(1) An employer shall, with regard to the preparation or alteration of the rules of employment, hear the opinion of a trade union if there is such a trade union composed of the majority of the employees in the business or workplace concerned, or otherwise hear the opinion of the majority of the said employees if there is no trade union composed of the majority of the employees: Provided, That in case of amending the rules of employment unfavorably to employees, the employer shall obtain their consent thereto.
(2) When an employer reports the rules of employment pursuant to Article 93, he or she shall attach a document stating the opinion as referred to in paragraph (1).