- Pl Mining
- Columbite, Tin, ore.
- Address:154 Airport Road Bosaso, Bari Regio
- World Mineral Broker
- iobium, cooper, cassiterite, columbite..
- Address:Av Augusto de Lima 1376 suite 908, Belo Horizonte, Minas Gerais, Brazil,30190-003
- Reifarsmineral
- tantalite, tin, columbite, cassiterite.
- Address:Av Bukavu no 95, Goma (RD Congo), BP 279 San Francisco,
- Aishat Bargain Price ltd
- tin ore, tourmaline gem stones, tantalite, columbite, niobium, ta2o5.
- Address:Nigeria
- Asurah & Sons Company Linited
- tatanlite ore & columbite, ore.
- Address:20 Mago line Bubuashie Accra, Accra Regio
- Conner Resource
- Bismuth,chromite,`Columbite,cassiterite,Lead.
- Address:Sariyu Ibada
- STA International Limited
- Quartz,Imperial Topaz,Columbite,Tourmaline,Alexandrite,Gemstones, Steel Raw Material, .
- Address:Rua Bambui, 539
- Profax Ventures Inc
- coal from colombia and columbite.
- Address:357 Lake str. suite 401, newark, new jersey, USA
- K Solutions
- tantalite, columbite, coltan, tungsten.
- Address:Plot 9, Lake Drive, Portbell Kampala Uganda
- HIGHLANDIRON
- Columbite, Tantalite, Zinc, Tin.
- Address:15833 W 11 Mile Rd
- Star Loyal (HK) Investment Limited
- Ta products,Nb products,tantalite,columbite,industrial pumps.
- Address:Room 1103, Hangseng Mongkok Building 677 Nathan Road Mongkok, Kowloon
- Birkama Gemstone Co., Ltd.
- Lead Ore, Copper Ore, Tantalum Ore, Gemstones,Columbite / Tantalite Ore.
- Address:Shop 8, 1 / F. , Top Jade Mansion, 608 Canton Road, Kowloon.
- White Solder
- Tantalum, Niobium (Columbite) and Tin Ingots..
- Address:Rua Peru, 1752
- Prosper Mineiracao Comercio Importacao E Exportacao Ltda
- minor metals, ore, tantalite, columbite.
- Address:Republica do Libano,61. Rio de Janeiro Rio de Janeiro 20061030 Brazil
- dasumylis nig limited
- Minning, processing and exportation of various mineral resources like TIN, TANTALITE, COLUMBITE ETC, agricultural products..
- Address:No 31 Delekolajolu Street Off Ago Palace Way, Okota Isolo
- 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
- Marcassa Comercial Ltda
- ore of manganese, copper, tantalite, columbite, coltan, titanium, tantalum, niobium.
- Address:pedro paulo conceicao Qd M Lt 22 814 cs 04, Lauro de freitas, Bahia, Brazil
- Ghrahams Oil and Chemicals Ltd
- Tantalite, Cashew nut, Tin, Columbite.
- Address:suite 11 and 12,Nikem Building Apata. Ibadan Oyo State 234 Nigeria
- Kenturkey Trades Company
- lead/zinc, iron ore, columbite, mica.
- Address:fwahvweh road,rayfield ,Jos Jos Plateau state Nigeria
- Gemvest Ltd
- Copper ore,Tantalite,Columbite,Scheelite,Wolframite.
- Address:12, Ilesha road