Hangzhou Shalom EO Overview
Hangzhou Shalom EO is a privately owned Chinese supplier of photonic materials and precision optics. Its portfolio runs from single-crystal and semiconductor wafers and substrates (germanium, silicon, silicon carbide, gallium arsenide, gallium nitride, lithium tantalate, lithium niobate, sapphire and specialty oxide crystals) to finished infrared optics, laser crystals, ultrafast optics, optical filters and scintillators. In the semiconductor supply chain it is a niche substrate and wafer vendor rather than a bulk materials producer. It buys crystal from upstream growers or grows it in-house, then cuts, laps, polishes, inspects and packages wafers to customer specifications, including precisely off-cut germanium substrates for III-V epitaxy and space photovoltaics. Its model rests on breadth (thousands of stocked catalogue items), fast online fulfilment, custom fabrication and export-oriented sales, supported by a small Hangzhou commercial team and a production branch in Fujian. Germanium is its most strategically sensitive input because China dominates world refined germanium output and controls its export.
Company description. The company describes itself as an industry-leading manufacturer and supplier of optics, crystals and substrates. It says it has an engineering team and sales group with decades of expertise, and that it works with customers on product upgrades and development. Its stated mission is to deliver high-quality optics, laser components, crystals, wafers and substrates, and scintillators. Its stated vision is to be the most trusted and reliable partner in electro-optics.
What the company does. Shalom EO sells across six product families: optical components, laser crystals and components, infrared optics, optical filters, scintillators, and wafers and substrates. In the wafers and substrates family it supplies crystal, semiconductor, glass and ceramic wafers for optical, piezoelectric (SAW-grade), semiconductor and thin-film epitaxial uses. The epitaxial uses include GaN films, ferroelectric and magnetic films, and high-temperature superconductor films. Customers can specify conduction type, resistivity, doping concentration, orientation, dimensions and surface roughness.
Business model. The company has a hybrid stock-and-custom model:
Catalogue product sales: Description: Thousands of standard items held in stock and sold online with fast dispatch
Custom fabrication: Description: Wafers, substrates, optics and crystals made to customer drawings, orientations, coatings and tolerances
OEM component supply: Description: Optical components and lens assemblies for laser systems, thermal-imaging cameras and instruments
Services: Description: Metrology and test reports shipped with products; the company also lists maintenance/repair, metrology/calibration/testing, consulting and development services in industry directories
Warranty: Description: 12-month guarantee on most products, with free repair or replacement
All revenue comes from products and project-based custom work. The company has no subscription or licensing income. The product/service revenue split is not publicly disclosed.
Value chain position. Shalom EO sits in the middle of the value chain. Upstream are germanium, gallium and specialty-crystal producers and growers. Its main operations are crystal processing, which covers wafer cutting, lapping, polishing, coating and inspection, plus the assembly of optical sub-assemblies such as thermal-imaging lens modules. Downstream are laser, defence and security imaging, research, aerospace, telecom and semiconductor-epitaxy customers. For lithium tantalate, the company says it has facilities for crystal growing, wafer cutting, lapping, polishing and checking, so for some materials it is integrated back into crystal growth.
Customer types and end-markets.
Thermal imaging (security, automotive, industrial, defence): Products used: Ge, Si, ZnSe, ZnS windows and lenses; MWIR/LWIR lens modules; IR domes; Shalom EO relevance: Core: germanium optics are a flagship line
Laser systems (industrial, scientific, medical): Products used: Laser crystals, EO/AO crystals, waveplates, mirrors, CO2-laser ZnSe optics, 1535 nm eye-safe laser modules; Shalom EO relevance: Core
Ultrafast/femtosecond lasers: Products used: Low-GDD "femtoline" mirrors, ultrafast silver mirrors, thin lenses; Shalom EO relevance: Growing specialty
Semiconductor and epitaxy: Products used: Ge, Si, SiC, GaAs, GaN wafers; HTSC/ferroelectric film substrates; Shalom EO relevance: Niche substrate supply
Space and terrestrial photovoltaics: Products used: Off-cut Ge substrates for GaAs-based multi-junction cells; Shalom EO relevance: Niche
Telecom / RF: Products used: LiTaO3 and LiNbO3 SAW-grade and optical-grade wafers; LTOI/LNOI; Shalom EO relevance: Niche
Radiation detection (medical, security, high-energy physics): Products used: Scintillation crystals (e.g., CdWO4); Shalom EO relevance: Core legacy line
Research institutions and universities: Products used: All catalogue lines, small-lot custom work; Shalom EO relevance: Important customer group
Independent characterization. Shalom EO is best understood as a specialist trading-and-fabrication house of the kind common in the Hangzhou/Fujian photonics cluster. It is not a germanium refiner or a large-diameter wafer producer like Umicore, AXT or Yunnan Germanium. Its edge is breadth of catalogue, short-run flexibility and export reach. Its exposure to the germanium wafer market is real but small: it supplies germanium crystals, wafers and substrates off-cut toward the required directions and packed in Class 1000 cleanrooms and Class 100 bags, and germanium windows up to 300 mm diameter. Volumes are not publicly disclosed.
