1. The defendant's appeal is dismissed.

2. The defendant supplementary intervenor shall bear the costs of appeal from among the costs of appeal.

The reasoning for the court's explanation on this case is the same as that for the judgment of the court of first instance, and thus, this is acceptable in accordance with Article 8 (2) of the Administrative Litigation Act and Article 420 of the Civil Procedure Act.

Therefore, the judgment of the court of first instance is justified, and the defendant's appeal is dismissed as it is without merit, and the defendant's appeal in Paragraph (1) of the decision of the court of first instance is obvious that "the defendant is a clerical error of "the National Labor Relations Commission", and it is so decided