Stillwater Mining Company Base Metals Refinery

What they make

Where it is

Other plants nearby

Every listed plant in Stillwater County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in ICIS · EPA site type STATIONARY.

• OSHA injury and illness reportsOPERATING
  Record 1498886 · first seen DEC 2025 · last seen DEC 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110002053090 · first seen MAR 2013 · last seen MAR 2013

ALSO RECORDED ASBASE METALS REFINERY

IN STILLWATER COUNTY5 other plants share this one’s industry (Nonferrous Metal (except Aluminum) Production and Processing, NAICS 3314); 0 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: BASE METALS REFINERY · JUL 2026

Street address

EPA: 1730 EAST 1ST AVENUE SOUTH · JUL 2026

City

EPA: COLUMBUS · JUL 2026

State

EPA: MT · JUL 2026

County (FIPS code)

EPA: 30095 · SEP 2026

Coordinates

EPA: 45.633338,-109.239731 · JUL 2026

Employees (band)

OSHA: 20-99 · DEC 2025