These are all important information of the enterprise, not to say that you can't give it, but don't give it to the wrong person and give it to the bad guys. I think it is very unsafe for you to get to know each other first, to know what kind of enterprise the other party is and whether it is reliable, and then both parties sign an agreement, and then copy the important documents to him without anything.

As for the power of attorney, that's even worse. You must trust the enterprise 100% to provide it, and there must be an agreement.

Knowing that the other company is 100% reliable, after signing the agreement, you can clearly mark on each copy: this copy is only for opening counters in shopping malls, and it is best to write words covering some words on the copy, so that even if the other party wants to erase your mark, it is impossible.