PT Onasis Indonesia is the leading EPCI company in Indonesia. With nearly two decades of experience, PT Onasis Indonesia provides fully integrated solutions in engineering, procurement, construction and installation services for the upstream Oil and Gas (O&G) Industry and Mining Industry within the region. PT Onasis Indonesia has built a distinct presence that guarantees us to be capable to serve both national and international clients’ strategic and long-term projects with reliable, accurate, professional services at a competitive rate.