Australian commodities analyst Peter Rudd says BHP has set records for the production of key minerals.

澳大利亚商品分析人士鲁德说，必和必拓主要矿产的产出创下记录。

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BHP Billiton said the increase was due to strong demand for minerals, especially in China.

必和必拓公司指出这主要是因为对矿产需求的增加，尤其是中国。

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Mr Mackenzie has 30 years' experience working in oil and gas, petrochemicals and minerals, and had previously held senior positions at BP and Rio Tinto before joining BHP in 2008.

BBC: Marius Kloppers

Investors seemed less concerned by the risks of digging up minerals, more by potential political obstacles in the wake of the Canadian government's intervention to block BHP Billiton's hostile takeover of Potash Corporation.

ECONOMIST: Boom time for miners in a resource-hungry region