1. The Defendant’s KRW 15,529,396 as well as the Plaintiff’s annual rate from March 8, 2014 to November 25, 2015.

Facts of recognition

On September 2012, the Defendant awarded a contract to B for the construction of multi-family houses (hereinafter “instant construction”) with the content that the construction cost shall be KRW 512 million on the land of Sejong Special Self-Governing City, but all the construction cost, such as construction design cost and civil engineering design cost, shall be included in the construction cost, and around that time, each multi-family house was newly built even on the land D, E, or 4 (hereinafter “D, and other third parcel construction site”).

The Plaintiff entered into a contract with B to supply ready-mixeds to be used at the construction site of this case, and supplied ready-mixeds at each of the above construction sites from around 2013 to around 2013.

On the other hand, the defendant around January 14, 2013, via B, signed the following order form (the document No. 1, the defendant signed the defendant's name and the defendant's side on the order form "the order form". Since the authenticity of the above order form is denied, it is presumed that a private document is authentic when it is signed or sealed by the principal pursuant to Article 358 of the Civil Procedure Act. According to the appraiser F's written appraisal, according to the appraiser F's written appraisal, it can be recognized that the defendant's signature of "the order form" is the defendant, and the authenticity of the above order form is recognized; hereinafter "the order form of this case").

The name of the product: The unit price of ready-mixed (Standard 25-21-120) : 60,000 won per cubic metres: The name of the site and the name of the construction project in order to be 500 cubic metres: B separately from VAT, and the name of the construction site in order to change the size quantity: The defendant (the defendant's name is written in writing, and the defendant has been signed next thereto) (the name of the defendant is written, and the defendant has been signed) is the joint guarantor: B (the name is written, and the B is signed next thereto) without any dispute, which is the ground for recognition.