UPDATE 2-Brazil?s Vale reports worst loss in 20 years on commodity slump
UPDATE 2-Brazil?s Vale reports worst loss in 20 years on commodity slump
RIO DE JANEIRO, Feb 25 (Reuters) - Brazilian miner Vale SA reported a fourth-quarter net loss of $8.57 billion, its worst ever as a private company, as weak commodity prices and hefty writedowns heaped further pressure on the world's largest producer of iron ore.
