UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended June 30, 2021

OR

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

For the transition period from              to             

Commission file number 1-1070

Olin Corporation

(Exact name of registrant as specified in its charter)

Virginia	13-1872319
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

190 Carondelet Plaza,	Suite 1530,	Clayton,	MO	63105
(Address of principal executive offices)				(Zip Code)

(314) 480-1400

(Registrant’s telephone number, including area code)

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

Title of each class:	Trading symbol:	Name of each exchange on which registered:
Common Stock, $1.00 par value per share	OLN	New York Stock Exchange

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 ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).    Yes ☒ No ☐

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

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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

As of June 30, 2021, 160,462,045 shares of the registrant’s common stock were outstanding.

1

TABLE OF CONTENTS FOR FORM 10-Q		Page
Part I — Financial Information		3
Item 1.	Financial Statements	3
	Condensed Balance Sheets	3
	Condensed Statements of Operations	4
	Condensed Statements of Comprehensive Income (Loss)	5
	Condensed Statements of Shareholders’ Equity	6
	Condensed Statements of Cash Flows	7
	Notes to Condensed Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	29
	Business Background	29
	Executive Summary	30
	Consolidated Results of Operations	31
	Segment Results	33
	Outlook	36
	Environmental Matters	37
	Legal Matters and Contingencies	38
	Liquidity, Investment Activity and Other Financial Data	38
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	42
Item 4.	Controls and Procedures	43
	Cautionary Statement Regarding Forward-Looking Statements	44
Part II — Other Information		46
Item 1.	Legal Proceedings	46
Item 1A.	Risk Factors	46
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	46
Item 3.	Defaults Upon Senior Securities	46
Item 4.	Mine Safety Disclosures	46
Item 5.	Other Information	46
Item 6.	Exhibits	47
SIGNATURES		48

2

Part I — Financial Information

Item 1.  Financial Statements.

OLIN CORPORATION AND CONSOLIDATED SUBSIDIARIES

Condensed Balance Sheets

(In millions, except per share data)

(Unaudited)

	June 30, 2021		December 31, 2020		June 30, 2020
Assets
Current assets:
Cash and cash equivalents	$	272.8	$	189.7	$	237.9
Receivables, net	1,033.7		770.9		700.2
Income taxes receivable	62.4		15.1		17.6
Inventories, net	736.5		674.7		619.1
Other current assets	112.7		66.7		42.0
Total current assets	2,218.1		1,717.1		1,616.8
Property, plant and equipment (less accumulated depreciation of $3,893.8, $3,719.8 and $3,484.9)	3,005.6		3,171.0		3,234.9
Operating lease assets, net	370.7		360.7		371.8
Deferred income taxes	111.0		11.2		38.3
Other assets	1,165.9		1,191.3		1,179.7
Intangible assets, net	365.7		399.4		416.9
Goodwill	1,420.2		1,420.2		2,119.7
Total assets	$	8,657.2	$	8,270.9	$	8,978.1
Liabilities and Shareholders’ Equity
Current liabilities:
Current installments of long-term debt	$	1.1	$	26.3	$	1.8
Accounts payable	806.3		729.2		520.8
Income taxes payable	35.1		10.7		7.7
Current operating lease liabilities	76.9		74.7		77.3
Accrued liabilities	426.3		358.0		318.7
Total current liabilities	1,345.7		1,198.9		926.3
Long-term debt	3,381.8		3,837.5		4,073.9
Operating lease liabilities	299.8		291.6		299.2
Accrued pension liability	683.2		733.3		768.0
Deferred income taxes	521.9		443.2		414.5
Other liabilities	350.1		315.6		307.3
Total liabilities	6,582.5		6,820.1		6,789.2
Commitments and contingencies
Shareholders’ equity:
Common stock, $1.00 par value per share:  authorized, 240.0 shares; issued and outstanding, 160.5, 158.0 and 157.9 shares	160.5		158.0		157.9
Additional paid-in capital	2,187.9		2,137.8		2,127.0
Accumulated other comprehensive loss	(654.3)		(689.9)		(773.9)
Retained earnings (accumulated deficit)	380.6		(155.1)		677.9
Total shareholders’ equity	2,074.7		1,450.8		2,188.9
Total liabilities and shareholders’ equity	$	8,657.2	$	8,270.9	$	8,978.1

The accompanying notes to condensed financial statements are an integral part of the condensed financial statements.

