Freiberger Compound Materials Overview
Freiberger Compound Materials is one of the world's three dominant producers of gallium arsenide (GaAs) substrate wafers, the starting material for the radio-frequency power amplifiers in most of the world's smartphones and for the red and infrared LEDs, lasers and VCSELs used in optoelectronics. Its crystal-growth roots go back to 1957 in East Germany. Wacker's GaAs technology was transferred to Freiberg in 1990, and the Federmann family's Israeli holding company has owned FCM since 1995. The company grows crystals mainly by the Vertical Gradient Freeze (VGF) method and makes wafers up to 6 inches, and it produced the industry's first 8-inch semi-insulating VGF GaAs wafer in 2002. With Sumitomo Electric and AXT it supplies most of the world's GaAs substrates. It is the largest single industrial buyer of gallium, at about 10% of world output. Since 2022 it has added indium phosphide (InP) for AI-era optical interconnects and gallium nitride (GaN) substrates. In 2024 it bought PPM Pure Metals' high-purity arsenic business, integrating backward into a critical raw material.
What the company does. FCM makes single-crystal III-V compound semiconductor substrates, which are polished wafers that customers use as the base for epitaxial growth (MOCVD and MBE) and device fabrication. The company describes itself as a leading global maker of compound semiconductor substrates for microelectronics and optoelectronics, with a reputation for extremely flat, ultra-clean wafers. Its current material set is GaAs, InP and GaN. The production chain runs in-house in four stages: synthesis of the polycrystalline compound from the elements, crystal growth, mechanical wafering (wire sawing, edge grinding, lapping), and polishing and cleaning to an "epi-ready" surface. The company says 87 measured characteristics specify each product.
Business model and revenue model. FCM is almost entirely a product business. It sells physical wafers under specification agreements and supply contracts to epitaxy houses, integrated device manufacturers (IDMs) and foundries. It discloses no meaningful service, subscription or licensing revenue. Sales are priced per wafer, depending on diameter, doping, electrical properties and surface specification. Gallium metal is its largest single cost item, so contract pricing is exposed to the gallium price. Publicly funded R&D projects bring in some grant income, but this is not a revenue line.
Value-chain position.
Raw materials (Ga, As, In, P): Main participants: Chinese gallium refiners (more than 90% of supply), arsenic refiners, indium producers; FCM role: Buyer of gallium and indium; producer of high-purity arsenic through PPM High Purity Metals since 2024
Polycrystal synthesis: Main participants: Substrate makers (captive); FCM role: In-house
Single-crystal growth (VGF, formerly LEC; HVPE for GaN): Main participants: Sumitomo Electric, FCM, AXT/Tongmei, JX Advanced Metals and others; FCM role: Core competence
Wafering, polishing, cleaning: Main participants: Substrate makers; FCM role: In-house
Epitaxy: Main participants: IQE, IntelliEPI, VPEC, LandMark, captive IDM epi; FCM role: Customer segment
Device fabrication: Main participants: Qorvo, Skyworks, Broadcom (Avago), WIN Semiconductors, Coherent, ams OSRAM, Lumentum and others; FCM role: End customers
End products: Main participants: Smartphones, Wi-Fi, base stations, data-centre transceivers, LiDAR, LEDs; FCM role: End markets
Customer types. FCM serves (i) epitaxial wafer foundries, (ii) GaAs RF IDMs and foundries making heterojunction bipolar transistors (HBTs) and pHEMTs for power amplifiers and switches, (iii) optoelectronic device makers producing LEDs, laser diodes, VCSELs and photodetectors, and (iv) research institutes and universities. FCM does not name its customers. In July 2023 the CEO said the world's leading power-amplifier makers are based in the United States, which points to US RF IDMs as a core customer group.
End markets.
