Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

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

Diploma plc

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

An acquisition or disposal of voting rights

YES 

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 event changing the breakdown of voting rights

Other (please specify):

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

Lincoln Vale European Partners

Master Fund, L.P.

Philip A. Cooper

Managing Partner

By: Lincoln Vale General Partner L.P.

Acting by its General Partners, Lincoln Vale European Partners GP LLC

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

 Lincoln Vale European Partners

Master Fund, L.P.

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

 August 11, 2009

6. Date on which issuer notified:

 August 13, 2009

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

 4.0%

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 Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights

Direct

Indirect

Direct

Indirect

 GB0001826634

 4,539,198

 4,539,198

 4,509,198

 4,509,198

 3.98%

B: Qualifying Financial Instruments

Resulting situation after the 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 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

Percentage of voting rights

 4,539,198

 3.98%

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

The voting interest of Lincoln Vale European Partners Master Fund, L.P. is entirely attributed to Lincoln Vale European Partners GP LLC, acting by its General Partner, Lincoln Vale General Partner L.P.

LEGAL ADDRESSES CARE OF

Lincoln Vale European Partners Master Lincoln Vale European Partners Master

Fund, L.P. Fund, L.P.

PO Box 309GT, Ugland House 55 Old Bedford Road

South Church Street, George Town Lincoln, MA 01773

Grand Cayman U.S.A.

Cayman Islands

Lincoln Vale European Partners GP LLC Lincoln Vale European Partners GP LLC

PO Box 309GT, Ugland House 55 Old Bedford Road

South Church Street, George Town Lincoln, MA 01773

Grand Cayman U.S.A.

Cayman Islands

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:

 Joseph A Zadlo

Associate, Lincoln Vale LLC

15. Contact telephone number: