PÖYRY PLC Company Announcement 6 April 2010 at 12.45 p.m. We Energies, Milwaukee, Wisconsin has awarded Pöyry the engineering contract for a EUR 185 million capital project for a new 50 MW biomass cogeneration plant to be constructed at the Domtar paper mill facility in Rothschild, Wisconsin. The value of Pöyry's assignment is estimated at approximately EUR 6.5 million. Construction for the new facility is planned to start in the spring of 2011 with the biomass cogeneration facility in operation in late 2013. Pöyry's contract also includes an option for construction supervision, procurement and commissioning services. The new cogeneration facility will be designed to provide steam to the Domtar paper mill and is capable of providing a nominal power generation of 50 MW. The plant will utilise wood, wood waste and wood shavings to produce electricity and will be designed with the best available control technology to meet strict emission standards. Pöyry's assignment includes complete detail engineering. The biomass power plant will utilise the latest boiler and turbine technology to aid We Energies in meeting their renewable energy commitment. Pöyry brings We Energies an excellent resource for global knowledge and experience with local presence and know-how in Wisconsin. PÖYRY PLC Additional information by: Esa Ikäheimonen, CFO, Pöyry PLC Tel. +358 10 33 21586 Larry Londo, President, Pöyry (Appleton) LLC, USA Tel. +1 920 954 2000 Pöyry is a global consulting and engineering company dedicated to balanced sustainability. We offer our clients integrated management consulting, total solutions for complex projects and efficient, best-in-class design and supervision. Our in-depth expertise extends to the fields of energy, industry, urban & mobility and water & environment. Pöyry has 7000 experts operating in about 50 countries, locally and globally. Pöyry's net sales in 2009 were EUR 674 million and the company's shares are quoted on NASDAQ OMX Helsinki (Pöyry PLC: POY1V). DISTRIBUTION: NASDAQ OMX Helsinki Major media www.poyry.com [HUG#1400677]