Hemlock Semiconductor Operations
Hemlock Semiconductor Operations manufactures hyper-pure polycrystalline silicon (11 nines purity) for semiconductor wafer and solar panel manufacturers. It is the only U.S.-headquartered polysilicon producer and one of only five globally capable of leading-edge chip-grade output.
- Company typePrivate
- Founded1961
- HeadquartersHemlock, United States
- Headcount1,001–5,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Hemlock Semiconductor Operations does
Hemlock Semiconductor Operations (HSC) is a private U.S.-headquartered manufacturer of hyper-pure polycrystalline silicon, founded in 1961 and based in Hemlock, Michigan. The company is majority-owned by Corning Incorporated with Shin-Etsu Handotai holding a minority stake. HSC produces polysilicon at 99.999999999% purity (11 nines) and is one of only five companies in the world capable of producing leading-edge semiconductor-grade polysilicon, supplying downstream semiconductor wafer manufacturers and solar panel producers that serve chip fabrication, AI hardware, automotive electronics, and photovoltaic end markets. HSC is the only polysilicon manufacturer headquartered in the United States, a positioning that uniquely qualifies it for IRA domestic content bonus credits and CHIPS Act funding.
HSC's operations are anchored by its Next-Generation Finishing (NGF) facility, completed in August 2024, which enables production of semiconductor-grade polysilicon at parts-per-trillion purity levels for next-generation chips. The company is vertically integrated through its trichlorosilane (TCS) operations acquired from DuPont in Midland, Michigan, supplying both internal raw material needs and external chemical customers. HSC is the first polysilicon manufacturer worldwide to earn IATF 16949 automotive quality certification, positioning it to serve automotive semiconductor customers with stringent quality requirements. The company is the largest single-site electricity user in Michigan and a major customer of Consumers Energy, with manufacturing processes designed to deliver ultra-low-carbon polysilicon that enables solar customers to reduce embodied carbon in panels by up to 50%.
HSC operates a sales-led B2B go-to-market with a dedicated commercial organization including separate directors for semiconductor, solar, and chemical sales segments. Multi-year contracts and direct relationships with global wafer manufacturers and solar panel producers (including SUMCO Japan, T1 Energy, Suniva, and Heliene) form the core revenue mechanism. The company received up to $325 million in proposed direct CHIPS Act funding in October 2024 and is positioned as a critical upstream node in the U.S. domestic solar and semiconductor supply chains being rebuilt under the IRA and CHIPS Act.
Hemlock Semiconductor Operations firmographics
Firmographics- Name
- Hemlock Semiconductor Operations
- Legal name
- Hemlock Semiconductor Operations LLC
- Website
- https://hscpoly.com
- Company type
- Private
- Founded year
- 1961
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Hemlock Semiconductor Operations manufactures hyper-pure polycrystalline silicon (11 nines purity) for semiconductor wafer and solar panel manufacturers. It is the only U.S.-headquartered polysilicon producer and one of only five globally capable of leading-edge chip-grade output.
- Ownership category
- akta.pro rank
Hemlock Semiconductor Operations industry classification
Industry- Product category
- Semiconductor Materials
- NAICS
- Semiconductor and Other Electronic Component Manufacturing (3344)
- SIC
- Semiconductors & Related Devices (3674)
- akta.pro primary industry
- Thin-Film Deposition Materials (PVD/CVD/ALD Targets & Precursors) (HDAHAGAH)
Keywords
Where Hemlock Semiconductor Operations is headquartered
LocationHeadquarters
- HQ city
- Hemlock
- HQ country
- United States
- HQ region
- North America
Offices4 records
Markets served
Hemlock Semiconductor Operations business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Personnel, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Polysilicon Sales - Semiconductor: HSC sells hyper-pure polysilicon to semiconductor wafer manufacturers for use in chip fabrication. As one of only five polysilicon manufacturers in the world integral to the semiconductor supply chain, nearly all electronic devices in the world contain HSC polysilicon. Approximately one-third of all devices requiring a chip have HSC polysilicon in them.
