Industrial Group Act Article 23

The office term of directors and supervisors is three years; the number of those serving two terms uninterruptedly should not exceed half of the total number in office. The maximum serving terms of chairperson of directors is six years.
中文原文 工業團體法第23條
理事、監事之任期均為三年;其連選連任者,不得超過二分之一,理事長之連任,以一次為限。

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