The U.S. will impose ⁠a 25% tariff on most imports from Brazil starting July 22, the U.S. Trade Representative's office said on Wednesday, the first action under the Trump administration's new tariff strategy that could eventually ​affect dozens of countries.

The new program, launched after the U.S. Supreme ​Court tore ⁠down the centerpiece of Trump's tariff system earlier this year, is based on investigations into unfair trade practices under Section 301 of the U.S. Trade Act.

Close to 80 trade investigations have been opened by the USTR office and a new wave of tariffs could be imposed on dozens of countries, including China, the EU, India, Japan, South Korea and Mexico.

Wednesday's announcement follows a proposal by the Trump administration in June to impose a punitive tariff of 25% on many imports from Brazil after deciding its practices were unfair on a range of issues from digital trade to illegal deforestation.

"Extensive negotiations with Brazil over the past year have not resolved these issues, but we remain open to continuing negotiations with Brazil to bring about long-needed ⁠changes ⁠to the problems identified in this investigation," U.S. Trade Representative Jamieson Greer said in a statement.