The American units of China’s BYD, the world’s biggest electric vehicle manufacturer, have filed a lawsuit in the U.S. Court of International Trade arguing that executive orders underpinning U.S. President Donald Trump’s import tariffs are invalid, thus making the collection of the duties unlawful. BYD said it has paid and continues to pay “significant” duties on materials it imports to sustain its operations in the U.S., where it designs and manufactures electric buses and trucks. More than 1,000 corporate entities, including household names such as Costco Wholesale and Goodyear Tire & Rubber, are pushing to be refunded for their share of the billions of dollars in tariffs that the U.S. has collected so far.