Rio Tinto Initiates Lockout in CanadaJan 13, 2012 | News Rio Tinto Alcan, an aluminium-production unit of Anglo-Australian mining giant Rio Tinto, locked out about 800 union workers at a Quebec smelter. See http://online.wsj.com/article/SB10001424052970203550304577136533843111036.html. Related posts Justice for Rio Tinto workers in Canada Canadian Rio Tinto lockout nears one month Rio Tinto in Colombia