BYD Company Limited (BYD Auto Thailand)
BEV manufacturer with a Rayong assembly plant
BYD inaugurated its Thailand plant in Rayong on 4 July 2024 — the company's first wholly-owned passenger car factory outside China and its first plant in Southeast Asia. The facility sits inside the WHA Rayong 36 industrial estate in Nikhom Phatthana District and is reported at a maximum annual production capacity of 150,000 units, covering both battery-electric and plug-in hybrid models. BYD is among the manufacturers named by BOI in its EV investment reporting.
Search-verified 17 August 2026: the plant opening date, location and 150,000-unit capacity were cross-matched across multiple independent trade-press reports. BYD's Thailand-specific domain (byd.co.th) timed out on direct fetch in this session, so the company's global official site is listed instead.