Holding(s) in Company

For filings with the FSA include the annex

For filings with issuer exclude the annex

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: ii

Avon Rubber plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

No

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

No

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

No

An event changing the breakdown of voting rights

No

Other (please specify):

ISC increase

Yes

3. Full name of person(s) subject to the notification obligation: iii

Gartmore Investment Limited

4. Full name of shareholder(s)  (if different from 3.):iv

See attached schedule

5. Date of the transaction and date on which the threshold is crossed or reached: v

29 September 2010

6. Date on which issuer notified:

1 October 2010

7. Threshold(s) that is/are crossed or reached: vi, vii

13%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type of shares

if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB0000667013

3,428,790

3,428,790

3,269,512

3,269,512

10.642%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date xiii

Exercise/ Conversion Period xiv

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date xvii

Exercise/ Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

CFD

N/A

N/A

N/A

609,278

Nominal

Delta

1.983%

Total (A+B+C)

Number of voting rights

Percentage of voting rights

3,878,790

12.625%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: xxi

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

All figures are based on the Company's issued share capital of 30,723,292 as provided by Exshare

14. Contact name:

Alison Averno, Head of Data Administration, Investment Operations email: [email protected]

15. Contact telephone number:

020 7782 2224

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in share

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

Avon Rubber plc

Contact address

(registered office for legal entities)

Hampton Park West, Semington Road, Melksham, Wiltshire SN12 6NB

Phone number & email

01225 896850

Other useful information

(at least legal representative for legal persons)

M Ingrey-Counter, Company Secretary

B: Identity of the notifier, if applicable

Full name

Gartmore Investment Limited

Contact address

Gartmore House, 8 Fenchurch Place, London EC3M 4PB

Phone number & email

020 7782 2224 [email protected]

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

Alison Averno, Head of Data Administration, Investment Operations

C: Additional information

For notes on how to complete form TR-1 please see the FSA website.

Fund Managing Co.

Number of shares held

Percentage of Issued Capital

UK Registered owner

Beneficial Owner

Equities

Gartmore Fund Managers Limited

958,044

3.118%

HSBC Global Custody Nominee UK Ltd

Gartmore Fund Managers Limited A/C Gartmore UK & Irish Smaller Companies

Gartmore Investment Limited

1,208,482

3.933%

Nortrust Nominees Limited

Strathclyde Pension Fund

Gartmore Investment Limited

1,102,986

3.590%

BNY GIL CLT Account Nominees Ltd

Gartmore Fledgling Trust PLC

3,269,512

10.642%

Contract for Difference

Gartmore Investment Limited

609,278

1.983%

Vidacos Nominees Ltd A/C 2303

The Alphagen Volantis Fund Limited

609,278

1.983%

3,878,790

12.625%