Primary Metal Manufacturing in Michigan
NAICS 331 · MI
This register lists 535 facilities in Michigan. The Bureau of Labor Statistics counted 384 establishments in the Primary Metal Manufacturing industry in Michigan in 2025. Howmet Aerospace Whitehall Operations - Whitehall Castings Plant 1 and 3, located in Whitehall, employed 1,240 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Michigan9 FACILITIES
Listing 9 of 13: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Howmet Corporation | Whitehall | — | ACTIVE |
| Howmet Corporation, Plant 4 | Whitehall | — | LIKELY ACTIVE |
| Howmet Corporation, Plants 1 & 3 | Whitehall | — | LIKELY ACTIVE |
| Howmet Castings Plant 10 | Whitehall | — | LIKELY ACTIVE |
| Howmet Research Center | Whitehall | — | LIKELY ACTIVE |
| Howmet Corporation, Hrc and Plants 5 & 10 | Whitehall | — | UNVERIFIED |
| Howmet Aerospace Whitehall Operations - HRC Complex | Whitehall | 100–499 | LIKELY ACTIVE |
| Howmet Aerospace Whitehall Operations - Plant 5 | Whitehall | 100–499 | LIKELY ACTIVE |
| Howmet Aerospace Whitehall Operations - Whitehall Casting Plant 10 | Whitehall | 20–99 | LIKELY ACTIVE |
All primary metal manufacturing nationwide · All manufacturing in Michigan