It wants to raise £1m to support further drilling for subterranean lithium-bearing brines in the ancient mining region of Cornwall, south-west England.
It currently has two thermal coal units — NSW Energy Coal in Australia and Cerrejón in Colombia —, which are expected to generate just 4% of the company’s earnings this year.
The company's gold production fell to 34,338 ounces in the three months to June 30 from 45,098 ounces in the previous quarter, equivalent to a 43% drop from Q2 2018.