A. On February 11, 2011, the Plaintiff entered into the instant construction contract with the company that manufactures and sells new and renewable energy equipment, etc., and the Defendant, a local government, concluded a contract for the instant construction project with the contract amount of KRW 224,323,310 as the contract amount, and the date of completion, May 16, 201 as the date of completion, and 0.1% of the contract amount. The instant construction project was implemented around that time.

B. 1) During the execution of the instant construction project, the Plaintiff discovered and notifies the Defendant of the parts necessary for design modification, such as the omission of automatic control devices in drawings. However, C, a supervisor of the instant construction project, who is a public official belonging to the Defendant, requested the Plaintiff to prepare and submit a positive report on the part requiring design modification. 2) Accordingly, at the overall process meeting on April 18, 2011, the Plaintiff submitted to the Defendant a written opinion on the design examination prepared by the first designer company, and the foregoing written opinion is as follows: “1) omission by the ground water circulation pumps, 2) lack of automatic control equipment, 3) absence of automatic control system monitoring equipment, and 5) installation of the ground water circulation pumps system monitoring equipment in the instant construction project.” Thus, the Plaintiff’s written opinion and supervision of the Plaintiff, who is a supervisor of the instant construction project, should be additionally reflected in the installation of 3) and 5) installation of the 3) installation of the 15th M&D design supervision (the foregoing written opinion of the Plaintiff’s supervision and supervision (the foregoing 1615th M&D).