Where does Maxeon Solar Technologies source its components?
Singapore. Supply chain mapped to 36 inputs across 11 countries.
Uncertain. Maxeon Solar Technologies is not named on any of the 3 federal restricted-party lists screened for this record (DOD Section 1260H, BIS Entity List, OFAC SDN List), but its FEOC status is unresolved and depends on ownership or component-level analysis. Is Maxeon Solar Technologies a Foreign Entity of Concern?
Upstream sourcing exposure
17 in covered nations - 8 elevated, of 36 nodes.
Where inputs are mined and refined. Not a FEOC determination for the company -- see the federal list screening above.
Refining chokepoint
5 of 10 processing/refining steps in covered nations
Sourcing Concentration by Country
Sourcing risk across the graph
Where each input is mined or refined. Not a FEOC determination for the company.
Legend
Node Types
Sourcing risk
Relationships
Every mapped input in the Maxeon Solar Technologies supply chain
36 nodes, grouped by supply-chain tier. Sourcing risk describes where an input is mined or refined; it is not a FEOC determination for Maxeon Solar Technologies.
Producer (1)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Maxeon Solar TechnologiesHQ Singapore; IBC cell fabs in Philippines & Malaysia; module assembly in Mexico & France | Singapore | Elevated sourcing risk | IBC/back-contact solar modules. Polysilicon explicitly non-China (Germany/Korea/US closed list), but downstream metals (Al frame, Cu, Ag, glass, encapsulant) run through China-dominated midstream -> overall review. |
Component (12)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| IBC Solar Cell (crystalline silicon)Maxeon 3 cell fab, Philippines (~560MW); also Malaysia | Philippines | No known risk factor | Interdigitated back-contact cell built on a patented copper foundation; wafers made exclusively from non-China polysilicon. |
| Module Lamination & AssemblyMexicali/Mexico module plants; France | Mexico | Elevated sourcing risk | Cells laminated between glass/encapsulant, framed, and junction-boxed into finished panels. |
| Monocrystalline Silicon WaferThird-party ingot/wafer partners (TZS and others outside China) | Malaysia | Elevated sourcing risk | Maxeon does not ingot/wafer itself; specifies non-China polysilicon feedstock. Wafering partners partly in Asia -> review. |
| High-Purity Quartz CrucibleConsumable for CZ ingot pulling | United States | No known risk factor | Fused-quartz crucible for Czochralski ingot growth; ~70-90% of world HPQ from Spruce Pine, NC. |
| Copper Foundation / Plated Cu ContactsElectroplated onto rear of IBC cell | Philippines | Elevated sourcing risk | Maxeon's signature thick plated-copper metallization replaces silver ribbons. Copper metal midstream is China-heavy. |
| Silver Metallization PasteRear-contact paste (reduced vs standard cells due to Cu plating) | China | Covered nation | Silver paste for screen-printed contacts; paste conversion and silver refining concentrated in China. |
| Anodized Aluminum FrameExtruded/anodized Al profile | China | Covered nation | Rigid module frame; aluminum extrusion and smelting China-dominated. |
| Low-iron Tempered Solar GlassRolled 3.2mm patterned coverglass | China | Covered nation | China ~74% of solar-glass volume (Xinyi, Flat Glass Group, CSG) -> flagged. |
| EVA / POE Encapsulant FilmExtruded encapsulant film | China | Covered nation | Hangzhou First >50% share; encapsulant film supply China-dominated -> flagged. |
| Polymer Backsheet (fluoropolymer)Fluoropolymer-coated backsheet | China | Covered nation | Jolywood and other China producers lead fluoropolymer backsheets -> flagged. |
| Junction Box + Bypass DiodesRear-mounted J-box with diodes/connectors | China | Covered nation | J-box and connector supply concentrated in China -> flagged. |
| Tin-coated Copper Solder RibbonCopper ribbon with Sn(:Pb) solder coating | China | Covered nation | Interconnect ribbon; tin solder refining China-concentrated. |
