The Class G is an electric multiple unit train type used on the Berlin U-Bahn.

[1] In 1997, 60 sets were sold to the Pyongyang Metro in North Korea.

A twin LCD advisement displays were also added and since the 2010s, the left screen shows next station information.

The interior of the doors was also repainted gray replacing the oak brown color.

After the GI class was withdrawn from use on the Pyongyang Metro, they were converted by the Kim Chong-t'ae Electric Locomotive Works to operate as EMUs on the national railway lines of the Korean State Railway, which numbered them in the 500 series.