A. The Plaintiff is an individual entrepreneur who is engaged in light of the trade name “C” with her husband, such as light-weight steel frame, prefabricated-type construction business, and steel-frame construction material manufacturing business.

B. The Defendant Company owns a factory (hereinafter “Gumi-si”) in Gumi-si D with a business entity operating solar power generation projects, etc.

(c)

On January 21, 2019, the Plaintiff entered into a contract with the Defendant Company for construction works related to the old factory (hereinafter “instant construction contract”).

(d)

In the standard contract for private construction works (hereinafter “instant contract for construction works”) created at the time of entering into the instant contract, the construction name “the roof blades and water ridges construction”; the date of commencement “ January 21, 2019”; the date of completion is “3.” The contract amount is “310,280,000 won, including additional taxes”; the contract amount is “310,280,000 won,” and other matters are “compliance with estimates”; and there is a statement that “other construction works shall be separate” in the form of the lower part.

E. Prior to the conclusion of the instant construction contract, a written estimate (No. 2) presented by the Plaintiff to the Defendant Company prior to the conclusion of the instant construction contract is written on the roof knife steel board and the material stude, bomb, expenses, etc. for the replacement of the water base of the Switzerland, and the total construction cost is KRW 282,080,40,000, and the additional tax is separate.

F. From the date of the conclusion of the instant construction contract, the Plaintiff commenced construction work to replace the roof of the Gumigal factory with the knife bar, and completed the horse around March 2019.

G. The defendant company awarded a contract to the non-party E for construction necessary for solar power development on the roof of the old pre-factory, and the construction was required to reinforce the roof, and the construction was ordered to do so to the plaintiff.

For this reason, the plaintiff and the defendant are above.