Code of Civil Procedure Article 408

The judge may, where necessary, order the parties or their statutory agents to appear in person at the mediation session. Where necessary, the mediators may request the judge to issue such an order.
中文原文 民事訴訟法第408條
法官於必要時,得命當事人或法定代理人本人於調解期日到場;調解委員認有必要時,亦得報請法官行之。

English translation for reference only; the Chinese text prevails. Not legal advice.