The Madrid system of international registration of marks is established in 14th April 1891 functions under the Madrid Agreement and the Madrid Protocol. It is a system allows applicants fill international application based on a registration with the office of the origin among the countries party to the Madrid Agreement

Features 
1. Shortened application time
If the application is accurate and fees payments are settled, the applicant could obtain certificate for marks in 3-4 months from the day the applicant filed the application to the trademark office. According to the Madrid Agreement and the Madrid Protocol, each state party should complete the examination within one-year or one year and a half. Otherwise, the mark will obtain legal protection automatically.
2. Simplified procedures
Direct application from trademark authorities in the country of origin to the International Bureau of WIPO without service assignment.
3. Reduced cost
Applicant should pay relevant fee calculated in CHF, which avoided separate payment in each state party and reduced the total cost.

Conditions for Madrid trademark registration
1. Valid Business Certificate in the state parties
2. Address in the state parties
3. Nationality in the state parties
4. Before filing an international application, the applicant should ensure basic application or registration in state parties. The international application may relate only to goods and services covered by the basic application or registration

Information required 
1. Name and address of the applicants
2. Announcement of preliminary examination, application documents issued by authorities with one set of copy
3. Trademark sample
4. Specify states in which the applicant wishes the mark to be protected
5. Pinyin comply with international application language requirements should be indicated with marks or part of marks formed by non-Latin alphabet, non-Arabic numerals or non-Roman numerals

Documents required
1. One Power of attorney chopped by the applicants with detailed information of matter entrusted
2. Application form with applicants information such as Chinese name ,English name, address, classification of goods and services
3. 2 copies of trademark sample, on which Indicate trademarks pinyin or meaning
4. Copy of domestic certificate of registered trademark
5. Copy of Business Certificate or ID card of the applicants

Procedures for international trademarks
The applicant should file application to the country of origin. and then the application will be summarized to the International Bureau of WIPO located in Geneva, Switzerland. Single application filed by the applicant will not received by the International Bureau.
1. Application in the country of origin
The trademark office would send fee quotes to the applicant after the application was received. If the payments were settled and the documents were accurate. The trademark office will send the documents to the International Bureau. If not, the trademark office will notify the applicant to complete the materials within 15 days. Overdue items will be sent back to the applicant. 
2. Application in the International Bureau
Approval from the International Bureau for the registration if the documents are complete and accurate.
3. Application in national phase
●Registration will be suspended If the materials are incomplete and incorrect, the trademark office would notify the applicants within 20 days after the suspension, requiring complete materials within 20 days
●If the materials are complete but with incorrect classification of goods or services, the International Bureau can provide amendments to the trademark office. If agreed, the trademark office would notify the applicants within 20 days after receiving the amendments, requiring modification in due deadlines with an additional registration fee
4. Registry
Registration without substantive examination by the International Bureau
5. Examination in national phase
Substantive examination in each country

International trademark renewal
Term of validity for EU trademark is 10 years. If the registrant intends to continue to use the registered trademark beyond the expiration of the period of validity, an application for renewal of the registration shall be made within six months before the said expiration. Where no such application could be filed within the above period, an extension period of six months may be allowed. If no application is filed by the expiration of the extension period, the registered trademark will be canceled.