1. Defendant A Co., Ltd. shall pay to the Plaintiff KRW 36,157,138 and its amount from December 5, 2015 to February 3, 2016.

. Conclusion of a contract between the Defendants

2.(4) The scope of the project shall be paid directly by the contractor as the material for the payment of the material for the contractor. * the ready-mixed and steel bars. The contractor shall calculate the quantity of the ready-mixed and steel bars at the time of the completion of the final design documentation and deduct it from the contractor’s progress payment.

On May 20, 201, Defendant Sam-gu Co., Ltd. (hereinafter “Defendant Sam-gu”) ordered Defendant A Co., Ltd. (hereinafter “Defendant A”) to undertake civil engineering works (hereinafter “instant construction works”) of the Busan-gu Seoul-gu Apartment Housing Co., Ltd. (hereinafter “instant apartment”) (hereinafter “instant apartment”) on the construction cost of KRW 1,676,282,365 (including value-added tax5, 282,365), May 20, 201, the date of commencement of construction, and November 30, 2012, the date of completion of construction shall be determined to be the following special specifications:

(hereinafter referred to as "the instant contract". On November 25, 201, Defendant Sambu changed the instant contract to KRW 2,006,322,40 (including value-added tax of KRW 6,322,400) by increasing the construction cost of each of the instant construction works, such as retaining walls, and ruptures, during the instant construction work between Defendant A and Defendant C.

(hereinafter “The First Amendment Agreement”). On February 3, 2012, Defendant Samsan increased the construction cost for the structure of the instant construction, such as retaining walls, among the instant construction works, between Defendant A and Defendant C, and revised the First Amendment Agreement to the construction cost of KRW 2,416,615,330 (including value-added tax 7,612,330) by newly establishing the legal surface protection work.

(hereinafter “instant secondary modified contract”). On October 30, 2012, Defendant Samsan revised the instant secondary modified contract to KRW 2,130,902,243 (including value-added tax 6,714,980) by adjusting only the unit price of the instant construction project, while maintaining each necessary volume of the instant construction project between Defendant A and Defendant A.

(hereinafter referred to as “the third modification contract of this case”). The defendant A and the plaintiff are involved.