3

OLIN CORPORATION AND CONSOLIDATED SUBSIDIARIES

Condensed Statements of Operations

(In millions, except per share data)

(Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Sales	$	2,221.3	$	1,241.2	$	4,140.1	$	2,666.3
Operating expenses:
Cost of goods sold	1,712.2		1,235.7		3,136.0		2,609.9
Selling and administration	100.6		99.7		207.5		196.4
Restructuring charges	14.0		1.7		20.9		3.4
Other operating income	0.5		0.1		0.5		0.1
Operating income (loss)	395.0		(95.8)		776.2		(143.3)
Interest expense	65.9		69.4		150.4		132.5
Interest income	—		0.2		0.1		0.3
Non-operating pension income	8.2		4.9		17.5		9.5
Income (loss) before taxes	337.3		(160.1)		643.4		(266.0)
Income tax (benefit) provision	(18.5)		(40.0)		44.0		(65.9)
Net income (loss)	$	355.8	$	(120.1)	$	599.4	$	(200.1)
Net income (loss) per common share:
Basic	$	2.23	$	(0.76)	$	3.77	$	(1.27)
Diluted	$	2.17	$	(0.76)	$	3.69	$	(1.27)
Average common shares outstanding:
Basic	159.9		157.9		159.2		157.8
Diluted	163.8		157.9		162.3		157.8

The accompanying notes to condensed financial statements are an integral part of the condensed financial statements.

4

OLIN CORPORATION AND CONSOLIDATED SUBSIDIARIES

Condensed Statements of Comprehensive Income (Loss)

(In millions)

(Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net income (loss)	$	355.8	$	(120.1)	$	599.4	$	(200.1)
Other comprehensive income, net of tax:
Foreign currency translation adjustments, net	2.4		8.2		(9.0)		(0.8)
Unrealized gains on derivative contracts, net	16.3		30.0		23.3		12.1
Amortization of prior service costs and actuarial losses, net	10.7		9.0		21.3		18.2
Total other comprehensive income, net of tax	29.4		47.2		35.6		29.5
Comprehensive income (loss)	$	385.2	$	(72.9)	$	635.0	$	(170.6)

The accompanying notes to condensed financial statements are an integral part of the condensed financial statements.

5

OLIN CORPORATION AND CONSOLIDATED SUBSIDIARIES

Condensed Statements of Shareholders’ Equity

(In millions, except per share data)

(Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Common Stock
Balance at beginning of period	$	159.2	$	157.8	$	158.0	$	157.7
Common stock issued for:
Stock options exercised	1.2		—		2.4		—
Other transactions	0.1		0.1		0.1		0.2
Balance at end of period	$	160.5	$	157.9	$	160.5	$	157.9
Additional Paid-In Capital
Balance at beginning of period	$	2,164.3	$	2,122.8	$	2,137.8	$	2,122.1
Common stock issued for:
Stock options exercised	23.3		—		47.8		0.5
Other transactions	1.2		0.3		2.6		3.1
Stock-based compensation	(0.9)		3.9		(0.3)		1.3
Balance at end of period	$	2,187.9	$	2,127.0	$	2,187.9	$	2,127.0
Accumulated Other Comprehensive Loss
Balance at beginning of period	$	(683.7)	$	(821.1)	$	(689.9)	$	(803.4)
Other comprehensive income	29.4		47.2		35.6		29.5
Balance at end of period	$	(654.3)	$	(773.9)	$	(654.3)	$	(773.9)
Retained Earnings (Accumulated Deficit)
Balance at beginning of period	$	56.8	$	829.6	$	(155.1)	$	941.1
Net income (loss)	355.8		(120.1)		599.4		(200.1)
Common stock dividends paid	(32.0)		(31.6)		(63.7)		(63.1)
Balance at end of period	$	380.6	$	677.9	$	380.6	$	677.9
Total Shareholders’ Equity	$	2,074.7	$	2,188.9	$	2,074.7	$	2,188.9
Dividends declared per share of common stock	$	0.20	$	0.20	$	0.40	$	0.40

