As a result of the incidents, and as a safety precaution, one of Laterriere Works' two production lines has been suspended. The smelter is currently operating at half of its total capacity of 235,000 tonnes. The cause of the incidents and the overall impact on Laterriere Works is under investigation. In the coming weeks, Rio Tinto Alcan will mobilise the necessary resources to restore the suspended line. About Rio Tinto Rio Tinto is a leading international mining group headquartered in the UK, combining Rio Tinto plc, a London and NYSE listed company, and Rio Tinto Limited, which is listed on the Australian Securities Exchange. Rio Tinto's business is finding, mining, and processing mineral resources. Major products are aluminium, copper, diamonds, energy (coal and uranium), gold, industrial minerals (borax, titanium dioxide, salt, talc) and iron ore.