Registrations for nearly 1,000 beef, pork and poultry plants are about to expire, according to the United States Department of Agriculture (USDA) and Chinese customs data compliled by Reuters.
The USDA told the news agency that China had not responded to repeated renewal requests, potentially violating the Phase 1 agreement.
China has also hit U.S. pork and beef with tariffs in retaliation for broad tariffs United States President Donald Trump imposed on products from China.
After Canada put a 100 per cent tariff on Chinese electric vehicles, China put tariffs on Canadian pork and canola.
In the past China has also banned imports from specific companies and products, such as canola from Richardson trading company and pork from Conestoga Meats.
China was the third-largest market for U.S. meat in 2023, accounting for nine per cent of total imports. Losing access would be a significant setback, particularly for exporters of chicken feet and pork offal, which have limited domestic demand.