ONSENSUI99 Thailand｜Official Thailand Store

"Onsensui99"

is now available across Thailand.

Natural alkaline water, which is popular in Japan, is available in Thailand with the same quality. Nationwide delivery available.

New Life Support Program 2026

For those starting a new life in Thailand

One box of ONSENSUI99 500ml (30 bottles) will be given away each month for 3 months.

Period: May 20, 2026 - June 30, 2026
5 people will be selected.

Click here for details >>

Save 240.00 ฿

500ml (30 bottles) x 1 box

2,160.00 ฿ THB

2,400.00 ฿ THB

Save 240.00 ฿

500ml (30 bottles) x 1 box

2,160.00 ฿ THB

2,400.00 ฿ THB

Save 150.00 ฿

1 box of 2L (6 bottles)

1,350.00 ฿ THB

1,500.00 ฿ THB

Maintain your daily routine even while traveling. Onsensui 99 is now available across Thailand!

Get Onsensui99 delivered straight to your hotel! Perfect for refreshing after a long flight or during your travels. Just order online no more searching for shops.

Enjoy the same great taste and peace of mind, anywhere in Thailand.

Click here for details

The excellence of Japan’s premium mineral water,now yours to experience in Thailand

Onsensui 99 is a natural alkaline mineral water, bubbling from the foothills of Mount Sakurajima in Tarumizu, Kagoshima,the southernmost tip of Japan.

Over the centuries, layers of volcanic ash known as the "Shirasu Plateau" have acted as a natural filtration system. This process creates a water quality that is rare on a global scale: featuring a high alkalinity of pH 9.9 and an ultra-soft hardness level of just 1.7

A legendary water once favored by Japan’s high-ranking royalty

During the Edo period, the Shimazu Lords carried this water to Kyoto and Edo as a gift for the Shogun and nobility. For centuries, it has been cherished for its exceptional taste and gentle properties—a legacy of purity and well-being.

Bringing Japan’s finest taste and peace of mind to Thailand.

For over 20 years, Onsensui 99 has been a beloved and trusted choice in Japan. Its exceptionally smooth texture makes it easy to drink and safe for everyone from infants to the elderly. With its high alkalinity, it’s the perfect daily companion for your health and beauty, even here in Thailand.

Bring the original taste of Japan to your hotel. We deliver to residences and hotels across Thailand

Travel with peace of mind,our special service for tourists ensures your favorite Japanese alkaline water is always within reach during your trip

Change your water, change your life

Beyond its exceptional taste, Onsensui 99 is crafted to be gentle on your body, supporting your journey toward lasting beauty and wellness. Experience the harmony of Japan’s pure nature and expert craftsmanship,now available for you in Thailand.

PRODUCT

Product list

Save 240.00 ฿

500ml (30 bottles) x 1 box

2,160.00 ฿ THB

2,400.00 ฿ THB

Save 240.00 ฿

500ml (30 bottles) x 1 box

2,160.00 ฿ THB

2,400.00 ฿ THB

Save 192.00 ฿

500ml (24 bottles) x 1 box (for hotel delivery)

1,728.00 ฿ THB

1,920.00 ฿ THB

Save 150.00 ฿

1 box of 2L (6 bottles)

1,350.00 ฿ THB

1,500.00 ฿ THB

REVIEW

Customer voice

Tokyo / Mimi

Finally, a water I actually enjoy drinking! It’s incredibly smooth and has made my daily hydration so much easier. Plus, it takes my morning coffee to a whole new level. A must-try for everyone

Gunma / Cafe Latte

We order four 11.5L boxes every month, and we couldn't be happier. My daughter is obsessed with it, but for more than just the taste. She never leaves the house without filling her favorite tumbler with Onsensui 99. Recently, at her class, her teacher asked, 'What’s in your bottle?' and she proudly answered, 'My favorite water!' He praised her, saying, 'You have such a great sense of self-care!' She was so happy. Thank you, Onsensui 99, for being part of her daily confidence.

