Pyongyang, June 25 (KCNA) — The Onsong Area Coal-mining Complex is tunneling a phosphorite pit, according to Rodong Sinmun.

When the complex completes tunneling thousands of meters of main drift and concreting hundreds of meters of pit and constructs a winch ground and stock dump, it will lay another foundation for the normalization of the production of phosphoritic fertilizer, thus making a contribution to increasing the grain production of the country.

The shock brigade members are now over-fulfilling their daily tunneling plans.