Rottneros — Environmental & Social Information 2010

Feb 2, 2010

PRESS RELEASE

Rottneros AB (publ) Box 600, SE-194 26 Upplands Väsby, Sweden Tel. +46 8 590 010 00 www.rottneros.com

Upplands Väsby, 2 February 2010

Rottneros investing in Vallvik

The board of Rottneros has approved an investment to be made in the soda recovery boiler at Vallvik Mill amounting to SEK 45m. This investment is the second stage of measures to improve the environment and general energy efficiency described in Rottneros' prospectus regarding the recent new share issue carried out. The investment is also part of the increase in capacity planned for the next few years. Installation is scheduled for the fourth quarter of 2010 in connection with the annual maintenance shutdown.

"The increased capacity for evaporation approved in December 2009 means that more of the mill's internal process water can be evaporated, which in its turn makes it possible to recover and incinerate the organic material. Put simply, this improvement to the soda recovery boiler increases the capacity for incineration, which increases Vallvik's output of bioenergy," explains Ole Terland, President and CEO of Rottneros.

For further information, please contact: Ole Terland, Chief Executive Officer, +46 8 590 010 00 Karl Ove Grönqvist, Chief Financial Officer, +46 8 590 010 00

NB

This information is such that Rottneros must disclose in accordance with the Swedish Securities Markets Act and/or the Financial Instruments Trading Act. The information was submitted for publication on 2 February at 09.45 CET.

Rottneros is an independent producer of market pulp. The Group comprises the parent company Rottneros AB, listed on NASDAQ OMX Stockholm, and its subsidiaries Rottneros Bruk AB and Vallviks Bruk AB with operations involving the production and sale of market pulp. The Group also includes the wood procurement company Rottneros Baltic SIA in Latvia and the sales company Rottneros S.A. in Belgium. The Rottneros Packaging AB division produces food packaging made from paper pulp. The Group has around 350 employees and had a turnover of approximately SEK 2.9 billion in the 2008 financial year.