In comparison, the company booked sales of 17.6 million levs ($9.7 million/9 million euro) in January-February 2023.
Sales in February alone are projected at 6.5 million levs, HES said in a bourse filing.
The company's revenue fell by 17.4% year-on-year to some 7.42 million levs in January, while its preliminary gross profit amounted to 857,000 levs.
Yambol-based HES is part of local diversified group Stara Planina Hold [BUL:SPH].
Shares in HES last traded on Wednesday when they closed at 5.45 levs on the Bulgarian Stock Exchange, bourse data show.
(1 euro = 1.95583 levs)