London Metal Exchange (LME) is the only recognized international metal futures exchange at present.
There are commodities certified by London Metal Exchange (LME) and these with the same HS codes, including aluminum (7601), aluminum alloy (7601), copper (7402, 7403, 7405, 7408), lead (7801), nickel (7502), tin (8001), zinc (7901), cobalt 8105), molybdenum (2613), billet (7207).