KYB compliance challenges for fintechs expanding into Southeast Asia

Been thinking a lot lately about the complexities fintechs face when looking to onboard corporate clients in Southeast Asian markets. Specifically, I'm curious about the varied interpretations and enforcement of Know Your Business (KYB) regulations across countries like Thailand, Vietnam, and Indonesia. It feels like what's standard practice for due diligence in Singapore or Hong Kong might not cut it, or conversely, might be overkill and slow down onboarding in other jurisdictions. Are there common pitfalls or specific red flags for AML that local regulators are hyper-focused on in these regions for business entities? Any insights on managing the compliance burden while still achieving scalability would be incredibly valuable.