 Holders of European Union passports require an Entry Permit Letter issued by the Ministry of Foreign Affairs in Sukhumi, against which a visa will be issued upon presentation of the Letter to the Ministry.Abkhazia's fertile land and abundance of agricultural products, including tea, tobacco, wine and fruits (especially tangerines), have secured a relative stability in the sector.Electricity is largely supplied by the Inguri hydroelectric power station located on the Inguri River between Abkhazia and Georgia proper and operated jointly by Abkhaz and Georgians.