1. The Defendant (Counterclaim Plaintiff) paid KRW 180,000,000 to the Plaintiff (Counterclaim Defendant) and its related amount from February 27, 2016 to July 5, 2017.

1. Facts of recognition;

A. The Plaintiff is a company established for the purpose of the boiler manufacturing and sales business, and the Defendant is a company established for the purpose of developing energy and environment-related technology and the business of agricultural and livestock products using waste heat.

B. On April 22, 2014, the Plaintiff entered into a contract with the Defendant to manufacture and set up “WCF burning and Sboiler” (hereinafter “instant boiler”) within the Defendant’s factory (hereinafter “instant contract”). The key contents are as follows.

Article 2 (Terms of Contracts)

(a) Contract title: Installation of defendant cereal plant WCF burning and boiler;

(b) Contract amount: 600,000,000 won (excluding value-added tax);

(c) Contract term: 3 months after the order is given (excluding the authorization period of the Energy Management Corporation); and

라. 내 용 : WCF 연소로 및 스팀보일러 설치(스팀생산량 5ton/hr, 사용압력 7kg/㎠) 항목 사양 수량 비고 추가설비 및 내용 원료저장호퍼 5㎥ 4 원료샘플기준 1) Boiler 급수 연수장치 2) 급수 Pump (2set) 3) 급수 Tank (1set) 4) 설치 및 시운전 포함 5) 세부사항은 견적서 및 보 일러 제작사양에 준함 6) 연소로 및 보일러 : 총 4대 원료투입장치 1,000kg /hr 4 " WCF연소로 5ton/hr 스팀생산용 4 진공강제송풍연소 스팀보일러 5ton/hr 이상 4 관류형 방지시설(1) 120㎥/min 1식 집진장치 방지시설(2) 120㎥/min 1식 스크러바 굴뚝 STS 250/200 1식 이중연돌

(e)general WCF fuel shape and fuel type should be a mechanical design based on Samam provided by the Defendant.

Whether or not to establish a Bagle shall be determined after the rent as necessary, and the authorization and permission of air discharge facilities shall be obtained by the defendant.

Article 3 (Methods of Price Payment)

(a) Contract deposit (30%): 180,000,000 won - Within two days after the contract is concluded;

(b) Part payments (40%): 240,000,000 won - Within one week before the entry of the goods;

(c) Balance (30%): 180,000,000 won - Within seven days after the inspection of trial run for three months after the completion of installation;

(d) Value-added tax: 60,000,000 won;