You seem to have inside, non-public information. What is the alleged offense? Where can we read about it? I found nothing in the Chilean press.
By the way, BHP owns only 57.5% of Escondida. Other owners are Rio Tinto, JECO and IFC. They have operated there for decades (discovery 1981, began mining 1988) with Government approval. Odd that this problem, if it is a problem, not heard of before.