【U.S. Secretary of Commerce: Expected to Issue 15 to 20 Trade Letters in the Next Two Days】U.S. Secretary of Commerce Wilbur Ross stated that many countries have proposed to open their markets. I expect to issue 15 to 20 trade letters in the next two days. The copper tariff will be implemented in late July or on August 1. Trump plans to impose a 50% tariff on copper with the aim of shifting copper production back to the domestic market.