Legal analysis: Most of China’s well-known trademarks are recognized by the State Administration for Industry and Commerce (Trademark Office and Trademark Review and Adjudication Board). The following factors should be considered in determining a well-known trademark: the degree of awareness of the trademark by the relevant public; the duration of use of the trademark; the duration, extent and geographical scope of any publicity work for the trademark, etc.

Legal basis: Article 14 of the "Trademark Law of the People's Republic of China" Well-known trademarks shall be determined at the request of the parties as facts that need to be determined in handling trademark cases. The following factors should be considered when determining a well-known trademark: (1) The degree of awareness of the trademark by the relevant public; (2) The duration of use of the trademark; (3) The duration of any publicity work for the trademark, The degree and geographical scope; (4) the record of the trademark being protected as a well-known trademark; (5) other factors that make the trademark famous. During the review of trademark registration and the investigation and handling of trademark violation cases by the industrial and commercial administrative departments, if the parties claim rights in accordance with Article 13 of this Law, the Trademark Office may determine the well-known status of the trademark based on the needs of reviewing and handling the case. During the handling of trademark disputes, if a party claims rights in accordance with Article 13 of this Law, the Trademark Review and Adjudication Board may determine the well-known status of the trademark based on the needs of handling the case. During the trial of trademark civil or administrative cases, if a party claims rights in accordance with Article 13 of this Law, the people's court designated by the Supreme People's Court may determine the well-known status of the trademark based on the needs of hearing the case. Producers and operators are not allowed to use the words "well-known trademark" on commodities, commodity packaging or containers, or in advertising, exhibitions and other commercial activities.