Strategy
Stated strategy themes. The company's own materials stress four points:
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Breadth and availability. It holds a large stock to accept both bulk and small orders on a streamlined production line, with thousands of standard items available for fast dispatch.
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Quality assurance. It runs an ISO 9001:2015 system, cleanroom inspection, Zygo interferometry, GDD measurement and measurement reports with every shipment.
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Cost-effectiveness. It aims for optimized quality at the best cost-effectiveness for customers.
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Co-development. It partners with customers on product upgrades and development as technology moves on.
Initiatives in the last 24 months.
Ultrafast / femtosecond optics push: Timing: 2025; Description: Femtosecond and ultrafast pulsed-laser-grade optics given prominence at the Hangzhou International Optoelectronic Expo 2025
International trade-show programme: Timing: 2025; Description: Laser World of Photonics Munich 2025; Optatec Frankfurt exhibitor listing
Factory transparency / marketing video: Timing: 2025; Description: "Inside Shalom EO" video showing manufacturing, engineering and quality inspection
Expanded wafer and substrate catalogue: Timing: Ongoing; Description: A–Z wafer catalogue adds LTOI, LNOI, quartz-on-Si, BeO ceramics and SGGG
The company has published no medium-term financial targets, guidance, cost programme or formal ESG commitment.
Products & Services
Wafers and Substrates (semiconductor-relevant)
| Product | Description and key specifications | Target customer |
|---|---|---|
| Germanium (Ge) crystals, wafers and substrates for film growth | Precisely off-cut toward required directions; packed in a Class 1000 cleanroom and Class 100 bags; used for epitaxial growth and layer transfer of III-V compounds because thermal expansion and lattice constant closely match GaAs; substrates for GaAs solar cells | Epitaxy houses, space-PV cell makers, research labs |
| Silicon (Si) wafers | For integrated circuits and microchips; conduction type, resistivity and doping customizable | Device prototyping, research |
| Silicon carbide (SiC) crystals and wafers | Semiconductor substrate | Power and RF device research |
| Gallium arsenide (GaAs) crystals and wafers | Semiconductor substrate | Optoelectronics, RF |
| Gallium nitride (GaN) substrates | Semiconductor substrate | LED, power, RF research |
| Sapphire (Al2O3) crystals and wafers | Crystal substrate; also used for GaN thin-film growth | LED, epitaxy |
| LiTaO3 (LT) optical-grade wafers | Z-cut ±0.2°; diameter 76.2 mm ±0.3 mm; primary flat 22 mm ±2 mm; thickness 500 μm or 1000 μm ±5 μm; double-side polished; S/D 20/10; TTV ≤10 μm; warp ≤50 μm; Curie temperature 605 °C ±0.7 °C; in-house growth, cutting, lapping, polishing and inspection | QPM SHG/OPO, pyroelectric IR detectors, fibre-optic communications |
| SAW-grade piezoelectric crystals and wafers (LT, LN) | Piezoelectric substrates | RF filter makers |
| LTOI, LNOI, quartz-on-Si | Bonded thin films, 5–50 μm | Integrated photonics, RF |
| HTSC and ferroelectric/magnetic film substrates | LaAlO3, SrTiO3, MgAl2O4, SGGG crystals | Thin-film research |
| Glass wafers | SEMI-standard sizes: Corning Pyrex, Corning HPFS 7980/7979/7978, Eagle XG, Chinese JGS1, SCHOTT glasses | MEMS, wafer-level optics |
| Ceramic substrates | Beryllium oxide (BeO), metallized BeO, silicon carbide ceramics, alumina | Thermal management, packaging |
Infrared Optics
| Product | Description and key specifications | Target customer |
|---|---|---|
