1. Defendant C Co., Ltd. shall pay to the Plaintiff KRW 90,366,680 and its amount from September 19, 201 to August 9, 2016.

1. Basic facts

A. On March 31, 2011, the Public Procurement Service, as the local government, requested the Public Procurement Service to conclude a construction contract for D construction works (hereinafter “instant construction works”). (2) On March 31, 201, the Public Procurement Service, as the ordering entity, made a public announcement of the tender for the instant construction works (hereinafter “instant tender”), and the relevant details are as follows.

11. Other matters are determined as eligible as a result of the design deliberation on November 3, 11.3, and among those determined as successful bidders, up to three persons whose design score is high, part of the design cost may be compensated in accordance with Article 101 of the Enforcement Decree of the Local Contracts Act and Section 7 of Chapter 1 of the "Standards for the Bidding and Execution of Contracts by Local Governments" established in the Administrative Draft Ordinance.

3) The construction tender description distributed by the Public Procurement Service at the time of the public tender notice, stating that “the participants in this case shall have access to and be aware of the following public notices, various regulations, etc., which form the following tender specifications, and all the responsibilities arising therefrom shall be borne by the bidders.” The relevant contents of the local government tender guidelines and the contract execution guidelines attached to the said tender statement, and the special subscription note for the construction project (hereinafter “the instant special subscription note”) are as follows:

) 제12조(입찰의 성립 및 무효) 시행규칙 제42조에서 무효로 규정한 입찰 및 다음 각호에 해당하는 입찰은 무효로 한다. 4. 담합하거나 타인의 경쟁참가를 방해 또는 관계공무원의 공무집행을 방해한 자의 입찰 [이 사건 특별유의서] 제28조(설계비 보상) ④ 입찰의 무효에 해당하거나 무효에 해당하는 사실이 사후에 발견된 자 및 회계예규 「정부입찰ㆍ계약 집행기준 제85조에 해당하지 않는 자는 설계비 보상...