1. The Defendant’s KRW 27,250,00 for the Plaintiff and 5% per annum from June 18, 2016 to August 21, 2018.

1. Basic facts

A. The Plaintiff is a person who performs the construction of waterproof and abstinence, etc., and the Defendant is a person who constructed a new building on the ground of both States C, etc.

B. On September 19, 2014, the Plaintiff entered into a service contract (hereinafter “instant service contract”) with the Defendant with respect to waterproof and aesthetic construction works in the instant construction site (hereinafter “instant construction project”) as follows:

Construction Service Contracts

1. Name of construction: New construction of multi-household housing in the Do as both weeks; and

2. The construction site: C and E (2 Dongs) at both weeks.

3. Design works: Artistic works and waterproof works;

4. Construction scope - Unclaimed construction: 151PY concrete surface treatment, irrigation pit, window protection, collapse in the vicinity of the window protection, wall and riverside in the ceiling area for 10 households in the total floor area for 38 households, 179PY concrete surface treatment, irrigation gate, brick, wall and tent slope, wall wall and wall and wall in a sunken area, - Waterproof construction: C8 household toilets and balcony water waterproof, e 10 household toilets and balcony liquid flood control, flood control, roof drainage, roof drainage;

5. Contract amount: 39,600,000 won per day (39,600,000).

6. Payment of progress payment: Payment of 60% from the second bank loans when the progress of 80% is in progress, and remaining 40% from the date of completion shall be made as bank loans after completion. 7. Scheduled date of commencement: Clause of the construction contract on September 25, 2014.

1. Unclaimed works - All walls and ceiling parts, excluding toilets walls, shall be constructed in such a way that they can maintain the level of horizontal activity for surveillance of water-saving mortar by performing cement pesting work after conducting cement turbows and printing groups, glars, reticulate works;

- The parts around the inner wall hold of the window are installed so that they may be cut off without being aware of it.

(PVC width PC widths shall be used to maintain vertical and horizontal plane in part of the Corpacker part of the copacker part exposed to the interior wall of a building.

C. Meanwhile, from October 2014, the Plaintiff and the Defendant exchanged several certificates of content with respect to the performance of the instant service contract from around October 2014.