Where does Sineng Electric source the inputs in this product?

This map traces 37 inputs across 3 countries, including 10 mines and refiners. It is compiled from public sources and is not an audited bill of materials.

How much of the Sineng Electric supply chain sits in a covered nation?

35 of 37 mapped inputs are sited in a covered nation (China, Russia, Iran or North Korea) or named on a federal restricted-party list. A further 1 carry elevated sourcing risk without either basis.

FEOC ComplianceProspector Labs

Back to supply chains

Where does Sineng Electric source its components?

China. Supply chain mapped to 37 inputs across 3 countries.

Federal screeningFlagged

Yes. Sineng Electric is organized in China, a covered nation under the FEOC rules, which makes it a foreign entity of concern for IRA clean-energy tax credit purposes. It 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). Is Sineng Electric a Foreign Entity of Concern?

Upstream sourcing exposure

High96% weighted

35 in covered nations - 1 elevated, of 37 nodes.

Where inputs are mined and refined. Not a FEOC determination for the company -- see the federal list screening above.

Refining chokepoint

7 of 7 processing/refining steps in covered nations

Where the exposure sits - by supply-chain tier

Producer1

Component9

Processing / Refining7

Raw Material16

Mine / Extraction3

Logistics1

designated covered nation elevated no known factor not assessed

Loading chain view...

Sourcing Concentration by Country

Covered NationAllied NationOther

Sourcing risk across the graph

Where each input is mined or refined. Not a FEOC determination for the company.

Designated (0%)

Covered nation (95%)

Elevated (3%)

No known factor (3%)

Legend

Node Types

Producer

Supplier

Component

Processing / Refining

Raw Material

Mine / Extraction

Logistics

Sourcing risk

Federally designated - named on a restricted-party list

Covered nation - sited in China, Russia, Iran or North Korea

Elevated - documented concentration risk, no federal listing

No known risk factor - not a compliance clearance

Not assessed - no sourcing judgement was made

Relationships

Transformation - manufactures / assembles

Refining - midstream processing (FEOC chokepoint)

Supply handoff - supplies / sources from

Arrows point in the direction material flows (input to product).

Every mapped input in the Sineng Electric supply chain

37 nodes, grouped by supply-chain tier. Sourcing risk describes where an input is mined or refined; it is not a FEOC determination for Sineng Electric.

Producer (1)

Input	Origin	Sourcing risk	Basis
Sineng ElectricWuxi & Wuzhong (Ningxia), China; Bangalore, India	China	Covered nation	BNEF Tier-1 PV/ESS inverter maker, #4 global inverter shipments 2023-2024; China HQ = FEOC-flagged entity.

Component (9)

Input	Origin	Sourcing risk	Basis
IGBT Power Module	China	Covered nation	Core switching stage; sourced from IDMs (Infineon/Fuji/Mitsubishi) and increasingly Chinese vendors. Mixed origin -> review.
SiC MOSFET Module	China	Covered nation	Used in high-efficiency boost/DC-DC stages of newer string inverters; ST/onsemi/Infineon plus ST-Sanan China JV. Mixed -> review.
DC-Link Film Capacitor	China	Covered nation	Metallized polypropylene film caps buffer the DC bus; largely China-manufactured for Chinese inverter makers.
Aluminum Electrolytic Capacitor	China	Covered nation	Low-frequency bus filtering; anode/cathode etched Al foil. China dominates the capacitor Al-foil chain.
Magnetics (Transformer / Inductor / Choke)	China	Covered nation	Boost inductors, filter chokes, isolation transformers; wound with copper magnet wire on ferrite/silicon-steel/nanocrystalline cores. China-built.
PCB / Control Board	China	Covered nation	6-8 layer power PCB on copper-clad laminate; Guangdong/Jiangsu is the densest CCL-PCB cluster.
Control MCU / Gate Driver ICs	China	Covered nation	DSP/MCU and gate-driver silicon; mixed foreign (TI/Infineon) and domestic supply -> review.
Die-Cast Aluminum Enclosure / Heatsink	China	Covered nation	HPDC Al housing + heatsink for IP65/67 thermal management; China die-casting supply base.
Copper Busbars & Internal Wiring	China	Covered nation	Power distribution busbars, AC/DC terminals and harness; copper China-fabricated.

Processing and refining (7)

Input	Origin	Sourcing risk	Basis
Silicon Arc-Furnace RefinerChina submerged-arc furnaces	China	Covered nation	Carbothermal reduction of quartz -> silicon metal; energy-intensive step China dominates.
Polysilicon Refiner (Siemens process)Xinjiang / Inner Mongolia, China	China	Covered nation	Distillation + CVD purification of silicon metal to 11N polysilicon; China-dominated chokepoint.
SiC Crystal Growth / Epi RefinerChina (Sanan) & US/EU IDMs	China	Covered nation	High-temp PVT crystal growth of SiC from Si+C powder; split allied/China supply -> review.
Gallium Extraction Refiner (Bayer liquor)China alumina refineries	China	Covered nation	Gallium recovered from Bayer-process liquor via resin; extraction tech China export-controlled Jan 2025.
Copper Smelter / RefinerChina smelters	China	Covered nation	4 of world's 5 largest copper smelters in China; concentrate shipped Chile/Peru -> China refining.
Alumina Refinery (Bayer process)China alumina plants (some in Guinea)	China	Covered nation	Bayer refining of bauxite to alumina; China dominant, and source of the Bayer liquor gallium is pulled from.
Aluminum Smelter (electrolytic Al)China electrolytic aluminum	China	Covered nation	Hall-Heroult smelting of alumina to primary aluminum for enclosure die-casting and cap foil; China ~55%+ of primary Al.

Raw material (16)

Input	Origin	Sourcing risk	Basis
Silicon Wafer (device grade)	China	Covered nation	FZ/CZ single-crystal Si substrate for IGBT/MOSFET die; China building full 200mm IGBT wafer chain.
Electronic-Grade Polysilicon	China	Covered nation	Siemens-process hyperpure Si; China >95% of global polysilicon supply.
Metallurgical-Grade Silicon Metal	China	Covered nation	98-99% Si from carbothermal reduction of quartz; China ~80% of global silicon-metal output.
SiC Substrate / Epi-Wafer	China	Covered nation	Bulk SiC boule + epitaxy; US/EU/Japan lead substrates, ST-Sanan 8-inch JV growing in China -> review.
Gallium (GaN) Wide-Bandgap Material	China	Covered nation	Gallium for wide-bandgap semis; China ~99% of primary gallium, export-controlled since 2024.
Etched/Formed Aluminum Capacitor Foil	China	Covered nation	High-purity etched anode/cathode foil; China holds the complete Al-foil-to-capacitor chain.
BOPP Capacitor Film (polypropylene)	China	Covered nation	Biaxially-oriented metallized PP dielectric film for DC-link caps; China/Asia film supply.
Refined Copper (cathode / magnet wire)	China	Covered nation	Copper for busbars, windings, foil; China ~48% of world refined copper output.
Copper Magnet Wire	China	Covered nation	Enameled copper wire for transformer/inductor windings; China-drawn from refined copper.
Ferrite / Nanocrystalline / Si-Steel Core	China	Covered nation	MnZn ferrite, nanocrystalline and grain-oriented silicon-steel cores for magnetics; China leading core supplier.
Iron Oxide / Manganese-Zinc (ferrite feed)	China	Covered nation	Fe2O3 + Mn/Zn oxides sintered into ferrite cores; China ferrite powder base.
Copper-Clad Laminate (CCL)Guangdong / Jiangsu, China	China	Covered nation	FR-4 laminate = copper foil + fiberglass + epoxy resin; China dominant CCL producer base.
Electrodeposited Copper Foil	China	Covered nation	ED copper foil clad onto CCL; ~519 China copper-foil factories in the CCL cluster.
Electronic Fiberglass (E/NE-glass)	China	Covered nation	Glass-fiber cloth reinforcement; least-elastic CCL input, China-concentrated production.
Epoxy Resin (CCL binder)	China	Covered nation	Epoxy resin binder for laminate; ~1,072 China epoxy-resin facilities feed the CCL chain.
Stainless / Coated Steel (chassis, fasteners)	China	Covered nation	Steel for mounting frame, brackets and hardware; China-milled steel.

Mine and extraction (3)

Input	Origin	Sourcing risk	Basis
Quartz / Silica (quartzite) MineChina quartzite deposits	China	Covered nation	Feedstock quartzite for silicon-metal furnaces; China holds large high-grade silica reserves. (HPQ for crucibles concentrated at Spruce Pine, NC.)
Copper Mine (concentrate)Chile / Peru / DRC	Chile	No known risk factor	Chile ~25% + Peru ~13% of global mined copper; DRC fast-growing. Mining allied/mixed, mine itself clean.
Bauxite MineGuinea / Australia / China	Guinea	Elevated sourcing risk	Bauxite ore for alumina->aluminum (enclosure, foil) and gallium byproduct; Guinea + Australia key, some China-owned.

Logistics (1)

Input	Origin	Sourcing risk	Basis
Ocean & Overland FreightChina ports -> global	China	Covered nation	Copper concentrate Chile/Peru->China inbound and finished-inverter export outbound; multi-flag carriers -> review.

