1. The Plaintiff, Defendant Gold-si Corporation, 232,313,946 won in case of Defendant Gold-si Corporation, and Defendant East-dong Development Co., Ltd., is the Defendant Gold-si.

1. Basic facts

A. On March 2009, both the two-way Construction Co., Ltd. (hereinafter referred to as “balm construction”), the Defendants, and the Gyeongnam Enterprise Co., Ltd. (hereinafter referred to as “Gyeongnam Enterprise”) constituted a joint supply and demand organization (hereinafter referred to as “instant joint supply and demand organization”) as a representative of the two-way construction. The Incheon Metropolitan City Urban Railroad Headquarters (hereinafter referred to as the “Seoul Urban Railroad Headquarters”) entered into a joint supply and demand agreement with respect to the construction works ordered by the Incheon Urban Railroad 2-line 202 Section (hereinafter referred to as the “instant construction”) (hereinafter referred to as the “instant agreement”), and drafted a joint supply and demand agreement with the following contents.

The name of the project owner of the United States and the name of the project owner of the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States and the United States.

Article 3 (Members of Joint Supply and Demand Body) ① The name of the Joint Supply and Demand Agency performing the Construction Works shall be [the Incheon Urban Railroad 2, 202 Construction Works] Joint Supply and Demand Agency (hereinafter referred to as the "Joint Supply and Demand Agency").

(2) The members of a joint contractor and the ratio of shares shall be as follows:

1. Construction for pairs: 36%;

2. South-North enterprises: 34 percent.

3. Defendant Gold Mining Corporation (hereinafter “Defendant Gold Mining Corporation”): 20%

4. Defendant Dong-dong Development Co., Ltd. (hereinafter referred to as “Defendant Dong-dong Development”): 10% (the authority of representative and representative of joint contractors) Article 4 (the authority of representative and representative of joint contractors) (1) Of the constituent members, the representative shall be the construction for pairs, and the constituent members except the representative shall be members.

(3) The representative shall represent the joint contractors and third parties, and have the authority, such as a request for construction cost and the management of the property of the joint contractors until the fulfillment of the obligations of this project is completed.

(4) With respect to the execution of this project, the representative shall: