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Manage­ment team

Kari Vyhti­nen (b. 1971)

CEO since March 2022



  • M.Sc. (Technology), mineral processing, Helsinki University of Technology. Executive MBA, Aalto University



  • November 2019 – February 2022: EVP, New Business, Nordkalk Oy
  • January 2017 – November 2019: COO, Nordkalk Oy.
  • Several leadership positions in the mining industry over the past 15 years.
  • Kari has broad and varied experience in efficiency improvement programmes, large capital projects and business development, including M&A.

Minni Lempi­nen (b. 1985)

CFO since January 2024

Acting CFO since June 2023

Board Secretary
Group Business Controller 2022-2023


Education: M.Sc. (Econ.), Aalto University


Experience: Extensive experience in financial management, reporting and control as well as industry expertise in the mining industry.



Ilkka Räty (b. 1986)

Chief Operations Officer since February 2024



DOM Diploma in Operations Management, Aalto University Executive Education 2019




Global Lean Manager, Swisspearl 2023–2024

Production Manager, Cembrit Kft 2021–2022

5S Coordinator / Lean & Continuous Improvement Coordinator, Nordkalk 2018–2020

Production Supervisor, Cembrit 2017–2018

Extensive international experience in optimising production processes




Sampo Hirvo­nen (b. 1981)

Chief Development Officer 2024–

Mine Manager since 2022

Production Manager 2021–2022

Area Manager 2018–2019

Mining Manager 2015–2018

Operating Engineer 2013–2015

Mine Foreman 2012–2013



Degree Programme in Technology Competence Management, Karelia University of Applied Sciences 2023

  • Bachelor of Engineering 2006



  • Extensive experience in underground mining and open-pit mining. Lean and development processes.



Jani Rautio (b. 1974)

Head Geologist since April 2022 Head of Geology, Endomines Oy (Finland), 2020–2022; Chief Mine Geologist (Pampalo) and Senior Geologist at Endomines Oy 2013–2020



  • M.Sc., University of Turku. Eurogeologist, Qualified Person in accordance with the JORC and NI 43-101 codes.



  • Various positions in mining and exploration companies, such as Outokumpu Mining, Sotkamo Silver Oy and Gold-Ore Resources Ltd, in Finland, Sweden and Southern Africa, 2000–2012. Extensive experience in exploration, mining geology and resource estimation.