Mountain Province Diamonds Announces Leadership and Operational Update

Core Points - Mountain Province Diamonds Inc. announced the resignation of President & CEO Mark Wall, effective December 19, 2025, to pursue other opportunities [1][4] - The company has commenced mining through the transitional phase of the high-grade 5034-NEX orebody, with processing underway [2] - The Board of Directors will initiate a search for a new President and CEO [3] Company Operations - The Gahcho Kué mine is positioned for strong performance in Q4 2025 and 2026 following the completion of a five-day plant maintenance shutdown [2] - Mountain Province holds a 49% stake in the Gahcho Kué diamond mine, which consists of several actively mined kimberlites [4] - The company controls over 96,000 hectares of mineral claims and leases surrounding the Gahcho Kué Mine, including significant mineral resources [4] Mineral Resource Estimates - The Kelvin kimberlite is estimated to contain 13.62 million carats in 8.50 million tonnes at a grade of 1.60 carats/tonne, valued at US$63 per carat [4] - The Faraday 2 kimberlite is estimated to contain 5.45 million carats in 2.07 million tonnes at a grade of 2.63 carats/tonne, valued at US$140 per carat [4] - The Faraday 1-3 kimberlites are estimated to contain 1.90 million carats in 1.87 million tonnes at a grade of 1.04 carats/tonne, valued at US$75 per carat [4]