The Economic Cooperation Organization was originally formed in 1985 by Turkey, Iran and Pakistan but in 1992 the organization was expanded to include Afghanistan and the six primarily Muslim former Soviet republics: Azerbaijan, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan.
Organizaciju za ekonomsku suradnju izvorno su osnovali Turska, Iran i Pakistan 1985., ali 1992. organizacija je proširena na Afganistan i šest prvenstveno muslimanskih republika bivšeg SSSR-a: Azerbajdžan, Kazahstan, Kirgistan, Tadžikistan, Turkmenistan i Uzbekistan.