Bowleven Regulatory News (BLVN)

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

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

BowLeven PLC

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

An acquisition or disposal of voting rights

√

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):

Change to shares in issue

3. Full name of person(s) subject to thenotification obligation: iii

Hermes Equity Ownership Services Limited

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

Shares are held by the relevant custodian(s)

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

30 March 2012

6. Date on which issuer notified:

2 April 2012

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

3%

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

B04PYL9

GB00B04PYL99

8,618,494

8,618,494

9,382,264

3.18634%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period 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

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

9,382,264

3.18631%

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

BT Pension Scheme Trustees Limited, as trustee of the BT Pension Scheme ("BTPS") controls Britel Fund Trustees Limited, which is the parent undertaking of Hermes Fund Managers Limited ("HFML"). HFML is the parent undertaking of Hermes Equity Ownership Services Limited ("HEOS") (voting rights: 3.18631%)*

* This notification is being made in respect of HEOS, which is an indirect holder of shares for the purpose of DTR 5.2.1(h) as a result of control of voting rights in relation to such shares.

Proxy Voting:

10. Name of the proxy holder:

See Comment in Section 9.

11. Number of voting rights proxy holder will ceaseto hold:

See Comment in Section 9.

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

See Comment in Section 9.

13. Additional information:

14. Contact name:

Valerie Davidson ( v.davidson@hermes.co.uk )

15. Contact telephone number:

020 7680 2177

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in share

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

Hermes Equity Ownership Services Limited

Contact address

(registered office for legal entities)

1 Portsoken Street, London E1 8HZ

Phone number & email

020 7702 0888

Other useful information

(at least legal representative for legal persons)

B: Identity of the notifier, if applicable

Full name

Hermes Fund Managers Limited

Contact address

1 Portsoken Street, London E1 8HZ

Phone number & email

020 7680 2177

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

C: Additional information

Please contact Valerie Davidson the above number for further information.

Copy sent to Bowleven e-mail info@bowleven.com

Company Secretary Peter.Wilson@bowleven.com Company Secretarial Karen.Fraser@bowleven.com

For notes on how to complete form TR-1 please see the FSA website.