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For overseas buyers, the hardest part of sourcing packaged drinking water is not finding a supplier. It is finding a source, a packaging format and a quality system that still make sense after thousands of kilometers of transport and months in a distributor's warehouse. Chun'an Qiandao Lake Renren Enterprise Co., Ltd. — the company behind the Xizi Sanqian brand, also known in export searches as Xizi 3000 Water — has spent 30 years solving that equation at one of China's most protected freshwater lakes.
Founded in 1996 and headquartered at No. 96–109, Zijing Road, Qiandaohu Town, Chun'an County, Hangzhou, Zhejiang, the company combines a protected deep-lake water source with low-sodium processing, single-use collapsible barrels and instant dispensing equipment. For importers, distributors and private-label partners, this is a vertically integrated platform rather than a single SKU.
A Source With a Measurable Advantage
Qiandao Lake covers 860,000 mu (about 57,000 hectares) of water surface and sits within 5.34 million mu (about 356,000 hectares) of forested mountains. Its 1,078 islands and 17.8 billion cubic meters of water — equivalent to 3,000 West Lakes — meet the national Class I standard for drinking water sources. Water temperature remains around 12°C year-round, pH is mildly alkaline, dissolved oxygen ranges from 7.5 to 9.68 mg/L, and the water contains potassium, sodium, calcium, magnesium and metasilicic acid.
The company draws deep, naturally flowing water rather than surface water. Natural high-pressure filtration through the lake's geology reduces exposure to microbial and heavy-metal contamination, and the stable temperature supports consistent water quality year-round. That consistency matters in export markets, where repeat purchase depends on taste and analytical consistency, not a one-off sample.
Low-Sodium Water Without Stripping the Minerals
The flagship low-sodium line starts with water from about 20 meters below the surface near Mishan Island, where sodium is approximately 10 mg/L. Using OSMO membrane separation, the finished water is controlled at around 3 mg/L sodium while beneficial minerals are retained. This is a deliberate position: sodium is essential, but many consumers — including people managing hypertension, heart disease, kidney disease, liver cirrhosis or endocrine conditions — are advised to moderate intake. Households preparing infant formula also look closely at sodium because infants' kidneys are not fully developed. Xizi Sanqian's low-sodium water is designed for these everyday choices, not as a medical product.
For buyers who want a differentiated functional water, the company also produces small-molecule-cluster drinking water using Professor Jin Riguang's patented technology, Chinese invention patent ZL02130825X, which received the 2005 Eureka World Invention Gold Award. The process uses an ultra-high-speed, high-shear turbine-screw refiner and a long-tube alternating strong magnetic-field energizer. The resulting 17O NMR spectral linewidth is kept at ≤60 Hz, with the water retaining mild alkalinity and antioxidant activity. These are technical claims supported by the supplier's materials, and they give distributors a clear story for premium and wellness channels.
The Collapsible Barrel Is a Packaging System
Most barreled water still depends on a returnable container: deposits, collection, washing, refilling and the risk of counterfeit or inadequately cleaned barrels. Xizi Sanqian's patented collapsible barrel changes the unit economics and the hygiene model. The 10 L container weighs only 100 g and uses about 10 g of PET per liter — more than 70% lighter than a conventional non-collapsible barrel. Because it is single-use and made from virgin PET, there is no room for non-compliant reused or dark-colored containers.
As water is drawn, the barrel collapses automatically. No air enters, so the water stays in a vacuum state until the last liter. Once empty, the barrel is already flat and unusable, which fundamentally blocks refilling and counterfeit water. For distributors, the flat profile saves warehouse space and reduces handling, loading, unloading and freight costs; fewer trucks mean lower fuel consumption and emissions. For end users, there are no deposits, no returns and no deposit refunds. A dedicated stand and dispensing plug connect the barrel to existing electric kettles, instant hot-water machines, tea-bar dispensers and pumps, so no new appliance is required.
