The first locomotives with a 4-6-2 wheel arrangement to operate on Korean rails was Sentetsu's Pashii (mean: Pacific class 1) class.
The exact dispersal of the Pashii class between North and South after the partition of Korea is uncertain, but nine are known to have served with the Korean National Railroad, where they were classified 파시1 (Pashi1); these were 파시1-3 through 파시1-5, 파시1-7, 파시1-9, 파시1-10, 파시1-12, 파시1-16, and 파시1-18 [REF].