Speaker Category -Global Catalysis and Chemical Engineering Congress Home /Speaker Category -Global Catalysis and Chemical Engineering Congress Growing List of Speakers.. Jay A. Berzofsky, USA Dave Martinez, USA Anum Arooj, Pakistan Swathi Gupta, USA Steven Almo, UK Ayaan Parikh, USA Andrew Lees, USA Zhaohua Zhou, China Chandrasekaran Trilokesh, India Ricardo da Silva, Argentina Weina Sun, China Robert van der Put, USA Amani M Shilla, Zambia Xingmin Sun, USA Thomas Breuer, GSK, USA Nitin Joshi, UK Soumya BENAYAD, Algeria Francesca Ceddia, USA Thomas Naser, Israel John Shon, Japan