The accompanying notes to condensed financial statements are an integral part of the condensed financial statements.

6

OLIN CORPORATION AND CONSOLIDATED SUBSIDIARIES

Condensed Statements of Cash Flows

(In millions)

(Unaudited)

	Six Months Ended June 30,
	2021		2020
Operating Activities
Net income (loss)	$	599.4	$	(200.1)
Adjustments to reconcile net income (loss) to net cash and cash equivalents provided by (used for) operating activities:
Stock-based compensation	1.3		4.1
Loss on debt extinguishment	38.9		—
Depreciation and amortization	287.2		283.0
Deferred income taxes	(26.8)		(52.1)
Qualified pension plan contributions	(0.6)		(1.2)
Qualified pension plan income	(13.7)		(5.9)
Change in:
Receivables	(274.5)		64.1
Income taxes receivable/payable	(22.6)		(15.8)
Inventories	(67.6)		75.7
Other current assets	12.0		(18.3)
Accounts payable and accrued liabilities	143.6		(74.9)
Other assets	(2.5)		0.6
Other noncurrent liabilities	32.2		(5.6)
Other operating activities	1.3		1.8
Net operating activities	707.6		55.4
Investing Activities
Capital expenditures	(86.4)		(166.5)
Payments under ethylene long-term supply contracts	—		(461.0)
Payments under other long-term supply contracts	—		(75.8)
Net investing activities	(86.4)		(703.3)
Financing Activities
Long-term debt:
Borrowings	365.0		1,163.2
Repayments	(855.2)		(425.8)
Debt early redemption premiums	(31.0)		—
Stock options exercised	50.2		0.5
Dividends paid	(63.7)		(63.1)
Debt issuance costs	(3.1)		(9.6)
Net financing activities	(537.8)		665.2
Effect of exchange rate changes on cash and cash equivalents	(0.3)		(0.3)
Net increase in cash and cash equivalents	83.1		17.0
Cash and cash equivalents, beginning of year	189.7		220.9
Cash and cash equivalents, end of period	$	272.8	$	237.9
Cash paid for interest and income taxes:
Interest, net	$	153.5	$	122.3
Income taxes, net of refunds	$	82.6	$	3.1
Non-cash investing activities:
Decrease in capital expenditures included in accounts payable and accrued liabilities	$	26.1	$	38.6

The accompanying notes to condensed financial statements are an integral part of the condensed financial statements.

7

OLIN CORPORATION AND CONSOLIDATED SUBSIDIARIES

Notes to Condensed Financial Statements

(Unaudited)

NOTE 1. DESCRIPTION OF BUSINESS

Olin Corporation (Olin) is a Virginia corporation, incorporated in 1892, having its principal executive offices in Clayton, MO.  We are a manufacturer concentrated in three business segments:  Chlor Alkali Products and Vinyls, Epoxy and Winchester.  The Chlor Alkali Products and Vinyls segment manufactures and sells chlorine and caustic soda, ethylene dichloride (EDC) and vinyl chloride monomer, methyl chloride, methylene chloride, chloroform, carbon tetrachloride, perchloroethylene, trichloroethylene, hydrochloric acid, hydrogen, bleach products and potassium hydroxide.  The Epoxy segment produces and sells a full range of epoxy materials and precursors, including aromatics (acetone, bisphenol, cumene and phenol), allyl chloride, epichlorohydrin, liquid epoxy resins, solid epoxy resins and downstream products such as converted epoxy resins and additives. The Winchester segment produces and sells sporting ammunition, reloading components, small caliber military ammunition and components, and industrial cartridges.