Mobile and wireless RF: Material: Semi-insulating GaAs; Device types: HBT and pHEMT power amplifiers, switches, LNAs; Demand driver: Smartphone units, RF content per phone, Wi-Fi 6/7
Optoelectronics and sensing: Material: Semi-conducting GaAs; Device types: Red/IR LEDs, laser diodes, VCSELs, sensors; Demand driver: 3D sensing, LiDAR, displays, industrial lasers
Optical communications and AI data centres: Material: InP; Device types: DFB/EML lasers, photodiodes, PICs; Demand driver: 800G/1.6T transceivers, AI cluster interconnect
High-frequency electronics, defence and space: Material: Semi-insulating InP, GaAs; Device types: HEMTs, HBTs, mmWave ICs; Demand driver: Radar, satellite links, sub-THz research
Power and optoelectronics: Material: GaN; Device types: Laser diodes, high-power devices; Demand driver: Blue/green lasers, vertical GaN power devices
Automotive: Material: GaAs, InP; Device types: Sensors, LiDAR emitters, radar; Demand driver: ADAS, in-cabin sensing
Company's own characterisation. FCM calls itself a technology leader in III-V substrate wafers made from GaAs, InP and GaN, and a world-leading supplier with more than 50 years of experience in semiconductor materials.
Independent characterisation. FCM is a single-site, deeply vertically integrated specialist materials manufacturer. Its market position is outsized relative to its size: revenue is roughly EUR 70–100 million, yet it holds a majority share of the GaAs wafers used in smartphone power amplifiers. Its competitive moat rests on process know-how in large-diameter, low-defect VGF growth and on more than 25 years of qualification with demanding RF customers, not on scale. Strategically, it is now Europe's main non-Chinese source of compound-semiconductor substrates. That status has grown in political and commercial value since China began licensing gallium exports in August 2023. The company is broadening its portfolio: it is moving from a mature GaAs RF franchise, where GaN-on-SiC and silicon technologies are encroaching, toward InP, which is driven by AI data-centre optics and grows faster.
Strategy
FCM publishes no annual report or investor-day materials. Its strategy can be seen in public statements, investments and filings:
Strategic themes:
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Defend GaAs leadership through technology. The company is pushing larger diameters (6-inch standard, 8-inch capability), lower defect densities and better surface quality. Patents granted and published in 2023–2025 cover III-V substrate production methods, surface-oxide homogeneity, and stress-free, dislocation-free AIII-BV crystals.
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Diversify into InP. Fab IV was acquired in 2020, InP production started in 2022–2023, and patents on improved doped InP crystals were published in 2025. The goal is to address the fast-growing AI data-centre optical interconnect market, which is shifting to 800G and 1.6T transceivers.
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Commercialise GaN substrates. HVPE bulk GaN development with Fraunhofer has been under way for more than a decade.
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Secure raw materials. Backward integration into high-purity arsenic (PPM, 2024), strategic gallium inventories, and gallium recycling from process wastewater (HZDR pilot, 2025) reduce dependence on Chinese gallium.
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Expand capacity. EUR 30 million was invested in each of 2022 and 2023, following EUR 15 million in 2015, more than EUR 200 million cumulatively.
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Sustainability and circularity. Activities include the cogeneration plant, ISO 14001 and ISO 50001 certification, the gallium-recovery pilot, and participation in the EU CLOSER consortium on recycling critical materials from semiconductor waste streams.
Initiatives in the last 24 months:
Acquisition of PPM arsenic business: Date: Aug 2024; Description: Integration of high-purity arsenic production; Target / scale: Not publicly disclosed
CLOSER consortium: Date: Jun 2025; Description: EU circular-economy project analysing FCM's wafer-production by-products for recovery of critical materials; Target / scale: Research phase
ERDF/JTF technology projects: Date: Jun 2025; May 2026; Sep 2026; Description: Saxon technology-funding grants; Target / scale: EUR 344,734; EUR 175,000; EUR 466,360
Gallium-recovery pilot plant (SideroGaIn, HZDR): Date: Sep 2025; Description: Siderophore-based biosorption to recover gallium from GaAs wastewater; Target / scale: 1,000–2,000 litres per day; German high-tech sector recycling potential estimated at 2–5 t of Ga per year
InP crystal and process patents: Date: 2025; Description: Doped InP and stress-free crystal patents; Target / scale: IP base for InP scale-up
Medium-term financial targets: not publicly disclosed.