| Germanium windows | Stock and custom; up to 300 mm diameter; 2,000–16,000 nm range; coatings: DLC, AR@3–5 μm, AR@8–12 μm, BBAR@3–12 μm; e.g., part 320-022, D101.6 × 1 mm with AR/DLC coating; refractive index ~4.0 at 11 μm; becomes opaque above ~90 °C | Thermal-camera makers, CO2/IR systems |
| Germanium lenses | 2–16 μm imaging; LWIR (8–12 μm) and MWIR (3–5 μm) | Thermal imaging OEMs |
| Silicon, ZnSe, ZnS, CaF2, BaF2 windows and lenses | IR window and lens materials | IR systems |
| ZnSe focusing lenses for CO2 lasers | Off-the-shelf; CVD ZnSe grown in the United States; AR-coated, high transmittance | Laser cutting/marking OEMs |
| IR domes | Protective IR domes | Defence, security |
| MWIR/LWIR lens modules | Athermalized, fish-eye, single-FOV designs for cooled and uncooled cameras | Thermal camera integrators |
Laser Crystals and Components
| Product | Description | Target customer |
|---|---|---|
| Electro-optic crystals for Pockels cells and modulators | Polished, AR-coated DKDP, BBO, LiNbO3, MgO:LiNbO3 with Cr-Au electrodes | Q-switch and modulator makers |
| TeO2 acousto-optic crystals | Supplied as ingots/boules or finished elements | AO modulator makers |
| Nonlinear and frequency-doubling crystals | Standard catalogue | Laser OEMs |
| Waveplates | Air-spaced zero-order waveplates (two crossed quartz plates); achromatic half- and quarter-wave plates in quartz and MgF2 | Laser and instrument makers |
| Femtoline ultrafast optics | Low-GDD mirrors with broad bandwidth; ultrafast-enhanced silver mirrors; ultrafast thin plano-convex/plano-concave lenses; GDD reports from an UltraFast Innovations GOBI white-light interferometer | Ultrafast laser builders |
| Eye-safe 1535 nm laser modules | For rangefinders, lidar and medical treatment | Rangefinder/lidar integrators |
Optical Components
| Product | Description | Target customer |
|---|---|---|
| Aspheric lenses | Plano-convex/concave, biconvex/biconcave, meniscus, ball/half-ball | Imaging, laser coupling |
| Sapphire lenses and windows | Plano-convex, plano-concave, double-convex, meniscus, ball/half-ball lenses; circular/rectangular/custom windows | Harsh-environment optics |
| Ball and half-ball lenses | Fibre coupling, endoscopy, barcode scanning, sensors | Fibre and medical OEMs |
| Super-polished lenses, substrates and mirrors | Proprietary refinement of classical super-polishing; surface roughness below 1 Å | High-power lasers, metrology |
| Double-surface-polished windows/substrates | Company-developed double-surface polishing method | Precision optics |
| Beamsplitter cubes | High-power polarizing, polarizing and non-polarizing | Laser systems |
| Mirrors and mirror blanks, polarizers, prisms | Catalogue lines | General photonics |
Optical Filters
| Product | Description |
|---|---|
| Colored-glass filters | Band-pass, long-pass, short-pass; Chinese colored glass equivalent to Schott or Hoya grades |
| Neutral-density filters | Including UV-range stepped ND filters on fused silica |
| Dielectric interference filters | Catalogue and custom |
Scintillators
| Product | Description |
|---|---|
| Scintillation crystals | For gamma-ray and X-ray detection; the company has published technical material on CdWO4 for double-beta-decay experiments |
Pricing is published per item in the online store for stocked products. Custom work is quoted to order. Launch years for most lines are not publicly disclosed.
Financial Narrative
Hangzhou Shalom EO is a privately held company and does not publish financial statements. Revenue, gross profit, operating income, EBITDA, net income, balance-sheet items, cash flows and the derived ratios (ROE, ROA, ROIC, liquidity, leverage, coverage, asset turnover, cash conversion cycle) are not publicly disclosed for any fiscal year. The company pays no public dividends and has no per-share data.
