Complex sentence: In January 1924, Muling Coal Mine Corporation was operated jointly by the Jewish Solomon L. Skidelsky and Jilin Province, whose headquarters was in Ashihe Street, Nangang District, Harbin.
Split into simpler sentences: In January 1924, Muling Coal Mine Corporation was operated jointly by the Jewish Solomon L. Skidelsky and Jilin Province government. The headquarter of the company was in Ashihe Street, Nangang District, Harbin.