The Fund is based on contributions of its founders (Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan) and participants. Other States can also become founders, and international organizations, legal entities and individuals can become participants. Since 1998, the size of contributions is calculated from the budget revenues of Kazakhstan, Turkmenistan, and Uzbekistan in the amount of 0.3 per cent, and from the budget revenues of Kyrgyzstan and Tajikistan in the amount of 0.1 per cent.