Thailand is becoming an increasingly important manufacturing location for the global sunglasses industry. In recent years, international and Asian eyewear manufacturers have established production facilities in Thailand to serve global brands and diversify their manufacturing operations.
However, the number of companies that can be clearly verified as actual sunglasses factorys in Thailand is still relatively limited.
Instead of listing trading companies, retailers, or lens-only manufacturers, this guide focuses on companies with identifiable manufacturing operations in Thailand and confirmed capabilities related to sunglasses production. Here are four manufacturers worth knowing if you are sourcing sunglasses or custom sunglasses from Thailand.
1. EssilorLuxottica (Thailand) Ltd.
- Location: Rayong, Thailand
- Company Type: Integrated eyewear manufacturer
- Main Products: Sunglasses, frames, ophthalmic lenses
- Manufacturing: Integrated production and assembly
EssilorLuxottica operates one of the largest eyewear manufacturing facilities in Thailand.
Its Rayong facility is an integrated manufacturing site covering approximately 220,000 square meters. The factory produces ophthalmic lenses and frames and also has manufacturing capabilities for sunglasses and complete eyewear assembly. The facility forms part of EssilorLuxottica’s global manufacturing network and serves international eyewear operations.
For buyers looking at large-scale eyewear manufacturing in Thailand, EssilorLuxottica represents a major integrated production operation rather than a small independent OEM factory.
Official Website: EssilorLuxottica
2. WEILAN Optical (Thailand)
- Location: Samut Prakan, Thailand
- Company Type: Eyewear OEM/ODM manufacturer
- Main Products: Sunglasses, optical frames
- Materials: Injection, acetate and metal
- Services: OEM and ODM
WEILAN Optical (Thailand) operates an integrated eyewear manufacturing facility in Samut Prakan.
According to the company’s official website, its Thailand factory produces optical frames and sunglasses and has production capabilities covering injection, acetate and metal eyewear. The facility also provides tooling, mold development, plating and laboratory testing capabilities. The company provides OEM and ODM manufacturing services for international brands, supporting customized designs and specifications from product development through mass production.
For brands looking for customized sunglasses or eyewear using injection, acetate or metal, WEILAN is one of the more directly relevant Thailand-based manufacturers.
Official Website: WEILAN Optical Thailand
3. Wonka Optical Thailand
- Location: Thailand
- Company Type: Eyewear manufacturer
- Established: 1980
- Main Products: Acetate sunglasses, optical frames, reading glasses
- Manufacturing: Integrated eyewear production
Wonka Optical Thailand is an established eyewear manufacturer with more than four decades of industry experience.
The company states that it has operated in the eyewear industry since 1980 and manufactures eyewear from its production base in Thailand. Its product range includes acetate sunglasses, reading glasses and optical frames. Wonka combines traditional eyewear manufacturing experience with modern production equipment and focuses on supplying international markets. Its product range makes the company particularly relevant to buyers looking for acetate sunglasses and other plastic eyewear products.
For brands interested in acetate sunglasses and established eyewear production experience, Wonka Optical Thailand is a manufacturer worth considering.
Official Website: Wonka Optical Thailand
4. Taihao Glasses (Thailand) Co., Ltd.
- Location: Samut Prakan, Thailand
- Company Type: Eyewear OEM/ODM manufacturer
- Established: 2026
- Main Products: Sunglasses, optical glasses, reading glasses
- Materials: PC, TR and metal
- Manufacturing: Injection molding and metal production
Taihao Glasses (Thailand) is a relatively new eyewear manufacturing operation established by Wenzhou Zhantai Glasses.
The Thailand factory was officially announced in January 2026. The facility is located in Samut Prakan and focuses on injection molding and metal production. Its product range includes sunglasses, optical glasses and reading glasses, with materials such as PC, TR and metal. The factory is particularly relevant to buyers looking for injection sunglasses and other high-volume eyewear products.
Because the Thailand factory is newly established, buyers should confirm current production capacity, MOQ, sample lead time and available customization options directly with the manufacturer before placing a large order.
Official Website: Taihao / Zhantai Glasses
An Alternative for Global Sunglasses Buyers: ReOptical
Thailand is not the only manufacturing option for companies sourcing sunglasses and eyewear in Asia. For buyers who are also considering China-based eyewear manufacturers, ReOptical provides another option for sunglasses, optical lenses and eyewear-related products.
- Company: ReOptical
- Location: China
- Company Type: Eyewear manufacturer and supplier
- Main Products: Sunglasses, optical lenses and sunglass cases
- Services: OEM/ODM and private-label production
ReOptical is a China-based eyewear manufacturer serving international B2B customers.
The company provides sunglasses and optical lens solutions for brands, distributors, wholesalers and other eyewear businesses. Its product capabilities include customized sunglasses, optical lenses and sunglass cases. For sunglasses brands, ReOptical can support customized products, including frame materials, lens options, logo application and packaging according to project requirements.
Unlike the four companies listed above, ReOptical is not a Thailand-based factory. It is included here as an alternative for buyers who are comparing manufacturing options across Asia rather than limiting their sourcing to Thailand.
For buyers comparing Thailand and China, factors such as MOQ, product customization, materials, production capacity, lead time, quality requirements and total sourcing cost should all be considered before selecting a manufacturing partner.
Official Website: ReOptical
Thailand vs. China for Sunglasses Manufacturing
Thailand and China both offer manufacturing options for international sunglasses brands, but their manufacturing ecosystems are different. Thailand has a growing eyewear manufacturing base and can be an option for companies looking to diversify their supply chain. China has a much larger and more established eyewear manufacturing ecosystem, with a wide range of factories specializing in acetate, injection, metal, TR and other materials. The right choice depends on the buyer’s specific requirements, including:
- Product type
- MOQ
- Production volume
- Customization
- Materials
- Lead time
- Quality requirements
- Supply chain requirements
- Target market
For this reason, buyers should compare individual factories rather than choosing a manufacturing country based on location alone.
Final Thoughts
Thailand has a growing eyewear manufacturing industry, with several genuine factories producing sunglasses and other eyewear products. The manufacturers covered in this article represent different parts of the Thai eyewear manufacturing landscape:
- EssilorLuxottica — large-scale integrated eyewear manufacturing
- WEILAN Optical — OEM/ODM sunglasses and eyewear production
- Wonka Optical Thailand — established acetate eyewear manufacturing
- Taihao Glasses Thailand — newer injection and metal eyewear production
For buyers who are also considering China, ReOptical provides an additional manufacturing option for sunglasses, optical lenses and sunglass cases.
Whether sourcing from Thailand or China, buyers should verify the manufacturer’s current production capabilities, MOQ, lead time, quality standards, certifications and export experience before placing an order. Choosing a factory based on verified manufacturing capabilities rather than simply the number of suppliers available can help create a more reliable long-term eyewear supply chain.