Power Metal Resources (LSE:POW) shares strengthened in Tuesday's trade, rising around 12.5%, after confirming a £13.58 million cash divestment.
The company has now sold its remaining stake (some 24.69 million shares) in Guardian Metal Resources (LSE:GMET), owner of tungsten projects in Nevada, receiving a price equivalent to 55p per share.
Power Metal highlighted its original investment, £1.93 million, which has since realised a substantial profit - over two separate share sales, the firm will have received £22.8 million in proceeds.
"I am very pleased to be able to announce that we have agreed terms to exit our position in GMET after what has been an enormously successful investment for Power Metal, and one that has generated very considerable shareholder value," said Power Metal chief executive Sean Wade.
"It [the divestment] represents a strong validation of our incubator model and gives us considerable firepower now to pursue other opportunities, a number of which have presented themselves to us in recent weeks."
Power Metal sold the stake in Guardian Metal Resources to an investment fund managed by Duquesne Family Office.
In London, Power Metal shares gained just over 9% to 15.3p - valuing the investment business at just over £18 million.
Guardian shares meanwhile rose 5.5% to 61.2p.