PT. Yuan Sejati has established in Jakarta on January 1982, started as civil contractor in Bali, Java and Sumatera. Since 1984, the company have been focusing on trading business in Oil and Gas Market specially on custody metering. Following with the market need the company also growing from trading business completed with engineering and services. PT. Yuan Sejati as one of Migas approved for custody metering system integration certified with ISO 9001, ISO 14001 and OHSAS 18001, handle by 100% local people, make the company have more advantages.