2. After receiving the lawyer's letter, try to check the products you produce and sell for the infringement mentioned in the letter. If there is any infringement, it is best to contact the obligee or the opposing lawyer to negotiate.
3. If it is a legal product, you can provide a sales contract and a supply list. If you don't know that it is an infringing product, you can stop selling it.
Legal basis: Article 57 of the Trademark Law of People's Republic of China (PRC) commits any of the following acts, all of which are violations of the exclusive right to use a registered trademark:
(1) Using the same trademark as its registered trademark on the same commodity without the permission of the trademark registrant;
(2) Without the permission of the trademark registrant, using a trademark similar to its registered trademark on the same kind of goods, or using a trademark identical with or similar to its registered trademark on similar goods is likely to cause confusion;
(3) selling goods that infringe upon the exclusive right to use a registered trademark;
(4) Forging or unauthorized manufacturing of registered trademark marks of others or selling forged or unauthorized registered trademark marks;
(five) without the consent of the trademark registrant, the registered trademark is changed and the goods with the changed trademark are put on the market again;
(6) Deliberately facilitating the infringement of the exclusive right to use a trademark of others and helping others to commit the infringement of the exclusive right to use a trademark;
(seven) causing other damage to the exclusive right to use a registered trademark of others.