US Court Upholds Trump De Minimis Abolition; Korean Manufacturers Eye Tariff Pass-Through

The Quick Take

• A US federal trade court ruled that Trump administration's abolition of de minimis exemptions on sub-$800 imports is legal
• The ruling ends duty-free treatment for low-value parcels, raising costs for platforms like Shein, Temu, and Korean exporters
• Korean firm Kukil Paper reported H1 premium wallpaper revenue surpassing 80% of full-year 2025 sales

The United States International Trade Court ruled that President Trump's executive action eliminating the de minimis exemption for imports under $800 is legally valid, confirming a significant shift in US trade policy. The exemption, which had allowed low-value packages from China, South Korea, and other countries to enter duty-free, was a cornerstone of cross-border e-commerce business models for platforms including Shein, Temu, and smaller Korean direct-to-consumer exporters. The ruling was reported by CNBC and confirms that the tariff changes are enforceable and not subject to further legal challenge on constitutional grounds.

The removal of de minimis treatment raises effective landed costs for Korean direct-to-consumer goods entering the United States by an estimated 10–25% depending on product category and declared tariff rate. Korean fashion, beauty, and consumer electronics exporters that have relied on sub-$800 shipment packaging strategies will need to recalibrate their US pricing models or absorb margin compression. Beneficiaries include US domestic manufacturers and traditional importers who have been at a competitive disadvantage relative to de minimis-exempt competitors. Amazon and US retail platforms that facilitate marketplace cross-border sales will see a reduction in competing low-cost inventory from de minimis-eligible sellers.

Key forward signals include how Chinese platforms — Shein and Temu specifically — respond to the ruling: they can absorb costs, raise prices, establish US warehouses, or shift sourcing to tariff-exempted countries. Korean exporters should monitor whether the ruling creates a precedent for stricter enforcement of other tariff exemptions. Separately, Kukil Paper's strong wallpaper revenue performance reflects domestic Korean demand for premium interior finishing products — H1 sales already at 80% of 2025 full-year marks, suggesting the company may exceed annual revenue targets with strong H2 execution.

Synthesized from 3 sources.