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Donald Trump’s tariff rollout is likely to see higher costs being passed on to end users of aluminium, after the policy failed to boost the supply of American-made products the last time the US President was in office, warns Graham Kerr, the boss of diversified miner South32.

Meanwhile, energy bills could rise by nearly 70 per cent over the next 10 years under current government policy, a new report has estimated, with the findings likely to be seized on by the Coalition as it pushes its alternative plan. 

And Ron Mitchell has quit as executive chair of Global Lithium Resources after losing a months-long battle against a group of Chinese-linked shareholders for control of the WA-based company.