Thailand's competition regulator (TCCT) is creating targeted guidelines for ride-hailing and food delivery platforms following market consolidation into duopolies: Grab and Bolt control ride-hailing, while GrabFood and Line Man Wongnai dominate food delivery with 80-90% combined share. The TCCT warns that platform concentration risks exclusionary behaviour, unfair pricing, self-preferencing algorithms, and barriers to entry through network effects and data advantages. New draft regulations addressing service standards and algorithmic practices are under review, with implications for SME merchants and drivers reliant on platform access.