Qualitative financial characterization. A 10-person commercial headcount in Hangzhou plus a Fujian production branch points to a small enterprise. Its economics are probably driven by three things:
Gross margin mix: Custom super-polished, ultrafast and coated IR optics typically carry higher margins than commodity wafers, which are resold or lightly processed.
Input-cost volatility: Germanium price swings pass directly into Ge window, lens and wafer pricing. China's 2023 licensing regime and the December 2024 US ban hit export volumes and ex-China prices.
Working-capital intensity: A stock-based model with "thousands" of catalogue items ties up inventory, which supports fast delivery at the cost of cash conversion.
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View Subscription PlansFinancial Detail
Product Families
| Product family | Contents | Main applications |
|---|---|---|
Optical Components | Lenses (spherical, aspheric, ball/half-ball, sapphire), windows, mirrors and mirror blanks, prisms, polarizers, beamsplitter cubes, waveplates, super-polished optics | Lasers, instruments, imaging |
Laser Crystals and Components | Laser gain crystals, nonlinear crystals, EO crystals for Pockels cells (DKDP, BBO, LiNbO3, MgO:LiNbO3), AO crystals (TeO2), ultrafast optics, 1535 nm laser modules | Laser OEMs, research |
Infrared Optics | Ge, Si, ZnSe, ZnS, CaF2, BaF2 windows, lenses and domes; MWIR/LWIR thermal-imaging lens modules | Thermal imaging, CO2 lasers |
Optical Filters | Colored-glass band-pass, long-pass and short-pass filters; neutral-density filters; dielectric interference filters | Instruments, imaging |
Scintillators | Scintillation crystals for gamma-ray and X-ray detection (e.g., CdWO4) | Medical, security, physics |
Wafers and Substrates | Crystal, semiconductor (Si, SiC, GaAs, GaN, Ge), glass and ceramic wafers; SAW, HTSC and epitaxial film substrates; LTOI/LNOI/quartz-on-Si | Semiconductors, epitaxy, PV, RF |
Region Overview
| Region | Evidence of market activity | Likely trajectory drivers |
|---|---|---|
China (domestic) | Hangzhou expo participation; Chinese-language site | Domestic thermal-imaging and laser demand; unaffected by export licensing |
Europe | Repeated trade-show presence in Munich and Frankfurt | Laser/ultrafast optics demand; germanium items need Chinese export licences |
Russia/CIS | Dedicated Russian-language website | IR optics and crystal demand; sanctions-compliance considerations for dual-use goods |
Israel / Middle East | OASIS 7 exhibition | Electro-optics and defence-adjacent demand |
North America | Listings in US directories (Laser Focus World, GlobalSpec, Photonics.com) | Germanium-containing items were banned from December 2024 to November 2025 and remain licensed; non-germanium optics unaffected |
Analyst Conclusions
Management guidance. None publicly disclosed. Consensus growth expectations. None (no analyst coverage).
Bull case
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The breadth of the product range and its focus on custom work let the company capture fast-growing niches (ultrafast optics, LTOI/LNOI, space-PV Ge substrates) without heavy capital spending.
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If China extends the suspension past 27 November 2026, licensed germanium exports to US civilian buyers continue and help recover lost sales.
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New domestic germanium capacity (Sihuan Shengtun, Guizhou Dingshengxin) could lower input costs and improve margins on Ge windows and wafers.
Bear case
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If the US ban is reinstated after 27 November 2026, germanium sales to US customers stop again.
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Western buyers building non-Chinese germanium supply chains (US strategic reserve, India–US pact) may permanently shrink the export market for Chinese Ge optics.
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A 10-person commercial team and a single factory leave little scale, few barriers to entry and high key-person risk.
