1. Defendant A Co., Ltd and the part concerning the claim for the confirmation of the existence of an obligation in the main lawsuit of the judgment of the first instance;

1. Basic facts

A. The Plaintiff is a corporation established under the Korea Electric Power Corporation Act with the aim of promoting the development of electric power sources and contributing to the stabilization of demand and supply of electricity and contributing to the national economy by promoting the rational operation of the electric power generation business. Defendant A Co., Ltd. (hereinafter only the Defendant A) is a corporation operating “D”, which is a golf course located in the area of Yeongdeungpo-si. Defendant C Co., Ltd. (hereinafter only the Defendant C Co., Ltd.) is a corporation operating “E”, which is a golf course located in the same Gu, and Defendant C Co., Ltd. (hereinafter only the Defendant C Co., Ltd.) is an affiliate belonging to the F Group together with Defendant A and C, and Defendant C Co., Ltd. (hereinafter only the Defendant D Co., Ltd.) is a farming company established for the management of nearby farmland in the Republic of Korea, and H Co., Ltd. (hereinafter referred to as “C”) is

B. Around 2004, the Plaintiff promoted the construction project of 345kV L-M tracks in preparation for the demand for electricity according to the large-scale development plan in the south-do area (I and J). Of these, when the plan was established that part of the power transmission n orO lines in the attached Form 5 drawings passes over the world around D, Defendant A, who is the operator of D, filed a civil petition for changing the plan to ensure that the above 345kVV transmission lines pass over the offline, around May 2004. The Plaintiff consulted with Defendant A about the adjustment of the height of the steel tower and the change of progress for the prompt resolution of civil petitions and the completion of construction works.

C. On June 2, 2004, the Plaintiff and Defendant A, instead of allowing the above 345kV transmission lines to pass through the airspace adjacent to D, according to the original Plaintiff’s plan, are not more than the Convention on the Construction of the Iron No. Q-Rs and the Power Transmission tower and the Power Transmission Line in Annex 5 Map among the 154kV L Transmission Line, which were operated by Defendant C adjacent to D, to move to the outermost of the golf course (hereinafter “the relocation construction of this case”).