Miners in Chile, the world's largest copper producer and second largest lithium producer, said on Wednesday an indefinite strike by truckers threatened supplies to operations in the north of the country. Caravans of truckers protesting over issues such as high fuel prices and the need for better security have been striking since Monday when they set up roadblocks in the mining regions of Tarapaca and Antofagasta. In a statement on Wednesday, the truckers said the action would continue indefinitely. Chile's National Mining Society (Sonami), which represents small, medium and large-scale miners, said the free transit ... (full story)