Police first arrested Amla Wichainan, 44, in front of a karaoke bar in Soi Damrong in Thalad Yai when she was found to have four ya bah pills in her possession.
Later they arrested Nongluck Wongtubtim, also 44, at the Spacafe on Sakdidet Rd in Thalad Yai with 10.38 grams of ya ice and 40 ya bah pills.
The arrest came after police searched and arrested one man at the work camp of the Interdraft company in Wichit and he gave them his suppliers names.
Both women were taken to Phuket City Police Station where Amla was charged with possession of a Category 1 drug and Nongluck charged with possession of Category 1 drugs with intent to sell.