BHP'sproposed takeover of Anglo Americancollapsed, after Anglo rejected an extension of a deadline for talks and said BHP's offer remained " unattractive" .
The Australian mining giant BHP has said that trade union leaders have refused to resume dialogue following their decision to begin a strike at the Escondida copper mine.
Last year BHP Billiton, the world's biggest resources company, deferred plans for a $20 billion expansion of a copper, gold and uranium mine at Olympic Dam in South Australia.
What most angers Almeida, she says, is how little the mining company, Vale, appears to have learned since a 2015 dam collapse at a mine it co-owned with multinational BHP.