Processing and refining (10)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Polysilicon Refiner - Hemlock SemiconductorHemlock, Michigan, USA | United States | No known risk factor | US Siemens-process polysilicon; qualified on Maxeon closed list. |
| Polysilicon Refiner - WackerBurghausen/Nunchritz, Germany (also Charleston TN) | Germany | No known risk factor | German polysilicon; allied, non-China. |
| Polysilicon Refiner - OCIOCI, South Korea (and Malaysia expansion) | South Korea | No known risk factor | Korean polysilicon; allied-refined, non-China. |
| Silicon Metal Smelter (allied)Carbothermic arc furnaces, US/Norway/allied | United States | No known risk factor | Quartz + carbon reduced to ~99% silicon metal. Maxeon uses non-China smelters to keep the whole chain clean. |
| HPQ Processor - Sibelco / The Quartz CorpSibelco IOTA & The Quartz Corp, Spruce Pine, North Carolina | United States | No known risk factor | Near-monopoly on 4N8+ high-purity quartz; allied (Belgium/Norway ownership, US mine). |
| Copper Smelter / ElectrorefineryChinese copper smelters/electrorefineries | China | Covered nation | China dominates copper cathode refining; FEOC midstream chokepoint. |
| Silver Smelter/RefineryByproduct silver refining from base-metal smelters | China | Covered nation | Silver refining tied to base-metal smelters, China-concentrated midstream. |
| Alumina Refinery + Al SmelterBauxite->alumina (Bayer) then electrolytic smelting | China | Covered nation | China ~54% of alumina and dominant Al smelting; energy-intensive midstream chokepoint. |
| Solar Glass Float/Roll LineChinese solar-glass furnaces | China | Covered nation | Ultra-low-iron melt + rolling; China-dominated processing. |
| Tin SmelterChinese tin smelters (feed from Myanmar/Indonesia ore) | China | Covered nation | China dominant tin refiner; imports ore from Myanmar/Indonesia -> flagged. |
Raw material (6)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Solar-grade PolysiliconClosed supplier list: Hemlock (US), Wacker (Germany), OCI (Korea) | United States | No known risk factor | Maxeon's differentiator: zero China polysilicon. Sourced from allied refiners only. |
| Metallurgical-grade Silicon (MGSi)MGSi from a closed list of countries excluding China | United States | No known risk factor | Feedstock for polysilicon. China makes ~80% of global silicon metal, but Maxeon contractually excludes China-origin MGSi -> allied only. |
| Refined Copper (cathode)Electrorefined 99.99% Cu | China | Covered nation | China smelts >40% of global refined copper; midstream chokepoint -> flagged even when ore is allied-mined. |
| Refined SilverSilver smelting/refining | China | Covered nation | Much silver is a byproduct of Chinese lead/zinc/copper refining; China is a major refined-silver hub -> flagged. |
| Primary Aluminum IngotElectrolytic (Hall-Heroult) smelting | China | Covered nation | China ~60% of global primary aluminum output -> flagged midstream. |
| Refined Tin (solder)Tin smelting/refining | China | Covered nation | China ~48% of global refined tin output -> flagged midstream. |
Mine and extraction (7)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Metallurgical Quartz / Silica OreAllied quartz quarries (US/Norway/Spain) | United States | No known risk factor | Bulk SiO2 feed for silicon metal smelting; widely available, allied sources used. |
| Spruce Pine HPQ DepositSpruce Pine, North Carolina, USA | United States | No known risk factor | World's dominant high-purity quartz source; irreplaceable upstream chokepoint but allied/domestic. |
| Copper Ore (concentrate)Escondida/Chuquicamata (Chile), Peru | Chile | Elevated sourcing risk | Chile ~27% of world mine output; ore allied-mined but concentrate largely shipped to China for refining -> flagged downstream, mine itself review. |
| Silver OreSonora/Zacatecas (Mexico), Peru | Mexico | Elevated sourcing risk | Mexico is world's #1 silver producer; ore allied-mined but a share is refined in China -> mine review. |
| Bauxite OreGuinea (world's largest reserves), Australia, Indonesia | Guinea | Elevated sourcing risk | Bauxite allied/African-mined but ~70-80% of Guinea exports China-controlled and refined in China -> mine review. |
