1. The Defendants are jointly and severally and severally liable to the Plaintiff for KRW 1,358,670,850 and KRW 1,337,374,117 among them.

1. Determination as to the cause of claim

A. 1) The Plaintiff is a company running a guarantee insurance business, etc. (2) The Plaintiff concluded a guarantee insurance contract with the Defendant Company A on January 7, 2010, with the following content.

The above guarantee insurance contract provides that the plaintiff shall compensate the defendant A Co., Ltd. and the insured Co., Ltd. for the damages incurred by the defendant A Co., Ltd., the insured, due to the failure to perform the payment obligation as specified in the following insurance contract, within the scope of the insurance coverage amount.

In the above guarantee insurance contract, the defendant A, the insured, bears the following obligations to the defendant A, the insured, and claims the amount equivalent to the obligation of the plaintiff as insurance money, and the plaintiff pays it to the plaintiff, the defendant A, the insurance contractor, paid the insurance money paid by the plaintiff and the overdue interest determined by the plaintiff from the day following the due date of the payment, and the damages for delay calculated by applying the changed overdue interest rate from the following day when there is a change in the interest rate of financial institutions.

(1) Amount of insurance coverage: 1,200,000 won. (2) The insurance coverage period: KT: from January 7, 2010 to January 6, 2012.