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01 / 07 About Constar
About Constar Factory FDA · CE · ISO
Est. 1984 Baiyin, Gansu · China
Six facilities. Fifteen million lenses a month.

Built to supply the world's brands.

One of China's largest independent contact lens manufacturers — engineered for scale, built on certification, trusted by distributors and brand owners across 40+ countries on four continents.

40yr
Heritage
Since 1984
6
Facilities
Gansu · Hunan
15M/mo
Capacity
4th-gen process
40+
Countries
Active markets
Scroll to begin
Milestones

From agency to
global manufacturer.

Nearly two decades of continuous investment in production capability, certifications, and R&D — every step taken to expand what we can offer our global partners.

2005
Company founded, starting with agency business for Korean contact lenses.
2008
First in-house production of colored contact lenses successfully launched.
Manufacturing begins
2012
Gansu Constar Technology Group established; standardised production launched.
2014
"Constar" recognised as a Famous Trademark of China.
2015
Launched multi-purpose contact lens care solution; upgraded to sandwich printing technology for enhanced safety.
2017
Obtained CE certification (EU) and ISO 13485 quality management certification.
Market entry unlocked
2019
Formed strategic partnership with SEED Co., Ltd. (Japan), one of the world's leading contact lens brands.
2020
Applied laser engraving technology to contact lenses for clearer, thinner designs.
2022
Upgraded to 4th-generation production process. Monthly capacity reached 15 million lenses.
Scale breakthrough
2023
Awarded patent for high oxygen-permeable silicone hydrogel formulation. Obtained marketing approval for colored toric lenses (model AC40).
2024
Obtained U.S. FDA clearance, Australian TGA certification, and other international regulatory approvals for contact lenses.
Global compliance
Certifications

Whatever market you're entering,
we have the paperwork.

We are the only contact lens manufacturer in China to hold FDA, CE, and ISO 13485 simultaneously — plus a full range of regional approvals. Your products clear customs and reach shelves in virtually any market in the world.

Core Certifications The three that open every major market
FDA certificate
FDA
United States
CE 0197 certificate
CE 0197
European Union
ISO 13485 certificate
ISO 13485
Global Standard

FDA, CE 0197 and ISO 13485 are the foundation.

With these three in place, our products qualify for registration and entry into virtually every other market worldwide — they are the gateway certifications that make all other regional approvals possible. No other contact lens manufacturer in China holds all three at once.

Regional Certifications Direct entry into key territories
TGA certificate
TGA
ARTG · 2024
Australia
Therapeutic Goods listing
SFDA certificate
SFDA
License · 2024
Saudi Arabia
Saudi FDA approval
AKL certificate
AKL
Kemenkes · 2024
Indonesia
Medical device permit
TFDA certificate
TFDA
License · 2023
Thailand
Thailand FDA licensing
Class B certificate
Class B
Registration · 2024
Vietnam
Medical device class B
Additional regional approvals
Beyond the eight certifications above, we hold China NMPA medical device manufacturing and business licences, plus Chinese famous trademark registration. Full supporting documentation is provided with every export shipment.
What this means for you
No more chasing paperwork from multiple suppliers. Every shipment arrives with the correct HS codes, CoC, QC reports, and regulatory filings for your destination market — reducing customs clearance time and import risk.
R&D and Technology

Precision is engineered,
not claimed.

Six patented processes and six technological capabilities that define our manufacturing standards. Built into every lens, visible in every batch.