| Ultra-low-iron Silica SandSilica sand quarries feeding solar-glass furnaces | China | Covered nation | China largest producer/consumer of low-iron silica sand for glass -> flagged. |
| Tin Ore (cassiterite)Indonesia; Myanmar (feeds Chinese smelters) | Indonesia | Elevated sourcing risk | Tin ore mined in Indonesia/Myanmar; Myanmar ore heavily routed to Chinese smelters -> mine review. |
Material flow (35 relationships)
- Maxeon Solar Technologies manufactures IBC Solar Cell (crystalline silicon) (IBC solar cell)
- Maxeon Solar Technologies assembles Module Lamination & Assembly (Module lamination & assembly)
- IBC Solar Cell (crystalline silicon) supplies Monocrystalline Silicon Wafer (Monocrystalline silicon wafer)
- IBC Solar Cell (crystalline silicon) supplies Copper Foundation / Plated Cu Contacts (Plated copper foundation/contacts)
- IBC Solar Cell (crystalline silicon) supplies Silver Metallization Paste (Silver metallization paste)
- Monocrystalline Silicon Wafer supplies Solar-grade Polysilicon (Solar-grade polysilicon)
- Monocrystalline Silicon Wafer supplies High-Purity Quartz Crucible (HPQ crucible (CZ ingot growth))
- Solar-grade Polysilicon refines Polysilicon Refiner - Hemlock Semiconductor (Polysilicon (US))
- Solar-grade Polysilicon refines Polysilicon Refiner - Wacker (Polysilicon (Germany))
- Solar-grade Polysilicon refines Polysilicon Refiner - OCI (Polysilicon (Korea))
- Solar-grade Polysilicon supplies Metallurgical-grade Silicon (MGSi) (Metallurgical-grade silicon)
- Metallurgical-grade Silicon (MGSi) refines Silicon Metal Smelter (allied) (Silicon metal smelting)
- Silicon Metal Smelter (allied) sources from Metallurgical Quartz / Silica Ore (Metallurgical quartz ore)
- High-Purity Quartz Crucible refines HPQ Processor - Sibelco / The Quartz Corp (High-purity quartz processing)
- HPQ Processor - Sibelco / The Quartz Corp sources from Spruce Pine HPQ Deposit (Spruce Pine HPQ ore)
- Copper Foundation / Plated Cu Contacts supplies Refined Copper (cathode) (Refined copper cathode)
- Refined Copper (cathode) refines Copper Smelter / Electrorefinery (Copper electrorefining)
- Copper Smelter / Electrorefinery sources from Copper Ore (concentrate) (Copper ore concentrate)
- Silver Metallization Paste supplies Refined Silver (Refined silver)
- Refined Silver refines Silver Smelter/Refinery (Silver refining)
- Silver Smelter/Refinery sources from Silver Ore (Silver ore)
- Module Lamination & Assembly supplies Anodized Aluminum Frame (Aluminum frame)
- Module Lamination & Assembly supplies Low-iron Tempered Solar Glass (Solar glass)
- Module Lamination & Assembly supplies EVA / POE Encapsulant Film (EVA/POE encapsulant)
- Module Lamination & Assembly supplies Polymer Backsheet (fluoropolymer) (Backsheet)
- Module Lamination & Assembly supplies Junction Box + Bypass Diodes (Junction box)
- Module Lamination & Assembly supplies Tin-coated Copper Solder Ribbon (Solder ribbon interconnect)
- Anodized Aluminum Frame supplies Primary Aluminum Ingot (Primary aluminum ingot)
- Primary Aluminum Ingot refines Alumina Refinery + Al Smelter (Alumina refining + Al smelting)
- Alumina Refinery + Al Smelter sources from Bauxite Ore (Bauxite ore)
- Low-iron Tempered Solar Glass refines Solar Glass Float/Roll Line (Glass melting/rolling)
- Solar Glass Float/Roll Line sources from Ultra-low-iron Silica Sand (Ultra-low-iron silica sand)
- Tin-coated Copper Solder Ribbon supplies Refined Tin (solder) (Refined tin solder)
- Refined Tin (solder) refines Tin Smelter (Tin smelting)
- Tin Smelter sources from Tin Ore (cassiterite) (Tin ore (cassiterite))
Sources and methodology
Research-based supply-chain map compiled from public sources - not an audited bill of materials. Tiers reflect the standard industry structure for this product. Sourcing risk on a node describes where that input is typically mined or refined; it is not a FEOC determination for Maxeon Solar Technologies, and it is not a screening result for the node itself unless a federal listing is cited against it. Verify against primary documentation before making a compliance determination.
