Educational Association Act Article 19

When members or member representatives cannot attend the general meetings in person, they should entrust other members or member representatives to deputize their votes, each member or member representative can only deputize one member or member representative and the entrusted members or member representatives should not exceed half of the number of those attending the meetings.
中文原文 教育會法第19條
會員(代表)不能親自出席會員(代表)大會時,得以書面委託其他會員(代表)代理。
但每一會員(代表)以代理一人為限,並不得超過親自出席人數之半數。

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