The defendant is 18,112,213 won to the plaintiff and 6% per annum from August 1, 2019 to January 14, 2021.

A. A contract for construction work (hereinafter “instant contract for construction work”) was concluded with respect to the instant construction work.

The main contents of the above contract for construction works are as follows:

A person ordering a standard subcontract contract for construction works: The name of the F.C. construction project: tin and manufacturing facility construction project.

2. Title of subcontracted construction: Installation of steel-frame and roof walls construction;

4. Period of construction: June 30, 2019 completed on March 26, 2019.

5. Contract amount: Amount of KRW 300 million per day (302,500,000): KRW 275,000 per day (275,00,000) (Labor cost: KRW 96,759,2320,000 per day: KRW 96,75,000,000 per day: KRW 17,500,000 per day (27,50,000).

6. Payment of the price;

(c) Payment of the price adjustment and payment due to any change in the economic situation, etc. (1) within 30 days from the date of the receipt of the adjustment from the ordering person in accordance with the contents and proportion thereof (2) 11. Payment of delayed prize rate: 3/1,000: March 25, 2019 * The principal contractor: BBB * the subcontractor * the subcontractor * the subcontractor: Article 14-2 (Change in Contract Amount due to Modification of Design) of the Contract for A representative A (main sentence) (1) If a increase or decrease in the volume of construction works occurs at the request of the ordering person or by his/her modification of design, etc., the relevant contract

(2) The adjustment of a contract price under paragraph (1) shall be in accordance with the following standards:

However, the same shall apply to the modification of the design from the ordering person within the scope adjusted by the ordering person.

The unit price of the increased or decreased construction shall be the unit price on the detailed statement of calculation under Article 3 (2) (hereinafter referred to as "contract unit price").

The unit price for a new item with no contract unit price shall be determined by multiplying the unit price calculated as at the time of design modification by the successful tender ratio.

(3) General management expenses and profits for the increased or decreased portion of the contract amount shall be determined at the rate at the time the contract is concluded.

2) In-house calendars and tables attached to the above construction contract are set forth.