1. The plaintiff's claim is dismissed.

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

1. Basic facts

A. The party's status as the same sectional power company (hereinafter referred to as "the same sectional power company") is the contractor of the above construction, the defendant is the subcontractor of the above construction, and the plaintiff is the sub-contractor of the above construction project, and the plaintiff is the sub-contractor of the above construction project.

B. 1) Promotion of the Project: East Construction and the Korea Eastern Development Co., Ltd. (hereinafter “Korea East Development”).

2) On July 1, 201, the Ministry of Trade, Industry and Energy (Ministry of Knowledge Economy at the time, Ministry of Knowledge Economy, Ministry of Trade, Industry and Energy, and Ministry of Trade, Industry and Energy (Ministry of Knowledge Economy at the time, Ministry of Knowledge Economy, Ministry of Trade, Industry and Energy, Ministry of Knowledge Economy, Ministry of Knowledge Economy, Ministry of Trade, Industry and Energy, and Ministry of Trade, Industry and Energy, Ministry of Trade, Industry and Energy, Ministry of Trade, Industry and Energy, etc.)

3) The progress in the development of the Eastern Construction and EPC Agreements (Engine), on December 1, 201, refers to the construction form in which all the processes of design, material procurement and construction are offered as the weak in the entire process to the extent of design, material procurement and construction.

(4) On October 15, 2012, the Defendant submitted a written estimate of KRW 43,850,000,000 (in relation to the instant construction project, the same shall apply hereinafter) of the construction cost in relation to the construction in the Dongbu Construction.

C. (1) The Plaintiff and the Defendant entered into a contract on December 17, 2012, with respect to the instant construction works, the contract amount of KRW 37,500,000,000 for the contract amount and the contract period from December 17, 2012 to December 31, 2014 for the production and supply of construction materials as follows (hereinafter “instant contract”).

Article 20 (Cancellation and Termination of Contract) of the General Conditions for Contracts (2) The defendant or the plaintiff shall notify the other party in writing of the performance of the contract for a specified period of not less than 14 days, and if the other party fails to perform his/her contract within that period, all or part of the contract.