Regulations Governing the Conduct of Discretionary Investment Business by Securities Investment Trust Enterprises and Securities Investment Consulting Enterprises Article 37

When a trust enterprise concurrently provides discretionary investment services, the trustee shall itself handle trust affairs, provided that with the consent of the customer and the beneficial owner, it may cause a third party to undertake trust affairs on its behalf.The third party referred to in the preceding paragraph who may act as agent for the trustee in handling discretionary investment affairs may only do so on behalf of trust enterprises that have FSC approval for concurrent operation of discretionary investment business, and on behalf of SITEs or SICEs that may conduct discretionary investment business.
中文原文 證券投資信託事業證券投資顧問事業經營全權委託投資業務管理辦法第37條
信託業兼營全權委託投資業務,受託人應自行處理信託事務。
但經客戶及受益人之同意,得使第三人代為處理。
前項得代理受託人處理全權委託投資業務之第三人,以經本會核准得兼營全權委託投資業務之信託業暨得經營全權委託投資業務之證券投資信託事業及證券投資顧問事業為限。

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