A. The Plaintiff runs the manufacturing and installing business of industrial machinery, etc. with the trade name B, and the Defendant is a company manufacturing vessel and industrial boiler, etc.

B. On February 19, 2013, the Plaintiff entered into a contract with the Defendant for the manufacture and supply of HYDAUIC 3-OL POL POL 20T x 400 L (hereinafter “instant machine”) (hereinafter “instant contract”).

The main contents of the instant contract are as follows.

1) Construction cost: 1,485,00,000 won (including value-added tax): The construction period: 3) the construction site of February 19, 2013 to August 18, 2013; 1) the installation work of HYD 3-RAL POL POL POL 3-EBE MACHE (120T x 400L x 400L); (2) the installation work of additional materials such as PITCOVV, NCHCR BG 200, 100,000 won (including part-added tax): the Defendant’s payment period of 00,000,000 won (including value-added tax): the Defendant’s payment period of 00,000,000 won (including advance payment of value-added tax); and (3) the Defendant’s payment period of 00,000,000 won (including advance payment of value-added tax); and

C. The Plaintiff installed the instant machinery in the Defendant’s factory from around August 28, 2013 to around September 10, 2013 to around September 13, 2013 as the instant machinery, which had been located in the Defendant’s company before the Defendant’s officers and employees.