Attorney Regulation Act Article 134

A non-citizen, when practicing law in the Republic of China, shall abide by all statutes related to legal practice, the Attorneys’ Code of Ethics and the charter of the bar association.
中文原文 律師法第134條
外國人在中華民國執行律師職務者,應遵守中華民國關於律師之一切法令、律師倫理規範及律師公會章程。

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