1. The defendant is the plaintiff B, C, D, E, F, G, H, H, K, K, M, M, N, P, Q, Q, Q, M, T, U, M, X, Y, Z, AAB, AC, AC, AD, AE, AF, AG, and AG.

1. Basic facts

A. The parties, etc. 1) The Defendant is a company that manufactures and sells all kinds of internal combustion engine parts, and the Plaintiffs are the Defendant Company AV plant (hereinafter “AV plant”).

) and AW factory (hereinafter referred to as “AW factory”)

2) The Plaintiffs have joined the AX Trade Union (hereinafter referred to as the “AX Trade Union”) AY branch(hereinafter referred to as the “AX Union”) or the AZ branch(hereinafter referred to as the “AY branch(hereinafter referred to as the “AX Union”) of the same trade union(s).

B. On January 13, 2010, the Plaintiffs’ union and the Defendant Company entered into a “Agreement on the Improvement of Wages and Work-Based Systems (hereinafter “Agreement”) in 2009, including that “the purpose of introducing the two-way system on January 1, 201, taking into account economic situation and all the relevant conditions.” (ii) On December 23, 2010, the Plaintiffs’ union demanded special organization negotiations to the Defendant Company based on the said agreement, and accordingly, the Plaintiffs’ union and the Defendant Company continued special negotiations regarding the introduction of the two-way system during the period from January 18, 201 to May 4, 2011.

3) Upon the occurrence of special negotiations between the Defendant Company, the Plaintiffs’ Trade Union applied for mediation of a labor dispute to the Chungcheongnam-nam Regional Labor Relations Commission on May 3, 201, but the said Trade Union decided to suspend the mediation without presenting a mediation proposal on the grounds of a significant opinion between labor and management on May 13, 2011. (c) Plaintiffs’ industrial action and the Defendant’s workplace closure 1) labor union and the Defendant Company carried out 6th special negotiations at the AV factory seminars room of the Defendant Company on March 25, 2011. The Plaintiffs’ Trade Union asserted that the changes in the work form and the introduction of a monthly wage system first priority and the problems related to the production volume will be discussed later. Accordingly, the Defendant Company continued two major tasks for a series of week without considering the securing of production volume.