PTT Public Company Limited or PTT was incorporated on October 1, 2001 by conversion. From the Petroleum Authority of Thailand By accepting the transfer of all businesses, rights, debts, liabilities, assets, and employees. Under the State Enterprise Capital Act of 1999, PTT has an initial registered capital of 20,000 million baht, divided into 2,000 million common shares with a value of 10 baht each. The first day of trading on the Stock Exchange of Thailand was on December 6, 2019. 2001 and the Ministry of Finance is a major shareholder.