China blacklists 6 US firms, curbs drone exports after tariffs

China retaliated against fresh US tariffs by blacklisting six American companies, including Applied DNA Sciences and Stratum Reservoir, and tightening export controls on drones and their components to the US. The Chinese Commerce Ministry said the US actions 'seriously harm China's legitimate rights and interests' and that countermeasures were necessary. The move follows Washington's new tariffs on China and over 50 other countries, part of President Donald Trump's broader trade campaign. China also suspended factory inspections, blacklisted US compliance firms, and launched national security investigations into office copiers and printers.