Regulations Governing the Conduct of Securities Trading Margin Purchase and Short Sale Operations by Securities Firms Article 6

A securities firm conducting securities margin purchase and short sale business shall pay an additional operation bond in the amount of NT$50 million.
中文原文 證券商辦理有價證券買賣融資融券管理辦法第6條
證券商辦理有價證券買賣融資融券者,應增提新臺幣五千萬元營業保證金。

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