- Atlantech Sa
- coal, carbon, tantale, mineral.
- Address:Av circunvalar # 82 - 30 Bogota, Cundinamarca
- Praxit
- Gold, coal, steam coal, carbon, minerals.
- Address:Cl 76 Cr 43 Barranquilla Atlantico 00001 Colombia
- World Trading Colombia C.I. Ltd.
- CARBON, COAL, TYPE B.
- Address:Cra. 49 No. 124-54 Of. 204 Bogota Distrito Especial 000 Colombia
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