Directorate Changes and Appointment of Auditor

Proton Power Systems plc

("Proton" or the "Company")

Directorate changes and appointment of Auditor

Proton Power Systems plc (AIM: PPS), the designer, developer and producer of fuel cells and fuel cell electric hybrid systems, announces the following changes of Director Responsibilities, effective from 20 December 2017:

Achim Loecher has resigned as Chairman and Company Secretary to pursue new challenges outside the Proton Group.

Helmut Gierse, a Non-Executive Director of the Company, is appointed as Chairman with immediate effect.

In addition to his Group Finance Director role, Roman Kotlarzewski will take on the function of Company Secretary.

Furthermore the Board of Proton today announces that it has appointed RMT Accountants & Business Advisors Ltd as its auditor following a comprehensive tender process.

Commenting on the changes, Dr. Nahab, CEO of Proton, said:

"The Board of Proton would like to thank Achim for his contributions to the Company."

"We are pleased that Helmut Gierse agreed to take on the role of Chairman. His deep and relevant industry experience in various leadership roles has already proven to be very valuable to the Board."

For further information:

About Proton Motor Fuel Cell GmbH

Proton Motor is an expert in Power Solutions using CleanTech technologies like industrial fuel cells, fuel cell and hybrid systems with more than 20 years of experience in this sector. Based in Puchheim near Munich, Proton Motor offers complete fuel cell and hybrid systems from a single source - from the development and production through the implementation of customized solutions. The focus of Proton Motor is on back-to-base, for example, for mobile, marine and stationary solutions applications. The product portfolio consists of base-fuel cell systems, standard complete systems, as well as customized systems.

Proton Motor serves IT, Telecoms, public infrastructure and healthcare customers in Germany, Europe and Middle East with power supply solutions for DC and AC power demand. In addition to power supply, SPower also offers solutions for Solar Systems as well as a new product line for Solar Energy Storage.

Proton Motor Fuel Cells GmbH is wholly owned subsidiary of Proton Power Systems plc. The Company has been listed on the London Stock Exchange since October 2006 (code: PPS).