1. OmegaChem Inc., 480 Rue Perreault, St-Romuald (Qc) G6W 7V6, Canada
2. Manchester Organics Limited, The Heath Business and Technical Park, Runcorn, Cheshire WA7 4QX, U.K.
3. Process Safety Laboratory, Chemical Research and Development, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340
4. Crystallization Engineering Technologies, Chemical Development, Pfizer Canada, 1025 Boulevard Marcel Laurin, St-Laurent (Qc) H4R 1J6, Canada