Inveni. 

Yesco Holdings Co., Ltd. primarily focuses on the distribution of city gas. Its wide-ranging offerings also include the provision of various gas equipment, tank terminal solutions, and both air-conditioning and heating systems. The company further supplies compressed natural gas (CNG) charging stations, biogas, and undertakes projects related to water treatment construction. Significantly, it delivers liquefied natural gas (LNG) to approximately 1.14 million households throughout the Seoul metropolitan area. Beyond these energy and utility services, Yesco Holdings manufactures and markets precast concrete, and is involved in residential design and timber processing operations. The company was established in 1981 and operates from its main office in Seoul, South Korea.