ECAs currently finance or underwrite about US$430 billion of business activity abroad - about US$55 billion of which goes towards project finance in developing countries - and provide US$14 billion of insurance for new foreign direct investment, dwarfing all other official sources combined (such as the World Bank and Regional Development Banks, bilateral and multilateral aid, etc.). As a result of the claims against developing countries that have resulted from ECA transactions, ECAs hold over 25% of these developing countries' US$2.2 trillion debt.