Regulations Governing the Operation of Futures Introducing Broker Business by Securities Firms Article 20

A mandating futures commission merchant shall not, by a mandate agreement or in any other manner, agree with a futures introducing broker to allow the futures introducing broker to execute any business on its behalf other than those stated under paragraph 1 of Article 3 herein.
中文原文 證券商經營期貨交易輔助業務管理規則第20條
委任期貨商不得以委任契約或其他任何方式與期貨交易輔助人約定,由期貨交易輔助人代為執行第三條第一項所定各款業務外之其他任何業務。

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