According to the law, the respondent in labor arbitration has the right to entrust an agent; as long as the applicant’s arbitration request is reasonable and sufficient, there is no need to care about the respondent entrusting a lawyer or other agent, because it will affect the outcome. The impact is not big.
Article 24 of the "Labor Dispute Mediation and Arbitration Law" states that parties may entrust an agent to participate in arbitration activities. To entrust another person to participate in arbitration activities, a power of attorney signed or stamped by the client shall be submitted to the Labor Dispute Arbitration Commission. The power of attorney shall specify the entrusted matters and authority.