The following is a statement from Kashrut.com:
“PLANTERS NUT PRODUCTS are acceptable only when bearing an OU symbol. Products bearing a K (which include most Planters Dry Roasted items and some Honey Roasted items) may contain gelatin, or may be produced on the same equipment as gelatin-containing products.
Note that Planters Honey Roasted Cashews in the 3 oz. bag and 8.25 oz. can bear an OU, but the 1.5 oz. and 2 oz. size bags bear a K because they are not produced on an OU approved production line. Every package should be carefully checked for the OU symbol.”