1-   Unions,  Cooperatives,  Public  Organizations  and  Government
 services connected with the Iranian national economy.
    2- Iranian and foreign producers or their official agents excluding
 intermediaries and retailers.
    3- States and State Organizations as well as International Agencies
 and  Foreign  Companies  whose  operations  are  compatible  with  the
 objectives of the fair.
    4- Businessmen engaged in activities related to commerce, Industry
 and International economy or their official agents.
    5-  Any other groups whose participation is approved by the centre,
 and whose operations are compatible with the objectives of the fair.