Company Act Article 51

When the Articles of Incorporation provide for one or several of the shareholders to conduct business, such shareholder or shareholders shall not resign without cause nor can other shareholders cause him or them to retire without cause.
中文原文 公司法第51條
公司章程訂明專由股東中之一人或數人執行業務時,該股東不得無故辭職,他股東亦不得無故使其退職。

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