Dispensing That Closes the Hygiene Loop
The companion Xizi Sanqian instant hot water dispenser is designed to protect the vacuum-packed water after the barrel is opened. It heats in three seconds on demand, avoiding repeated heating; the water circuit is fully enclosed and dispenses under vacuum to prevent secondary contamination. Users can choose from five temperatures and four volumes, draw high-flow ambient water for cooking, and rely on steam-water separation to prevent splashing. The spout does not drip after dispensing, the body rotates 180° for easier barrel changes, and a large color display is paired with both button and AI voice control. The dispenser carries patent ZL 2015 1 0720875.3.
Manufacturing Scale, Certification and Compliance
The company operates a modern production base with integrated water treatment and filling lines and a combined capacity of 53,000 bottles and containers per hour. ISO 9001 certification was obtained as early as 2000, followed by ISO 14001, ISO 22000, ISO 45001, HACCP and social responsibility management system certification. Products have maintained a 100% pass rate in supervisory sampling inspections for 30 consecutive years.
Compliance is a genuine differentiator in this category. Public-record checks through Credit China, the National Enterprise Credit Information Publicity System and commercial databases report no administrative penalties, no food-safety sampling failures, no environmental, tax or market-regulation fines, no abnormal-operation listings and no credit-related dishonesty records. The company discloses only three ordinary civil sales-contract disputes, all related to routine commercial payment arrears. It holds beverage production, food packaging and environmental impact assessment approvals for technical renovation, and according to its public-record summary, among drinking water enterprises in Chun'an it is the only manufacturer with no water-quality penalties and no regulatory fines.
The company is also a National High-Tech Enterprise, a Zhejiang Green Enterprise, holder of 38 Chinese patents including seven invention patents, and a principal drafting organization for T/ZJFIA 001-2019 Packaged Natural Drinking Water, the first group standard issued by the Zhejiang Food Industry Association. Its Xizi Sanqian trademark was recognized as a Zhejiang Famous Trademark in 2011.
What the Images Show
The aerial image shows the company's lakeside production campus inside a mature water-industry cluster, with the lake, floating vegetation beds and transport infrastructure immediately adjacent. This is not a remote spring bottled in a shed; it is an industrial site with direct access to the source and the surrounding supply chain. The second image is the company's national industrial product production license for food-contact plastic packaging containers and related products, valid through January 15, 2031. For buyers auditing packaging suppliers, that license is a concrete document to request and verify.
Application Scenarios
Office hydration water is a natural fit for the 10 L collapsible barrel and instant dispenser: no deposit logistics, no heavy 19 L returnable barrels, and hot water in three seconds for tea, coffee and meeting rooms. Baby-safe drinking water positions the low-sodium line for formula preparation, where parents look for controlled sodium and consistent mineral content. Tea and hospitality benefit from the mineral profile and the brand's 2019 recognition as a recommended water for tea brewing. Retail and e-commerce can use the flat-packed empty barrel as a sustainability story, while distributors and private-label partners can combine water, barrels and dispensers into a complete home and office system.
Industry Insight
The packaged water industry is moving in two directions at once: premiumization at the source and de-materialization at the package. Buyers increasingly ask not only where the water comes from, but what happens between the filling line and the cup. Returnable barrels carry a structural hygiene risk that is difficult to audit at the point of use; single-use vacuum barrels remove that risk by design. At the same time, freight and warehouse costs are forcing distributors to look at packaging weight and cube. A 100 g barrel that flattens to a fraction of its filled volume addresses both trends at once.
For importers, the practical question is whether a supplier can support the whole system — water, container, dispenser, documentation and after-sales compatibility. Xizi Sanqian's 30-year operating history, patent portfolio and compliance record provide a credible base for that conversation.
Partner With Xizi Sanqian
Chun'an Qiandao Lake Renren Enterprise Co., Ltd. welcomes overseas distributors, importers, hospitality groups, office-supply companies and private-label partners. To discuss product specifications, container and dispenser compatibility, documentation or sample arrangements, visit www.xizisanqian.com and send an inquiry through the contact channel. Please include your market, target channel and expected volume so the team can respond with relevant information.
