China has released a list of U.S. meat plants from which they will not accept imported pork products. The list totals 15 plants, which includes eight delisted between Aug. 7 to 17, reports USDA Food Safety Inspection Service officials.

At issue is trace levels of ractopamine, for which China has a zero-tolerance rule. The residue amounts that China discovered are less than the U.S. Food and Drug Administration's approved tolerance level for the product.

So now, the following plants are barred from exporting meat and poultry to China:

  • Swift Pork Co., Worthington, Minn.
  • John Morrell & Co., Sioux Falls, S.D. (effective Aug. 15)
  • Cargill Meat Solutions, Beardstown, Ill.
  • Cargill Meat Solutions, Ottumwa, Iowa (effective Aug. 7)
  • Tyson Fresh Meats, Waterloo, Iowa (effective June 1)
  • Farmland Foods, Denison, Iowa, (effective Aug. 15)
  • Farmland Foods, Crete, Neb. (effective Aug. 15)
  • Farmland Foods, Monmouth, Ill. (effective Aug. 15)
  • Hatfield Quality Meats, Hatfield, Penn. (effective Aug. 15)
  • Peco Foods, Bay Springs, Miss. (effective July 13)
  • Tyson Foods, Nashville, Ark. (effective June 6)
  • Sanderson Farms, Hammond, La. (effective June 11)
  • Indiana Packers Corp., Delphi, Ind. (effective Aug. 15)
  • Smithfield Packing Co., Tar Heel, N.C. (effective Aug. 15)
  • Sanderson Farms, Moultrie, Ga. (effective June 1)

Two of the plants have been suspended since 2005.

Additional plants have received 45-day warnings, which means they can still export product but must go 45 days without an incident or they also will be suspended.