According to ChainCatcher and Jin Shi data, at 0:01 local time on Saturday (12:01 Beijing time), Trump's 10% tariff on all imported goods to the United States officially took effect, with reciprocal tariffs to take effect next Wednesday.

The 10% baseline tariff is now in effect at U.S. ports, airports, and customs warehouses, marking Trump's complete abandonment of the post-World War II tariff rate system agreed upon by various parties. Kelly Anne Shaw, Trump's first-term White House trade advisor, stated, "This is the largest trade action of our lifetime," and predicted that tariffs would change over time as countries seek negotiations to lower rates. "But this is a big deal. It represents a massive and significant change in how we trade with every country in the world."