Defendant’s KRW 5,674,759,849 and KRW 201,00 among the Plaintiff’s KRW 5,674,759 and KRW 5,473,759,849.

Basic facts, on November 21, 2002, the Public Procurement Service, as an affiliated agency of the Defendant, made a public announcement of tender by means of a bid for a long-term continuing construction period of 101,017,00,000 won (including value-added tax) and a construction period of 1,800 days after the commencement of the construction, with regard to D construction works with the content that the total extension of 6.41km and the width of 20 meters is expanded and packed by the road between B and C (hereinafter “instant construction works”).

The plaintiff, E, F, G, and H (hereinafter referred to as the "Plaintiff, etc.") constituted a joint supply and demand organization representing the plaintiff (hereinafter referred to as the "joint supply and demand organization of this case") and awarded the contract for the construction of this case on December 30, 2002. On December 30, 2002, the construction cost for the construction of this case was KRW 78,858,000,000 with the defendant (demanding Agency: Busan Regional Land Management Agency) through the Public Procurement Service, and the construction period was from December 30, 2002 to December 1800 after the commencement date (hereinafter referred to as the "contract of this case"). At that time, the contract of this case was commenced at that time.

The main contents of the general terms of the instant contract (hereinafter “instant general terms”) are as specified in the general terms (main terms) of the instant contract.

The modification of the instant contract and the completion of the instant contract were concluded in the form of a long-term continuing construction contract (the total construction amount determined by a successful bidder, etc. shall be additionally stated, and each lot of contracts shall be entered into within the scope of the budget of the pertinent year). Each modification contract has been concluded several times thereafter. The details of the initial contract and each change have been stated in the overall contract and each lot of contracts, as shown in the details of the changes in the overall contract and each lot of contracts.

According to the sequence below, the number of contracts are "the next multiple contracts" and the overall contract and the subsequent multiple contracts are "the next modified contract", and the overall contract are "the next modified contract."