Rio Tinto will raise up to $15.1 billion in asset sales and cut spending on decarbonisation by $6 billion under chief executive Simon Trott’s plan to make the miner “stronger, sharper and simpler”.

In his first major strategy briefing since taking the helm 102 days ago, Trott said he wanted Rio to become the world’s “most valued” miner by delivering a leaner and more focused version of the diversified portfolio that produces iron ore, copper, aluminium and lithium.