Industrial Group Act Article 36

Each member should at least bear one share of operating fee and no more than 50 shares will not be allowed, when necessary, an increase of membership dues may be charged upon resolutions made in general meetings, the total amount of operating fee and amount of each share are determined at general meetings and reported to competent authorities, and the competent authorities deliver the report to target business competent authorities for approval.
中文原文 工業團體法第36條
事業費之分擔,每一會員至少一份,至多不得超過五十份;必要時,得經會員大會決議增加之。
事業費總額及每份金額,應由會員大會決議,報請主管機關轉由目的事業主管機關核准後行之。

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