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The supporting documents required to apply for a well-known trademark are:

1. Sales of goods using the trademark in China Volume and sales area;

2. The main economic indicators (annual output, sales, profits, market share, etc.) of the goods using the trademark in the past three years and their ranking in the same industry in China;

3. Sales volume and sales area of ??goods using the trademark in foreign countries (regions);

4. Advertising status of the trademark;

5 .The earliest time of use and continuous use of the trademark;

6. The registration status of the trademark in China and foreign countries (regions); 7. Other documents proving that the trademark is well-known.