1. The Defendants’ money stated in the attached Table “the amount of figures” and each of the above money to the Plaintiffs on November 2014.

1. Basic facts

A. The Plaintiff Korea Institute of Structural Safety (hereinafter “Plaintiff Institute”) is a legal entity that engages in the business of safety diagnosis, inspection, etc. of construction structures. The Plaintiff Ssung Engineering Co., Ltd. (hereinafter “Plaintiff Ssung”) is a legal entity that engages in the business of maintaining and managing facilities and providing construction technology services, etc., and the Defendants and A resided in the Defendants and A (hereinafter “instant apartment”).

B. The apartment of this case is located at a place less than 0.7 to 6.5km away from the Cheongju Airport, and the occupants of the apartment of this case appealed from the aircraft noise due to the flight landing at the above Cheongju Airport.

C. Around October 2004, the Plaintiffs entered into a diagnosis service contract (hereinafter “instant service contract”) with A, including apartment noise, with the purpose of measuring the degree of damage caused by each household resident’s aircraft noise in the instant apartment complex, calculating the adequate amount of damage, and conducting a smooth lawsuit at the time of filing a lawsuit against the Plaintiff. The instant service contract was signed by A as “the service requester (resident representative)” and signed by A as “the designated party (resident representative)” and affixed the seal of the president of the instant apartment occupant association.

In entering into an entrustment contract with the plaintiffs (hereinafter referred to as "B") of the apartment of this case, the apartment of this case (to be entered in the separate list of the designated parties, the designated parties, and the representatives of the occupants' representatives (the representatives of the lessees) that represent them; hereinafter referred to as "A") shall determine the necessary mutual rights, obligations, etc. and faithfully perform the contract in accordance with good faith, in which the noise inspection services for the above apartment of this case and their surroundings and each household are entered into the entrustment contract:

(Interim omitted) Article 6 (Payment) (1) A shall be economically fixed for service costs to B.