oc-20230930

Table of Contents

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 September 30, 2023

☐ 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: 1-33100

Owens Corning

(Exact name of registrant as specified in its charter)

Delaware

43-2109021

(State or other jurisdiction of incorporation or organization)

(I.R.S. Employer Identification No.)

One Owens Corning Parkway,

Toledo,

43659

(Address of principal executive offices)

(Zip Code)

(419) 248-8000

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

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


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	OC	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 þ 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 þ 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	þ	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. ¨

Table of Contents

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

As of October 20, 2023, 88,874,956 shares of the registrant’s common stock, par value $0.01 per share, were outstanding.

Table of Contents


			Contents

Cover Page			1

PART I – FINANCIAL INFORMATION (unaudited)

	Item 1.	Financial Statements
		Consolidated Statements of Earnings	4
		Consolidated Statements of Comprehensive Earnings	5
		Consolidated Balance Sheets	6
		Consolidated Statements of Stockholders’ Equity	7
		Consolidated Statements of Cash Flows	9
		Notes to Consolidated Financial Statements
		1. General	10
		2. Segment Information	12

		3. Inventories	14
		4. Derivative Financial Instruments	15
		5. Goodwill and Other Intangible Assets	17
		6. Property, Plant and Equipment	19

		7. Acquisitions	20

		8. Divestitures	21
		9. Warranties	21
		10. Restructuring, Acquisition and Divestiture-Related Costs	22
		11. Debt	24
		12. Pension Plans and Other Postretirement Benefits	27
		13. Contingent Liabilities and Other Matters	29
		14. Stock Compensation	31
		15. Earnings per Share	34
		16. Income Taxes	35
		17. Changes in Accumulated Other Comprehensive Deficit	36


	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	37

	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	50

	Item 4.	Controls and Procedures	50

PART II – OTHER INFORMATION

	Item 1.	Legal Proceedings	51

	Item 1A.	Risk Factors	51

	Item 2.	Unregistered Sales of Equity Securities, Use of Proceeds, and Issuer Purchases of Equity Securities	51

	Item 3.	Defaults Upon Senior Securities	51

	Item 4.	Mine Safety Disclosures	51

	Item 5.	Other Information	51

	Item 6.	Exhibits	52

		Signatures	53

Table of Contents

- 4 -

PART I

ITEM 1. FINANCIAL STATEMENTS

OWENS CORNING AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EARNINGS

(unaudited)

(in millions, except per share amounts)


	Three Months Ended September 30,				Nine Months Ended September 30,

	2023		2022		2023		2022
NET SALES	$	2,479	$	2,529	$	7,373	$	7,476
COST OF SALES	1,752		1,836		5,305		5,430
Gross margin	727		693		2,068		2,046
OPERATING EXPENSES
Marketing and administrative expenses	201		201		612		586
Science and technology expenses	29		26		85		73


Gain on equity method investment	—		(130)		—		(130)
Gain on sale of site	—		—		(189)		—
Other expense (income), net	35		(12)		77		(18)
Total operating expenses	265		85		585		511
OPERATING INCOME	462		608		1,483		1,535
Non-operating income	(1)		(2)		(1)		(6)
EARNINGS BEFORE INTEREST AND TAXES	463		610		1,484		1,541
Interest expense, net	17		28		62		82

EARNINGS BEFORE TAXES	446		582		1,422		1,459
Income tax expense	110		114		361		340
Equity in net earnings of affiliates	1		1		2		—
NET EARNINGS	337		469		1,063		1,119
Net (loss) earnings attributable to non-redeemable and redeemable noncontrolling interests	—		(1)		(2)		2

NET EARNINGS ATTRIBUTABLE TO OWENS CORNING	$	337	$	470	$	1,065	$	1,117
EARNINGS PER COMMON SHARE ATTRIBUTABLE TO OWENS CORNING COMMON STOCKHOLDERS
Basic	$	3.74	$	4.88	$	11.75	$	11.42
Diluted	$	3.71	$	4.84	$	11.64	$	11.32

WEIGHTED AVERAGE COMMON SHARES
Basic	90.0		96.3		90.6		97.8
Diluted	90.9		97.1		91.5		98.7

The accompanying Notes to the Consolidated Financial Statements are an integral part of these Statements.

Table of Contents

- 5 -

OWENS CORNING AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS

(unaudited)

(in millions)


		Three Months Ended September 30,				Nine Months Ended September 30,
		2023		2022		2023		2022
NET EARNINGS		$	337	$	469	$	1,063	$	1,119
Other comprehensive (loss) income, net of tax:
	Currency translation adjustment (net of tax of $(2) and $0 for the three months ended September 30, 2023 and 2022, respectively, and $(2) and $(1) for the nine months ended September 30, 2023 and 2022, respectively)	(73)		(161)		(33)		(243)
	Pension and other postretirement adjustment (net of tax of $0 and $0 for the three months ended September 30, 2023 and 2022, respectively, and $0 and $(1) for the nine months ended September 30, 2023 and 2022, respectively)	2		6		(1)		15
	Hedging adjustment (net of tax of $(2) and $(2) for the three months ended September 30, 2023 and 2022, respectively, and $(4) and $(9) for the nine months ended September 30, 2023 and 2022, respectively)	5		6		11		29
	Total other comprehensive loss, net of tax	(66)		(149)		(23)		(199)
COMPREHENSIVE EARNINGS		271		320		1,040		920
Comprehensive loss attributable to non-redeemable and redeemable noncontrolling interests		(1)		(2)		(4)		(2)

COMPREHENSIVE EARNINGS ATTRIBUTABLE TO OWENS CORNING		$	272	$	322	$	1,044	$	922

The accompanying Notes to the Consolidated Financial Statements are an integral part of these Statements.

Table of Contents

- 6 -

OWENS CORNING AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(unaudited)

(in millions, except per share amounts)


ASSETS	September 30, 2023		December 31, 2022
CURRENT ASSETS
Cash and cash equivalents	$	1,323	$	1,099
Receivables, less allowance of $12 at September 30, 2023 and $11 at December 31, 2022	1,300		961
Inventories	1,232		1,334
Assets held for sale	—		45
Other current assets	94		117
Total current assets	3,949		3,556
Property, plant and equipment, net	3,688		3,729
Operating lease right-of-use assets	216		204
Goodwill	1,378		1,383
Intangible assets	1,526		1,602
Deferred income taxes	19		16
Other non-current assets	293		262
TOTAL ASSETS	$	11,069	$	10,752
LIABILITIES AND EQUITY
CURRENT LIABILITIES
Accounts payable	$	1,161	$	1,345
Current operating lease liabilities	60		52
Other current liabilities	605		707
Total current liabilities	1,826		2,104
Long-term debt, net of current portion	3,002		2,992
Pension plan liability	73		78
Other employee benefits liability	116		118
Non-current operating lease liabilities	156		152
Deferred income taxes	430		388
Other liabilities	316		299
Total liabilities	5,919		6,131
Redeemable noncontrolling interest	25		25
OWENS CORNING STOCKHOLDERS’ EQUITY
Preferred stock, par value $0.01 per share (a)	—		—
Common stock, par value $0.01 per share (b)	1		1
Additional paid in capital	4,152		4,139
Accumulated earnings	4,718		3,794
Accumulated other comprehensive deficit	(703)		(681)
Cost of common stock in treasury (c)	(3,063)		(2,678)
Total Owens Corning stockholders’ equity	5,105		4,575
Noncontrolling interests	20		21
Total equity	5,125		4,596
TOTAL LIABILITIES AND EQUITY	$	11,069	$	10,752

(a)10 shares authorized; none issued or outstanding at September 30, 2023 and December 31, 2022

(b)400 shares authorized; 135.5 issued and 88.9 outstanding at September 30, 2023; 135.5 issued and 91.9 outstanding at December 31, 2022

The accompanying Notes to the Consolidated Financial Statements are an integral part of these Statements.

Table of Contents

- 7 -

OWENS CORNING AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(unaudited)

(in millions)


	Common Stock Outstanding			Treasury Stock			APIC (a)		Accumulated Earnings		AOCI (b)		NCI (c)		Total
	Shares	Par Value		Shares	Cost
Balance at December 31, 2022	91.9	$	1	43.6	$	(2,678)	$	4,139	$	3,794	$	(681)	$	21	$	4,596
Net earnings attributable to Owens Corning	—	—		—	—		—		383		—		—		383
Net earnings attributable to non-redeemable noncontrolling interests	—	—		—	—		—		—		—		—		—
Redeemable noncontrolling interest adjustment to redemption value	—	—		—	—		(1)		—		—		—		(1)
Currency translation adjustment	—	—		—	—		—		—		31		—		31
Pension and other postretirement adjustment (net of tax)	—	—		—	—		—		—		(1)		—		(1)
Deferred loss on hedging transactions (net of tax)	—	—		—	—		—		—		(1)		—		(1)

Issuance of common stock under share-based payment plans	0.7	—		(0.7)	23		(22)		—		—		—		1
Purchases of treasury stock	(1.8)	—		1.8	(161)		—		—		—		—		(161)
Stock-based compensation expense	—	—		—	—		13		—		—		—		13

Dividends declared (d)	—	—		—	—		—		(48)		—		—		(48)
Balance at March 31, 2023	90.8	$	1	44.7	$	(2,816)	$	4,129	$	4,129	$	(652)	$	21	$	4,812
Net earnings attributable to Owens Corning	—	—		—	—		—		345		—		—		345
Net earnings attributable to non-redeemable noncontrolling interests	—	—		—	—		—		—		—		—		—
Redeemable noncontrolling interest adjustment to redemption value	—	—		—	—		—		—		—		—		—
Currency translation adjustment	—	—		—	—		—		—		10		(1)		9
Pension and other postretirement adjustment (net of tax)	—	—		—	—		—		—		(2)		—		(2)
Deferred gain on hedging transactions (net of tax)	—	—		—	—		—		—		7		—		7

Issuance of common stock under share-based payment plans	0.1	—		(0.1)	12		—		—		—		—		12
Purchases of treasury stock	(1.1)	—		1.1	(116)		—		—		—		—		(116)
Stock-based compensation expense	—	—		—	—		14		—		—		—		14

Dividends declared (d)	—	—		—	—		—		(47)		—		—		(47)
Balance at June 30, 2023	89.8	$	1	45.7	$	(2,920)	$	4,143	$	4,427	$	(637)	$	20	$	5,034
Net earnings attributable to Owens Corning	—	—		—	—		—		337		—		—		337
Net earnings attributable to non-redeemable noncontrolling interests	—	—		—	—		—		—		—		—		—
Redeemable noncontrolling interest adjustment to redemption value	—	—		—	—		—		—		—		—		—
Currency translation adjustment	—	—		—	—		—		—		(73)		—		(73)
Pension and other postretirement adjustment (net of tax)	—	—		—	—		—		—		2		—		2
Deferred gain on hedging transactions (net of tax)	—	—		—	—		—		—		5		—		5

Issuance of common stock under share-based payment plans	0.1	—		(0.1)	2		(2)		—		—		—		—
Purchases of treasury stock	(1.0)	—		1.0	(145)		—		—		—		—		(145)
Stock-based compensation expense	—	—		—	—		11		—		—		—		11

Dividends declared (d)	—	—		—	—		—		(46)		—		—		(46)
Balance at September 30, 2023	88.9	$	1	46.6	$	(3,063)	$	4,152	$	4,718	$	(703)	$	20	$	5,125

(a)Additional Paid in Capital (“APIC”)

(b)Accumulated Other Comprehensive Earnings (Deficit) (“AOCI”)

(c)Noncontrolling Interests (“NCI”)

(d)Quarterly dividend declaration of $0.52 per share as of September 30, 2023, June 30, 2023 and March 31, 2023

The accompanying Notes to the Consolidated Financial Statements are an integral part of these Statements.

Table of Contents

- 8 -

OWENS CORNING AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(unaudited)

(in millions)


	Common Stock Outstanding			Treasury Stock			APIC (a)		Accumulated Earnings		AOCI (b)		NCI (c)		Total
	Shares	Par Value		Shares	Cost
Balance at December 31, 2021	100.4	$	1	35.1	$	(1,922)	$	4,092	$	2,706	$	(581)	$	39	$	4,335
Net earnings attributable to Owens Corning	—	—		—	—		—		304		—		—		304
Net earnings attributable to noncontrolling interests	—	—		—	—		—		—		—		3		3
Currency translation adjustment	—	—		—	—		—		—		(27)		(1)		(28)
Pension and other postretirement adjustment (net of tax)	—	—		—	—		—		—		3		—		3
Deferred gain on hedging transactions (net of tax)	—	—		—	—		—		—		24		—		24
Purchases of noncontrolling interest	—	—		—	—		8		—		—		(17)		(9)
Issuance of common stock under share-based payment plans	0.4	—		(0.4)	21		(21)		—		—		—		—
Purchases of treasury stock	(2.7)	—		2.7	(243)		—		—		—		—		(243)
Stock-based compensation expense	—	—		—	—		12		—		—		—		12

Dividends declared (d)	—	—		—	—		—		(36)		—		—		(36)
Balance at March 31, 2022	98.1	$	1	37.4	$	(2,144)	$	4,091	$	2,974	$	(581)	$	24	$	4,365
Net earnings attributable to Owens Corning	—	—		—	—		—		343		—		—		343
Net loss attributable to noncontrolling interests	—	—		—	—		—		—		—		—		—
Currency translation adjustment	—	—		—	—		—		—		(52)		(2)		(54)
Pension and other postretirement adjustment (net of tax)	—	—		—	—		—		—		6		—		6
Deferred loss on hedging transactions (net of tax)	—	—		—	—		—		—		(1)		—		(1)

Issuance of common stock under share-based payment plans	0.1	—		(0.1)	9		3		—		—		—		12
Purchases of treasury stock	(1.0)	—		1.0	(87)		—		—		—		—		(87)
Stock-based compensation expense	—	—		—	—		13		—		—		—		13

Dividends declared (d)	—	—		—	—		—		(35)		—		—		(35)
Balance at June 30, 2022	97.2	$	1	38.3	$	(2,222)	$	4,107	$	3,282	$	(628)	$	22	$	4,562
Net earnings attributable to Owens Corning	—	—		—	—		—		470		—		—		470
Net loss attributable to noncontrolling interests	—	—		—	—		—		—		—		—		—
Redeemable noncontrolling interest adjustment to redemption value	—	—		—	—		(1)		—		—		—		(1)
Currency translation adjustment	—	—		—	—		—		—		(160)		(1)		(161)
Pension and other postretirement adjustment (net of tax)	—	—		—	—		—		—		6		—		6
Deferred loss on hedging transactions (net of tax)	—	—		—	—		—		—		6		—		6

Issuance of common stock under share-based payment plans	—	—		—	—		5		—		—		—		5
Purchases of treasury stock	(2.5)	—		2.5	(206)		—		—		—		—		(206)
Stock-based compensation expense	—	—		—	—		13		—		—		—		13

Dividends declared (d)	—	—		—	—		—		(33)		—		—		(33)
Balance at September 30, 2022	94.7	1.0		40.8	(2,428)		4,124		3,719		(776)		21		4,661

(a)Additional Paid in Capital (“APIC”)

(b)Accumulated Other Comprehensive Earnings (Deficit) (“AOCI”)

(c)Noncontrolling Interests (“NCI”)

(d)Quarterly dividend declaration of $0.35 per share as September 30, 2022, June 30, 2022 and March 31, 2022

The accompanying Notes to the Consolidated Financial Statements are an integral part of these Statements.

