	17,058		$	13,383		$	—		$	160,982

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Description of the Business and Significant Accounting Policies - Segments (Details)	3 Months Ended
	Mar. 31, 2016 segment item facility	Mar. 31, 2015
Segment Reporting Information
Number of reporting segments | segment	3
Steel Operations
Segment Reporting Information
Number of downstream coating facilities | facility	10
Percentage of external net sales	70.00%	68.00%
Metals Recycling Operations
Segment Reporting Information
Percentage of external net sales	15.00%	21.00%
Steel Fabrication Operations
Segment Reporting Information
Percentage of external net sales	10.00%	8.00%
Number of New Millennium Building Systems' joist and deck plants | item	8

XML

Description of the Business and Significant Accounting Policies - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Goodwill
Goodwill	$ 395,872	$ 397,470
OmniSource
Goodwill
Goodwill decrease due to tax benefit related to the normal amortization of the component	1,600
Metals Recycling Operations | OmniSource
Goodwill
Goodwill	107,441	109,039
Metals Recycling Operations | Butler Flat Roll Division, Structural and Rail Division, and Engineered Bar Division
Goodwill
Goodwill	95,000	95,000
Steel Operations | The Techs
Goodwill
Goodwill	142,783	142,783
Steel Operations | Roanoke Bar Division
Goodwill
Goodwill	29,041	29,041
Steel Operations | Columbus Flat Roll Division
Goodwill
Goodwill	19,682	19,682
Steel Fabrication Operations | New Millennium Building Systems
Goodwill
Goodwill	$ 1,925	$ 1,925

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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net Income (Loss) (Numerator)
Basic earnings per share - net income (in dollars)	$ 62,737	$ 30,761
Diluted earnings per share - net income (in dollars)	$ 62,737	$ 30,761
Weighted average common shares outstanding (in shares)
Weighted average common shares outstanding - basic (in shares)	243,202,000	241,535,000
Dilutive common share equivalents (in shares)	1,406,000	1,332,000
Weighted average common shares outstanding - diluted (in shares)	244,608,000	242,867,000
Per Share Amount
Basic (in dollars per share)	$ 0.26	$ 0.13
Diluted (in dollars per share)	$ 0.26	$ 0.13
Options
Antidilutive securities excluded from computation of earnings per share amount
Antidilutive common share equivalents excluded from computation of earnings per share amount (in shares)	0	0

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Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Inventories
Raw materials	$ 353,681	$ 419,608
Supplies	390,362	396,349
Work in progress	88,139	90,486
Finished goods	234,641	242,947
Total inventories	$ 1,066,823	$ 1,149,390

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Debt (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 16, 2015	Mar. 31, 2016	Mar. 31, 2015
Debt
Repayments of debt		$ 4,232	$ 427,451
7 5/8% senior notes, due 2020
Debt
Repayments of debt	$ 350,000
Stated interest rate (as a percent)	7.625%
Redemption price of debt instrument (as a percent)	103.813%
Associated premiums and related expenses recorded	$ 16,700

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Changes in Equity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Increase (Decrease) in Equity
Balances	$ 2,545,111
Exercise of stock options proceeds, including related tax effect	2,893
Dividends declared	(34,090)
Distributions to noncontrolling investors, net	(8)
Equity-based compensation	5,942
Comprehensive and net income (loss)	61,318
Balances	2,581,166
Common Stock
Increase (Decrease) in Equity
Balances	638
Exercise of stock options proceeds, including related tax effect	1
Balances	639
Additional Paid-in Capital
Increase (Decrease) in Equity
Balances	1,110,253
Exercise of stock options proceeds, including related tax effect	2,892
Equity-based compensation	1,863
Balances	1,115,008
Retained Earnings
Increase (Decrease) in Equity
Balances	1,965,291
Dividends declared	(34,090)
Equity-based compensation	(28)
Comprehensive and net income (loss)	62,737
Balances	1,993,910
Treasury Stock
Increase (Decrease) in Equity
Balances	(396,455)
Equity-based compensation	4,107
Balances	(392,348)
Noncontrolling Interests
Increase (Decrease) in Equity
Balances	(134,616)
Distributions to noncontrolling investors, net	(8)
Comprehensive and net income (loss)	(1,419)
Balances	(136,043)
Redeemable Noncontrolling Interest
Increase (Decrease) in Equity
Balances	126,340
Balances	$ 126,340

