First, if Minghui has not been registered, you can register it through the industrial and commercial department, which is not illegal. Just like Tianmu Lake Shahe Fish Head, it was a brand that was gradually formed in the past. Later, after it was registered by Tianmu Lake Hotel, it became a personal trademark

Secondly, if it has been registered, if it is a tea business. Master, if you have not yet set up a website or have not registered the domain name Minhui, you can still register it, but you are not allowed to make any publicity that is the same as or similar to that of the other party on this website. It is illegal to do so. If it is a professional website or portal website, it is not illegal

(Note: This is according to the trademark law, the same or similar trademarks are not allowed to be registered in the same field, but different industries can)

About 3, 4

Trademark registration is required

The website name is a trademark, and the trade name is a numerical code given to you