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Stillwater Mining Company Base Metals Refinery

1730 East 1st Avenue South, Columbus, MT 59019

LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 2 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

Nonferrous Metal (except Aluminum) Smelting and Refining331410

Where it is

45.63334, -109.23973 · CENSUS TIGER
COUNTY
METRO AREA
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Other plants nearby

FacilityCityIndustryStatusDistance
Stillwater Mining CompanyColumbusNonferrous Metal (except Aluminum) Smelting and Refining
331419
UNVERIFIED0.2 KM
Stillwater Mining CO SmelterColumbusNonferrous Metal (except Aluminum) Smelting and Refining
331410
UNVERIFIED0.3 KM
Smc Precious Metals Smelter & Base Metal RefyColumbusNonferrous Metal (except Aluminum) Smelting and Refining
331410
UNVERIFIED0.3 KM
Columbus Processing FacilityColumbusNonferrous Metal (except Aluminum) Smelting and Refining
331419
UNVERIFIED0.6 KM
Stillwater Mining CO SmelterColumbusNonferrous Metal (except Aluminum) Smelting and Refining
331410
LIKELY ACTIVE5.8 KM

Every listed plant in Stillwater County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 6 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 ICIS · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
OSHA ITAOPERATINGDEC 2025DEC 2025
EPA FRSEXISTENCEMAR 2013MAR 2013
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1EPA FRSJUL 2026
CITYEPA FRSJUL 2026
EMPLOYEE BANDOSHA ITADEC 2025
GEOMEPA FRSJUL 2026
NAMEEPA FRSJUL 2026
STATEEPA FRSJUL 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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