Dadacha-mame are a variation of soy beans only grown in Tsuruoka City, Yamagata Prefecture (see map on package). These are corn chips and not potato chips.
Meiji and Morinaga dominate the cocoa mix market in Japan. Nestle is challenging with a white chocolate version. It does not work with hot water though (as some of the other brands do). This only tastes good with milk.