Sweco

Transaction in Own Shares • Feb 22, 2011

PRESS RELEASE

22 February 2011

Sweco starts repurchases of treasury shares

SWECO AB (publ) is today starting a repurchase program in accordance with decisions of the AGM on 29 April 2010. Following the AGM, the board decided to, in accordance with the decision of the AGM, initiate the repurchase of Sweco shares in a number equal to not more than 10 percent of all issued shares in the Company. The authorization is valid until the AGM 2011.

The aim of the repurchase is to give the Board greater freedom of action in working to optimise the Company's capital structure. The repurchase will also create opportunities for the Company to use Sweco shares as consideration in connection with future acquisitions.

The repurchases will be made within the registered share price interval on each repurchase occasion. Sweco currently holds 559 073 class B treasury shares before the repurchase program starts. The shares represent 0.6 percent of total shares and 0.3 per cent of the votes.

Sweco is a provider of international consulting engineering services with combined expertise in engineering, environmental technology and architecture. The Group has annual sales of approximately SEK 5.3 billion and 5,400 employees in eleven countries. The company has projects currently underway in some 80 countries worldwide. Sweco is listed on NASDAQ OMX Stockholm AB.

For further information please contact: Bo Jansson, Vice President & CFO of SWECO, +46 8 696 66 06, +46 734 12 66 06. bo.jansson@sweco.se Fredrik Hedlund, Head of Communication of Sweco, +46 8 695 66 12, +46 734 12 66 12. fredrik.hedlund@sweco.se

The information contained herein is subject to the disclosure requirements of Sweco AB pursuant to the Swedish Securities Exchange and Clearing Operations Act and/or the Financial Instruments Trading Act. The information was submitted by Sweco for publication on 22 February, 12:15 CET .

Phone +46 8 695 60 00 E-mail info@sweco.se www.swecogroup.com

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