Director/PDMR Shareholding

Proton Power Systems plc

("Proton Power" or the "Company")

Director Shareholding

Proton Power (AIM: PPS), the designer, developer and producer of fuel cells and fuel cell electric hybrid systems, announces that it has today been informed by its major shareholder Roundstone Properties Limited ("Roundstone"), a company connected with Dr. Faiz Nahab, Chief Executive Officer of the Company, that as a result of recent demand in the market for the Proton Power shares ("Shares") and in line with the Company's stated intention to improve liquidity of the Shares, it has yesterday sold 2,300,000 Shares at 6.15 pence per Share.

After this transaction, Roundstone's remaining shareholding is 596,279,682 Shares representing 93.18 per cent. of the issued ordinary share capital.

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About Proton Motor Fuel Cell GmbH

Proton Motor is an expert in industrial fuel cells, fuel cell and hybrid systems with more than 17 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 acquired SPower GmbH in 2013. Established in 2007, SPower 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).