<h1>Presidential tariff authority raised a temporary global import surcharge, altering trade deal dynamics and exemptions for critical goods.</h1> The executive invoked trade act authority to impose a temporary global import surcharge, increasing a recently announced ad valorem levy and reserving the right to issue further legally permissible tariffs within a 150 day period; the proclamation excludes specified critical minerals, energy products, select agricultural goods, pharmaceuticals, certain electronics, passenger vehicles and aerospace products, and the surcharge is applied in addition to existing Most Favoured Nation import duties, affecting ongoing bilateral trade negotiations.