Please check whether you need visa to enter Iran. All types of visa defined by the government of the Islamic Republic of Iran can be applied for through the online visa application portal. For such a purpose, each foreign attendee may check with the nearest Iranian embassy/consulate or may check website of Evisa Department, Ministry of Foreign Affairs of the Islamic Republic of Iran (https://evisa.mfa.ir/en/).
Note: In order to apply for visa, please apply at least one month earlier the conference, otherwise maybe it is difficult to get visa.
If you need an official invitation letter, please contact us.