The Global Low-thermal-expansion Transparent Glass-ceramic Market was valued at USD 284.7 Million in 2025 and is projected to reach USD 412.3 Million by 2034, growing at a Compound Annual Growth Rate (CAGR) of 5.8% during the forecast period (2024–2034). This robust growth is being fueled by escalating demand from semiconductor lithography equipment, next-generation telescopes, and high-performance optical applications where dimensional stability under thermal stress is critical.

As industries push the boundaries of precision engineering, the demand for materials that can withstand extreme thermal fluctuations without distorting is paramount. This spotlight falls squarely on the specialized manufacturers of low-thermal-expansion transparent glass-ceramics. In this blog, we profile the Top 10 Companies in the Low-thermal-expansion Transparent Glass-ceramic Industry—a group of advanced materials specialists and glass science innovators shaping the future of high-tech manufacturing and scientific discovery.

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🔟 1. Corning Incorporated

Headquarters: Corning, New York, USA
Key Offering: ULETM (Ultra Low Expansion) Glass-ceramic

Corning is a global pioneer in specialty glass and ceramics, with its ULETM material being the industry benchmark for ultra-low thermal expansion. This material is essential for critical components in semiconductor photolithography systems, astronomical telescope mirrors, and precision optics, offering near-zero expansion over a wide temperature range.

Innovation and Applications:

• Primary supplier for EUV lithography machine mirrors

• Materials for the primary mirrors of major astronomical observatories

• Continuous R&D investment in next-generation glass-ceramic compositions

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9️⃣ 2. SCHOTT AG

Headquarters: Mainz, Germany
Key Offering: ZERODUR® glass-ceramic

SCHOTT AG is a world leader in specialty glass, with its ZERODUR® brand being synonymous with high-precision, zero-expansion glass-ceramic. It is the material of choice for the world’s largest telescopes, including the Extremely Large Telescope (ELT), and is critical in aerospace and high-energy laser systems.

Innovation and Applications:

• Dominant market share in astronomical telescope substrates

• Expanding applications in semiconductor metrology and space optics

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8️⃣ 3. Nippon Electric Glass Co., Ltd. (NEG)

Headquarters: Otsu, Shiga, Japan
Key Offering: NEOCERAM™ glass-ceramics

Nippon Electric Glass is a major global supplier of specialty glass, offering a range of NEOCERAM™ glass-ceramics with tailored thermal expansion properties. The company serves diverse markets, including consumer electronics (cooktops), optical communications, and industrial equipment requiring thermal stability.

Innovation and Applications:

• High-volume production for consumer appliance markets

• Development of transparent glass-ceramics for new optical applications

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7️⃣ 4. Ohara Corporation

Headquarters: Sagamihara, Kanagawa, Japan
Key Offering: CLEARCERAM®-Z

Ohara Corporation specializes in optical glass and glass-ceramics, with its CLEARCERAM®-Z product line offering extremely low thermal expansion coefficients. The company is a key supplier to the precision optics industry, providing materials for photomask substrates, wafer stepper lenses, and measurement equipment.

Innovation and Applications:

• Critical supplier to the semiconductor capital equipment sector

• Strong focus on high-purity, defect-free materials for lithography

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6️⃣ 5. Okamoto Glass Co., Ltd.

Headquarters: Utsunomiya, Tochigi, Japan
Key Offering: Custom low-expansion glass-ceramics

Okamoto Glass is a specialized manufacturer of high-performance glass and glass-ceramics, with expertise in producing materials with precisely controlled thermal expansion properties. The company serves niche markets in industrial instrumentation, research optics, and specialized semiconductor tools.

Innovation and Applications:

• Custom formulation capabilities for specific customer requirements

• Focus on high-value, low-volume specialized applications

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5️⃣ 6. SINOMA (China National Materials Group Co., Ltd.)

Headquarters: Beijing, China
Key Offering: Advanced technical ceramics and glass-ceramics

As a major state-owned enterprise, SINOMA is a significant player in China’s advanced materials sector. The company is expanding its capabilities in high-performance glass-ceramics, supporting the country’s growing semiconductor, aerospace, and defense industries with domestic supply chains.

Innovation and Applications:

• Strategic focus on import substitution for critical high-tech materials

• Investment in R&D for next-generation optical materials

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4️⃣ 7. JINGNIU GLASS CERAMICS GROUP

Headquarters: Zibo, Shandong, China
Key Offering: Architectural and technical glass-ceramics

JINGNIU GLASS CERAMICS GROUP is one of China’s prominent manufacturers of glass-ceramic products. While historically strong in architectural applications, the company is increasingly developing and marketing transparent, low-expansion grades for technical and optical uses in the domestic market.

Innovation and Applications:

• Leveraging large-scale production expertise for technical markets

• Growing presence in Asian optical and electronics supply chains

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3️⃣ 8. Tianjin Jintai Special Glass Co., Ltd.

Headquarters: Tianjin, China
Key Offering: Borosilicate and specialized glass-ceramics

Tianjin Jintai Special Glass specializes in high-temperature and chemically resistant glass products, including formulations with low thermal expansion characteristics. The company supplies industries ranging from laboratory equipment to specialized lighting and optical components.

Innovation and Applications:

• Expertise in glass compositions for harsh environments

• Expanding product portfolio to address precision optical demands

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2️⃣ 9. Kanger Glass-Ceramics (Kedali)

Headquarters: Guangzhou, Guangdong, China
Key Offering: Glass-ceramic panels and technical components

Kanger Glass-Ceramics, part of the Kedali Group, is a significant manufacturer with a focus on both consumer and industrial glass-ceramic products. The company is investing in advanced manufacturing technologies to produce high-purity, low-expansion materials for technical applications.

Innovation and Applications:

• Integration of upstream raw material processing for quality control

• Strategic positioning in the global supply chain for electronics

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1️⃣ 10. Hubei Xiaoguang Special Glass Co., Ltd.

Headquarters: Jingzhou, Hubei, China
Key Offering: Ultraviolet-transmitting and low-expansion glass-ceramics

Hubei Xiaoguang Special Glass specializes in niche glass-ceramic products, including materials that combine low thermal expansion with specific optical transmission properties. The company serves specialized markets in UV optics, scientific instrumentation, and custom optical assemblies.

Innovation and Applications:

• Niche expertise in UV-transparent glass-ceramics

• Collaborative development projects with research institutions

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🔭 Outlook: The Future of Low-thermal-expansion Glass-ceramic Is Driven by Extreme Precision

The low-thermal-expansion transparent glass-ceramic market is in a transformative phase. As technological demands escalate, the material requirements are becoming more stringent, driving innovation in material purity, expansion coefficient consistency, and large-format manufacturing capabilities.

📈 Key Trends Shaping the Market:

• Demand for larger, more homogeneous blanks for next-generation EUV lithography

• Growth in ground-based and space-based astronomical observatories requiring massive, stable mirrors

• Expansion into new applications in quantum computing, high-energy lasers, and aerospace sensors

• Geographic diversification of supply chains, with growing manufacturing capacity in Asia

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Low-thermal-expansion Transparent Glass-ceramic Market – View in Detailed Research Report

The companies listed above are not only supplying critical materials—they are enabling the next wave of technological advancement across semiconductors, astronomy, and advanced optics.

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