A. C Co., Ltd. (hereinafter “C”) concluded a construction contract with the F Co., Ltd. Co., Ltd. (hereinafter “F”) on September 19, 2006 with respect to the construction work of Jung-gu, Daejeon (hereinafter “instant new construction work”) at KRW 10,518,530,205, with the construction cost as KRW 10,518,530,205, after the trade name was changed to D Co., Ltd. on July 15, 2009.

B. As F was unable to receive the construction cost properly from C, around March 3, 2008, the new construction of the instant apartment was suspended, and around October 5, 2008, the said construction was waived.

C. On March 20, 2008, C entered into a contract with the Defendant for construction works with the cost of construction KRW 6 billion for the instant newly constructed apartment, and in relation to the said construction works, C changed the construction period from October 2008 to March 2009 to the Defendant and the construction cost (the construction cost) to the Jung-gu Office of Daejeon with regard to the said construction works.

On October 2, 2008, the Plaintiff entered into a subcontract with the Defendant and the instant apartment construction (hereinafter referred to as “instant apartment construction”) with respect to the construction cost of KRW 1 billion (excluding value-added tax), from October 3, 2008 to March 31, 2009, with respect to the construction cost of KRW 1 billion (hereinafter referred to as “instant apartment construction”) from among the new construction works of the instant apartment, and continued the said construction work on December 10, 2008 on the wind that the Defendant could no longer proceed with new construction works.

E. After that, on May 20, 2009, C entered into a new construction contract with G Co., Ltd. (hereinafter “G”) on the construction of the instant apartment, with the construction cost of KRW 5.65 billion, and revised the construction contract to G, and the construction period from June 2009 to March 201, 2010.

F. On October 28, 2009, the Plaintiff’s suspension of G, a new contractor, and the instant facility works, as seen above.