(1) Relevant materials proving that the trademark is known to the public;

(2) Relevant materials proving the service life of the trademark, including the history and scope of the use and registration of the trademark;

(3) Relevant materials proving the duration, degree and geographical scope of any publicity work of the trademark, including the way, geographical scope, type of publicity media and advertising amount of advertising and promotion activities;

(4) Relevant materials proving that the trademark is protected as a well-known trademark, including relevant materials that the trademark is protected as a well-known trademark in China or other countries and regions;

(5) Other evidential materials to prove that the trademark is well-known, including the output, sales volume, sales revenue, profits and taxes, sales area and other relevant materials of the main commodities using the trademark in the last three years.

Legal basis: Article 27 of the Trademark Law of People's Republic of China (PRC) shall be true, accurate and complete.