CRITICAL MINERAL COMPANIES · RESEARCH

Antimony companies & projects in Idaho

Flame retardants, lead alloys and specialty materials. Explore 4 documented antimony assets in Idaho, their companies, source classifications and related regional opportunities.

4projects & facilities

3linked organizations

4mineral categories

1asset regions

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

Idaho at a glance

SUPPLY-CHAIN ACTIVITIES

Where assets fit

Exploration & development3

Mines & production sites1

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

110,000 metric tonsEstimated world production

China · 36%Leading producer / global share

91%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 / facility	Minerals	Region	Source classification
Galena Complex ↗Americas Gold and Silver Corp.	Antimony · Copper · Lead · Silver	IdahoUnited States	MineAssumed active · 2026-06-29
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

CORPORATE FOOTPRINT

Companies & operators

3 linked organizations

INDUSTRY ORGANIZATION

Americas Gold and Silver Corp. ↗

Antimony · Copper · Lead · Silver

1 assets in this viewProfile ↗

INDUSTRY ORGANIZATION

Perpetua Resources Corp. ↗

Antimony · Silver

1 assets in this viewProfile ↗

INDUSTRY ORGANIZATION

Sunshine Silver Mining & Refining Corp. ↗

Antimony · Copper · Lead · Silver

2 assets in this viewProfile ↗

CONTINUE YOUR RESEARCH

Mineral sectors in Idaho

Silver · 13 ↗Phosphate · 7 ↗Copper · 6 ↗Lead · 6 ↗Zinc · 4 ↗

Research sources

U.S. Geological Survey — U.S. facilities, June 2026 ↗Inventory: 2026-06-29 · Checked 2026-09-10

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