1. The Defendant: 379,273,934 won for Plaintiff A corporation; 75,854,786 won for Plaintiff B and E corporation, respectively.

1. Basic facts

A. The parties 1) The defendant is a corporation established for the purpose of constructing and managing railroad facilities under the Korea Rail Network Authority Act and carrying out other projects related thereto, which is the "G Corporation" in the Filil City of racing (hereinafter "the construction of this case").

2) The Plaintiffs are contractors awarded contracts for the instant construction work ordered by the Defendant by organizing a joint supply and demand organization representing the Plaintiff A Co., Ltd.

B. On May 19, 2010, the Defendant publicly announced a tender for the instant construction project, and the Plaintiffs and H Co., Ltd. (hereinafter “Plaintiff, etc.”) (hereinafter “Plaintiff, etc.”)

(2) On May 24, 2011, the Defendant entered into a contract for construction works (hereinafter “instant contract”) with the Plaintiff, etc. with the terms of contract amounting to KRW 92,954,400,00, and the construction period from May 24, 201 to June 23, 2014.

3) In around 2014, the Plaintiffs acquired the shares of H Co., Ltd. that withdrawn from the joint supply and demand organization. At present, the ratio of investment in the joint supply and demand organization was changed from the Plaintiff Co., Ltd. (I Co., Ltd. on December 30, 201 to A Co.

hereinafter referred to as "Plaintiff A" in combination before and after the change of trade name.

) A 5.55% and Plaintiff B Co., Ltd. (hereinafter “Plaintiff B”).

) Plaintiff E (hereinafter “Plaintiff E”) and Plaintiff E

On September 27, 2013, the trade name of the Plaintiff Co., Ltd. (J Co., Ltd.) was changed from September 27, 2013 to C.

hereinafter referred to as "Plaintiff C" in combination before and after the change of trade name.

) A.67% and Plaintiff D Co., Ltd. (hereinafter “Plaintiff D”)

5.56 per cent. (c) The terms and conditions of the instant contract and Article 3 of the amendments thereto (2) shall be mutually consistent, but if the contents of the submitted tender are different, it shall be assessed in the order of priority as follows:

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