CRITICAL MINERAL COMPANIES · RESEARCH
Antimony companies, projects & facilities
Flame retardants, lead alloys and specialty materials. Research 10 documented antimony assets in Canada and the United States, their regions and the organizations behind them.
Asset counts by province / state · select a region
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
Antimony at a glance
SUPPLY-CHAIN ACTIVITIES
Where assets fit
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
Antimony: production & import dependence
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
| Project / facility | Minerals | Region | Source classification |
|---|---|---|---|
| Beaver Brook ↗Hunan Nonferrous Metals Corporation Limited | Antimony | Newfoundland and LabradorCanada | Past producerOn hold / suspended · 2025-12-31 |
| Clarksville Smelter ↗Korea Zinc Company, Ltd. | Antimony · Bismuth · Cadmium · Copper | TennesseeUnited States | RefineryAssumed active · 2026-06-29 |
| Eagle ↗Spartan Metals | Tungsten · Antimony | NevadaUnited States | ExplorationSee company disclosures · 2026-09-10 |
| Galena Complex ↗Americas Gold and Silver Corp. | Antimony · Copper · Lead · Silver | IdahoUnited States | MineAssumed active · 2026-06-29 |
| Limousine Butte ↗NevGold | Antimony | NevadaUnited States | ExplorationSee company disclosures · 2026-09-10 |
| New Polaris ↗Canagold Resources Ltd. | Antimony · Silver | British ColumbiaCanada | Advanced projectActive · 2025-12-31 |
| Stibnite Mines ↗Perpetua Resources Corp. | Antimony · Silver | IdahoUnited States | MineIn development · 2026-06-29 |
| Sunshine Antimony Plant ↗Sunshine Silver Mining & Refining Corp. | Antimony | IdahoUnited States | RefineryIn development · 2026-06-29 |
| Sunshine Mine ↗Sunshine Silver Mining & Refining Corp. | Antimony · Copper · Lead · Silver | IdahoUnited States | MineIn development · 2026-06-29 |
| Thompson Falls Smelter ↗United States Antimony Corporation | Antimony · Silver | MontanaUnited States | Refinery / SmelterAssumed active · 2026-06-29 |
CORPORATE FOOTPRINT
Companies & operators
Americas Gold and Silver Corp. ↗
Antimony · Copper · Lead · Silver
Canagold Resources Ltd. ↗
Antimony · Silver
Hunan Nonferrous Metals Corporation Limited ↗
Antimony
Korea Zinc Company, Ltd. ↗
Antimony · Bismuth · Cadmium · Copper · Gallium
NevGold ↗
Antimony
Perpetua Resources Corp. ↗
Antimony · Silver
Private entity (generic) ↗
Antimony · Bismuth · Cadmium · Copper · Gallium
Spartan Metals ↗
Antimony · Tungsten
Sunshine Silver Mining & Refining Corp. ↗
Antimony · Copper · Lead · Silver
United States Antimony Corporation ↗
Antimony · Silver
U.S. Government ↗
Antimony · Bismuth · Cadmium · Copper · Gallium
CONTINUE YOUR RESEARCH
Antimony by region
Research sources
- Natural Resources Canada — critical minerals inventory ↗Inventory: 2025-12-31 · Checked 2026-09-10
- U.S. Geological Survey — U.S. facilities, June 2026 ↗Inventory: 2026-06-29 · Checked 2026-09-10
- Spartan Metals — official company information ↗Checked 2026-09-10
- Spartan Metals — project information ↗Checked 2026-09-10
- Spartan Metals — official company information ↗Checked 2026-09-10
- Spartan Metals — official company information ↗Checked 2026-09-10
- NevGold — official company information ↗Checked 2026-09-10
- NevGold — project information ↗Checked 2026-09-10
Each asset profile includes its source references and dates. Read the coverage, data licences and review methodology ↗.