The Plaintiff is a company engaged in steel products wholesale and retail business, and C is a company engaged in steel products wholesale and retail business, and the Defendant is registered as the auditor of the non-party company.

B. On August 18, 2017, the Plaintiff: (a) supplied steel materials to the non-party company; and (b) concluded a goods supply contract with the non-party company to receive interest at a rate of 6% per annum from the non-party company by the end of the following month; and (c) the Defendant guaranteed the non-party company to jointly pay the price for the goods to the plaintiff.

C. After entering into the instant goods supply contract, the Plaintiff supplied steel to Nonparty Company by October 31, 2018, but did not receive KRW 72,965,604 out of the price of the goods supplied.

2. According to the above facts of determination, the defendant, as a joint guarantor of the non-party company's debt for the payment of goods to the plaintiff, is obligated to pay to the plaintiff 72,965,604 won for the goods unpaid to the plaintiff and the damages for delay calculated at the rate of 12% per annum per annum under the agreement interest rate from December 1, 2018 to June 23, 2019, which is obvious from the date following the end of the next month of the final supply date ( October 31, 2018) which is the due date for the payment of the payment order in this case, to the date of delivery of the original copy of the payment order in this case to the defendant.

The defendant's assertion that there is no sufficient means to repay this, is rejected as it is not a legal ground for preventing or rejecting the plaintiff's claim.

3. Conclusion, the plaintiff's claim is justified.