The Asian market on Main street called Lin Hing. It is a block south of One World between Thanh Linh and Sizzling India restaurants across from Campustown. If it is of a Pacific Rim food item, they have it.
However, I thought I saw them at Schnucks in their ethnic section. Thought they were on the bottom shelf. Wasn\’t labeled Panko, but Japanese bread crumbs, which, in essence, is panko.