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Seosan Service Area (Upper and Lower) and Gas and LPG station is the privately owned service area which the operation and construction was operated by the business proprietor which launched its business in 2002 with the opening of entire route of Seohaean Highway. We are trying our best to provide not only the distinct facility infra such as spacious area and parking space, modern buildings and interior, comfortable and cheerful convenience facilities and environmentally friendly landscape and environment, but also impressive client services.