Coltan.Import & export, trade
Coltan (columbite-tantalite) and niobium, Ta205, Nb205.
Tantalum-or-coltan.
Coltan, and mineral.
Tantalite or cassiterite.
Copper, bauxite, brass, bronze, scraps, aluminum, collagen, zinc, tin, tantalite, lead oxide, kaolin.
Brazil hancrafted products, sugar (icumsa 45, 600 1200, 150, 800 1600, beet sugar, green coffee beans, beans, soybean (non gmo), palm oils, frozen chicken cuts, precious gems (paraiba tourmaline, ...), diesel, minerral commodities (coltan,..).
