Yes, the agency can apply online only after being trained and obtaining the key. Individuals can apply for trademarks directly at the Trademark Office lobby in Beijing, or they can entrust trademark offices in various places to apply.
Because there are currently a large number of registered trademarks, more than 4 million, and trademark applications are highly professional, it is recommended to apply with a local trademark agency.
You can also search for relevant information on Baidu to understand the problems encountered in trademark registration.