Douyin will not infringe upon selling mobile phone cases. According to relevant public information inquiries, Douyin is not infringing if it is authorized to sell mobile phone cases, or if it purchases the phone cases from regular channels and has the right to resell them.

1. Article 57 of the "Trademark Law of the People's Republic of China" stipulates that any of the following acts shall constitute an infringement of the exclusive right to use a registered trademark: without the permission of the trademark registrant, Using the same trademark as its registered trademark on the same kind of goods.

2. Using a trademark that is similar to the registered trademark on the same product without the permission of the trademark registrant, or using a trademark that is the same or similar to the registered trademark on similar products, which may easily lead to confusion.

3. Selling goods that infringe the exclusive rights of registered trademarks.

4. Forgery or unauthorized manufacture of registered trademarks of others or sale of forged or unauthorized registered trademarks.

5. Without the consent of the trademark registrant, the registered trademark is changed and the goods with the changed trademark are put into the market.

6. Intentionally providing facilities for infringement of other people’s trademark exclusive rights and helping others to carry out infringement of trademark exclusive rights.

7. Causing other damage to others’ exclusive rights to registered trademarks.