The Ch'ŏngnyŏnjŏl Kinyŏm-class (Korean: 청년절기념, "Youth Day Memorial") is composed of two groups of Bo-Bo electric locomotives operated by the Korean State Railway on passenger and freight trains throughout North Korea.

[1][page needed] In 1981, the Korean State Railway took delivery of seven Francorail-MTE CSE26-21 diesel locomotives from France, followed by five more in 1985.

One example, number 4054, is painted in a unique yellow over green livery, and has been on display at the Museum of the Three Revolutions in P'yŏngyang since it was built.

[1][page needed] At least seven examples of the 90000 series are operated primarily as traction for mainline passenger trains,[1] [page needed] painted in the standard light blue over dark green livery.

A narrow-gauge version has also been built to operate on the Korean State Railway's electrified 762 mm (2 ft 6 in) gauge lines, painted in a yellow and red scheme,[1][page needed] but neither the designation, series number or number built are known.