About us

KARUSON is a leading eyewear factory specializing in custom glasses, lenses, and sport sunglasses. With 15+ years of expertise and advanced factories in Dongguan and Guangzhou, we deliver high-quality, tailored eyewear solutions worldwide. Trust KARUSON for precision and innovation.

A Leading Eyewear Factory Driven by Quality and Innovation

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Inheriting the core philosophy of “Quality Products, Brand Excellence,” Karuson International Co., Ltd. has established itself as a premier eyewear factory and strategic OEM/ODM partner. With 15+ years of mastery in the optical industry, we specialize in the comprehensive design and manufacturing of a wide array of products, including trend-setting sunglasses, precision optical frames, reading glasses, and high-performance sports goggles.

As a vertically integrated eyewear factory, we provide end-to-end solutions that extend beyond frames to include high-quality accessories such as customized pouches, microfiber cleaning cloths, and premium packaging sets. To further streamline our clients' supply chains, our dedicated sourcing team also provides integrated procurement for complementary items like branded apparel and athletic gear.

Our world-class manufacturing standards have earned the trust of a vast global clientele, particularly across Spain, Europe, and the Americas. Today, Karuson is not only recognized as a reliable eyewear factory with a stellar reputation but also as an influential industry force that continues to shape the future of global eyewear fashion.

Sunglasses-factory（under-construction） - KARUSON

Over three decades of expertise in eyewear design and manufacturing

Dongguan & Guangzhou factories, enabling flexible production and fast delivery

Acres

Large-scale factory footprint for high-volume, efficient production

100

Serving over 100 brands, trusted by international brands worldwide.

Company Advantages

15+ Years of Eyewear Expertise

Since 2010, our Taiwan and Guangzhou facilities have built a complete eyewear manufacturing ecosystem, ensuring stable quality, reliable delivery, and trusted industry credibility.

Strong OEM & ODM Competency

We provide end-to-end development services—from concept sketches and 3D design to sampling, mold making, production, and global shipment.

Sunglasses-Focused Product Expertise

Our core expertise lies in sunglasses, supported by reading glasses, optical eyewear, sports eyewear, fashion frames, and accessories.

Fast Sampling & Flexible MOQ

Thanks to efficient internal structure, we support rapid prototyping, small-batch trial orders, and seamless scale-up production.

Strong Original Design & Trend Insight

Our R&D center is located in Guangzhou’s commercial core, allowing us to stay aligned with fashion movements, sports demands, and global aesthetic shifts.

Proven Global Export Experience

Our products are supplied to global fashion brands, optical distributors, e-commerce chains, promotional firms, and OEM buyers across Europe, America, Asia, and Oceania.

Integrated Quality Assurance System

Strict material screening, mold precision, coating quality, UV protection testing, and full inspection ensure safety and compliance.

Design Value + Branding Support

We help customers enhance brand value through collection planning, packaging design, logo application, and market insight.

strength

Factory & Capacity

○ Production Base Overview

Karuson operates manufacturing facilities in Dongguan and Guangzhou, combining precision engineering with efficient volume production.

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○ Factory Size & Structure

Factory area: 40,000 m²

6 automated production lines

digital-manufacturing-sunglasses - KARUSON

Dedicated R&D laboratory

Independent coating, polishing, logo, assembly, and finishing workshops

○ Workforce & Expertise

800 skilled technicians

Senior engineers for optics and structure

Experienced QC inspectors

In-house design team

○ Quality Assurance & Testing

Including:

▪ Lens UV400 test

▪ Drop ball impact test

▪ Salt spray resistance

▪ Lens coating testing

▪ Frame tolerance inspection

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○ Capacity & Efficiency

Our efficient production facilities ensure fast turnaround times and high-quality eyewear, meeting large-scale demand.

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Monthly output

100,000–300,000 pcs

Sampling lead time

7-10 days

Mass production

30-45 days depending on complexity

○ Logistics & Export Capability

▪ Adjacent to Guangzhou Baiyun International Airport

▪ Sea freight, air freight, rail and courier options

▪ Fast customs clearing support

Ensure efficient and timely global delivery.

Optical Lens Technology Strength

Karuson is not only a frame manufacturer—we are one of the few OEM/ODM companies capable of mastering full-process lens engineering, from material selection to curve forming and performance coating.

Multiple professional-grade lens materials

We offer PC, TAC, Nylon and CR39 lenses in engineered thickness ranges to meet optical safety and mechanical strength requirements.

Precision curvature shaping for fashion & sport eyewear

We manufacture 4C–9C lens curvatures, including one-piece shield lenses supported in high-performance sports glasses.

Optical Performance Solutions

Our lenses support : UV400+ protection, Polarized and unpolarized systems, Optical comfort tuning, Impact-resistant performance.

Technician in cleanroom attire inspecting an array of reflective mirrors within a scientific or industrial setting. - KARUSON

Lens Surface Technology—Coating Innovation

We apply multiple proprietary coating layers designed for both aesthetics and durability: strength coating, anti-scratch, anti-reflective, UV radiation resistance, oil & water repellent, salty water resistance, and blue-light anti-glare coating.
This is the technology that differentiates Karuson eyewear from standard OEM producers.

Branding Customization on Optical Level

Lens branding options include laser engraving, coating mark printing, and silk-screen logos.
Make lenses not just “parts,” but carriers of brand value.

Lab Testing & Quality Assurance

We conduct optical clarity tests, UV absorption tests, adhesion & durability tests, and functional coating lifespan validation.
This ensures that Karuson lenses do not just meet standards—they exceed them.

Get in Touch with Us

Have questions or want to learn more about our products?

Reach out, and we'll be happy to assist you with all the information you need.

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Contact KARUSON

Email:

nicole@karusonco.com

WhatsApp/Phone:

+86 158 1710 2455

Address:

331 Section B, WanJia Creative Park , No. 1 BUXIA Road ,Tianhe District, Guangzhou City, Guangdong Province, China.

We’re here

Monday to Friday, 9 a.m. to 6 p.m.

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