A. On July 19, 201, the Plaintiff and the Defendant newly built multi-family housing, sales facilities, and neighborhood living facilities on the ground A of Yeongdeungpo-gu Seoul Metropolitan Government (hereinafter “instant project”).

) With respect to the construction design service contract (hereinafter referred to as “instant service contract”) with the following contents:

- Design Contract Name - New Design for Complex B - Contract Price: Article 5 (Method of Calculation and Payment of Service Costs) 4.767 billion won: ① The remuneration for the design work shall be paid in cash within three weeks at the arrival of the payment period. ② The payment period and the amount shall, in principle, be paid in installments, as follows:

hereinafter the same shall apply.

ii)a-B (referring to the Plaintiff);

hereinafter the same shall apply.

- At the time of the conclusion of the district unit planning (20% of the contract amount) - at the time of completion of construction permit of 20% of the contract amount - at the time of completion of construction permit of 20% of the contract amount - at the time of completion of construction permit of 25% of the contract amount - at the time of completion of construction permit of 20% of the contract amount - at the time of completion of 20% of the contract amount - at the time of termination of construction inspection of 5% of the contract amount - at the time of termination of construction inspection of 20% of the contract amount - if it becomes difficult for the other party to perform contract due to unavoidable reasons, such as natural disasters, etc. . . . . 16 (Indemnification) and B may terminate the contract after consultation with the other party. The other party may claim damages if the other party causes damages due to the contract modification under paragraph 2 of Article 11, rescission or termination of the contract under Articles 14 and 15. 17 (3).