1. The defendant shall pay 636,094,250 won to the plaintiff and 20% per annum from March 28, 2014 to the day of complete payment.

1. Facts of recognition;

A. Both-use construction companies (hereinafter “bridge construction”) were awarded contracts from the Defendant for the “ABD New Construction Works” (hereinafter “instant construction”).

B. On March 29, 2012, the Plaintiff and pair-use construction entered into a contract with the Plaintiff to install ABS facilities (i.e., electricity and lighting control, CCTV, access, and management of facilities) (hereinafter “Intelligent Building System facilities”) in the instant construction by supplying ABS facilities (including value-added tax) at the price of KRW 797,50,00 for pair-use construction (hereinafter “instant contract”).

Since then, the supply period was changed and finally determined by December 31, 2013.

C. On February 20, 2013, the Plaintiff, the Defendant, and the Construction of Both Parties made an agreement that includes the following (hereinafter “instant agreement”).

The Defendant shall pay the price incurred from the date of entering into the agreement of this case directly to the Plaintiff after confirming the construction for pairs with the Defendant, and no objection is raised against it (Article 2). The date and method of settlement and settlement of the price of delivered goods shall be paid through the confirmation of the Defendant in accordance with the previous contract of this case.

(Article 3). The agreement in this case shall automatically cease to have effect on the following day in the event that the management of a pair of construction is normalization, in the event that the agreement in this case is reached between the two construction and the plaintiff as referred to below:

(Article 5). - - Grounds for deeming the management of a pair of construction to be normal: When the validity of this direct payment agreement is suspended upon the agreement of both construction and the plaintiff after completion of the measures for the normalization of the company.

D. Before the agreement of this case, construction by the method of issuing B2B electronic bills, the maturity of which is four months (five months from the date of issuance of tax invoices by subcontractors) from the date of issuance of bills to the subcontractors of the instant construction. However, the Plaintiff’s contract of this case from construction before the agreement of this case is reached.