I guess that, with the source narrowed down to the plant, this is the next question but
One theory is that the cinnamon may have been contaminated for economic reasons, agency officials said. That could mean an ingredient is added or subtracted from a food to to boost its value. For example, compounds like red brick, red lead salt, lead oxide and lead chromate, which mirror cinnamon’s red color, have been added to increase the value of the spice, research shows.
and then
FDA officials said they “cannot take direct action” with Negasmart and are relying on officials in Ecuador for the investigation into the company’s actions. Negasmart does not ship product directly to the U.S. and of Negasmart’s customers, only Austrofoods shipped foods to the U.S., the agency said.