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Derivative Financial Instruments (Details)	3 Months Ended
	Mar. 31, 2016 USD ($) lb Mt	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Designated as hedging instrument
Gains or losses on derivative instruments, statement of income
Amount of gain (loss) recognized in income on related hedged items	$ (944,000)	$ 3,150,000
Commodity contract | Futures
Fair values of derivative instruments, balance sheet
Commodity futures, asset derivatives (in dollars)	1,642,000		$ 1,765,000
Commodity futures, liability derivatives (in dollars)	3,177,000		3,925,000
Commodity contract | Futures | Other current assets
Fair values of derivative instruments, balance sheet
Fair value of derivatives including required margin deposits	2,500,000		3,400,000
Commodity contract | Futures | Designated as hedging instrument
Gains or losses on derivative instruments, statement of income
Ineffectiveness - amount of gain (loss) recognized in income on related hedged items	(45,000)	107,000
Gain (loss) excluded from hedge effectiveness testing	32,000	(1,300,000)
Commodity contract | Futures | Designated as hedging instrument | Cost of goods sold
Gains or losses on derivative instruments, statement of income
Amount of gain (loss) recognized in income on derivatives	932,000	(4,313,000)
Commodity contract | Futures | Designated as hedging instrument | Other current assets
Fair values of derivative instruments, balance sheet
Commodity futures, asset derivatives (in dollars)	890,000		857,000
Commodity futures, liability derivatives (in dollars)	1,945,000		2,860,000
Commodity contract | Futures | Not designated as hedging instrument | Cost of goods sold
Gains or losses on derivative instruments, statement of income
Amount of gain (loss) recognized in income on derivatives	(872,000)	6,996,000
Commodity contract | Futures | Not designated as hedging instrument | Other current assets
Fair values of derivative instruments, balance sheet
Commodity futures, asset derivatives (in dollars)	752,000		908,000
Commodity futures, liability derivatives (in dollars)	$ 1,232,000		$ 1,065,000
Commodity contract | Futures | Aluminum | Long
Commodity contract commitments
Commodity contract (in MT/Lbs) | Mt	3,075
Commodity contract | Futures | Aluminum | Short
Commodity contract commitments
Commodity contract (in MT/Lbs) | Mt	1,125
Commodity contract | Futures | Copper | Long
Commodity contract commitments
Commodity contract (in MT/Lbs) | Mt	8,736
Commodity contract | Futures | Copper | Short
Commodity contract commitments
Commodity contract (in MT/Lbs) | Mt	11,796
Commodity contract | Futures | Silver | Short
Commodity contract commitments
Commodity contract (in MT/Lbs) | lb	343
Firm commitments | Designated as hedging instrument | Cost of goods sold
Gains or losses on derivative instruments, statement of income
Amount of gain (loss) recognized in income on related hedged items	$ (1,222,000)	494,000
Inventory | Designated as hedging instrument | Cost of goods sold
Gains or losses on derivative instruments, statement of income
Amount of gain (loss) recognized in income on related hedged items	$ 278,000	$ 2,656,000

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Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets and liabilities subject to fair value measurements
Outstanding Balance	$ 2,600,000	$ 2,600,000
Commodity contract | Futures
Assets and liabilities subject to fair value measurements
Commodity futures - financial assets	1,642	1,765
Commodity futures - financial liabilities	3,177	3,925
Recurring | Total | Commodity contract | Futures
Assets and liabilities subject to fair value measurements
Commodity futures - financial assets	1,642	1,765
Commodity futures - financial liabilities	3,177	3,925
Recurring | Level 2
Assets and liabilities subject to fair value measurements
Fair value of long-term debt, including current maturities	2,600,000	2,500,000
Recurring | Level 2 | Commodity contract | Futures
Assets and liabilities subject to fair value measurements
Commodity futures - financial assets	1,642	1,765
Commodity futures - financial liabilities	$ 3,177	$ 3,925

