That included proven and probable reserves of 163 million tonnes at 1.1 grams of gold per tonne for six million tonnes per ounces, reflecting additions of 0.8 million ounces in the open pit and underground before depletion. The board noted the confirmed underground expansion potential for Sukari, increasing underground ore mining rates to 1.5 million tonnes, which would be more than 30% above the current life-of-mine averages, driving future production growth from the mine. Centamin also upgraded the Doropo resource, with a total indicated resource of 51.2 million tonnes at 1.52 grams of gold per tonne for 2.52 million ounces of contained gold, including a 22% increase in grade and "significant" exploration upside potential. The board said the Doropo pre-feasibility study was "well-progressed", adding that more work was underway on the processing circuit assessing potential capital and operating cost savings. Completion of the pre-feasibility study was expected in the first half of this year.