- Polysilicon Sales - Solar: HSC supplies hyper-pure polysilicon to solar panel manufacturers for photovoltaic cell production. The company is a critical raw material supplier in the U.S. solar supply chain, partnering with companies like T1 Energy, Suniva, and Heliene for fully U.S.-made solar modules.
- Chemical Sales (Trichlorosilane): Following the acquisition of DuPont's trichlorosilane operations, HSC produces and sells TCS as both an internal raw material for polysilicon production and as a product sold to external customers. Matthew Bierman serves as Chemical Sales Commercial Director.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Commodity B2B polysilicon sales with no publicly disclosed pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels6 records
Hemlock Semiconductor Operations product offering
Product offeringCore offering
Hemlock Semiconductor Operations manufactures hyper-pure polycrystalline silicon (polysilicon) at 99.999999999% purity (11 nines), sold in two primary grades: semiconductor-grade polysilicon for chip fabrication and solar-grade polysilicon for photovoltaic cells. The company is one of only five globally capable of producing leading-edge semiconductor-grade polysilicon and is the only such manufacturer headquartered in the United States. HSC also produces and sells trichlorosilane (TCS), the primary raw material for polysilicon production, following its acquisition of DuPont's TCS operations.
Product overview
Hemlock Semiconductor Operations (HSC) is a hyper-pure polysilicon manufacturer producing the world's purest human-made substance. The company operates as a single-product core offering with backward integration through its trichlorosilane (TCS) raw material operations. HSC's polysilicon comes in two main variants: semiconductor-grade polysilicon (for microchips used in electronics, automotive, AI, and quantum computing applications) and solar-grade polysilicon (for photovoltaic cells and modules). The Next-Generation Finishing (NGF) facility enables the company to produce semiconductor-grade polysilicon at parts-per-trillion purity levels. The company is majority-owned by Corning Incorporated with Shin-Etsu Handotai holding a minority stake, and operates exclusively from its Hemlock, Michigan facility.
Differentiator
Problem solved
Functional benefit
Products and services
- Hyper-Pure Polysilicon Hyper-pure polycrystalline silicon (polysilicon) at 99.999999999% purity (11 nines), described as the world's purest human-made substance. Serves as the foundational raw material for semiconductor chip fabrication and solar photovoltaic panels. HSC is one of only five companies in the world capable of producing the highest quality polysilicon for leading-edge chips, and approximately one-third of all devices requiring a chip contain HSC polysilicon.
- Semiconductor-Grade Polysilicon Ultra-high purity polysilicon (11 nines pure) specifically produced for semiconductor device and microchip manufacturing. Used in chips powering smartphones, computers, automotive electronics, AI systems, autonomous vehicles, aerospace applications, and quantum computing. Supplies global wafer manufacturers including SUMCO Japan (recognized HSC as 2022 Supplier of the Year).
- Solar-Grade Polysilicon High-purity polysilicon produced for solar photovoltaic (PV) cell and module manufacturing. Enables production of solar panels that power clean energy generation, with U.S.-made polysilicon supporting ultra-low-carbon solar panels that reduce embodied carbon by up to 50%. Critical raw material supplier in the U.S. solar supply chain, supplying companies like T1 Energy, Suniva, and Heliene for fully U.S.-made solar modules.
- Trichlorosilane (TCS) Trichlorosilane (TCS) is the primary raw material used in producing ultra-pure polysilicon. Following the acquisition of DuPont's TCS operations, HSC produces TCS both for internal polysilicon production and as a product sold to external chemical industry customers. Production facility located in Midland, Michigan.
Quantifiable outcome
- Reduce embodied carbon in solar panels by up to 50% using U.S.-made polysilicon
- +2 more outcomes
Companies that use Hemlock Semiconductor Operations
Customer profileNamed customers4 records
Segments3 records
Ideal customer profiles3 records
Hemlock Semiconductor Operations technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Hemlock Semiconductor Operations partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core, major and minor.
