1. Of the instant lawsuit, the part of the claim against Defendant Pung Forest Industry Co., Ltd. and Sungsung Construction Co., Ltd., respectively.

1. Facts of recognition;

A. 1) The Korea National Housing Corporation shall enter into a contract and a joint supply and demand agreement. The Korea National Housing Corporation shall have 332 units, six apartment complexes, 332 units, Dong-dong, 332 apartment complexes, located in the Greenyang-dong 405, Jungyang-dong.

A) A newly built executor and sold in lots. On October 1, 2009, the Plaintiff comprehensively succeeded to the property, claims, and other rights and obligations of the Korea National Housing Corporation (hereinafter referred to as “Plaintiff”) pursuant to Article 8(1) of the Addenda to the Korea National Housing Corporation (amended by Act No. 9706, May 22, 2009) as a public corporation established following the merger between the Korea National Housing Corporation and the Korea Land Corporation (hereinafter referred to as “Korea National Housing Corporation”).

(2) On August 31, 2005, the Plaintiff entered into a contract under which Defendant Sylim Construction Co., Ltd. (hereinafter “Defendant Sylim Industry”), Defendant Handong Construction Co., Ltd. (hereinafter “Defendant Handong Construction”), and the construction cost is KRW 24,93,604,00 (hereinafter “instant construction contract”) for the construction, machinery, and civil engineering works (hereinafter “instant construction works”) among the instant apartment construction works, under the joint and several guarantee of Defendant Sylim Construction Co., Ltd. (the former contract is a new construction company; hereinafter “Defendant Sylim Construction”).

3) As to the instant contract, Defendant Pung Forest Industry and Defendant Handong Construction jointly and severally liable for the obligations under the instant contract, but the joint supply and demand agreement with the content that the ratio of investment shall be 70% for Defendant Pung Forest Industry and 30% for Defendant Handong Construction (hereinafter “instant joint supply and demand agreement”).

B) On April 28, 2008, the Defendant Construction Mutual Aid Association (hereinafter “Defendant Mutual Aid Association”) entered into a contract for the repair of defects (hereinafter “instant First Guarantee Contract”) with respect to the supply and demand ratio (70%) of the Defendant Pung Forest Industry among the construction works in the instant case between Defendant Pung Forest Industry and the Defendant Pung Forest Industry as follows:

(j) No guarantee number year;