Iron ore, molybdenum and nickel are the main commodities executives see as having the highest likelihood of depreciating in value over the next three years.
Chairman of mining group Hanlong, Liu Han's disappearance also highlights the dangers faced by Western firms trying to do business with Chinese tycoons.
Chilean state-own Codelco, the world's largest copper producer, said Thursday its January-September profits climbed 27% compared to the same period last year, thanks mainly to the settlement of a heated legal dispute over a copper mine with diversified miner Anglo American (LON:ALL).