A U.S. company, ChemNutra Inc., and two Chinese businesses were charged by a federal grand jury with manufacturing and importing tainted ingredients used in pet food that may have killed thousands of cats and dogs last year.
Top executives from the companies were also indicted. The U.S. accused them of importing 800 metric tons of wheat gluten poisoned with melamine, an unsafe food additive.
The shipments were mislabeled to avoid inspection in China, prosecutors said.
Last March, the U.S. Food and Drug Administration was alerted to the deaths of 14 cats and dogs that appeared to suffer from kidney failure after eating.
Ultimately, manufacturers recalled more than 150 brands of dog and cat food.
Consumer reports received by the FDA suggested about 1,950 cats and 2,200 dogs died after eating contaminated pet food, the Justice Department said.