Mika Kauppinen Managing Director +358401590755 mika.kauppinen@hydnum.com Sanna Oja Sales and marketing +358503281969 sanna.oja@hydnum.com Esko Ahtiainen Production and maintenance +358407179422 esko.ahtiainen@hydnum.com Merja Poropudas Procurement and development +358400872805 merja.poropudas@hydnum.com Eero Kailaste Maintenance planning +358400488787 eero.kailaste@hydnum.com Jari Aho Quality and production development +358505320737 jari.aho@hydnum.com Sari Taajoranta Economics +358407242034 sari.taajoranta@hydnum.com Hannele Hytinkoski Personnel +358407713650 hannele.hytinkoski@hydnum.com Roni Kokkonen Data communications +358405021218 roni.kokkonen@hydnum.com Jani Snellman Production planning +358405256202 jani.snellman@hydnum.com Hydnum Oy Phone +358 (0)8 5336 600 Address Nokiantie 30, 91500 Muhos, Finland VAT number FI070836556