Our Executive Board, the highest level of executive management for our Group, sets the strategic framework to the regional managing directors, who spearhead each regional business 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. 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, Executive Vice Chairman

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.

Regional Managing Directors

Our regional business units operate autonomously, unified by our corporate values and business principles and code of conduct. Interwoven networks, integrated IT platforms, effective branding and proven leadership styles make all the difference in the face of competition.
Jebsen & Jessen - Mike Winzerling

Mike Winzerling


Mike Winzerling is the Regional Managing Director of JJ-LAPP responsible for operations across South East Asia. Mr Winzerling joined the Lapp group as a sales engineer in 2003. He relocated to Thailand to join JJ-LAPP in 2007 and in 2011 moved to Indonesia where he established the company’s joint venture manufacturing facility. Mr Winzerling took on the Regional Managing Director role from January 1, 2015.  Email contact

Lim Siew Tin

Jebsen & Jessen Ingredients

Lim Siew Tin took over the reins of Jebsen & Jessen Ingredients on May 1, 2020 as Chief Operating Officer. First joining the company in 1997, Ms Lim has served in leadership roles throughout the family business, including leading Jebsen & Jessen Ingredients in the Philippines (2010-2012) and Indonesia (2012-2014) as General Manager. In 2014, she took on the roles of Key Principal Manager, Regional RBU Controller and Jebsen & Jessen Ingredients Board Secretary. Most recently, she also served as Managing Director of Jebsen & Jessen Ingredients in Singapore and Malaysia. Email contact

Jebsen & Jessen - Jakob Helms

Jakob Helms


Jakob Helms has served as Managing Director of JJ-Lurgi since 2012. Mr Helms joined the Group’s Engineering division in 2000, transferring to JJ-Lurgi as General Manager – Operations in 2002. In his current role he overseas the Malaysia based engineering practise of 110 staff. With a branch office in China, the company delivers projects for customers across the region and beyond. Email contact

Jebsen & Jesses - Chui Tau Siong

Chui Tau Siong

Jebsen & Jessen Packaging

Chui Tau Siong is the Regional Managing Director of Jebsen & Jessen Packaging and has more than 30 years of experience in designing and manufacturing packaging solutions. He is in charge of managing operations across South East Asia, overseeing more than 600 people. Mr Chui has successfully completed a number of mergers and acquisitions for the Regional Business Unit such as Broadway in 2002, Labplas in 2011 and PT Indo Tirta Abadi in 2020. ► Email contact


Per Magnusson

Jebsen & Jessen Technology

Per Magnusson is responsible for the operations of this 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

Internal Management

Our Group’s Central Services Unit support the regional framework that enables our businesses to thrive. Providing functional, strategic and infrastructure support they enable our Regional Business Units to focus their attention on serving customers.
Jebsen & Jessen - Viktor Leendertz

Viktor Leendertz

Chief Financial Officer

Viktor Leendertz is the Chief Financial Officer of Jebsen & Jessen Group.Mr Leendertz takes on overall responsibilities for the Group’s financial, IT and risk infrastructure, including accounting, treasury, IT, corporate and legal affairs, internal audit and the country Business Services Units.

Prior to joining the Group, Mr Leendertz was Group Chief Financial Officer at DyStar, a Singapore headquartered dye and chemical group.


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.


Marc von Grabowski

Chief Strategy Officer

Marc von Grabowski is the Chief Strategy Officer of Jebsen & Jessen Group responsible to spearhead the development of strategic plans for the Group and each Regional Business Units.

Mr Grabowski started his career with our material handling joint-venture MHE-Demag in the Philippines in 2009 and, by 2015, had risen through the ranks to become President. Mr Grabowski earned a Master’s degree from Columbia Business School.