How to Find Eyewear Manufacturers in China: Five Production Hubs and a Sourcing Process

For most wholesalers and optical retailers, the question is not whether to look at China for eyewear, but where to look and how to tell a dependable manufacturer from a risky one. The country is among the world's largest producers of frames and lenses, with several clusters that each have their own strengths. Knowing which cluster fits your needs saves months of searching.

This guide explains the five main production hubs, what each is known for, and a practical process for finding, verifying and testing eyewear manufacturers. Figures come from published reports and are given with their year, because industry numbers change and are not always measured the same way.

Where Can You Source Optical Products and Eyewear From Asian Manufacturers?

Buyers often ask where they can source optical products and eyewear from Asian manufacturers. China is the main answer for breadth and scale, covering frames, lenses, cases and accessories. Other Asian sources have a different role:

• Japan. Sabae in Fukui is known for premium frames and a reputation in titanium. It is a smaller, brand-led and higher-priced source.

• South Korea. Daegu has a long metal-frame tradition and Korean design brands are well known, but domestic frame production has been shrinking while the brand side has grown.

• China. Offers the widest range of materials, sizes and price points, from entry level to premium, with strong customization options.

The rest of this guide focuses on China, because that is where most wholesale buyers will do the bulk of their sourcing.

China's Five Main Eyewear Production Hubs

Eyewear manufacturing in China is concentrated in a handful of clusters. Five are most often named: Danyang in Jiangsu, Shenzhen in Guangdong, Xiamen in Fujian, Wenzhou in Zhejiang and Yingtan in Jiangxi.

Treat these numbers as indicators of scale, not precise comparisons. Different sources count enterprises and output differently.

Danyang: Lenses and a Complete Supply Chain

Danyang, in Jiangsu Province, is often called the city of glasses. Reports describe it as the world's largest lens manufacturing hub, with the industry dating back to the 1960s, a large number of eyewear enterprises and a supply chain that covers materials, lens making, frame making and accessory sourcing. A 2025 report cited more than 1,600 eyewear manufacturing and related businesses, nearly 1,000 eyewear design professionals and more than 3,000 new styles a year.

Danyang tends to suit buyers who want frames, lenses and accessories from one area, and buyers who want to compare many suppliers in a single trip. Because of the sheer number of businesses, quality and professionalism vary widely, so verification matters.

Shenzhen: Frame Manufacturing and Brand Work

Shenzhen's eyewear industry is concentrated mainly in Henggang and Yuanshan in Longgang District. A district report from late 2022 cited more than 800 eyewear companies, production of more than 125 million pairs a year and an industry output of nearly 10 billion yuan, with Henggang reported to have won a large share of global orders for high-end frames.

Many Shenzhen manufacturers began by producing frames for other brands and have since added their own brands and design capabilities. Shenzhen tends to suit buyers looking for well-finished metal, titanium and acetate frames and those planning private-label or custom projects.

Xiamen: Sunglasses and Fashion Eyewear

Xiamen is described as one of China's top five eyewear hubs. A December 2025 report cited more than 300 eyewear enterprises, annual output above 10 billion yuan for several years, more than 20 companies with annual output above 1 billion yuan, and mid-to-high-end sunglasses holding a large share of the domestic market. The city also hosts an international optics fair and a growing group of smart eyewear companies.

Xiamen tends to suit buyers focused on sunglasses and fashion-led designs, and those who want to meet domestic brands and manufacturers at trade fairs.

Wenzhou: A Frame-Focused Industry Chain

Wenzhou, especially the Ouhai district, has a long-established eyewear industry. A 2018 report described a chain covering research and development, design, manufacturing and marketing, with more than 500 related companies and over 60,000 employees, and exports to nearly 100 countries and regions in 2017. Local industry descriptions also mention supporting suppliers for tools, molds, plating and accessories.

These figures are older, so check the current picture directly. Wenzhou tends to suit buyers who want a wide choice of frame suppliers and are comfortable comparing many factories. Glasses cases and packaging suppliers are also commonly found around Wenzhou.