We have prepared the condensed financial statements included herein, without audit, pursuant to the rules and regulations of the United States (U.S.) Securities and Exchange Commission (SEC). The preparation of the financial statements requires estimates and assumptions that affect amounts reported and disclosed in the financial statements and related notes. In our opinion, these financial statements reflect all adjustments (consisting only of normal accruals), which are necessary to present fairly the results for interim periods. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations; however, we believe that the disclosures are appropriate. We recommend that you read these condensed financial statements in conjunction with the financial statements, accounting policies and the notes thereto and Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2020. Certain reclassifications were made to prior year amounts to conform to the 2021 presentation.

NOTE 2. RECENT ACCOUNTING PRONOUNCEMENTS

In March 2020, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) 2020-04, “Facilitation of the Effects of Reference Rate Reform on Financial Reporting” (ASU 2020-04) which creates a new topic, Accounting Standards Codification (ASC) 848 “Reference Rate Reform.”  Subsequent to the issuance of ASU 2020-04, ASC 848 was amended by ASU 2021-01, “Scope” which amended and clarified the application and scope of the aforementioned update. This update provides optional guidance to ease the potential accounting burden associated with transition away from reference rates that are expected to be discontinued at the end of 2021, at which time financial institutions will no longer be required to report information that is currently used to determine the London Interbank Offered Rate (LIBOR) and other reference rates.  This update allows companies to treat contract amendments to existing contracts for the purpose of establishing a new reference rate as continuations of those contracts without additional analysis, as long as the modification was made to establish a new reference rate.  This update applies prospectively to contract modifications.  The optional guidance was effective on March 12, 2020 and can be adopted beginning January 1, 2020 or any date thereafter until December 31, 2022, at which time the optional guidance can no longer be applied to contract amendments to existing contracts. We adopted the provisions of this update on January 1, 2020 and will apply this guidance prospectively to contract modifications that are entered into for the purpose of establishing a new reference rate.  The adoption of this update did not have a material impact on our consolidated financial statements.

NOTE 3. RESTRUCTURING CHARGES

Olin committed to a productivity initiative to align the organization with our new operating model and improve efficiencies (collectively, Productivity Plan). These actions and related activities were completed during the second quarter of 2021. For both the three and six months ended June 30, 2021, we recorded pretax restructuring charges of $10.1 million for employee severance and related benefit costs related to these actions. We do not expect to incur additional restructuring charges related to these actions.

On May 18, 2021, we announced that we had made the decision to permanently close approximately 20% of our diaphragm-grade chlor alkali capacity, representing 225,000 tons, at our Plaquemine, LA facility (Plaquemine Plan). The closure was completed in the second quarter of 2021. We expect to incur restructuring charges through 2022 of approximately $2 million related to this action.

8

On March 15, 2021, we announced that we had made the decision to permanently close approximately 50% of our diaphragm-grade chlor alkali capacity, representing 200,000 tons, at our McIntosh, AL facility (McIntosh Plan). The closure was completed in the first quarter of 2021. For the three and six months ended June 30, 2021, we recorded pretax restructuring charges of $0.4 million and $4.8 million, respectively, for lease and other contract termination costs related to this action. We expect to incur additional restructuring charges through 2022 of approximately $2 million related to this action.

On January 18, 2021, we announced that we had made the decision to permanently close our trichloroethylene and anhydrous hydrogen chloride liquefaction facilities in Freeport, TX (collectively, Freeport 2021 Plan), before the end of 2021. For the three and six months ended June 30, 2021, we recorded pretax restructuring charges of $2.8 million and $4.1 million, respectively, for facility exit costs related to these actions. We expect to incur additional restructuring charges through 2023 of approximately $25 million related to these actions.

