PMG Indiana will permanently shut down its Columbus manufacturing plant by December 31, laying off all 150 remaining workers in a shutdown that ends nearly four decades of auto parts production at the site. The company has filed a required Worker Adjustment and Retraining Notification with the state, confirming it will begin reducing its workforce starting November 1 before closing the plant for good.
The Indiana Department of Workforce Development officially registered the WARN notice on September 2, according to the Indiana Department of Workforce Development. As The Republic reports, the plant will reduce production before permanently closing, per the filing, with the shutdown wiping out a workforce that once numbered in the hundreds.
Located at 1751 Arcadia Drive, the 186,000-square-foot facility houses automated pressing and machining lines with compaction presses ranging from 200 to 1,200 tons, along with an on-site research and development engineering center, according to PMG. The plant designs and manufactures custom powder metal powertrain components and sub-assemblies for major North American automotive manufacturers and Tier-1 suppliers, including Stellantis, Hitachi, Valeo, Schaeffler, ZF, Exedy, and Hanon, per the same company materials. Those components are used in vehicle powertrain systems.
A Nearly 40-Year Run That Began With Japanese Investment
The Columbus factory has operated in the city since 1987, when it opened as Diamet Corporation, a subsidiary of Japan's Mitsubishi Materials.
In October 2007, the company consolidated its Midwest operations into Columbus by relocating its Dayton, Ohio production and research facilities to the Arcadia Drive site, per WTHR-TV. That expansion added 73 new jobs.
The plant later drew further investment, adding $23 million to the Columbus facility in 2014 when the workforce stood at 365 employees. In November 2019, Columbus City Council granted PMG a 10-year tax abatement, and the company invested $4.7 million in new manufacturing equipment that same month.
Workforce Shrank Nearly 60% Before Closure
Between 2014 and the 2026 closure filing, the Columbus facility's workforce shrank by nearly 59%, falling from 365 employees to the 150 workers on staff at the time of the shutdown notice, per the same account from The Republic. PMG Indiana operates as a subsidiary of Füssen, Germany-based PMG Holding GmbH, which employs roughly 1,700 workers globally across production facilities in Germany, Spain, China, and the United States, according to Inside INdiana Business.
The decline tracks a broader structural shift in the automotive supply chain. Global powder metallurgy market research from March 2026 projected sector growth to $7.68 billion by 2032, according to research distributed via PR Newswire. PMG's Columbus plant focuses on traditional internal combustion engine powertrain components.
Part of a Wider Wave of Indiana Plant Closures
PMG's filing appears alongside other Indiana industrial WARN notices in the state workforce agency's database. The database also includes other Indiana facility notices, including Forest River shuttering an Elkhart County plant cutting 105 jobs, according to the state workforce agency.
Displaced PMG employees may be eligible to receive state-funded employment transition and dislocated-worker training assistance through the Indiana Department of Workforce Development. The assistance may be available to eligible workers as the Columbus plant winds down operations over the coming months.