Material flow (44 relationships)

Sineng Electric assembles IGBT Power Module (IGBT power module)
Sineng Electric assembles SiC MOSFET Module (SiC MOSFET module)
Sineng Electric assembles DC-Link Film Capacitor (DC-link film capacitor)
Sineng Electric assembles Aluminum Electrolytic Capacitor (aluminum electrolytic capacitor)
Sineng Electric assembles Magnetics (Transformer / Inductor / Choke) (magnetics)
Sineng Electric assembles PCB / Control Board (PCB / control board)
Sineng Electric assembles Control MCU / Gate Driver ICs (control MCU / gate driver)
Sineng Electric assembles Die-Cast Aluminum Enclosure / Heatsink (die-cast aluminum enclosure)
Sineng Electric assembles Copper Busbars & Internal Wiring (copper busbars & wiring)
Sineng Electric supplies Stainless / Coated Steel (chassis, fasteners) (steel chassis & fasteners)
Sineng Electric sources from Ocean & Overland Freight (freight & logistics)
IGBT Power Module supplies Silicon Wafer (device grade) (silicon wafer die)
Control MCU / Gate Driver ICs supplies Silicon Wafer (device grade) (silicon wafer die)
Silicon Wafer (device grade) supplies Electronic-Grade Polysilicon (electronic-grade polysilicon)
Electronic-Grade Polysilicon refines Polysilicon Refiner (Siemens process) (polysilicon (Siemens process))
Polysilicon Refiner (Siemens process) supplies Metallurgical-Grade Silicon Metal (metallurgical-grade silicon)
Metallurgical-Grade Silicon Metal refines Silicon Arc-Furnace Refiner (silicon metal (carbothermal))
Silicon Arc-Furnace Refiner sources from Quartz / Silica (quartzite) Mine (quartzite ore)
SiC MOSFET Module supplies SiC Substrate / Epi-Wafer (SiC substrate / epi-wafer)
SiC Substrate / Epi-Wafer refines SiC Crystal Growth / Epi Refiner (SiC crystal growth & epitaxy)
SiC Crystal Growth / Epi Refiner sources from Metallurgical-Grade Silicon Metal (silicon feed for SiC)
IGBT Power Module supplies Gallium (GaN) Wide-Bandgap Material (gallium (wide-bandgap option))
Gallium (GaN) Wide-Bandgap Material refines Gallium Extraction Refiner (Bayer liquor) (gallium extraction)
Gallium Extraction Refiner (Bayer liquor) sources from Alumina Refinery (Bayer process) (Bayer liquor (gallium host stream))
Aluminum Electrolytic Capacitor supplies Etched/Formed Aluminum Capacitor Foil (etched aluminum capacitor foil)
Etched/Formed Aluminum Capacitor Foil refines Aluminum Smelter (electrolytic Al) (primary aluminum)
DC-Link Film Capacitor supplies BOPP Capacitor Film (polypropylene) (BOPP dielectric film)
BOPP Capacitor Film (polypropylene) supplies Etched/Formed Aluminum Capacitor Foil (metallization aluminum)
Copper Busbars & Internal Wiring supplies Refined Copper (cathode / magnet wire) (refined copper)
Magnetics (Transformer / Inductor / Choke) supplies Copper Magnet Wire (copper magnet wire)
Magnetics (Transformer / Inductor / Choke) supplies Ferrite / Nanocrystalline / Si-Steel Core (magnetic core)
Copper Magnet Wire supplies Refined Copper (cathode / magnet wire) (refined copper)
Ferrite / Nanocrystalline / Si-Steel Core supplies Iron Oxide / Manganese-Zinc (ferrite feed) (iron oxide / MnZn feed)
Refined Copper (cathode / magnet wire) refines Copper Smelter / Refiner (copper cathode)
Copper Smelter / Refiner sources from Copper Mine (concentrate) (copper concentrate)
Die-Cast Aluminum Enclosure / Heatsink supplies Aluminum Smelter (electrolytic Al) (die-cast aluminum)
Aluminum Smelter (electrolytic Al) refines Alumina Refinery (Bayer process) (alumina)
Alumina Refinery (Bayer process) sources from Bauxite Mine (bauxite ore)
PCB / Control Board supplies Copper-Clad Laminate (CCL) (copper-clad laminate)
Copper-Clad Laminate (CCL) supplies Electrodeposited Copper Foil (electrodeposited copper foil)
Copper-Clad Laminate (CCL) supplies Electronic Fiberglass (E/NE-glass) (electronic fiberglass)
Copper-Clad Laminate (CCL) supplies Epoxy Resin (CCL binder) (epoxy resin)
Electrodeposited Copper Foil supplies Refined Copper (cathode / magnet wire) (refined copper)
Ocean & Overland Freight sources from Copper Mine (concentrate) (copper concentrate inbound freight)

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 Sineng Electric, 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.

Secondary sources (25) - trade press, analysts, reference works

Common questions

Where does Sineng Electric source the inputs in this product?: This map traces 37 inputs across 3 countries, including 10 mines and refiners. It is compiled from public sources and is not an audited bill of materials.
How much of the Sineng Electric supply chain sits in a covered nation?: 35 of 37 mapped inputs are sited in a covered nation (China, Russia, Iran or North Korea) or named on a federal restricted-party list. A further 1 carry elevated sourcing risk without either basis.
Is Sineng Electric itself a Foreign Entity of Concern?: Yes. Sineng Electric is organized in China, a covered nation under the FEOC rules, which makes it a foreign entity of concern for IRA clean-energy tax credit purposes. It 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). Sourcing risk in this map describes where inputs are mined and refined and is a separate question from the company's own federal screening.

Federal list screening for Sineng Electric Open in workspace