A. On January 16, 2006, Plaintiff A Co., Ltd. (hereinafter “A”), Plaintiff B Co., Ltd. (formerly changed: C Co., Ltd.; hereinafter “B”), and F Co., Ltd. concluded the instant contract on January 16, 2006 with respect to the construction of the joint contractors (representative: Plaintiff A) for the Defendant and local highway G Road D D D D Road (hereinafter “instant construction”).

[Standard Contract for Construction Works] Contract Amount of KRW 8,872,23,000 for delay amount of KRW 170,665,00 for the total period of construction works: 0.1% on the date of commencement of construction works; 0.1% on January 19, 2006; and 48 months on April 18, 2006 on the date of completion (Provided, That total period of construction: 48 months on April 18, 2010): Documents of tender for construction, general conditions of construction contracts, special conditions of construction contracts, design and calculation sheets;

B. The instant contract was concluded several times as indicated below with the overall contract and each of the following contracts.

. General contract; 2. On January 16, 2006, the first 200. 8, 200. 8, 200. 8, 206. 8, 200,000 or 18. 5. 6. 6. 6. 6. 0,000,000 on December 18, 200, 207; 4. 6. 6. 0,06,06,000 for first 6. 20,000,000 on June 28, 2009; 3. 6. 0,06,000,000,000 on the 20. 6. 8. 1, 206,06,000,000 (the amount of price fluctuation, 18,000,000) on the 16. 1,010