IR events 2013

Date	Event
28 February 2013	Publication Annual Results 2012 Analyst meeting - Audio webcast
11 April 2013	Publication Grontmij Annual Report 2012
7 May 2013	Trading Update Q1 2013
5 August 2013	HY Results 2013
4 November 2013	Trading update Q3 2013

Closed periods
Closed periods will run from the 11th Dutch working day after the end of the relevant reporting period until the day of publication of the relevant results. Meetings with analysts, presentations to the latter and to investors (institutional or otherwise) and direct consultations with such investors shall not occur in these closed periods.

Closed periods 2013	Event
from 15 January up to & including 27 February 2013	Publication Annual Results 2012
from 16 April up to & including 6 May 2013	Trading Update Q1 2013
from 15 July up to & including 4 August 2013	Publication Half Year Results 2013
from 15 October up to & including 3 November 2013	Trading Update Q3 2013

Roadshows 2013

5 March 2013	the Netherlands
6 March 2013	London
7 March 2013	Edinburgh
19-20 March 2013	Chicago, Boston, New York
15 May 2013	London
29 May 2013	Helsinki, Copenhagen
30 May 2013	the Netherlands

Roadshows 2012

12 March 2012	Amsterdam
13 March 2012	the Netherlands
14 March 2012	London
15 March 2012	London
19 March 2012	Paris
26 March 2012	Zürich
10 April 2012	Copenhagen
10 & 11 May 2012	London
6 September 2012	London
13 September 2012	London
18 September 2012	Amsterdam
21 September 2012	Frankfurt