Table of Contents

- 9 -

OWENS CORNING AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

(in millions)


	Nine Months Ended September 30,
	2023		2022
NET CASH FLOW PROVIDED BY OPERATING ACTIVITIES
Net earnings	$	1,063	$	1,119
Adjustments to reconcile net earnings to cash provided by operating activities:
Depreciation and amortization	446		400


Deferred income taxes	40		48
Provision for pension and other employee benefits liabilities	3		2
Stock-based compensation expense	38		38


Gains on sale of certain precious metals	(2)		(18)

Gain on equity method investment	—		(130)
Gain on sale of site	(189)		—
Other adjustments to reconcile net earnings to cash provided by operating activities	20		(1)
Changes in operating assets and liabilities	(384)		(333)
Pension fund contribution	(4)		(5)
Payments for other employee benefits liabilities	(8)		(5)
Other	(2)		(30)
Net cash flow provided by operating activities	1,021		1,085
NET CASH FLOW USED FOR INVESTING ACTIVITIES
Cash paid for property, plant, and equipment	(390)		(306)

Proceeds from the sale of assets or affiliates	189		103
Investment in subsidiaries and affiliates, net of cash acquired	(6)		(417)

Derivative settlements	—		52


Other	(12)		(5)
Net cash flow used for investing activities	(219)		(573)
NET CASH FLOW USED FOR FINANCING ACTIVITIES






Purchases of noncontrolling interest	—		(9)
Net decrease in short-term debt	(1)		(5)
Dividends paid	(142)		(103)
Purchases of treasury stock	(419)		(536)
Finance lease payments	(24)		(23)
Other	1		1
Net cash flow used for financing activities	(585)		(675)
Effect of exchange rate changes on cash	8		(45)
Net increase (decrease) in cash, cash equivalents and restricted cash	225		(208)
Cash, cash equivalents and restricted cash at beginning of period	1,107		966
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	$	1,332	$	758

The accompanying Notes to the Consolidated Financial Statements are an integral part of these Statements.

Table of Contents

- 10 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1. GENERAL

Unless the context requires otherwise, the terms “Owens Corning,” “Company,” “we” and “our” in this report refer to Owens Corning, a Delaware corporation, and its subsidiaries.

The Consolidated Financial Statements included in this report are unaudited, pursuant to certain rules and regulations of the Securities and Exchange Commission, and include, in the opinion of the Company, normal recurring adjustments necessary for a fair statement of the results for the periods indicated, which, however, are not necessarily indicative of results which may be expected for the full year. The December 31, 2022 balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States (“U.S.”). In connection with the Consolidated Financial Statements and Notes included in this report, reference is made to the Consolidated Financial Statements and Notes contained in the Company’s annual report on Form 10-K for the year ended December 31, 2022 (the “2022 Form 10-K”). Certain reclassifications have been made to the periods presented for 2022 to conform to the classifications used in the periods presented for 2023.

Revenue Recognition

As of December 31, 2022, our contract liability balances (for extended warranties, down payments and deposits, collectively) totaled $89 million, of which $17 million was recognized as revenue in the first nine months of 2023. As of September 30, 2023, our contract liability balances totaled $96 million.

As of December 31, 2021, our contract liability balances totaled $76 million, of which $16 million was recognized as revenue in the first nine months of 2022. As of September 30, 2022, our contract liability balances totaled $86 million.

Cash, Cash Equivalents and Restricted Cash

On the Consolidated Statements of Cash Flows, the total of Cash, cash equivalents and restricted cash includes restricted cash of $9 million as of September 30, 2023, $8 million as of December 31, 2022, and $7 million as of September 30, 2022 and December 31, 2021. Restricted cash primarily represents amounts received from a counterparty related to its performance assurance on an executory contract, which is included in Other current assets on the Consolidated Balance Sheets. These amounts are contractually required to be set aside, and the counterparty can exchange the cash for another form of performance assurance at its discretion.

Related Party Transactions

In the first quarter of 2021, a related party relationship was established as a result of a member of the Company’s Board of Directors being named an executive officer of one of the Company’s preexisting suppliers. The related party transactions with this supplier consist of the purchase of raw materials. Purchases from the related party supplier were $22 million and $72 million for the three and nine months ended September 30, 2023, respectively, and $42 million and $102 million for the three and nine months ended September 30, 2022, respectively. As of September 30, 2023 and December 31, 2022, amounts due to the related party supplier were $5 million and $3 million, respectively.

Table of Contents

- 11 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

1. GENERAL (continued)

Supplier Finance Programs

We review supplier terms and conditions on an ongoing basis, and have negotiated payment terms extensions in recent years in connection with our efforts to reduce working capital and improve cash flow. Separate from those terms extension actions, certain of our subsidiaries have entered into paying agency agreements with third-party administrators. These voluntary supply chain finance programs (collectively, the “Programs”) generally give participating suppliers the ability to sell, or otherwise pledge as collateral, their receivables from the Company to the participating financial institutions, at the sole discretion of both the suppliers and financial institutions. The Company is not a party to the arrangements between the suppliers and the financial institutions. The Company’s obligations to its suppliers, including amounts due and scheduled payment dates, are not impacted by the suppliers’ decisions to sell, or otherwise pledge as collateral, amounts under these arrangements. The Company’s payment terms to the financial institutions, including the timing and amount of payments, are based on the original supplier invoices. One of the Programs includes a parent guarantee to the participating financial institution for a certain U.S. subsidiary that, at the time of the respective program’s inception in 2015, was a guarantor subsidiary of the Company’s Credit Agreement. The obligations are presented as Accounts payable within Total current liabilities on the Consolidated Balance Sheets and all activity related to the obligations is presented within operating activities on the Consolidated Statements of Cash Flow.

The Company’s confirmed outstanding obligations under the Programs totaled $205 million and $234 million as of September 30, 2023 and December 31, 2022, respectively. The amounts of invoices paid under the Programs totaled $454 million and $481 million for the nine months ended September 30, 2023 and September 30, 2022, respectively.

Accounting Pronouncements

The following table summarizes recent Accounting Standards Updates (“ASUs”) issued by the Financial Accounting Standards Board (“FASB”) that had an impact or could have an impact on the Company’s Consolidated Financial Statements:



Standard	Description	Effective Date for Company	Effect on the Consolidated Financial Statements



Recently issued standards:
ASU 2023-05 "Business Combinations - Joint Venture Formations (Subtopic 805-60)"	This standard modifies the accounting for contributions made to a joint venture, upon formation, in a joint venture's separate financial statements.	January 1, 2025	We do not believe the adoption of this guidance will have a material effect on our consolidated financial statements.

Table of Contents

- 12 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

2. SEGMENT INFORMATION

The Company has three reportable segments: Composites, Insulation and Roofing. Accounting policies for the segments are the same as those for the Company. The Company’s three reportable segments are defined as follows:

Composites – Within our Composites segment, the Company manufactures, fabricates and sells glass reinforcements in the form of fiber. Glass reinforcement materials are also used by the Composites segment to manufacture and sell high value applications in the form of fabrics, non-wovens and other specialized products.

Insulation – Within our Insulation segment, the Company manufactures and sells thermal and acoustical batts, loosefill insulation, spray foam insulation, foam sheathing and accessories. It also manufactures and sells glass fiber pipe insulation, energy efficient flexible duct media, bonded and granulated mineral wool insulation, cellular glass insulation, and foam insulation used in above- and below-grade construction applications.

Roofing – Within our Roofing segment, the Company manufactures and sells residential roofing shingles, oxidized asphalt materials, and roofing components used in residential and commercial construction and specialty applications.

NET SALES

The following tables show a disaggregation of our Net sales by segment and geographic region (in millions). Corporate eliminations (shown below) largely reflect intercompany sales from Composites to Roofing. External customer sales are attributed to geographic region based upon the location from which the product is sold to the external customer.


	For the three months ended September 30, 2023
Reportable Segments	Composites		Insulation		Roofing		Eliminations		Consolidated
Disaggregation Categories
U.S. residential	$	98	$	351	$	1,009	$	(82)	$	1,376
U.S. commercial and industrial	201		218		49		(2)		466
Total United States	299		569		1,058		(84)		1,842
Europe	115		191		5		(1)		310
Asia-Pacific	111		37		—		—		148
Rest of world	42		116		21		—		179
NET SALES	$	567	$	913	$	1,084	$	(85)	$	2,479


	For the three months ended September 30, 2022
Reportable Segments	Composites		Insulation		Roofing		Eliminations		Consolidated
Disaggregation Categories
U.S. residential	$	96	$	400	$	912	$	(75)	$	1,333
U.S. commercial and industrial	222		204		54		—		480
Total United States	318		604		966		(75)		1,813
Europe	141		201		5		(2)		345
Asia-Pacific	126		42		1		—		169
Rest of world	53		118		31		—		202
NET SALES	$	638	$	965	$	1,003	$	(77)	$	2,529

Table of Contents

- 13 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

2. SEGMENT INFORMATION (continued)



	For the nine months ended September 30, 2023
Reportable Segments	Composites		Insulation		Roofing		Eliminations		Consolidated
Disaggregation Categories
U.S. residential	$	270	$	1,045	$	2,902	$	(230)	$	3,987
U.S. commercial and industrial	656		647		113		(6)		1,410
Total United States	926		1,692		3,015		(236)		5,397
Europe	387		586		13		(2)		984
Asia-Pacific	334		109		1		—		444
Rest of world	125		350		73		—		548
NET SALES	$	1,772	$	2,737	$	3,102	$	(238)	$	7,373



	For the nine months ended September 30, 2022
Reportable Segments	Composites		Insulation		Roofing		Eliminations		Consolidated
Disaggregation Categories
U.S. residential	$	277	$	1,125	$	2,620	$	(204)	$	3,818
U.S. commercial and industrial	657		585		125		(3)		1,364
Total United States	934		1,710		2,745		(207)		5,182
Europe	543		611		16		(5)		1,165
Asia-Pacific	422		118		5		—		545
Rest of world	172		319		93		—		584
NET SALES	$	2,071	$	2,758	$	2,859	$	(212)	$	7,476

Table of Contents

- 14 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

2. SEGMENT INFORMATION (continued)

EARNINGS BEFORE INTEREST AND TAXES

Earnings before interest and taxes (“EBIT”) by segment consist of net sales less related costs and expenses, and are presented on a basis that is used internally for evaluating segment performance. Certain items, such as general corporate expenses or income and certain other expense or income items, are excluded from the internal evaluation of segment performance. Accordingly, these items are not reflected in EBIT for our reportable segments and are included within Corporate, Other and Eliminations.

The following table summarizes EBIT by segment (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Reportable Segments
Composites	$	80	$	126	$	216	$	434
Insulation	150		173		469		459
Roofing	343		229		890		663
Total reportable segments	573		528		1,575		1,556
Restructuring costs	(41)		(12)		(106)		(29)
Gain on sale of Shanghai, China facility	—		—		—		27

Gain on sale of Santa Clara, California site	—		—		189		—
Gains on sale of certain precious metals	—		7		2		18


Paroc marine recall	(14)		—		(14)		—
Acquisition and divestiture-related costs	—		(2)		—		(5)
Impairment loss on Chambery, France assets held for sale	—		—		—		(29)
Gain on remeasurement of Fiberteq equity investment	—		130		—		130
General corporate expense and other	(55)		(41)		(162)		(127)
Total corporate, other and eliminations	(110)		82		(91)		(15)
EBIT	$	463	$	610	$	1,484	$	1,541

3. INVENTORIES

Inventories consist of the following (in millions):


	September 30, 2023		December 31, 2022
Finished goods	$	771	$	843
Materials and supplies	461		491
Total inventories	$	1,232	$	1,334

Table of Contents

- 15 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

4. DERIVATIVE FINANCIAL INSTRUMENTS

The Company is exposed to, among other risks, the impact of changes in commodity prices, foreign currency exchange rates, and interest rates in the normal course of business. The Company’s risk management program is designed to manage the exposure and volatility arising from these risks, and utilizes derivative financial instruments to offset a portion of these risks. The Company uses derivative financial instruments only to the extent necessary to hedge identified business risks, and does not enter into such transactions for trading purposes.

