SOFIA (Bulgaria), April 27 (SeeNews) - Sofia BT, a cigarette making unit of Bulgarian majority state-owned tobacco firm Bulgartabac Holding, posted on Monday a loss of 4.7 million levs ($3.2 million/2.4 million euro) for the first quarter of 2009 against a loss of 4.1 million levs for the year-ago period, despite a rise in sales revenue.