Interim Management Statement

12 April 2012

Aggreko plc

INTERIM MANAGEMENT STATEMENT

·; Very strong first quarter - both International Power Projects and the Local businesses delivering over 20% underlying revenue growth

·; International Power Projects secures 450 MW of new contracts year to date

·; Agreement to acquire Poit Energia expected to complete earlier than anticipated

Aggreko plc, the world leader in the supply of temporary power and temperature control, is today issuing its Interim Management Statement covering the period from 1 January 2012 to date.

Trading

The business has had a very strong first quarter, with both International Power Projects and the Local businesses delivering over 20% underlying revenue growth. Underlying Group revenues, which excludes revenues from major events (Asian Games in 2011 and London Olympics in 2012) as well as pass-through fuel and currency movements, grew by 21% in the three months to 31 March 2012. On a reported basis, revenues increased by 18%. Underlying trading margins were slightly above last year.

International Power Projects' revenues grew 21% in constant currency and excluding pass-through fuel; average MW on rent in the first quarter was 22% ahead of the prior year. Order intake has continued to be strong, with a further 150 MW of new projects secured since our full year results announcement on 9th March; this takes order intake for the year to date to 450 MW. The recent order intake includes 40 MW of new work in Asia and a 100 MW of gas-fuelled power-plant in the Dominican Republic; this project is for two years, and is worth around $80 million. The agreement, which is subject to closing conditions usual for a contract of this type, is described in more detail in a separate announcement also issued today. Trading margins in International Power Projects in the first quarter were at similar levels to last year.

Local business revenues in the first quarter in constant currency were up 21% on the prior year on an underlying basis; reported revenues were up 22%. Underlying revenues in our North American business in the first quarter were up 22%, maintaining the strong momentum with which we finished 2011. Revenues in Europe and the Middle East grew by 11% on an underlying basis; within this, rental revenues were up 15%, primarily driven by growth in Russia and parts of the Middle East. Aggreko International's Local business continued to perform very strongly with underlying revenues growing by 35% in the first quarter, with all areas performing well. Underlying trading margins in the Local business as a whole for the first quarter were a little higher than the prior year.

Financial position

Net debt at £428 million has increased by £63 million in the three months to 31 March 2012, reflecting the front loading of our capital spend, in part to build the fleet required for the London 2012 Olympics. This compares to net debt of £195 million at 31 March 2011; of the £233 million year-on-year increase £148 million was accounted for by the return of capital made to shareholders in July 2011 with the balance, as anticipated, mainly relating to higher levels of capital expenditure.

Acquisition of Poit Energia

As announced on 26 March 2012, Aggreko has entered into an agreement to acquire Poit Energia, a leading provider of temporary power solutions in South America. Good progress is being made securing pre-closing conditions and third-party consents, and we now expect that the transaction will complete during April, which is earlier than we originally anticipated.

Current Outlook

We have had a very strong start to the year in both the Local and International Power Projects businesses. The performance of the Local business for the year as a whole will depend upon trading in the summer months, but the current environment is favourable and is supported by the London Olympics which we now anticipate will have a contract value of around £50 million. International Power Projects has made an encouraging start to the year; strong order intake coupled with a healthy prospect pipeline means we expect to deliver strong growth for the year as a whole.

We continue to believe that we will deliver another year of good growth in 2012.

A conference call will take place today at 0830 BST. To join the call please contact Maitland on the number below for the dial in details.

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Enquiries to:

Rupert Soames / Angus Cockburn

Aggreko plc

Tel. 0141 225 5900

Neil Bennett/ Tom Eckersley

Maitland

Tel: 020 7379 5151