Premium Natural Alkaline Water from Japan
For Global Distribution & Partnership
Naturally sourced from deep beneath the volcanic layers of Kagoshima, Japan, ONSENSUI99 is a premium alkaline water brand designed for global markets.
Born from Volcano
ONSENSUI99 is sourced from underground aquifers more than 750 meters deep in Tarumizu City, Kagoshima, at the foot of the Sakurajima volcano.
Filtered by Earth
As the water passes through volcanic rock layers, it is naturally filtered and refined, resulting in exceptional purity and a smooth taste.
Shaped by Time
Without artificial processing or chemical treatment, ONSENSUI99 retains its natural mineral balance shaped by time and nature.
Product Overview
| Product Name | Size | Packaging |
|---|---|---|
| ONSENSUI99 | 500 ml | 24 / 30 bottles per case |
| ONSENSUI99 | 2 L | 6 bottles per case |
| ONSENSUI99 | 1.9 L | 6 bottles per case |
| ONSENSUI99 | 11.5 L | Bag-in-Box (BIB) |
All products are produced and bottled in Japan under strict quality control.
Why ONSENSUI99
Naturally Alkaline
pH 9.5–9.9, ideal for daily hydration and a balanced lifestyle.
Ultra-Soft Water
Hardness 1.7 mg/L (CaCO₃) for a smooth, gentle mouthfeel.
Pure and Natural
No additives, no artificial processing, no chemical treatment.
Japanese Quality
Produced and bottled in Japan under strict quality control.
ONSENSUI99 is a premium Japanese natural alkaline water brand sourced from
Tarumizu hot spring in Kagoshima, Japan.
Naturally filtered through deep volcanic layers over thousands of years,
our water achieves a rare balance of purity, softness, and natural alkalinity.
With a pH level of 9.5–9.9 and ultra-soft hardness of 1.7,
ONSENSUI99 offers a smooth, clean taste suitable for premium daily hydration.
ONSENSUI99 is developed for long-term global brand partnerships.
We collaborate with distributors, hotels, wellness brands,
and premium partners worldwide who value quality and transparency.