ATK.L Regulatory News (ATK)

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

Mr. Neil Thomas, a person discharging managerial responsibilities of WS Atkins plc (the "Company"), notified the Company on 19 February 2013, that on 18 February 2013 in London he acquired and then sold 5,400 ordinary shares of 0.5 pence each in the Company following the exercise of nil cost options awarded under the Atkins Deferred Share Plan. The share price at which Mr. Thomas exercised and sold his shares was £8.4375 per ordinary share. The acquisition of 5,400 ordinary shares equated to 0.0054% of the voting issued share capital.

Mr. Thomas' total interest in shares following this notification is 7,211 ordinary shares, representing 0.0072% 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

Telephone: +44 (0) 1372 752576

19 February 2013