They are permitted to stay up to 30 days under the “Visa Exemption Rule” if entering via international airport and through a land border checkpoint from a neighboring country. Confirmed travel itinerary and proof of funds must be on hand.
Currently, Siam Legal visa assistance services are not available for citizens and residents of Hong Kong. Below however is a helpful overview of Thailand visas that could be of great use to them
Note: For those Citizens of Hong Kong residing and staying in the UK, USA, Australia and EU countries, please contact our 24/7 customer support or email us for available visa options.