Products & Services
Gallium arsenide (GaAs)
| Product | Description | Key capabilities | Target customer | Launch / latest | Pricing |
|---|---|---|---|---|---|
| SI GaAs VGF wafers, 4-inch | Semi-insulating GaAs from vertical gradient freeze | Low dislocation density, high resistivity uniformity, epi-ready surface | RF epi houses and IDMs | VGF 4-inch development from 1999; volume from 2005 | Per wafer, contract; not publicly disclosed |
| SI GaAs VGF wafers, 6-inch | Mainstream RF substrate diameter | Industry-standard 150 mm; extreme flatness; ultra-clean surface | HBT and pHEMT PA makers; smartphone RF supply chain | First 6-inch VGF crystal 2000; current flagship | — |
| SI GaAs, 8-inch (development) | Large-diameter VGF GaAs | First 8-inch SI VGF wafer in the industry (2002) | Future high-volume RF and photonic lines | Demonstrated 2002; commercial status not publicly disclosed | — |
| SC GaAs wafers (n-type) | Si-doped conductive GaAs | Low etch-pit density for laser and VCSEL yield | LED, laser diode and VCSEL makers | Established product | — |
| SC GaAs wafers (p-type) | Zn-doped conductive GaAs | For specific optoelectronic structures | Optoelectronic device makers | Established product | — |
| GaAs with engineered surface oxide | Wafers with a controlled, homogeneous surface oxide layer | Better epitaxial nucleation uniformity (patent granted January 2025) | Epi houses | 2,025 | — |
| Legacy LEC GaAs | Liquid-encapsulated Czochralski crystals | 6-inch mass production from 1998; first 8-inch LEC in 2000 | RF customers | Largely replaced by VGF | Not applicable |
Indium phosphide (InP)
| Product | Description | Key capabilities | Target customer | Launch / latest | Pricing |
|---|---|---|---|---|---|
| Doped InP VGF wafers (S-, Sn- or Zn-doped) | Conductive InP for lasers and photodiodes | Patented "Improved Doped InP Crystals" process (published February and September 2025) | Datacom and telecom laser makers (DFB, EML), PIC foundries | First production 2022–2023 in Fab IV | — |
| Semi-insulating InP (Fe-doped) | High-resistivity InP | For HEMTs, HBTs, mmWave ICs | Defence, space and RF research | Production since 2022–2023 | — |
| Larger-diameter InP (6-inch) | Next-generation diameter | Industry qualification expected around 2027–2029 according to market reports | High-volume photonics | Development | — |
Gallium nitride (GaN)
| Product | Description | Key capabilities | Target customer | Launch / latest | Pricing |
|---|---|---|---|---|---|
| Free-standing GaN substrates (HVPE) | Bulk GaN from hydride vapour-phase epitaxy | Native substrate for low-defect GaN devices; developed with Fraunhofer THM and IISB | Blue/green laser makers, vertical GaN power device developers | R&D since before 2011; listed among current products since 2022 | — |
Materials and services
| Offering | Description | Customer | Notes |
|---|---|---|---|
| High-purity arsenic (PPM High Purity Metals) | 6N/7N arsenic for III-V synthesis | Captive use plus external compound-semiconductor customers | Acquired 2024 |
| Technical service and application engineering | Wafer specification tuning and support during epi qualification | All substrate customers | Bundled with product sales |
| Custom specifications | Non-standard orientations, doping and thickness | Research institutes, defence | Price on request |
Financial Narrative
FCM is privately owned and files condensed HGB statements with the German company register. Recent filings: FY2021 (filed 30 June 2022), FY2022 (27 October 2023), FY2023 (3 January 2025) and FY2024 (22 January 2026, with consolidated statements on 10 February 2026). These statutory figures have not been reported in the press, and the company publishes no annual report, investor presentation or earnings release. Gross profit, operating income, EBITDA, EPS, balance-sheet detail, cash flow and return ratios are not publicly disclosed. There is no per-share data because the company is not listed.
Revenue
Management has given revenue indications on two occasions. In connection with the April 2022 state visit, the company was cited with annual revenue of about EUR 100 million. In July 2023, Reuters reported annual sales of EUR 70–80 million (about USD 77–88 million) on the basis of an interview with CEO Michael Harz. The two figures fit with the cyclical drop in RF handset demand during 2022–2023, but neither is tied explicitly to a fiscal year. A third-party market-research publisher estimates 2025 revenue at about USD 120 million; the company has not confirmed this.
Early history (Saxon State Government, July 1997):
The FY1997 figure was the company's target at the time.
Investment (capex) disclosures
The company says it has invested more than EUR 200 million in the Freiberg fab over the last 25 years, including 1,700 m² of cleanroom and extensive analysis and metrology equipment. The initial 1995–1997 construction cost DEM 65 million.
