B Share Scheme - Further Purchase Offer

Aggreko PLC - B Share Scheme - Further Purchase Offer

14 March 2012

B Share Scheme - Further Purchase Offer by Aggreko PLC

Aggreko PLC ("Aggreko") announces that it has today sent a letter to the holders of its B Shares outlining a proposed purchase offer in relation to its B Shares to be made by Aggreko, subject to certain conditions (the "Further Purchase Offer").

The B Shares were created pursuant to the return of approximately £150 million of cash approved by Shareholders on 5 July 2011, details of which were contained in the Circular to Shareholders dated 10 May 2011 (the "Circular"). The Return of Cash provided Shareholders with three alternatives in relation to their B Shares. As a result of elections made by Shareholders in June 2011, there are currently 6,663,731 B Shares outstanding.

Details of the Further Purchase Offer

The Further Purchase Offer, which is expected to be made by Aggreko on 30 April 2012, will offer the holders of B Shares the opportunity to sell all or some of their B Shares to Aggreko for 55.5 pence per B Share, free of all dealing expenses and commissions. Shareholders wishing to sell all or some of their B Shares should make an election to participate in the Further Purchase Offer in accordance with the instructions set out in the letter to holders of B Shares posted today. Elections to participate in the Further Purchase Offer must be received by Capita Registrars by 1.00 p.m. on 5 April 2012,

Settlement of the Further Purchase Offer is expected to be made on 3 May 2012. Full details of the Further Purchase Offer are contained in the letter to holders of B Shares posted today.

Terms defined in the Circular have the same meaning when used in this announcement.

For further information, please contact:

Peter Kennerley - Company Secretary - Tel: 0141 225 5926Helen Middlemist - Assistant Company Secretary - Tel: 0141 225 5917

None of the Existing Ordinary shares, New Ordinary Shares or the B Shares have been or will be registered under U.S. Securities Act of 1933 as amended (the "Securities Act") or the securities laws of any other U.S. jurisdiction, and none of them may be offered or sold in the United States unless pursuant to an exemption from, or in a transaction not subject to the registration requirements of, the Securities Act.

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, an offer to sell or the solicitation of an offer to subscribe for any securities, nor the solicitation of any vote or approval in any jurisdiction, nor shall there be any sale, issue or transfer of the securities referred to in this announcement in any jurisdiction in contravention of applicable law.END