Rio Tinto Alcan Inc. is a Canadian company based in Montreal. It was created on November 15, 2007 as the result of the merger between Rio Tinto PLC's Canadian subsidiary, Rio Tinto Canada Holding Inc., and Canadian company Alcan Inc. On the same date, Alcan Inc. was renamed Rio Tinto Alcan Inc..Rio Tinto Alcan Inc. is the global leader of aluminium mining and production, above its one time parent Alcoa (from which it split in 1928), Rusal and some Chinese public companies.