Company Act Article 121

A shareholder of limited liability who leads others to believe that he is a shareholder of unlimited liability, shall be liable to bona fide third person as though he were a shareholder of unlimited liability.
中文原文 公司法第121條
有限責任股東,如有可以令人信其為無限責任股東之行為者,對於善意第三人,負無限責任股東之責任。

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