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INDIVIDUAL FACILITIES AND SELECTED SOURCES
Below is basic information about individual facilities in our database and selected sources we've drawn on to support the analysis.  To navigate to other sites, use the search page.

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SK Siltron CSS Bay City Factory (Expansion)

SK Siltron CSS

Bay City, MI, USA

-83.9995001308367, 43.5959347693403

The Big Green Machine Site ID: 531

Additional Information:

Sector: EVs

Activity: Manufacturing

Product: EV Parts


Project Announcement Date: 8/26/2021

Target for Starting Production: 2027

Date Commercial Production Started:

Announced Post Inflation Reduction Act: No


Operating Status: Planned


Target Jobs: 450

Current Jobs: 250

Capital Investment: $544 million

Congressional District: MI8

Government Subsidies:

Local/State: $1.5 million


Federal:

Advanced Technology Manufacturing Loan: $544 million

Selected Sources:


“Semiconductor wafer manufacturer SK Siltron to invest over $300M in Bay County facility”, Caitlyn French | cfrench@mlive.com, mlive, 25 Aug 2021. 🔗


“SK Siltron CSS Secures Conditional Commitment from U.S. Department of Energy for a Loan of up to $544 million”, SK siltron css, 22 Feb 2024. 🔗


“DOE plans $710M in loans to boost EV supply chain”, Brian Dabbs, E&E News by POLITICO, 23 Feb 2024. 🔗


Tracked Expansions, Acquisitions, or Related Sites:

We currently have no related projects tracked for this site.

This website, dashboard, and dataset are maintained by Jay Turner and student researchers in the Environmental Studies Department at Wellesley College. It is updated at least monthly. The data presented are compiled from publicly available sources. Summary statistics are incomplete and omit data from sites where publicly available information (regarding capital investments, employment levels, etc.) is unavailable. While we make every effort to ensure the information presented here is accurate, the information should be treated as estimates. We assume no responsibility or liability for any errors or omissions. The information contained in this site is provided on an "as is" basis with no guarantees of completeness, accuracy, or usefulness. The Big Green Machine® is a registered trademark. Please submit feedback using this formData on this site last updated on April 19, 2025. 

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