Personal Property Secured Transactions Act Article 20

The proceeds from the sale of mortgaged property shall first be used to offset expenses, followed by payment of interest and then by payment of the principal. If there is an excess, it shall be returned to the debtor; if there is a deficiency, the mortgagee may continue to demand full debt payment.
中文原文 動產擔保交易法第20條
抵押物賣得價金,應先抵充費用,次充利息,再充原本,如有剩餘,應返還債務人,如有不足,抵押權人,得繼續追償。

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