This video from the USA says about itself:
The WSWS spoke with Rio Tinto miners participating in a rally in Boron, California on February 24. Some 570 Borax mine workers have been locked out for four weeks after the union failed to reach an agreement with the company on a concessions contract.
See also here.
Four Rio Tinto staff go on trial in Shanghai: here.
Labor Struggle in Boron: Union Workers in CA Town Locked Out by Mining Giant Rio Tinto After Stalled Contract Talks: here.
Australia: Construction, mining, maritime and metal workers rallied outside the Sheraton Hotel on March 23 while chief executive of mining giant Rio Tinto Iron Ore, Sam Walsh, hosted a business breakfast for Rio bosses: here.