Coupang interim CEO Harold Rogers’ congressional deposition is prompting concerns that Washington could use his testimony as grounds for a trade investigation into Seoul by claiming “unfair” treatment of the U.S.-based firm, potentially setting the stage for higher tariffs on Korean products. Rogers appeared for a closed-door deposition before the U.S. House Judiciary Committee on Monday (local time), and testified about his treatment during inquiries by the Korean government into the firm’s massive data breach scandal. The testimony came at a sensitive juncture in the two countries’ trade relations, as the Donald Trump administration explores alternative tariff tools following the recent U.S. Supreme Court ruling that struck down its so-called “reciprocal” tariff measures as unlawful. One of the tools is an investigation under Section 301 of the Trade Act, which enables the Trump administration to impose tariffs or other trade sanctions once it finds its trading partners’ practices unreasonable or discriminatory against U.S. commerce. Details of Rogers’ seven-hour test