OEM Agreement

Filtronic PLC 10 March 2004 FILTRONIC PLC: SELECTION BY MAJOR OEM AS NEW STRATEGIC SUPPLY PARTNER FOR WCDMA POWER AMPLIFIERS Filtronic plc ('Filtronic'), a leading global designer and manufacturer of customised microwave electronic subsystems for the wireless telecommunications and defence industries, announces that it has been selected by a new Original Equipment Manufacturer ('OEM') customer, as a Strategic Supply Partner for production quantities of the integrated radio frequency head units for use in 3G wideband code division multiple access base stations. This follows the announcement made on 22 September 2003 and the delivery by Filtronic of initial quantities of the first of these two products to this OEM. Two versions will be required, with production of the first version due to commence in the second half of calendar year 2004. Before volume deliveries can commence, Filtronic must finalise certain outstanding technical and commercial matters. Actions to complete these items are ongoing. The radio frequency head units to be supplied by Filtronic contain power amplifiers, which incorporate the unique, high power, compound semiconductor transistors manufactured in Filtronic's own fabrication facility at Newton Aycliffe. The products also contain the up/down converters and the high-speed digital CPRI baseband interface and processing capability. ENDS For further information, please contact: Filtronic plc - 07860 614 145 Professor J David Rhodes Executive Chairman John Samuel Finance Director Binns & Co PR Ltd - 020 7786 9600 or 07980 541 893 Peter Binns/Paul McManus Filtronic website: www.filtronic.com This information is provided by RNS The company news service from the London Stock Exchange

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Filtronic (FTC)
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