With over 43 years of experience in textiles and fibre processing Marinus has extensive commercial knowledge of all facets of the cotton production pipeline from field to fabric- specialising in yarn manufacturing and quality. Amongst others he is a certified quality expert and is the current chair of ICAC CSITC. He is also an executive member of the Australian Cotton Ginners Association and the ITMF International Committee on Cotton Testing methods. He is also a member of the ITMF Spinners Committee and the Cotton Classing Association of Australia and is the Australian fibre quality technical expert. He has authored many articles and technical reports and has been invited to present at numerous domestic and international conferences. He has managed to secure a large and diverse number of projects, service agreements and commission cotton textile processing work. He has many awards including the prestigious Australian Cotton Researcher of the year award.