CRITICAL MINERAL COMPANIES · RESEARCH
Copper companies & projects in Ontario
Electrical grids, motors, wiring and industrial electrification. Explore 26 documented copper assets in Ontario, their companies, source classifications and related regional opportunities.
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
Ontario 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
Copper: 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 |
|---|---|---|---|
| Coleman ↗Vale S.A. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Copper Cliff Complex ↗Vale S.A. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Copper Cliff Complex ↗Vale S.A. | Copper · Nickel · Platinum group metals · Selenium | OntarioCanada | Smelter, refinery, plantActive · 2025-12-31 |
| Crean Hill ↗Magna Mining | Nickel · Copper · Platinum group metals | OntarioCanada | Restart planningSee company disclosures · 2026-09-10 |
| Creighton ↗Vale S.A. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Eagle's Nest ↗Wyloo Pty Ltd | Copper · Nickel · Platinum group metals | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Fraser ↗Glencore Canada Corporation | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Garson ↗Vale S.A. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Kenbridge ↗Tartisan Nickel Corp. | Cobalt · Copper · Nickel | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Kidd Creek ↗Glencore Canada Corporation | Copper · Indium · Selenium · Silver | OntarioCanada | MineActive · 2025-12-31 |
| Lac des Iles ↗Impala Canada Ltd. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Marathon ↗Generation Mining Limited | Copper · Platinum group metals · Silver | OntarioCanada | Advanced projectActive · 2025-12-31 |
| McCreedy West ↗Magna Mining | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Nickel Rim South ↗Glencore Canada Corporation | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | Past producerOn hold / suspended · 2025-12-31 |
| Onaping Depth ↗Glencore Canada Corporation | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | Advanced projectActive · 2025-12-31 |
| River Valley ↗New Age Metals Inc. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Shakespeare ↗Magna Mining | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Shaw Dome ↗EV Nickel Inc. | Chromium · Cobalt · Copper · Nickel | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Stobie ↗Vale S.A. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Sudbury ↗Glencore Canada Corporation | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | Smelter, plantActive · 2025-12-31 |
| Superior Lake ↗Frontier Energy Limited | Copper · Silver · Zinc | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Thierry ↗XXIX Metal Corp. | Copper · Nickel · Platinum group metals · Silver | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Thunder Bay North ↗Clean Air Metals Inc. | Copper · Nickel · Platinum group metals · Silver | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Totten ↗Vale S.A. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | MineActive · 2025-12-31 |
| Upper Beaver ↗Agnico Eagle Mines Limited | Copper | OntarioCanada | Advanced projectActive · 2025-12-31 |
| Victoria ↗KGHM Polska Miedź S.A. | Cobalt · Copper · Nickel · Platinum group metals | OntarioCanada | Advanced projectActive · 2025-12-31 |
CORPORATE FOOTPRINT
Companies & operators
Agnico Eagle Mines Limited ↗
Copper · Silver · Zinc
Clean Air Metals Inc. ↗
Copper · Nickel · Platinum group metals · Silver
EV Nickel Inc. ↗
Chromium · Cobalt · Copper · Nickel · Platinum group metals
Frontier Energy Limited ↗
Copper · Silver · Zinc
Generation Mining Limited ↗
Copper · Platinum group metals · Silver
Glencore Canada Corporation ↗
Cadmium · Cobalt · Copper · Indium · Lead
Impala Canada Ltd. ↗
Cobalt · Copper · Nickel · Platinum group metals
KGHM Polska Miedź S.A. ↗
Cobalt · Copper · Molybdenum · Nickel · Platinum group metals
Magna Mining ↗
Cobalt · Copper · Nickel · Platinum group metals · Silver
New Age Metals Inc. ↗
Cobalt · Copper · Nickel · Platinum group metals
Tartisan Nickel Corp. ↗
Cobalt · Copper · Nickel
Vale S.A. ↗
Cobalt · Copper · Nickel · Platinum group metals · Selenium
CONTINUE YOUR RESEARCH
Mineral sectors in Ontario
Research sources
- Natural Resources Canada — critical minerals inventory ↗Inventory: 2025-12-31 · Checked 2026-09-10
- Magna Mining — official company information ↗Checked 2026-09-10
- Magna Mining — project information ↗Checked 2026-09-10
- Magna Mining — official company information ↗Checked 2026-09-10
- Magna Mining — official company information ↗Checked 2026-09-10
Each asset profile includes its source references and dates. Read the coverage, data licences and review methodology ↗.