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Sappi, a leading global provider of sustainable woodfibre products and solutions, appointed Berry Wiersum as Chief Executive Officer of Sappi Europe S.A. on 15 January 2007. Berry retired as CEO in March 2021 and is currently Head of Regulatory Affairs for Sappi Europe.
Mr Wiersum started his career at ICI Fibres, held the position of President of Amoco Fabrics (Europe) followed by President of Amoco Chemicals (Europe). Following the takeover by BP, he joined BP to assist with the integration of the two groups in Europe. He then joined Pechiney SA in France and ran the CEBAL packaging division until he was recruited as Managing Director of the Packaging Division of Kappa Packaging BV (The Netherlands) and member of the Management Board responsible for paper manufacture and packaging in the Kappa group. Mr Wiersum was Chairman of CEPI (Confederation of European Paper Industries) from 2009 – 2011. In 2017 he was named RISI's European CEO of the year and International CEO of the year at the PPI awards.
Qualifications: MA (Medieval and Modern History)
Mr. Summanen has had 30 years of experience within strategic, tactical, engineering, and sales roles that have provided him with a global scope after doing work in China, Southeast Asia, the US, Canada, and several other European countries. He has held various key management positions at Valmet managing numerous projects, such as starting up 10 new paper machines. He has also held several sales and business management positions as well, including head of the technology unit for mill improvements by delivering rebuild solutions for paper mills across the globe. As Director of Service, he was responsible for international business agreements and developing new services’ business models. In his current role, he is leading Fisher International’s European team by guiding and supporting companies in the pulp & paper industry and helping them make data-driven business decisions. This work is conducted by a team of senior consultants and experts, supported by the world’s largest database for the pulp & paper industry — FisherSolve™ Next and other advanced tools like market model based forecasting tool Fisher-STE. Marko Summanen earned his Bachelor of Science degree in Automation Engineering from the Technical Institute of Jyväskylä in Finland.
Mr. Aarnisalo's career is marked by the development and supervision of numerous business models and market strategies, specifically tailored for global, European, Asian, and North American markets within the pulp and paper sector. His extensive experience extends to solving challenges in a variety of sectors, including forest products, public services, and energy industries.
Under Mr. Aarnisalo's leadership, STE Analytics has applied the system dynamics approach to industrial markets, aiding multinational corporations in understanding their operations as systems in relation to competitors and customers. His contributions have significantly influenced strategic planning, purchasing, product pricing, business valuation, M&As, and divestments.
Before taking up his role at STE Analytics, Mr. Aarnisalo had a successful 16-year tenure at System Thinking Europe, serving as Senior Consultant and Managing Director. His achievements there included providing successful assistance in M&A cases and litigations.
Mr. Aarnisalo holds a Master of Science degree in Physics and another in Economics. His strong academic background underpins his deep understanding of diverse business models and market dynamics.
Outside the professional sphere, Mr. Aarnisalo enjoys spending time in nature, particularly at sea, and reading.
