1. As to KRW 309,550,725 and KRW 161,325,725 of the above money and the above money, the Defendant shall start on December 27, 2012, and 148,225 of the said money to the Plaintiff.

1. Basic facts

A. Under the trade name B of each of the instant construction contracts, the Plaintiff engaged in the steel structure manufacturing business, etc. was awarded a subcontract for the following three construction works (hereinafter “each of the instant construction contracts”) from the Defendant engaging in the industry boiler manufacturing business, etc.

① The contract of August 9, 2012 (hereinafter referred to as “first construction contract”): The part of “C” of the “C” contracted by the Defendant, “C,” which is part of the “C,” the part of the “C,” “C,” which is part of the “C,” which is part of the “C,” the construction period from August 6, 2012 to September 30, 2012, the construction period of which is KRW 140,800,000 (including value-added tax and the construction price of which is paid in cash, KRW 20% of the remainder shall be paid in cash, and KRW 80% of the total construction price shall be the remainder after completion of construction, and KRW 9,00 of the remainder shall be the sewage grade ② the contract of August 10, 2012 (hereinafter referred to as “second construction contract”): The Defendant contracted to the “C”.

I. The construction period portion of DF UPLING COLING WAER Pipelines (Removal and installation) shall be from August 10, 2012 to September 10, 2012; the construction cost of 51,700,000 won (including value-added tax, and 20% of the construction cost shall be paid in cash, and the remainder of 80% shall be paid in cash, and the balance of 90 days shall be paid in 90 days after completion of the construction) shall be determined as contract for the contract dated August 29, 2012 (hereinafter referred to as “third construction contract”): The Defendant shall pay the remainder of the construction price of the D Young SB BB BB “D 5, 6 boiler” to the D Co., Ltd. (hereinafter referred to as “D”), and the Defendant shall pay the remainder of the construction price at the rate of 10%,000 won per annum from August 23, 2012 to 31, 2013.

B. The Plaintiff’s performance of subcontracted construction works completed subcontracted construction works under the construction contract Nos. 1 and 2 by September 26, 2012, and the subcontracted construction works under the construction contract No. 3 were conducted on January 14, 2013.