The European Commission is investigating the electricity supply arrangements between Romanian hydropower producer Hidroelectrica and aluminium producer Alro Slatina and seeking comments from interested third parties, the EC said recently, HotNews.ro informs. Hidroelectrica will send EC a formal reply in about 2-3 weeks, judicial administrator of Romanian hydroelectric company, Remus Borza, told Agerpres, according money.ro. In January 2011 the EC initiated an ex officio inquiry into potential state aid involved in the directly-negotiated long-term contract for the supply of electricity between the two companies. The contract was concluded in 2005 and successively amended until 2010. Alro Slatina is the largest industrial electricity consumer in Romania. Hidroelectrica, Romania’s second-cheapest electricity producer, is owned 80.06 pc by the Romanian state through the Ministry of Economy, Trade and the Business Environment, and 19.94 pc by the investment fund Fondul Proprietatea.