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Rows of empty glass bottles on the cold-end conveyor inside SGSBOTTLE's glass bottle factory

A Glass Bottle Factory, Not a Trading Company

SGSBOTTLE is the international glass packaging brand of MAIDAO INDUSTRY — with production sites across Shandong and Xuzhou shipping stock and custom glass bottles to brands in 40+ countries since 2013.

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2005Making glass in Shandong
14Production lines
40+Export countries

Rooted in Shandong. Shipped to 40+ Countries.

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.

IS forming machine shaping red-hot glass bottles on the production lineQuality control lab technicians inspecting and measuring glass bottles

Own plant, direct answers

MAIDAO has made glass in Shandong since 2005; 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.

Capacity that scales with your orders

Production sites in Shandong 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.

From mold shop to decorated pallet

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 Shandong for screen printing, decals, spraying and plating — one group, one purchase order.

Two Production Sites, One Supply Chain

Own and contracted lines in Shandong and at Xuzhou in Jiangsu, running IS, 6S and 8S forming machines. Which site makes your bottle follows from the glass you need, and it changes your minimum as well as your lead time.

SHANDONG

Shandong Works

Flint & super flint · NNPB high volume

NNPB production line forming clear glass bottles in Shandong

The 7 lines in Shandong melt both grades: flint for food, beverage, cosmetic and amber ware, and super flint for spirits, perfume and diffusers. NNPB (narrow-neck press and blow) keeps bottles light at high line speeds, hot-end and cold-end coating protects the surface before shipping, and automatic palletizers stack the finished pallets. Automatic inspection machines check the pieces and inspectors check behind them. Custom runs in super flint start at around 12,000 pieces.

7Production lines
Flint and super flintGlass
Machine + manualInspection
XUZHOU · JIANGSU

Xuzhou Factory

Own factory · flint glass · flexible runs

IS forming line with red-hot glass bottles at SGSBOTTLE's Xuzhou factory

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. Inspectors check 100 percent of the pieces by hand, with a random check every two hours.

7Production lines
FlintGlass
100% manualInspection
300+Workers

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What Happens to a Bottle Before It Reaches You

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 two sites, so here it is site by site.

Control pointWhat we doWhere
FormingNNPB 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.Shandong
AnnealingContainers 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.Both sites
Finish & sealing surfaceEvery 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 in Shandong, with an inspector checking behind it; at Xuzhou it is 100% manual inspection, backed by a randomised audit sample pulled every two hours, twelve times a day.Both sites
CapacityGob weight is held at the feeder, then brimful capacity is verified by water-fill weight. Routine on every production run, and it happens whether or not your specification calls for it. Mould numbers in the base mean a drift traces to the cavity that caused it.Both sites
Surface protectionHot-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.Shandong
PalletisingAutomatic palletisers take the bottles from inspection to the pallet without manual handling.Shandong

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.

Two Decades in Glass

From a single Shandong furnace in 2005 to two production sites, a decoration plant and offices abroad.

2005

MAIDAO's Shandong factory established

The group starts making glass in Shandong — serving China's liquor industry and international trading companies.

2013

SGSBOTTLE enters the international market

MAIDAO launches SGSBOTTLE as its export brand — one team handling global trade processes, documentation and requirements.

2016

Furnaces converted from coal to natural gas

Cleaner melting cuts CO2, SO2 and NOx emissions across the plants.

2019

First listed-company partnership

Cooperation begins with a Malaysian listed company (name withheld under NDA).

2020

Own decoration plant opens in Shandong

In-house deep processing comes online: screen printing, decals, paint spraying and plating under the group's own roof.

2021

Custom program for a Mexican brand

A well-known Mexican brand commissions distinctive custom bottles (name withheld under NDA).

2022

Named a key supplier by Technavio

Technavio lists the group among key suppliers in China's glass packaging sector.

2023

Top-3 UK beverage company signs on

After visiting the factories, one of the UK's three largest beverage companies agrees a cooperation framework (name withheld under NDA).

2023

Named a key supplier by Mordor Intelligence

Mordor Intelligence lists the group among key suppliers to China's glass packaging industry.

2024

Thailand office opens

A regional office in Thailand brings support closer to Southeast Asian buyers.

Cleaner Glass, Lower Footprint

Natural-gas melting, recycled cullet and lightweight NNPB forming — less carbon in every container you ship.

Gas-fired

Furnaces since 2016

Coal-to-natural-gas conversion cuts CO2, SO2 and NOx at the melt.

20–30%

Recycled cullet

High-quality recycled glass in every batch, with strict collecting and sorting standards.

NNPB

Lightweighting

Narrow-neck press and blow forms lighter bottles — less glass melted, less freight shipped.

100%

Endlessly recyclable

Glass recycles forever with no loss of purity or performance.

How we cut the footprint, in detail →

Certifications Your Market Can Verify

Ask for the certificate pack with your quote — or commission independent testing at SGS, TÜV or Bureau Veritas and we hand you the report.

ISO 9001:2015 certified quality managementSGS tested and verifiedEC 1935/2004 EU food-contact compliantCalifornia Prop 65 compliantRoHS compliantCNAS accredited testingUS FDA food-contact testing — CPG leachable lead and cadmiumChina GB national standards compliantEBO certification center verified
ISO 9001:2015 quality management system certificate issued to Maidao Industry Co., Ltd, certificate number 17325Q20948R0S
ISO 9001:2015 certificate 17325Q20948R0S — Maidao Industry Co., Ltd, valid to 4 August 2028
SGS test report on glass jars — US FDA CPG leachable lead and cadmium, result pass
SGS report — FDA CPG lead & cadmium test: pass
Independent laboratory test report for MAIDAO INDUSTRY glass containers
Independent lab test report — Wonder Testing
Technavio market researchMordor Intelligence market research

Named a major vendor among glass bottle manufacturers in China — in glass packaging industry reports by Technavio and Mordor Intelligence.

Inside the Glass Bottle Factory

The forming lines, quality lab and decoration hall your order moves through before it ships.

Put a Real Factory Behind Your Brand

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)

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