The DOEB also plans to raise the excise tax on petrol and premium diesel, which is compatible with super cars, to the highest ceiling at 10 baht per litre in order to encourage motorists to switch to eco-cars.
Mr Witoon said the department is seeking the Energy Policy Administration Committee's approval of the new tax rate of 6.3 baht per litre for petrol and 5.65 baht for diesel. This will help boost state revenue by a further 1.2 billion baht per month.