The legal personality of union cannot be collaterally attacked by respondent company in the certification election proceedings.
Petitioner union correctly argues that its legal personality cannot be collaterally attacked in the certification election proceedings. As we explained in Kawashima:
Except when it is requested to bargain collectively, an employer is a mere bystander to any petition for certification election; such proceeding is non-adversarial and merely investigative, for the purpose thereof is to determine which organization will represent the employees in their collective bargaining with the employer. The choice of their representative is the exclusive concern of the employees; the employer cannot have any partisan interest therein; it cannot interfere with, much less oppose, the process by filing a motion to dismiss or an appeal from it; not even a mere allegation that some employees participating in a petition for certification election are actually managerial employees will lend an employer legal personality to block the certification election. The employer’s only right in the proceeding is to be notified or informed thereof.
The amendments to the Labor Code and its implementing rules have buttressed that policy even more.