Change of Nominated Adviser and Broker

4 December 2015

Hydrodec Group plc

("Hydrodec" or the "Company")

Change of Nominated Adviser and Broker

The Board of Hydrodec Group plc (AIM: HYR), the cleantech industrial oil re-refining group, announces the appointment of Canaccord Genuity Limited as its nominated adviser and broker with immediate effect.

For further information please contact:

The following information is provided in relation to the Directors pursuant to AIM Rule 17:

- Lord Moynihan was previously a director of ISPS Power of Sports Fund (a registered charity) (between 4 March 2012 and 4 March 2013), British Olympic Foundation (a registered charity) (between 7 June 2007 and 7 November 2012) and Team GB Limited (between 5 February 2010 and 7 November 2012).

- Mary Archer is a director of Cambridge Early Music (a registered charity).

- Andrew Black was previously a director of Sporting Informatics Limited (between 30 December 2008 and 4 April 2014) and Timeform Limited (between 13 May 2011 and 14 April 2014).

- For the purposes of paragraph (g)(v) of Schedule 2 to the AIM Rules for Companies, Caroline Brown resigned as a director of Play to Win TV Limited on 6 February 2007. Play to Win TV Limited entered liquidation on 1 July 2007.

- Alan Carruthers was previously a limited partner in Ingenious Film Partners LLP (between 24 March 2005 and 6 April 2010) and Ingenious Film Partners 2 LLP (between 21 December 2005 and 6 April 2011).

Notes to Editors:

Hydrodec's technology is a proven, highly efficient, oil re-refining and chemical process initially targeted at the multi-billion US$ market for transformer oil used by the world's electricity industry. Spent oil is currently processed at two commercial plants with distinct competitive advantage delivered through very high recoveries (near 100%), producing 'as new' high quality oils at competitive cost and without environmentally harmful emissions. The process also completely eliminates PCBs, a toxic additive banned under international regulations. Hydrodec's plants are located at Canton, Ohio, US and Young, New South Wales, Australia. In 2013, Hydrodec acquired the business and assets of OSS Group, the UK's largest collector, consolidator and processor of used lubricant oil and seller of processed fuel oil, with a national network of oil storage and transfer stations. Used oil is converted into processed fuel oil at OSS's plant at Stourport and principally sold on to the UK quarry and power industry. In April 2015, Hydrodec further acquired the business and assets of Eco Oil, a leading UK waste oil collector and supplier of recycled industrial fuel oil into the power and road stone industries. It is also one of four significant providers of waste management services to the marine industry in the UK, specifically oily-water slops or marine pollutant (MARPOL). In line with our stated intention to develop a base oil re-refinery in the UK, we have an exclusive licence agreement with California-based Chemical Engineering Partners (CEP) to develop the CEP wiped-film evaporation and hydrogenation technology in the UK as well as the basic engineering for a 75 million litre per annum capacity base oil re-refinery.

Hydrodec's shares are listed on the AIM Market of the London Stock Exchange. For further information, please visit www.hydrodec.com.