The United States and Switzerland are set to unveil details of a trade pact on Friday, with both sides reaching an agreement to sharply lower tariffs recently imposed by US President Donald Trump, officials said.

The progress was announced a day after talks in Washington, as the Alpine nation’s economy minister Guy Parmelin visited in hopes of easing steep duties the Trump administration rolled out this year.

“We’ve essentially reached a deal with Switzerland. So we’ll post details of that today on the White House website,” US Trade Representative Jamieson Greer told CNBC in an interview.

The Swiss government separately announced that Switzerland and the United States have found an agreement where US tariffs will be slashed from their current 39 per cent level to 15 per cent.

Trump shocked Switzerland in August when he imposed the 39 per cent duty on imports of goods from the country, among the highest in his global tariff blitz.

But Greer told CNBC on Friday that the Swiss were expected to send a lot of their manufacturing to the United States, such as pharmaceuticals, gold smelting and railway equipment.