1. The plaintiff's claim is dismissed.

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

1. Basic facts

A. The Defendant is a company with the purpose of selling, leasing, etc. equipment related to network, and the Defendant is a company with the purpose of leasing, etc. (hereinafter “KT”).

2) The project undertaken to improve the internal telecommunications network of our bank (hereinafter “instant project”).

Part of the subcontract is accepted, and on December 26, 2012, the Commission system, Inc. (hereinafter “the Commission system”).

(2) On February 14, 2013, the Defendant entered into a contract on the supply of goods to be supplied with the Defendant’s equipment [this case’s financial DDR-related equipment: H/W, 6500 Acsry, 6500 S/W (Nm) related to the Technology Support Center: H/W, 6500 H/W, 650 Acsry, 650 Acscesry, 6500 Accesry, hereinafter “the equipment of this case”) that is essential to the project of this case and that is supplied with the goods to be supplied with the goods of this case by the Defendant on the basis of the amount indicated in the said Cccesy, 81,030, and 280 price for the goods indicated in the Cccesy, 2013.

After that, the defendant and the window system changed the price of goods to KRW 820,133,800, but finally decided the price of goods to KRW 790,703,400 on May 27, 2013.

B. On March 21, 2013, the Plaintiff and the Defendant drafted a contract for goods supply with the content that the Defendant would supply the instant equipment for KRW 820,133,800 from the Plaintiff. On June 11, 2013, the Defendant drafted a contract for goods supply with the Defendant to change the price of the goods to the price of KRW 790,703,40 for the goods changed to the price of the goods changed to the price of KRW 790,703,40.

[Reasons for Recognition] Facts without dispute, Gap evidence 1, 2, Eul evidence 1, 2, 6, 8, Eul evidence 10-1, 2, Eul evidence 15-1, 2, Eul evidence 21-1, 2, 24-1, 24-4.