1. Research
and Development Center, PQ Corporation, 280 Cedar Grove Road, Conshohocken, Pennsylvania 19428, United States
2. Research
and Development Center, Zeolyst International, 280 Cedar Grove Road, Conshohocken, Pennsylvania 19428, United States
3. BIOVIA, Dassault
Systèmes, 5005 Wateridge Vista
Dr., San Diego, California 92121, United States