Director/PDMR Shareholding

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

Mr. Alun Hughes Griffiths, a director and person discharging managerial responsibilities of WS Atkins plc (the "Company"), notified the Company on 27 August 2013 that on 23 August 2013 in London he purchased 495 ordinary shares of 0.5 pence each in the Company at £11.87 per share pursuant to the Company's Dividend Reinvestment Plan. This equated to 0.0005% of the voting issued share capital.

Mr. Griffiths further notified the Company on 27 August 2013 that on that 23 August 2013 in London his wife, Mrs. Mary Christine Griffiths, purchased 9 ordinary shares of 0.5 pence each in the Company at £11.87 per share pursuant to the Company's Dividend Reinvestment Plan. This equated to 0.000009% of the voting issued share capital.

Mr. Griffiths' total interest in shares following this notification is 36,946 ordinary shares, representing 0.0369% 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).

Carlie Nathan

Company Secretarial Administrator

28 August 2013

Telephone: +44 (0) 1372 752127