It has met some resistance from developed nations like Australia in its quest to buy up mining and iron ore assets, but has been largely successful in Africa.

虽然在寻求收购采掘和铁矿资产方面，遇到源于像澳大利亚这样一些发达国家的阻力，但在非洲却获得了极大的成功。

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Mining companies are struggling to increase iron ore output in Australia, the world's biggest exporter, while the quality of Chinese domestic iron ore production fails to improve.

矿业公司正在艰难地提高全球最大铁矿石出口国澳大利亚的产出，而中国国内开采的铁矿石质量未能改善。

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In June, Rio rejected an offer by Chinalco, a state-controlled aluminium company, to raise its stake in the mining company to 18%, preferring a joint venture with BHP Billiton encompassing the iron ore assets of both comanies in Australia.

ECONOMIST: Rio Tinto and China