Supplier was identified as San Francisco-based Wilbur-Ellis. CEO John Thacher said “his company sold the concentrate to five pet-food makers, but that most of it went to two firms.” USA Today says of those five, only Diamond Pet Foods is named. The other major manufacturer tested for melamine and it did not test positive. Diamond Pet Food says they do not use rice protein in their foods.
According to Thacher, the melamine contamination was reported to the FDA
a week ago on Sunday.
The rice protein concentrate was imported from China from Binzhou Futian Biology Technology. Their Web site lists three different types of feed grade rice protein.
Also of note, as you may have read in our comments, Natural Balance has updated their list of ingredients to include rice protein in recent days — raising questions about when the substance was actually added to the product. Howl911 has a side by side ingredient comparison.