On December 15, 2023, the Board of Directors of Alcoa Corporation appointed Mr. Matthew Reed to serve as the Company?s Executive Vice President and Chief Operations Officer, effective on January 1, 2024. Mr. Reed, 51, has served as the Company?s Vice President of Operations, Australia and President, Alcoa of Australia since June 2023. Previously, Mr. Reed was the Operations Executive (Chief Operating Officer) of OZ Minerals Limited, an international mining company based in South Australia (?OZ Minerals?), with responsibility for operating assets and brownfield projects, from September 2021 through May 2023.

Prior to that, Mr. Reed was General Manager, Projects at OZ Minerals from January 2021 through August 2021. Mr. Reed was the Executive Managing Director (Chief Operating Officer) at SIMEC Mining, a mining company based in South Australia, from September 2017 through December 2020.