Due to the special situation of developing countries and the financial crises in these countries, it is not possible to provide the capital needed to implement large projects easily, so choosing the right financing method for projects is an important issue.
In many projects, due to issues such as the high amount of capital required, the high sensitivity of the project in terms of political, economic and security issues, the reluctance of foreigners to attend and invest, the issue of financing is brought to the attention of government officials. In a number of projects, the required funds can be provided with government support and credits, but in important and infrastructure projects needed by the country, it is not possible to provide full funds by the government, such as oil, gas, petrochemical projects and many other industries for development. Infrastructure There is a basic need for the presence of foreign investment and the use of the facilities of foreign banks and institutions.