Over 600 US companies and trade associations have signed a letter urging President Donald Trump to end the tariffs on Chinese goods.

The letter states: “additional tariffs will have a significant, negative and long-term impact on American businesses, farmers, families and the U.S.”

In the short term markets are expected to remain choppy until there is at least some partial resolution on the trade dispute, Chris Ford, manager of the Smith & Williamson Artificial Intelligence fund, warned.

While it is expected the two presidents will meet at the G20 Summit in Osaka at the end of June, “Trump is clearly...