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Commitments and Contingencies (Details)	Mar. 31, 2016 company
Commitments and Contingencies
Number of other remaining steel manufacturing company defendants served with a class action antitrust complaint	2
Number of original steel manufacturing company defendants served with a class action antitrust complaint	8

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Segment Information - Results (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information
Total net sales	$ 1,741,301	$ 2,047,435
Operating income (loss)	131,965	99,771
Income (loss) before income taxes	96,714	40,492
Depreciation and amortization	73,985	72,822
Capital expenditures	27,708	33,351
Assets	6,391,642		$ 6,202,082
U.S.
Segment Reporting Information
Total net sales	1,648,393	1,923,974
Non-U.S.
Segment Reporting Information
Total net sales	92,908	123,461
Operating Segment
Segment Reporting Information
Total net sales	1,741,301	2,047,435
Operating Segment | Steel Operations
Segment Reporting Information
Total net sales	1,258,388	1,434,322
Operating income (loss)	132,275	114,965
Income (loss) before income taxes	109,375	89,331
Depreciation and amortization	52,483	50,970
Capital expenditures	23,904	16,200
Assets	3,836,481
Operating Segment | Steel Operations | Other segments
Segment Reporting Information
Total net sales	41,212	48,903
Operating Segment | Steel Operations | U.S.
Segment Reporting Information
Total net sales	1,156,969	1,313,426
Operating Segment | Steel Operations | Non-U.S.
Segment Reporting Information
Total net sales	60,207	71,993
Operating Segment | Metals Recycling Operations
Segment Reporting Information
Total net sales	487,185	652,011
Operating income (loss)	2,767	(4,498)
Income (loss) before income taxes	(223)	(10,536)
Depreciation and amortization	14,580	17,280
Capital expenditures	3,080	6,415
Assets	1,048,643
Operating Segment | Metals Recycling Operations | Other segments
Segment Reporting Information
Total net sales	217,778	226,416
Operating Segment | Metals Recycling Operations | U.S.
Segment Reporting Information
Total net sales	236,757	374,292
Operating Segment | Metals Recycling Operations | Non-U.S.
Segment Reporting Information
Total net sales	32,650	51,303
Operating Segment | Steel Fabrication Operations
Segment Reporting Information
Total net sales	180,081	161,028
Operating income (loss)	32,016	21,361
Income (loss) before income taxes	30,016	19,594
Depreciation and amortization	2,821	2,230
Capital expenditures	604	1,037
Assets	315,659
Operating Segment | Steel Fabrication Operations | Other segments
Segment Reporting Information
Total net sales	26	4
Operating Segment | Steel Fabrication Operations | U.S.
Segment Reporting Information
Total net sales	180,041	161,024
Operating Segment | Steel Fabrication Operations | Non-U.S.
Segment Reporting Information
Total net sales	14
Operating Segment | Other
Segment Reporting Information
Total net sales	75,889	93,600
Operating income (loss)	(31,930)	(35,902)
Income (loss) before income taxes	(39,291)	(61,742)
Depreciation and amortization	4,152	2,393
Capital expenditures	120	9,699
Assets	1,295,859
Operating Segment | Other | Other segments
Segment Reporting Information
Total net sales	1,226	18,203
Operating Segment | Other | U.S.
Segment Reporting Information
Total net sales	74,626	75,232
Operating Segment | Other | Non-U.S.
Segment Reporting Information
Total net sales	37	165
Eliminations
Segment Reporting Information
Total net sales	(260,242)	(293,526)
Operating income (loss)	(3,163)	3,845
Income (loss) before income taxes	(3,163)	3,845
Depreciation and amortization	(51)	(51)
Assets	(105,000)
Eliminations | Other segments
Segment Reporting Information
Total net sales	$ (260,242)	$ (293,526)

