The company can directly fire employees without going through the trade union, which has nothing to do with the trade union. As long as it conforms to the labor law, the employer can dismiss employees. Article 39 of the Labor Contract Law of People's Republic of China (PRC): If the employer unilaterally terminates the labor contract (negligent termination), the employer may terminate the labor contract under any of the following circumstances:

(a) during the probation period, it is proved that it does not meet the employment conditions; (two) a serious violation of the rules and regulations of the employer; (three) serious dereliction of duty, corruption, causing great damage to the employer; (4) The laborer establishes labor relations with other employers at the same time, which has a serious impact on the completion of the work tasks of the unit, or the employer refuses to correct it; (5) The labor contract is invalid due to the circumstances specified in Item 1 of Paragraph 1 of Article 26 of this Law; (6) Being investigated for criminal responsibility according to law. Article 40 Under any of the following circumstances, the employer may terminate the labor contract after notifying the employee in writing 30 days in advance or paying the employee an extra month's salary: (1) The employee is sick or injured non-work-related, and cannot engage in the original job or other jobs arranged by the employer after the prescribed medical treatment period expires; (two) the laborer is not competent for the job, and he is still not competent for the job after training or adjusting his post; (3) The objective conditions on which the labor contract was concluded have changed greatly, which makes it impossible to perform the labor contract, and the employer and the employee cannot reach an agreement on changing the contents of the labor contract through consultation.