But reducing spending further to what Rio optimistically calls “sustaining levels” – with capex of just $2.5bn – would be risky. Maintenance capex tends to be the minimum auditors allow to avoid big depreciation charges, leaving asset owners badly positioned for an upturn.
不過，將支出進一步降低至力拓樂觀認為的“生存水平”——資本支出僅25億美元——會很危險。維持性資本支出一般是審計人員所準許的、避免高額折舊費的最低支出，讓資產所有者很難出現轉機。
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