Mitsuboshi Mining carries out Limestone mining operation at Mt. Kinsho and aims to utilise the resource as effectively and efficiently as possible .At the same time , the Company is already working on the ex-mining site regeneration plan by starting on greening etc ahead of the time when the mining comes to an end .

Mining Div . Industrial Tech Div.
Rational mining plan is created using mining CAD (with survey and geological investigation result) and limestones are mined according to the plan .The stone is then crushed , washed, sorted and stored .The water used to wash the stones are processed at the waste water treatment plant to separate mud and water , then the recycled water is reused again .The Industrial Tech division works to make improvement on safety management skills as well quality management of the limestone etc .
Green Court Div
Gardning , civil engineering and enviromental regeneration are taken care by the division . They also carry out landscaping , subsurface survery , subsurface amendment ,foundation construction work etc. as welll .Agriculture is another one of their operation and they produce Omi Yogo rice and AKasaka's fig etc. In 2015 , cafe and shop "VEGETABLE SHOP Yogo farm " was opened With the mine regeneration and return to natural agricultural method as the core of the businesses, the division expand the businesses with 100years time in its mind .