The Jangsan Mine over-fulfilled its production plan for January and February 1.6 times and 2 times, and has steadily increased the production on a daily average in March, too.

The Ramjong Mine carried out its plans for January and February by 104 percent and 122 percent respectively and has produced a larger amount of fireproof materials than planned every day in March, too.

Officials and workers of the Yuson Coal Mine and the Taesong Mine are increasing the production to glorify this significant year marking the 80th founding anniversary of the Workers' Party of Korea with proud labor achievements.