The Company generally does not require collateral or other security with counterparties to these financial instruments and is therefore subject to credit risk in the event of nonperformance; however, the Company monitors credit risk and currently does not anticipate nonperformance by other parties. Contracts with counterparties generally contain right of offset provisions. These provisions effectively reduce the Company’s exposure to credit risk in situations where the Company has gain and loss positions outstanding with a single counterparty. It is the Company’s policy to offset on the Consolidated Balance Sheets the amounts recognized for derivative instruments with any cash collateral arising from derivative instruments executed with the same counterparty under a master netting agreement. As of September 30, 2023 and December 31, 2022, the Company did not have any amounts on deposit with any of its counterparties, nor did any of its counterparties have any amounts on deposit with the Company.

Derivative Fair Values

Our derivatives consist of natural gas forward swaps and foreign exchange forward contracts, all of which are over-the-counter and not traded through an exchange. The Company uses widely accepted valuation tools to determine fair value, such as discounting cash flows to calculate a present value for the derivatives. The models use Level 2 inputs, such as forward curves and other commonly quoted observable transactions and prices. The fair value of our derivatives and hedging instruments are all classified as Level 2 investments within the three-tier hierarchy.

The following table presents the fair value of derivatives and hedging instruments and their respective location on the Consolidated Balance Sheets (in millions):


		Fair Value at
	Location	September 30, 2023		December 31, 2022
Derivative assets designated as hedging instruments:






Cash flow hedges:
Natural gas forward swaps	Other current assets	$	—	$	2


Derivative liabilities designated as hedging instruments:







Cash flow hedges:
Natural gas forward swaps	Other current liabilities	$	15	$	32


Derivative assets not designated as hedging instruments:

Foreign exchange forward contracts	Other current assets	$	1	$	1

Derivative liabilities not designated as hedging instruments:

Foreign exchange forward contracts	Other current liabilities	$	1	$	2

Table of Contents

- 16 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

4. DERIVATIVE FINANCIAL INSTRUMENTS (continued)

Consolidated Statements of Earnings Activity

The following table presents the impact and respective location of derivative activities on the Consolidated Statements of Earnings (in millions):


		Three Months Ended September 30,				Nine Months Ended September 30,
	Location	2023		2022		2023		2022
Derivative activity designated as hedging instruments:
Natural gas cash flow hedges:
Amount of loss (gain) reclassified from AOCI (as defined below) into earnings (a)	Cost of sales	$	10	$	(21)	$	42	$	(47)


Cross-currency swap net investment hedges:
Amount of gain recognized in earnings on derivative amounts excluded from effectiveness testing	Interest expense, net	$	—	$	—	$	—	$	(1)


Derivative activity not designated as hedging instruments:


Foreign currency:
Amount of (gain) loss recognized in earnings (b)	Other expense (income), net	$	—	$	(26)	$	4	$	(54)
Treasury interest rate lock:
Amount of gain recognized in earnings	Other expense (income), net	$	—	$	(6)	$	—	$	(6)

(a)Accumulated Other Comprehensive Earnings (Deficit) (“AOCI”)

(b)Gains related to foreign currency derivatives were substantially offset by net revaluation impacts on foreign currency denominated balance sheet exposures, which were also recorded in Other expense (income), net. Please refer to the “Other Derivatives” section below for additional detail.

Consolidated Statements of Comprehensive Earnings Activity

The following table presents the impact of derivative activities on the Consolidated Statements of Comprehensive Earnings (in millions):


		Amount of Gain Recognized in Comprehensive Earnings
		Three Months Ended September 30,				Nine Months Ended September 30,
Hedging Type	Derivative Financial Instrument	2023		2022		2023		2022
Net investment hedge	Cross-currency swaps	$	—	$	—	$	—	$	(5)
Cash flow hedge	Natural gas forward swaps	$	(6)	$	(4)	$	(14)	$	(17)
Cash flow hedge	Treasury interest rate lock	$	—	$	(2)	$	—	$	(21)

Cash Flow Hedges

The Company uses a combination of derivative financial instruments, which qualify as cash flow hedges, and physical contracts to manage forecasted exposure to electricity and natural gas prices. As of September 30, 2023, the notional amounts of these natural gas forward swaps was 7 million MMBtu (or MMBtu equivalent) based on U.S. and European indices. The Company has designated these natural gas forward swaps as cash flow hedges, with the last hedge maturing no later than December 2024. A net unrecognized loss of $15 million related to these natural gas forward swaps was included in AOCI as of September 30, 2023, $15 million of which is expected to be reclassified into earnings within the next twelve months.

Table of Contents

- 17 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

4. DERIVATIVE FINANCIAL INSTRUMENTS (continued)

In 2020, the Company entered into a $175 million forward U.S. Treasury rate lock agreement to manage the U.S. Treasury portion of its interest rate risk associated with the anticipated issuance of certain 10-year fixed rate senior notes. The Company designated this forward U.S. Treasury rate lock agreement, which expired on December 15, 2022, as a cash flow hedge. The locked fixed rate of this agreement was 0.994%. In September 2022, a gain of $6 million was recognized as a result of a change in the forecasted issuance of certain senior notes. In December 2022, the Company received cash of $37 million upon the settlement of the rate lock agreement, of which $31 million will be amortized as a component of interest expense upon the future issuance of senior notes. This unrecognized gain of $31 million was included in AOCI as of September 30, 2023.

Net Investment Hedges

The Company has translation exposure resulting from translating the financial statements of foreign subsidiaries into United States Dollars, which is recognized in Currency translation adjustment (a component of AOCI). In the second quarter of 2022, the Company terminated the remaining cross-currency forward contracts related to the hedged portions of the net investment in foreign subsidiaries, resulting in cash proceeds of $11 million.

Other Derivatives

The Company uses forward currency exchange contracts to manage existing exposures to foreign exchange risk related to assets and liabilities recorded on the Consolidated Balance Sheets. As of September 30, 2023, the Company had notional amounts of $159 million for non-designated derivative financial instruments related to foreign currency exposures in United States Dollars primarily related to the Brazilian Real, Chinese Yuan, Indian Rupee, Hong Kong Dollar, South Korean Won, and the European Euro. In addition, the Company had notional amounts of $30 million for non-designated derivative financial instruments related to foreign currency exposures in European Euro primarily related to the Polish Złoty and the British Pound Sterling.

5. GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

The Company tests goodwill and indefinite-lived intangible assets for impairment during the fourth quarter of each year, or more frequently should circumstances change or events occur that would more likely than not reduce the fair value of a reporting unit below its carrying value.

No testing was deemed necessary in the first nine months of 2023. The changes in the net carrying value of goodwill by segment are as follows (in millions):


	Composites		Insulation		Roofing		Total
Gross carrying amount at December 31, 2022	$	425	$	1,499	$	394	$	2,318


Acquisitions and Divestitures	(1)		—		—		(1)

Foreign currency translation	—		(10)		(1)		(11)
Gross carrying amount at September 30, 2023	424		1,489		393		2,306

Accumulated impairment losses at December 31, 2022	—		(935)		—		(935)
Foreign currency translation	—		7		—		7
Accumulated impairment losses at September 30, 2023	—		(928)		—		(928)

Balance, net of impairment, at September 30, 2023	$	424	$	561	$	393	$	1,378

Table of Contents

- 18 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

5. GOODWILL AND OTHER INTANGIBLE ASSETS (continued)

Other Intangible Assets

The Company amortizes the cost of other intangible assets over their estimated useful lives which, individually, range up to 45 years. The Company’s future cash flows are not materially impacted by its ability to extend or renew agreements related to its amortizable intangible assets.

Other intangible assets consist of the following (in millions):


	September 30, 2023						December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Indefinite-lived trademarks and trade names	$	988	$	—	$	988	$	989	$	—	$	989
Amortizable intangible assets
Customer relationships	635		(295)		340		638		(243)		395
Technology	328		(202)		126		330		(187)		143
Trademarks	12		(1)		11		12		—		12
Other (a)	63		(2)		61		66		(3)		63
Total other intangible assets	$	2,026	$	(500)	$	1,526	$	2,035	$	(433)	$	1,602

(a)Other primarily includes emissions.

There are three indefinite-lived intangible assets that are at an increased risk of impairment. These intangible assets were partially impaired in the fourth quarter of 2022. If assumptions or estimates with respect to the Company’s future performance vary from what is expected, including those assumptions relating to interest rates, forecasted revenue, and economic and geopolitical uncertainty in Europe, future impairment analyses could result in a decline in fair value that may trigger a future impairment charge.

The following table presents the carrying values of these assets as of September 30, 2023:


Trade names and trademarks	September 30, 2023
European building and technical insulation trade name	$	86
Global cellular glass insulation trademark	$	80
Components branded roofing trademark	$	42

Amortization expense for intangible assets for the three and nine months ended September 30, 2023 was $28 million and $70 million, respectively. Amortization expense for intangible assets for the three and nine months ended September 30, 2022 was $14 million and $37 million, respectively. Amortization expense for intangible assets is estimated to be $27 million for the remainder of 2023.

Table of Contents

- 19 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

5. GOODWILL AND OTHER INTANGIBLE ASSETS (continued)

The estimated amortization expense for intangible assets for the next five fiscal years ended December 31 is as follows (in millions):


Period	Amortization
2024	$	64
2025	$	57
2026	$	42
2027	$	34
2028	$	33

6. PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following (in millions):


	September 30, 2023		December 31, 2022
Land	$	165	$	166
Buildings and leasehold improvements	1,242		1,221
Machinery and equipment	5,349		5,220
Construction in progress	526		522
	7,282		7,129
Accumulated depreciation	(3,594)		(3,400)
Property, plant and equipment, net	$	3,688	$	3,729

Machinery and equipment includes certain precious metals used in our production tooling, which comprise approximately 9% and 10% of total machinery and equipment as of September 30, 2023 and December 31, 2022, respectively. Precious metals used in our production tooling are depleted as they are consumed during the production process, which typically represents an annual expense of about 3% of the outstanding carrying value.

Our production tooling needs in our Composites segment are changing in response to economic and technological factors. As a result, we exchanged certain precious metals used in production tooling for certain other precious metals to be used in production tooling. These non-cash investing activities are not included in Net cash flow used for investing activities in the Consolidated Statements of Cash Flows. There were no non-cash exchanges during the three and nine months ended September 30, 2023. During the three and nine months ended September 30, 2022, these non-cash exchanges resulted in a net increase to Machinery and equipment of $7 million and $18 million, respectively, and gains totaling $7 million and $18 million, respectively. The gains are included in Other expense (income), net on the Consolidated Statements of Earnings and are reflected in the Corporate, Other and Eliminations reporting category. We do not expect these exchanges to materially impact our current or future capital expenditure requirements or rate of depletion.

Table of Contents

- 20 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

7. ACQUISITIONS

On September 1, 2022, the Company acquired the remaining 50% interest in Fiberteq, LLC (“Fiberteq”), the joint venture between Owens Corning and IKO Industries, Ltd, which produces high-quality wet-formed fiberglass mat for roofing applications, for $140 million, net of cash acquired. During the three months ended September 30, 2023, an additional $6 million of consideration was paid as a result of final working capital adjustments. The acquisition advances the Composites strategy to focus on high-value material solutions and expands Owens Corning’s capacity to produce non-woven mat. The Company’s 50% interest in Fiberteq was accounted for as an equity-method investment and had a carrying value of $17 million at the acquisition date. The Company used the discounted cash flow method to remeasure the previously held equity method investment to its fair value of $147 million, resulting in the recognition of a gain of $130 million, which was recorded in Gain on equity method investment on the 2022 Consolidated Statements of Earnings. The operating results for Fiberteq have been included in the Composites segment within the Consolidated Financial Statements since the date of the acquisition. The purchase price allocation included $58 million in intangible assets, which primarily consists of customer relationships with an estimated weighted average life of 3 years, a $62 million unfavorable contract liability and $242 million in goodwill, of which 50% is tax deductible. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material.

On August 1, 2022, the Company acquired Natural Polymers, LLC (“Natural Polymers”), an innovative manufacturer of spray polyurethane foam insulation for building and construction applications for $111 million, net of cash acquired. The acquisition advances the Owens Corning strategy to strengthen the Company’s core building and construction products and expand its addressable markets into higher-growth segments. The operating results for Natural Polymers have been included in the Insulation segment within the Consolidated Financial Statements since the date of the acquisition. The purchase price allocation included $44 million in intangible assets and $62 million in goodwill, all of which is tax deductible. The intangible assets consist of definite-lived trademarks of $5 million with an estimated weighted average life of 10 years, technology of $12 million with an estimated weighted average life of 6 years and customer relationships of $27 million with an estimated weighted average life of 17 years. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material.

On June 1, 2022, the Company acquired all of the outstanding assets of WearDeck®, a premium producer of composite weather-resistant decking for commercial and residential applications, for approximately $133 million, net of cash acquired. The acquisition advances the Composites business growth strategy to focus on high-value material solutions within the building and construction industry. The operating results for WearDeck® have been included in the Composites segment within the Consolidated Financial Statements since the date of the acquisition. The purchase price allocation included $38 million in intangible assets and $68 million in goodwill, of which $61 million is tax deductible. The intangible assets consist of definite-lived trademarks of $7 million with an estimated average life of 10 years, technology of $10 million with an estimated weighted average life of 11 years and customer relationships of $21 million with an estimated weighted average life of 15 years. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material.

On May 23, 2022, Owens Corning and Pultron Composites (“Pultron”) formed a joint venture (“JV”) to manufacture and sell fiberglass rebar. The Company contributed approximately $47 million to acquire a 65.5% controlling interest and has established a redeemable noncontrolling interest of $25 million related to Pultron, the minority holder. The JV expands Owens Corning’s capability to produce high-value material solutions by combining the Company’s glass-fiber material technology, channel access and extensive industry experience with Pultron’s manufacturing expertise and process efficiency. The fully consolidated operating results for the JV have been included in the Company’s Composites segment within the Consolidated Financial Statements since the date of the formation of the JV. Subsequent to the JV formation, the JV acquired assets and technology from Pultron for approximately $65 million. The purchase price allocation included $15 million in intangible assets, consisting of technology, with an estimated weighted average life of 15 years and $42 million in goodwill, of which $37 million is tax deductible. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material.

