Notice of Results

21 August 2014

Hydro International plc

("Hydro" or the "Group")

Notice of Results

Hydro International (AIM: HYD), a leading provider of environmentally sustainable and innovative solutions to water management challenges the world over, will be announcing Interim Results for the six months to 30 June 2014 on Tuesday 2 September 2014.

The management will be hosting a presentation to analysts on the day of results at 11 am at the offices of Newgate Threadneedle, Sky Light, City Tower, 50 Basinghall street, London EC2V 5DE.

Analysts who wish to attend the presentation should register their interest by emailing [email protected] or calling 020 7653 9850.

For further information please contact:

About Hydro International

Hydro International plc (AIM: HYD) (Hydro) is a global supplier of environmentally sustainable products and innovative solutions for the control and treatment of stormwater, wastewater and combined sewer overflows. Hydro's products use a range of advanced technologies including award-winning advanced vortex technology. Headquartered in Clevedon, North Somerset, Hydro also operates in the UK from offices in Ely, Cambridgeshire, as well as across the US from bases in Portland, Maine and Hillsboro, Oregon. The Group has a growing presence outside its core North American and UK markets in territories including: Ireland, the Middle East, Mexico, Brazil, Russia, the European Union, China, Malaysia, Singapore, Korea, Australia and New Zealand.

Please visit the website for further information www.hydro-int.com.