1. The Defendant’s KRW 150,053,075 for the Plaintiff and KRW 6% per annum from December 16, 2016 to December 15, 2017.

1. Facts of recognition;

A. (1) The Plaintiff is a company established for the purpose of construction contract construction business, etc., and the Defendant is a company established for the purpose of the steel construction business and technology service business.

(2) From the Defendant, the Plaintiff re-subcontracted each of the said works (hereinafter referred to as the “J”) from among the “Seoul D Facility Construction Works” (hereinafter referred to as the “D Facility Construction”), “E New Construction Work” (hereinafter referred to as the “E”), “F Construction Work” (hereinafter referred to as the “H”) subcontracted by G Co., Ltd. (hereinafter referred to as the “I”), and the J Extension Works subcontracted by G Co., Ltd. (hereinafter referred to as the “J”).

B. The content and progress of each of the instant construction works: (a) Defendant D Facility Corporation (including value-added tax); (b) KRW 286,00,00 from September 11, 2014 to December 30, 2012; (c) KRW 354,063,60 (i) the amount received by the Plaintiff’s direct payment of KRW 332,779,60; (d) KRW 21,284,00 from August 2014 to June 2015; (e) KRW 261,80,80, KRW 373,179,836 (including value-added tax); (e) the amount received by the Plaintiff from Defendant D Facility Corporation 2 to KRW 331,613,00; and (e) the amount received from the Plaintiff from Defendant 205 to May 20, 2015; and (e) the amount received from Defendant 2636,506,705,7.7

2. The assertion and judgment

A. The plaintiff asserted that the construction work of this case goes beyond the scope of the construction originally agreed upon with the defendant with respect to each of the construction works of this case, and thus, the plaintiff included the following additional construction costs to the defendant: