Owens Corning

7. PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following:

Machinery and equipment include certain precious metals used in our production tooling, which comprise approximately 4% of total machinery and equipment as of September 30, 2025 and December 31, 2024. Precious metals used in our production tooling are depleted as they are consumed during the production process, depletion expense is included in Cost of Sales on the Company's Consolidated Statements of Earnings.

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 inno gains for the three months ended September 30, 2025 and gains of $10 million for the nine months ended September 30, 2025. These gains are included in Other expense, net on the Consolidated Statements of 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 three and nine months ended September 30, 2025, these non-cash exchanges resulted in a net increase to Machinery and equipment of $14 million and $25 million, as well as gains totaling $14 million and $25 million, respectively. These gains are included in Other expense, net on the Consolidated Statements of Earnings and are reflected in the Corporate, Other and Eliminations reporting category.

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 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.