- Jambolink
- coltan ore, copper ore, tantalum, lead ore.
- Address:Mbagala Dar, Dar es salaam
- TRANSPACK T (1995)LTD
- Wolframite,Tungsten Ore,Tin Ore,Cassiterite,Tantalum Ore.
- Address:Bandari Road
- Jambolinks
- coltan ore, copper ore, tantalum, lead ore.
- Address:Mbagala Dar Dar es salaam Tanzania
- Dar Es Salaam Metal Exchange
- tantalum, lead, tin, copper, titanium, cobalt.
- Address:samora avenue, dar es salaam, Other, Tanzania
- Kasulu Trading Co Ltd
- gold, copper, tin.cobalt, zinc, tantalum.
- Address:ubena road,plot no 191 block b dar es salaam temeke 255 Tanzania
- Victoria General Trading Company Ltd
- ores, minerals, copper, alluvial gold, tin, coltan, tantalum, cathodes, rough diamonds.
- Address:Msasani Beach St.Kawe Rd. Hse No.3174 NJG Biz Complex, Dar es salaam, Other, Tanzania
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