Chosen Anthracite Company 1946, becoming part of the Korean State Railway. Chosen Anthracite Company The Chosen Anthracite Company, Ltd. (Japanese: 朝鮮無煙炭株式会社 "Chōsen Muentan Kabushiki Kaisha"; Korean: 조선무연탄주식회사 "Joseon Muyeontan Jusikhoesa") was a kabushiki kaisha in colonial Korea that operated collieries around Korea. It was founded in 1927 by the Mitsubishi "zaibatsu" of Japan by integrating the anthracite mining operations around Pyongyang, eventually becoming the largest coal-producing company in Korea - 74.9% of the coal distributed in Korea was produced by the Chosen Anthracite Company. In 1935, majority control of the Chosen Anthracite Company went to the Oriental Development Company (Japanese: "Tōyō Takushoku Kabushiki
Anthracite power-generation. The rarer higher grades of anthracite are purer – i.e., they have a higher carbon content – and are used in steel-making and other segments of the metallurgical industries. Technical characteristics of the various grades of anthracite are as follows: Anthracite is divided by size mainly into applications that need lumps (typically larger than 10 mm) – various industrial processes where it replaces metallurgical coke, and domestic fuel – and those that need fines (less than 10 mm), such as sintering and pelletising. The common American classification by size is as follows: Lump, steamboat, egg and stove coals, the