The workers of the Anju Area Coal Mining Complex, deeply aware that boosting the coal output is very important for the country's economic growth, have raised capital tunneling more than 2.7 times, preparatory tunneling some 1.8 times and coal production over 2.7 times in the first half of the year, compared with the same period of the previous year.

As of June 21, the complex topped its target for the first half of the year at 102 percent.

Sinri, Yonphung, Chilli and other coal mines under the complex have introduced rational hewing methods suited to their coal beds and operated the tunneling and hewing equipment at full capacity to steadily increase the production.

The Kaechon Area Coal Mining Complex has brought about a big result in tunneling and hewing by solving hundreds of scientific and technical issues.

Coal mines under the Sunchon Area Coal Mining Complex have also boosted the production.

The Sinchang Youth Coal Mine has surpassed their May and June assignments.

From the beginning of the year the Ryongdae Coal Mine has reserved scores of cutting faces with large deposits to provide solid foundations for increased production.

The Hakpho Coal Mine in North Hamgyong Province has overfulfilled its daily quotas at more than 120 percent.