Officials of the complex powerfully aroused the workers to display revolutionary enthusiasm and creative initiative and ingenuity in the drive to perform new miracles and feats in manufacturing highly efficient electric locomotives by carrying forward the tradition of struggle established by heroes in the era of Chollima who produced electric locomotive Pulgungi (red flag) No. 1.

Nearly 100 proposals for new technology and work methods were applied to practice during the 70-day campaign.

Electric locomotive Pulgungi No. 5435 was assembled in a matter of just two days.