1. The plaintiff's claims against the defendants are all dismissed.

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

Basic Facts

Witness

In full view of the purport of the entire pleadings in D’s testimony, Defendant B entered the Plaintiff Company (mutual E Co., Ltd. prior to the change) on June 1, 201 and served until April 201 as the head of the F field office where the Plaintiff Company performed the installation of steel pipelines. Defendant C served as a person in charge of the construction of steel and piping systems in the above F field from June 13, 201 to April 2012. From May 2012, Defendant B can be acknowledged the fact that the Plaintiff Company was working as the head of the field office at the construction site of G 1 and 2 where the Plaintiff Company was performing the installation of steel pipelines, and Defendant C was working as the vice head on October 3, 2014, and the Defendants retired on the part of the Plaintiff Company.

2. The Director at the Plaintiff’s assertion site is a person who performs duties as a general manager at the construction site, such as construction management at the construction site, material and labor management, process management, air forecast, prevention of danger in the construction site and resolution thereof, and official duties are those who need to inspect the construction execution plan to help the director make a correct judgment at the construction site and to smoothly operate the construction project team, such as prediction, construction plan, supply and demand plan, work demand plan, materials demand, calculation of the amount of materials required, material and public implements management, work budget compilation and analysis, etc.

The Defendants, while serving as the Director of the Field and the Director of the Public Service at the F Corporation’s site until April 2012, did not comply with the direction to transfer the official design to the Posium requested by the Plaintiff Company, and neglected the construction work after the completion of the construction. As a result, the Plaintiff Company lost KRW 5,012,880 and equipment of the general construction section 2,706,000.

As a result of the Defendants’ negligence in managing materials at the site in relation to the steel frame construction at G power plants, the Plaintiff Company suffered loss of the amount of KRW 13,000,000,000 for the sports snow materials and the amount of KRW 2,50,000 for the oxygen and for the contact work.

The manufacture and supply of steel-frames in performing construction works by subcontracting steel-frame installation works from modern construction among G development projects.