Copyright Collective Management Organization Act Article 32

A CMO shall not refuse a request from a non-member economic rights holder for management of the rights holder's economic rights that falls within the scope of categories of works and rights managed by the CMO.
中文原文 著作權集體管理團體條例第32條
非會員之著作財產權人,在集管團體管理著作類別及權利範圍內,要求集管團體為其管理著作財產權者,集管團體不得拒絕。

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