Cost structure and drivers
Raw materials: Gallium is FCM's largest single cost. The company buys several dozen tonnes a year, about 10% of global primary gallium output, and almost all of it from Chinese refiners. It held several months of inventory in mid-2023 in anticipation of trade disruption.
Energy: Crystal growth and cleanroom operation are energy-intensive. The on-site cogeneration plant covers about half of the fab's electricity needs at more than 90% overall efficiency, which reduced exposure to the 2022–2023 German power-price spike.
Labour: About 350 employees at a single German site. Recent job advertisements quote hourly rates from EUR 18.50 (maintenance) and EUR 20 (production).
Grants: Repeated EU, federal and Saxon R&D grants since 2005 partly offset development spending. They include EUR 13.2 million (October 2022) and ERDF/JTF technology funding (EUR 344,734 in June 2025; EUR 175,000 in May 2026; EUR 466,360 in September 2026).
Commentary
The revenue path suggests a peak around 2021–2022, when 5G handset launches and supply-chain restocking pushed wafer demand up. A correction followed in 2023 as handset volumes fell and RF customers ran down inventory. The same pattern shows in listed peers: IQE's wireless revenue fell 40% in FY2025, and AXT's revenue fell 11% in FY2025. The mid-2023 stockpiling triggered by China's gallium licensing likely pulled some demand forward into the second half of 2023. The main upside driver for 2025–2026 is InP. Listed peers report sharply higher InP demand from AI data-centre optics: AXT plans to double InP capacity in 2026, and IQE raised its FY2026 growth guidance to more than 30%. FCM's InP line in Fab IV gives it exposure to this cycle, but the scale of its InP revenue is not publicly disclosed. Margin pressure comes from gallium price inflation, as Chinese export restrictions have widened the gap between Chinese domestic and export prices, and from German energy and labour costs. Pricing power is supported by the concentrated supply base.
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View Subscription PlansFinancial Detail
Business Units
| Unit | Head | Scope |
|---|---|---|
CEO office | Dr. Michael Harz | Controlling and finance, human resources, manufacturing, production logistics, sales and application, supply chain |
CTO office | Dr. Stefan Eichler | GaAs technology, technical service, project management and IP, GaN development, InP crystal growth, quality management, IT, product management |
Product Lines
| Product line | Contents | Products | Status |
|---|---|---|---|
GaAs — semi-insulating (SI) | Undoped or carbon-controlled SI GaAs grown by VGF | Epi-ready wafers for HBT and pHEMT RF ICs | Core franchise and majority of revenue (company does not disclose the split) |
GaAs — semi-conducting (SC) | Si- or Zn-doped GaAs | Wafers for LEDs, laser diodes, VCSELs, sensors | Established |
InP | VGF-grown doped and semi-insulating InP | Wafers for lasers, photodetectors, PICs and HEMTs | Production since 2022–2023 (Fab IV) |
GaN | HVPE-grown free-standing GaN | Substrates for laser diodes and power devices | Development to early commercial |
High-purity arsenic | 6N–7N arsenic for synthesis and external sale | PPM High Purity Metals GmbH (since 2024) | Integrated subsidiary |
Group Entities
| Entity | Country | Ownership | Function |
|---|---|---|---|
Federmann Enterprises Ltd. | Israel | Ultimate parent | Family holding company |
Freiberger Compound Materials GmbH | Germany | Principal operating company | Substrate manufacturing, R&D, sales |
Freiberger Compound Materials U.S.A. Inc. | United States | Subsidiary of FCM | Sales and customer support |
Freiberger Compound Materials Taiwan Ltd. | Taiwan | Subsidiary of FCM | Sales and customer support for Asian epi and foundry customers |
PPM High Purity Metals GmbH | Germany (Osterwieck) | 100% FCM | High-purity arsenic production and sales |
PPM Real Estate GmbH | Germany | FCM | Holds the Osterwieck property |
Revenue indication
| Revenue indication | Date given | Figure | Basis |
|---|---|---|---|
Annual revenue, approximate | 2022 (state visit) | About EUR 100 million | Company statement reported by Silicon Saxony |
Annual sales | July 2023 | EUR 70–80 million | CEO interview, Reuters |
Annual revenue, external estimate | 2025 | About USD 120 million | Market-research estimate; unconfirmed by the company |
Financial Analysis
| Metric | FY1995 | FY1996 | FY1997 |
|---|---|---|---|
