1. All of the plaintiffs' claims are dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

1. Basic facts

A. 1) The defendant is a corporation incorporated with the purpose of manufacturing and selling surface light chemical agents and environmental pollution prevention projects, which are designed to prevent industrial scattering dust on July 15, 2009. 2) The plaintiffs are residents of the Nam-gu Port B, Nam-gu, C, and the same Gu D, which are neighboring Posco Co., Ltd. (hereinafter "Posco").

B. Around May 2005, some residents of South-gu B and E established a meeting of the name "F Committee" with membership fees paid 20,000 won each to cope with the pollution damage caused by scattering dust, etc. discharged from the steel mills and steel mills around that time. Since around that time, members of the F Committee have been engaged in an assembly and demonstration requiring the formulation of pollution measures and compensation for pollution damage in the aforementioned port, steel mills and steel mouths and river mouths, etc. (2) around July 2005, members of the F Committee were the first chairperson of G to form the "H Committee" and changed its name to the "I Countermeasure Committee" around early 2008.

(hereinafter referred to as the “instant countermeasures council” in total before and after the change of name. The instant countermeasures council filed a civil petition against companies that have suffered pollution around the Spanco, etc., and requested the establishment of countermeasures against pollution and the compensation for damages.

3) On July 2, 2009, G, the chairman of the instant Countermeasure Council, as the Plaintiff J, drafted a collaborative cooperation agreement with the representative director L of K Co., Ltd., the external partner of Spanco, which includes the following (hereinafter referred to as the “instant collaborative cooperation agreement”) on July 2, 2009.

). 제1조 (목적) 본 협약은 “갑”(이 사건 대책협의회 위원장 G 이 POSCO 포항제철소와 지금까지 수많은 갈등과 반목을 정리하고, 향후 상생하는 지역 협의체로서 협력과 윈윈을 통하여 주민의 화합과 안정을 도모하며 동네발전에 기여함은 물론...