Primary sources (2) - government, filings, standards bodies
Secondary sources (25) - trade press, analysts, reference works
- corp.maxeon.com corp.maxeon.com/static-files/23e4d6e8-f4c6-4bb8-a6bb-d4b59fc01f26
- maxeon.com maxeon.com/maxeon-blog/a-clean-solar-supply-chain
- corp.maxeon.com corp.maxeon.com/news-releases/news-release-details/how-maxeon-walks-talk-clean-solar-supply-chain
- pv-magazine-usa.com pv-magazine-usa.com/2023/11/10/maxeon-solar-cells-cleared-of-forced-labor-allegations-after-review/
- taiyangnews.info taiyangnews.info/technology/maxeon-ibc-tbc-mature-ecosystem-efficiency-reliability
- cleanenergyreviews.info cleanenergyreviews.info/blog/sunpower-solar-panels-review
- renewableenergyworld.com renewableenergyworld.com/solar/a-theory-emerges-explaining-maxeons-ongoing-problems-with-customs/
- bernreuter.com bernreuter.com/newsroom/press-releases/bernreuter-research-wacker-oci-win-the-day-with-china-duties/
- itif.org itif.org/publications/2025/09/08/china-plans-to-dominate-a-key-semiconductor-material/
- waferpro.com waferpro.com/chinas-dominance-in-the-global-silicon-supply/
- minespider.com minespider.com/blog/know-the-source-the-polysilicon-supply-chain
- sibelco.com sibelco.com/en/news/sibelco-announces-a-major-expansion-of-its-spruce-pine-usa-high-purity-quartz-operations
- construction-physics.com construction-physics.com/p/does-all-semiconductor-manufacturing
- app.dealroom.co app.dealroom.co/news/note/spruce-pine-quartz-the-critical-upstream-dependency-for-silicon-wafer-manufacturing
- farmonaut.com farmonaut.com/mining/world-silver-producers-2025-top-global-trends-insights
- pv-magazine.com pv-magazine.com/2025/11/06/mexico-leads-latin-american-countries-in-global-silver-production/
- discoveryalert.com.au discoveryalert.com.au/aluminium-producers-manufacturers-value-chain-mine-market-2026/
- transitionasia.org transitionasia.org/the-chinese-aluminium-sector-challenges-and-opportunities-for-decarbonisation/
- growthmarketreports.com growthmarketreports.com/report/low-iron-silica-sand-for-solar-glass-market/amp
- features.csis.org features.csis.org/copper-in-latin-america/
- spglobal.com spglobal.com/sustainable1/en/insights/special-editorial/chile-and-peru-s-copper-for-energy-transition
- taiyangnews.info taiyangnews.info/technology/trends-key-players-in-the-global-solar-encapsulation-market
- taiyangnews.info taiyangnews.info/technology/jolywoods-dual-fluoropolymer-ffc-backsheets
- sciencedirect.com sciencedirect.com/science/article/pii/S2950555025000400
- geographyworlds.com geographyworlds.com/blog/tin-mining-geography-guide/
Common questions
- Where does Maxeon Solar Technologies source the inputs in this product?
- This map traces 36 inputs across 11 countries, including 17 mines and refiners. It is compiled from public sources and is not an audited bill of materials.
- How much of the Maxeon Solar Technologies supply chain sits in a covered nation?
- 17 of 36 mapped inputs are sited in a covered nation (China, Russia, Iran or North Korea) or named on a federal restricted-party list. A further 8 carry elevated sourcing risk without either basis.
- Is Maxeon Solar Technologies itself a Foreign Entity of Concern?
- Uncertain. Maxeon Solar Technologies is not named on any of the 3 federal restricted-party lists screened for this record (DOD Section 1260H, BIS Entity List, OFAC SDN List), but its FEOC status is unresolved and depends on ownership or component-level analysis. Sourcing risk in this map describes where inputs are mined and refined and is a separate question from the company's own federal screening.
