Regulations Governing Internal Operating Systems and Procedures for Banks Conducting Financial Derivatives Business Article 4

The term "retail customer" as used in these Regulations shall refer to a non-professional customer.With the exception of professional institutional investors, a professional customer may apply in writing to a bank for changing status to retail customer.
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4條
本辦法所稱一般客戶,係指非屬專業客戶者。
專業客戶除專業機構投資人外,得以書面向銀行要求變更為一般客戶。

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