Panama has authorized the sale of copper concentrate at First Quantum's shuttered Cobre Panama mine, President Jose Raul Mulino said on Thursday, boosting shares in the Canadian miner by 15% to a two-month high on the Toronto Stock Exchange.

First Quantum Minerals Ltd. was cleared to begin shipping out stockpiled copper in Panama, the latest sign authorities may be willing to negotiate a restart of the company’s giant shuttered mine.

Panama has authorized the sale of copper concentrate from First Quantum Minerals shuttered Cobre Panama mine, President Jose Raul Mulino announced, boosting the Canadian miners shares by 15% on the Toronto Stock