ParOS signs further contract with Tropical SA

    9 November 2007

                                   ParOS plc                                   

                          ("ParOS" or the "Company")                           

       ParOS signs further advanced controller contract with Tropical SA       

ParOS, the AIM listed advanced control company, announces that ParOS Technology
EPE, its Greek subsidiary, has entered into a further commercial contract with
Tropical SA. The new contract is for the development of an advanced controller
for a 1kW reformed gas based fuel cell power generator. Fuel cell power is
particularly applicable in rural environments where there are ready sources of
gases for reforming and in applications where low weight to capacity,
environmental impact and noise are critical.

This is a further step in the Company's strategy to commercialise its
intellectual property in energy systems of the future.

Under the terms of the contract, which is worth Euro 50,000 in aggregate, ParOS
Technology EPE expects to recognise half of the revenue in the current
financial year and the remainder in the 2008 financial year.

The principle objective of ParOS continues to be the commercialisation of its
technology which is designed to provide cost effective, safe, sustainable and
environmentally responsible advanced control for the energy systems of the
future.

Patrick McHugh, Chairman and CEO of ParOS plc, said:

`The strategic alliance signed with Tropical SA in June 2007 continues to
establish potential commercial applications for the Company's technology. LPG,
methane, natural gas and biofuels need reforming to hydrogen for fuel cell
based electrical power generation. Our advanced controller is already proven in
this area.'

In addition, the Company is honoured that Harish Khajuria, whom it is
sponsoring for a PhD at Imperial College, has been awarded an Industrial
Fellowship by The Royal Commission for the Exhibition of 1851. Harish is
conducting research entitled "Advanced control and optimization of a hybrid
pressure swing adsorption energy system".

For Enquiries:

ParOS
Patrick McHugh Tel:                         020 3008 8223

Square1 Consulting Limited
Mike Feltham Tel:                           020 7929 5599

John East & Partners Limited
Simon Clements or Bidhi Bhoma Tel:          [phone]

Background information on ParOS

ParOS advanced optimisation and control solution technologies have been
developed by a team, led by Chief Technology Officer, Professor Pistikopoulos,
at Imperial College's Centre for Process Systems Engineering, over the last 15
years. In October 2007 ParOS was formally granted European Patent EP1399784 for
the use of its parametric Model Predictive Control ("MPC") technology. ParOS
became a spin-out company from Imperial College in January 2002 providing
energy saving advanced optimisation and control solutions to industry. In March
2006 ParOS plc was admitted to trading on AIM with a view to commercialising
its existing technologies and to utilising its intellectual property pipeline
agreement with Imperial College.

Advanced control, referred to as MPC, is achieved by repeatedly solving
optimisation problems online to determine the best control action, given the
sensor measurements at any given time and a desired target value for these
measurements. Until now providing hardware and software applications to support
MPC has been expensive and time consuming. ParOS technology overcomes these
obstacles using parametric optimisation techniques to determine MPC solutions
offline that run online with low cost process controllers. ParOS' solutions are
currently installed in the Automotive (Active Valve Train and Van
Refrigeration) and the Process (Air Separation Systems) Industries.

ParOS is developing control solutions for the energy systems of the future
including hydrogen storage in solid metal hydrides and portable and standby
hydrogen based fuel cells for use in power generation and transportation.

ParOS Technology EPE runs laboratory and product development projects in
Cyprus, undertakes product co-development initiatives in Greece and Cyprus and
leads business development activities and commercial negotiations with Greek
customers.

For further information please visit www.parostech.com

Background information on Tropical SA

Tropical SA, a privately held company, is the only Greek company dealing with
the research and development of fuel cells and hydrogen technologies and is
participating in 18 research projects with Universities and Institutes
worldwide. Tropical is an official member of the European Hydrogen and Fuel
Cell Technology Platform Industry Group. Tropical products are developments
from these technologies and include renewable energy products and fuel cell
powered vehicles.

For further information please visit www.tropical.gr

Background information on the Royal Commission for the Exhibition of 1851

The Royal Commission was established in 1850 by Her Majesty Queen Victoria to
organise the Great Exhibition. Prince Albert was appointed President and took
personal charge of the whole complex operation. The Exhibition was an enormous
success and as well as establishing the famous cultural estate of museums and
colleges in South Kensington made a substantial profit. There remained
sufficient funds for the Royal Commission to set up, in 1891, an educational
trust to perpetuate its aims. Today, with capital assets of over £40m, annual
charitable disbursement exceeds £1.6m. Through giving fellowships and grants to
pure research in science and engineering, applied research in industry,
industrial design and other projects, the Commission supports the development
of science and technology, and its profitable exploitation by British Industry.

For further information please visit http://www.royalcommission1851.org.uk



END