The United States today launched into a key week for trade policy, with Washington due to slap fresh tariffs on Chinese goods and hold hearings to impose even more duties.
US and Chinese officials will simultaneously hold talks in an effort to defuse the dispute.
In addition, US negotiators will continue talks with Mexico aimed at rewriting the nearly 25-year-old North American Free Trade Agreement, which officials are hopeful they can conclude by year end.
President Donald Trump's aggressive actions against China and other trading partners are increasingly worrying businesses and farmers hurt by the tariffs and retaliation.
Dozens of industry representatives will voice those concerns in the first of six days of public hearings on the impact of the next planned round of tariffs, in which the Trump administration is poised to slap 25 per cent duties on USD 200 billion more in Chinese goods.
Interests as diverse as the American Bridal Prom Industry Association, the Juice Products Association, the American Petroleum Institute and the Vapor Technology Association have signed up to urge the US Trade Representative's office to reconsider the tariffs, which could take effect as soon as September.
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The tariff proposal "dramatically expands the harm to American consumers, workers, businesses, and the economy," the US Chamber of Commerce said in a statement.
"Help me keep my company alive," Ross Bishop of BrightLine Bags, which produces roll-aboard suitcases, pleaded at the start of the week's hearings in Washington.
He said his company would face an "unjustifiable" tax of nearly 43 per cent.
Others at the hearing lamented the multimillion dollar cost increase which will be a tax on consumers.
Stephen Lang, representing bridal and prom dress businesses, said that industry -- which is not yet targeted for tariffs -- relied on China because labour costs were prohibitive in the United States.
"Their labour is like oil for the rest of the world," and tariffs would decimate our industry, he said.
But earlier rounds of tariffs have shown that complaints to the Trump administration have largely fallen on deaf ears, as only a handful of product lines have been shielded from the new punitive duties.
Trump insists the tough tactics will pressure China to reform what US officials say are unfair practices, including theft of American technology.
Meanwhile, another USD 16 billion in Chinese goods will face new taxes starting Thursday at 12:01 am (0401 GMT), rounding out the first round of USD 50 billion in goods targeted. China has said it will react immediately with tit-for-tat tariffs on US goods.
And still pending are Trump's proposed 25 per cent taxes on all auto imports to protect the US industry.
Business economists overwhelmingly worry trade wars will harm the US economy, according to a survey released Monday, which warned of "unfavourable consequential impacts."