1. For the plaintiffs:

A. As regards Defendant C Co., Ltd, 100,314,845 won and 64,492,160 won among them, from August 5, 2017.

1. Basic facts

A. Plaintiff A Co., Ltd. (hereinafter “Plaintiff A”) and Plaintiff B Co., Ltd. (hereinafter “Plaintiff B”) were jointly awarded a contract with the Gyeonggi-do Office of Education of Gyeonggi-do for the Construction of Teachers’ Building in the F School in the Diasung City E (hereinafter “instant Construction”).

Plaintiff

A is the representative of the consortium.

B. On February 22, 2016, the Plaintiffs agreed to Defendant C Co., Ltd. (hereinafter “Defendant C”) with the construction period fixed as KRW 51,119,800 for the construction cost (including value-added tax) from February 22, 2016 to January 13, 2017 during the construction period of incidental civil engineering works (hereinafter “instant construction works”).

(hereinafter “instant contract”). C.

The main contents of the instant contract are as follows.

(2) Where it is necessary to adjust subcontract consideration due to changes in the details of construction, construction period, construction volume, etc. due to any change in the contract, the principal contractor and the subcontractor shall reasonably adjust subcontract consideration due to any change in the terms of the contract.

Provided, That the original business operator shall settle and pay the part already performed by the subcontractor before the details of construction are changed.

Article 3 (Additional Works) (3) With respect to any construction work additionally executed by a subcontractor under the instruction of a principal contractor, the principal contractor shall have failed to increase from the ordering person

Even if the subcontractor is increased, it shall be paid to the subcontractor.

(2) The principal contractor shall provide the subcontractor with the cooperation and support necessary for the execution of this project, such as informing the subcontractor of the current status of the object of the project so that the subcontractor may execute the project in compliance with the construction-related statutes, such as the Framework Act on the Construction Industry

Article 18 (Prohibition, etc. of Forced Purchase) (1) No principal contractor shall require a subcontractor to purchase or use (including utilization; hereinafter the same shall apply) any goods, equipment, or services he/she designates.

(b).