BHP Billiton raises guidance

The Australian mining firm is targeting $4 bil in annualized productivity gains in its core portfolio by the end of the '17 financial year. In Aug., BHP Billiton (BHP) said it would separate into a "simplified" company with iron ore, copper, coal, petroleum and potash, while a new company would have aluminum, nickel, coal, silver and manganese assets. Shares fell 2.2% to 56.08.

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