1187, 16 December 1930 Chōtetsu then began building eastwards from Haeju to create a southern connection to the Kyŏngŭi Line, the state-owned Chosen Government Railway's (abbreviated Sentetsu) mainline from Kyŏngsŏng to Sinŭiju and Andong, Manchuria, opening the first section of a new 762 mm narrow-gauge line, from East Haeju to Yŏn'an, on 21 December 1931.