After learning about the mine development, he went round pit No. 6 to learn in detail about mechanization, tunneling and transport capacity.

He met miners who are fulfilling the daily production quota more than 150 percent to congratulate them on their successes and encouraged them to increase coal production, true to the intention of Marshal Kim Jong Un.

He underlined the need to increase coal production, true to the intention of the Workers' Party of Korea on concentrating all our efforts on building an economic giant to bring about a fresh turn in developing the country's economy and improving the people's standard of living.

A consultative meeting there discussed issues of stepping up the general mechanization of the work in pit and putting efforts into coal dressing and other issues of increasing coal production.