This led to quadrupling the earth removing capacity while remarkably shortening the distance of heavy-duty trucks' running. It also made it possible to increase the production of quality concentrated ores and laid another solid foundation for the nation's metal industry.

A ceremony for the completion of the plant was held on Tuesday.

Present there were Ri Thae Nam, vice-premier of the Cabinet, Kim Thae Bong, minister of Metal Industry, O Su Yong, chief secretary of the North Hamgyong Provincial Committee of the Workers' Party of Korea, and others.