tongyang r&amp;d, the snack company of south korea, began selling a similar type of chocolate cake with marshmallow filling named 'orion choco pie' in 1974. a member of the company was inspired by a chocolate-coated cake in a restaurant in a hotel in the u.s. state of georgia on a business trip. after he got back to korea, he made many experiment to make that kind of chocolate cake. finally, he created the choco pie as it is known to koreans now. later, tongyang r&amp;d changed its name to orion confectionery because of the success of 'orion choco pie'. in addition, similar versions of choco pie were produced by lotte confectionary and crown confectionery.