Initiating Global Expansion!
Discover ONSEN SUI 99 ®
Our Japanese Gem!
Soon Available Worldwide!
Seeking Overseas Partners!
ONSENSUI 99®
ONSENSUI 99® is a high-quality, naturally alkaline water sourced from deep underground at 750 meters. With a pH level of 9.5-9.9, this onsen water is exceptionally soft (hardness of 1.7mg/L) yet highly alkaline. Known for its refreshing taste and health benefits, ONSENSUI 99® offers purity and a naturally balanced mineral composition, making it ideal for both drinking and wellness. Discover why so many prefer ONSENSUI 99® as their choice of onsen water.
Our Water
ONSENSUI 99® is 100% natural alkaline onsen water, sourced from 750 meters underground in Tarumizu City, Japan. This premium hot spring water emerges at a natural temperature of 47°C (116.6°F) and boasts a unique blend of minerals, offering a pure and refreshing experience. With its high alkalinity and natural mineral balance, ONSENSUI 99® is an ideal choice for those seeking high-quality, mineral-rich onsen water.
International Quality of ONSENSUI 99®
ONSENSUI 99® has achieved international acclaim, receiving Quality Awards from the prestigious MONDE SELECTION, the International Quality Institute, every year from 2009 to 2012. In 2011, ONSENSUI 99® was further distinguished with the International High Quality Trophy from MONDE SELECTION, recognizing its consistent excellence as premium onsen water. These awards highlight the international quality and purity of onsensui99, making it a trusted choice worldwide.
Our SOC SDGs Action
-Sustainable Development Goals-
At SOC, responsibility is fundamental to our water stewardship and sustainability efforts. In collaboration with Tarumizu City and academic partners, we work to preserve and protect natural resources and water for future generations. Our commitment ensures that water and nature remain safe and resilient, supporting both the community and the environment.
Our Commitment for the Quality
At ONSENSUI 99®, our commitment is to deliver the world’s safest and highest-quality mineral-rich onsen water. We maintain rigorous standards through daily internal taste tests and independent quality inspections conducted every day by the Kagoshima Pharmaceutical Association, ensuring that every bottle of onsensui99 meets our strict purity and safety criteria.
Our Products Specification
Our Onsensui 99® is 100% natural, drinkable hot spring water with a refreshingly mild taste that satisfies and hydrates. This premium onsen water stands out for its extraordinary softness, with a hardness of just 1.7 mg/L, and its exceptionally high alkalinity, boasting a pH level between 9.5 and 9.9. Onsensui 99® is not only one of the softest and most alkaline waters available but is also cherished worldwide for its purity and health benefits.
Our Primitive Water
After an extensive global search for the finest natural mineral waters, Mr. Kusama, founder of Onsensui 99®, discovered what scientists call ‘primitive water’ in Tarumizu City, Kagoshima, Japan. This exceptional onsen water, sourced from deep within the earth, is revered for its purity, high alkalinity, and unique mineral composition, making Onsensui 99® a premier choice for those seeking quality and natural health benefits.
ONSENSUI 99® from Tarumizu Onsen, Kagoshima, Japan.
The name “ONSENSUI” combines the Japanese words “ONSEN” (hot spring) and “SUI” (water), symbolizing pure, drinkable hot spring water. ONSENSUI 99® from Tarumizu City, Kagoshima, Japan, is celebrated for its naturally high alkalinity and soft composition, a rare and unique quality among natural waters worldwide. This premium onsen water, sourced from the pristine environment of Tarumizu, offers an exceptional mineral profile, reflecting the distinct geological richness of the region.
Experiment with ONSENSUI 99®
ONSENSUI 99® is a miraculous water, a natural gift from Tarumizu City, Kagoshima. With an exceptionally low hardness of 1.7 and a high pH level of 9.9, ONSENSUI 99® offers unique benefits, including antioxidant properties, emulsification capabilities, and deep penetration. This rare combination makes it one of the most distinctive onsen waters worldwide.
Products by
ONSEN SUI 99®
Satuma Alkaline SHOTS with ONSENSUI 99®
Satuma Alkaline SHOTS is a premium Japanese alkaline shochu, known for its smooth, sweet, and fruity taste. This unique alkaline distilled liquor offers a refined drinking experience with a delicate balance of flavors, making it a standout among traditional Japanese spirits.
Company Information
About SOC
Our core principle, ‘Shine On the Corner,’ forms the foundation of SOC. The name ‘SOC’ reflects the initials of this guiding philosophy, symbolizing our commitment to illuminate and support our community and environment.
About Our Factory
All our factories are eco-friendly and sustainably operated, located in the pristine surroundings of Tarumizu City, Kagoshima, Japan. We prioritize harmony with nature in every aspect of our production.
Nearby City information
About Tarumizu City
The name ‘Tarumizu’ translates to ‘dropping water,’ a nod to its historical role as the sole source of drinking water in the area, where fresh water once trickled naturally between the rocks. This unique natural feature continues to define Tarumizu’s rich water heritage.
About Kagoshima
Kagoshima, Japan’s southernmost prefecture on Kyushu island, is renowned for its iconic Sakurajima, an active volcano that stands at the heart of the region. This dynamic landmark is a symbol of Kagoshima’s unique natural landscape.
