Holding(s) in Company

TR-1

Notification of a Major Interest in Shares

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

ROTORK PLC

2. Reason for Notification

An acquisition or disposal of voting rights

X

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

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

An event changing the breakdown of voting rights

Other: Please Specify

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

AXA S.A, 25 Avenue Matignon, 75008 Paris and its group of companies

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

5.Date of the transaction and date in which threshold is crossed or reached

04/05/2010

6.Date on which issuer notified

05/05/2010

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

INCREASE IN TOTAL HOLDINGS FROM 4.99% TO 5.01%

8. Notified details:

A: Voting rights attached to shares

Class or Type of shares

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

Direct

Direct

Indirect

Direct

Indirect

750,695

4,322,871

4,322,871

185,451

185,451

4,147,870

0.21

4.79

B: Qualifying Financial Instruments

Resulting situation after triggering transaction

Type of Financial Instrument

Expiration date

Exercise / conversion period

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

Resulting situation after 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

4,333,321

5.01%

9.Chain

Name of the Company / Fund

Number of Shares

% of issued share capital

AXA IM UK

185,451.00

0.214322

Direct

AXA IM UK

4,147,870.00

4.793621

Indirect

Total Direct

185,451

0.21432

Total Indirect

4,147,870

4.79362

TOTAL

4,333,321

5.00794

Proxy Voting

10. Name of 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:

14. Contact Name

Stephen Jones

15. Contact telephone number

01225 733331