Code of Civil Procedure Article 90

Where an action is concluded without a decision, the court shall decide on the responsibility for litigation expenses by ruling on a motion.The motion referred to in the preceding paragraph shall be made within three months after knowing or being notified of the conclusion of the litigation.The provisions of Articles 81, 82, 91, and 93 shall apply mutatis mutandis to the situation in the first paragraph.
中文原文 民事訴訟法第90條
訴訟不經裁判而終結者,法院應依聲請以裁定為訴訟費用之裁判。
前項聲請,應於知悉或受通知訴訟終結後三個月之不變期間內為之。
第八十一條、第八十二條、第九十一條至第九十三條之規定,於第一項情形準用之。

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