Crude oil & coltan .
Nickel ore, concentrates, recycled ni, ferro nickel recycled.
Columbite, tantalite, cassiterite, scheelite.
Iron ore, copper ore, ore titanium, manganese ore. Tantalite, cassiterite, galena, beryl.CIF & FOB
Emerald, ruby, turmaline and others stones, also tantalite and niobium.