Canadian Smarties are wheat contaminated. I gave them to my wheat allergic son, instead of my peanut allergic son. Dumbest mistake ever. Vermont Nut Free Skippers are on shared lines with barley malt.
Jelly Belly makes candy corn. Jelly Belly is not entirely in my comfort zone for tree nuts but DS2 doesn't seem to have any issues (he is negative for tree nuts, only positive for peanuts). They do process Jordan Almonds and some of their candies are in shared polishers.