Tokyo / Nikomaru-sama

I’ve been a loyal customer for two years now. The water is so delicious and incredibly smooth that it has become an essential part of my daily life. Most importantly, since I started drinking Onsensui 99, my health checkup results have been excellent! Thank you for consistently delivering such high quality

Tokyo / Strawberry Daifuku

I’ve been a long-time subscriber of Onsensui 99, making it a key part of my beauty and health routine. Since I started drinking it, I’ve noticed a wonderful improvement in my skin. Plus, I feel more refreshed and less easily fatigued—a change that makes me so happy! When people ask me, 'What’s your secret to staying so vibrant?' I tell them it’s simply making Onsensui 99 my daily hydration. (laughs) I’m excited to continue this gentle journey for my mind and body.

Tokyo / Sorami

I've been on a subscription for a few months now, and the difference is amazing. When I use this water for tea or cooking, the flavor becomes so much smoother and more refined.it’s like my cooking has leveled up What surprised me even more was my kids. They used to avoid drinking water, but now they gulp it down and even ask for refills! (laughs) Onsensui 99 has truly become an essential in our home.

Kanagawa Prefecture / Shion-sama

Onsensui 99 is a rare find, there is nothing quite like its pure, mellow, and honest taste. Every morning starts with a glass of this water. It’s so crystal clear and delicious that I feel my entire body being purified from the inside out. Starting my day like this is pure bliss. Thank you for always delivering this precious water right to my door.

Osaka / Chi-chan's mother

Thank you for consistently providing such delicious water. After drinking Onsensui 99, I honestly find it hard to go back to any other brand! Whether it’s brewing coffee or cooking rice, the results are remarkably smooth and mellow. It has become an absolute essential in my kitchen. I look forward to continuing with you.

Notice

BLOGS

blog

alkaline water

Not just rice. The reason why miso soup made with Onsen-sui 99 is delicious.

The taste of miso soup is determined not only by the miso and dashi. In fact, water is also a crucial element. Let's explore the relationship between Japanese cuisine and Onsen-sui 99, an ultra-sof...

Fresh rice being served from rice cooker

alkaline-water

Why Japanese Rice Doesn't Cook Well in Thailand | Instead of the Rice, Why Not Reconsider the "Water"?

You may sometimes feel that the taste of Japanese rice cooked in Thailand is different from that in Japan. The reason might not be the rice itself, but the water. This article explains the relation...

Brewing Japanese green tea with soft water for a smooth and delicate flavor

alkaline-water

Why Japanese Tea Doesn't Taste Good in Thailand | It's Actually the Water, Not the Tea Leaves

The taste of Japanese tea isn't solely determined by the tea leaves. We'll explain the difference in water between Thailand and Japan, and how super-soft water affects the umami and aroma of Japane...

SOC Co., Ltd. delivers safe, high-quality products to our customers

99 secrets of Onsensui99

Ultra-soft natural spring water sourced from the hot springs of Tarumizu, Kagoshima. Experience a uniquely mellow, smooth, and gentle taste in every drop

See details

Company Profile

SOC Co., Ltd., the manufacturer and distributor of Onsensui 99, is dedicated to delivering safe and high-quality product

See details

Authorized distributor

Official Distributors Wanted. If you are interested in becoming a partner and retailing Onsensui 99, please contact us for more information

See details

2025 Establishment of International Business Bases

Established SOC Corporation (Thailand) Ltd. (Bangkok)

2020 Expansion of Production Capacity

Operation Commencement of Kagoshima Plant No. 2 (Production Capacity Expansion

1999 Brand Established

Official Launch as "Onsensui 99"

About delivery

Currently, the target area is Bangkok, Thailand.
Flat delivery fee of 200THB per box

About payment

We accept credit cards, QR code payments (PromptPay, etc.), and bank transfers.

Regarding cancellation and returns

If the product is damaged or leaking upon arrival, we accept returns and exchanges within 7 days of delivery

About Subsciption

Subscribers enjoy a 5–10% discount on every purchase, including Free Shipping and more