Regulations Governing the Operation of Securities Introducing Broker Business by Futures Commission Merchants Article 6

In receiving securities trading orders from securities investors and forwarding the orders for execution by the mandating securities firm, the securities introducing broker shall be subject, mutatis mutandis, to Article 35 of the Regulations Governing Securities Firms.A securities introducing broker that operates the business of the preceding article and the preceding paragraph shall do so in accordance with the requirements of the TWSE, the GTSM, and the TSA regarding account openings, credit checks, transaction limits, and brokered transactions.
中文原文 期貨商經營證券交易輔助業務管理規則第6條
證券交易輔助人接受證券投資人證券交易之委託書並交付委任證券商執行,準用證券商管理規則第三十五條規定。
證券交易輔助人辦理前條及前項業務應依證券交易所、證券櫃檯買賣中心及證券商同業公會所定有關開戶、徵信、買賣額度及受託買賣規定辦理。

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