Enforcement Rules of Labor Union Act Article 19
When an alternate director or supervisor fills in a vacant position, his (or her) term of service shall be limited to serve out the remainder of the original term of service.In case that a labor union has filled in the vacancies of directors and supervisors in accordance with the preceding paragraph, but still cannot make the quorum as stipulated in the union charter to convene a directors’ or supervisors’ meeting, it shall hold an additional election to fill in the vacancy. The newly elected directors or supervisors are to serve out the remainder of the original terms of service of former directors or supervisors.
中文原文 工會法施行細則第19條
工會之候補理事、監事遞補時，以補足原任者未滿之任期為限。
工會依前項規定遞補理事、監事後，仍不足工會章程所定理事、監事會議召開之法定人數時，應就缺額部分進行補選，以補足原任者未滿之任期為限。
工會依前項規定遞補理事、監事後，仍不足工會章程所定理事、監事會議召開之法定人數時，應就缺額部分進行補選，以補足原任者未滿之任期為限。