A. On April 21, 2017, Plaintiff A and Defendant C entered into a contract for construction work of a multi-family house within the D district of Sungnam-gu, Sungnam-gu, Sungnam-si, for the construction work between the Plaintiffs and Defendant C.

The main contents are as follows:

Standard Private Construction Contract Terms

1. Name of the project: New E multi-family housing construction project (in-house and out-of-door construction project);

2. The construction site: E in the case of Sungnam-si.

3. Date of commencement: The scheduled date for completion of works on May 4, 2017: 943,740,000 won on November 30, 2017.

6. Advance payment: 20% after the completion of contract. 188,748,00 won.

9. Estimated calculation and terms and conditions: 11. Reference to the estimate calculation and conditions; the contractor’s rate of liquidated damages: The Defendant C, as the contractor, shall observe the scheduled completion of works and shall deduct 3/100 of the contract amount from the balance for each number of days delayed when the completion is not scheduled.

Estimated Calculation and Terms and Conditions

2. Article 4 (Deposit for Contract) (1) of the General Conditions of the Private Construction Contract to guarantee the performance of contractual obligations, Defendant C shall pay to A, in cash, etc., the contract bond specified in the contract to guarantee the performance of contractual obligations. (2) The contract bond under paragraph (1) may be paid in a letter of guarantee issued by any of the following agencies:

(4)