가스앱 - 가스비 절약의 시작
Following Seoul, Incheon, Jeju, JB Co., Ltd., Daeryun E&S, and Yesco, Gunsan City Gas has become a new family of gas apps. ▶ Gunsan city gas: Gunsan-si, Buan-gun, Imsil-gun, Jinan-gun, Jeollabuk-do - Feb. 2023 ▶ Yesco: All areas of Jung-gu, Gwangjin, Seongdong, Dongdaemun in Seoul, Jungnang, Jongno