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CRITICAL MINERAL COMPANIES · RESEARCH

Copper companies & projects in Montana

Electrical grids, motors, wiring and industrial electrification. Explore 7 documented copper assets in Montana, their companies, source classifications and related regional opportunities.

7projects & facilities
6linked organizations
8mineral categories
1asset regions
7 assets
Alberta: 0 documented assetsBritish Columbia: 0 documented assetsManitoba: 0 documented assetsNew Brunswick: 0 documented assetsNewfoundland and Labrador: 0 documented assetsNova Scotia: 0 documented assetsNorthwest Territories: 0 documented assetsNunavut: 0 documented assetsOntario: 0 documented assetsPrince Edward Island: 0 documented assetsQuebec: 0 documented assetsSaskatchewan: 0 documented assetsYukon: 0 documented assetsAlaska: 0 documented assetsAlabama: 0 documented assetsArkansas: 0 documented assetsArizona: 0 documented assetsCalifornia: 0 documented assetsColorado: 0 documented assetsConnecticut: 0 documented assetsDistrict of Columbia: 0 documented assetsDelaware: 0 documented assetsFlorida: 0 documented assetsGeorgia: 0 documented assetsHawaii: 0 documented assetsIowa: 0 documented assetsIdaho: 0 documented assetsIllinois: 0 documented assetsIndiana: 0 documented assetsKansas: 0 documented assetsKentucky: 0 documented assetsLouisiana: 0 documented assetsMassachusetts: 0 documented assetsMaryland: 0 documented assetsMaine: 0 documented assetsMichigan: 0 documented assetsMinnesota: 0 documented assetsMissouri: 0 documented assetsMississippi: 0 documented assetsMontana: 7 documented assets7Montana: 7 assetsNorth Carolina: 0 documented assetsNorth Dakota: 0 documented assetsNebraska: 0 documented assetsNew Hampshire: 0 documented assetsNew Jersey: 0 documented assetsNew Mexico: 0 documented assetsNevada: 0 documented assetsNew York: 0 documented assetsOhio: 0 documented assetsOklahoma: 0 documented assetsOregon: 0 documented assetsPennsylvania: 0 documented assetsRhode Island: 0 documented assetsSouth Carolina: 0 documented assetsSouth Dakota: 0 documented assetsTennessee: 0 documented assetsTexas: 0 documented assetsUtah: 0 documented assetsVirginia: 0 documented assetsVermont: 0 documented assetsWashington: 0 documented assetsWisconsin: 0 documented assetsWest Virginia: 0 documented assetsWyoming: 0 documented assetsCANADAUNITED STATES

Asset counts by province / state · select a region

Natural Earth · NRCan / USGS

Canada’s mapped coordinates come from NRCan’s 2025 inventory. U.S. assets are mapped by state using USGS’s June 2026 release. Asset counts describe directory coverage.

MINERAL EXPOSURE

Montana at a glance

Copper7 assets
Nickel5 assets
Platinum group metals5 assets
Selenium4 assets
Tellurium4 assets
Cobalt1 assets
Molybdenum1 assets
Silver1 assets

SUPPLY-CHAIN ACTIVITIES

Where assets fit

Mines & production sites3
Exploration & development2
Recycling & recovery2

One asset can report several minerals. An organization may participate in multiple assets. Activity grouping describes the source record, and does not confirm current production, commercial availability or investment readiness.

GLOBAL SUPPLY CONTEXT · 2025 ESTIMATES

Copper: production & import dependence

23 million metric tonsEstimated world production
Chile · 23%Leading producer / global share
57%U.S. net import reliance

Production and import figures follow the commodity definitions in the source table. USGS Mineral Commodity Summaries 2026, Table 7 ↗. These global estimates are separate from this directory’s asset counts.

THE ASSET INVENTORY

Projects, mines & facilities

Filter the directory ↗
Project / facilityMineralsRegionSource classification
Black Butte Mine ↗Sandfire Resources Ltd.CopperMontanaUnited StatesMines and QuarriesIn development · 2026-06-29
Columbus Metallurgical Refinery ↗Sibanye Stillwater Ltd.Copper · Nickel · Platinum group metals · SeleniumMontanaUnited StatesRefineryAssumed active · 2026-06-29
Columbus Metallurgical Smelter ↗Sibanye Stillwater Ltd.Copper · Nickel · Platinum group metals · SeleniumMontanaUnited StatesSmelterAssumed active · 2026-06-29
Continental Mine ↗Montana Resources LLPCopper · Molybdenum · SilverMontanaUnited StatesMineAssumed active · 2026-06-29
East Boulder Mine ↗Sibanye Stillwater Ltd.Copper · Nickel · Platinum group metals · SeleniumMontanaUnited StatesMineAssumed active · 2026-06-29
Stillwater Mine ↗Sibanye Stillwater Ltd.Copper · Nickel · Platinum group metals · SeleniumMontanaUnited StatesMineAssumed active · 2026-06-29
Stillwater West ↗Stillwater Critical MineralsNickel · Copper · Cobalt · Platinum group metalsMontanaUnited StatesExplorationSee company disclosures · 2026-09-10

CORPORATE FOOTPRINT

Companies & operators

6 linked organizations
INDUSTRY ORGANIZATION

Montana Resources ↗

Copper · Molybdenum · Silver

1 assets in this viewProfile ↗
INDUSTRY ORGANIZATION

Montana Resources LLP ↗

Copper · Molybdenum · Silver

1 assets in this viewProfile ↗
INDUSTRY ORGANIZATION

Sandfire Resources Ltd. ↗

Copper

1 assets in this viewProfile ↗
INDUSTRY ORGANIZATION

Sibanye Stillwater Ltd. ↗

Copper · Nickel · Platinum group metals · Selenium · Silver

4 assets in this viewProfile ↗
TSXV: PGE

Stillwater Critical Minerals ↗

Cobalt · Copper · Nickel · Platinum group metals

1 assets in this viewProfile ↗
INDUSTRY ORGANIZATION

The Washington Companies ↗

Copper · Molybdenum · Silver

1 assets in this viewProfile ↗

CONTINUE YOUR RESEARCH

Mineral sectors in Montana

Nickel · 5 ↗Platinum group metals · 5 ↗Silver · 4 ↗Tellurium · 4 ↗Selenium · 4 ↗

Research sources

Each asset profile includes its source references and dates. Read the coverage, data licences and review methodology ↗.