Financial Holding Company Act Article 21

If, after it has received the FSC establishment approval, a Financial holding company ceases having a Controlling Interest, as defined in Article 4, Paragraph 1, of this Act, in a Bank Subsidiary, Insurance Subsidiary, or Securities Subsidiary, the FSC shall request such Financial holding company to take corrective measures within a prescribed period of time. If the Financial holding company fails to remedy the matter, its establishment approval shall be revoked.
中文原文 金融控股公司法第21條
金融控股公司設立後,對其銀行子公司、保險子公司或證券子公司喪失第四條第一款規定之控制性持股者,主管機關應限期命其改正;屆期未改正者,廢止其許可。

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