WEX is developing a new class of non-opioid analgesics. The Company’s proprietary platform is Tetrodotoxin (TTX), a highly selective sodium channel blocker. WEX’s lead product based on TTX is in Phase III clinical development for the treatment of cancer-related pain. WEX has completed five clinical trials with TTX, with more than 200 patients treated to date. WEX is a subsidiary of CK Life Sciences Int’l., (Holdings) Inc. (“CKLS”), listed on The Stock Exchange of Hong Kong Limited (stock code: 0775). CKLS is engaged in the business of research and development, manufacturing, commercialization, marketing and selling of environmental and human health products, and water businesses and investment in various financial and investment products.