In the Minusinsk area, the estimated reserves are 20,612,000,000 tonnes; the Chulym-Yenisei mine is estimated at 43,000,000,000 tonnes; the Kansk sources estimated at 42,000,000,000 tonnes; and Cheremkhovo estimated at 79,000,000,000 tonnes. The Kuznets area has excellent coal for coke, chemical and gas production. Production in 1913 was 774,000 tonnes. In 1927, these mines extracted about 2,600,000 tonnes to maintain one extraction of 16,800,000 tonnes. The modernized Prokopyevsk mine has an expected production capacity of about 3,200,000 tonnes. The other sources are in Stalinsk (Kuznets), Lenin-Kuznets, Kemerovo, Anzhero-Sudzhensk, Chernogorsk, and Cheremkhovo