After checking with Office of the Cane and Sugar Board (OCSB), there are 2 regulations for importing sugar to Thailand that are 1) WTO agreement that tariff 65% in-quota for 13,760mt/year and 94% for out-quota and 2) Thai-Australia (TAFTA) that tariff 21.70% in-quota for 3,568.99mt in Year2015 and 84.60% out-quota.
We also checked Customs Officers that Sugar Import Tariffs to Thailand for AEC members is 0%, Korea 7.22% for white sugar and 0% for raw sugar, and Australia (TAFTA) 21.70% in-quota and 84.60% out-quota but not be applied for AEC and Korea so we need to apply per OSCB rule who authority to approval of sugar imported.
Thanks.