YOU CHOSE ... 'The Mineracao Rio do Norte S.A. (MRN)' operates Bauxite mines in the Brazilian rainforest in Porto Trombetas. The company was created in 1967 and began production in 1979. Aluminum is made from bauxite. CONTINUE MRN COMPOSITION 40% ALUVALE - BRAZIL 14.80% BILLITON - BRITISH 12% ALCAN - CANADIAN 10% CBA - BRAZIL 8.58% ALCOA - USA 5% HYDRO - NORWEGIAN 4.62% ABALCO - USA