- Peniel Resources Limited
- iron ore,coltan,columbite,coal,tantalite,gypsum,metallic ores,bentonite,barrite,cassiterite,charcoal,ginger,shea nut,hibiscus,bituminous coal.
- Address:15 Scampston Drive, East Ardsley
- Minerals Exchange Ltd
- Tungsten Ore, Colombo-tantalite, Tantalite, Comolombite / Niobite, Tungsten ore, Wolframite, Sheelite, Niobium Ore, Tantalum Ore, Wolframite,Coltan/Ta2O5 - Cassiterite/SnO2 - Wolframite/WO3.
- Address:95 Wilton Road, Suite 3
- Minlinks Trade
- Cassiterite, Wolframite, Coltan.
- Address:483 Green Lanes London N13 4BS United Kingdom
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