A. Plaintiff 1) The 2015 Construction Work (hereinafter “instant First Construction Work”)

(1) On October 8, 2015, the Defendant filed a claim for the purchase price with the Plaintiff, which was operated by the Defendant, for the purpose of the Defendant’s factory C (hereinafter “instant factory”).

(3) While the Plaintiff was awarded a contract for the construction work of 39,80,000 won for the above construction work, 11,930,000 won for down payment and part payment (including value-added tax) were paid to the Plaintiff on October 4, 2018, 112,096,00 won for the total construction cost of 10,000 won for the above construction work (34,100,000,000 won for the above construction work, 10,000 won for the above construction work, 200,000 won for the ex-10,000 won for the ex-10,000 won for the ex-10,000 won for the ex-10,000 won for the ex-10,000 won for the ex-20,000 won for the ex-16,000 won for the ex-20,000 won for the ex-106,0000 won for the construction cost for the ex-10