1. Using a trademark identical with or similar to its registered trademark on the same or similar goods without the permission of the trademark registrant; 2. Selling goods that infringe the exclusive right to use a registered trademark; 3. Forging or manufacturing others' registered trademarks without authorization or selling forged or manufactured registered trademarks without authorization; 4, without the consent of the trademark registrant, change its registered trademark and put the goods with the changed trademark on the market again, which is called "reverse counterfeiting"; 5, causing other damage to the exclusive right to use a registered trademark of others.