With the legalization, and explosion of retail Forex trading in Thailand in 2017, the Bank of Thailand (BOT) introduced some fundamental restrictions. These restrictions limited investments to less than $USD 1 million per year and outlawed any speculation on the Thai baht ฿ (THB).
Even considering the Securities and Exchange Commission (SEC) supervises capital markets, it is the BOT that maintains licensing for commercial entities involved in trading. However, there is no local regulation of Forex brokers working with private individuals, and thus many International Forex brokers are active on the Thai market.