Contact lens structure — precision manufacturing
TECH / 01
Pigment sealing layer
Three-layer sandwich structure
Pigment is completely sealed between transparent lens layers. Eliminates direct contact with the eye, preventing allergic reactions and infection risks during long-term wear.
Dual-layer sealing · Zero leaching
Laser engraving precision equipment
TECH / 02
Laser patterning
Laser engraving precision
Introduced in 2020. Produces clearer, thinner lens designs while maintaining structural integrity. A full generation ahead of conventional printing methods.
2020 upgrade · Gen-4 process
Automated optical inspection robotics
TECH / 03
AOI · AGV logistics
AOI + AGV automation
Aluminum-driven automated optical inspection with multi-layer quality control and random QA checks. AGV logistics reduce human intervention, targeting a zero-defect output.
500+ machines · 70+ QC units
Silicone hydrogel lens material research
TECH / 04
Hydrogel formulation
Silicone hydrogel · Dk/t > 110
Patented high oxygen-permeable formulation (2023). Promotes corneal oxygenation, reduces dryness and hyperemia. Paired with MPC coating for maximum wearer comfort.
Dk/t > 110 · Water content 43–55%
UV protection lens technology
TECH / 05
UV filter layer
UV blocking technology
Patented UV-filtering lenses block 99% of UVB and up to 90% of UVA rays, protecting eye tissue from cumulative damage without compromising breathability or comfort.
UVB 99% · UVA 90% blocked
FDA-approved pigment color palette
TECH / 06
Color calibration
FDA-approved pigments
Every color in our portfolio uses FDA-approved pigments safe for human use — available in hundreds of shades calibrated to match diverse iris tones across global markets.
FDA-approved · 300+ patterns
Design & Sampling

1,000 new patterns,
every month.

A dedicated design and analysis team continuously developing new patterns, colors, and structural refinements — so your catalog is always a season ahead of your competition.

Design team analyzing new contact lens patterns
Design Studio · Pattern development
1,000+
New / month
Original patterns
3–7d
Sample time
vs 14+ industry avg
4,000+
In stock
Ready for OEM

Our in-house design team works as a strategic extension of your brand. From trend research to color calibration and pattern analysis, we produce detailed, accurate samples delivered to your door within a week — often faster than competitors can confirm their first specifications.

Dedicated account designer assigned per client project
Color calibration to match target market preferences
Private pattern mold development for exclusive designs
Physical samples and digital packaging proofs in parallel
Production Capacity

Scale to match
your ambition.

Six production facilities across Gansu and Hunan provinces. 4th-generation manufacturing processes. Built to handle volumes from 500-piece test orders to multi-million-unit annual contracts.

Constar manufacturing facility exterior — Gansu
Gansu Base
01
Constar manufacturing facility exterior — Gansu
Gansu Base
02
Constar manufacturing facility exterior — Hunan
Hunan Base
03
Constar manufacturing facility exterior — Hunan
Hunan Base
04
Gansu Province · 3 facilities Hunan Province · 3 facilities
Our manufacturing entities
01 · Headquarters
Gansu Constar Technology Group Co., Ltd.
BAIYIN, GANSU PROVINCE
02
Gansu Kangshili Contact Lens Co., Ltd.
LENS MANUFACTURING · GANSU
03
Gansu Tiahou Optical Technology Co., Ltd.
OPTICAL R&D · GANSU
04
Hunan Haipuming Technology Co., Ltd.
PRODUCTION · HUNAN
05
Hunan Duofuli Optical Technology Co., Ltd.
PRODUCTION · HUNAN
06
Hunan Liangguo Technology Co., Ltd.
PRODUCTION · HUNAN
15M
Monthly capacity
Lenses produced per month across all facilities
6
Production facilities
Independent subsidiaries under one group
500+
Automation units
4th-generation production equipment
70+
QC devices
Inspection and quality testing units
Visit / Contact

See it for
yourself.

Qualified buyers are welcome to visit our production facilities in Baiyin, Gansu. We prepare dedicated walkthroughs of our production lines, quality labs, and design centre. Please apply at least 3 weeks in advance.

Headquarters
Gansu Constar Technology Group Co., Ltd.
No. 10, Chuangxin South Road, Baiyin District, Baiyin City, Gansu Province, China
ZIP 730900 · GANSU · PRC
Book a factory visit
Please submit at least 3 weeks before your intended visit date.
Visit requests are reviewed within 12 hours.
Your information is kept strictly confidential.