# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-25-057845
Filing Date
2025-06-09
Accepted
2025-06-09 16:24:36
Documents
7

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | tm2517542d1_defa14a.htm | DEFA14A | 16981
2 | GRAPHIC | tm2517542d1_def14aimg001.jpg | GRAPHIC | 276588
3 | GRAPHIC | tm2517542d1_def14aimg002.jpg | GRAPHIC | 361962
4 | GRAPHIC | tm2517542d1_def14aimg003.jpg | GRAPHIC | 215621
5 | GRAPHIC | tm2517542d1_def14aimg004.jpg | GRAPHIC | 335203
6 | GRAPHIC | tm2517542d1_def14aimg005.jpg | GRAPHIC | 422417
7 | GRAPHIC | tm2517542d1_def14aimg006.jpg | GRAPHIC | 179829
| Complete submission text file | 0001104659-25-057845.txt |  | 2486651

Mailing Address 1 SOUTH WACKER DRIVE SUITE 1000 CHICAGO IL 60606
Business Address 1 SOUTH WACKER DRIVE SUITE 1000 CHICAGO IL 60606 3126963101
CENTURY ALUMINUM CO (Filer) CIK: 0000949157 (see all company filings)

EIN.: 133070826 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-34474 | Film No.: 251034429
SIC: 3334 Primary Production of Aluminum
(CF Office: 04 Manufacturing)