Key catalysts and monitorables (next 12 months):
Expiry of China's suspension of the US germanium ban: Timing: 27 November 2026; What to watch: Extension, lapse or reinstatement
China dual-use export licence approval pace: Timing: Ongoing; What to watch: Lead times for germanium exports
Domestic germanium supply additions: Timing: 2026–2027; What to watch: GeO2 and refined Ge price trends
Trade-show participation (Munich, Frankfurt, Hangzhou): Timing: 2027; What to watch: New product launches, especially ultrafast and integrated-photonics substrates
China's export-control entity-list changes: Timing: Ongoing; What to watch: Counterparty restrictions affecting US and Japanese customers
Analyst verdict. Hangzhou Shalom EO is a small, founder-led, export-oriented photonics supplier. Its relevance to the germanium wafer market comes from processing and customization, not raw-material control. Its strengths are breadth, flexibility and credible polishing and metrology for a company its size. Its offering, from off-cut germanium substrates and LiTaO3 wafers to 300 mm germanium windows and sub-ångström super-polished optics, fits research labs, laser OEMs and thermal-imaging integrators that need small to medium lots quickly.
Its exposure to the semiconductor supply chain is narrow, though. In Ge, GaAs and SiC wafers it acts mainly as a specialty processor and reseller next to integrated giants such as Umicore, AXT and Yunnan Germanium, which control refining, crystal growth and large-diameter wafering. It competes for low-volume, high-mix orders, not fab-scale supply.
The dominant external variable is Chinese germanium export policy. Germanium has needed an export licence since August 2023, and US civilian sales are possible only under a suspension that ends on 27 November 2026. That makes the company's germanium lines a policy-dependent business. Any reinstatement of the US ban would hit its germanium optics and wafer sales to American customers immediately, while non-germanium lines (laser crystals, ultrafast optics, filters, scintillators, LiTaO3/LiNbO3 wafers) would be largely unaffected.
The company has no published financial history, patents, partnerships or scale indicators, so its competitive durability is hard to judge. The most sensible reading is a resilient niche operator whose diversified catalogue cushions germanium-specific shocks, but whose small scale limits any move into mainstream semiconductor materials. Its positives would be greater technical differentiation in ultrafast and integrated-photonics substrates and a stable licensing regime. Its main negatives would be a renewed US ban and faster Western moves away from Chinese germanium.
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View Subscription PlansExecutive Leadership
Executive Leadership Team
| Name | Title | Background | Tenure |
|---|---|---|---|
James Tang | Founder and General Manager | More than 25 years as an optics engineer and optics sales manager before and during the company's life | Since founding (2010–2011) |
Joseph Tang | Sales Manager | Leads sales | — |
“—” = not publicly disclosed.
Competitive Landscape
Key Competitors
| Competitor | HQ | Listing | Overlap with Shalom EO | Relative positioning |
|---|---|---|---|---|
Umicore | Belgium | Euronext Brussels | Ge substrates for space PV, Ge optics blanks | Global leader in Ge substrates; far larger and vertically integrated in refining |
AXT, Inc. (incl. Tongmei) | USA / China | Nasdaq | Ge, GaAs, InP wafers | Large-volume compound and Ge wafer maker; production in China |
Yunnan Lincang Xinyuan Germanium Industry | China | Shenzhen | Ge crystals, wafers, IR optics | Vertically integrated from mine to wafer |
Yunnan Chihong Zinc & Germanium | China | Shanghai | Germanium raw materials | Upstream supplier and competitor |
5N Plus | Canada | TSX | Ge substrates, semiconductor materials | Space-PV substrate specialist |
Vital Materials | China | Private | Ge, rare metals, IR materials | Larger vertically integrated specialty-materials group |
PAM-XIAMEN | China | Private | Ge, GaAs, SiC, GaN wafers and substrates | Close peer business model (wafer trading and processing) |
Stanford Advanced Materials | USA | Private | Ge and specialty wafers | Catalogue distributor |
Jenoptik (Photonic Sense) | Germany | Frankfurt (via parent) | Ge IR optics | Premium European IR optics |
PPM Pure Metals | Germany | Private | Ge materials | Upstream high-purity metals |
Crystran, Edmund Optics, Thorlabs | UK / USA | Private | Catalogue optics, IR materials, crystals | Global catalogue competitors in optics |
CASTECH, Dayoptics, Union Optic | China (Fujian) | CASTECH listed in Shenzhen | Nonlinear/laser crystals, precision optics | Fujian cluster peers with larger scale |
Recent Developments
The company has announced no contract wins, leadership changes, litigation, layoffs or guidance revisions.
