Regulations Governing Internal Operating Systems and Procedures for Banks Conducting Financial Derivatives Business Article 22

A bank that provides financial derivatives transaction services to customers shall do so with the due care of a good administrator, in accordance with fiduciary obligations, and based on the principle of good faith.
中文原文 銀行辦理衍生性金融商品業務內部作業制度及程序管理辦法第22條
銀行向客戶提供衍生性金融商品交易服務,應以善良管理人之注意義務及忠實義務,本誠實信用原則為之。

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