Bangkok: PTT and Bangchak are set to increase the prices of diesel, gasoline, and gasohol, effective from 5:00 AM on September 9, 2026.
According to Thai News Agency, PTT Station will adjust the retail price of all types of gasoline and gasohol, marking an increment of 0.80 baht per liter, while Premium GSH95 and Premium GSH99 remain unchanged. Diesel prices will see an increase of 0.70 baht per liter, with Premium Diesel prices unaffected. The revised retail prices will be ULG at 48.08 baht, GSH95 at 39.09 baht, E20 at 34.09 baht, E85 at 30.03 baht, GSH91 at 38.72 baht, Premium GSH95 at 47.79 baht, Premium GSH99 at 49.79 baht, HSD B7 at 39.84 baht, HSD B20 at 34.84 baht, and Premium Diesel at 50.05 baht. These prices are exclusive of the Bangkok Metropolitan Administration maintenance tax.
Bangchak has also announced similar adjustments, with diesel prices increasing by 0.70 baht per liter and gasoline prices by 0.80 baht per liter, maintaining current rates for premium fuels. The updated Bangchak retail prices are set as follows: GSH 95 S EVO at 39.09 baht, GSH 91 S EVO at 38.72 baht, GSH E20 S EVO at 34.09 baht, GSH E85 S EVO at 30.03 baht, Hi Premium 98 + Plus at 49.29 baht, Diesel B20 at 34.84 baht, Hi Diesel S at 39.84 baht, and Hi Premium Diesel + Plus at 49.25 baht, excluding Bangkok local tax.