Futures Trading Act Article 29

A member director's or supervisor's representative, a non-member director or supervisor, or any other employee of a membership futures exchange is prohibited from trading on that futures exchange for themself under any name, whether on their own or by appointing any other person to do so. The persons referred to in the preceding paragraph are prohibited from providing funds to, sharing profits or losses with, or being involved in any other business interest with any member of that exchange. However, this restriction shall not apply to the representatives of member directors or supervisors who perform such acts for the interests of the members they represent.
中文原文 期貨交易法第29條
會員制期貨交易所之會員董事或監察人之代表人,非會員董事、監察人或其他職員,不得為自己用任何名義自行或委託他人在該期貨交易所交易。
前項人員,不得對該期貨交易所之會員供給資金、分擔盈虧或發生營業上之利害關係。
但會員董事或監察人之代表人,對於其所代表之會員為此項行為者,不在此限。

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