1. The plaintiff's claim is dismissed.

2. The costs of lawsuit shall be borne by the Plaintiff.

Basic Facts

Plaintiff

The status of the plaintiff, D Co., Ltd. (hereinafter referred to as "D") and D Co., Ltd. (hereinafter referred to as "stock company" in the name of all companies; hereinafter referred to as "D"), E, F, G, H, I, K, K, L, M, R (hereinafter referred to as "existing 12 companies"),O, P, Q, R (Revised Trade Name: S), T, U, V,W, W, X, andY (hereinafter referred to as "new performance 10 companies"), and "2 companies, such as the plaintiff, etc." are those engaged in construction business under Article 2 subparagraph 1 of the Monopoly Regulation and Fair Trade Act (hereinafter referred to as "Fair Trade Act").

The order of the Korea Gas Corporation is an underground underground pipeline that supplies high-tension natural gas produced from the production base to the supply point for stable gas supply to the gas supply source of the gas bid fence for the Z construction works.

In accordance with its function and use, the management office of the management office is classified into a pressure control office, a blocking control office, and a block valve, and the pressure control office has a role in supplying the natural gas transported by high-tension through piping network with reduced pressure at a certain pressure required by the supply office, and the blocking control office shall block gas supply or major gas supply at the time of an emergency.

The role of blocking gas flow at the time of construction works, and the block valves play the role of a kind of valve room to promptly block pipeline network when an emergency situation occurs. The supply facilities constructed and operated by the Korea Gas Corporation to supply natural gas to large-user power plants and urban gas companies.

On April 2009, the Korea Gas Corporation ordered the construction of natural gas supply facilities from around the end of 2008 to August 2012, 201 and conducted a bid for major pipe and management office construction works for the total 29 construction sections (17, 2009, 1, 2010, 8, 2012, 3, 201). Of them, 22 companies, including the Plaintiff, etc., participated in the bidding after prior agreement on the division of construction sections, the successful bidder of each construction section, and the bid ratio.