This is the 6037th most frequent Korean word.
서울교통공사는
Seoul Transportation Corporation.
서울교통공사는 is used as the subject, referring to the organization responsible for subway operations in Seoul.
서울교통공사는 지하철의 정시 운영을 위해 노력하고 있습니다.
Seoul Metro is striving for the punctual operation of subways.
서울교통공사가 functions as the agent of the action carried out, identifying the entity performing the facility upgrade.
이번 시설 개선은 서울교통공사가 진행한 것입니다.
The recent facility improvement was carried out by Seoul Metro.
서울교통공사가 is used to indicate the provider of the subway map, attributing the source to Seoul Metro.