Filtration and environmental technology group Porvair plc has seen revenue growth of 18% (14% in constant currency) in the four months ended 31 March 2019.

In a trading update at the company’s recent Annual General Meeting, Porvair said that the Aerospace & Industrial division had started the year strongly, while the Metal Melt Quality division’s profitability had improved because of a better start to the financial year in China and improved efficiencies in the US.

Group profits for the period were in line with management’s expectations and the company said that order books are healthy.

Porvair will release its interim results for the six months ending 31 May 2019 on 24 June 2019.