抄録
Although the Kamioka Mine faced a crisis in the past several years, it has regained its competitiveness and profitability by streamlining the operation. The management set the followings to double its productivity as their challenging goals:
(1) Increasing the production capacity from 3, 500 to 4, 000 tonnes per day
(2) Developing a highly productive mining system-Super Mechanized Cut & Fill method
(3) Streamlining the administrative and service departments
As a result, the following achivements have been made over the past four years
(1) Doubled the labour productivity to 45 tonnes per man shift
(2) 32 percent decrease in the operating cost
(3) The ratio of net profit to net sales has increased to 38 percent.
This paper describes the achievements of the management that revived the international competitiveness of the Kamioka Mine.
