Trust Law Article 55

If there is more than one trust supervisor, the duties of such trust supervisors shall not be performed without the majority consent of all the trust supervisors unless the court has otherwise appointed one of the trust supervisors to perform the duties or unless the trust act provides otherwise; provided that custody of the trust property may be effected independently.
中文原文 信託法第55條
信託監察人有數人時,其職務之執行除法院另有指定或信託行為另有訂定外,以過半數決之。
但就信託財產之保存行為得單獨為之。

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