Arcadis NV — M&A Activity 2014

Aug 8, 2014

Not for release, publication or distribution, in whole or in part, directly or indirectly in or into or from any jurisdiction where to do so would constitute a violation of the relevant laws of such jurisdiction.

8 August 2014

Hyder Consulting PLC ("Hyder")

Response to Recommended Cash Offer by

Nippon Koei UK Topco Limited

The Board of ARCADIS N.V. ("ARCADIS") notes the announcement of a recommended cash offer by Nippon Koei UK Topco Limited for Hyder Consulting PLC at a price of 680 pence per Hyder share, a 4.6 per cent premium to the ARCADIS offer made on 31 July 2014.

ARCADIS is considering its position and will make an announcement in due course.

Enquiries:

ARCADIS Joost Slooten	+31 (0) 20 201 1083
HSBC Bank plc (Financial Adviser to ARCADIS) Jurriaan de Munck James Pincus Alex Thomas	+44 (0) 207 991 8888
Rothschild (Financial Adviser to ARCADIS) Paul Simpson Neil Thwaites Jonathan Slaughter	+44 (0) 207 280 5000

Brunswick (Public Relations Adviser to ARCADIS) +44 (0) 207 404 5959 Michael Harrison Azhar Khan Marleen Geerlof

In accordance with Rule 30.4 of the City Code on Takeovers and Mergers, a copy of this announcement will be available on ARCADIS' website at: www.arcadis.com. The content of this website is not incorporated in and does not form part of this announcement.

This announcement is not intended to, and does not, constitute or form part of any offer, invitation or the solicitation of an offer to purchase, otherwise acquire, subscribe for, sell or otherwise dispose of, any securities, or the solicitation of any vote or approval in any jurisdiction, pursuant to this announcement or otherwise. Any offer will be made solely by certain offer documentation which will contain the full terms and conditions of any offer, including details of how it may be accepted.

This announcement has been prepared in accordance with English law and information disclosed may not be the same as that which would have been prepared in accordance with the laws of jurisdictions outside England.

The distribution of this announcement in jurisdictions other than the United Kingdom and the availability of any offer to shareholders of Hyder who are not resident in the United Kingdom may be affected by the laws of relevant jurisdictions. Therefore any persons who are subject to the laws of any jurisdiction other than the United Kingdom or shareholders of Hyder who are not resident in the United Kingdom will need to inform themselves about, and observe, any applicable requirements.