BANJA LUKA (Bosnia and Herzegovina), May 8 (SeeNews) – Bosnian coal miner and energy producer RiTE Ugljevik [BANJ:RTEU-R-A] said on Wednesday it turned to a net loss of 5.1 million marka ($3.4 million/2.6 million euro) in the first quarter of 2013 from a net profit of 3.5 million marka a year earlier.