Owens Corning

7. PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following:

Machinery and equipment includes certain precious metals used in our production tooling, which comprise approximately 4% of total machinery and equipment as of each of December 31, 2025 and December 31, 2024.

Our production tooling needs are changing due to the announced sale of our GR business. As a result, the Company sold certain precious metals resulting in gains of $15 million and $19 million for the twelve months ended December 31, 2025 and December 31, 2024, respectively. There wereno significant sales of precious metals resulting in gains or losses during the twelve months ended December 31, 2023. These gains are included in Other expense, net on the Consolidated Statements of (Loss) Earnings and are reflected in the Corporate, Other and Eliminations reporting category. The cash proceeds from the sales are included in Net cash flow used for investing activities in the Consolidated Statements of Cash Flow.

We also exchanged certain precious metals used in production tooling for certain other precious metals to be used in production tooling. During the twelve months ended December 31, 2025, these non-cash exchanges resulted in a net increase to Machinery and equipment of $30 million and a gain of $30 million. There wereno significant non-cash exchanges during the twelve months ended December 31, 2024 and December 31, 2023. These gains are included in Other expense, net on the Consolidated Statements of (Loss) Earnings and reflected in the Corporate, Other and Eliminations reporting category. These non-cash investing activities are not included in Net cash flow used by investing activities in the Consolidated Statements of Cash Flows. We do not expect these non-cash exchanges to materially impact our current or future capital expenditure requirements or rate of depletion.

During the third quarter of 2025, the Company determined that a certain asset group within our Doors reportable segment should be tested for recoverability, primarily as a result of the goodwill triggering event for our Doors reporting unit. Recoverability of the long-lived assets including definite-lived intangibles was measured by comparing the carrying amount of the asset group to the future net undiscounted cash flows expected to be generated by the asset group. This comparison determined that the asset group was recoverable. None of the assumptions were deemed to be significant. During the fourth quarter of 2025, the Company concluded no further testing was required given the significant cushion from the third quarter recoverability test.

For the years ended December 31, 2025, 2024 and 2023, depreciation expense was $503 million, $413 million and $394 million, respectively, which includes depletion expense related to precious metals used in our production tooling. In 2025, 2024 and 2023, depreciation expense included $37 million, $13 million and $76 million, respectively, of accelerated depreciation related to restructuring actions further explained in Note 13 to the Consolidated Financial Statements.