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Central Glass is a mid-sized Japanese fluorine-chemistry and glass group that has spent five years turning itself from a capital-heavy flat- and automotive-glass maker into what it calls a "Specialty Materials Company." Its main technical asset is integrated fluorine chemistry at the Ube complex. Fluorspar is converted into anhydrous hydrogen fluoride (HF), and the HF goes into ultra-high-purity semiconductor process gases, lithium-ion battery electrolytes, low-GWP HFO refrigerants and blowing agents, pharmaceutical intermediates and fertilizers. Since selling its US and European automotive glass operations in 2022, it has reported about ¥144 billion in annual sales. In FY2026, Electronic Materials was the highest-margin segment (15.2% operating margin, ¥26.2 billion sales). Energy Materials (electrolytes) is the main drag on earnings, and Glass is now mostly a domestic business that generates cash. Management's VISION 2030 targets ¥20 billion operating profit and ROE of at least 10%. The balance sheet is conservative, with a 62.5% equity ratio and net debt of about ¥7.8 billion, and the dividend floor is ¥170 per share. The shares trade below book value. --- ### What the company does Central Glass makes and sells fluorine-based specialty chemicals and glass products. Since FY2026 it has reported four segments plus "Other": Electronic Materials, Energy Materials, Life & Healthcare, and Glass. Its securities report for FY2026 describes the group as working in these four fields. Each is defined by its main products: high-purity gases for semiconductor processing; electrolytes for lithium-ion batteries; medical chemicals, material chemicals and fertilizers; and architectural glass, automotive glass and glass fiber. ### Company's own description In its 2025–2030 medium-term plan and its Integrated Report, the company describes itself as aiming to "become a Specialty Materials Company that contributes to a sustainable society" through original materials and technologies. It splits its portfolio into two groups: - **Specialty products**, which it plans to grow: etching and cleaning gases, SiC wafers and next-generation display materials (semiconductors and power semiconductors); electrolytes and next-generation battery materials (batteries); pharmaceutical products such as inhalation anaesthetics (life science); and low-GWP materials, controlled-release fertilizers, PFAS-free materials and high-value glass (living and environment). - **Essential products**, which it plans to make more profitable: HFOs and functional materials, glass fiber, architectural glass, automotive glass and fertilizers. ### Business and revenue model Nearly all revenue comes from selling manufactured products. There is no material service, subscription or licensing income. Pricing works differently in each business: **Electronic Materials:** Customers qualify each gas on their own fab lines, which keeps them with a supplier for years. Volumes follow wafer starts, especially at advanced logic and memory fabs. Since FY2026, prices have been raised to recover raw material costs (tungsten and fluorspar), and segment margin reached 28.5% in Q1 FY2027. **Energy Materials:** Electrolyte is sold under supply agreements with cell makers. Prices are usually linked to the cost of lithium hexafluorophosphate (LiPF6) and solvents, but pass-through lags, which hurt margins in FY2026 and Q1 FY2027. **Life & Healthcare:** This mixes contract and catalogue sales of pharmaceutical intermediates and active ingredients, sales of HFO blowing agents and solvents to polyurethane and precision-cleaning customers, and domestic fertilizer sales through agricultural channels. **Glass:** Float and processed architectural glass is sold through Central Glass Sales. Automotive glass is sold through Central Sanglass, a 65:35 joint venture with Saint-Gobain. Glass fiber is sold to industrial and automotive customers. Pricing follows energy and soda-ash costs, and a price increase takes effect on 1 December 2026. ### Value-chain position Central Glass is unusually backward-integrated for a Japanese specialty-gas supplier. It produces HF from fluorspar at Ube, where an HF plant has operated since 1974, and purifies it to semiconductor grade itself. In September 2026, METI certified a plan for a new anhydrous HF plant at Ube with a subsidy of up to ¥17.6 billion, which makes HF a nationally supported strategic material. Downstream, the company sells directly to semiconductor device makers (foundries and memory makers in Taiwan, Korea, Japan and China), battery cell makers in Asia, Europe and North America, pharmaceutical companies, and construction and automotive customers in Japan. ### Customer types and end-markets | End-market | Segment | Customer type | Demand driver | |---|---|---|---| | Semiconductors (logic, DRAM, NAND, power devices) | Electronic Materials | Wafer fabs, equipment makers | AI-driven advanced-node and high-capacity memory build-outs | | Electric vehicles and energy storage | Energy Materials | Lithium-ion cell makers (China, Korea, Japan, EU, North America) | EV adoption, ESS, IRA localisation | | Pharmaceuticals and medical | Life & Healthcare | Drug makers, CDMOs | Fluorinated API demand, inhalation anaesthetics | | Construction insulation and cleaning | Life & Healthcare | Urethane foam makers, precision-cleaning users | Low-GWP regulation (Kigali/F-gas phase-downs) | | Agriculture | Life & Healthcare | Japanese agricultural co-ops and distributors | Domestic crop demand, controlled-release fertilizer | | Housing and construction | Glass | Glass processors, builders | Japanese housing starts, energy-efficient glazing | | Automotive | Glass | Japanese OEMs, aftermarket | Japanese vehicle production | | Industrial composites and acoustics | Glass (fiber) | Resin compounders, auto acoustic-parts makers | Engineering plastics, vehicle noise insulation | **Semiconductors (logic, DRAM, NAND, power devices):** Segment: Electronic Materials; Customer type: Wafer fabs, equipment makers; Demand driver: AI-driven advanced-node and high-capacity memory build-outs **Electric vehicles and energy storage:** Segment: Energy Materials; Customer type: Lithium-ion cell makers (China, Korea, Japan, EU, North America); Demand driver: EV adoption, ESS, IRA localisation **Pharmaceuticals and medical:** Segment: Life & Healthcare; Customer type: Drug makers, CDMOs; Demand driver: Fluorinated API demand, inhalation anaesthetics **Construction insulation and cleaning:** Segment: Life & Healthcare; Customer type: Urethane foam makers, precision-cleaning users; Demand driver: Low-GWP regulation (Kigali/F-gas phase-downs) **Agriculture:** Segment: Life & Healthcare; Customer type: Japanese agricultural co-ops and distributors; Demand driver: Domestic crop demand, controlled-release fertilizer **Housing and construction:** Segment: Glass; Customer type: Glass processors, builders; Demand driver: Japanese housing starts, energy-efficient glazing **Automotive:** Segment: Glass; Customer type: Japanese OEMs, aftermarket; Demand driver: Japanese vehicle production **Industrial composites and acoustics:** Segment: Glass (fiber); Customer type: Resin compounders, auto acoustic-parts makers; Demand driver: Engineering plastics, vehicle noise insulation ### Independent characterisation Central Glass now works mainly as a fluorine-chemistry platform with a glass business attached. In FY2026 the three chemical segments made up about 55% of sales and nearly all of operating profit before the Energy Materials loss. Earnings depend increasingly on one niche: ultra-high-purity fluorinated gases for advanced semiconductor fabs. The company has real technical strengths there, including integration from fluorspar, cryogenic-etch-grade HF and a WF6 joint venture in China, but it is far smaller than the Korean and global industrial-gas majors. Electrolyte was meant to be the second growth leg. It has instead become a structural loss-maker under Chinese price competition, and how far it can recover is the biggest swing factor in the medium-term plan.