Introduce

We will create impression!



Kowa Sonia, established in 1960, is one of the most well-known Japanese manufacturers of mailboxes for apartments and detached houses.Our headoffice located in Gunma and branch is at Tokyo.

We are also a leading manufacturer of interphonepanels and clothing racks.



We are proud that our products are utilized by numerous residential houses and even famous office buildings, such as Roppongi Hills or Akihabara UDX in Tokyo.



"We constantly make an effort to create products with unique design, great usability, and high quality.

Additionally, with our unique, one-of-a-kind technology, we can create your custom order to your specifications.

All of our products are completely made in Japan, and we can strongly recommend our products with confidence."