First of all, it is good to hear from Iran and we would glad to help you. You wellcome.
Let us understand the issues clearly then we should answer your questions.
1-are you going to set up a new company? Or willing to be a partner of a company?
2-if you set up a new one, what is the field of business going to be? You wrote whole sale, is it textile?
3-you need a personel bank account or business account in bank?
3-would you also willing to be a citizen?
4- no worries they are possible with letter of attorney.
We are waiting yoir answers