Table of Contents

- 21 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

8. DIVESTITURES

On March 3, 2023, the Company finalized the sale of its Insulation site in Santa Clara, California for total proceeds of $234 million, net of transaction fees. Total proceeds included a non-refundable deposit of $50 million received in the third quarter of 2021. As a result of this sale, the Company recognized a pre-tax gain of $189 million in the first quarter of 2023, which is recorded in Gain on sale of site on the Consolidated Statements of Earnings.

On November 24, 2022, the Company finalized the sale of its Russian operations within the Composites and Insulation segments. As a result of this sale, the Company received $104 million, net of cash sold, in consideration and recorded a pre-tax loss of $33 million in Other expense (income), net on the 2022 Consolidated Statements of Earnings.

On July 1, 2022, the Company finalized the sale of the European portion of the dry-use chopped strands (“DUCS”) product line located in Chambéry, France, within the Composites segment. As a result of this sale, the Company received $80 million, net of cash sold, in consideration and recorded a pre-tax loss of $30 million in Other expense (income), net on the 2022 Consolidated Statements of Earnings.

9. WARRANTIES

The Company records a liability for warranty obligations at the date the related products are sold. Adjustments are made as new information becomes available. Please refer to Note 1 of our 2022 Form 10-K for information about our separately-priced extended warranty contracts. A reconciliation of the warranty liability is as follows (in millions):


	Nine Months Ended September 30,
	2023		2022
Beginning balance	$	88	$	81
Amounts accrued for current year	18		16
Settlements of warranty claims	(10)		(9)
Ending balance	$	96	$	88

Table of Contents

- 22 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

10. RESTRUCTURING, ACQUISITION AND DIVESTITURE-RELATED COSTS

The Company may incur restructuring, transaction and integration costs related to acquisitions and divestitures, and may incur restructuring and other exit costs in connection with its global cost reduction, product line and productivity initiatives and the Company’s growth strategy.

Protective Packaging Exit

In connection with the exit of the Protective Packaging business, the Company estimates that it will incur cash charges of approximately $20 million, primarily related to severance and other exit costs. Additionally, the Company expects to incur total non-cash charges in the range of $65 to $75 million, primarily related to accelerated depreciation of property, plant and equipment and accelerated amortization of definite-lived intangibles.

During the first nine months of 2023, the Company recorded $61 million of charges, of which $49 million were non-cash charges, primarily related to accelerated depreciation and amortization and $12 million of cash charges, primarily related to severance.

Wabash Facility Closure

In April 2023, the Company took actions to support its strategy to operate a flexible and cost-efficient manufacturing network through decisions to relocate the Wabash, Indiana mineral wool operations to Joplin, Missouri, and to exit the granulated mineral wool market. These actions are expected to result in cumulative incremental costs of approximately $30 million, primarily related to severance and accelerated depreciation.

During the first nine months of 2023, the Company recorded $23 million of charges, primarily related to accelerated depreciation and severance.

European Operating Structure Optimization

In March 2023, the Company took actions to optimize the operating structure of its segments across Europe to increase its competitiveness. These actions are expected to result in cumulative incremental costs of approximately $20 million, primarily related to severance and other exit costs. During the first nine months of 2023, the Company recorded $12 million of charges primarily related to severance costs.

Composites Strategic Realignment Actions

On July 1, 2022, the Company finalized the sale of the European portion of the DUCS product line located in Chambéry, France, within the Composite’s segment. The Company recorded a pre-tax charge of $30 million in Other expense (income), net on the Consolidated Statements of Earnings in 2022 to reflect the fair value less cost to sell the assets. The Company also took actions to convert the DUCS manufacturing facilities located in Anderson, South Carolina and Kimchon, Korea to produce other glass fiber products needed to support our growth strategy in building and construction applications. As a result, during the first nine months of 2023, the Company recorded $3 million primarily related to other exit costs. The Company does not expect to recognize significant incremental costs related to these actions.

Roofing Restructuring Actions

In December 2021, the Company took actions to restructure operations within the Roofing segment’s components product line by relocating production assets from China to India, which allowed the business to optimize its manufacturing network and support a tariff mitigation strategy. During the first nine months of 2023, the Company recorded $2 million of charges primarily related to other exit costs. The Company does not expect to recognize significant incremental costs related to these actions.

Table of Contents

- 23 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

10. RESTRUCTURING, ACQUISITION AND DIVESTITURE-RELATED COSTS (continued)

Santa Clara Insulation Site

During the third quarter of 2021, the Company entered into a sales agreement for the Company’s Insulation site in Santa Clara, California, as part of the Company’s ongoing strategy to operate a flexible, cost-efficient manufacturing network and geographically locate its assets to better serve its customers. On March 3, 2023, the Company finalized the sale of this site for total proceeds of $234 million, net of transaction fees. Total proceeds included a non-refundable deposit of $50 million received in the third quarter of 2021.

During the first nine months of 2023, the Company recorded $5 million of charges, primarily related to other exit costs, associated with this action. The Company does not expect to recognize significant incremental costs related to this action.

Consolidated Statements of Earnings Classification

The following table presents the impact and respective location of total restructuring, acquisition and divestiture-related costs on the Consolidated Statements of Earnings, which are included within Corporate, Other and Eliminations (in millions):


		Three Months Ended September 30,				Nine Months Ended September 30,
Type of cost	Location	2023		2022		2023		2022
Accelerated depreciation	Cost of sales	$	23	$	9	$	46	$	22
Other exit costs	Cost of sales	7		1		15		4
Other exit costs	Marketing and administrative expenses	—		—		1		—
Acquisition and divestiture-related costs	Marketing and administrative expenses	—		2		—		5
Severance	Other expense (income), net	—		—		25		1
Other exit costs	Other expense (income), net	—		2		1		4
Accelerated amortization	Other expense (income), net	11		—		18		—
Gain on sale of Santa Clara, California site	Gain on sale of site	—		—		(189)		—
Acquisition-related costs	Gain on equity method investment	—		(130)		—		(130)

Total restructuring, acquisition and divestiture-related costs (gains)		$	41	$	(116)	$	(83)	$	(94)

Summary of Unpaid Liabilities

The following table summarizes the status of the unpaid liabilities from the Company’s restructuring activities (in millions):


	Protective Packaging Exit		Wabash Facility Closure		European Operating Structure Optimization		Composites Strategic Realignment Actions		Roofing Restructuring Actions		Santa Clara Insulation Site
Balance at December 31, 2022	$	—	$	—	$	—	$	1	$	—	$	7
Restructuring costs	61		23		12		3		2		5
Payments	—		—		(4)		(3)		(2)		(11)
Accelerated depreciation and other non-cash items	(49)		(20)		—		—		—		(1)


Balance at September 30, 2023	$	12	$	3	$	8	$	1	$	—	$	—
Cumulative charges incurred	$	61	$	23	$	12	$	12	$	10	$	65

As of September 30, 2023, the remaining liability balance was comprised of $24 million of severance, which the Company expects to pay over the next twelve months.

Table of Contents

- 24 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

11. DEBT

Details of the Company’s outstanding long-term debt, as well as the fair values, are as follows (in millions):


	September 30, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
4.200% senior notes, net of discount and financing fees, due 2024	$	399	98	%	$	398	99	%
3.400% senior notes, net of discount and financing fees, due 2026	398		94	%	398		94	%
3.950% senior notes, net of discount and financing fees, due 2029	447		91	%	446		90	%
3.875% senior notes, net of discount and financing fees, due 2030	298		88	%	298		89	%
7.000% senior notes, net of discount and financing fees, due 2036	368		106	%	368		107	%
4.300% senior notes, net of discount and financing fees, due 2047	589		76	%	589		78	%
4.400% senior notes, net of discount and financing fees, due 2048	391		76	%	390		78	%


Various finance leases, due through 2050 (a)	142		100	%	131		100	%
Other	1		N/A		2		N/A
Total long-term debt	3,033		N/A		3,020		N/A
Less – current portion (a)	31		100	%	28		100	%
Long-term debt, net of current portion	$	3,002	N/A		$	2,992	N/A

(a)The Company determined that the book value of the above noted long-term debt instruments approximates fair value.

The fair values of the Company’s outstanding long-term debt instruments were estimated using market observable inputs, including quoted prices in active markets, market indices and interest rate measurements. Within the hierarchy of fair value measurements, these are Level 2 fair values.

Senior Notes

The Company issued $300 million of 2030 senior notes on May 12, 2020. Interest on the notes is payable semiannually in arrears on June 1 and December 1 each year, beginning on December 1, 2020. The proceeds from these notes were used for general corporate purposes.

The Company issued $450 million of 2029 senior notes on August 12, 2019. Interest on the notes is payable semiannually in arrears on February 15 and August 15 each year, beginning on February 15, 2020. The proceeds from these notes were used to repay $416 million of our 2022 senior notes and $34 million of our 2036 senior notes.

The Company issued $400 million of 2048 senior notes on January 25, 2018. Interest on the notes is payable semiannually in arrears on January 30 and July 30 each year, beginning on July 30, 2018. The proceeds from these notes were used, along with borrowings on a $600 million term loan commitment and borrowings on the Receivables Securitization Facility (as defined below), to fund the purchase of Paroc in the first quarter of 2018.

The Company issued $600 million of 2047 senior notes on June 26, 2017. Interest on the notes is payable semiannually in arrears on January 15 and July 15 each year, beginning on January 15, 2018. A portion of the proceeds from these notes was used to fund the purchase of Pittsburgh Corning in 2017 and for general corporate purposes. The remaining proceeds were used to repay $144 million of our 2019 senior notes and $140 million of our 2036 senior notes.

The Company issued $400 million of 2026 senior notes on August 8, 2016. Interest on the notes is payable semiannually in arrears on February 15 and August 15 each year, beginning on February 15, 2017. A portion of the proceeds from these notes was used to repay $158 million of our 2016 senior notes. The remaining proceeds were used to pay down portions of our Receivables Securitization Facility and for general corporate purposes.

Table of Contents

- 25 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

11. DEBT (continued)

The Company issued $400 million of 2024 senior notes on November 12, 2014. Interest on the notes is payable semiannually in arrears on June 1 and December 1 each year, beginning on June 1, 2015. A portion of the proceeds from these notes was used to repay $242 million of our 2016 senior notes and $105 million of our 2019 senior notes. The remaining proceeds were used to pay down our Senior Revolving Credit Facility (as defined below), finance general working capital needs, and for general corporate purposes.

The Company issued $550 million of 2036 senior notes on October 31, 2006. Interest on the notes is payable semiannually in arrears on June 1 and December 1 each year, beginning on June 1, 2007. The proceeds of these notes were used to pay certain unsecured and administrative claims, finance general working capital needs and for general corporate purposes.

Collectively, the senior notes above are referred to as the “Senior Notes.” The Senior Notes are general unsecured obligations of the Company and rank pari passu with all existing and future senior unsecured indebtedness of the Company. The Company has the option to redeem all or part of the Senior Notes at any time at a “make-whole” redemption price. The Company is subject to certain covenants in connection with the issuance of the Senior Notes that it believes are usual and customary. The Company was in compliance with these covenants as of September 30, 2023.

Senior Revolving Credit Facility

The Company has an $800 million senior revolving credit facility (the “Senior Revolving Credit Facility”) with a maturity date in July 2026 that includes both borrowings and letters of credit. Borrowings under the Senior Revolving Credit Facility may be used for general corporate purposes and working capital. The Company has the discretion to borrow under multiple options, which provide for varying terms and interest rates including the United States prime rate, federal funds rate plus a spread or the Secured Overnight Financing Rate (“Term SOFR”) plus a spread.

The Senior Revolving Credit Facility contains various covenants, including a maximum allowed leverage ratio, that the Company believes are usual and customary for a senior unsecured credit agreement. The Company was in compliance with these covenants as of September 30, 2023. Please refer to the Credit Facility Utilization section below for liquidity information as of September 30, 2023.

In May 2023, the Senior Revolving Credit Facility was amended to formally adopt Term SOFR plus a spread as the benchmark reference rate in anticipation of the June 30, 2023 discontinuation of rhe London Interbank Offered Rate (“LIBOR”).

Receivables Securitization Facility

The Company has a Receivables Purchase Agreement (“RPA”) that is accounted for as secured borrowings in accordance with Accounting Standards Codification (“ASC”) 860, “Accounting for Transfers and Servicing.” Owens Corning Sales, LLC and Owens Corning Receivables LLC, each a subsidiary of the Company, have a $280 million RPA with certain financial institutions. The Company has the ability to borrow at the lenders’ cost of funds, which approximates A-1/P-1 commercial paper rates vs. Term SOFR, plus a spread. As of the June 30, 2023 discontinuation of LIBOR, fallback language in the RPA took effect to transition the facility to Term SOFR plus a spread. The RPA has been amended from time to time, with a maturity date in April 2024.

The RPA contains various covenants, including a maximum allowed leverage ratio that the Company believes are usual and customary for a securitization facility. The Company was in compliance with these covenants as of September 30, 2023. Please refer to the Credit Facility Utilization section below for liquidity information as of September 30, 2023.

Owens Corning Receivables LLC’s sole business consists of the purchase or acceptance through capital contributions of trade receivables and related rights from Owens Corning Sales, LLC and the subsequent retransfer of or granting of a security interest in such trade receivables and related rights to certain purchasers who are party to the RPA. Owens Corning Receivables LLC is a separate legal entity with its own separate creditors who will be entitled, upon its liquidation, to be satisfied out of Owens Corning Receivables LLC’s assets prior to any assets or value in Owens Corning Receivables LLC becoming available to Owens Corning Receivables LLC’s equity holders. The assets of Owens Corning Receivables LLC are not available to pay creditors of the Company or any other affiliates of the Company or Owens Corning Sales, LLC.

