The Estevan Coalfield is a formation of about 1500 square kms that accounts for most of Saskatchewan’s coal production. The coal is strip mined, processed, and then used to fire the two power plants in the area. These plants provide almost half of Saskatchewan’s electricity. Today there is just one company mining coal in the Estevan area, but with several huge draglines operating. Annual production is approximately 8 million tonnes.
In a Canadian first, Sherritt Coal's Prairie Mines and Royalty mine site near Bienfait operates a $70 million dollar activated carbon project in partnership with Dutch firm Norit NV. The project has an annual capacity of about 15,000 short tons and the innovative process utilized at the Bienfait mine eliminates most of the mercury emissions from flue gas at coal-fired power plants.