and charcoal, hydroelectric power, and oil. Sudan is seeking to expand its installed capacity of electricity generation of around 300 MW;of which 180 MW is hydroelectric and the rest thermal. European investors, considering the continuing U.S. economic, trade, and financial sanctions regime, are the most likely providers of technology for this purpose. More than 70% of Sudan's hydropower comes from the Roseires Dam on the Blue Nile grid. Various projects are proposed to expand hydro-power, thermal generation, and other sources of energy, but so far the government has had difficulty arranging sufficient financing. A new dam which is being established in Merowe which has been opened in 2008 and generates 125 MW of electricity. Currency and banking Trade, sanctions, and foreign aid On 3 November 1997, the U.S. government imposed a trade embargo against Sudan and a total asset freeze against the Government of Sudan under Executive Order 13067. The U.S. believed the Government of Sudan gave support to international terrorism, destabilized neighboring governments, and permitted human rights violations. A consequence of the embargo is that U.S. corporations cannot invest in the Sudan oil industry, so companies in China, Malaysia and India are the major investors. Historically, the United States, the United Kingdom, the Netherlands, Italy, Germany, Saudi Arabia, Kuwait, and other Organization of Petroleum Exporting Countries (OPEC) nations traditionally have supplied most of Sudan's economic assistance. Sudan's role as an economic link between Arab and African countries is reflected by the presence in Khartoum of the Arab Bank for African development. The World Bank had been the largest source of development loans. Macro-economic trend The following table shows the main economic indicators in 1980–2017. See also List of companies based in Sudan Foreign trade of Sudan Tourism in Sudan References Economics in developing countries Economy of the Arab League Sudan