Regulations Governing Securities Trading on the Taipei Exchange Article 15

Securities firms handling brokerage trading of securities shall prepare and deliver a TPEx trade report to the principle when a trade is executed.
中文原文 證券商營業處所買賣有價證券管理辦法第15條
證券商受託買賣有價證券,應於成交時作成櫃檯買賣報告書交付委託人。

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