Kajorn Chanthasri, 30, was arrested in possession of 390 pills and 1.4 grams of ya ice (crystal methamphetamine) in the Rassada area, after selling drugs to an undercover officer posing as a buyer.
Under questioning Kajorn revealed the name of his supplier, Jamreu Sawengwit.
Jamreu, 27, was arrested later the same day in possession of a further 1,936 ya bah pills.
Both were charged with possession of a banned drug with intent to sell, and are currently confined, awaiting their day in court.