SGSBOTTLE is the international glass packaging brand of MAIDAO INDUSTRY — with production bases across Shandong and Jiangsu shipping stock and custom glass bottles to brands in 40+ countries since 2013.
Request compliance documents →Every bottle we quote is made on lines we run or control — so pricing, lead times and quality answers come from the factory floor, not a middleman.
MAIDAO has made glass in Tai'an, Shandong since 2004; in 2013 it launched SGSBOTTLE as the group's international brand. We run our own plant and quote every order directly — the people pricing your bottles sit inside the group that makes them, with an independent QC team answering to the buyer, not the line.
Production bases in Tai'an, Heze, Zaozhuang and Xuzhou combine our own lines with invested and long-term contracted capacity — equipped with IS, 6S and 8S forming machines, automatic testing machines and palletizers, under quality control that runs 24/7. Reorders and seasonal peaks go onto extra capacity instead of a waiting list.
10,000+ stock SKUs across 27 categories ship straight from inventory. Custom bottles go from a $500 acrylic prototype through our own mold processing center to production tooling, then to our own deep-processing plant in Heze for screen printing, decals, spraying and plating — one group, one purchase order.
Own and partner lines across Shandong and Jiangsu — Tai'an, Heze, Zaozhuang and Xuzhou — running IS, 6S and 8S forming machines. Which base makes your bottle follows from the glass you need, and it changes your minimum as well as your lead time.
Own factory · flint glass · flexible runs
Our own plant, built for flexible orders: one line runs up to 8 different products at the same time, so mixed SKUs, smaller quantities and reorders ship fast — with low tooling costs and a production schedule that bends to your launch date.
Super-flint specialist · spirits bottles
Home to China's largest spirits-bottle production lines: super-flint glass for vodka, gin, whiskey, brandy, rum, tequila, cognac and wine, formed on IS, 6S and 8S machines — with custom runs from around 12,000 pieces.
Flint glass · NNPB high volume
High-speed flint production on NNPB technology for clear glass and beverage bottles — high-volume orders with fully automatic inspection machines and automatic palletizers keeping quality consistent at line speed.
Flint & amber · NNPB high volume
High-volume flint and amber production on NNPB (narrow-neck press and blow) technology — lightweight bottles at high line speeds, checked by fully automatic inspection machines and stacked by automatic palletizers. Also runs MAIDAO's amber beverage-bottle programs.
Certifications get a factory through the door. What keeps defective glass off your pallet is the control chain behind them — and it is not identical at all four bases, so here it is base by base.
| Control point | What we do | Where |
|---|---|---|
| Forming | NNPB narrow-neck press and blow presses the parison with a plunger rather than blowing it, so wall thickness lands where the drawing says. Even distribution is what makes a lighter bottle safe instead of fragile. | Tai'an · Zaozhuang |
| Annealing | Containers travel the lehr on a temperature profile that relaxes internal stress rather than freezing it in. Residual strain is checked under polarised light — stressed glass shows its pattern in a polariscope and properly annealed glass does not. Strain results ship with the order on request. | All bases |
| Finish & sealing surface | Every bottle is checked — 100%, not a sample — for chips, dips and out-of-round on the sealing surface, the bore and the neck. Machine inspection at Tai'an and Zaozhuang; at Heze and Xuzhou it is 100% manual inspection, backed by a randomised audit sample pulled every two hours, twelve times a day. | All bases |
| Capacity | Gob weight is held at the feeder, then brimful capacity is verified by water-fill weight. Routine on every production run, not something you have to specify. Mould numbers in the base mean a drift traces to the cavity that caused it. | All bases |
| Surface protection | Hot-end coating goes on while the glass is still several hundred degrees, sealing micro-cracks; a cold-end coating after the lehr lubricates the surface so bottles slide past each other on the conveyor instead of abrading. Glass is strong until it is scratched, and the scratch that breaks a bottle on a truck was usually made in the plant. | Zaozhuang |
| Palletising | Automatic palletisers take the bottles from inspection to the pallet without manual handling. | Tai'an · Zaozhuang |
Test reports come with the order on request, and third-party inspection can be arranged before loading. For the buyer's-eye version — the six failure modes these controls exist to prevent, and the questions worth putting to any glass supplier — see what goes wrong with glass.
From a single Tai'an furnace in 2004 to four production bases, a decoration plant and offices abroad.
The group starts making glass in Tai'an, Shandong — serving China's liquor industry and international trading companies.
MAIDAO launches SGSBOTTLE as its export brand — one team handling global trade processes, documentation and requirements.
Cleaner melting cuts CO2, SO2 and NOx emissions across the plants.
Cooperation begins with a Malaysian listed company (name withheld under NDA).
In-house deep processing comes online: screen printing, decals, paint spraying and plating under the group's own roof.
A well-known Mexican brand commissions distinctive custom bottles (name withheld under NDA).
Technavio lists the group among key suppliers in China's glass packaging sector.
After visiting the factories, one of the UK's three largest beverage companies agrees a cooperation framework (name withheld under NDA).
Mordor Intelligence lists the group among key suppliers to China's glass packaging industry.
A regional office in Thailand brings support closer to Southeast Asian buyers.
Natural-gas melting, recycled cullet and lightweight NNPB forming — less carbon in every container you ship.
Coal-to-natural-gas conversion cuts CO2, SO2 and NOx at the melt.
High-quality recycled glass in every batch, with strict collecting and sorting standards.
Narrow-neck press and blow forms lighter bottles — less glass melted, less freight shipped.
Glass recycles forever with no loss of purity or performance.
Ask for the certificate pack with your quote — or commission independent testing at SGS, TÜV or Bureau Veritas and we hand you the report.
Named a major vendor among glass bottle manufacturers in China — in glass packaging industry reports by Technavio and Mordor Intelligence.
The forming lines, quality lab and decoration hall your order moves through before it ships.
Send a drawing, a photo or just a rough spec — itemized pricing and a container plan come back within one business day.
sales@sgsbottle.com · Mon–Sat 8:30–18:00 (GMT+8)