Directorate Change

20 October 2014

Hydrodec Group plc

("Hydrodec" or the "Company")

Appointment of Dame Mary Archer DBE to the Board as Non-Executive Director

Hydrodec Group plc (AIM: HYR), the cleantech industrial oil re-refining group, is pleased to announce that Dame Mary Archer, DBE has been appointed to the Board as a Non-Executive Director and as Chair of a new Safety and Technology Committee of the Board with effect from 1 November 2014.

Dame Mary studied chemistry at St Anne's College, Oxford, and physical chemistry at Imperial College, London, before becoming a lecturer at Cambridge University. Dame Mary is President of the National Energy Foundation and the UK Solar Energy Society. She was awarded the Energy Institute's Melchett Medal in 2002 and the Eva Philbin Award of the Institute of Chemistry of Ireland in 2007. Dame Mary has held prominent leadership roles in the NHS. She was appointed DBE in 2012 for services to the NHS.

Lord Moynihan, Chairman of Hydrodec, commented: "I am delighted to welcome Mary to the Board and as Chair of the Safety and Technology Committee. She brings a wealth of scientific and governance experience to the Board. Her access to academia and knowledge of the renewable energy sector will greatly strengthen the Board's ability to support the development of the Hydrodec business and technology."

For further information please contact:

The following information on Dame Mary Archer, DBE is provided pursuant to AIM Rule 17:

Full name and age: Dame Mary Archer, DBE (69)

(née Weeden)

Current directorships: Chairman, Cambridge Healthcare Limited

Director, icould Limited

Director, The Fund for Addenbrooke's Limited

Director, The UK Stem Cell Foundation

Director, The British Neurological Research Trust

Director, The Guild of Church Musicians

Director, Britten Sinfonia Limited

Previous directorships (past 5 years):

Director, The Independent Power Corporation PLC (resigned November 2009)

Director, Careers Research and Advisory Centre Limited (resigned February 2012)

Director, Cambridge University Health Partners Limited (resigned October 2013)

Interest in shares: None

There is no further information on Dame Mary Archer, DBE required to be disclosed under Schedule Two, paragraph (g)(iii)-(viii) of the AIM Rules for Companies.

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. Hydrodec recently 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, currently serviced by a fleet of more than 90 trucks which collect used oil and other garage workshop waste from over 30,000 customers. 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.

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