Toyota was citing the Japan Thailand Economic Partnership Agreement (JTEPA). And from what I have been told by informed sources, Toyota had a very strong case, and Thailand has essentially reneged on the agreement, to give Toyota this tax break. This is a major deal breaker. Expect Toyota and some of the 7,000 other Japanese firms operating here to start looking for greener pastures, governments they can count on, who practice the rule of law, and more dependable partners. This is a disastrous result for Thailand, and will likely ensure it's backwards trajectory for decades to come.
And this disingenuous administration continues to claim they support alternative energy vehicles, when in reality their refusal to honor their promises has caused Toyota to stop all production of the Prius here.
Woe are the people of Thailand, with this level of lack of leadership, integrity, judiciary, and compliance.
Toyota Motors claimed that its imported spare parts were eligible, citing the Japan Thailand Economic Partnership Agreement (JTEPA). JTEPA is a free-trade agreement which the two countries signed in April 2007. One of its intended benefits was eventually to eliminate the tariffs on over 90% of their bilateral trade.
https://www.thaipbsworld.com/toyota-motors-thailand-ordered-to-pay-฿10bn-in-outstanding-import-taxes-and-fees/
The newspaper says Toyota insists all Prius parts are imported under the Japan-Thailand Economic Partnership Agreement, under which the parts at issue are subject to import duty of zero to 10% compared with zero to 80% for normal imports.
Toyota Thailand “reaffirms the company imports Prius parts using the correct declaration approved by the relevant government agencies,” the source says.
https://www.wardsauto.com/industry/toyota-thailand-suspends-prius-output-tax-tiff