Howmet Aerospace Inc

(a) Evaluation of Disclosure Controls and Procedures

Howmet’s Chief Executive Officer and Chief Financial Officer have evaluated the Company’s disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as of the end of the period covered by this report, and they have concluded that these controls and procedures are effective.

(b) Management’s Annual Report on Internal Control over Financial Reporting

Management’s Report on Internal Control over Financial Reporting is included in Part II, Item 8 of this Form 10-K beginning on page 38.

(c) Attestation Report of the Registered Public Accounting Firm

The effectiveness of Howmet’s internal control over financial reporting as of December 31, 2024 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report, which is included in Part II, Item 8 of this Form 10-K on page 39.

(d) Changes in Internal Control over Financial Reporting

There have been no changes in internal control over financial reporting during the fourth quarter of 2024, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.