Holding(s) in Company

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

Rotork plc

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

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: iii

T. Rowe Price Associates, Inc

4. Full name of shareholder(s)

(if different from 3.): iv

Bank of New York Mellon Bank, N.A.

Brown Brothers Harriman & Co.

JP Morgan Chase

National Australia Bank

Northern Trust Company

State Street Bank & Trust Co

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

21 February 2017

6. Date on which issuer notified:

23 February 2017

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

reached: vi, vii

Below 5%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB00BVFNZH21

44,287,220

43,639,106

43,869,607

43,259,363

4.97%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/ConversionPeriod xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

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

Resulting situation after the triggering transaction

Type of financialinstrument

Exerciseprice

Expirationdate xvii

Exercise/Conversionperiod xviii

Number of votingrights instrumentrefers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

43,259,363

4.97%

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

T. Rowe Price Associates, Inc. (TRPA) serves as investment adviser, with dispositive and voting authority, to various institutional clients that own shares of Rotork plc, including the T. Rowe Price New Horizons Fund, which owns 32,293,609 shares. Such shares are registered in the following name(s):

Bank of New York Mellon Bank, N.A. - 1,531,379

Brown Brothers Harriman & Co. - 46,666

JP Morgan Chase - 4,223,695

National Australia Bank - 150,350

Northern Trust Company - 879,432

State Street Bank & Trust Co - 36,427,841

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:

14. Contact name:

 Stephen R. Jones

15. Contact telephone number:

 01225 733331