Revenue (DEM M) | 8.7 | 20 | 25 |
Key Financials
| Metric | FY2015 | FY2022 | FY2023 |
|---|---|---|---|
Announced site investment (EUR Mn) | 15 | 30 | 30 |
Operating Metrics (number)
| Metric | FY1995 | FY1997 | FY2025 |
|---|---|---|---|
Employees (number) | 81 | 120 | 350 |
Region Overview
| Region | Customer base | Evidence | Trend |
|---|---|---|---|
North America | US RF power-amplifier IDMs, defence and photonics customers | CEO statement that the leading PA makers are US-based; US sales subsidiary | Stable to growing; supply-security premium for non-Chinese wafers since 2023 |
Asia-Pacific (Taiwan, Japan, Korea, China) | Taiwanese GaAs foundries and epi houses, Asian optoelectronic makers | Taiwan subsidiary; 1997 disclosure of sales to the Far East | Largest volume region by industry structure; exposure to Chinese competitors' price pressure |
Europe (incl. Germany) | European RF, optoelectronic, defence and research customers | Silicon Saxony membership; EU projects | Growing strategic weight under the EU Chips Act and defence demand |
Analyst Conclusions
Management guidance: not publicly disclosed. Hiring and investment activity in 2025–2026 indicates expansion, not retrenchment.
Industry growth expectations: GaAs substrates at about 7% CAGR; InP substrates at about 11–13% CAGR. Listed peers guide to more than 30% growth in FY2026 (IQE), driven by InP.
Bull case
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Supply-security premium. FCM is one of only three scale GaAs substrate makers and the only major one producing in Europe. China's licensing regime and AXT's permit-driven revenue shortfall in 2025 push Western RF and photonics customers toward FCM, supporting volume and price.
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InP leverage to AI. Fab IV and the patented doped-InP process give FCM a foothold in a market that peers say is growing more than 30% in 2026. Even a modest gain in InP share would materially lift revenue from a EUR 70–100 million base.
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Raw-material integration. Arsenic in-house, multi-month gallium stocks and gallium recycling reduce exposure to the most critical supply risk and could become a cost advantage.
Bear case
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Gallium chokepoint. Almost all of FCM's largest input comes from China. A renewed ban or sustained licensing slowdown could halt production regardless of demand.
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GaAs RF maturity. Handset saturation, GaN substitution and inventory cycles (wireless revenue at IQE down 40% in FY2025) cap growth in FCM's core franchise.
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Capital disadvantage in InP. Sumitomo, Coherent and AXT (with a cash-rich balance sheet and a planned STAR Market listing for Tongmei) are investing heavily. FCM's single-site, family-funded model may not keep pace.
Key catalysts and monitorables (next 12 months)
Chinese gallium policy: Timing: Ongoing; the US-ban suspension runs to its stated end date; What to watch: Licence approval rates, export volumes, price spread
FY2025 statutory accounts filing: Timing: Expected 2026–2027; What to watch: Revenue, margin and inventory trends; PPM contribution
Disclosure of the July 2026 equity change: Timing: Any time; What to watch: New shareholder identity, strategic investor, funding of expansion
InP capacity and 6-inch qualification: Timing: 2026–2027; What to watch: Capacity announcements, customer wins
Gallium-recovery scale-up: Timing: 2026; What to watch: Move from pilot to industrial operation
EU Chips Act and Saxon funding: Timing: 2026–2027; What to watch: Larger grants for InP or GaAs expansion
Peer read-across (AXT, IQE, Sumitomo): Timing: Quarterly; What to watch: InP demand, GaAs RF recovery
Analyst verdict. Freiberger Compound Materials is a strategically important company relative to its size. With about 350 employees and revenue that management has put at EUR 70–100 million, it is a mid-sized German manufacturer. Within its niche, though, it is one of three companies supplying nearly all of the world's GaAs substrates. By its own account it has a majority share of the wafers inside smartphone power amplifiers, and its products are in most smartphones made. Few European companies hold that kind of position in the semiconductor value chain, and Chinese gallium export controls have raised its value.
