Hong Kong-listed Chinese export stocks jumped Monday after the U.S. Supreme Court struck down President Trump's trade tariffs, raising hopes for reduced trade barriers. Lenovo Group rose 1.5%, while BYD Co and Techtronic Industries gained between 3.5% and 4%, as investors bet on improved export conditions.

Electronic component makers and apparel exporters led the rally, with Shenzhou International Group Holdings surging 4.2% and Li Ning Co adding 3.1%. The broader index climbed nearly 3% on the news. The court ruled that Trump had exceeded his authority by declaring an economic emergency to impose tariffs.

Trump responded by declaring a 15% universal tariff under different legal grounds, but the ruling requires Congressional approval to maintain tariffs beyond 150 days. China's Commerce Ministry said it was evaluating the implications and called for cooperation over confrontation. The decision creates uncertainty about future trade policy while offering immediate relief to exporters.