Yes, there are conditions for becoming a well-known trademark.

The following materials can be used as evidence to prove that a trademark is well-known: (1) Relevant materials that prove the relevant public’s awareness of the trademark; (2) Relevant materials that prove the duration of use of the trademark, including the use of the trademark , relevant materials on the history and scope of registration; (3) Relevant materials proving the duration, extent and geographical scope of any publicity work for the trademark, including the methods of advertising and promotional activities, geographical scope, types of publicity media and advertisements (4) Relevant materials proving that the trademark is protected as a well-known trademark, including relevant materials proving that the trademark has been protected as a well-known trademark in China or other countries and regions; (5) Relevant materials proving that the trademark is well-known Other evidence materials, including the production, sales volume, sales revenue, profits and taxes, sales area and other relevant materials of the main products using the trademark in the past three years