Authorities claim VIP escort packages on sale in China are difficult to police as the transactions are made outside of Thailand.
Facebook page "Lui Chin", which exposed the VIP escort sales on Chinese e-commerce sites last month, said this week that such packages are still available.
Tourism and Sports Minister Phiphat Ratchakitprakarn said if such services continue to be offered, he will order a related organisation under the ministry to investigate and help prevent illegal tourist services.
However, he said it would be difficult for the ministry to stamp out illegal sales because they are promoted via foreign online channels.
Thapanee Kiatphaibool, TAT deputy governor for domestic marketing, said it might be impossible to eliminate all VIP escort packages sold online.
The government must instead strictly enforce the law against any illegal actions in Thailand, she said.
Thailand might ask Beijing for help, as happened with the crackdown on so-called zero-dollar tours in 2016.