18th April 2002

PLASMON PLC

Siemens selects Plasmon as Partner for long term Storage

Plasmon, a leading manufacturer of automated data storage libraries and developer of data management software, today announced that they have entered into a long term relationship with Siemens Medical, a leading provider of healthcare equipment, to provide optical archival storage.

This agreement covers Plasmon's NAS Archive Server system, which incorporates their full range of 5.25 inch MO and DVD optical libraries. The Plasmon NAS Archive Server solution, which will be developed in close cooperation with Siemens, will interface to the SIENET MagicStore and provide automated management of the optical archive, providing secure storage of up to 5.8TB growing to 36TB in the near future. This will ensure the availability of patient data and data security in conformance to the health care data storage regulations.

Siemens considers to also adopt Plasmon's UDO technology. UDO is the next generation of optical technology providing a roadmap of 30GB, 60GB and 120GB of rewritable and true WORM storage with the economies of DVD.

Plasmon and Siemens will continue to work together to meet the future requirements of medical PACS (Picture Archiving and Communication System).

Nigel Street, Chief Executive of Plasmon, said:

"This agreement demonstrates Plasmon's ability to provide total storage solutions. We look forward to a long relationship with Siemens providing them with a complete archival solution."

Enquiries:

Plasmon Plc (01763 261466) Citigate Dewe Rogerson (020 7638 9571)

Nigel Street (Chief Executive) Martin Jackson

Siemens (+49 9131 843473)

Thorsten Opderbeck Siemens Medical Solutions, Corporate Communications

E-mail: thorsten.opderbeck@siemens.com

NOTES TO EDITORS

About Siemens

Siemens Medical Solutions (Med) with headquarters in Iselin, NJ, and Erlangen, Germany, is one of the largest suppliers of healthcare equipment in the world. Med is renowned for its development of innovative products, services, and complete solutions ranging from imaging systems for diagnosis to therapy equipment for treatment, to electromedicine and hearing instruments to IT solutions that optimize workflow and increase efficiency in hospitals, clinics and doctors' offices. Siemens also offers a variety of data management solutions for customers and is currently the premier Applications Service Provider. Employing approximately 30,000 people worldwide, in fiscal 2001 (September, 30), Med reported preliminary sales of 7.2 billion EUR, orders of 8.4 billion EUR and EBITA of 808 million EUR.

About Plasmon

Founded in 1987, Plasmon is an international business specialising in the design and manufacture of high-end removable data storage solutions and has been listed on the London Stock Exchange since 1996 (LSE: PLM). Worldwide, Plasmon has over 500 employees and annual sales revenues in excess of $100m.

Plasmon's world-wide headquarters are in Cambridge in the UK where the company develops and manufactures 12-inch TrueWORM optical disk products and provides specialist technology consulting to the CD-R and DVD rewritable manufacturing industry. Storage management software and network attached storage products are also developed in the UK. European regional sales offices are located in Munich, Paris, Milan and Brussels. Plasmon also manufactures optical disc masters in Caen in northern France.

In Europe, contact Plasmon at: Whiting Way, Melbourn, Royston, Hertfordshire SG8 6EN; tel: +44 (0)1763 262963 fax: +44 (0)1763 264444 http://www.plasmon.co.uk.

e-mail: sales@plasmon.co.uk.

In the USA, Plasmon develops and manufactures optical disk and tape libraries and optical disk drives at its facility in Colorado Springs. Plasmon is the leading manufacturer of 12-inch TrueWORM optical disk drives and media and also supplies a wide range of storage solutions based on MO, CD/DVD and LTO tape storage technologies. Typical end-users of Plasmon products include banks, hospitals, insurance companies and government departments where the secure archival of large amounts of data are primary requirements. In North America, contact Plasmon at: 400 Inverness Drive So, Englewood, Colorado; tel: 800.451.6845 or 303.925.1855. http://www.plasmon.com e-mail: sales@plasmon.com.