Arcadis NV — Environmental & Social Information 2012

Jul 12, 2012

PRESS RELEASE

ARCADIS NV Gustav Mahlerplein 97-103 P.O. Box 7895 1008 AB Amsterdam The Netherlands Tel +31 20 2011 011 www.arcadis.com

ARCADIS AWARDED MAJOR CONTRACT FROM CODELCO IN CHILE

July 12, 2012 – ARCADIS (EURONEXT: ARCAD), a leading international consultancy, design, engineering and management services company, today announced that it has been awarded a major contract to provide EPCM services (Engineering, Procurement, and Construction Management) for the largest copper producer in the world, Codelco Chile, at its Salvador Division in the Atacama Region, in the Andes Mountains. This 15-month project with a contract value of US\$ 9.5 million will require the mobilization of about 100 professionals. It will be performed in cooperation between the Chilean and Brazilian offices of ARCADIS.

The contract for the "Engineering and Administration of the Construction, Staging, and Commissioning of the CT Slag Flotation Cleaning System at the Potrerillos Smelter, Salvador Division" concerns the construction of a smelter plant designed to minimize environmental impacts and maximize metallurgical yield. ARCADIS will be responsible for overall management of the project, providing engineering, procurement and construction management services and support for the start-up of the flotation plant.

The flotation process will enable Codelco to discontinue certain process steps, while treating the slag from copper concentrate smelts that were previously discarded. As a result, the process yield is higher. At the same time, the remaining flotation fluids that are disposed of in a tailings dam contain less ore-particles and water, increasing the useful life of the tailings facility. Through the new process the Potrerillos Smelter, reduces its emissions of SO2, ashes and particulate matter into the air.

"This is an excellent example of how the cooperation between ARCADIS offices in different countries can lead to synergies. With the Brazilian experience in large capital investment projects we can now also support Codelco with these services in Chile," said Hernan Bezamat, CEO of the Chilean ARCADIS activities.

For more information, please contact Joost Slooten at +31 (0) 20 2011083, or outside office hours at +31 (0) 6 27061880 or joost.slooten@arcadis.com

About ARCADIS:

ARCADIS is a leading international consultancy, design, engineering and management services company active in infrastructure, water, environment and buildings. We enhance mobility, sustainability and quality of life by creating balance in the built and natural environment. ARCADIS develops, designs, implements, maintains and operates projects for companies and governments. With 21,000 people and €2.4 billion in revenues, the company has an extensive international network supported by strong local market positions. ARCADIS supports UN-HABITAT with knowledge and expertise to improve the quality of life in rapidly growing cities around the world. Please visit: www.arcadis.com