Table of Contents

- 26 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

11. DEBT (continued)

Credit Facility Utilization

The following table shows how the Company utilized its primary sources of liquidity (in millions):


	Balance at September 30, 2023
	Senior Revolving Credit Facility		Receivables Securitization Facility
Facility size or borrowing limit	$	800	$	280
Collateral capacity limitation on availability	N/A		—
Outstanding borrowings	—		—
Outstanding letters of credit	4		1
Availability on facility	$	796	$	279

Short-Term Debt

Short-term borrowings were less than $1 million and $1 million as of September 30, 2023 and December 31, 2022, respectively. Short-term borrowings consisted of various operating lines of credit. The weighted average interest rate on all short-term borrowings was approximately 3.0% and 2.8% as of September 30, 2023 and December 31, 2022, respectively.

Table of Contents

- 27 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

12. PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

Pension Plans

The Company sponsors defined benefit pension plans. Under the plans, pension benefits are based on an employees’ years of service and, for certain categories of employees, qualifying compensation. Company contributions to these pension plans are determined by an independent actuary to meet or exceed minimum funding requirements. In our U.S. plans, the unrecognized cost of any retroactive amendments and actuarial gains and losses are amortized over the average remaining life expectancy of the inactive participants as substantially all of the plan participants are inactive. In our non-U.S. plans, the unrecognized cost of any retroactive amendments and actuarial gains and losses are amortized over the average future service period of plan participants expected to receive benefits.

The following table presents the components of net periodic pension cost (in millions):


	Three Months Ended September 30,
	2023						2022
	U.S.		Non-U.S.		Total		U.S.		Non-U.S.		Total
Components of Net Periodic Pension Cost
Service cost	$	1	$	—	$	1	$	3	$	1	$	4
Interest cost	8		4		12		6		3		9
Expected return on plan assets	(10)		(4)		(14)		(9)		(4)		(13)

Amortization of actuarial loss	1		1		2		2		—		2




Net periodic pension cost	$	—	$	1	$	1	$	2	$	—	$	2



	Nine Months Ended September 30,
	2023						2022
	U.S.		Non-U.S.		Total		U.S.		Non-U.S.		Total
Components of Net Periodic Pension Cost
Service cost	$	2	$	2	$	4	$	5	$	3	$	8
Interest cost	24		12		36		18		8		26
Expected return on plan assets	(30)		(11)		(41)		(27)		(12)		(39)

Amortization of actuarial loss	4		2		6		8		1		9




Net periodic pension cost	$	—	$	5	$	5	$	4	$	—	$	4

The Company expects to contribute $20 million in cash to its defined benefit pension plans during 2023. Actual contributions to the plans may change as a result of a variety of factors, including changes in laws that impact funding requirements. The Company made cash contributions of $4 million to its defined benefit pension plans during the nine months ended September 30, 2023.

On October 12, 2023, the Company entered into an agreement to purchase a non-participating annuity contract from an insurance company to transfer $291 million of the Company's outstanding pension projected benefit obligation related to certain U.S. and non U.S. pension plans. The transaction is expected to close in the fourth quarter of 2023 and will be funded with pension plan assets of $268 million. As a result of this transaction, the Company will recognize a pre-tax settlement charge in the range of approximately $135 million to $150 million in the fourth quarter of 2023 from the accelerated recognition of a pro rata portion of plan actuarial losses. This charge will be recorded in Non-operating (income) expense on the Consolidated Statements of Earnings. The transaction is not expected to have a material impact on the plans' funded statuses.

Table of Contents

- 28 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

12. PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (continued)

Postemployment and Postretirement Benefits Other than Pensions (“OPEB”)

The Company maintains healthcare and life insurance benefit plans for certain retired employees and their dependents. The health care plans in the United States are non-funded and pay either (1) stated percentages of covered medically necessary expenses, after subtracting payments by Medicare or other providers and after stated deductibles have been met, or (2) fixed amounts of medical expense reimbursement.

The following table provides the components of net periodic postretirement benefit income for U.S. plans for the periods indicated (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Components of Net Periodic Postretirement Benefit Income
Service cost	$	—	$	—	$	—	$	1
Interest cost	1		1		4		3

Amortization of actuarial gain	(2)		(2)		(6)		(6)
Net periodic postretirement benefit income	$	(1)	$	(1)	$	(2)	$	(2)

There was no significant net periodic postretirement income attributable to non-U.S. plans.

Table of Contents

- 29 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

13. CONTINGENT LIABILITIES AND OTHER MATTERS

The Company may be involved in various legal and regulatory proceedings relating to employment, antitrust, tax, product liability, environmental, contracts, intellectual property and other matters (collectively, “Proceedings”). The Company regularly reviews the status of such Proceedings along with legal counsel. Liabilities for such Proceedings are recorded when it is probable that the liability has been incurred and when the amount of the liability can be reasonably estimated. Liabilities are adjusted when additional information becomes available. Management believes that the amount of any reasonably possible losses in excess of any amounts accrued, if any, with respect to such Proceedings or any other known claim, including the matters described below under the caption Environmental Matters (the “Environmental Matters”), are not material to the Company’s financial statements, except as noted below. Management believes that the ultimate disposition of the Proceedings and the Environmental Matters will not have a material adverse effect on the Company’s financial condition. While the likelihood is remote, the disposition of the Proceedings and Environmental Matters could have a material impact on the results of operations, cash flows or liquidity in any given reporting period.

Litigation and Regulatory Proceedings

The Company is involved in litigation and regulatory proceedings from time to time in the regular course of its business. The Company believes that adequate provisions for resolution of all contingencies, claims and pending matters have been made for probable losses that are reasonably estimable.

During the second quarter of 2023, the Company’s subsidiary, Paroc Group OY (“Paroc”), which the Company acquired in 2018, notified the appropriate European maritime regulatory authorities that specific insulation products in its marine insulation product line may not meet certain fire safety requirements in accordance with their certifications. Paroc has voluntarily withdrawn these specific products from the market, issued recalls, and suspended distribution and sales of these products. Paroc is cooperating with the applicable regulatory and government authorities and continues to work with its customers and end-users to assist with remediation. We established an estimated liability for expected future costs related to this matter on our Consolidated Balance Sheet as of September 30, 2023. The estimated liability is primarily based on assumptions related to the estimated costs of the remedy for the recall. We will reevaluate these assumptions each period, and the related liability may be adjusted when factors indicate that the liability is either not sufficient to cover or exceeds the estimated product recall costs. Based on the factors currently known, we believe the appropriate liability has been established at this time. It is reasonably possible that additional product recall costs could be incurred that exceed the estimated liability by amounts that could be material to our consolidated financial statements.

Environmental Matters

The Company has established policies and procedures designed to ensure that its operations are conducted in compliance with all relevant laws and regulations and that enable the Company to meet its high standards for corporate sustainability and environmental stewardship. Our manufacturing facilities are subject to numerous foreign, federal, state and local laws and regulations relating to the presence of hazardous materials, pollution and protection of the environment, including emissions to air, reductions of greenhouse gases, discharges to water, management of hazardous materials, handling and disposal of solid wastes, use of chemicals in our manufacturing processes, and remediation of contaminated sites. All Company manufacturing facilities are required to use an ISO 14001 or equivalent environmental management system. The Company’s 2030 Sustainability Goals include significant global reductions in energy use, water consumption, waste to landfill, and emissions of greenhouse gases, fine particulate matter, and volatile organic air emissions, and protection of biodiversity.

Owens Corning is involved in remedial response activities and is responsible for environmental remediation at a number of sites, including certain of its currently owned or formerly owned plants. These responsibilities arise under a number of laws, including, but not limited to, the Federal Resource Conservation and Recovery Act, and similar state or local laws pertaining to the management and remediation of hazardous materials and petroleum. The Company has also been named a potentially responsible party under the U.S. Federal Superfund law, or state equivalents, at a number of disposal sites. The Company became involved in these sites as a result of government action or in connection with business acquisitions. As of September 30, 2023, the Company was involved with a total of 22 sites worldwide, including 10 Superfund and state or country equivalent sites and 12 owned or formerly owned sites. None of the liabilities for these sites are individually significant to the Company.

Table of Contents

- 30 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

13. CONTINGENT LIABILITIES AND OTHER MATTERS (continued)

Remediation activities generally involve a potential range of activities and costs related to soil, groundwater, and sediment contamination. This can include pre-cleanup activities such as fact-finding and investigation, risk assessment, feasibility studies, remedial action design and implementation (where actions may range from monitoring to removal of contaminants, to installation of longer-term remediation systems). A number of factors affect the cost of environmental remediation, including the number of parties involved in a particular site, the determination of the extent of contamination, the length of time the remediation may require, the complexity of environmental regulations, variability in clean-up standards, the need for legal action, and changes in remediation technology. Taking these factors into account, Owens Corning reasonably estimates the costs of remediation to be paid over a period of years. The Company accrues an amount on an undiscounted basis, when a liability is probable and reasonably estimable. Actual cost may differ from these estimates for the reasons mentioned above. At September 30, 2023, the Company had an accrual totaling $4 million for these costs, of which the current portion is $1 million. Changes in required remediation procedures or timing of those procedures, or discovery of contamination at additional sites, could result in material increases to the Company’s environmental obligations.

Table of Contents

- 31 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

14. STOCK COMPENSATION

Description of the Plan

On April 20, 2023, the Company’s stockholders approved the Owens Corning 2023 Stock Plan (the “2023 Stock Plan”), which authorizes grants of stock options, stock appreciation rights, stock awards (including restricted stock awards, restricted stock units and bonus stock awards), performance share awards and performance share units. At September 30, 2023, the number of shares remaining available under the 2023 Stock Plan for all stock awards was approximately 3.4 million.

Prior to the 2023 Stock Plan, employees were eligible to receive stock awards under the Owens Corning 2019 Stock Plan.

Total Stock-Based Compensation Expense

Stock-based compensation expense included in Marketing and administrative expenses in the accompanying Consolidated Statements of Earnings is as follows (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Total stock-based compensation expense	$	11	$	13	$	38	$	38

Stock Options

The Company has granted stock options under its stockholder approved stock plans. The Company calculates a weighted-average grant-date fair value using a Black-Scholes valuation model for options granted. Compensation expense for options is measured based on the fair market value of the option on the date of grant, and is recognized on a straight-line basis over a four year vesting period. In general, the exercise price of each option awarded was equal to the closing market price of the Company’s common stock on the date of grant and an option’s maximum term is 10 years. The volatility assumption was based on a benchmark study of our peers prior to 2014. Starting with the options granted in 2014, the volatility was based on the Company’s historic volatility.

The Company has not granted stock options since the year ended December 31, 2014. As of September 30, 2023, there was no unrecognized compensation cost related to stock options and the exercise price on outstanding stock options was $37.65.

The following table summarizes the Company’s stock option activity:


		Weighted-Average
	Number of Options	Exercise Price		Remaining Contractual Life (in years)	Intrinsic Value (in millions)
Outstanding, December 31, 2022	27,000	$	37.65	1.1	$	1

Exercised	(17,900)	37.65


Outstanding, September 30, 2023	9,100	$	37.65	0.4	$	1
Exercisable, September 30, 2023	9,100	$	37.65	0.4	$	1

Table of Contents

- 32 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

14. STOCK COMPENSATION (continued)

Restricted Stock Units

The Company has granted restricted stock units (“RSUs”) under its stockholder approved stock plans. All outstanding RSUs will fully settle in stock. Compensation expense for RSUs is measured based on the closing market price of the stock at date of grant and is recognized on a straight-line basis over the vesting period, which is typically three or four years. The stock plans allow alternate vesting schedules for death, disability, and retirement. The weighted-average grant date fair value of RSUs granted in 2023 was $101.19.

The following table summarizes the Company’s RSU activity:



	Number of RSUs	Weighted-Average Fair Value
Balance at December 31, 2022	1,276,160	$	69.16
Granted	353,809	101.19
Vested	(355,975)	68.82
Forfeited	(64,489)	86.96
Balance at September 30, 2023	1,209,505	$	77.37

As of September 30, 2023, there was $41 million of total unrecognized compensation cost related to RSUs. That cost is expected to be recognized over a weighted-average period of 2.43 years. The total grant date fair value of shares vested during the nine months ended September 30, 2023 and 2022 was $24 million and $21 million, respectively.

Performance Share Units

The Company has granted performance share units (“PSUs”) as a part of its long-term incentive plan program under its stockholder approved stock plans. All outstanding performance share units will fully settle in stock. The amount of stock ultimately distributed from all performance share units is contingent on meeting internal Company-based metrics or an external-based stock performance metric.

In the nine months ended September 30, 2023, the Company granted both internal Company-based and external-based metric PSUs.

Internal Company-based metrics

The internal Company-based metric PSUs are based on various Company metrics and typically vest over a three-year period. The amount of stock distributed will vary from 0% to 200% of PSUs awarded depending on each award’s design and performance versus the internal Company-based metrics.

The initial fair value for all internal Company-based metric PSUs assumes that the performance goals will be achieved and is based on the grant date stock price. This assumption is monitored quarterly and if it becomes probable that such goals will not be achieved or will be exceeded, compensation expense recognized will be adjusted and previous surplus compensation expense recognized will be reversed or additional expense will be recognized. The expected term represents the period from the grant date to the end of the vesting period. Pro-rata vesting may be utilized in the case of death, disability or approved retirement and awards, if earned, will be paid at the end of the vesting period.

Table of Contents

- 33 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

14. STOCK COMPENSATION (continued)

External-based metrics

The external-based metric PSUs vest after a three-year period. Outstanding grants issued in or after 2018 until 2022 were based on the Company’s total stockholder return relative to the performance of the Dow Jones U.S. Construction & Materials Index. Outstanding grants issued in 2023 are based on the Company’s total stockholder return relative to a peer group. The amount of stock distributed will vary from 0% to 200% of PSUs awarded depending on the relative stockholder return performance. The fair value of external-based metric PSUs has been estimated at the grant date using a Monte Carlo simulation that uses various assumptions.