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Segment Information - Other Footnote (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Operating income (loss)
Corporate SG & A	$ (87,530)	$ (76,350)
Profit sharing	(9,291)	(4,598)
Operating income (loss)	131,965	99,771
Assets
Cash and equivalents	976,951	160,982	$ 727,032	$ 361,363
Accounts receivable	689,201		613,605
Inventories	1,066,823		1,149,390
Property, plant and equipment, net	2,914,186		2,951,210
Other	34,823		36,501
Total assets	6,391,642		$ 6,202,082
Operating Segment | Other
Operating income (loss)
Corporate SG & A	(11,100)	(9,400)
Company-wide equity- based compensation	(7,000)	(5,900)
Profit sharing	(8,200)	(3,500)
Other, net	(1,300)	(4,100)
Operating income (loss)	(31,930)	(35,902)
Assets
Cash and equivalents	895,400
Accounts receivable	22,700
Inventories	30,200
Property, plant and equipment, net	302,600
Intra-company debt	6,800
Other	38,200
Total assets	1,295,859
Operating Segment | Other | MINNESOTA | Minnesota ironmaking operations
Operating income (loss)
Operating income (loss)	$ (4,300)	$ (13,000)

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Segment Information - Eliminations Footnote (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Operating income (loss)
Gross profit	$ 236,036	$ 187,042
Assets elimination
Accounts receivable	689,201		$ 613,605
Other	34,823		36,501
Total assets	6,391,642		$ 6,202,082
Eliminations
Operating income (loss)
Gross profit	(3,200)	$ 3,800
Assets elimination
Accounts receivable	(91,600)
Elimination of intra-company debt	(6,800)
Other	(6,600)
Total assets	$ (105,000)

