Talvivaara Invests More than EUR 13 Million in Environmental Technology

Stock Exchange Release
Talvivaara Mining Company Plc
24 April 2012


    Talvivaara Invests More than EUR 13 Million in Environmental Technology


Highlights

  * New technologies to improve the quality of effluent waters, reduce odour
    emissions into surrounding areas and limit dust emissions
  * The investments include reverse osmosis technology to improve the quality of
    effluent waters and a catalytic burning unit to treat hydrogen sulphide
    odour-generating gases
  * Talvivaara is also building a water recycling system and drilled wells to
     reduce water intake from nearby lakes
  * Dust emissions will be reduced by a new dust removal system at the materials
    handling screening hall


Talvivaara  Mining  Company  Plc  ("Talvivaara"  or  the "Company") has signed a
contract  with the Dutch company Lenntech BV  for delivery of a reverse osmosis-
based  water treatment system. The facility will  cost EUR 4 million and it will
be  commissioned  by  the  end  of  November  2012. The  system  consists of two
production  lines, each  with a  purified effluent  output of  70 m(3)/h, and an
additional  contractual option  for a  third line.  The choice of technology and
scaling  of  the  facility  followed  the  promising  results  of  pilot testing
conducted with Teollisuuden Vesi Oy.

Talvivaara  has also entered into a contract with the Finnish technology company
Formia  Emissions  Control  Oy  for  the  delivery  of a catalytic burning unit,
primarily  designed  to  eliminate  odour  emissions.  The unit will cost EUR 4
million  and it will be commissioned by  the end of 2012. The investment is part
of Talvivaara's own target to reduce odour emissions at and around the minesite.
Effectiveness  of  the  technology  has  been  verified  with  a pilot plant. In
addition to reducing emissions and odours, the commissioning of the Formia Smart
burning  unit  will  enable  Talvivaara  to  reduce the consumption of chemicals
currently used in the process in an energy-efficient manner.

Permit limits for emissions proposed by the Company achievable ahead of schedule

In addition to the investments detailed above, over the past year Talvivaara has
increased  the recycling  of process  waters within  the minesite  and initiated
construction of drilled wells at the open pit mine. The drilled wells reduce the
need  for water intake from surrounding lakes. The drilled well-system and water
recycling  will reach full scale  and scope by the  end of May 2012. The cost of
these investments totals EUR 3.1 million.

As  a  result  of  the  measures  taken  in  2011-2012, Talvivaara  has  already
significantly reduced the sulphate and manganese content in effluent waters. The
new  water treatment investments will further  considerably reduce the levels of
sodium,  sulphate and manganese in effluent waters by the end of 2012. The lower
permit  limits proposed by the Company for 2015 will hence be achievable already
in  early 2013. Further development measures to improve the water balance of the
mine will also continue following the investments announced today.

Reduced dust emissions from materials handling

Additionally,  in June 2012 Talvivaara will initiate the implementation of a new
dust  removal system in  the materials handling  screening hall, following which
screening  hall dust emissions will decline to below 10 mg/m(3) during 2012. The
cost of the investment will be EUR 2 million.

All  of these  initiated and  partially already  completed investments  are part
Talvivaara's  environmental improvement strategy announced in January 2012. More
information on the Company's sustainability targets and improvement measures are
detailed  in  Talvivaara's  2011 Annual  Report,  corporate  website  and on the
Finnish language environmental website www.paikanpaalla.fi.

Enquiries:
Talvivaara Mining Company Plc Tel: +358 20 7129 800
Harri Natunen, Chief Executive Officer as of 26 April 2012
Kari Vyhtinen, Chief Investment Officer
Veli-Matti Hilla, Environmental Manager

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  estimated  to  support  anticipated  production  for  several decades.
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.


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