tando
2
Though that is still a draft, it says a foreigner who has a license from a foreign government can get a permission by submitting the proof to CAA.
第九十九條之十二 外國人領有外國政府之遙控無人機註冊、操作及檢驗合格等證明文件者，得向民航局申請認可後，依本章之規定從事飛航活動。
Not a direct answer, but you might find something.