Islamic Development Bank’s top officials have traveled to Tehran to sign the contract with the Iranian officials for the first part of the 3 billion-dollar loan they had agreed before. The first part of the loan will be paid to a few cities in the Southern Iranian province of Fars for implementing sewage projects. But there are other areas for which the 3-billion-dollar loan will be used. So far, the IDB has allocated loans to Iran in railway, water sources, environment, automotive and other sectors. With almost ten percent of the shares, Iran is the third major shareholder of the bank. The ratification of Iran's parliament to increase the countrie's share in IDB is pending.