Employer with a benefit plan ยท SEC filer
CENTURY ALUMINUM COMPANY
1 SOUTH WACKER DRIVE, SUITE 1000, CHICAGO, IL 60606
EIN
13-3070826
SEC CIK
0000949157
SEC · 2026-08-07
Industry (SIC)
Primary Production of Aluminum (3334)
SEC · 2026-08-07
State of incorporation
DE
SEC · 2026-08-07
Ticker
CENX
SEC · 2026-08-07
Latest SEC filing
SCHEDULE 13G 2026-08-07
SEC · 2026-08-07
Benefit plan 4, 2024 filing
CENTURY ALUMINUM 401(K) PLAN
DOL · 2025-10-13
Participants (start of year)
1,957
DOL · 2025-10-13
Plan features
code 2E2F2H2J2K2S2T3D3H
DOL · 2025-10-13
Plan type
Single-employer plan
DOL · 2025-10-13
Business code (NAICS)
331310
DOL · 2025-10-13
Benefit plan 5, 2024 filing
CENTURY ALUMINUM CONSOLIDATED RETIREMENT PLAN
DOL · 2025-10-13
Participants (start of year)
1,848
DOL · 2025-10-13
Plan features
code 1A1B3H
DOL · 2025-10-13
Plan type
Single-employer plan
DOL · 2025-10-13