Yingtan: The Emerging Hub

Yingtan, particularly the Yujiang district in Jiangxi, is described as one of China's five main eyewear hubs. A July 2025 report said its industrial zone had about 260 companies at the end of 2024 and annual main business income of about 10.8 billion yuan. Local plans aim to shift from traditional manufacturing toward design, R&D, sales and services, and the district has attracted smart glasses companies.

Yingtan is newer to manufacturing than the other four. It may suit buyers who are curious about newer suppliers and smart eyewear, but give yourself extra time for due diligence, as track records are shorter.

Which Hub Fits Which Buyer?

This is a starting point, not a rule. Excellent and poor suppliers exist in every hub, and many manufacturers sell far beyond their home city.

A Step-by-Step Process for Finding the Right Manufacturer

Step 1: Define what you need

Write down materials, styles, size ranges, price positioning, expected quantities and whether you need custom work. A clear brief makes every conversation faster.

Step 2: Choose where to look

Use the hub guide above to decide where to focus. Combine online research, trade fairs such as optical fairs held in cities like Xiamen, Shanghai and Hong Kong, and referrals from other buyers.

Step 3: Build a shortlist

Aim for a handful of suppliers per product category. Ask each one the same questions so you can compare answers fairly.

Step 4: Verify who they really are

• Is it a factory or a trading company? Both can work, but you should know which.

• Ask for business registration details and check them independently.

• Request a video tour of the production floor and quality area.

• Consider an independent inspection or audit for larger commitments.

• Ask for references from existing buyers in markets similar to yours.

Step 5: Order samples

Check hinge feel, polish, color accuracy, fit and packaging. Compare the same style from different suppliers side by side.

Step 6: Place a small trial order

Start with a modest order and examine consistency, packing, delivery and communication. A second order shows whether quality holds.

Step 7: Agree terms in writing

Confirm specifications, approval samples, quality standards, payment terms, delivery schedules and how defects are handled. Clarify who owns custom designs.

Questions to Ask Every Supplier

• Do you manufacture the frames yourselves, and which processes do you outsource?

• Which materials do you work with, and can you name them specifically?

• How do you inspect frames before shipment?

• What are your sampling steps and how are approvals recorded?

• How do you handle defects, replacements and missing parts?

• What are your terms for minimum quantities, lead times and payment?

Red Flags to Watch For

• Vague answers about materials or who actually makes the product.

• Unwillingness to provide samples, a video tour or business details.

• Prices far below comparable offers with no clear reason.

• Pressure to pay in full before any samples or checks.

• Sample quality that does not match later production.

• Promises that sound too good, such as perfect quality at the lowest price with instant delivery.

No single warning sign proves a problem, but several together are reason to slow down.

Quality Control and Logistics Basics

Before shipping, agree on what will be checked: surface finish, hinge function, size and color consistency against the approved sample, and packing. Decide whether you will inspect yourself, use a third party or rely on the supplier's own checks.

Also plan logistics early. Discuss packing methods, shipping options and documentation, and check what labeling or compliance requirements apply in your destination market.

Where IU Eyewear Fits

IU Eyewear is based in Danyang, one of the hubs described above, and supplies glasses frames to wholesalers and optical retailers. If you are building a range of optical frames and want to start with a reliable supplier, you can assess IU Eyewear the same way you would any other: review the catalog, request samples and compare.

Conclusion

Finding the right eyewear manufacturer in China comes down to choosing the right hub for your needs, verifying who you are dealing with and testing quality step by step. Start with a clear brief, build a short list, check samples and begin with a small trial order. A methodical approach is the best protection against surprises.

To see what a Danyang-based supplier can offer, explore wholesale glasses frames from IU Eyewear.

To view styles and materials, download our wholesale glasses frames catalog.

For questions about samples or sourcing, contact IU Eyewear and our team will be glad to help.