YES, Japan's own darling of toymaker is Bandai! Bandai has factories in China which workers assemble parts of tamas. Therefore you see the words "Made in China" on the backside of tamas.
US is 2nd country which bought some of Bandai's share to become Bandai US licensee. So, Japan has the final right to decide on how the design of tamas should be like. US will finalize the design amendments (they believe US users are different from Japanese users in terms of lifestyle) before releasing these.
" Bandai America Inc. Corporate Fact Sheet
About Bandai America Incorporated:
A leader in introducing Japanese toy trends to the United States, Bandai America is a subsidiary of NAMCO BANDAI Holdings (USA) Inc., a newly formed joint entity that resulted from the integration of Namco Ltd. and Bandai Co. Ltd. of Japan. Global interests now encompass five strategic business units: toys and hobby (toys, models, apparel and sundries), amusement facilities, game content (home and arcade console gaming), mobile content, and visual and music content (including home entertainment). Bandai America is the manufacturer and master toy licensee of some of the most popular brands in children's toys and entertainment today."
To now of this date, there're few countries including Thailand and France. So that's how Tamagotchi Connexion was born.