Holding(s) in Company

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

Bumi 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 thenotification obligation: iii

Argyle Street Management Holdings Limited

Argyle Street Management Limited

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

Vidacos Nominees Limited

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

18th February 2013

6. Date on which issuer notified:

20th February 2013

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

Below 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

GB00B5BLXT62

0

251,887

0

0

7,788,089

0

4.31%

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

7,788,089

4.31%

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

Argyle Street Management Holdings Limited is the parent company of Argyle Street Management Limited which is the investment manager of ASM Hudson River Fund, ASM Asia Recovery (Master) Fund and ASM General Partner II Limited acting on behalf of ASM Co-Investment Opportunity Trust II LP. Vidacos Nominees Limited is the nominee which holds the shares on behalf of those funds' prime broker Citigroup Global Markets Limited.

Proxy Voting:

10. Name of the proxy holder:

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

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

13. Additional information:

None of the funds alone has a disclosable interest, but in aggregate their interests are disclosable.

14. Contact name:

Aaron Stocks

15. Contact telephone number:

0207 295 3319