1. All of the plaintiffs' claims are dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

1. Basic facts

A. 1) The Plaintiffs constituting a joint venture with the Defendant and C Corporation (hereinafter “instant construction”) on December 23, 2004, constituting joint ventures under the joint venture method.

As to the instant contract, the overall and the instant contract for a long-term continuing contract (hereinafter “instant contract”) shall be deemed as the overall and the instant contract for a short-term continuing contract; and if it is necessary to distinguish the overall and the instant contract from the multiple contracts, it shall be deemed as the instant overall contract and the instant multiple contracts.

The contract amount is as follows. The contract amount: 84,480,000,000 won for total construction period: 84,480,000,000 won for total construction period: The total construction completion period until December 31, 2004: 60 months from the commencement date of the construction (from December 23, 2004 to December 22, 2009) and thereafter, the Plaintiffs entered into a contract with the Defendant by the number of vehicles as described below.

"The increased construction price on December 23, 2004 - December 2004 - December 23, 2004 - December 20, 2005 - December 15, 2005 - "the increased construction price on December 20, 2005" on December 20, 2005 - The 2-12. 206. 20. 8. 206. 20. 20. 206. 20. 20. 206. 20. 20. 206. 20. 206. 20. 206. 20. 207. 206. 20. 206. 20. 15. 207. 206. 20. 206. 3. 20. 206. 21. 20. 20. 7.

B. On December 17, 2009, the Plaintiffs to change the method of contract and extend the period of construction are continuing expenditure contracts in the initial long-term continuing contract, under which the contract was concluded with the Defendant regarding the instant construction.