The Defendant Ansan-si is a company that, around September 2010, entered into a concession agreement for the rental of sewage conduits (BTL) with respect to one unit of the road, including the road of this case, in accordance with the Act on Public-Private Partnerships in Infrastructure, around September 2010, the management agency for the maintenance and repair of the road in front of the household complex of the Yeong-si in Ansan-si (hereinafter referred to as the “road of this case”), and the Defendant Pemul Environment Co., Ltd. (hereinafter referred to as the “Defendant Pemul Environment”) and carried out the construction of sewage conduits (hereinafter referred to as the “construction of this case”).

B. Defendant Masung-si is the competent authority, and Defendant Masung-si contracted the instant construction to Geumho Construction Co., Ltd. as the project implementer, and Defendant Yjin Construction Co., Ltd. (hereinafter referred to as the “Defendant Hasung-si”) is a company which was subcontracted part of the instant construction from Geumho Construction Co., Ltd. and executed the instant construction.

C. Defendant Gangseo Construction completed the work of cutting part of the edge of the instant road to laid sewage culvert underground, and was engaged in concrete production on the ground surface, but did not take any particular safety measures, only installed a container at the entrance of the instant road at the point.

On December 2, 2013, the Plaintiff suffered injury, such as damage to light trees, etc., by placing bicycles in concrete with the front wheels of the bicycle, while continuing to work for a concrete double production with bicycles around 09:50 on December 2, 2013.

hereinafter referred to as "the accident of this case"

E. Due to the instant accident, Defendant B’s river construction works for the mass production of concrete near the instant road. It is an unspecified number of people.