1. On the Plaintiff (Counterclaim Defendant),

A. The Defendant-Counterclaim Plaintiff (Counterclaim Plaintiff) amounting to KRW 535,911,060 and the amount pertaining thereto from January 10, 2013 to January 10, 2015.

A principal lawsuit and a counterclaim shall be deemed simultaneously.

1. Basic facts

A. On October 10, 201, the Plaintiff entered into the instant construction contract with the Defendant Company and the Daejeon Dong-gu Seoul Special Metropolitan City Construction Project (hereinafter “instant construction project”). Around that time, the Plaintiff paid the Defendant Company KRW 291,00,000,000 in advance (hereinafter “instant construction contract”).

[Standard Contract Period for Private Construction Works: Contract amount of KRW 2,907,630,00 (including value-added tax): Contract amount of KRW 10% advance payment: Amount of KRW 291,00,000 (including value-added tax): Rate of liquidated damages for delay once a month (see matters of special agreement): 1/100 [General Conditions of Standard Contract for Private Construction Works].

B. On October 11, 201, the Defendant Company entered into an advance payment performance guarantee contract with the Defendant Union as “291,00,000 won, and the guarantee period from October 12, 201 to June 30, 2012,” each of the two guarantee contracts with the term “290,763,000 won, and the guarantee period from October 10, 201 to June 30, 201,” and issued to the Plaintiff each of the above guarantee contracts with the Defendant Union with the term “29,763,000 won,” and the guarantee period from October 10 to June 30, 2011.

C. The Defendant Company, including the modification of the instant construction contract, failed to complete the instant construction work by the date of completion stipulated in the instant construction contract, and the Plaintiff and the Defendant Company entered into a contract that changed the date of completion of the instant construction work to December 31, 2012, and the Defendant Company and the Defendant Partnership entered into a contract that changed the guarantee period of each of the instant guarantee contracts to “ December 31, 2012.”

After the discontinuance of the construction of this case and the plaintiff's notice of termination, the defendant company was the defendant company around November 8, 2012.