1. The Defendants jointly and severally liable to the Plaintiff KRW 46,979,511 and Defendant A with respect thereto from October 19, 2017; and Defendant B from October 2017.

Comprehensively taking account of the respective descriptions in Gap evidence Nos. 1 and 4 (including each number), and the overall purport of the pleadings, it is recognized that the plaintiff supplied goods such as ducts to the defendant who runs a construction business with the trade name of "C", that the defendant Gap's obligation to pay for the goods unpaid to the plaintiff of the defendant A reaches KRW 46,979,511 as of December 4, 2012, and that the defendant Eul guaranteed the defendant Eul's obligation to pay for the goods above on December 4, 2012.

Comprehensively taking account of the above facts, the obligor for goods prices and the Defendants, as joint and several sureties, are jointly and severally liable to pay to the Plaintiff the amount of KRW 46,979,511 payable and the damages for delay calculated by the rate of 15% per annum under the Act on Special Cases Concerning the Promotion, etc. of Legal Proceedings from October 19, 2017 to the date of receiving a copy of each of the complaint of this case, and from November 21, 2017 to the date of full payment.

The plaintiff's claim is reasonable, and it is so decided as per Disposition.