Regulations Governing the Operation of Futures Introducing Broker Business by Securities Firms Article 8

A futures introducing broker may accept a mandate from one futures commission merchant only; a futures commission merchant may concurrently mandate one or more futures introducing broker.If a mandating futures commission merchant referred to in the preceding paragraph engages in domestic futures brokerage business, it shall be a clearing member of a domestic futures clearing house and shall make deposits to the clearing and settlement fund in accordance with the rules of the domestic futures clearing house upon mandating each futures introducing broker or branch office thereof.
中文原文 證券商經營期貨交易輔助業務管理規則第8條
期貨交易輔助人以接受一家期貨商之委任為限;期貨商可同時委任一家以上之期貨交易輔助人。
前項委任期貨商經營國內期貨經紀業務者,應具本國期貨結算機構之結算會員資格,並應於每委任一家期貨交易輔助人或其分支機構,依本國期貨結算機構之規定,繳存交割結算基金。

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