1. As to the Plaintiff (Counterclaim Defendant)’s KRW 592,635,318 among the Plaintiff’s counterclaim and KRW 286,102,113 among the Plaintiff’s counterclaim, the Defendant (Counterclaim Defendant)’s KRW 592,635,318.

A principal lawsuit and a counterclaim shall be deemed simultaneously.

1. Basic facts

(1) Each of the instant construction contracts, etc. 1) The Defendant, as a contractor for construction of Zone 1 2 of the 2nd administrative city office building in Chungcheongnam-gun, Chungcheongnam-gun, was given a public announcement of tender on January 201 to subcontract reinforced concrete construction works among the said construction works: The bidding date: the contract period of each construction section and the estimated price of No. 1-1 construction sections on January 18, 201: the estimated price of No. 8,792, 132, 455 Won-2 Section 1-2 Section: From 10 to 31 October 31, 2011; the contract period of each of the construction sections (from 1,235,068, 724 won to 20: 10,000 won to 10,000 won to 20,000 won to 10,010,000 won to 20,000 won to 18,01.

3) Article 6 (Contract Documents) (1) of the General Terms and Conditions, which are the contents of each of the instant construction contracts (Evidence No. 1-3) and the construction specifications (Evidence No. 1-4), are as follows. The contract documents are prepared and sent electronically by information and communications systems, such as contract documents, design documents (design drawings, specifications, construction volume calculation statement, construction work volume calculation statement, tender report, construction contract terms and conditions, general terms and conditions, special terms and conditions, calculation sheets, computer designated by the contractor, etc.