Our Executive Board, the highest level of executive management for our Group, sets the strategic framework to the Chief Executive Officers, who spearhead each business unit and assume direct responsibility for performance as well as operational quality and effectiveness.
Executive Board
Heinrich Jessen, Chairman
Heinrich Jessen started his career as a tropical biologist before joining the family enterprise in 1995. In Jebsen & Jessen, he has worked as group director – environment, health & safety, general manager of two of the group’s packaging companies and regional managing director of its material handling joint-venture MHE-Demag. He has been chairman of Jebsen & Jessen’s executive board since 2010. He is also partner and director in the four other independent business groups that together make up the Jebsen & Jessen Family Enterprise.
Mr Jessen is a member of the Eastern Asia Review Commission of Air Liquide International and an Advisor to the Singapore Institute of International Affairs. He is also a member of the Yale University President’s Council on International Activities and a member of both the Steering Committee and the Dean’s Leadership Council of the Yale School of the Environment. He is Past Chairman of the Young President’s Organization Intercontinental Chapter and has previously served on the boards of the Singapore National Employers Federation, the United World College of South East Asia, the Parkinson’s Disease Society of Singapore and the Singapore Environment Council. He was awarded Singapore Businessman of the Year in 2016.
Mr Jessen earned a B.Sc. from George Washington University and an M.E.M. from Yale University.
Per Magnusson, Group Chief Executive Officer
Per Magnusson has been with the group since 2008 and has been a member of the Executive Board since 2015. Mr Magnusson is responsible for the Technology, Packaging, and Life Sciences business units as well as the emerging markets and group functions such as Finance, HR and Strategy.
Mr Magnusson is also a member of the board of the global mining and abrasives group GMA Garnet, a council member of the Singapore Business Federation and is the chairman of the Singapore International Chamber of Commerce.
Mr Magnusson is a Swedish citizen and holds Master’s degrees in Electrical Engineering from top-ranked universities in Sweden (Chalmers University) and Canada (University of Waterloo). He also holds a Master’s degree in Business Administration from Uppsala University, Sweden.
Chief Executive Officers
Lim Siew Tin
Martin Overgaard Hansen
Martin Overgaard Hansen joined our Malaysia-based life sciences business unit on 1 February 2023 to oversee it as CEO, while being supported by his predecessor, Jakob Helms, who transitioned into the Executive Director role of JJ-Lurgi on 1 March.
Mr Overgaard has a long history in different industrial management roles, including Group Senior Vice President at international EPC provider Andritz, and CEO of Glunz & Jensen, a Danish stock-listed and globally active machine maker. Mr Overgaard is a Danish citizen with an MSc in Business Administration.
JJ-Lurgi, Jebsen & Jessen Group’s joint-venture with Air Liquide, is a full-fledged engineering practice and leading innovator in the field of oils & fats, oleochemicals, and biodiesel. With a branch office in China, the company delivers projects for customers across the region and globally. ► Email contact
Chang Chee Keong
Chang Chee Keong was appointed Chief Executive Officer of Jebsen & Jessen Packaging in January 2026. He joined the Group in 2019 and has held various leadership roles, including Deputy CEO for Packaging prior to his current appointment. He brings extensive experience in regional business growth and operational excellence and he now leads the Packaging business with a focus on sustainable and profitable expansion across Vietnam, Indonesia, Singapore and Malaysia. ► Email contact
Per Magnusson
Per Magnusson is responsible for the operations of Technology business unit across the region. Mr Magnusson is a Swedish citizen and holds a Masters degrees in Electrical Engineering from top-ranked universities in Sweden (Chalmers University) and Canada (University of Waterloo). He also holds a Master’s degree in Business Administration from Uppsala University, Sweden. ► Email contact
Stephan Kirsch
Stephan Kirsch was appointed CEO of GMA in 2025, having served on the Advisory Board for several years prior. He brings extensive global leadership experience from senior executive roles across the mining, minerals, and engineering sectors. His focus will be on accelerating profitable growth, strengthening operations, and advancing innovation and sustainability. ► Email contact
Mark Gabel
Mark Gabel became the CEO at MSM in 2018. He is a seasoned executive with over 20 years of experience in wholesale and retail sales, as well as after-sales management, across emerging and developed markets worldwide. His career began at Daimler, where he spent more than 10 years in after-sales support. ► Email contact
Internal Management
Viktor Leendertz
Chief Financial Officer
Viktor Leendertz is the Chief Financial Officer of the Jebsen & Jessen Group. Mr Leendertz takes on overall responsibility for he Group’s financial, IT and risk infrastructure, including group finance & treasury, tax and internal audit, IT, corporate legal affairs, as well as the group shared service center The HUB.
Olivia Chua
Chief Human Resource Officer
Olivia Chua is the Chief Human Resources Officer of Jebsen & Jessen Group and has close to 20 years of experience working with Accenture, Hay Group and Towers Watson.
Based in Malaysia, Ms Chua is responsible for the Group’s human capital initiatives. Prior to joining the Group, Ms Chua was Senior Vice President and Head of Human Resources for Valiram Group.
