The government on Wednesday announced plans to strengthen monitoring to prevent importers from exploiting the country's tariff-rate quota system, including imposing additional duties on violators. The Ministry of Economy and Finance said it has proposed revisions to the enforcement ordinance of the Customs Act and and related regulations to establish a legal basis for designating certain items for stricter oversight. The tariff-rate quota system allows a certain volume of imports to be subject to lower tariff rates within a specified limit. Under the system, tariffs on selected items, mostly essential goods, can be reduced by as much as 40 percentage points. Authorities have found that some importers abused the system. In some cases, companies imported goods at reduced tariff rates but stored them in warehouses or delayed customs declarations, later selling them at higher prices. Under the proposed revision, conditions for applying tariff-rate quotas will be tightened, including setting deadlines for the release of goods into the market. If companies violate the rules, tariff reductions w