The defendant shall pay to the plaintiff KRW 1,475,643,942 as well as KRW 946,643,268 as to the plaintiff. From February 13, 2019 to August 27, 2020.

1. Basic facts

A. The status of the parties is the company that is engaged in the building construction business, etc. and received a contract from the foundation corporation C for the Goyang-gu Dental Corporation (hereinafter “instant construction business”). The defendant is a company that is engaged in the soil construction business or reinforced concrete construction business, which received a subcontract for the civil engineering work and reinforced concrete construction work among the instant construction work from the plaintiff.

B. On April 29, 2015, the Plaintiff entered into a subcontract between the Defendant and the Defendant for the Civil Works (hereinafter “instant Civil Works”) among the instant construction works.

during the construction period from April 30, 2015 to June 30, 2017, the construction amount of KRW 2,245,100,00 (including value-added tax; hereinafter the same shall apply)

(2) On September 8, 2015, the Plaintiff entered into a construction contract with the Defendant to subcontract the construction period to the Defendant, setting the construction amount of KRW 3,568,400,000 for the construction amount from September 19, 2015 to May 30, 2017.

(hereinafter referred to as "instant subcontract" in this case).

The conclusion of the instant modified contract and the preparation of the letter of performance of this case 1) In the event of the discontinuance of the instant subcontracted construction, the original Defendant changed the construction period from November 10, 2017 to November 30, 2017 with respect to the instant civil engineering works into KRW 3,477,00,000, and the construction amount is changed to KRW 3,477,000, and the construction period is changed to November 10, 2017 with respect to the instant steel works, from November 30, 2017 to November 30, 2017 (hereinafter “instant modified contract”). The contract under which the construction period is changed to KRW 4,693,00,000 (hereinafter “instant contract”).

2) Upon entering into the instant amendment agreement, the Defendant prepared and ordered the Plaintiff to execute the following terms and conditions (hereinafter “instant performance note”).

upon the resumption of a project.