On December 16, 2004, the Plaintiffs, a joint contractor, concluded a construction contract with the Defendant for the construction work for the river repair work in the Nakdongdong River Area (hereinafter “instant construction work”) with regard to the total construction period for the river repair work in the Nakdongdong River Area (hereinafter “instant construction work”) with the head of the Busan Regional Land Management Office as an end-user institution. < Amended by Act No. 27,123,406,000, the contract amount of the first construction work, the total construction period of KRW 20,000,000, 1800, and December 21, 2004, from December 21, 2004 to December 31, 2004 (hereinafter “instant contract”).

The terms and conditions of the construction contract included in the instant contract are as follows.

Article 23 (Adjustment of Contract Amount Due to Amendment to Terms and Conditions of Contract) (1) Where it is necessary to adjust the contract amount due to a change in the terms and conditions of contract, such as a change in the construction period, distance, etc., in addition to cases pursuant to Articles 20 and 22, a contracting officer shall adjust the contract amount within the extent not exceeding actual expenses according

(2) Any alteration of the contents of contract pursuant to paragraph (1) shall be completed before commencing the implementation of the changed portions.

If it is necessary to urgently perform a contract due to a delay in performing the contract that is likely to cause a deterioration in quality or otherwise, the public official in charge of contracts may specify the timing, etc. of amendment to the terms and conditions of the contract after consultation with the other party to the contract and may require

(3) Article 20 (4) shall apply mutatis mutandis to paragraph (1).

(4) In the case of paragraph (1), if the contract price is increased, it shall be adjusted upon request of the other party.

(5) The provisions of Article 20 (7) and (8) shall apply mutatis mutandis to the adjustment of contract amount under paragraphs (1) through (4).

Article 25 (Compensation for Delay) (3) A contracting officer shall not include the relevant number of days in the number of days in paragraph (1) if he/she deems that the Corporation has delayed because it falls under any of the following subparagraphs: