New Contract

Radstone Technology PLC
20 May 2005


For Immediate Release       20 May 2005 







                    Radstone Announces $26.7m Contract From

                      Raytheon Integrated Defense Systems



                    G4DSP Quad Processor selected again for

                            MK-48 ADCAP/ACOT program





Towcester, Northamptonshire: May 20th 2005:  Following clearance from its
customer, Radstone Technology PLC (LSE: RST) today announced that the company
had secured in March 2005 a $26.7 million contract from Raytheon Integrated
Defense Systems of Tewksbury, Massachusetts.



Radstone is to provide its G4DSP rugged digital signal processors for use in the
latest phase of the MK-48 Advanced Capability (ADCAP)/Advanced Common Torpedo
(ACOT) upgrade program, which is a joint development between the Naval Undersea
Warfare Center (NUWC) of Newport, Rhode Island and Raytheon Integrated Defense
Systems.  Also included in the order is a quantity of Radstone's PPC4A single
board computer. This most recent award brings the total value of orders received
on this program to over $38.0 million.



"As a business, we pride ourselves on our strength in listening to our customers
and developing the products they need," said Jeff Perrin, Chief Executive of
Radstone Technology.  "Beyond that, Radstone leads the industry in providing
long term support to our customers in programmes that can have a lifespan of
many years.  This order demonstrates once again that our strategy is the right
one and that it is able to deliver enduring success.  We're looking forward to
continuing to develop our excellent relationship with Raytheon."



The MK-48 ADCAP torpedo is the US Navy's premier heavyweight submarine-launched
torpedo and is widely recognized as the world's most capable anti-submarine
weapon. ADCAP is a wire-guided, thermal torpedo launched through the full
submarine's depth and speed profile.  The MK-54 LHT combines the search and
homing capability of the MK-50 with the propulsion system of the MK-46 to
deliver further improved lightweight torpedo performance in shallow water.



About Radstone Technology PLC



Radstone Technology PLC is a global provider of computer products and services
at the leading edge of the IT and electronics industry.  The Group's main
business, Radstone Embedded Computing, designs and manufactures embedded
computer products for defense and aerospace applications. Radstone's products
are all based on leading-edge commercial technologies.



Radstone Embedded Computing includes Radstone Digital Processing, which leads
the market in the development and delivery of rugged, high performance single
board computers, communications and networking modules and digital signal
processors;  ICS (Interactive Circuits and Systems), a leader in the field of
data acquisition and processing;  and Octec, a developer and manufacturer of
high performance real-time video tracking and image processing solutions.



Foundation Technology is the Group's Electronics Manufacturing Services
business, and provides a wide range of electronic manufacturing services
including design, development and fast-track prototype build, through to
component procurement, automated assembly and test.



For more information about Radstone Technology PLC and its business, products
and services, visit the company's web site at: http://www.radstone.co.uk.



For further information contact:


Radstone Technology PLC                    Tel: [phone]

Jeff Perrin, Chief Executive
Kevin Boyd, Group Finance Director

Buchanan Communications                    Tel: [phone]
Tim Thompson




                      This information is provided by RNS
            The company news service from the London Stock Exchange