Regulations Governing Custody and Investment of Funds by Securities Firms on Behalf of Customers Article 18

When a securities firm uses the funds in the cash management account to conduct repo-style transactions, the credit rating of the trading counterparties shall comply with the credit rating provisions in Article 6, paragraph 1, subparagraph 3.
中文原文 證券商辦理客戶委託保管及運用其款項管理辦法第18條
證券商運用現金管理專戶款項從事附買回交易時,交易相對人之信用評等須符合第六條第一項第三款所定之信用評等等級。

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