Former President and Chief Executive Officer of the International Fertilizer Development Center. Currently he advises several countries in Sub-Saharan Africa on their agricultural sector development. Over the course of his career, Roy has been highly influential in shaping policy decisions, speaking before Heads of State and Ministers of Agriculture. In 2014, he co-edited Sustainable Phosphorus Management: A Global Transdisciplinary Roadmap. In 2012, he was appointed to the Steering Committee of the Global Nutrient Management Project of the UN Environment Program. He received his M.S. and Ph.D degrees in Chemical Engineering from Georgia Institute of Technology, USA.