Tantalite.
Mineral ore like tantalite ore, molybdenum ore, wolframite ore, lead ore and copper.
Perlite, diatomite, barite, celestite..
Tantalite and coltan.
Coltan.
Barrite (API spec.) ore & powder, brown granite blocks and blue marble blocks.
Minerals, tantalite ores.
Cassiterite ore, coltan one.
Coltan, Cassiterite.
Iron Ore, Copper. Rhodium .
Minerals-bulk form such as talc lumps, copper ore.Transportation, forwarding
Coltan.
Lead and antimony, zinc and mercury.
Magnetite, ilmenite.
Vanadium, titanium, and coltan.Export
Tantalum, niobium, columbite, coltan.Trade
Coltan and tantalum.Import & export
Cassiterite, coltan.
Tantalite, coltan, galena.Exporter
Coltan.