i would like to visit iraq for business purpose

If you want to visit Iraq with the intention of investing, you must obtain a visit invitation either from the Investment Authority or from one of the companies that wish to partner with them, and then you can go to the Iraqi embassy and apply for a visa, attaching the following to the application:
1) Copy of a valid passport for at least six months 
2) Two photographs with the same specifications of passport photo with white background for each
3) booking flight
4)Booked in a hotel 
5)Bank Statement 
6)A copy of the invitation letter