Shares in Perilya Ltd have dropped by over 40 per cent on news it will sell its Mount Oxide copper and cobalt project to West Perth-based Chalice Gold Mines Ltd in a scrip deal worth $25 million.

Shares in Perilya Ltd have dropped by over 40 per cent on news it will sell its Mount Oxide copper and cobalt project to West Perth-based Chalice Gold Mines Ltd in a scrip deal worth $25 million.