Two women were arrested following a raid at a massage parlour in Bang Khunthian district.
Dararat Thamwanich, 51, the owner, and receptionist Warin Promsopa, 37, were charged with trafficking minors and procuring sexual services.
The arrests followed complaints that the parlour recruited girls under 18 and advertised on a website. The suspects allegedly used the Line messaging app to offer sexual services to customers.
Undercover police posed as customers to arrange services before making the arrests. Two girls, aged 16 and 17, were rescued and taken to a welfare centre.
Police seized four mobile phones, two used condoms and a customer booking notebook. Both suspects denied the charges.
