Stock Exchange Release Talvivaara Mining Company Plc 9 February 2011 Notice of Financial Results 2010 on 17 February 2011 Talvivaara Mining Company Plc will announce its preliminary results for the 12 months ended 31 December 2010 on Thursday 17 February 2011 at 7:00 am UK / 9:00 am Finland. A combined presentation, conference call and live webcast on the Annual Results will be held on 17 February 2011 at 12:00 GMT/14:00 EET at Hotel Scandic Simonkenttä, Simonkatu 9, Helsinki, Finland. The presentation will be held in English. http://qsb.webcast.fi/t/talvivaara/talvivaara_2011_0217_Q4/ A conference call facility is available for participants joining via telephone and there will be a Q&A following the presentation. Listen via teleconference: Europe & U.K Participants: +44 (0)20 7162 0077 US Participants: +1 334 323 6201 Finnish Participants: +358 (0)9 2313 9201 Conference id: 886274 Further details on the event can be found on the Talvivaara website, www.talvivaara.com. The webcast will also be available for viewing on the Talvivaara website shortly after the event until December 2011. ENQUIRIES Talvivaara Mining Company Plc Tel: +358 20 7129 800 Saila Miettinen-Lähde,CFO Timo Laatio, Investor Relations Talvivaara Mining Company Plc Talvivaara Mining Company is 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 agreement 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. [HUG#1487223]