1. The plaintiff's claim is dismissed.

2. The costs of lawsuit shall be borne by the Plaintiff.

1. Basic facts

A. 1) The defendant is the party to the dispute. The construction works of the 4th cycle road (and between merchants) and the 2-2 sections of the 2-2 sections of the 2nd execution zone among the "Construction works of the 4th cycle road (and between merchants)" from the Daegu Southern Metropolitan City Metropolitan City Metropolitan Circulation Road," and the "Construction Works of the 2-2 sections of the 2nd execution zone" (hereinafter the above construction works are referred to as the "construction Works of the 1st execution zone" and the "Construction Works

(2) The Plaintiff is a company that received a subcontract with the Defendant solely or jointly for each of the instant construction works.

B. 1) On January 2, 2009, the Plaintiff, along with the Youngjin Construction Co., Ltd., was awarded a subcontract with the Defendant for the instant construction section 1 from January 2, 2009, with the construction cost of KRW 30,250,00,000, and the construction period from January 2, 2009 to October 31, 2012.

2) On September 7, 2009, the Plaintiff was awarded a subcontract for the instant 2-2 construction works from the Defendant for the period from September 7, 2009 to September 30, 2012, with the construction cost of KRW 23,786,793,800, and with the construction period of KRW 7, 209 to September 30, 2012.

3. Each of the above construction contracts was modified after two or three times as follows, and the content of each of the construction contracts was modified on December 21, 2012, and finally, on December 21, 2012, the instant construction contract was amended by 44,97,900,000 won in the construction cost, and the instant 2-2 construction project was amended by 28,710,647,90 won in the construction cost, and the expiration date of the construction period of each of the above construction works until February 15, 2013.

Until December 23, 2012, 201, December 21, 2012, 2012, the changed construction period of one Section for the changed construction period of the changed construction date, as of January 19, 2012, shall be 25,879,907,900 won until February 15, 2013, no later than December 23, 2012, from construction works of 2-2 Section for the changed construction period of two sections until February 15, 2013.

C. One plaintiff, including disputes over the construction cost and arbitration award, demanded the defendant to increase the construction cost in addition to the construction cost under the modified contract as above, but the defendant rejected it and the defendant.