The following table provides a summary of the assumptions for PSUs granted in 2023 and 2022:




	Nine Months Ended September 30,
	2023		2022
Expected volatility	44.66%		41.65%
Risk free interest rate	3.75%		1.36%
Expected term (in years)	2.91		2.91
Grant date fair value of units granted	$	119.33	$	122.69

The risk-free interest rate was based on zero-coupon United States Treasury bills at the grant date. The expected term represents the period from the grant date to the end of the three-year performance period.

PSU Summary

As of September 30, 2023, there was $21 million total unrecognized compensation cost related to PSUs. That cost is expected to be recognized over a weighted-average period of 1.75 years.

The following table summarizes the Company’s PSU activity:



	Number of PSUs	Weighted-Average Grant-Date Fair Value
Balance at December 31, 2022	303,716	$	91.47

Granted	164,128	101.76
Vested	(24,120)	76.58
Forfeited	(52,491)	94.94
Balance at September 30, 2023	391,233	$	95.80

Employee Stock Purchase Plan

The Owens Corning Employee Stock Purchase Plan (“ESPP”) is a tax-qualified plan under Section 423 of the Internal Revenue Code. The purchase price of shares purchased under the ESPP is equal to 85% of the lower of the fair market value of shares of Owens Corning common stock at the beginning or ending of the offering period, which is a six-month period ending on May 31 and November 30 of each year. On April 16, 2020, the Company’s stockholders approved the Amended and Restated Owens Corning Employee Stock Purchase Plan, which increased the number of shares available for issuance under the plan by 4.2 million shares. As of September 30, 2023, 3.4 million shares remain available for purchase.

Included in total stock-based compensation expense is $1 million and $5 million of expense related to the Company’s ESPP recognized during the three and nine months ended September 30, 2023, respectively. During the three and nine months ended September 30, 2022, the Company recognized expense of $1 million and $4 million, respectively, related to the Company’s ESPP. As of September 30, 2023, there was $1 million of total unrecognized compensation cost related to the ESPP.

Table of Contents

- 34 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

15. EARNINGS PER SHARE

The following table is a reconciliation of weighted-average shares for calculating basic and diluted earnings per share (in millions, except per share amounts):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Net earnings attributable to Owens Corning	$	337	$	470	$	1,065	$	1,117
Weighted-average number of shares outstanding used for basic earnings per share	90.0		96.3		90.6		97.8
Non-vested restricted stock units and performance share units	0.9		0.8		0.9		0.9

Weighted-average number of shares outstanding and common equivalent shares used for diluted earnings per share	90.9		97.1		91.5		98.7
Earnings per common share attributable to Owens Corning common stockholders:
Basic	$	3.74	$	4.88	$	11.75	$	11.42
Diluted	$	3.71	$	4.84	$	11.64	$	11.32

For the three and nine months ended September 30, 2023 and September 30, 2022, there were no non-vested RSUs or PSUs that had an anti-dilutive effect on earnings per share.

The Board of Directors approved two share repurchase programs in 2022 under which the Company is authorized to repurchase up to an aggregate of 20 million shares of the Company’s outstanding common stock (the “Repurchase Authorization”). The Repurchase Authorization enables the Company to repurchase shares through the open market, privately negotiated, or other transactions. The actual number of shares repurchased will depend on timing, market conditions and other factors and will be at the Company’s discretion. The Company repurchased 3.6 million shares of its common stock for $391 million, inclusive of applicable taxes, during the nine months ended September 30, 2023, under the Repurchase Authorization. As of September 30, 2023, 10.8 million shares remain available for repurchase under the Repurchase Authorization.

Table of Contents

- 35 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

16. INCOME TAXES

The following table provides the Income tax expense (in millions) and effective tax rate for the periods indicated:


	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Income tax expense	$	110		$	114		$	361		$	340
Effective tax rate	25		%	20		%	25		%	23		%

The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the three months ended September 30, 2023 is primarily due to U.S. state and local income tax expense, offset slightly by U.S. federal taxes on foreign earnings and U.S. federal income tax credits. The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the nine months ended September 30, 2023 is primarily due to U.S. state and local income tax expense and foreign rate differential.

On August 16, 2022, the U.S. government enacted the Inflation Reduction Act of 2022 (the “Inflation Reduction Act”) into law, which includes a new corporate alternative minimum tax and an excise tax of 1% on the fair market value of net stock repurchases. Both provisions are effective for years after December 31, 2022. The Company does not anticipate being subject to the corporate alternative minimum tax in 2023 and continues to evaluate the potential future impact of the Inflation Reduction Act on its financial position and results of operations.

The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the three months ended September 30, 2022 is primarily due to U.S. state and local income tax expense, non-taxable gain on acquisition, foreign rate differential and other discrete adjustments. The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the nine months ended September 30, 2022 is primarily due to U.S. state and local income tax expense, non-taxable gain on acquisition, U.S. federal taxes on foreign earnings, adjustments to valuation allowances against certain deferred tax assets, excess tax benefits related to stock compensation, and other discrete adjustments.

The Company continues to assert indefinite reinvestment in accordance with ASC 740 based on the laws as of enactment of the tax legislation.

Table of Contents

- 36 -

OWENS CORNING AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

(unaudited)

17. CHANGES IN ACCUMULATED OTHER COMPREHENSIVE DEFICIT

The following table summarizes the changes in accumulated other comprehensive income (deficit) (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,

	2023		2022		2023		2022
Currency Translation Adjustment
Beginning balance	$	(339)	$	(358)	$	(380)	$	(279)
Net investment hedge amounts classified into AOCI, net of tax	—		—		—		4




Loss on foreign currency translation	(73)		(160)		(32)		(243)
Other comprehensive loss, net of tax	(73)		(160)		(32)		(239)
Ending balance	$	(412)	$	(518)	$	(412)	$	(518)
Pension and Other Postretirement Adjustment
Beginning balance	$	(304)	$	(309)	$	(301)	$	(318)
Amounts reclassified from AOCI to net earnings, net of tax (a)	—		—		—		2
Amounts classified into AOCI, net of tax	2		6		(1)		13









Other comprehensive income (loss), net of tax	2		6		(1)		15
Ending balance	$	(302)	$	(303)	$	(302)	$	(303)
Hedging Adjustment
Beginning balance	$	6	$	39	$	—	$	16


Amounts reclassified from AOCI to net earnings, net of tax (b)	8		(16)		32		(35)
Amounts classified into AOCI, net of tax	(3)		22		(21)		64








Other comprehensive income, net of tax	5		6		11		29
Ending balance	$	11	$	45	$	11	$	45
Total AOCI ending balance	$	(703)	$	(776)	$	(703)	$	(776)

(a)These AOCI components are included in the computation of total Pension and Other postretirement expense and are recorded in Non-operating income. See Note 12 for additional information.

(b)Amounts reclassified from (loss) gain on cash flow hedges are reclassified from AOCI to income when the hedged item affects earnings and is recognized in Cost of sales or Interest expense, net depending on the hedged item. See Note 4 for additional information.

Table of Contents

- 37 -

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

This Management’s Discussion and Analysis (“MD&A”) is intended to help investors understand Owens Corning, our operations and our present business environment. MD&A is provided as a supplement to, and should be read in conjunction with, our Consolidated Financial Statements and the accompanying Notes thereto contained in this report. Unless the context requires otherwise, the terms “Owens Corning,” “Company,” “we” and “our” in this report refer to Owens Corning and its subsidiaries.

GENERAL

Owens Corning is a global building and construction materials leader committed to building a sustainable future through material innovation. The Company has three reporting segments: Composites, Insulation and Roofing. Through these lines of business, the Company manufactures and sells products worldwide. We maintain leading market positions in many of our major product categories.

EXECUTIVE OVERVIEW

Net earnings attributable to Owens Corning were $337 million in the third quarter of 2023, compared to $470 million in the same period of 2022. The Company generated $518 million in adjusted earnings before interest and taxes (“Adjusted EBIT”) for the third quarter of 2023, compared to $487 million in the same period of 2022. See the Adjusted Earnings Before Interest and Taxes paragraph of the MD&A for further information regarding Adjusted EBIT, including the reconciliation to net earnings attributable to Owens Corning. Third quarter of 2023 earnings before interest and taxes (“EBIT”) performance compared to the same period of 2022 increased $114 million in our Roofing segment, and decreased $46 million and $23 million in our Composites and Insulation segments, respectively. Within our Corporate, Other and Eliminations category, General corporate expense and other increased by $14 million.

Cash and cash equivalents were $1,323 million as of September 30, 2023, compared to $751 million as of September 30, 2022. In the nine months ended September 30, 2023, the Company’s operating activities provided $1,021 million of cash, compared to providing $1,085 million of cash in the same period in 2022.

In May 2023, the Company made the decision to exit the Protective Packaging business within the Roofing segment, including the production and sale of wood packaging, metal packaging and custom products. Exiting Protective Packaging will allow the Company to focus resources on the growth of its building materials products, which supports the future growth aspirations of the enterprise. With the exit of the Protective Packaging business, the Company will be closing its plants in Dorval, Quebec and Mission, British Columbia, Canada. The Company will also be significantly scaling back operations at its Novia facility in Qingdao, China. In connection with the exit of the Protective Packaging business, the Company estimates that it will incur cash charges of approximately $20 million, primarily related to severance and other exit costs. Additionally, the Company expects to incur total non-cash charges in the range of $65 to $75 million, primarily related to accelerated depreciation of property, plant and equipment and accelerated amortization of definite-lived intangibles. The Company expects to exit the majority of the business by the end of 2023 and expects to generate savings of approximately $7 million annually by 2024. During the first nine months of 2023, the Company recorded $61 million of charges, primarily related to accelerated depreciation, accelerated amortization and severance.

On March 3, 2023, the Company finalized the sale of its Insulation site in Santa Clara, California for total proceeds of $234 million, net of transaction fees. Total proceeds included a non-refundable deposit of $50 million received in the third quarter 2021. As a result, the Company recognized a pre-tax gain of $189 million in the first quarter of 2023, which is recorded in Gain on sale of site on the Consolidated Statements of Earnings.

Table of Contents

- 38 -

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

The Board of Directors approved two share repurchase programs in 2022 under which the Company is authorized to repurchase up to an aggregate of 20 million shares of the Company’s outstanding common stock (the “Repurchase Authorization”). The Repurchase Authorization enables the Company to repurchase shares through the open market, privately negotiated, or other transactions. The actual number of shares repurchased will depend on timing, market conditions and other factors and will be at the Company’s discretion. The Company repurchased 1.0 million shares of its common stock for $141 million, inclusive of applicable taxes, in the third quarter of 2023 under the Repurchase Authorization. As of September 30, 2023, 10.8 million shares remained available for repurchase under the Repurchase Authorization.

RESULTS OF OPERATIONS

Consolidated Results (in millions)


	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net sales	$	2,479		$	2,529		$	7,373		$	7,476
Gross margin	$	727		$	693		$	2,068		$	2,046
% of net sales	29		%	27		%	28		%	27		%
Marketing and administrative expenses	$	201		$	201		$	612		$	586

Gain on equity method investment	$	—		$	(130)		$	—		$	(130)
Gain on sale of site	$	—		—			$	(189)		$	—
Other expense (income), net	$	35		$	(12)		$	77		$	(18)
Earnings before interest and taxes	$	463		$	610		$	1,484		$	1,541
Interest expense, net	$	17		$	28		$	62		$	82

Income tax expense	$	110		$	114		$	361		$	340
Net earnings attributable to Owens Corning	$	337		$	470		$	1,065		$	1,117

The Consolidated Results discussion below provides a summary of our results and the trends affecting our business, and should be read in conjunction with the more detailed Segment Results discussion that follows.

NET SALES

In the third quarter and year-to-date 2023, net sales decreased $50 million and decreased $103 million, respectively, compared to the same periods in 2022. For the third quarter and year-to-date, the decrease in net sales was primarily driven by lower sales volumes in both the Insulation and Composites segments partially offset by higher selling prices.

GROSS MARGIN

In the third quarter and year-to-date 2023, gross margin increased $34 million and increased $22 million, respectively, compared to the same periods in 2022. For the third quarter, the increase was primarily driven by higher selling prices, lower input costs and favorable delivery offset by lower sales volumes and increased production downtime in both the Composites and Insulation segments. For year-to-date, the increase was primarily driven by higher selling prices across all three segments, offset by lower sales volumes, higher production downtime and unfavorable manufacturing costs. The unfavorable net impact of acquisitions and divestitures and higher input costs were slightly offset by favorable delivery.

MARKETING AND ADMINISTRATIVE EXPENSES

In the third quarter of 2023, marketing and administrative expenses were flat compared to the same period in 2022. For year-to-date 2023, marketing and administrative expenses increased $26 million compared to the same period in 2022, driven primarily by ongoing inflationary pressures throughout the organization as well as higher general corporate expenses.

Table of Contents

- 39 -

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

GAIN ON SALE OF SITE

In the first quarter of 2023, the Company finalized the sale of the Company’s Insulation site in Santa Clara, California resulting in the recognition of a pre-tax gain of $189 million.

OTHER EXPENSE (INCOME), NET

In the third quarter and year-to-date 2023, other expenses increased $47 million and increased $95 million, respectively, compared to the same periods in 2022. For the third quarter and year-to-date, the increase was driven primarily by higher restructuring costs, lower gains on the sale of certain precious metals, and the establishment of the estimated liability for the Paroc marine recall matter.

INTEREST EXPENSE, NET

In the third quarter and year-to-date 2023, interest expense, net, decreased $11 million and decreased $20 million, respectively, compared to the same periods in 2022, driven by higher interest income and capitalized interest.

INCOME TAX EXPENSE

Income tax expense for the three and nine months ended September 30, 2023 was $110 million and $361 million, respectively. For the third quarter of 2023 and the nine months ended September 30, 2023, the Company’s effective tax rate was 25%. The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the three months ended September 30, 2023 is primarily due to U.S. state and local income tax expense, offset slightly by U.S. federal taxes on foreign earnings and U.S. federal income tax credits. The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the nine months ended September 30, 2023 is primarily due to U.S. state and local income tax expense and foreign rate differential.

The realization of deferred tax assets depends on achieving a certain minimum level of future taxable income. Management currently believes that it is not reasonably possible that the minimum level of taxable income will be met within the next 12 months to reduce the valuation allowances of certain foreign jurisdictions.

Income tax expense for the three and nine months ended September 30, 2022 was $114 million and $340 million, respectively. For the third quarter of 2022, the Company's effective tax rate was 20% and for the nine months ended September 30, 2022, the Company's effective tax rate was 23%. The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the three months ended September 30, 2022 is primarily due to U.S. state and local income tax expense, non-taxable gain on acquisition, foreign rate differential and other discrete adjustments. The difference between the effective tax rate and the U.S. federal statutory tax rate of 21% for the nine months ended September 30, 2022 is primarily due to U.S. state and local income tax expense, non-taxable gain on acquisition, U.S. federal taxes on foreign earnings, adjustments to valuation allowances against certain deferred tax assets, excess tax benefits related to stock compensation, and other discrete adjustments.

Table of Contents

- 40 -

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

Restructuring, Acquisition and Divestiture-Related Costs

The Company has incurred restructuring, transaction and integration costs related to acquisitions and divestitures, along with restructuring and other exit costs in connection with its global cost reduction, productivity initiatives and growth strategy. These costs are recorded within Corporate, Other and Eliminations. Please refer to Note 10 of the Consolidated Financial Statements for further information on the nature of these costs.

The following table presents the impact and respective location of these income (expense) items on the Consolidated Statements of Earnings (in millions):


		Three Months Ended September 30,				Nine Months Ended September 30,
	Location	2023		2022		2023		2022
Restructuring costs	Cost of sales	$	(30)	$	(10)	$	(61)	$	(26)
Restructuring costs	Marketing and administrative expenses	—		—		(1)		—
Severance	Other expense (income), net	—		—		(25)		(1)
Other exit costs	Other expense (income), net	(11)		(2)		(19)		(2)

Gain on sale of Santa Clara, California site	Gain on sale of site	—		—		189		—
Acquisition and divestiture-related costs	Marketing and administrative expenses	—		(2)		—		(5)
Gain on sale of Shanghai, China facility	Other expense (income), net	—		—		—		27
Impairment loss on Chambery, France assets held for sale	Other expense (income), net	—		—		—		(29)
Gain on remeasurement of Fiberteq equity investment	Gain on equity method investment	—		130		—		130

Total restructuring, acquisition and divestiture-related (costs) gains		$	(41)	$	116	$	83	$	94

Table of Contents

- 41 -

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

Adjusted Earnings Before Interest and Taxes

Adjusted EBIT is a non-GAAP measure that excludes certain items that management does not allocate to our segment results because it believes they are not representative of the Company’s ongoing operations. Adjusted EBIT is used internally by the Company for various purposes, including reporting results of operations to the Board of Directors of the Company, analysis of performance and related employee compensation measures. Although management believes that these adjustments result in a measure that provides a useful representation of our operational performance, the adjusted measure should not be considered in isolation or as a substitute for Net earnings attributable to Owens Corning as prepared in accordance with accounting principles generally accepted in the United States.

Adjusting income (expense) items to EBIT are shown in the table below (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Restructuring costs	$	(41)	$	(12)	$	(106)	$	(29)
Gain on sale of Shanghai, China facility	—		—		—		27

Gain on sale of Santa Clara, California site	—		—		189		—
Gains on sale of certain precious metals	—		7		2		18


Gain on remeasurement of Fiberteq equity investment	—		130		—		130
Paroc marine recall	(14)		—		(14)		—
Acquisition and divestiture-related costs	—		(2)		—		(5)
Impairment loss on Chambery, France assets held for sale	—		—		—		(29)



Total adjusting items	$	(55)	$	123	$	71	$	112

The reconciliation from Net earnings attributable to Owens Corning to Adjusted EBIT is shown in the table below (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
NET EARNINGS ATTRIBUTABLE TO OWENS CORNING	$	337	$	470	$	1,065	$	1,117
Net (loss) earnings attributable to non-redeemable and redeemable noncontrolling interests	—		(1)		(2)		2

NET EARNINGS	337		469		1,063		1,119
Equity in net earnings of affiliates	1		1		2		—
Income tax expense	110		114		361		340
EARNINGS BEFORE TAXES	446		582		1,422		1,459
Interest expense, net	17		28		62		82

EARNINGS BEFORE INTEREST AND TAXES	463		610		1,484		1,541
Less: Adjusting items from above	(55)		123		71		112
ADJUSTED EBIT	$	518	$	487	$	1,413	$	1,429

Segment Results

EBIT by segment consists of net sales less related costs and expenses and is presented on a basis that is used internally for evaluating segment performance. Certain items, such as general corporate expenses or income and certain other expense or income items, are excluded from the internal evaluation of segment performance. Accordingly, these items are not reflected in EBIT for our reportable segments and are included in the Corporate, Other and Eliminations category, which is presented following the discussion of our reportable segments.

Table of Contents

- 42 -

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

Earnings before interest, taxes, depreciation and amortization (“EBITDA”) by segment is a non-GAAP measure that consists of EBIT plus depreciation and amortization. Segment EBITDA is used internally by the Company for analysis of performance.

Composites

The table below provides a summary of net sales, EBIT, depreciation and amortization expense and EBITDA for the Composites segment (in millions):


	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net sales	$	567		$	638		$	1,772		$	2,071
% change from prior year	-11		%	8		%	-14		%	20		%
EBIT	$	80		$	126		$	216		$	434
EBIT as a % of net sales	14		%	20		%	12		%	21		%
Depreciation and amortization expense	$	43		$	40		$	130		$	131
EBITDA	$	123		$	166		$	346		$	565
EBITDA as a % of net sales	22		%	26		%	20		%	27		%

NET SALES

In our Composites segment, net sales in the third quarter of 2023 decreased $71 million compared to the same period in 2022. The decrease was driven primarily by lower sales volumes of approximately 9%, unfavorable customer mix and $10 million of lower selling prices. The favorable impact of translating sales denominated in foreign currencies into United States dollars was partially offset by the net impact of divestitures and acquisitions.

For year-to-date 2023, net sales in our Composites segment decreased $299 million compared to the same period in 2022. The decrease was driven primarily by lower sales volumes of approximately 13%. Higher selling prices of $29 million were more than offset by the net impact of divestitures and acquisitions. The remaining variance was driven by unfavorable customer mix and the unfavorable impact of translating sales denominated in foreign currencies into United States dollars.

EBIT

In our Composites segment, EBIT in the third quarter of 2023 decreased $46 million compared to the same period in 2022. The decrease was driven by higher production downtime of $23 million, lower sales volumes, and unfavorable customer mix. The remaining variance was driven by favorable manufacturing costs and $10 million of favorable delivery which more than offset lower selling prices of $10 million.

For the year-to-date 2023, EBIT in our Composites segment decreased $218 million compared to the same period in 2022. The decrease was driven by lower sales volumes and $57 million of higher production downtime. Higher selling prices of $29 million and favorable delivery slightly offset input cost inflation of $44 million. The remaining variance was driven by the net unfavorable impact of divestitures and acquisitions of $35 million and unfavorable customer mix.

OUTLOOK

Global glass reinforcements market demand has several economic indicators including residential, non-residential construction and manufacturing production indices, as well as global wind installations. The Company anticipates continued impacts of economic uncertainty in a dynamic global environment, as well as competitive pricing pressure. The Company remains focused on managing costs, capital expenditures, and working capital.

Table of Contents

- 43 -

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

Insulation

The table below provides a summary of net sales, EBIT, depreciation and amortization expense and EBITDA for the Insulation segment (in millions):


	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net sales	$	913		$	965		$	2,737		$	2,758
% change from prior year	-5		%	18		%	-1		%	19		%
EBIT	$	150		$	173		$	469		$	459
EBIT as a % of net sales	16		%	18		%	17		%	17		%
Depreciation and amortization expense	$	51		$	52		$	159		$	156
EBITDA	$	201		$	225		$	628		$	615
EBITDA as a % of net sales	22		%	23		%	23		%	22		%

NET SALES

In our Insulation segment, net sales in the third quarter of 2023 decreased $52 million compared to the same period in 2022. The decrease was driven primarily by lower sales volumes of approximately 10% partially offset by higher selling prices of $35 million and the favorable impact of translating sales denominated in foreign currencies into United States dollars. Favorable product and customer mix more than offset $5 million from the unfavorable net impact of acquisitions and divestitures.

For year-to-date 2023, net sales in our Insulation segment decreased $21 million compared to the same period in 2022. The decrease was driven by lower sales volumes of approximately 11%, which more than offset higher selling prices of $220 million and favorable customer and product mix. The favorable net impact of acquisitions and divestitures more than offset $6 million of the unfavorable impact of translating sales denominated in foreign currencies into United States dollars.

EBIT

In our Insulation segment, EBIT in the third quarter of 2023 decreased $23 million compared to the same period in 2022. The decrease was driven by lower sales volumes which more than offset higher selling prices of $35 million. Higher manufacturing costs of $11 million and higher production downtime more than offset favorable delivery of $7 million and favorable customer and product mix.

For the year-to-date 2023, EBIT in our Insulation segment increased $10 million compared to the same period in 2022. Higher selling prices of $220 million more than offset lower sales volumes and $56 million of input cost inflation. Higher manufacturing costs of $34 million and higher production downtime were partially offset by favorable customer and product mix, as well as favorable delivery of $15 million.

OUTLOOK

The outlook for Insulation demand is driven by North American new residential construction and remodeling and repair activity, as well as commercial and industrial construction activity in the United States, Canada, Europe, Asia-Pacific and Latin America. Demand in commercial and industrial insulation markets is most closely correlated to industrial production growth and overall economic activity in the global markets we serve. Demand for residential insulation is most closely correlated to U.S. housing starts.

During the third quarter of 2023, the average Seasonally Adjusted Annual Rate (“SAAR”) of U.S. housing starts was approximately 1.359 million, down from an annual average of approximately 1.461 million starts in the third quarter of 2022.

Table of Contents

- 44 -

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

The Company expects both the North American new residential construction market and global commercial and industrial construction markets to remain soft temporarily with the weaker macro-economic outlook, higher interest rates and continued input cost inflation. The Company remains focused on managing costs, capital expenditures, and working capital.

Roofing

The table below provides a summary of net sales, EBIT, depreciation and amortization expense and EBITDA for the Roofing segment (in millions):


	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net sales	$	1,084		$	1,003		$	3,102		$	2,859
% change from prior year	8		%	15		%	8		%	14		%
EBIT	$	343		$	229		$	890		$	663
EBIT as a % of net sales	32		%	23		%	29		%	23		%
Depreciation and amortization expense	$	16		$	15		$	48		$	46
EBITDA	$	359		$	244		$	938		$	709
EBITDA as a % of net sales	33		%	24		%	30		%	25		%

NET SALES

In our Roofing segment, net sales in the third quarter of 2023 increased $81 million compared to the same period in 2022 due to higher sales volumes of 5% and higher selling prices of $21 million. Favorable product mix was partially offset by lower third-party asphalt sales of $19 million and unfavorable customer mix.

For year-to-date 2023, net sales in our Roofing segment increased $243 million compared to the same period in 2022. Higher selling prices of $147 million, higher sales volumes of 3% and favorable product mix were partially offset by lower third-party asphalt sales of $34 million and unfavorable customer mix.

EBIT

In our Roofing segment, EBIT in the third quarter of 2023 increased $114 million compared to the same period in 2022 due to lower input costs, including delivery, $21 million of higher selling prices and higher sales volumes. Favorable customer and product mix and $9 million of lower manufacturing costs more than offset higher selling, general and administrative expenses.

For year-to-date 2023, EBIT in our Roofing segment increased $227 million compared to the same period in 2022 driven primarily by higher selling prices of $147 million. The remaining improvement was driven about equally by higher sales volumes, lower input costs, favorable delivery, and favorable customer and product mix, which were partially offset by higher production costs of $23 million and higher selling, general and administrative expenses.

OUTLOOK

In our Roofing segment, the Company expects the North American new residential construction market to remain soft temporarily. Other uncertainties that may impact Roofing demand include demand from storms and other weather-related events, demand from repair and remodeling activity, competitive pricing pressure and the cost and availability of raw materials, particularly asphalt. The Company will continue to focus on managing costs, capital expenditures and working capital.

Table of Contents

- 45 -

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

Corporate, Other and Eliminations

The table below provides a summary of EBIT and depreciation and amortization expense for the Corporate, Other and Eliminations category (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Restructuring costs	$	(41)	$	(12)	$	(106)	$	(29)

Gain on sale of Shanghai, China facility	—		—		—		27
Gain on sale of Santa Clara, California site	—		—		189		—
Gains on sale of certain precious metals	—		7		2		18


Acquisition and divestiture-related costs	—		(2)		—		(5)
Impairment loss on Chambery, France assets held for sale	—		—		—		(29)
Gain on remeasurement of Fiberteq equity investment	—		130		—		130



Paroc marine recall	(14)		—		(14)		—
General corporate expense and other	(55)		(41)		(162)		(127)
EBIT	$	(110)	$	82	$	(91)	$	(15)
Depreciation and amortization	$	50	$	23	$	109	$	67

EBIT

In Corporate, Other and Eliminations, EBIT expenses for the third quarter of 2023 were higher by $192 million compared to the same period in 2022. For year-to-date 2023, EBIT expenses in Corporate, Other and Eliminations were higher by $76 million. Please reference the table above for information related to the significant quarter over quarter and year over year variances.

General corporate expense and other for the third quarter of 2023 were higher by $14 million compared to the same period in 2022. For year-to-date, general corporate expense and other were higher by $35 million compared to the same period in 2022.

OUTLOOK

In 2023, we estimate general corporate expenses to be in the range of $215 million and $225 million.