On December 11, 2019, we announced that we had made the decision to permanently close a chlor alkali plant with a capacity of 230,000 tons and our vinylidene chloride (VDC) production facility, both in Freeport, TX (collectively, Freeport 2019 Plan).  The VDC facility and related chlor alkali plant were closed during fourth quarter of 2020 and second quarter of 2021, respectively.  For the three months ended June 30, 2021 and 2020, we recorded pretax restructuring charges of $0.4 million and $0.5 million, respectively, for facility exit costs related to these actions. For the six months ended June 30, 2021 and 2020, we recorded pretax restructuring charges of $1.2 million and $0.5 million, respectively, for facility exit costs related to these actions. We expect to incur additional restructuring charges through 2025 of approximately $45 million related to these actions.

On March 21, 2016, we announced that we had made the decision to close a combined total of 433,000 tons of chlor alkali capacity across three separate locations (collectively, Chlor Alkali 2016 Plan). Associated with this action, we have permanently closed our Henderson, NV chlor alkali plant with 153,000 tons of capacity and have reconfigured the site to manufacture bleach and distribute caustic soda and hydrochloric acid. Also, the capacity of our Niagara Falls, NY chlor alkali plant has been reduced from 300,000 tons to 240,000 tons and the chlor alkali capacity at our Freeport, TX facility was reduced by 220,000 tons. This 220,000 ton reduction was entirely from diaphragm cell capacity. For the three months ended June 30, 2021 and 2020, we recorded pretax restructuring charges of $0.3 million and $1.2 million, respectively, for facility exit costs and lease and other contract termination costs related to these actions. For the six months ended June 30, 2021 and 2020, we recorded pretax restructuring charges of $0.7 million and $2.9 million, respectively, for facility exit costs, employee severance and related benefit costs and lease and other contract termination costs related to these actions. We expect to incur additional restructuring charges through 2021 of approximately $2 million related to these capacity reductions.

The following table summarizes the 2021 and 2020 activities by major component of these restructuring actions and the remaining balances of accrued restructuring costs as of June 30, 2021 and 2020:

	Employee severance and related benefit costs		Lease and other contract termination costs		Facility exit costs		Total
	($ in millions)
Balance at January 1, 2020	$	—	$	3.1	$	—	$	3.1
Restructuring charges:
First quarter	0.1		0.1		1.5		1.7
Second quarter	—		—		1.7		1.7
Amounts utilized	(0.1)		(0.6)		(3.2)		(3.9)
Balance at June 30, 2020	$	—	$	2.6	$	—	$	2.6
Balance at January 1, 2021	$	1.8	$	1.7	$	—	$	3.5
Restructuring charges:
First quarter	—		4.6		2.3		6.9
Second quarter	10.1		0.5		3.4		14.0
Amounts utilized	(1.3)		(0.7)		(5.7)		(7.7)
Balance at June 30, 2021	$	10.6	$	6.1	$	—	$	16.7

9

The following table summarizes the cumulative restructuring charges of these restructuring actions by major component through June 30, 2021:

	Chlor Alkali Products and Vinyls										Corporate/other		Total
	Plaquemine Plan		McIntosh Plan		Freeport 2021 Plan		Freeport 2019 Plan		Chlor Alkali 2016 Plan		Productivity Plan
			($ in millions)
Write-off of equipment and facility	$	—	$	—	$	—	$	58.9	$	78.1	$	—	$	137.0
Employee severance and related benefit costs	—		—		—		2.1		6.7		10.1		18.9
Facility exit costs	—		—		4.1		2.9		52.4		—		59.4
Employee relocation costs	—		—		—		—		1.7		—		1.7
Lease and other contract termination costs	—		4.8		—		—		42.5		—		47.3
Total cumulative restructuring charges	$	—	$	4.8	$	4.1	$	63.9	$	181.4	$	10.1	$	264.3

As of June 30, 2021, we have incurred cash expenditures of $110.2 million and non-cash charges of $137.4 million related to these restructuring actions. The remaining balance of $16.7 million is expected to be paid out through 2031.

