Metallic elements traded :-

Tin

As Cassiterite 50-75% Sn

Tin ingots

Crude tin ingots 95-99.75%

Solder

detinning residue

Tungsten

Wolframite

Scheelite

APT

Yellow and blue Tunsten Oxide

Tungsten Metal powder

Tungsten bar

Heavy metal scrap 

Tantalum

Tantalite Coltan

Tantalum Oxide

Tantalum metal ingot

Niobium

Pyroclore

Columbite

Niobium oxide

Niobium ingot

Cobalt

Heterogenite

Alliage Blanc

Cobalt Oxide

Cobalt Metal

Vanadium

Spent catalysts

Zircon Sand

Molybdenum

Copper

Zinc

NIckel

Zirconium