Director/PDMR Shareholding

NOTIFICATION OF TRANSACTIONS OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL RESPONSIBILITY OR CONNECTED PERSONS

Mr. Alun Hughes Griffiths, a person discharging managerial responsibilities of WS Atkins plc (the "Company"), notified the Company on 26 June 2012 that on 25 June 2012 in London he acquired and then sold 16,222 ordinary shares of 0.5 pence each in the Company following the exercise of nil cost options awarded under the Atkins Deferred Bonus Plan. The share price at which Mr. Griffiths exercised and sold his shares was £6.8925 per ordinary share. The acquisition of 16,222 shares equated to 0.0162% of the voting issued share capital.

Mr. Griffiths' total interest in shares following this notification is 34,123 ordinary shares, representing 0.0341% of the voting issued share capital of WS Atkins plc.

This notice is given in fulfillment of the obligations under DTR 3.1.4R (1).

Ashley Gerrard

Company Secretarial Assistant - Graduate Trainee

Telephone: +44 (0) 1372 752576

26 June 2012