This video from Canada says about itself:
Vale Inco strikers and supporters in Sudbury, Ontario speak
26 May 2010
3,300 nickel miners, smelter and mill workers have been on strike in Sudbury and Port Colborne, Ontario for over ten months against the concession demands of Brazilian based transnational mining giant Vale Inco.
The bitter dispute between the United Steelworkers (USW) and the Brazilian multinational mining corporation Vale Inco has entered its 10th month: here.
See also here.
RIO DE JANEIRO, Apr 24, 2012 (IPS) – Social movements from several countries accused Brazil’s Vale, the world’s second largest mining company, of causing serious environmental and social damage, as well as the deaths of 15 workers in labour accidents between 2010 and 2012: here.