- SPIRAL SIGHT BUSINESS SOLUTION Limited
- copper ore, tanzanites, rubi, amathest, garnet.
- Address:PLOT 263,Ngweze street,Rukwa MPANDA, RUKWA
- Stonetown
- Gemstones,Garnets,Sapphires,Tanzanites,Ruby,Gemstones.
- Address:8 / 45 Kijitoinyama, MAKUMBUSHO
- SD Mine Company Limited
- copper ore, tanzanites, rubi, amathest, garnet.
- Address:PLOT 263,Ngweze street,Rukwa MPANDA RUKWA 255 Tanzania
- Agn Gems Ltd
- GEM STONES---Tanzanites.
- Address:Mkwepu Street Block No 206/24 1st floor Arusha Arusha 6016 Tanzania
- Yaraha Investments Ltd
- gold bars, gold nuggets, copper ore, copper cathode, tanzanites and diamonds..
- Address:Mnambo Street,Mbezi Beach, Block H, Plot 505,, Dar Es Salaam, dar es salaam, Tanzania
- Tuckman Mines And Minerals (t) Ltd
- cut tanzanites.
- Address:goliondoi road, arusha, Tanzania
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