The Madrid Agreement protects trademarks and service marks. The main contents include the application, effectiveness, renewal, and fees for international registration of trademarks. According to the agreement, the procedure for international registration of trademarks is that nationals of the member countries of the agreement, or nationals of non-member countries who have domicile or real and effective business offices in the member countries, first obtain trademark registration in their own countries or member countries that live or have no business offices, and then apply for international registration of trademarks to the International Bureau of the World Intellectual Property Organization in Geneva through the trademark authorities in that country. If the application is approved, it will be announced by the International Bureau and the relevant member states that the applicant requests for protection will be notified. These member States can declare that they will not protect the trademark within one year, but they need to explain the reasons; The applicant may lodge a complaint with the competent authority or court of the country. Anyone who fails to file a declaration of rejection of registration with the International Bureau within one year may be deemed to have agreed to trademark registration. Trademarks registered by the International Bureau are valid for 2 years and can be renewed indefinitely. The agreement facilitates the nationals of its member countries to obtain trademark registration in other member countries of the agreement. In addition, according to the agreement, if a trademark that has obtained international registration is revoked or declared invalid by the local trademark authority within five years from the date of obtaining international registration, the trademark registration in other member countries of the agreement will also be revoked. Only when the international trademark registration expires five years later, the registration of the trademark in other member countries of the agreement can be registered independently of their own countries. The Madrid Agreement is a supplement to the Paris Convention for the Protection of Industrial Property on trademark registration. According to the agreement, you must join the Paris Convention for the Protection of Industrial Property before you can join the Madrid Agreement.