During the first day of the official visit of Sultan of Oman Haitham bin Tariq Al Said to the Islamic Republic of Iran on Sunday afternoon, the officials of the two countries signed 4 documents in the field of economic and investment cooperation, cooperation in free zones and cooperation in the field of energy. 
The Ministers of Oil and Economic Affairs and Finance and the Secretary General of the Supreme Council of Free Commercial-Industrial and Special Economic Zones from Iran and the Ministers of Energy, Economy and Trade of Oman signed the joint cooperation documents to increase cooperation between the two countries.
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