A. The plaintiff's assertion is that the plaintiff himself is a person who runs the wholesale business of building materials, etc., the defendant is a person who runs the livestock shed manufacturing business, the livestock shed installation and construction business, etc., and around March 2013, the defendant concluded a subcontract for the electrical construction of "C" in Yongcheon-si B and concluded the above construction work with the defendant and completed the above construction work, and the construction cost arising therefrom is KRW 148,712,200 (excluding value-added tax). In addition, in relation to this, the plaintiff asserts that the additional construction work of the water pipe (a cable and cable), ② the water charging equipment (c) 1,22, 2, 8, 8, electrical construction (ac) 27,807,200, 2000, 307, 2005, 207, 2007, 2004, 2007, 2007, 2007, 2007, 2007

[Plaintiff alleged that KRW 152,60,000, out of the initial construction cost of KRW 167,39,99,990, the Plaintiff claimed that the payment of KRW 14,80,000 was made, and agreed on KRW 148,712,200, including pure goods costs and personnel expenses that limit the payment of KRW 148,712,200, and the additional construction cost of KRW 27,807,200 was incurred. Of the additional construction cost of KRW 14,80,000, the Plaintiff did not receive KRW 27,800,000, out of the additional construction cost of KRW 13,800,000, among the construction cost of KRW 13,800,000; thereafter, the Plaintiff subsequently changed its assertion as above].

As to the defendant's assertion, the defendant presented the first 148,712,200 won for the above subcontracted works, but eventually, the defendant's request reflected the defendant's request and agreed to separately decide value-added tax. Among the above additional works claimed by the plaintiff, there was an agreement to separately decide on value-added tax. Among the above additional works claimed by the plaintiff, the sum of the above 1 and 3 items is 9,068.