A. The Plaintiff is a public corporation entrusted with the industrial accident compensation insurance business by the Minister of Employment and Labor under the Industrial Accident Compensation Insurance Act (hereinafter “Industrial Accident Compensation Insurance Act”), and D (hereinafter “victim”) is a person who was employed in C (trade name) who is in charge of industrial and external cleaning of the factories and offices by entering on March 1, 2010 to E (hereinafter “E”) a joint-stock company that manufactures ready-mixed under a contract with the said company at the 60-9 office located in Bupyeong-gu, Busan-dong, Busan-dong, 300. The Defendant is a person who was employed in C (trade name) who is in charge of the environmental work in the workplace of the said workplace.

B. At around 13:00 on March 30, 2010, the Defendant transported sand and gravel of aggregate heading by using painters for rearrangement of aggregate heading, and the victim was carrying out the work of inserting the sludge by inserting the sludge accumulated by the drainage of the aggregate heading. At around 13:30 on the same day, the Defendant returned the paint from the aggregate heading off to the right side, without discovering the re-employed who was cleaning by the drainage of the part below the water from the aggregate, and transferred the ice's left side surface to the right side right side of the ice heading, the 3:0 per centros, the Defendant used again, but without being aware of it, the Defendant followed the accident with the right side side side of the victim, the throkes and the left side side side of the throkes, the erokes and the erokes of the erokes and the left side side side of the victim (hereinafter referred to as the "accident in this case"), and due to the occurrence of the instant accident.