COMPLETED CONVERSION OF CLASS C SHARES TO CLASS B

COMPLETED CONVERSION OF CLASS C SHARES TO CLASS B 

2,500,000 class C shares, which have been issued and repurchased within the
framework of Sweco's share bonus programme, have been converted to shares of
class B.

The number of shares in the company after conversion amounts to a total of
92,002,110, of which 9,389,075 are class A shares and 82,613,035 are class B
shares. After conversion, Sweco holds 3,064,923  class B treasury shares. The
total number of votes in the company is 17,650,378.5. However, Sweco holds no
voting rights for the shares held in treasury. The company's share capital
amounts to SEK 92,002,110.

The year-end report for the financial year 2009 stated the number of treasury
shares at a total of 3,059,073. The change of 5,850 shares consists of shares
that the company has not needed to deliver to participants in the share bonus
programme.

For further information please contact:
Fredrik Hedlund, Head of Corporate Communications of Sweco, +46 8-695 66 12, +46
734-12 66 12

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 5,500 employees
in ten countries. The company has projects currently underway in some 80
countries worldwide. Sweco is listed on NASDAQ OMX Stockholm AB.

The information contained herein may be subject to the disclosure requirements
in the Swedish Securities Exchange and Clearing Operations Act and/or the
Financial Instruments Trading Act. The information was submitted by Sweco for
publication at  08.30 on 10 March 2010.