Holding(s) in Company

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

Filtrona plc

2. Reason for notification (yes/no)

An acquisition or disposal of voting rights

Yes

An acquisition or disposal of 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):______________

No

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

Ameriprise Financial, Inc. and its group

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

See additional information under 13.

5. Date of the transaction (and date on which the threshold is crossed or reached if different):

17 February 2010

6. Date on which issuer notified:

18 February 2010

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

Below the threshold of 5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares

if possible using the ISIN CODE

Situation previous to the Triggering transaction

Resulting situation after the triggering transaction

Number of Voting Rights

Number of shares

Number of voting rights

Percentage of voting rights

Direct

Indirect

Direct

Indirect

GB00B0744359

11,667,242

11,667,242

0

0

10,215,338

0.000%

4.967%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period/ Date

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

Percentage of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise / conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

% of voting rights

10,215,338

4.967%

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

Ameriprise Financial, Inc., which through intermediate holding companies controls the voting rights of Threadneedle Management Luxembourg S.A. and Threadneedle Asset Management Holdings Ltd, which itself controls the voting rights of Threadneedle Asset Management Ltd, Threadneedle International Ltd and Threadneedle Pensions Ltd.

Proxy Voting:

10. Name of the proxy holder:

N/A

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

N/A

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

N/A

13. Additional information:

Registered Owner

Littledown Nominees Ltd A/c 41408 82,266

Littledown Nominees Ltd A/c 03449 1,210,000

Littledown Nominees Ltd A/c 10479 7,350

Littledown Nominees Ltd A/c 18667 450,000

Littledown Nominees Ltd A/c 10469 594,175

Littledown Nominees Ltd A/c 10496 3,589,602

Littledown Nominees Ltd A/c 10492 1,445,798

Littledown Nominees Ltd A/c 10488 109,100

Littledown Nominees Ltd A/c 10495 2,705,000

Littledown Nominees Ltd A/c 02642 22,047

14. Contact name:

Jon Green, Filtrona plc

15. Contact telephone number:

01908 359100