How does Tobacco and Alcohol work?

Honestly, I really don’t know how it works regarding logistics.

For example, the nicotine pouches, who decides which companies can import their products.

I’ve asked several stores, and they have no idea. They just order what they can get.

Is there some group that say “yes we will import this”.

Can you campaign to get something imported?

Don’t even know what to search to understand this chain of logistics.

If anyone has any information I’d be glad to listen.