A source said the LME had made contact with established online venues Trayport and EBS, which are currently focused largely on energy and foreign exchange.
Prices for cobalt metal, used in production of electric vehicle batteries, have tripled to nine-year peaks above $30 a pound from below $10 a pound in late 2015.
Lacklustre performances by small mining companies on the London Stock Exchange are driving rivals in need of cash to find alternative ways to raise capital.
Teck expects larger proportion of coal sales in fourth quarter to be non-premium, reducing average realized price to about 85 percent of benchmark prices.
