ARMS.L Regulatory News (ARMS)

Bumi plc (the "Company")

28 July 2011

For immediate release

Bumi Resources Step-Up Acquisitions and timing of Admission

On 30 June 2011 the Company announced that it had on that day entered into sale and purchase agreements with certain Selling Bumi Resources Shareholders pursuant to which the Company had agreed to purchase, and the Selling Bumi Resources Shareholders had agreed to sell, an aggregate of 676,646,359 shares in the capital of Bumi Resources (representing approximately 3.3 per cent. of the issued ordinary share capital of Bumi Resources) in consideration of the issue to such Selling Bumi Resources Shareholders of 11,735,108 Bumi Voting Ordinary Shares (the "Bumi Resources Step-Up Acquisitions").

A Second Supplementary Prospectus (as defined in the announcement of the Company dated 30 June 2011) was issued by the Company on 1 July 2011 in connection with the Bumi Resources Step-Up Acquisitions described above, such Second Supplementary Prospectus to be read and construed in conjunction with the prospectus published by the Company on 17 June 2011 (the "Prospectus").

Closing of one of the Bumi Resources Step-Up Acquisitions referred to above, relating to 608,622,222 shares in the capital of Bumi Resources, has yet to take place, and such closing is now expected to take place on or as soon as reasonably practicable after 29 July 2011.

As envisaged by the Prospectus and the Second Supplementary Prospectus (the relevant sections of which are described in the Appendix to this announcement), the time and date by which admission to the UK Listing Authority and to the London Stock Exchange ("Admission") may be sought using the Prospectus for any Bumi Voting Ordinary Shares issued or arising on conversion of Bumi Suspended Voting Ordinary Shares is now being extended from 5.00 p.m. (London time) on 31 July 2011 until 5.00 p.m. (London time) on 31 August 2011.

Capitalised terms not otherwise defined in this announcement have the meanings given to them in the Prospectus and the Second Supplementary Prospectus.

For further information, please contact:

Bumi plc: 020 7201 7510

Nick von Schirnding

J.P. Morgan Cazenove: 020 7588 2828

Ian Hannam

James Taylor

Neil Passmore

Finsbury: 020 7251 3801

Ed Simpkins

Charles Chichester

This announcement is an advertisement and not a prospectus and you should not subscribe for or purchase any shares referred to in this announcement except on the basis of information in the Prospectus, Supplementary Prospectus (as defined in the announcement of Vallar PLC dated 27 June 2011) and Second Supplementary Prospectus published in connection with the admission and proposed admission of certain ordinary shares to the premium listing segment of the Official List of the Financial Services Authority and to trading on London Stock Exchange plc's main market as more particularly described in the Prospectus. Copies of the Prospectus are available for inspection at Bumi plc's registered office at 2nd Floor, 4 Grosvenor Place, London, SW1X 7HJ.

J.P. Morgan Limited (which conducts its UK investment banking activities as J.P. Morgan Cazenove) ("J.P. Morgan Cazenove"), which is authorised and regulated by the Financial Services Authority, is acting for Bumi plc and no one else in connection with the Bumi Resources Step-Up Acquisitions (as defined in the Supplementary Prospectus and Second Supplementary Prospectus) and the Proposals and will not be responsible to anyone other than Bumi plc for providing the protections afforded to clients of J.P. Morgan Cazenove.

This announcement does not constitute or form part of any offer or invitation to purchase, otherwise acquire, issue, subscribe for, sell or otherwise dispose of any securities, nor any solicitation of any offer to purchase, otherwise acquire, issue, subscribe for, sell or otherwise dispose of, any securities.

The securities of the Company referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), and may not be offered or sold in the United States unless they are registered with the U.S. Securities and Exchange Commission or an exemption from the registration requirements of the Securities Act is available.

The release, publication or distribution of this announcement in certain jurisdictions may be restricted by law and therefore persons in such jurisdictions into which this announcement is released, published or distributed should inform themselves about and observe such restrictions.

This announcement does not constitute or form part of any offer or invitation to purchase, otherwise acquire, subscribe for, sell, otherwise dispose of or issue, or any solicitation of any offer to sell, otherwise dispose of, issue, purchase, otherwise acquire or subscribe for, any security, therefore this announcement does not constitute a public offering in Indonesia under Law Number 8 of 1995 regarding Capital Market.

Appendix

In the section entitled "Admission and Listing" of the Prospectus and in the section entitled "Supplementary Summary" of the Second Supplementary Prospectus, it is noted that Admission will not be sought using the Prospectus for any Bumi Voting Ordinary Shares issued or arising on conversion of Bumi Suspended Voting Ordinary Shares after 5.00 p.m. (London time) on 31 July 2011 (or such earlier or later time and/or date (not being later than 5.00 p.m. (London time) on 31 August 2011) as the Company may notify by announcement through a Regulatory Information Service) and that the Prospectus would cease to be valid in respect of any Bumi Voting Ordinary Shares issued or arising on conversion of Bumi Suspended Voting Ordinary Shares after such time and date (as extended where relevant).