Unfortunately, there is no deposit regulation in Japan for PET bottles and metal
cans. Although it has been discussed for a long while, it cannot reach a conclusion.
Beverage manufactures may worry about the market if they put the price of container
deposit on their products, and it is also a long way for legislation. Since nothing is sure
on this topic, there are some more different ideas come out. Some coffee shops (ex:
Starbucks) start the activity “My Cup”, consumers purchase drinks with their own cups
can have 20 JPY discount.