Tokyo Grain Exchange - http://www.tge.or.jp/index.html Main contracts: azuki red beans, corn, raw sugar, US soyabean, arabica and robusta coffee.
The London Metal Exchange Limited - http://www.lme.com/ Exchange for non-ferrous base metals. Main contracts include aluminium, copper, nickel, tin, and zinc.
Australian Macadamia Xchange - http://www.amxchange.com.au/ Internet exchange registered users can buy and sell macadamia kernel both within Australia and internationally.