Lynas cashflow positive in weak market

A sector that was once racing to build new supply has been closing mines and deferring projects as low prices bite into the cost curve.

Futures dropped for a fourth day in Singapore, to trade about 3% lower for the week.

Worsley began operations around 40 years ago and is one of the world's biggest alumina refineries.

BHP needs to offer at least a 40% premium over Anglo's share price for a new takeover bid, but its CEO has committed to spending discipline.