while in principle afta is a preferential arrangement in practice its discriminatory elements are relatively minor since its rules of origin threshold is lower than most preferential agreements nevertheless the preferential tariff arrangements for asean and china have promoted a strong presence of fruit and vegetables from these countries in indonesia on january in response to pressure from farmers a specific tariff on rice and rice flour of idr kg usd tonne was introduced replacing a ad valorem rate this specific tariff was equivalent to an ad valorem rate of approximately using the average export price for broken rice from thailand for and an exchange rate of idr per usd