Regulations Governing Air freight Forwarder Article 11

An air freight forwarder terminating business operations is required to file with MOTC for record through CAA and surrender the original air freight forwarder license within 30 days after the termination. CAA shall issue a public notice to revoke the license if the air freight forwarder fails to surrender the license by the end of the said 30-day period.
中文原文 航空貨運承攬業管理規則第11條
航空貨運承攬業結束營業,應先報請民用航空局轉報交通部備查,並自結束營業之日起三十日內,將原領航空貨運承攬業許可證繳還,屆期未繳還時,由民用航空局逕行公告註銷。

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