BANJA LUKA (Bosnia and Herzegovina), March 23 (SeeNews) – Bosnian coal mining and energy complex Ugljevik [BANJ:RTEU-R-A] said it slumped to a net loss of 2.0 million marka ($1.4 million/1.0 million euro) in 2010 from a net profit of 1.4 million marka a year earlier.