UOB Kay Hian Securities (Thailand) Public Company Limited engages in securities business in Thailand. The company operates through three segments: Securities and Derivatives Business, Financial Advisory Business, and Investing Business. It offers securities brokerage, dealing, and underwriting; derivatives agent; securities lending and borrowing; and investment advisory services. The company was incorporated in 1998 and is headquartered in Bangkok, Thailand. UOB Kay Hian Securities (Thailand) Public Company Limited operates as a subsidiary of UOB-Kay Hian Holdings Limited.