Enraged at such reckless provocation, 2 140 coal miners of the Complex had volunteered to serve in the army until 17:00 of August 21 and the number of volunteers increased to more than 3 500 until 11:00 of next day.

Meanwhile, all its officials and employees turned out in a drive to radically raise the coal output under the slogan of "Display loyalty to the Party with increased coal production!"

In a day after the emergency enlarged meeting of the Workers' Party of Korea held to cope with the prevailing grave situation, coal mines of the Complex carried out their daily quota at 150 percent in the spirit of wiping out the provokers.