YOOSHIN was established in January 1966. Ever since then, Yooshin has consistently grown into one of leading engineering consulting firms in Korea. Yooshin boasts diverse kinds of project experiences including route survey and detailed design of ‘Gyeongbu Expressway’in 1967; technical survey, detailed design and construction supervision of 'Gyeongbu High-speed Railroad in the late 1980s, and; planning, design and construction supervision of ‘Incheon Internationl Airport(IIA)’in the early 1990s, greatly contributing to the 1st Phase opening of IIA scheduled in March, 2001. It has been also continuously playing a leading role for the IIA 3rd Phase project, following its successful completion of the IIA 2nd Phase project. Specialized in transport facilities such as roads, airports, railroads, high-speed railroads, subways, bridges, tunnels, and ports, Yooshin has also provided various planning & design services in the living environmental sectors such as water resources, urban planning, leisure & landscape, and environment improvement over the past four decades. As an internationally competitive engineering firm, Yooshin has expanded its overseas market share by actively advancing into Southeast Asia, the Middle East, and Africa. And more recently, It has provided technical consulting service on the three-dimensional(3D) cable installation for the Oakland Bay Bridge Project in USA. Meanwhile, Yooshin is the nation’s only engineering consulting firm listed on the KOSDAQ market (January 2002). Now in pursuit of “Low Carbon Green Growth”, Yooshin has participated in diverse environment-friendly projects including the and provision of water resources. We will put our utmost efforts to contribute to the achievement of "Environmentally Sustainable Development" and co-existence between human and natures. Yours