CEO Appointment

14 May 2013

Hydro International plc

("Hydro", the "Company" or the "Group")

CEO Appointment

The Board of Hydro International plc (AIM: HYD), a leading provider of environmentally sustainable and innovative products for the control and treatment of water, is pleased to announce the appointment of Michael Jennings who will be joining the Board as Chief Executive Officer on 22 July 2013.

Michael has spent his career in product-led technology businesses, in increasingly senior leadership positions with AlliedSignal, Ingersoll-Rand, and Flextronics. From 2004 he was Managing Director of BOC Edwards Industrial and Pharmaceutical Systems Division which had sales of €200m and 1000 employees.

In 2008 he personally led the successful sale of the Pharmaceutical Systems Division from BOC Edwards to a significant privately-held European industrial group where, as Managing Director, he has subsequently led the transformation of the business, achieving record sales and profits in 2012.

Michael has a track record of driving business growth through the development of commercial product strategies and through international expansion, where his experience includes the USA, Europe and Asia, as well as the creation of operations in China.

Michael will be based at Hydro's UK headquarters in Clevedon, Somerset.

Roger Lockwood, Chairman of Hydro International, commented:

"We have conducted a thorough recruitment process, and are delighted with the outcome. Michael brings a wealth of both strategic and operational experience in an international setting, and he is accustomed to the challenges we now face in taking Hydro to the next stage of its development. His arrival signals a major strengthening of our management talent and the team at Hydro is looking forward to working under his leadership.

"I look forward to introducing Michael to our shareholders in due course."

The following information on Michael Jennings is provided pursuant to AIM Rule 17:

Full name and age: Michael Gareth Brian Jennings (age 43)

Current directorships:

·; IMA Life North America Inc.(USA)

·; IMA Life The Netherlands B.V. (Netherlands)

·; IMA Life (Beijing) Pharmaceutical Systems Co. Ltd. (China)

·; IMA Life Italia S.r.l. (Italy)

·; IMA Life Japan KK. (Japan)

Previous directorships (past 5 years):

·; IMA Edwards Inc. (USA)

·; IMA Edwards B.V (Netherlands)

·; IMA Edwards Pharmaceutical Systems (Beijing) Co. Ltd. (China)

·; IMA Edwards S.r.l. (Italy)

·; IMA Edwards Japan KK. (Japan)

·; PSH MKCS Inc. (USA)

For further information please contact:

About Hydro International

Hydro International plc (AIM:HYD.L) (Hydro) is a global supplier of environmentally sustainable solutions and innovative products 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 of its core US and UK markets in Ireland, Egypt, Middle East, European Union, Malaysia, Singapore, Japan, Korea, Australia and New Zealand.

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