Regulations for Academia Sinica Presidential Searches Article 10

If the President of Academia Sinica intends to seek reappointment for a second term, the Council Chief Executive Officer shall convene a meeting one year prior to the current term’s expiration. Council Members shall elect from among themselves a temporary Chairperson to preside over the reappointment voting process.The reappointment vote shall be conducted by secret ballot, and the President reappointed upon receiving a majority of the votes cast by the Council Members present.
中文原文 中央研究院院長遴選辦法第10條
本院院長於第一任任期將屆滿而有意連任時,應於任滿前一年,由評議會執行長召集會議,評議員互推一人為臨時主席,主持院長連任投票事宜。
院長連任投票應以無記名投票方式行之,以出席評議員過半數為通過。

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