1. The Defendant: (a) KRW 30,957,00 for the Plaintiff’s Green Industry Development Co., Ltd. and its related thereto, from March 27, 2014 to March 20, 2015.

1. Basic facts

A. Status 1) Plaintiff Green Industry Development Co., Ltd. (hereinafter “Plaintiff Green Industry”)

) The company is a company that performs the Changho Construction Work. Plaintiff Doil Co., Ltd. (hereinafter “Plaintiff Doil”).

)은 전기공사 등을 하는 회사로서, 주식회사 도일전력이 2012. 9. 17. 유한회사 대원전기와 합병하며 해산하고, 위 유한회사 대원전기가 2013. 8. 13. 원고 도일로 조직을 변경하였다. 2) 피고 주식회사 모두원건설(이하 ‘피고 회사’라 한다)은 주택건설 및 분양 등을 하는 회사로서 2010. 11. 23. 건설사업부문을 분할하여 제이제이건설 주식회사를 설립하였고, 2012. 6. 1. 토목건축공사업 등을 분할하여 주식회사 엠디건설을 설립하였다.

B. The Plaintiff’s Green Industry’s contractual relationship 1) The Plaintiff’s Green Industry is an apartment A (hereinafter “instant apartment”) between the Defendant Company and December 7, 2011.

(ii) On September 28, 2012, the Plaintiff Green Industry and the Defendant Company (the title is MD Construction Co., Ltd., but the substantial party is the Defendant Company; hereinafter the same shall apply) entered into a subcontract agreement with respect to metal, windows, steel and other works, the total contract amount of which was KRW 1,000,000,000, and the construction period was extended by October 31, 2012.

3) The Plaintiff’s Green Industry completed the construction work under the said subcontract, and received KRW 963,09,000 out of the said contract amount from the Defendant Company. (c) Plaintiff Do Governor’s contractual relationship 1) September 23, 2011, with respect to the electric and telecommunication facilities among the new apartment construction works in the instant apartment complex between the Defendant Company and the Defendant Company, the contract amount of KRW 1,065,000,000, and the construction period from September 23, 2011 to October 2012.