The Norwegian state energy company, Statkraft, has attempted to impose an extremely exploitative contract on construction workers involved in the ‘Los Lagos’ hydroelectric project in Chile. The workers of SINACIN union are fighting back. Meanwhile, comrades from the IMT have led efforts to build international solidarity for the workers, whose struggle has found a sympathetic echo in the Norwegian labour movement. We provide a report here by comrades of the IMT in Chile and Norway.