- T1 EnergycoreT1 Energy sources polysilicon from HSC as a critical link in its integrated U.S. polysilicon solar supply chain. T1 Energy's G2_Austin solar cell facility in Texas (2.1 GW capacity, expected by end of 2026) sources polysilicon and wafers from HSC and Corning. The partnership forms a critical link in an end-to-end domestic solar manufacturing chain.
- Corning Inc. (wafer supply)coreCorning Inc. supplies wafers to T1 Energy's integrated U.S. solar supply chain alongside HSC's polysilicon. This creates a fully domestic supply chain from polysilicon through wafers, cells, and modules.
- Suniva and HelienemajorCorning partnered with Suniva and Heliene to announce the only solar module made entirely with U.S.-manufactured polysilicon, wafers, and cells. This fully domestic solar supply chain leverages HSC's polysilicon, Corning's wafers, and U.S.-based cell manufacturing.
- Corning Incorporated (parent)coreCorning announced acceleration of advanced manufacturing operations in Saginaw County, Michigan to meet growing demand for U.S.-made solar components. The expansion leverages Corning's ownership of HSC and creates approximately 400 new jobs (total of 1,500 positions). The facility leverages HSC's hyper-pure polysilicon to strengthen the domestic solar supply chain.
- DuPont (Trichlorosilane Acquisition)majorHSC acquired DuPont's trichlorosilane (TCS) business unit, the primary raw material used in producing ultra-pure polysilicon. This vertical integration strengthens HSC's position in both semiconductor and solar industries and enables accelerated decarbonization of the solar supply chain.
- Consumers EnergymajorHSC is the largest single-site user of electricity in Michigan and the largest customer of Consumers Energy. HSC collaborated with Consumers Energy to develop a peak power management program and advocated for the utility's Clean Energy Plan, which commits Michigan's largest energy provider to being coal-free by 2025 and 90% clean energy by 2040.
- Delta CollegeminorHSC partners with Delta College and the University of Michigan on the Sustainability Teacher Fellowship program, supporting K-12 teachers in delivering hands-on sustainability education across the Great Lakes Bay Region.
- Pumford Construction and local contractorsminorKey project partners for the NGF facility construction included Saginaw-based general contractor Pumford Construction, Valley Electrical Contractors, Three Rivers Corporation, Johnston Contracting, John E. Green Company, Wendling Sheet Metal, Bierlein Companies, and Murray Painting. Most project partners are based in the Great Lakes Bay Region.
Scale indicators8 records
Recent moves10 records
Expansion highlights6 records
Hemlock Semiconductor Operations competitors and assessment
Company assessmentDirect peers
- Wacker Chemie: Wacker Chemie is the leading German polysilicon manufacturer with major semiconductor and solar-grade production capacity, directly competing with HSC in both market segments. Wacker's Burghausen and Nünchritz facilities make it one of the few non-Chinese producers of high-purity polysilicon, comparable in scale and product mix to HSC.
- REC Silicon: REC Silicon is a U.S.-headquartered (Norwegian operations) polysilicon producer supplying semiconductor and solar markets, making it a direct competitor to HSC in both grades. REC operates Moses Lake (Washington) and Butte (Montana) facilities and shares HSC's positioning as a non-Chinese, high-purity polysilicon supplier.
- OCI Company: OCI is a Korean chemical company that produces semiconductor and solar-grade polysilicon through OCI TerraSus, formerly one of the world's largest polysilicon producers. OCI competes directly with HSC in both semiconductor wafer feedstock and solar markets globally.
- Tokuyama Corporation: Tokuyama is a Japanese chemical manufacturer producing semiconductor-grade polysilicon for the global electronics industry, directly competing with HSC for advanced-node chip manufacturers. As one of the few high-purity polysilicon producers, Tokuyama is a close comparably-sized competitor.
- Tongwei Solar: Tongwei is the world's largest polysilicon producer, controlling a substantial share of Chinese capacity. While primarily solar-grade focused, Tongwei is rapidly expanding into semiconductor-grade and competes with HSC on price across global solar markets.
