Specialist filtration, separation and environmental technologies group Porvair plc has seen revenues grow 20% in the first half of fiscal 2019.

In a trading update for the six months ended 31 May 2019, Porvair said profit for the period and earnings per share are expected to be ahead of the prior year and that trading is in line with management’s expectations.

Net cash at 31 May 2019 was just over £3 million after the group invested around £3 million in capital expenditure and acquisitions during the period.

Porvair’s interim results will be released on 24 June 2019.