(Bloomberg) -- WuXi Biologics Cayman Inc. shares slumped for the second day as investors worried over a ramp-up in geopolitical tensions following a US draft bill targeting Chinese biotech companies.Most Read from BloombergTraders Line Up for ‘Once-in-a-Generation’ Emerging Markets BetBlackstone Is Building a $25 Billion Empire of Power-Hungry Data CentersTrump Cash Stockpile at Risk From $450 Million Dual VerdictsMusk Says First Human Patient Has Received Brain ImplantAmazon Drops iRobot Deal;