Director/PDMR Shareholding

ATKINS SHARE INCENTIVE PLAN ("the Plan")

In accordance with Paragraph 3.1.2 of the Disclosure and Transparency Rules, WS Atkins plc ("the Company") was notified on 16 September 2010 that on 15 September 2010 the Trustees of the Plan purchased ordinary shares of 0.5 pence each in the Company at a price of £7.179341 per share on behalf of the directors and persons discharging managerial responsibilities, as set out below:

* Denotes director of the Company.

Helen Baker

Assistant Company Secretary

16 August 2010

Telephone: +44 (0) 1372 752401