Mastermelt America LLC
319 Industrial Park Rd, Sweetwater, TN 37874
Operating signal within 12 months from two or more independent sources.
What they make
Nonferrous Metal (except Aluminum) Smelting and Refining331410Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ngk Metals Corporation | Sweetwater | Copper Rolling, Drawing, Extruding, and Alloying 331420 | ACTIVE | 2.9 KM |
| Acupowder Tn LLC | Greenback | Copper Rolling, Drawing, Extruding, and Alloying 331423 | UNVERIFIED | 27.6 KM |
| Arcelormittal Laplace LLC | Harriman | Iron and Steel Mills and Ferroalloy Manufacturing 331110 | LIKELY ACTIVE | 34.9 KM |
| Horsehead CORP | Rockwood | Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) 331492 | LIKELY ACTIVE | 36.2 KM |
| Befesa Zinc US INC. | Rockwood | Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) 331492 | UNVERIFIED | 36.7 KM |
Also at this address
1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.
WHERE THIS RECORD COMES FROM — 4 FEDERAL SOURCES, 7 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
EPA cross-references this facility in AIR, AIRS/AFS, EIS, EPS, NPDES, OSHA-OIS, RCRAINFO, TRIS · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA ECHO | OPERATING | JUL 2026 | JUL 2026 |
| EPA FRS | EXISTENCE | MAR 2026 | MAR 2026 |
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
| EPA TRI | OPERATING | DEC 2023 | DEC 2023 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| CITY | EPA FRS | JUL 2026 |
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| RCRA GENERATOR STATUS | EPA ECHO | SEP 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.