This announcement is neither an offer to purchase nor a solicitation of an offer
to sell any securities. The offer described below is made only pursuant to the
Amended and Restated Offer to Purchase (as defined below) in those jurisdictions
where the securities or other laws require the offer to be made on behalf of the
Company (as defined below) by the dealer manager or one or more brokers or
dealers licensed or registered under the laws of such jurisdiction.

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               AVECIA GROUP PLC ANNOUNCES RESULTS OF THE OFFER TO
                 PURCHASE FOR CASH OUTSTANDING 11% SENIOR NOTES
                                DUE JULY 1, 2009

REG S NOTES (CUSIP G9894BAA6 AND ISIN USG9894BAA64), 144A NOTES (CUSIP 988788AA3
           and COMMON CODE 9875069) REGISTERED NOTES (CUSIP 05354RAA9,
                    ISIN US05354RAA95, COMMON CODE 010588502)

FEBRUARY 4, 2005 - In connection with its previously announced cash tender offer
and solicitation of related consents (the "Amended Offer") relating to its
outstanding 11% Senior Notes due July 1, 2009 (the "Bonds") pursuant to an
Amended and Restated Offer to Purchase and Consent Solicitation Statement dated
January 18, 2005 (as supplemented on January 21, 2005, the "Amended and Restated
Offer to Purchase"), Avecia Group plc (the "Company") announces that the period
for tendering the Bonds pursuant to the Amended Offer expired at 12:00 midnight,
New York City time yesterday, February 3, 2005.

All capitalized terms not defined herein have the meanings ascribed to them in
the Amended and Restated Offer to Purchase.

Pursuant to the terms of the Amended and Restated Offer to Purchase, the Company
will purchase up to 77% (U.S.$415,912,000) of the aggregate principal amount of
outstanding Bonds. At the Expiration Time, the Tender Agents (as defined below)
had received tenders from holders of the Bonds representing 98%
(U.S.$529,709,000) of the aggregate principal amount of outstanding Bonds.
Accordingly, the Bonds tendered by holders have been accepted for purchase by
the Company on a pro rata basis in accordance with the procedures set forth in
the Amended and Restated Offer to Purchase under "Summary of the Offer -
Proration". Following consummation of the Amended Offer, U.S.$123,988,000
aggregate principal amount of Bonds will remain outstanding.

Holders who have tendered the Bonds are deemed to have consented to the
Amendments to the Indenture under which the Bonds were issued.

The Total Consideration or Tender Offer Consideration, as the case may be, plus
accrued and unpaid interest up to (and including) February 3, 2005, on Bonds
accepted for purchase by the Company, will be paid today, February 4, 2005.

Goldman, Sachs & Co. is acting as the exclusive dealer manager for the Amended
Offer. The tender agent for the Amended Offer is Bondholder Services Corporation
and the Luxembourg tender agent for the Amended Offer is Kredietbank S.A.
Luxembourgeoise (together, the "Tender Agents").

The full terms and conditions of the Amended Offer are set forth in the Amended
and Restated Offer to Purchase. Holders of the Bonds can obtain copies of the
Amended and Restated Offer to Purchase by contacting Goldman, Sachs & Co. at 85
Broad Street, New York, New York 10004,







Attn: Liability Management Group on (212) 357 3019. Copies of the Amended and
Restated Offer to Purchase may also be obtained from the Tender Agents, Global
Bondholder Services Corporation, at 65 Broad Street - Suite 704, New York, New
York 10006, Attn: Corporate Actions on (212) 430 3774 or Kredietbank S.A.
Luxembourgeoise, at 43 Boulevard Royal, L-2955 Luxembourg, Attn: Cecilia
Guichart, Corporate Trust and Agencies Department, +352 47 97 39 35.

UNDER NO CIRCUMSTANCES SHALL THIS NOTICE CONSTITUTE AN INVITATION OR OFFER TO
SELL OR THE SOLICITATION OF AN INVITATION OR OFFER TO BUY THE BONDS.

THIS COMMUNICATION IS ONLY FOR CIRCULATION TO BONDHOLDERS AND TO OTHER PERSONS
TO WHOM IT MAY LAWFULLY BE ISSUED IN ACCORDANCE WITH THE FINANCIAL SERVICES AND
MARKETS ACT 2000 (FINANCIAL PROMOTION) ORDER 2001, ANY SUCH PERSON BEING A
"RELEVANT PERSON". THIS COMMUNICATION MAY NOT BE ACTED UPON BY ANYONE WHO IS NOT
A RELEVANT PERSON.


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