14 December 2021

Proton Motor Power Systems plc

("Proton Motor" or the "Company")

Publication of Circular

Proton Motor Power Systems plc (AIM: PPS), Europe's leading designer, developer and producer of fuel cells and electric hybrid systems with a zero-carbon footprint, announces that further to the Company's announcement on 13 December 2021, the shareholder circular containing a notice of general meeting of the Company to be held at Proton Motor Fuel Cell GmbH, Benzstrasse 7, 82178 Puchheim, Germany at 10.00 a.m. on 29 December 2021,  ("Circular"), is now available on the Company's website at https://www.protonmotor-powersystems.com/, along with a form of proxy to vote at the general meeting of shareholders of the Company, as stated above.

For further information:

About Proton Motor Fuel Cell GmbH

Proton Motor has more than 20 years of experience in Power Solutions using CleanTech technologies such as hydrogen fuel cells, fuel cell and hybrid systems with a zero carbon footprint.  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, stationary and rail 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 Cell GmbH is a wholly owned subsidiary of Proton Motor Power Systems plc. The Company has been quoted on the AIM market of the London Stock Exchange since October 2006 (code: PPS).