 On September 15, 2005, the Royal Thai Mint began minting two-baht coins to complete the binary system in Thailand's coinage.That is, each successive denomination is worth twice, or roughly twice, as much as the previous one.Thai coin denominations in general circulation are now 25 satang, 50 satang, 1 baht, 2 baht, 5 baht, and 10 baht.