Never Changing Faith - That is the foundation of Kairen's corporate culture.

●To make Kagoshima prefecture Japan's best at processing sweet potatoes.
●Use the whole sweet potato to create a source of energy.
●Contribute to Japanese women's beauty.

One of the products that represents Kagoshima prefecture is "Satsuma's potatoes", the "Satsumaimo (sweet potatoes)".
Kairen is actively working on the development of various sweet potato products, including processing sweet potatoes used for shochu.
As a skilled group of professionals that knows the raw nature of sweet potatoes, we implemented unique criteria at Kairen, that brings out the power of sweet potatoes in various forms. We don't just promote the delicacy of the vegetable, we also promote health and beauty.

What are our standards?

Sell good products at a reasonable price

Ichiju Nagai, father of Hideki Nagai, our Chairman, believed in "sell good products at a reasonable price" as his personal mantra. He firmly believed, "There are many similar products in the world but we recommend our products with confidence. The prices are appropriate for the products because we are making good quality products that others can't imitate." A product that no other can imitate means, "use the highest quality materials and deliver the best, delicious products".
For that reason, we use the best materials carefully selected for all products, including processing for shochu. Kairen will continue pursuing quality so that customers can eat safe and delicious food.

Satsumasendai City where the main office is located and Akune City where the factory is.

Satsumasendai City, where our main office is located, is in the northwest of Kagoshima prefecture. It is the largest area in the prefecture at the center of the Hokusaku District. Sendai Station area is considered the entryway to the land. Due to the opening of the Kyushu shinkansen, the area is enlivened and functions more like an urban city, right at the center of the northwestern part of the prefecture. A high-rise condominium was built and the opening of a nationwide store chain added to the "dynamics" of the area. Centralized in Satsuma Kofu, part of ancient south Kyushu, many people are coming and going and have been accepting different customs. Satobuke and other samurai residences are in Irikifumoto's traditional architectures preservation district. There are intangible folklore cultural assets such as the “Bunya-bushi ningyo joruri puppet theater” and “Toshidon”. It is a city where a "static" side of Satsumasendai's culture and spirit coexists with an enlivened developed area.
In addition, Kagoshima prefecture's Akune City, where our factory is located, can view the East China Sea and the Yatsushiro Sea to the west, and is in contact with Satsumasendai City on the boundary of the Shibi and Yahazu mountains.
This area has the best soil for sweet potatoes in a temperate area where the average annual temperature is 17.2°C, sunshine time of 1,955 hours, and has an average rainfall of 2,057mm. Sweet potatoes grown and raised in this soil are of great quality and have earned high praise from all over the country. Among this wonderfully natural and rich land stands Kairen's "Akune Factory".

●Main Office	【Distribution/Sales】 Sweet potato processed goods, agricultural products retailing
●Akune Factory	【100-Days Aged Kairen Beniharuka Brand】【Sweet potato processing for shochu】 【Freezing and refrigeration warehouse business】 Baked, dried sweet potatoes, Kairen Haruka sticks, dried sweet potato flakes, etc.
●Aspa-Land/Agri-Center	【Farming Corporation】 Production of agricultural products (asparagus and sweet potatoes) 【Compost Area】
●Ouchigohan Ichiju	Direct ownership of the restaurant