Robert Friedland, founder and executive chairman of Ivanhoe Mines, said he would be happy to pay higher taxes if there is stability in Congo's rules and transparency in the accounting of those royalties.
Chile is an obvious place for Tesla's chief executive, Elon Musk, to look for secure supply, as the global lithium mother-lode is in the brine lakes of the country's Atacama desert.
With metals from zinc to palladium trading at multi-year highs, four of the world’s top producers generated combined free cash flow last year of about $87 million a day.
Rio’s renewed interest in SQM is welcome by the Chilean government, which had expressed concerns about a potential and dangerous concentration in the market should major lithium producers, such as China’s Tianqi, acquire the 32% interest in SQM.