Grontmij N.V. announces that the Supervisory Board will nominate Mrs K.L. (Karin) Dorrepaal and Mr A. (André) Jonkman for appointment as member of the Supervisory Board. Both nominations will be put on the agenda of the Annual General Meeting of Shareholders (‘AGM’) of Grontmij N.V. on 23 May 2013. Until the AGM, Karin Dorrepaal and André Jonkman will participate in the discussions and meetings of the Supervisory Board as advisor. Mr Montagner will resign as member of the Supervisory Board with immediate effect due to health reasons.

Jan van der Zouw, Chairman of the Supervisory Board of Grontmij N.V.: ‘With Karin Dorrepaal and André Jonkman we will add two skilled people with relevant experience who will enhance the diversity of our board. Karin Dorrepaal has a long standing experience in the professional services industry in an international setting. With André Jonkman we welcome a well respected financial expert, very familiar with the world of engineering consultancy and with a rich and proven track record as CFO in a listed environment. I am convinced that Grontmij, in executing its Back on Track strategy, is going to benefit from their knowledge and expertise. I also like to sincerely thank Mr Montagner for his valuable contribution as member of the Supervisory Board to the company since 2010. We regret his resignation but understand his decision and wish him well.’

Both members will be nominated for appointment for a period of four years, as of 23 May 2013 until the AGM in 2017.

Curriculum vitae

Karin Dorrepaal (1961), who holds a PhD in Medicine and an MBA, joined Booz Allen & Hamilton, Management Consultants in 1990. In 2004 she joined Schering AG in Berlin where she became Member of the Executive Board until 2006. Currently she has her own advisory company and serves as member of the supervisory board/board of directors of Gerresheimer AG, Paion AG, Cryo-Save Group N.V and MDx Health N.V./S.A.

André Jonkman (1954) started his career in 1971 with KPMG Accountants. In 1988 he joined Fugro N.V. as group controller and was appointed CFO in 2001. In 2004 he became a member of the Board of Management of Fugro N.V. Mr. Jonkman is also a member of the Supervisory Board and Audit Committee of Dietsmann N.V.