Regulations Governing Securities Firms Accepting Orders to Trade Foreign Securities Article 20

For securities firms accepting orders to trade foreign securities, the settlement of the principal's money/securities shall be conducted within the settlement period specified by the foreign securities market.The settlement period of various foreign securities markets referred to in the preceding paragraph shall be reported by the securities firm to the securities dealers association for its record; the same procedure shall apply with amendments.
中文原文 證券商受託買賣外國有價證券管理規則第20條
證券商受託買賣外國有價證券,與委託人款券之交割應依各外國證券市場之交割期限辦理。
前項各外國證券市場之交割期限,應由證券商報請公會備查,變更時亦同。

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