Mountain Province CEO steps down
Canadian diamond miner Mountain Province president and CEO Mark Wall has resigned from the company to pursue other opportunities but will remain in his role until December 19, to ensure a smooth transition.
The board has started a search for a new CEO, with chair Jonathan Comerford thanking Wall for his “substantial contribution” over the past four years, a period he described as “very challenging for both the company and the diamond industry”.
The announcement comes a day after Mountain Province delivered its third-quarter results, which showed a net loss of C$55.9-million and adjusted earnings before interest, taxes, depreciation and amortisation of negative C$4.3-million.
During the quarter, 409 081 ct were sold for C$29.2-million at an average price of C$71/ct.
The company said mining through the transitional phase of the high-grade 5034-NEX orebody at the Gahcho Kué mine, in Canada’s Northwest Territories, had started, with material from this zone now being processed.
A five-day maintenance shutdown was completed during the period, positioning the plant for improved performance in the fourth quarter and into 2026.
Wall said that the third quarter had been a “period of hard work” focused on safety and mine operations, noting that the site achieved its lowest total recordable injury frequency rate in its history, at 1.43 for the first nine months of 2025, dropping further to 1.29 after the quarter.
He added that carat grades were expected to significantly improve in the fourth quarter, as mining continues in the 5034-NEX orebody.
Mountain Province owns a 49% stake in the Gahcho Kué joint venture with De Beers Canada, which continues to produce and develop several kimberlite deposits in the region.
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