South Korea imposes late-declaration surcharge on gasoline, diesel and kerosene imports

The Korea Customs Service has designated gasoline, diesel and kerosene as items subject to a late-declaration surcharge under a crackdown on hoarding and speculative stockpiling of petroleum products. The move aims to prevent delays in reporting imports or long stays in bonded storage in response to rising oil prices.

Under the new notice, importers of these fuels must file their import declarations within 30 days of bringing the goods into a bonded area. If the declaration is late, a surcharge equal to up to 2% of the assessed value will be imposed. The 2% cap corresponds to a maximum of 5 million won under the applicable tariff law decree.

The measure will remain in effect until the prohibition on hoarding petroleum products is lifted. If market conditions change and additional items are added to the hoarding ban, the authorities plan to expand the late-declaration surcharge to those items as well.

The Customs Service described the policy as a preemptive step, noting that Korea’s domestic oil supply structure does not rely heavily on direct imports, but that hoarding could still harm consumers through price volatility and reduced immediate availability. Industry groups are urged to comply with the reporting obligations.

For non-Korean readers, a few quick background notes: the Korea Customs Service enforces tariffs and oversees import declarations and bonded warehouses (known as 보세구역), where goods can be stored under customs control before duties are paid. The designation of these fuels as late-declaration surcharge items adds a financial incentive to report imports promptly, reducing opportunities for speculative stockpiling.

The policy reflects ongoing efforts in Asia to manage price shocks and supply risks in energy markets. Because South Korea is a major consumer and importer of refined petroleum products in the region, how Seoul handles import timing and reporting can influence regional refinery runs, inventory decisions, and potentially the timing of exports and pricing signals that affect nearby markets, including the United States.