Bauxite miner Axis launches $29bn claim against Guinea
Mining groups lose licences as resource-rich African states seek bigger share of profits
Economic news
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China signals tolerance for stronger renminbi
Central bank fixes currency at highest level against dollar in 15 months
Trump-linked crypto venture retains auditor with chequered history
Alt5 Sigma’s accounting firm lacks licence and has failed an inspection under industry’s peer review process
The AI boom is not a bubble
Valuations may be spectacular and a bust could come — but while there’s exuberance there is no mania or irrationality
Copper prices rise by most in over a decade
Analysts expect demand for industrial metal to outstrip mined supply by 2030s
The wildcat traders and US contractors piling into Pakistan’s antimony
Fears about China’s control of the rare earth supply chain have bolstered demand for alternative suppliers