- GCL Technology Holdings: GCL Technology is one of China's largest polysilicon producers and a major global competitor to HSC, particularly in solar-grade material. GCL has significant capacity and competing cost structure, making it a key pricing benchmark for HSC's solar-grade volumes.
- Daqo New Energy: Daqo is a leading Chinese polysilicon manufacturer listed on the NYSE, primarily serving solar PV markets. Daqo's Xinjiang-based production gives it among the lowest-cost polysilicon globally, competing directly with HSC in solar-grade supply.
- Xinte Energy: Xinte Energy is a Chinese polysilicon producer and subsidiary of TBEA, focused on solar-grade material with growing capacity. Xinte represents the lower-cost Chinese competition that drives global polysilicon pricing dynamics affecting HSC.
Broad incumbents
- Shin-Etsu Chemical: Shin-Etsu Chemical is the parent of Shin-Etsu Handotai (minority owner of HSC) and the world's largest semiconductor wafer manufacturer. As HSC's minority owner and downstream customer via its wafer business, Shin-Etsu provides both a strategic relationship and a reference point for vertical integration in silicon materials.
Others
- SUMCO Corporation: SUMCO is one of the world's largest silicon wafer manufacturers and a direct customer of HSC (awarded HSC 2022 Supplier of the Year). SUMCO represents a key downstream consumer of HSC's semiconductor-grade polysilicon and exemplifies the tightly integrated semiconductor materials supply chain HSC participates in.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Hemlock Semiconductor Operations social profiles
Digital presenceHemlock Semiconductor Operations compliance and trust
Trust signalCompliance2 records
Hemlock Semiconductor Operations financial estimates
Financial estimateRevenue estimate
Valuation estimate
Hemlock Semiconductor Operations leadership team
Management profileNumber of profiles
Profiles10 records
Hemlock Semiconductor Operations funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Hemlock Semiconductor Operations M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Hemlock Semiconductor Operations
What does Hemlock Semiconductor Operations do?
Hemlock Semiconductor Operations manufactures hyper-pure polycrystalline silicon (polysilicon) at 99.999999999% purity (11 nines), sold in two primary grades: semiconductor-grade polysilicon for chip fabrication and solar-grade polysilicon for photovoltaic cells. The company is one of only five globally capable of producing leading-edge semiconductor-grade polysilicon and is the only such manufacturer headquartered in the United States. HSC also produces and sells trichlorosilane (TCS), the primary raw material for polysilicon production, following its acquisition of DuPont's TCS operations.
Is Hemlock Semiconductor Operations a public or private company?
Hemlock Semiconductor Operations is a private company. It is classified as corporate owned and is currently operating.
When was Hemlock Semiconductor Operations founded?
Hemlock Semiconductor Operations was founded in 1961. It employs 1,001 to 5,000 people.
Where is Hemlock Semiconductor Operations based?
Hemlock Semiconductor Operations is headquartered in Hemlock, United States, in the North America region.
How does Hemlock Semiconductor Operations make money?
Three revenue lines are on record. Polysilicon Sales - Semiconductor is the primary driver. The others are polysilicon Sales - Solar and chemical Sales (Trichlorosilane).
Who are Hemlock Semiconductor Operations's main competitors?
Direct peers on record are Wacker Chemie, REC Silicon, OCI Company, Tokuyama Corporation, Tongwei Solar, GCL Technology Holdings, Daqo New Energy and Xinte Energy. Shin-Etsu Chemical is listed as a broad incumbent. SUMCO Corporation is listed as an others.
Does Hemlock Semiconductor Operations have an API?
No public API is recorded for Hemlock Semiconductor Operations.
What industry is Hemlock Semiconductor Operations in?
Hemlock Semiconductor Operations's product category is Semiconductor Materials. Its primary akta.pro industry code is HDAHAGAH, Thin-Film Deposition Materials (PVD/CVD/ALD Targets & Precursors). Its NAICS code is 3344 and its SIC code is 3674.