Company: CENX
Filing Date: 2025-04-25
Form Type: DEF 14A
Source: 0001552781-25-000153
Chunk: 96

Company: CENTURY ALUMINUM CO
Filing Date: 2025-04-25
Form: DEF 14A
Chunk 96
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 authorize each of them
to represent and vote, as designated on the reverse side of this ballot, all of the shares of common stock of Century Aluminum Company
that the stockholders are entitled to vote at the Annual Meeting of Stockholders to be held at 8:30 a.m., Central Time on June 16, 2025,
at Hyatt Place Chicago, 28 North Franklin Street, Chicago, Illinois 60606, and any adjournments or postponements thereof. THIS PROXY CARD,
WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY THE UNDERSIGNED. IF NO DIRECTION IS MADE BUT THE CARD IS SIGNED,
THIS PROXY CARD WILL BE VOTED FOR THE ELECTION OF THE NOMINEES UNDER PROPOSAL 1, FOR PROPOSAL 2, FOR PROPOSAL 3 AND FOR PROPOSAL 4, AND
IN THE DISCRETION OF THE PROXIES WITH RESPECT TO SUCH OTHER BUSINESS AS MAY PROPERLY COME BEFORE THE MEETING. Continued and to be signed
on reverse side