The Seoul Metro labor union has warned that it could begin an indefinite strike on November 25 if demands for additional staff and higher wages are not accepted. The union said 6,715 of 7,782 participating members voted for strike action, while affiliated unions reported approval rates of 80.8% and 94.9%. Before the planned strike, workers are expected to begin a work-to-rule campaign on November 20, which could slow services by strictly observing station dwell times and refusing duties outside formal rules.
The Seoul Metro network covers Lines 1 through 8 and Sections 2 and 3 of Line 9, so any disruption could affect commuters and students across Seoul and the wider metropolitan area.