Thailand has strict liquor laws that must be followed by the The Alcoholic Beverage Control Act of 2008.
Because the hotel is only licensed-authorized to sell and serve alcoholic beverages that were purchased by Millennium Hilton Bangkok. Bringing in own Alcoholic beverage needs written permission from Catering/Event Manager.
The legal drinking age in Thailand is 18.
Your Catering/Event Manager may provide a copy of some of the applicable Thailand liquor laws upon request.