The U.S. is seeking a share of Korean semiconductor chipmakers’ “excess profits” from the AI boom, citing heavy American purchases of Korean chips, an industry source says. The source reports that USTR Deputy Rick Switzer told Korea’s Trade Minister Yeo Han-koo last month that U.S. companies deserve part of the profits earned by SK hynix and Samsung Electronics because they buy large volumes. Korea’s trade ministry said it is unaware of the claim. The issue follows rapid growth in Korea-to-U.S. chip exports.