Company Act Article 217-1

In case all supervisors of a company are discharged, the board of directors shall, within 30 days, convene a special meeting of shareholders to elect new supervisors. However, for a company whose shares are issued to the public, the special meeting of shareholders for election of supervisors shall be convened by the board of directors within 60 day.
中文原文 公司法第217-1條
監察人全體均解任時,董事會應於三十日內召開股東臨時會選任之。
但公開發行股票之公司,董事會應於六十日內召開股東臨時會選任之。

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