The main varieties listed and traded in Shanghai Futures Exchange are copper, aluminum, zinc, lead, rebar, wire rod, hot-rolled coil, natural rubber, gold, silver, fuel oil, petroleum asphalt, tin, nickel, pulp, stainless steel, soda ash, low-sulfur fuel oil, No.20 glue, international copper and crude oil futures, and copper, aluminum and zinc are also listed on the basis of futures contracts.