All we seek is a president ready and able to roll up his sleeves and focus on our issues.

FORBES: Competency, Not Ideology, Is What Will Determine The Election

"Our motto in the last few days has been to roll our sleeves up and focus on the job in hand, " he said.

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Now analysts believe it is re-evaluating its Asian strategy to focus on a few core markets rather than roll out a pan-Asian network.

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"We are taking further tough action to roll back the unsustainable cost increases of the past few years and are maintaining a relentless focus on improving productivity, " said Tom Albanese, chief executive of Rio Tinto.

BBC: Rio Tinto targets $5bn cost cuts as prices tumble