Administrative Litigation Act Article 45

The ruling ordering intervention shall indicate the status of the litigation and reasons for ordering intervention and shall be served on the parties to the litigation.The administrative court shall order the parties or a third party to present statements in writing or oral prior to rendering its ruling in accordance with the provision of the preceding Paragraph.An appeal may be taken from the ruling ordering intervention.
中文原文 行政訴訟法第45條
命參加之裁定應記載訴訟程度及命參加理由,送達於訴訟當事人。
行政法院為前項裁定前,應命當事人或第三人以書狀或言詞為陳述。
對於命參加訴訟之裁定,不得聲明不服。

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