"Three years of falling lithium prices failed to incentivise sufficient investment into supply chains, leading to greater risks of price volatility as battery demand ramps up."
The mining cycle turned two years ago – gains for the sector's largest companies have far outpaced stocks like Apple, Amazon, Google and Facebook since.
Crystallex International Corp is seeking to collect $1.2 billion plus interest awarded in 2016 by a World Bank tribunal against Venezuela, which Venezuela has refused to pay.
Vale and BHP Billiton in talks over future of their Samarco iron-ore joint venture, including the possibility of the Brazilian miner taking full ownership.