1. The Plaintiff:

A. Defendant Il Young-young Co., Ltd., Han Young-gu Co., Ltd., Shin Dong-dong Construction Co., Ltd.

1. Basic facts

A. The relevant plaintiff is a project proprietor who newly built and sold the first apartment complex (a total of 2,040 households; hereinafter referred to as "the apartment complex in this case") located in Songdong-dong, Incheon, Dong-dong, Incheon, and Defendant New Airport Co., Ltd. (hereinafter referred to as "Defendant New Airport Co., Ltd.") is one of the new apartment construction works in this case (hereinafter referred to as "the instant construction works"), and Defendant Newdong Construction Co., Ltd. (hereinafter referred to as "Defendant New Airport Co., Ltd.") is a joint guarantor of the said Defendants, and Defendant Hyundai Industrial Development Co.,, Ltd. (hereinafter referred to as "Defendant Hyundai Industries Development") and Daewoo Motor Co.,, Ltd. (hereinafter referred to as "Defendant Hyundai Construction Co., Ltd.") are contracts for three of the instant construction works, and Defendant Handong Co., Ltd. (hereinafter referred to as "Defendant Construction Co., Ltd.") is a joint contractor of the instant construction works and Defendant Handong Co., Ltd. (hereinafter referred to as "Defendant Hanyang Electric Construction Co., Ltd.").

Defendant Construction Mutual Aid Association (hereinafter referred to as “Cable Construction”), Defendant Seoul Guarantee Insurance Co., Ltd. (hereinafter referred to as “Defendant Seoul Guarantee Insurance Co., Ltd.”) and Defendant Seoul Guarantee Insurance Co., Ltd. (hereinafter referred to as “Defendant Seoul Guarantee Insurance”), which have been awarded a contract for two sections among the instant construction works by Defendant Shin Young-young, Han-dong, Han-dong, Hyundai Industrial Development, Hanyang-yang, and the Plaintiff, are guaranteed each of the defect repair obligations of Defendant Masters.

B. The Plaintiff entered into a contract for construction works and a guarantee agreement between the Plaintiff and the Defendants (A) on November 2, 1999, and the Plaintiff entered into a contract for construction works and a guarantee agreement between the Plaintiff and the Defendants. The Plaintiff entered into a joint supply and demand agreement for construction works on November 2, 199 with Defendant Il Young-young, and Han-han, for the construction work of this case.