1. Honeywell Center of Excellence in Computer-Aided Design and SINOPEC/AspenTech Center of Excellence in Process Systems Engineering, Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
2. Aspen Technology, Inc., 1293 Eldridge Parkway, Houston, Texas 77077
3. Aspen Technology, Inc., Ten Canal Park, Cambridge, Massachusetts 02141