In a lawsuit filed on 28/11 at the US Court of International Trade in Manhattan, retail chain Costco stated that President Donald Trump's use of the International Emergency Economic Powers Act (IEEPA) to impose import tariffs created uncertainty for businesses regarding the recovery of overpaid duties.

The supermarket chain also complained that US Customs and Border Protection (CBP) denied its request for an extension to calculate payable duties. This denial threatens its right to full refunds if the Supreme Court rules unfavorably against Trump.

A Costco supermarket in Gunma, Japan, in 2024. Photo: Reuters

During his presidency, Trump imposed a series of additional import tariffs on products and trade partners. Tariff rates ranged from 10% to 50%, depending on the goods' origin. Costco stated it implemented various measures to mitigate the impact of these tariffs, such as reducing suppliers, increasing local sourcing, and promoting its private label, Kirkland.

Costco is among dozens of US companies that have sued the government to protect their ability to receive tariff refunds. It stands as the largest entity in this group, reporting USD 275 billion in revenue for fiscal year 2025. According to court filings, other companies involved include Bumble Bee Foods, EssilorLuxottica – the maker of Ray-Ban eyewear, Kawasaki Motors, Revlon, and Yokohama Tire.

In early November, the US Supreme Court held its first hearing on the lawsuit concerning President Trump's import tariffs. During the proceedings, some justices expressed doubts about the legality of this policy. This has raised concerns that the US government might have to refund import tariffs if it receives an unfavorable ruling. Bloomberg reported that the total amount of refunds for businesses could exceed USD 100 billion.

The justices agreed to expedite the case but did not specify when a ruling would be issued.

Ha Thu (according to Reuters)