Trademark Act Article 40

Entry of sub-license in the RegisterUnless otherwise prescribed in a licensing contract, an exclusive licensee is entitled, within the scope of the license, to sub-license the registered trademark to another person.A non-exclusive licensee shall not sub-license the registered trademark to another person, unless the proprietor or the exclusive licensee consents to the sub-license.A sub-license shall have no locus standi against any third party unless it is entered in the Register by the Registrar Office.
中文原文 商標法第40條
專屬被授權人得於被授權範圍內,再授權他人使用。
但契約另有約定者,從其約定。
非專屬被授權人非經商標權人或專屬被授權人同意,不得再授權他人使用。
再授權,非經商標專責機關登記者,不得對抗第三人。

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