A variety of exclusive Japanese Kit Kat flavors on display in a store in Osaka, Japan. There have been more than 300 limited-edition seasonal and regional flavors of Kit Kat chocolate bars produced in Japan since 2000, many exclusive to the country.[1][2][3] Nestlé, which operates the Kit Kat brand in Japan, reports that the brand overtook Meiji Chocolate as the top-selling confectionery in Japan