Iron Mountain Foundry (formerly Grede LLC – Iron Mountain)
Large load · 801 S. CARPENTER AVE., Kingsford, MI
Iron Mountain Foundry, formerly Grede LLC – Iron Mountain, is a gray iron foundry at 801 South Carpenter Avenue in Kingsford, Dickinson County, Michigan. It produces specialty iron castings used for industrial machinery and agricultural equipment and holds molten iron in a 28-ton electric holding furnace. TRM Equity II completed the acquisition of the Iron Mountain Foundry assets from Grede Holdings LLC on November 28, 2025.
Overview
The foundry produces specialty iron castings used for industrial machinery and agricultural equipment. It operates a main foundry and a module foundry in the same building. The cupola has a charge limit of 450 tons per day and 164,250 tons per year. In 2023 the 12-month rolling sum was 30,508 tons, with the plant running one shift per day where it historically ran up to three.
Profile
- Electricity and grid
- Molten iron is stored in a 28-ton capacity electric holding furnace. Upper Michigan Energy Resources Corporation lists Kingsford among the cities and villages in its WEPCO rate zone territory.
- Ownership
- TRM Equity II completed the acquisition of Browntown Foundry and Iron Mountain Foundry assets from Grede Holdings LLC on November 28, 2025. The acquired foundries are leading providers of gray and ductile iron castings up to 1,000 lbs.
- Permits
- The site operates under Renewable Operating Permit MI-ROP-B1577-2020, which carries an expiration date of October 8, 2025, and Permit to Install 28-22 issued March 23, 2022. A compliance evaluation for June 10, 2023 through June 10, 2024 found the facility in compliance with MI-ROP-B1577-2020.
Facility
- Activity
- Gray iron foundry producing specialty iron castings
- Industry
- Manufacturing
- Site type
- Facility
- Operating status
- Operating
Reported Jun 10, 2024
Permits and agreements
- Permit
- MI-ROP-B1577-2020
- Permit
- Permit to Install 28-22
Related records
Timeline
- Nov 28, 2025
- TRM Equity II completed the acquisition of the Iron Mountain Foundry assets from Grede Holdings LLC.
TRM Equity Acquires Production Facilities from Grede Holdings LLC