Bay City silicon carbide wafer plant
SK Siltron CSS, Monitor Township, Bay County, Michigan
Bay City silicon carbide wafer plant in Monitor Township, Michigan is SK Siltron CSS’s plant for silicon carbide (SiC) wafers. Status: operating as of September 1, 2022 (production started). SK Siltron CSS announced $300 million and 150 jobs. Primary source: michigan.gov, checked November 12, 2026.
- Status
- Operating
- Announced investment
- $300 million
- Announced jobs
- 150
- Industry
- Semiconductors
- Sheet
- MI-55
- Revised
- November 12, 2026
Status timeline
- Announcedeng.sk.com
- Production startedmichigan.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 | SK Siltron CSS |
|---|---|
| Plant | Bay City silicon carbide wafer plant |
| Location | Monitor Township, Bay County, Michigan |
| Industry | Semiconductors |
| Product | Silicon carbide (SiC) wafers |
| Announced investment | $300 million |
| Announced jobs | 150 |
| Last checked | November 12, 2026 |
Sources
- Whitmer and SK Siltron bring semiconductor supply chain to Michigan with new Bay City facility (state release, michigan.gov, checked November 12, 2026)
- SK Siltron CSS celebrates ribbon cutting of new Bay City, Michigan manufacturing facility (company release, eng.sk.com, checked November 12, 2026)
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