1. The Defendant’s KRW 112,921,397 as well as 5% per annum from February 20, 2019 to August 21, 2020 as to the Plaintiff.

1. Basic facts

A. C. A. A.S. Co., Ltd. subcontracted a reinforced concrete construction project to the Defendant on July 5, 2017, among the construction works of new construction works of public housing and officetels located in Eunpyeong-gu Seoul. Among the construction works, C.S. subcontracted the construction works of reinforced concrete to the Defendant. Among the construction works, the steel volume to be executed in the new construction works of public housing was 2,423 tons, the unit price was 3,095 tons, the steel volume to be executed in the instant construction works of public housing, and the unit price was 3,095 tons/metrics.

B. On July 2017, the Defendant entered into a contract with the Plaintiff on the parts of steel reinforced concrete assembly among the above reinforced concrete construction works with the following terms:

(hereinafter referred to as the “instant arrangement”). Article 4 (Amount of Construction Execution) “B” (Plaintiff) shall be determined by the unit price of 330,000 won per ton (public housing)/340,000 won per ton. Items included in the total performance-based performance-based work cost shall be as shown in Attachment 1, and all amounts saved at the time of final settlement shall be paid as piece rates of “B” (Plaintiff).

Article 8 (Settlement of Accounts) In principle, the settlement shall be made according to the quantity of executions: Provided, That the method of settlement of principal contractor shall be followed.

Attachment 1 (Subject to Article 4) - The burden of each item included in the amount of construction work “B” (the outside part of the implementation of “B”) - All labor cost (including part-time Gap, resident tax, employment insurance, national pension, health insurance, long-term care insurance premium for the aged), and long-term care insurance premium for the elderly) - The total construction of steel-line assembly work (all miscellaneous materials necessary for assembling, such as Spain, Spain, etc.) - the total cost of the on-site processing and construction (all miscellaneous equipment necessary for processing, such as cutting, clock, etc.) - All of the expenses (all miscellaneous items, such as food, lodging, lodging, working clothes, various fines and fines, various fines, retirement allowances, container and office work house A) - the share of company borne by the company from among indirect costs (the installment, health insurance premium, long-term care insurance premium for the elderly, insurance premium, insurance premium, insurance premium, construction machinery rental fee) / there is no dispute over the payment of construction machinery rental fee).