1. The defendant's appeal is dismissed.

2. The defendant bears the total costs of the lawsuit after the filing of the appeal.

purport, purport, and.

Basic Facts

A. Each performance guarantee insurance contract and joint and several sureties 1) The Plaintiff is a stock company E (hereinafter “E”).

B) As regards E’s obligation to return advance payment for goods to E, a performance guarantee insurance contract (hereinafter “instant 1 surety insurance contract”) with the following content:

D) signed the F Co., Ltd. F (hereinafter “F”).

), C, G과 함께 위 이행보증보험계약에 기한 E의 원고에 대한 채무를 연대보증하였다. 보험계약일 피보험자 보험가입금액 (단위:원) 보험기간 제1보증보험 2013. 4. 15. ㈜메디프론디비티 300,000,000 2013. 4. 15. ~2013. 12. 27. 제2보증보험 2013. 4. 16. ㈜넥스온일렉트로닉스코리아 300,000,000 2013. 4. 16. ~2013. 6. 14. 제3보증보험 2013. 4. 26. ㈜유겐트 300,000,000 2013. 4. 26. ~2013. 5. 27. 2) 원고는 F와 사이에, F의 피보험자들에 대한 상품대금 선급금 반환채무에 대하여 다음과 같은 내용의 이행보증보험계약(이하 ‘이 사건 제2보증보험계약’이라 한다)을 체결하였다.

D, together with H, I, J, and G, jointly and severally guaranteed the F's obligation to the Plaintiff based on the performance guarantee insurance contract.

Each guarantee insurance contract of this case, on March 11, 2013, the insurance period of the insured as of the date of the insurance contract (unit: KRW 400,000,000,00 on March 11, 2013 to March 10, 2014, No. 500,000,000 No. 400, April 16, 2013 to December 27, 2013, provides for the plaintiff's right of prior reimbursement as follows: ① The principal and the guarantor bear the obligation to repay the debt to the company, and promptly repay the debt amount to the guarantor and the company without prior notice or peremptory notice (hereinafter referred to as "pre-payment claim"). In such cases, the principal and the guarantor shall exercise the right of prior reimbursement (hereinafter referred to as "pre-payment claim") as follows:

subsection (b) of this section.