2016.11Awarded Contract for Tema Oil Refinery CDU Expansion Project in Ghana
(EPC & PMC, US$ 40,200,000)

2014.04Launched overseas plant CM service

2010.11Awarded Grand Prize in Green Energy from Korean Government

2008.09Registered as a cooperative company of KEPKO
(Korea Electric Power Corporation) for engineering services

2006.09Awarded industrial medallion from Korean Government

2006.02Established R&D; Center

2005.05Registered as a cooperative company of Kogas-Tech
(Korea Gas Technology Corporation) for engineering services

2003.04Registered as a company of new technology industry

2001.02Opened Ulsan office in SK Energy Ulsan Complex, Ulsan, Korea

2000.05Established OSUN Engineering Co., Ltd.