"We are no longer serving product from the primary facility there that has the challenges and the issues," Thompson said on a conference call following its quarterly report on Tuesday.

McDonald's and many other food companies rely on third parties to perform audits to check whether facilities are complying with food safety rules and other regulations. It is not uncommon for suppliers at the centre of food safety scandals to have received high marks on their audits.

McDonald's did not immediately comment on the timing of the Husi Food audit or the name of the auditing firm that visited its now controversial plant on its behalf.

Husi Food is a unit of Illinois-based OSI Group.

"I know there's a couple other facilities that they had that have been cleared now by the Chinese government," Thompson said.

It was not immediately clear whether McDonald's had stopped sourcing products from those other facilities.

(Reporting by Lisa Baertlein in Los Angeles)

By Lisa Baertlein