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Bay City, Bay County, MI43.594, -83.889

SK Siltron CSS Bay City

Under ConstructionManufacturing

SK Siltron

Bay City, Bay County, MI

Verification70/100

How corroborated this project is, 0 to 100, built from primary evidence: permits, utility interconnection filings, procurement notices and hiring activity. Higher means more independent sources confirm it.

SK Siltron's silicon-carbide wafer plant, acquired from DuPont's legacy Bay City facility in 2020, is expanding capacity with a confirmed $300 million investment to supply SiC substrates for EV power electronics and grid equipment. Roughly 150 jobs are tied to the expansion phase.

Investment$300M
Power demand·
Jobs150
Serving utilityConsumers Energy

Development stage

  1. Site Selection
  2. Pre-Construction
  3. Permitting
  4. Construction

Project timeline

Every detected update, newest first

  1. Local procurement notice filedProcurement+3 evidence

    Local trade press flagged a procurement notice tied to SK Siltron CSS Bay City.

    Jun 5, 2026Local reporting / county records
  2. Building permit filedPermit+2 evidence

    County permitting records show progress on SK Siltron CSS Bay City.

    May 4, 2026Local reporting / county records

Procurement opportunities

2 tracked

  • Site civil & foundation work76
    Construction$7M62% procure
    Window closes Dec 31, 2026
  • Process equipment & automation66
    Services$8M52% procure
    Window closes Dec 31, 2026