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Condensed Consolidating Information - Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Condensed Consolidating Balance Sheets
Ownership interest in subsidiaries (as a percent)	100.00%
Cash and equivalents	$ 976,951	$ 727,032	$ 160,982	$ 361,363
Accounts receivable, net	689,201	613,605
Inventories	1,066,823	1,149,390
Other current assets	41,258	47,914
Total current assets	2,774,233	2,537,941
Property, plant and equipment, net	2,914,186	2,951,210
Intangible assets, net	272,528	278,960
Goodwill	395,872	397,470
Other assets, including investments in subs	34,823	36,501
Total assets	6,391,642	6,202,082
Accounts payable	413,575	283,355
Accrued expenses	236,701	235,255
Current maturities of long-term debt	22,770	16,680
Total current liabilities	673,046	535,290
Long-term debt	2,575,528	2,577,976
Other liabilities	435,562	417,365
Redeemable noncontrolling interests	126,340	126,340
Common stock	639	638
Treasury stock	(392,348)	(396,455)
Additional paid-in capital	1,115,008	1,110,253
Retained earnings (deficit)	1,993,910	1,965,291
Total Steel Dynamics, Inc. equity	2,717,209	2,679,727
Noncontrolling interests	(136,043)	(134,616)
Total equity	2,581,166	2,545,111
Total liabilities and equity	6,391,642	6,202,082
Reportable legal entity | Parent
Condensed Consolidating Balance Sheets
Cash and equivalents	887,690	636,877	130,541	265,313
Accounts receivable, net	219,883	200,094
Inventories	516,467	539,963
Other current assets	19,602	21,654
Total current assets	1,643,642	1,398,588
Property, plant and equipment, net	948,732	958,212
Other assets, including investments in subs	2,778,142	2,941,710
Total assets	5,370,516	5,298,510
Accounts payable	138,423	100,751
Accrued expenses	146,230	141,552
Current maturities of long-term debt	13,134	13,122
Total current liabilities	297,787	255,425
Long-term debt	2,544,789	2,546,606
Other liabilities	(189,269)	(183,248)
Common stock	639	638
Treasury stock	(392,348)	(396,455)
Additional paid-in capital	1,115,008	1,110,253
Retained earnings (deficit)	1,993,910	1,965,291
Total Steel Dynamics, Inc. equity	2,717,209	2,679,727
Total equity	2,717,209	2,679,727
Total liabilities and equity	5,370,516	5,298,510
Reportable legal entity | Guarantors
Condensed Consolidating Balance Sheets
Cash and equivalents	75,082	81,976	17,058	81,690
Accounts receivable, net	1,128,020	1,056,285
Inventories	518,657	573,924
Other current assets	20,902	25,415
Total current assets	1,742,661	1,737,600
Property, plant and equipment, net	1,677,310	1,703,932
Intangible assets, net	272,528	278,960
Goodwill	395,872	397,470
Other assets, including investments in subs	10,003	10,040
Total assets	4,098,374	4,128,002
Accounts payable	281,926	183,344
Accrued expenses	185,090	185,873
Current maturities of long-term debt	700	700
Total current liabilities	467,716	369,917
Long-term debt		361
Other liabilities	1,173,238	1,342,541
Common stock	1,727,859	1,727,859
Additional paid-in capital	117,737	117,737
Retained earnings (deficit)	611,824	569,587
Total Steel Dynamics, Inc. equity	2,457,420	2,415,183
Total equity	2,457,420	2,415,183
Total liabilities and equity	4,098,374	4,128,002
Reportable legal entity | Combined Non-Guarantors
Condensed Consolidating Balance Sheets
Cash and equivalents	14,179	8,179	$ 13,383	$ 14,360
Accounts receivable, net	32,979	29,775
Inventories	34,105	35,004
Other current assets	2,128	1,676
Total current assets	83,391	74,634
Property, plant and equipment, net	290,103	291,077
Other assets, including investments in subs	6,128	6,137
Total assets	379,622	371,848
Accounts payable	66,679	68,948
Accrued expenses	4,590	4,779
Current maturities of long-term debt	34,034	24,975
Total current liabilities	105,303	98,702
Long-term debt	171,390	177,897
Other liabilities	70,280	63,020
Redeemable noncontrolling interests	126,340	126,340
Common stock	18,120	18,120
Additional paid-in capital	653,787	646,787
Retained earnings (deficit)	(629,555)	(624,402)
Total Steel Dynamics, Inc. equity	42,352	40,505
Noncontrolling interests	(136,043)	(134,616)
Total equity	(93,691)	(94,111)
Total liabilities and equity	379,622	371,848
Consolidating Adjustments
Condensed Consolidating Balance Sheets
Accounts receivable, net	(691,681)	(672,549)
Inventories	(2,406)	499
Other current assets	(1,374)	(831)
Total current assets	(695,461)	(672,881)
Property, plant and equipment, net	(1,959)	(2,011)
Other assets, including investments in subs	(2,759,450)	(2,921,386)
Total assets	(3,456,870)	(3,596,278)
Accounts payable	(73,453)	(69,688)
Accrued expenses	(99,209)	(96,949)
Current maturities of long-term debt	(25,098)	(22,117)
Total current liabilities	(197,760)	(188,754)
Long-term debt	(140,651)	(146,888)
Other liabilities	(618,687)	(804,948)
Common stock	(1,745,979)	(1,745,979)
Additional paid-in capital	(771,524)	(764,524)
Retained earnings (deficit)	17,731	54,815
Total Steel Dynamics, Inc. equity	(2,499,772)	(2,455,688)
Total equity	(2,499,772)	(2,455,688)
Total liabilities and equity	$ (3,456,870)	$ (3,596,278)