LIQUIDITY, CAPITAL RESOURCES AND OTHER RELATED MATTERS

Liquidity

The Company’s primary sources of liquidity are its balance of Cash and cash equivalents of $1.3 billion as of September 30, 2023, its Senior Revolving Credit Facility and its Receivables Securitization Facility (each as defined below).

The Company has an $800 million senior revolving credit facility (the “Senior Revolving Credit Facility”) that has been amended from time to time, which matures in July 2026.

The Company has a $280 million receivables securitization facility (the “Receivables Securitization Facility”) that has been amended from time to time, which matures in April 2024.

Table of Contents

- 46 -

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

The following table shows how the Company utilized its primary sources of liquidity (in millions):


	Balance at September 30, 2023
	Senior Revolving Credit Facility		Receivables Securitization Facility
Facility size or borrowing limit	$	800	$	280
Collateral capacity limitation on availability	N/A		—
Outstanding borrowings	—		—
Outstanding letters of credit	4		1
Availability on facility	$	796	$	279

The Receivables Securitization Facility and Senior Revolving Credit Facility mature in April 2024 and July 2026, respectively. The Company has no significant debt maturities of senior notes before the fourth quarter of 2024. As of September 30, 2023, the Company had $3.0 billion of total debt and cash and cash equivalents of $1.3 billion. The agreements governing our Senior Revolving Credit Facility and Receivables Securitization Facility contain various covenants that we believe are usual and customary. These covenants include a maximum allowed leverage ratio. We were in compliance with these covenants as of September 30, 2023.

In May 2023, the Senior Revolving Credit Facility was amended to formally adopt Term SOFR plus a spread as the benchmark reference rate in anticipation of the June 30, 2023 discontinuation of LIBOR.

Cash and cash equivalents held by foreign subsidiaries may be subject to foreign withholding taxes upon repatriation to the U.S. As of September 30, 2023, and December 31, 2022, the Company had $120 million and $188 million, respectively, in cash and cash equivalents in certain of our foreign subsidiaries. The Company continues to assert indefinite reinvestment in accordance with Accounting Standards Codification (“ASC”) 740 based on the laws as of enactment of the tax legislation.

As a holding company, we have no operations of our own and most of our assets are held by our direct and indirect subsidiaries. Dividends and other payments or distributions from our subsidiaries will be used to meet our debt service and other obligations and to enable us to pay dividends to our stockholders. Please refer to page 16 of the Risk Factors disclosed in Item 1A of the Company’s annual report on Form 10-K for the year ended December 31, 2022 (the “2022 Form 10-K”) for details on the factors that could inhibit our subsidiaries’ ability to pay dividends or make other distributions to the parent company.

Material Cash Requirements

Our anticipated uses of cash include capital expenditures, working capital needs, share repurchases, meeting financial obligations, payments of any dividends authorized by our Board of Directors, acquisitions, restructuring actions and pension contributions. We expect that our cash on hand, coupled with future cash flows from operations and other available sources of liquidity, including our Senior Revolving Credit Facility and our Receivables Securitization Facility, will provide ample liquidity to enable us to meet our cash requirements.

Please refer to Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, included in our 2022 Form 10-K for more details on these material cash requirements. During the third quarter of 2023, there have been no material changes to our expected uses of cash and contractual obligations.

Supplier Finance Programs

Table of Contents

- 47 -

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

by the suppliers’ decisions to sell, or otherwise pledge as collateral, amounts under these arrangements. The Company’s payment terms to the financial institutions, including the timing and amount of payments, are based on the original supplier invoices. One of the Programs includes a parent guarantee to the participating financial institution for a certain U.S. subsidiary that, at the time of the respective program’s inception in 2015, was a guarantor subsidiary of the Company’s Credit Agreement. The obligations are presented as Accounts payable within Total current liabilities on the Consolidated Balance Sheets and all activity related to the obligations is presented within operating activities on the Consolidated Statements of Cash Flow.

The desire of suppliers and financial institutions to participate in the Programs could be negatively impacted by, among other factors, the availability of capital committed by the participating financial institutions, the cost and availability of our suppliers’ capital, a credit rating downgrade or deteriorating financial performance of the Company or its participating subsidiaries, or other changes in financial markets beyond our control. We do not expect these risks, or potential long-term growth of our Programs, to materially affect our overall financial condition, as we expect a significant portion of our payments to continue to be made outside of the Programs. Accordingly, we do not believe the Programs have materially impacted our current period liquidity, and do not believe that the Programs are reasonably likely to materially affect liquidity in the future.

Please refer to the Supplier Finance Programs section in Note 1 of the Consolidated Financial Statements for a description of outstanding obligations and payments under the supplier finance programs.

Cash Flows

The following table presents a summary of our cash balance, cash flows, and availability on credit facilities (in millions):


	Nine Months Ended September 30,
		2023		2022
Cash and cash equivalents		$	1,323	$	751
Net cash flow provided by operating activities		1,021		1,085
Net cash flow used for investing activities		(219)		(573)
Net cash flow used for financing activities		(585)		(675)
Availability on the Senior Revolving Credit Facility		796		796
Availability on the Receivables Securitization Facility		279		279

Operating activities: For the nine months ended September 30, 2023, the Company’s operating activities provided $1,021 million of cash compared to $1,085 million provided in the same period of 2022. The decrease in cash provided by operating activities was primarily due to decreases in accounts payable partially offset by decreases to inventory when compared to the same period in 2022.

Investing activities: Net cash flow used for investing activities decreased by $354 million for the nine months ended September 30, 2023 compared to the same period in 2022. The decrease was primarily driven by lower spending on acquisitions and increased proceeds from the sale of assets for 2023 compared to the same period in 2022. These were partially offset by higher capital spending for 2023.

Financing activities: Net cash flow used for financing activities decreased by $90 million for the nine months ended September 30, 2023 compared to the same period of 2022, resulting from lower treasury stock purchases for the period which more than offset increased dividend payments.

Derivatives

Please refer to Note 4 of the Consolidated Financial Statements.

Fair Value Measurement

Please refer to Notes 4, 11, and 12 of the Consolidated Financial Statements.

Table of Contents

- 48 -

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

SAFETY

One of our primary objectives is the safety and well-being of our employees. Working safely is an unconditional, organization-wide expectation at Owens Corning, which we believe directly benefits employees’ lives, improves our manufacturing processes and reduces our costs. The Company maintains comprehensive safety programs focused on identifying hazards and eliminating risks that can lead to severe injuries. One of our primary safety measures is the Recordable Incident Rate (“RIR”) as defined by the United States Bureau of Labor Statistics. For the three months ended September 30, 2023, our RIR was 0.66, compared to 0.64 as reported in the same period a year ago. For the nine months ended September 30, 2023, our RIR was 0.65, compared to 0.72 as reported in the same period a year ago.

ACCOUNTING PRONOUNCEMENTS

Please refer to Note 1 of the Consolidated Financial Statements.

ENVIRONMENTAL MATTERS

Please refer to Note 13 of the Consolidated Financial Statements.

Table of Contents

- 49 -

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

CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

Our disclosures and analysis in this report, including Management’s Discussion and Analysis of Financial Condition and Results of Operations, contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 (the “Exchange Act”). Forward-looking statements present our current forecasts and estimates of future events. These statements do not strictly relate to historical or current results and can be identified by words such as “anticipate,” “appear,” “assume,” “believe,” “estimate,” “expect,” “forecast,” “intend,” “likely,” “may,” “plan,” “project,” “seek,” “should,” “strategy,” “will” and other terms of similar meaning or import in connection with any discussion of future operating, financial or other performance. These forward-looking statements are subject to risks, uncertainties and other factors and actual results may differ materially from those results projected in the statements. These risks, uncertainties and other factors include, without limitation:

•levels of residential and commercial or industrial construction activity;

•demand for our products;

•industry and economic conditions including, but not limited to, supply chain disruptions, recessionary conditions, inflationary pressures, interest rate and financial markets volatility, and the viability of banks and other financial institutions;

•availability and cost of energy and raw materials;

•levels of global industrial production;

•competitive and pricing factors;

•relationships with key customers and customer concentration in certain areas;

•issues related to acquisitions, divestitures and joint ventures or expansions;

•climate change, weather conditions and storm activity;

•legislation and related regulations or interpretations, in the United States or elsewhere;

•domestic and international economic and political conditions, policies or other governmental actions, as well as war and civil disturbance;

•changes to tariff, trade or investment policies or laws;

•uninsured losses, including those from natural disasters, catastrophes, pandemics, theft or sabotage;

•environmental, product-related or other legal and regulatory liabilities, proceedings or actions;

•research and development activities and intellectual property protection;

•issues involving implementation and protection of information technology systems;

•foreign exchange and commodity price fluctuations;

•our level of indebtedness;

•our liquidity and the availability and cost of credit;

•our ability to achieve expected synergies, cost reductions and/or productivity improvements;

•the level of fixed costs required to run our business;

•levels of goodwill or other indefinite-lived intangible assets;

•price volatility in certain wind energy markets in the U.S.;

•loss of key employees and labor disputes or shortages; and

•defined benefit plan funding obligations.

All forward-looking statements in this report should be considered in the context of the risks and other factors described herein, and in Item 1A - Risk Factors in Part I of our 2022 Form 10-K. Users of this report should not interpret the disclosure of any risk factor to imply that the risk has not already materialized. Any forward-looking statements speak only as of the date the statement is made and we undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by federal securities laws. It is not possible to identify all of the risks, uncertainties and other factors that may affect future results. In light of these risks and uncertainties, the forward-looking events and circumstances discussed in this report may not occur and actual results may differ materially from those anticipated or implied in the forward-looking statements. Accordingly, users of this report are cautioned not to place undue reliance on the forward-looking statements.

Table of Contents

- 50 -

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There has been no material change in our exposure to market risk during the nine months ended September 30, 2023. Please refer to “Quantitative and Qualitative Disclosures about Market Risk” contained in Part II, Item 7A of our 2022 Form 10-K for a discussion of our exposure to market risk.

ITEM 4. CONTROLS AND PROCEDURES

The Company maintains (a) disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), and (b) internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act).

The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures as of the end of the period covered by this report. Based on such evaluation, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that, as of the end of such period, the Company’s disclosure controls and procedures are effective.

There has been no change in the Company’s internal control over financial reporting during the quarter ended September 30, 2023 that materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

Table of Contents

- 51 -

PART II

ITEM 1. LEGAL PROCEEDINGS

Information required by this item is incorporated by reference to Note 13 of the Consolidated Financial Statements, Contingent Liabilities and Other Matters.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors disclosed in Item 1A of the Company’s 2022 Form 10-K.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES, USE OF PROCEEDS, AND ISSUER PURCHASES OF EQUITY SECURITIES

Recent Sales of Unregistered Securities; Use of Proceeds from Registered Securities.

None.

Issuer Purchases of Equity Securities

The following table provides information about Owens Corning’s purchases of its common stock for each month during the quarterly period covered by this report:


Period	Total Number of Shares (or Units) Purchased		Average Price Paid per Share (or Unit)		Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs**	Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs**
July 1-31, 2023	1,408		$	131.23	—	11,767,634
August 1-31, 2023	573,579		141.10		570,000	11,197,634
September 1-30, 2023	453,168		141.25		430,000	10,767,634
Total	1,028,155	*	$	141.15	1,000,000	10,767,634

* The Company retained an aggregate of 28,155 shares surrendered to satisfy tax withholding obligations in connection with the vesting of restricted share units granted to our employees.

** The Board of Directors approved two share repurchase programs in 2022 under which the Company is authorized to repurchase up to an aggregate of 20 million shares of the Company’s outstanding common stock (the “Repurchase Authorization”). The Repurchase Authorization enables the Company to repurchase shares through the open market, privately negotiated, or other transactions. The actual number of shares repurchased will depend on timing, market conditions and other factors and will be at the Company’s discretion. The Company repurchased 3.6 million shares of its common stock for $391 million, inclusive of applicable taxes, during the nine months ended September 30, 2023, under the Repurchase Authorization. As of September 30, 2023, 10.8 million shares remain available for repurchase under the Repurchase Authorization.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

10b5-1 Plans

On September 14, 2023, Marcio Sandri, the Company's President, Composites, entered into a written plan for the sale of 6,111 shares of Company common stock, intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934. This plan is scheduled to terminate no later than September 16, 2024.

Table of Contents

- 52 -

ITEM 6. EXHIBITS































10.1			Retirement Transition Agreement, dated as of August 4, 2023, by and between Owens Corning and Dan Smith (filed herewith).

10.2			Form of Owens Corning Restricted Stock Unit Award Agreement (filed herewith).

31.1			Certification of Chief Executive Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a) (filed herewith).

31.2			Certification of Chief Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a) (filed herewith).

32.1			Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350 (furnished herewith).

32.2			Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350 (furnished herewith).

101			The following materials from the Quarterly Report on Form 10-Q for Owens Corning for the period ended September 30, 2023, formatted in iXBRL (Inline Extensible Business Reporting Language): (i) Consolidated Statements of Earnings, (ii) Consolidated Statements of Comprehensive Earnings, (iii) Consolidated Balance Sheets, (iv) Consolidated Statements of Stockholders' Equity, (v) Consolidated Statements of Cash Flows, (vi) related notes to these financial statements and (vii) document and entity information.












104			The cover page from this Quarterly Report on Form 10-Q, formatted as Inline XBRL.

Owens Corning agrees to furnish to the U.S. Securities and Exchange Commission, upon request, copies of all instruments defining the rights of holders of long-term debt of Owens Corning where the total amount of securities authorized under each issue does not exceed 10% of the total assets of Owens Corning and its subsidiaries on a consolidated basis.

Table of Contents

- 53 -

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, Owens Corning has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

OWENS CORNING

Registrant

Date:

October 25, 2023

By:

/s/ Todd W. Fister

Todd W. Fister

Chief Financial Officer

Date:

October 25, 2023

By:

/s/ Mari K. Doerfler

Mari K. Doerfler

Vice President and

Controller