Spirax-Sarco Regulatory News (SPX)

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

Spirax-Sarco Engineering 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

First Eagle Overseas Fund, c/o First Eagle Investment Management, LLC (formerly known as Arnhold and S. Bleichroeder Advisers, LLC)

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

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

SEPTEMBER 1, 2010

6. Date on which issuer notified:

SEPTEMBER 2, 2010

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

3%

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

GB0008347048

2,313,702

2,313,702

2,057,880

2,057,880

2.67%

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

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

2,057,880

2.67%

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

First Eagle Overseas Fund is the direct holder of the shares. First Eagle Investment Management, LLC, formerly known as Arnhold and S. Bleichroeder Advisers, LLC, is the investment manager of the First Eagle Overseas Fund.

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:

As at the date of this notice, First Eagle Overseas Fund ("FEOF") directly holds 2,057,880 shares (representing 2.67% of the voting rights). FEOF is advised by First Eagle Investment Management, LLC ("FEIM"), formerly known as Arnhold and S. Bleichroeder Advisers, LLC. FEOF initially crossed the 3% threshold on October 2, 2003 when a purchase of 25,000 shares increased its position to 2,250,000 voting rights (3.03%), and has crossed various thresholds since that date. Since at least February 2003, FEIM has mad a number of filings with the Issuer in which the amount of voting rights held by FEOF was also disclosed. In March 2007, FEIM filed a Form TR-1 with the company and the FSA in which it disclosed that, as of January 20, 2007, FEOF held 3,705,780 shares and voting rights, or 4.90% of the voting rights outstanding.

14. Contact name:

Mark Goldstein, Counsel

15. Contact telephone number:

001-212-698-3101