Saihei HIROSE, as the sorinin (general manager) was in charge of actual operations, but Tomoito made an inspection tour to Besshi dozan copper mine, making on-site inspections of each company and acquired the Shoji Tanko coal mine.
広瀬宰平が総理人としてあり、実際の経営に当たるが、友純は別子銅山を巡視し、各社を視察し、庄司炭坑を買収した。