1. Xenon Pharmaceuticals Inc., 200-3650 Gilmore Way, Burnaby, British Columbia V5G 4W8, Canada
2. Genentech Inc., 1 DNA Way, South San Francisco, California 94080-4990, United States
3. ChemPartner, Building No. 5, 998 Halei Road, Zhangjiang Hi-Tech Park, Pudong New Area, Shanghai 201203, P. R. China