A. From July 27, 2011 to February 27, 2017, the Plaintiff engaged in manufacturing, selling, etc. of the functional natural substances sanction was engaged in the transaction of selling environment-friendly organic fertilizers, etc. to the Defendant, who engages in the wholesale, retail, etc. of fertilizers.

The Plaintiff supplied the Defendant with the total of KRW 37,471,430 from July 27, 2011 to December 28, 2011, and KRW 255,667,643, total of KRW 293,073 from January 20, 201 to February 27, 2017, and received payment from the Defendant in total of KRW 261,78,780.

B. Determination 1) The balance of the amount paid: 31,350,293 won 293,139,073 won - 261,78,780 won = 31,350,293 won - 1,350,293 won : 00 won - 660,000 won - 1,350 won - 1,350,293

3) The balance of sales incentives (deduction amount): From February 8, 2017 to October 26, 2017, the following day after the delivery of the original copy of the instant payment order sought by the Plaintiff is clearly recorded, the Defendant is obligated to pay 7,161,000 won per 7,700 won per annum pursuant to the product sale and promotion contract (Evidence A (Evidence A 1) in the total sales incentive amounting to KRW 2,687,750.

2. The Defendant alleged that the Plaintiff suffered damages, such as failure to pay the purchase price, due to the defect in the Plaintiff’s product, on December 7, 2016 and December 19, 2016, but the objective evidence to acknowledge this.