Code of Civil Procedure Article 469-1

A court of third instance must permit an appeal taken to a court of third instance on grounds other than those provided in the preceding article.The permission provided in the preceding paragraph shall be granted only when such an appeal is necessary for the continued development of the laws, or to ensure coherence of decisions, or when other legal opinions involved are significant in principle.
中文原文 民事訴訟法第469-1條
以前條所列各款外之事由提起第三審上訴者,須經第三審法院之許可。
前項許可,以從事法之續造、確保裁判之一致性或其他所涉及之法律見解具有原則上重要性者為限。

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