October 30 (SeeNews) - Bulgarian machine engineering company Hydraulic Elements and Systems (HES) [BUL:4HE] said on Tuesday that its net profit edged up to 3.95 million levs ($2.3 million/2.0 million euro) in the first nine months of the year from 3.78 million levs in the same period of 2017, as its sales revenue exceeded the business plan by 6%.