Company: CENX
Filing Date: 2025-04-25
Form Type: DEF 14A
Source: 0001552781-25-000153
Chunk: 66

Company: CENTURY ALUMINUM CO
Filing Date: 2025-04-25
Form: DEF 14A
Chunk 66
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 Award. (ii) “ Performance Stock Unit” means an Award under Article 9 and subject to the terms of this Plan, denominated in units (and no Shares are actually awarded to the Participant on the Grant Date), the value of which at the time it is payable is determined as a function of the extent to which corresponding performance criteria or Performance Measure(s), as applicable, have been achieved. (jj) “ Period of Restriction” means the period when Restricted Stock or Restricted Stock Units are subject to a substantial risk of forfeiture (based on the passage of time, the achievement of performance goals, or the occurrence of other events as determined by the Committee, in its discretion). (kk) “ Person” shall have the meaning ascribed to such term in Section 3(a)(9) of the Exchange Act and used in Sections 13(d) and 14(d) thereof, including a “group” as defined in Section 13(d) thereof. (ll) “ Plan” means this Century Aluminum Company 2025 Incentive Plan, as amended from time to time. (mm) “ Plan Year” means a twelve-month period beginning with January 1 of each year; provided, however, that the initial plan year shall begin on the Effective Date and end on December 31 of the year in which the Effective Date occurs.

| 2025            
 Proxy Statement | A-5 |

(nn) “ Qualifying Termination” means a termination of a Participant’s employment by the Company or a Subsidiary without Cause or a termination of employment for Good Reason, in either case as determined under the definition of Cause or Good Reason set forth in the applicable Award Agreement, provided that, in the absence of such definitions in the applicable Award Agreement, the determination of whether a Participant’s employment was terminated for Cause or for Good Reason shall be made based upon the terms of an Other Agreement or Executive Severance Plan as applicable to the Participant which define termination for “Cause” or “Good Reason” (or words of similar meaning). (oo) “ Restricted Stock” means an Award under Article 8 and subject to the terms of this Plan, denominated in fully paid Shares. (pp) “ Restricted Stock Unit” means an Award under Article 8, and subject to the terms of this Plan denominated in units (and no Shares are actually awarded to the Participant on the Grant Date). (qq) “ Retirement” shall have the meaning set forth in the applicable Award Agreement and, in the absence of such definition in the