Dr. Tang is a world-renowned geochemist who uses the fundamental principles of chemistry to explain subterranean geochemical processes during the hydrocarbon formation, evolution, and production stages, and to design and apply cost-effective oilfield chemicals for improving hydrocarbon recovery in an environmentally responsible manner. He has pioneered in applying molecular modeling and designing techniques to many fields of organic geochemistry, surface chemistry, reaction kinetics, and petroleum chemistry. Dr. Tang has served as the corporation consultant for a number of global energy production companies.