OIC Iran's Topmost Export Destination

The Organization for Islamic Cooperation was the biggest destination of Iranian exports in the last fiscal year (March 2019-20) among global economic organizations.
Iran exported 76.89 million tons of non-oil goods worth $24.66 billion to OIC member states during the period, which shows a 25% and 0.9% rise in tonnage and value respectively compared with the previous year. 
OIC is an international organization founded in 1969, consisting of 57 member states, including Iran, with 47 countries being Muslim majority countries. Some, especially in West Africa—though with large Muslim populations, are not necessarily Muslim majority countries. The organization claims to be the collective voice of Muslim world and works to protect their interests in the spirit of promoting international peace and harmony.