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Condensed Consolidating Information - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Consolidating Statements of Operations
Net sales	$ 1,741,301	$ 2,047,435
Costs of goods sold	1,505,265	1,860,393
Gross profit	236,036	187,042
Selling, general and administrative	104,071	87,271
Operating income	131,965	99,771
Interest expense, net of capitalized interest	37,043	43,087
Other (income) expense, net	(1,792)	16,192
Income before income taxes	96,714	40,492
Income taxes (benefit)	35,396	13,538
Net income	61,318	26,954
Net loss attributable to noncontrolling interests	1,419	3,807
Net income attributable to Steel Dynamics, Inc.	62,737	30,761
Reportable legal entity | Parent
Condensed Consolidating Statements of Operations
Net sales	657,814	798,718
Costs of goods sold	548,179	693,575
Gross profit	109,635	105,143
Selling, general and administrative	38,602	30,743
Operating income	71,033	74,400
Interest expense, net of capitalized interest	18,187	20,537
Other (income) expense, net	(2,208)	15,652
Income before income taxes	55,054	38,211
Income taxes (benefit)	17,268	6,941
Net income	37,786	31,270
Equity in net loss of subsidiaries	24,951	(509)
Net income attributable to Steel Dynamics, Inc.	62,737	30,761
Reportable legal entity | Guarantors
Condensed Consolidating Statements of Operations
Net sales	1,857,344	2,191,009
Costs of goods sold	1,701,821	2,072,125
Gross profit	155,523	118,884
Selling, general and administrative	67,200	58,033
Operating income	88,323	60,851
Interest expense, net of capitalized interest	18,400	21,840
Other (income) expense, net	2,190	688
Income before income taxes	67,733	38,323
Income taxes (benefit)	25,495	13,034
Net income	42,238	25,289
Net income attributable to Steel Dynamics, Inc.	42,238	25,289
Reportable legal entity | Combined Non-Guarantors
Condensed Consolidating Statements of Operations
Net sales	85,740	104,573
Costs of goods sold	91,030	118,781
Gross profit	(5,290)	(14,208)
Selling, general and administrative	2,802	3,365
Operating income	(8,092)	(17,573)
Interest expense, net of capitalized interest	2,260	1,734
Other (income) expense, net	(3,578)	(1,172)
Income before income taxes	(6,774)	(18,135)
Income taxes (benefit)	(271)	(1,116)
Net income	(6,503)	(17,019)
Net loss attributable to noncontrolling interests	1,419	3,807
Net income attributable to Steel Dynamics, Inc.	(5,084)	(13,212)
Consolidating Adjustments
Condensed Consolidating Statements of Operations
Net sales	(859,597)	(1,046,865)
Costs of goods sold	(835,765)	(1,024,088)
Gross profit	(23,832)	(22,777)
Selling, general and administrative	(4,533)	(4,870)
Operating income	(19,299)	(17,907)
Interest expense, net of capitalized interest	(1,804)	(1,024)
Other (income) expense, net	1,804	1,024
Income before income taxes	(19,299)	(17,907)
Income taxes (benefit)	(7,096)	(5,321)
Net income	(12,203)	(12,586)
Equity in net loss of subsidiaries	(24,951)	509
Net income attributable to Steel Dynamics, Inc.	$ (37,154)	$ (12,077)

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Condensed Consolidating Information - Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Consolidating Statements of Cash Flows
Net cash provided by operating activities	$ 288,899	$ 234,707
Net cash used in investing activities	(24,654)	(31,688)
Net cash provided by (used in) financing activities	(14,326)	(403,400)
Increase (decrease) in cash and equivalents	249,919	(200,381)
Cash and equivalents at beginning of period	727,032	361,363
Cash and equivalents at end of period	976,951	160,982
Reportable legal entity | Parent
Condensed Consolidating Statements of Cash Flows
Net cash provided by operating activities	119,354	102,678
Net cash used in investing activities	(7,318)	(18,547)
Net cash provided by (used in) financing activities	138,777	(218,903)
Increase (decrease) in cash and equivalents	250,813	(134,772)
Cash and equivalents at beginning of period	636,877	265,313
Cash and equivalents at end of period	887,690	130,541
Reportable legal entity | Guarantors
Condensed Consolidating Statements of Cash Flows
Net cash provided by operating activities	179,289	114,451
Net cash used in investing activities	(9,974)	(12,949)
Net cash provided by (used in) financing activities	(176,209)	(166,134)
Increase (decrease) in cash and equivalents	(6,894)	(64,632)
Cash and equivalents at beginning of period	81,976	81,690
Cash and equivalents at end of period	75,082	17,058
Reportable legal entity | Combined Non-Guarantors
Condensed Consolidating Statements of Cash Flows
Net cash provided by operating activities	(6,917)	9,456
Net cash used in investing activities	(4,108)	(9,727)
Net cash provided by (used in) financing activities	17,025	(706)
Increase (decrease) in cash and equivalents	6,000	(977)
Cash and equivalents at beginning of period	8,179	14,360
Cash and equivalents at end of period	14,179	13,383
Consolidating Adjustments
Condensed Consolidating Statements of Cash Flows
Net cash provided by operating activities	(2,827)	8,122
Net cash used in investing activities	(3,254)	9,535
Net cash provided by (used in) financing activities	$ 6,081	$ (17,657)