Nonmetallic Mineral Product Manufacturing in Guam
NAICS 327 · GU
The register lists 6 facilities in Guam’s Nonmetallic Mineral Product Manufacturing industry as of 2026.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Guam6 FACILITIES
| Facility | City | Employees | Status |
|---|---|---|---|
| Hawaiian Rock Products-guam | Mangilao | — | UNVERIFIED |
| Core Tech Concrete, LLC | Tamuning | — | LIKELY ACTIVE |
| Rocky Mountain Precast LLC | Yigo | — | LIKELY ACTIVE |
| Glass Concepts, LLC | Tamuning | — | UNVERIFIED |
| Hawaiian Rock Products | Sinajana | — | UNVERIFIED |
| Rocky Mountain Precast, LLC | Yigo | — | UNVERIFIED |
All nonmetallic mineral product manufacturing nationwide · All manufacturing in Guam