last year, husi supplied don muang's japan with 20% of the meat used in chicken nuggets, that's about 4,300 tons. executives at the fast food giant say they've managed to secure a supply of chicken from other companies. they say nuggets should be back on the menu at all their restaurants this week. >> translator: i'm worried about this. my boy eats them a lot. >> translator: i just want them to make sure the food is safe. >> reporter: the chinese tv report uncovered other alleged health violations. workers dropped food on the floor and instead of cleaning it off or discarding it, just toss it back on the production line. >> workers used meat that was more than seven months past its expiration date. authorities at the shanghai food and drug administration have launched an investigation. they say husi supplied products to nine local companies including mcdonald's kfc and 7-eleven. those companies have suspended sales of some of husi's products. chinese consumers have been hit by a series of scandals involving tainted food in recent years, in 2008, baby formula contaminated with a toxic