CRITICAL MINERAL COMPANIES · RESEARCH
Missouri critical mineral companies & projects
Research 15 documented projects and facilities in Missouri, United States. Explore mineral exposure, source-reported activity, operators and company connections.
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
Missouri 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 |
|---|---|---|---|
| Brushy Creek Mine ↗The Doe Run Co. | Copper · Lead · Silver · Zinc | MissouriUnited States | MineAssumed active · 2026-06-29 |
| Buick Mill ↗The Doe Run Co. | Copper · Lead · Silver · Zinc | MissouriUnited States | MineAssumed active · 2026-06-29 |
| Buick Mine ↗The Doe Run Co. | Copper · Lead · Zinc | MissouriUnited States | MineAssumed active · 2026-06-29 |
| Buick Resource Recycling Facility ↗The Doe Run Co. | Lead | MissouriUnited States | Smelter, RefineryAssumed active · 2026-06-29 |
| Carondelet Plant ↗ICL Group Ltd. | Phosphate | MissouriUnited States | Mineral Processing PlantAssumed active · 2026-06-29 |
| Fletcher Mine ↗The Doe Run Co. | Copper · Lead · Silver · Zinc | MissouriUnited States | MineAssumed active · 2026-06-29 |
| Forest City Facility ↗Edison Group Cos. LLC | Lead | MissouriUnited States | RefineryAssumed active · 2026-06-29 |
| Madison Mine ↗U.S. Strategic Metals, LLC | Cobalt · Copper · Nickel | MissouriUnited States | MineIn development · 2026-06-29 |
| New Madrid ↗Magnitude 7 Metals LLC | Aluminum | MissouriUnited States | SmelterCare and maintenance · 2026-06-29 |
| St. Louis HF plant ↗Solvay S.A. | Fluorspar | MissouriUnited States | Mineral Processing PlantAssumed active · 2026-06-29 |
| St. Louis Plant ↗U.S. Strategic Metals, LLC | Cobalt · Copper · Lithium · Nickel | MissouriUnited States | RefineryAssumed active · 2026-06-29 |
| St. Louis Refinery ↗Hauser & Miller Co. | Platinum group metals · Silver | MissouriUnited States | RefineryInactive · 2026-06-29 |
| Sweetwater Mine ↗The Doe Run Co. | Copper · Lead · Silver · Zinc | MissouriUnited States | MineAssumed active · 2026-06-29 |
| Viburnum Mine #29 ↗The Doe Run Co. | Copper · Lead · Silver · Zinc | MissouriUnited States | MineAssumed active · 2026-06-29 |
| Viburnum Mine #35 (Casteel Mine) ↗The Doe Run Co. | Copper · Lead · Silver · Zinc | MissouriUnited States | MineAssumed active · 2026-06-29 |
CORPORATE FOOTPRINT
Companies & operators
Edison Group Cos. LLC ↗
Lead
Hauser & Miller Co. ↗
Platinum group metals · Silver
ICL Group Ltd. ↗
Phosphate
Magnitude 7 Metals LLC ↗
Aluminum
Solvay S.A. ↗
Fluorspar
The Doe Run Co. ↗
Copper · Lead · Silver · Zinc
The Renco Group, Inc. ↗
Copper · Lead · Lithium · Magnesium · Silver
U.S. Strategic Metals, LLC ↗
Cobalt · Copper · Lithium · Nickel
CONTINUE YOUR RESEARCH
Mineral sectors in Missouri
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 ↗.