CRITICAL MINERAL COMPANIES · RESEARCH
Germanium companies, projects & facilities
Fiber optics, infrared optics and semiconductor applications. Research 8 documented germanium 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
Germanium 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.
THE ASSET INVENTORY
Projects, mines & facilities
| Project / facility | Minerals | Region | Source classification |
|---|---|---|---|
| Clarksville Smelter ↗Korea Zinc Company, Ltd. | Antimony · Bismuth · Cadmium · Copper | TennesseeUnited States | RefineryAssumed active · 2026-06-29 |
| East Tennessee Mines (Young, Coy, Immel) ↗Korea Zinc Company, Ltd. | Cadmium · Copper · Germanium · Zinc | TennesseeUnited States | MineAssumed active · 2026-06-29 |
| Middle Tennessee Mines (Gordonsville and Cumberland) ↗Korea Zinc Company, Ltd. | Cadmium · Copper · Germanium · Zinc | TennesseeUnited States | MineCare and maintenance · 2026-06-29 |
| Quapaw Ge Facility ↗Umicore Optical Materials USA | Germanium | OklahomaUnited States | RefineryAssumed active · 2026-06-29 |
| Red Dog Mine ↗Teck Resources Limited | Germanium · Lead · Silver · Zinc | AlaskaUnited States | MineAssumed active · 2026-06-29 |
| Santa Ana Refinery ↗Gemini Industries Inc. | Germanium · Platinum group metals · Rhenium | CaliforniaUnited States | RefineryInactive · 2026-06-29 |
| St. George Facility ↗5N Plus Inc. | Germanium | UtahUnited States | RefineryAssumed active · 2026-06-29 |
| Trail ↗Teck Resources Limited | Bismuth · Cadmium · Germanium · Indium | British ColumbiaCanada | Smelter, refinery, plantActive · 2025-12-31 |
CORPORATE FOOTPRINT
Companies & operators
5N Plus Inc. ↗
Boron · Cadmium · Germanium · Lithium · Tellurium
Gemini Industries Inc. ↗
Germanium · Platinum group metals · Rhenium
Korea Zinc Company, Ltd. ↗
Antimony · Bismuth · Cadmium · Copper · Gallium
Private entity (generic) ↗
Antimony · Bismuth · Cadmium · Copper · Gallium
Teck Resources Limited ↗
Bismuth · Cadmium · Cobalt · Copper · Germanium
Umicore ↗
Germanium
Umicore Optical Materials USA ↗
Germanium
U.S. Government ↗
Antimony · Bismuth · Cadmium · Copper · Gallium
CONTINUE YOUR RESEARCH
Germanium by region
Research sources
- U.S. Geological Survey — U.S. facilities, June 2026 ↗Inventory: 2026-06-29 · Checked 2026-09-10
- Natural Resources Canada — critical minerals inventory ↗Inventory: 2025-12-31 · Checked 2026-09-10
Each asset profile includes its source references and dates. Read the coverage, data licences and review methodology ↗.