In addition to manufacturing freezers and defrosters, the PROTON group freezes with its own technology a wide variety of products from different producers and sectors throughout Japan (sushi, seafood, meat, vegetables, etc.) at its facilities in Okinawa.

These products are present in many outlets throughout Japan,

from gourmet quality spaces to grocery stores in department stores, through the typical "konbinis" (コ ン ビ ニ) or convenience stores open 24 hours a day, 7 days a week.

Among the most prominent clients are the following:

In addition, recently, PROTON has signed an agreement with the giant chain DON QUIJOTE HOLDING (known as DONKI) with planned sales for this year of 1.37 trillion yen.