Stock Exchange Release Talvivaara Mining Company Plc 19 March 2010 Restart of production process Talvivaara Mining Company Plc is pleased to announce that the metals recovery process at the Talvivaara mine has resumed after the Company had ensured that it was environmentally safe to restart the plant. A specialist team on site is continuing the reinforcement work at the settlement ponds. The priority has been and continues to be to minimise potential impact or damage to the environment. The stoppage did not have a material impact on the production targets. Further Information: Talvivaara Mining Company Plc +358 20 712 9800 Pekka Perä Chief Executive Officer Lassi Lammassaari Chief Operations Officer About Talvivaara Mining Company Plc. Talvivaara is a Finnish mining company operating a large open pit nickel mine in Sotkamo, Finland. Talvivaara aims to become an internationally significant base metals producer with its primary focus on nickel and zinc using a technology known as bioheapleaching to extract metals out of ore. Bioheapleaching makes extraction of metals from low grade ore economically viable. The Talvivaara deposits comprise one of the largest known sulphide nickel resources in Europe. The ore body is sufficient to support anticipated production for at least 46 years. Talvivaara has secured a 10-year off-take agreement for 100 per cent of its main output of nickel and cobalt to Norilsk Nickel and entered into a long term zinc streaming arrangement with Nyrstar NV. Talvivaara is listed on the London Stock Exchange Main Market and Nasdaq OMX Helsinki and is included in the FTSE 250 Index. Further information can be found at www.talvivaara.com <http://www.talvivaara.com/>. [HUG#1395615]