- Falconbridge Limited
 - Toronto - Fully integrated and diversified base metals mining company. Produces primary nickel, cobalt, and copper. - Noranda
- Toronto - Producers of zinc and nickel, as well as copper, primary and fabricated aluminum, lead, sulphuric acid, cobalt, and precious metals.
- Boliden Limited
- Toronto - Mining and metals company with integrated exploration, mining, smelting, and manufacturing operations.
- Caledonia Mining Corporation
- Oakville
- Diadem Resources Ltd.
- Toronto - Mineral exploration and development company with projects in a number of countries. Products include diamonds, silver, base metals, and gold.
- Tiomin Resources Inc.
- Toronto - Pursuing the development of its five major titanium mineral sand deposits in Kenya.
- Inter-Citic Mineral Technologies Inc.
- Toronto - Originally formed to exploit certain mining interests in Canada and now developing mineral recovery equipment.
- Franco-Nevada Mining Corporation Ltd.
- Toronto
- WMC Marketing
- Toronto - Offers cobalt availability and prices.
- Platinova
- Toronto - Exploring Greenland for diamonds, zinc, and other precious metals.
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