1. The plaintiff (Counterclaim defendant)'s main claim and the defendant (Counterclaim plaintiff)'s counterclaim are dismissed, respectively.

2. Of the costs of lawsuit.

A principal lawsuit and a counterclaim shall be deemed to be valid.

1. Basic facts

A. On March 2016, the Defendant: (a) prepared and issued a written instruction to conduct a service contract to improve the Defendant’s network system; and (b) issued it to the Plaintiff; and (c) the scope of the tasks listed in the written instruction to conduct a service is as follows.

The Plaintiff prepared a written estimate for the performance of the above services and delivered it to the Defendant on April 20, 2016.

(The amount of check 354,053,944, value added tax separate).

1) Project management system 1) Project/Budget management 2) Business trip and travel expenses management 3

(b) Financial Accounting Management System 1) Financial Accounting Management 2) Additional Tax Management 3) Loan Management 4) Electronic Tax Invoice Management 6) Electronic Tax Invoice Management 6);

(c) personnel management 1) personnel management 2) personnel management 3) management 3) management 4) leave management and leave (application) management 4);

(d) Pay / Retirement Allowance Management 1) Calculation of pay and year-end settlement management 2) Management of overtime work allowance 3) Management of retirement allowance and retirement pension 4) Management of 5 employee exclusive of 5 employee;

(e)other (i) refund management 2) linkage with existing systems arising from the advancement of the three information systems for postmortem corrections management;

(f) the application of mobile group N. 1) Group N.S. TRAY ICN in terms of PCBS N.

(g) White/Stop/Virtual system application 1) White system 2) Stop 3 virtualization system

B. On May 3, 2016, the Defendant concluded a service contract for the establishment, etc. of the Defendant’s network system enhancement (hereinafter “instant service contract”) with the Plaintiff, and concluded the program, etc. to be developed and supplied by the Plaintiff under the instant contract (hereinafter “instant system”). The term of the contract was 210 days from the date of conclusion of the contract, and the price of the goods was 389,459,338 won (including value-added tax).

The main contents of the goods supply contract formulated on the date of conclusion of the instant service contract are as follows.

Article 4 (Supply and Installation of Goods) (1) The Plaintiff shall take its responsibility and costs within the supply period.