Producer
Corning
U.S. specialty glass maker (NYSE: GLW); supplier of EXTREME ULE (Ultra-Low Expansion) glass substrates to Hoya and AGC for use as the raw base material of EUV photomask blanks. Received $32M CHIPS Act funding to expand Canton, NY plant for EUV substrate production (2025-2026 timeline). Corning supplies substrates only — not finished blanks (Mo/Si coating performed in-house by Hoya/AGC). Also makes optical fiber, Gorilla Glass for mobile devices, pharmaceutical packaging glass, and display glass.
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Inputs supplied
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Goods downstream
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Facilities
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Stories
What they make
3 inputs Corning supplies
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Goods downstream
Essential goods that depend on something Corning makes — pick one to see the full supply chain.
Where they make it
4 facilities
Corning Canton ULE Glass Substrate Plant (New York) →
USNew York · manufacturing
Corning Canton, NY facility producing EXTREME ULE (Ultra-Low Expansion) glass for EUV photomask blank substrates. Received $32M CHIPS Act funding to expand capacity (2025-2026 timeline). Supplies raw substrates to Hoya and AGC — NOT finished blanks. Mo/Si multilayer coating performed exclusively in-house at Hoya Kumamoto and AGC Koriyama. Source: https://marklapedus.substack.com/p/corning-expands-glass-production
Corning Harrodsburg Glass Fab (Kentucky) →
USKentucky · fab
Corning Incorporated's primary display glass substrate manufacturing plant in Harrodsburg, Mercer County, Kentucky. Produces Corning Lotus NXT and Eagle XG glass substrates used as the base for virtually all LCD and OLED display panels. Corning holds approximately 60% of global display glass substrate supply; the Harrodsburg plant is Corning's largest U.S. display glass facility. Display glass must be made near-zero impurities (5 parts per billion iron), thermally stable, and ultra-flat — Corning's fusion draw process is the only method capable of meeting these specifications at scale. Without Corning's glass substrates, all major display panel fabs (BOE, AUO, Innolux, LG Display) would halt production within weeks. Source: https://www.corning.com/worldwide/en/innovation/corning-emerging-innovations/corning-lotus-nxt-glass.html
Corning Hickory Cable Manufacturing Campus →
USHickory, North Carolina · cable_plant
Undergoing $267M expansion (groundbreaking March 2026) anchored by a multi-year up-to-$6 billion supply agreement with Meta. Will become the world's largest fiber-optic cable plant upon completion.
Corning Wilmington Optical Fiber Plant →
USWilmington, North Carolina · preform_plant
Over 1 million sq ft; world's first commercial optical fiber plant (1974); currently one of the largest OVD preform and fiber drawing complexes globally.
What else they do
Business segments
The company's full revenue map — where this supply-chain role fits within their broader business.
Optical Communications (Fiber + Cable)
35%Display Technologies (LCD + OLED Glass)
25%Specialty Materials (Gorilla Glass + EUV + Semiconductor)
22%Environmental Technologies (Catalytic Converter Substrates)
10%Life Sciences (Pharmaceutical + Lab Glass)
8%
Intelligence
What's known
Sourced claims about this company's role in supply chains — chokepoints, concentration, incidents, dual-use connections.
Did you know2023
Corning Incorporated is the canonical example of a company whose glass science expertise spans entirely unrelated industries: (1) Gorilla Glass for smartphone screens (consumer electronics); (2) cordierite ceramic substrates inside every automotive catalytic converter (transportation/environment); (3) EXTREME ULE glass substrates for EUV photomask blanks used in sub-7nm chip fabrication (semiconductor); (4) borosilicate Valor pharmaceutical vials for injectable COVID vaccines (healthcare); (5) optical fiber preforms for fiber-to-the-home broadband (telecom). The same Corning, New York company makes the glass you stare at on your iPhone, the ceramic that removes carbon monoxide from your car's exhaust, the substrate for the mask that prints the chip inside your iPhone, and the vial that contained your COVID vaccine. Five completely different supply chains — all running through one specialty glass company.
Corning Incorporated ↗Capacity2023
Corning's EXTREME ULE (Ultra-Low Expansion) glass is the raw substrate for EUV photomask blanks used in leading-edge semiconductor fabrication. EUV masks must maintain dimensional stability to sub-nanometer tolerances during heating from the 13.5nm light exposure — thermal expansion of even 1 ppm/°C would cause pattern overlay errors at advanced nodes. Corning's ULE glass achieves 0 ± 0.02 ppm/°C thermal expansion at 22°C by balancing titania and silica compositions. Without ULE, the EUV mask blanks that Hoya and AGC manufacture (and that TSMC and Intel use to print chips) would not maintain the necessary stability for sub-5nm patterning. Corning's Canton, New York facility is the sole US domestic source of EUV-grade ULE glass — receiving $32M in CHIPS Act funding (2024) to expand capacity. The advanced semiconductor supply chain's foundation includes a glass composition that a Corning, NY factory makes using decades-old proprietary process knowledge.
Corning Incorporated ↗Origin2023
Corning was founded in 1851 in Somerville, Massachusetts as the Brooklyn Flint Glass Works, moving to Corning, New York in 1868. The company made Thomas Edison's incandescent light bulb glass in 1879 — the first major technological partnership that would define Corning's model of innovation for 150 years. Key inventions: Pyrex borosilicate glass (1915, for cookware and lab equipment), low-loss optical fiber (1970, Bob Maurer — enabling the internet), LCD display glass fusion process (1962, enabling flat panel displays), Gorilla Glass (2007, enabling the smartphone era), cordierite catalytic converter substrates (1975, enabling the Clean Air Act), and ULE glass for EUV lithography (2000s, enabling sub-7nm chipmaking). Each breakthrough served a different industry, yet all emerged from the same fundamental material science of glass composition and forming.
Corning Incorporated ↗