Commercial Case Adjudication Act Article 32

If the mediation is successful, the petitioner may, within three months from the date the mediation is settled, file a petition for a refund of three-fourths of the mediation filing fee. For cases that are transferred to mediation from a litigation proceeding, and that reach a settlement, the parties may, within three months from the date of the successful mediation, move for a refund of the balance of the filing fee paid, after deducting one-fourth of the court costs.
中文原文 商業事件審理法第32條
調解成立者,聲請人得於調解成立之日起三個月內,聲請退還所繳聲請費四分之三。
於訴訟程序經移付調解而調解成立,當事人得自調解成立之日起三個月內,聲請退還扣除應繳裁判費四分之一後之餘額。

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