Item 3. Quantitative and Qualitative Disclosures About Market Risk.

There have been no material changes in our market risks during the three-month period ended March 31, 2025. For additional information on market risks, refer to “Disclosures About Market Risks” included in Part II, Items 7. and 7A. of our 2024 Form 10-K. For projected sensitivities of our operating cash flow to changes in commodity prices, refer to “Outlook” in Part I, Item 2. of this quarterly report on Form 10-Q; for projected sensitivities of our provisionally priced copper sales to changes in commodity prices refer to “Consolidated Results – Revenues” in Part I, Item 2. of this quarterly report on Form 10-Q.

Item 4.Controls and Procedures.

(a)Evaluation of disclosure controls and procedures. Our chief executive officer and chief financial officer, with the participation of management, have evaluated the effectiveness of our “disclosure controls and procedures” (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) as of the end of the period covered by this quarterly report on Form 10-Q. Based on their evaluation, they have concluded that our disclosure controls and procedures were effective as of March 31, 2025.

(b)Changes in internal control over financial reporting. There has been no change in our internal control over financial reporting that occurred during the quarter ended March 31, 2025, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Part II.OTHER INFORMATION

Item 1.Legal Proceedings.

We are involved in numerous legal proceedings that arise in the ordinary course of our business or are associated with environmental issues. We are also involved periodically in reviews, inquiries, investigations and other proceedings initiated by or involving government agencies, some of which may result in adverse judgments, settlements, fines, penalties, injunctions or other relief.

Management does not believe, based on currently available information, that the outcome of any legal proceeding reported in Part I, Item 3. “Legal Proceedings” and Note 10 of our 2024 Form 10-K, as updated by Note 7 herein, will have a material adverse effect on our financial condition; although individual or cumulative outcomes could be material to our operating results for a particular period, depending on the nature and magnitude of the outcome and the operating results for the period.

There have been no material changes to legal proceedings previously disclosed in Part I, Item 3. “Legal Proceedings” and Note 10 of our 2024 Form 10-K.