The sole currency of Thailand is the Thai baht, according to the Encyclopedia Britannica. 100 satangs make one baht. The Bank of Thailand issues all Thai currency.
The Bank of Thailand issues banknotes with denominations from 10 to 10,000 baht. The Encyclopedia Britannica states that values ranging from 25 satang to 10 baht come in coin form. The baht was part of a complex financial system in the former state of Siam before Chulalongkorn introduced decimalization to Thai currency around the beginning of the 20th century. The Thai baht was a major Asian currency until its value fell dramatically during the Asian currency crisis of the late 1990s.