NOTE 4. ACCOUNTS RECEIVABLES

We maintain a $250.0 million Receivables Financing Agreement (Receivables Financing Agreement) that is scheduled to mature on July 15, 2022. The Receivables Financing Agreement includes a minimum borrowing requirement of 50% of the facility limit or available borrowing capacity, whichever is less. The administrative agent for our Receivables Financing Agreement is PNC Bank, National Association.  Under the Receivables Financing Agreement, our eligible trade receivables are used for collateralized borrowings and continue to be serviced by us. In addition, the Receivables Financing Agreement incorporates the secured leverage covenant that is contained in the $1,615.0 million senior secured credit facility. As of June 30, 2021, $457.9 million of our trade receivables were pledged as collateral. As of June 30, 2021, we had $125.0 million drawn with $125.0 million of additional borrowing capacity available under the Receivables Financing Agreement. As of December 31, 2020 and June 30, 2020, we had $125.0 million and $240.7 million, respectively, drawn under the Receivables Financing Agreement.

Olin also has trade accounts receivable factoring arrangements (AR Facilities) and pursuant to the terms of the AR Facilities, certain of our domestic subsidiaries may sell their accounts receivable up to a maximum of $228.0 million and certain of our foreign subsidiaries may sell their accounts receivable up to a maximum of €35.3 million. We will continue to service the outstanding accounts sold.  These receivables qualify for sales treatment under ASC 860 “Transfers and Servicing” and, accordingly, the proceeds are included in net cash provided by operating activities in the condensed statements of cash flows.  The following table summarizes the AR Facilities activity:

	June 30,
	2021		2020
	($ in millions)
Balance at beginning of year	$	48.8	$	63.1
Gross receivables sold	487.3		457.5
Payments received from customers on sold accounts	(450.4)		(458.9)
Balance at end of period	$	85.7	$	61.7

The factoring discount paid under the AR Facilities is recorded as interest expense on the condensed statements of operations. The factoring discount was $0.3 million and $0.4 million for the three months ended June 30, 2021 and 2020, respectively, and $0.7 million and $1.0 million for the six months ended June 30, 2021 and 2020, respectively. The agreements are without recourse and therefore no recourse liability had been recorded as of June 30, 2021, December 31, 2020 or June 30, 2020.

10

Our condensed balance sheets included an allowance for doubtful accounts receivables of $12.4 million, $12.3 million and $12.5 million and other receivables of $72.8 million, $62.4 million and $87.7 million at June 30, 2021, December 31, 2020 and June 30, 2020, respectively, which were included in receivables, net.

NOTE 5. INVENTORIES

Inventories consisted of the following:

	June 30, 2021		December 31, 2020		June 30, 2020
	($ in millions)
Supplies	$	115.0	$	113.8	$	111.6
Raw materials	145.1		116.3		64.6
Work in process	145.1		133.2		94.0
Finished goods	420.9		359.6		392.7
Inventories excluding LIFO reserve	826.1		722.9		662.9
LIFO reserve	(89.6)		(48.2)		(43.8)
Inventories, net	$	736.5	$	674.7	$	619.1

Inventories are valued at the lower of cost and net realizable value. For U.S. inventories, inventory costs are determined principally by the last-in, first-out (LIFO) method of inventory accounting while for international inventories, inventory costs are determined principally by the first-in, first-out (FIFO) method of inventory accounting. Cost for other inventories has been determined principally by the average-cost method (primarily operating supplies, spare parts and maintenance parts). Elements of costs in inventories included raw materials, direct labor and manufacturing overhead. Inventories under the LIFO method are based on annual estimates of quantities and costs as of year-end; therefore, the condensed financial statements at June 30, 2021 reflect certain estimates relating to inventory quantities and costs at December 31, 2021. The replacement cost of our inventories would have been approximately $89.6 million, $48.2 million and $43.8 million higher than reported at June 30, 2021, December 31, 2020 and June 30, 2020, respectively.

