1. Save money: you only need to submit the fees to the International Bureau, and you don't need to pay the fees to other countries separately. The cost of international registration is far lower than that of countries applying for registration, which generally includes the trademark registration fee, agency fee and translation fee of that country.
2. Time saving: the applicant will know whether his internationally registered trademark is protected in the relevant countries within 12 months or 18 months.
3. Save trouble: the applicant can use Chinese and an application form to designate one or more countries to apply for international registration of trademarks of one or more types of goods and or services.
Single registration does not have the above advantages.