Enforcement rules concerning the implementation of industrial group act. Article 43
Industrial associations established in accordance with Article 50 of the act in municipality directly under central government should comprise of at lease five industrial boards of trade or licensed factories that cannot join in a industrial board of trade.
中文原文 工業團體法施行細則第43條
依本法第五十條組織之直轄市工業會，應有直轄市工業同業公會滿五單位以上，或領有工廠登記證照而無法加入工業同業公會之工廠滿五家以上時，發起組織之。