Primary Metal Manufacturing in Washington
NAICS 331 · WA
Washington is home to Primary Metal Manufacturing, an industry with a location quotient of 0.57 according to the Bureau of Labor Statistics in 2024. Listed in the register are 140 facilities in 49 cities across Washington. Kaiser Aluminum - Trentwood in Spokane Valley had 899 employees in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Washington5 FACILITIES
| Facility | City | Employees | Status |
|---|---|---|---|
| Kaiser Aluminum and Chemical CO | Richland | — | LIKELY ACTIVE |
| US Doe Hanford Ust Site | Richland | — | LIKELY ACTIVE |
| International Hearth Melting LLC | Richland | — | UNVERIFIED |
| ATI - Richland Operation | Richland | 100–499 | LIKELY ACTIVE |
| Kaiser Aluminum Richland | Richland | 20–99 | LIKELY ACTIVE |
All primary metal manufacturing nationwide · All manufacturing in Washington