The investment-style case hinges on two questions. The first is whether FCM can turn its GaAs know-how into a meaningful share of InP, the substrate behind AI data-centre optics. Fab IV, the 2022–2023 investment programme and a run of InP patents show the intent, but FCM is a challenger here against Sumitomo, JX, AXT and Coherent, all of which are spending heavily. The second is raw-material risk. FCM remains structurally dependent on Chinese gallium, and stockpiles, arsenic integration and recycling reduce that exposure without removing it.
FCM's long-term owner and its process leadership argue for resilience. Its single site, opaque finances and limited capital relative to listed rivals argue for caution. The July 2026 capital increase and amended articles are the most important item to watch: a new strategic or public investor could fund the InP scale-up that the market opportunity calls for. On balance, FCM looks like a durable, defensible GaAs franchise with real but not yet proven upside in InP, and its risk sits mainly in the supply of its key raw material rather than in demand for its wafers.
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View Subscription PlansExecutive Leadership
Executive Leadership Team
| Name | Title | Tenure | Prior roles | Education |
|---|---|---|---|---|
Dr. Michael Harz | Managing Director (Geschäftsführer), CEO | MD since 7 January 2020; Prokurist from December 2011 | Senior management at FCM in the 2010s | Doctorate (field not publicly disclosed) |
Dr. Stefan Eichler | CTO / Technical Director ("Chief Technology Engineer") | Prokura since 15 August 2007 | Long-serving FCM technologist; leads GaAs, InP and GaN development | Doctorate (field not publicly disclosed) |
Stefan Schumann | Authorised signatory (Prokurist) | Since 23 March 2020 | — | — |
Andreas Villak | Authorised signatory (Prokurist) | Since 28 February 2023 | — | — |
“—” = not publicly disclosed.
Major Shareholders
| Shareholder | Stake (%) | Type |
|---|---|---|
Federmann Enterprises Ltd. (Israel) | 87.5 | Family holding company |
Siemens AG (stake later passed to Infineon Technologies AG) | 12.5 | Strategic minority |
Total | 100.0 | — |
Competitive Landscape
Key Competitors
| Competitor | HQ | Segments | Positioning vs. FCM |
|---|---|---|---|
Sumitomo Electric Industries | Japan | GaAs (SI and SC), InP, GaN | Largest GaAs substrate supplier; also a major InP and GaN supplier; vertically integrated into devices |
AXT Inc. / Beijing Tongmei Xtal Technology | US / China | GaAs, InP, Ge | Lower-cost China-based VGF production; exposed to Chinese export permits; doubling InP capacity in 2026 |
JX Advanced Metals | Japan | InP, CdZnTe | Leading InP substrate supplier for telecom and datacom |
IQE plc (incl. Wafer Technology Ltd.) | UK | Epiwafers; GaAs and InP substrates (Wafer Technology) | Mainly an epi-wafer customer of substrate makers; competes in InP substrates through Wafer Technology |
Vital Materials | China | GaAs, InP, Ge | Fast-growing Chinese integrated materials group with domestic gallium access |
China Crystal Technologies | China | GaAs | Domestic Chinese GaAs substitution |
Yunnan Germanium | China | GaAs, InP, Ge | State-linked; domestic supply |
Xiamen Powerway Advanced Material (PAM-XIAMEN) | China | GaAs, InP, GaN, SiC | Broad-catalogue supplier, research and volume |
Coherent Corp. | US | Captive InP (and GaAs) | Vertically integrated; scaling 6-inch InP in Texas |
DOWA Electronics Materials | Japan | Compound-semiconductor materials | Niche substrate and epi supply |
Mitsubishi Chemical / Sumitomo Chemical (SCIOCS) / Kyma | Japan / US | Bulk GaN substrates | Competitors in GaN substrates |
Peer Comparison FY2024
| Company | Latest FY revenue | YoY growth | Margin indicator | Note |
|---|---|---|---|---|
Freiberger Compound Materials | About EUR 70–100 million (management indications, 2022–2023) | — | — | Private |
AXT Inc. (FY2025) | USD 88.3 million | -11.1% | GAAP gross margin 12.7% (FY2024: 24.0%) | Nasdaq: AXTI |
IQE plc (FY2025) | GBP 97.3 million | -17.6% | Adjusted EBITDA margin 3% | AIM: IQE; epi-focused |
“—” = not publicly disclosed.
