- CEO
- Hyun-Il Jo
- Sector
- Electronic technology
- Industry
- Electronic components
- Address
- Cheongju-si South Korea
- IPO Date
- Nov 17, 2025
- Business
- Green Optics Co., Ltd. is a South Korea-based precision optical solutions company engaged in the design, development, fabrication, and integration of ultra-precision optical materials, components, and specialized optical systems. Founded in 1997 and headquartered in Cheongju-si, Chungcheongbuk-do, South Korea, the company provides comprehensive, end-to-end optical engineering and manufacturing capabilities covering optical and opto-mechanical design, ultra-precision grinding and polishing, magneto-rheological finishing (MRF), thin-film coating, cleanroom module assembly, and metrology testing. The company offers a broad portfolio of products and services across multiple advanced technology sectors: optical materials and precision components, including domestically synthesized high-purity zinc sulfide (ZnS) infrared optical materials, spherical and aspherical lenses, cylindrical lenses, optical prisms, precision mirrors, industrial windows, optical domes, micro-optics, and large-aperture optical elements; defense and aerospace optical systems, including infrared guided missile seeker optics, ring laser gyroscope (RLG) optical assemblies, laser-directed energy weapon systems, spaceborne optical observation cameras, and large satellite reflectors; industrial and high-tech equipment modules, including semiconductor inspection and wafer metrology optical modules, flat-panel display lithography and exposure equipment sub-assemblies, infrared (IR) thermal imaging modules, biomedical optics, and head-mounted/heads-up display (HMD/HUD) optical assemblies; and specialized engineering services, including custom opto-mechanical system design, specialized thin-film optical coating, ultra-precision surface processing, cleanroom integration, and comprehensive optical evaluation services. Green Optics serves commercial, defense, and government customers across the defense, aerospace, semiconductor, flat-panel display, biotechnology, and industrial automation sectors, maintaining global business reach and partner relationships across South Korea, the United States, Germany, Israel, Japan, China, and Malaysia. In major corporate developments, Green Optics completed its initial public offering and listed on the KOSDAQ market (KRX: 0015G0) under South Korea's technology-growth special listing framework in November 2025. Following its public listing, the company has accelerated the international expansion of its proprietary zinc sulfide (ZnS) material business, securing multi-billion-won commercial export contracts with global defense solution providers, including major supply agreements with Israeli defense contractors in 2026, while expanding its production capacity to meet growing global demand in defense infrared optics and advanced semiconductor equipment markets.