The republic of Sudan is the largest African and Arabian country and lies in north-eastern Africa. The total land area is 2,505,810 km squared. The principal subsistence crops are sorghum and wheat. Other products include oil seeds, millet and gum arabic.
Sheep are also important.
The metric system is utilised. Sudan is a country of culture, language, historical and environmental diversity. RSA Exports - Recommended Terms Confirmed letter of credit. Foreign Exchange Administered by the Bank of Sudan, with the assistance of the authorised banks and specialised banks acting as exchange houses. However, rigidities in the market mean that commercial banks conduct informal rationing by making foreign exchange available according to the priorities established by each bank manager.