Owens Corning

Property, plant and equipment consist of the following:

Machinery and equipment includes certain precious metals used in our production tooling, which comprise approximately 3% and 4% of total machinery and equipment as of March 31, 2026 and December 31, 2025, respectively.

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 $2 million and $9 million for the three months ended March 31, 2026 and March 31, 2025, 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. 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 months ended March 31, 2026, these non-cash exchanges resulted in a net increase to Machinery and equipment of $10 million and a gain of $10 million. There wereno significant non-cash exchanges during the three months ended March 31, 2025. These gains are included in Other expense, net on the Consolidated Statements of 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.