NOTE 6. OTHER ASSETS

Included in other assets were the following:

	June 30, 2021		December 31, 2020		June 30, 2020
	($ in millions)
Supply contracts	$	1,091.0	$	1,122.9	$	1,137.9
Other	74.9		68.4		41.8
Other assets	$	1,165.9	$	1,191.3	$	1,179.7

We have entered into various arrangements for the long-term supply of ethylene and electricity. A payment of $461.0 million was made during the second quarter of 2020 associated with a previously executed option to reserve additional ethylene at producer economics from The Dow Chemical Company (Dow). The original liability was discounted and recorded at present value as of March 31, 2017. For the six months ended June 30, 2020, $4.0 million of interest expense was recorded for accretion on the 2020 payment liability discount.

During the six months ended June 30, 2020, a payment of $75.8 million was made associated with the resolution of a dispute over the allocation to Olin of certain capital costs incurred at our Plaquemine, LA site after the October 5, 2015 closing date of the acquisition from Dow.

Amortization expense of $17.3 million and $11.0 million for the three months ended June 30, 2021 and 2020, respectively, and amortization expense of $34.8 million and $33.3 million for the six months ended June 30, 2021 and 2020, respectively, was recognized within cost of goods sold related to our long-term supply contracts and is reflected in depreciation and amortization on the condensed statements of cash flows. The long-term supply contracts are monitored for impairment each reporting period.

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NOTE 7. GOODWILL AND INTANGIBLE ASSETS

Changes in the carrying value of goodwill were as follows:

	Chlor Alkali Products and Vinyls		Epoxy		Total
	($ in millions)
Balance at January 1, 2020	$	1,832.7	$	287.0	$	2,119.7
Foreign currency translation adjustment	—		—		—
Balance at June 30, 2020	$	1,832.7	$	287.0	$	2,119.7
Balance at January 1, 2021(1)	$	1,275.3	$	144.9	$	1,420.2
Foreign currency translation adjustment	—		—		—
Balance at June 30, 2021(1)	$	1,275.3	$	144.9	$	1,420.2

(1)     The Chlor Alkali Products and Vinyls, Epoxy and total goodwill balances are net of $557.6 million, $142.2 million and $699.8 million of accumulated impairment losses recorded during the third quarter of 2020.

Intangible assets consisted of the following:

	June 30, 2021						December 31, 2020						June 30, 2020
	Gross Amount		Accumulated Amortization		Net		Gross Amount		Accumulated Amortization		Net		Gross Amount		Accumulated Amortization		Net
	($ in millions)
Customers, customer contracts and relationships	$	678.2	$	(336.3)	$	341.9	$	681.0	$	(312.5)	$	368.5	$	673.3	$	(285.3)	$	388.0
Trade name	—		—		—		—		—		—		7.0		(6.7)		0.3
Acquired technology	94.5		(71.9)		22.6		95.0		(65.3)		29.7		85.1		(57.7)		27.4
Other	1.8		(0.6)		1.2		1.8		(0.6)		1.2		1.8		(0.6)		1.2
Total intangible assets	$	774.5	$	(408.8)	$	365.7	$	777.8	$	(378.4)	$	399.4	$	767.2	$	(350.3)	$	416.9

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NOTE 8. EARNINGS PER SHARE

Basic and diluted net income (loss) per share are computed by dividing net income (loss) by the weighted-average number of common shares outstanding. Diluted net income (loss) per share reflects the dilutive effect of stock-based compensation.

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Computation of Net Income (Loss) per Share	(In millions, except per share data)
Net income (loss)	$	355.8	$	(120.1)	$	599.4	$	(200.1)
Basic shares	159.9		157.9		159.2		157.8
Basic net income (loss) per share	$	2.23	$	(0.76)	$	3.77	$	(1.27)
Diluted shares:
Basic shares	159.9		157.9		159.2		157.8
Stock-based compensation	3.9		—		3.1		—
Diluted shares	163.8		157.9