Coltan
Metal steel and other raw materials like copper ore, mill scale
Metallurgical coke, nickel oxide ore, manganese ore, coal
Copper ore concentrate & cathode, silver ore
Coltan
Tantalite (27% of TA2o5)
Tantalite
Sulphur, iron ore, magnese ore, rice
Calcite , dolomite, talc, barytechinacly
Manganese ore, perlite ore
Scrap metal & tin ore
High alumina cement, machineres, calcined bauxite, dead burnt magnesite, fused magnesite
Barite, bentonite.
Zirconium sand, copper ore, cobalt ore
Bauxite and ore
Bauxite, bentonite
Ilmenite, bauxite
Antimony ore, lead ore, scheelite ore
Tantalite
High carbon ferro manganese, chrome ore, mill scale and DRI