According to my country's detailed rules and regulations, if a registered trademark is not practical for three consecutive years without justifiable reasons, you must apply for cancellation of the trademark three years from the date of announcement of the registered trademark. Legal basis: Article 43 of the Trademark Law of the People's Republic of China: A trademark registrant may license others to use its registered trademark by signing a trademark license contract. The licensor shall supervise the quality of the goods used by the licensee using its registered trademark. The licensee shall ensure the quality of the goods using the registered trademark.