Polysilicon plant expansion
Hemlock Semiconductor (HSC), Thomas Township, Saginaw County, Michigan
Polysilicon plant expansion in Thomas Township, Michigan is Hemlock Semiconductor (HSC)’s plant for high-purity polysilicon for semiconductors and solar. Status: under construction as of October 21, 2022 (groundbreaking). Hemlock Semiconductor (HSC) announced $375 million and 170 jobs. Primary source: michigan.gov, checked November 12, 2026.
- Status
- Under construction
- Announced investment
- $375 million
- Announced jobs
- 170
- Industry
- Semiconductors
- Sheet
- MI-30
- Revised
- November 12, 2026
Status timeline
- Announcedmichigan.gov
- Groundbreakingmichigan.gov
Filled dots are confirmed by a company, state, SEC or federal source. Dashed dots come from news reports only. Investment and job figures are as announced, not achieved.
Plant facts
| Company | Hemlock Semiconductor (HSC) |
|---|---|
| Plant | Polysilicon plant expansion |
| Location | Thomas Township, Saginaw County, Michigan |
| Industry | Semiconductors |
| Product | High-purity polysilicon for semiconductors and solar |
| Announced investment | $375 million |
| Announced jobs | 170 |
| Last checked | November 12, 2026 |
Sources
- Whitmer launches groundbreaking on new $375 million expansion of Hemlock Semiconductor (state release, michigan.gov, checked November 12, 2026)
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