Scott MacDonald is watching warily as the Trump administration investigates Vietnam's trade practices, something that could lead to tariffs against the Southeast Asian country.
The Minnesota-based manufacturer's representative said tariffs against the Chinese have hurt his business as they pinch his customers.
After President Donald Trump applied the protectionist tariffs on $360 billion worth of Chinese products in 2018, MacDonald predicted other companies would see similar scrutiny.
Companies that moved supply chains from China to Vietnam to avoid tariffs could once again be slapped with cost increases that could lead to higher consumer prices or reduced profits.
"I said if they can do this in China, what's to keep them from doing it every place else?" said MacDonald, who represents foreign companies selling to U.S. retailers.
The Chinese tariffs have hit several industries from farming to high-tech computer parts.
Higher tariffs against Canada and European countries also have hit Minnesota companies, from builders who pay higher prices for products from lumber to wine sellers.
Supporters of the tariffs said the U.S. needs to push for fairness in trade, against alleged misuse of intellectual property in China, for example, or possible misdeeds by European Union officials in deals with Airbus.