Magnequench
| Type | Private |
|---|---|
| Industry | Advanced materials |
| Founded | 1986 |
| Defunct | August 31, 2005 |
| Fate | Sold by General Motors in 1995 to a consortium led by Sextant Group with Beijing San Huan New Material High-Tech and China National Non-Ferrous Metals |
| Successor | Neo Material Technologies |
| Headquarters | Anderson, Indiana, U.S. |
| Products | Neodymium–iron–boron magnets Magnetic powders |
| Parent | General Motors (1986–1995) |
Magnequench was an American manufacturer of neodymium magnets and magnetic materials based in Anderson, Indiana.[1][2]
It is often discussed in U.S. political debates over globalization and rare-earth supply chains after GM sold it in 1995 to a consortium involving Chinese investors and its Indiana operations were subsequently shifted overseas.[3][4][5] In 2005, Magnequench merged with AMR Technologies to form Neo Material Technologies.[6]
History
The origins of Magnequench lay in the early 1980s, when General Motors and Sumitomo Special Metals separately developed powerful neodymium-based permanent magnets.[7] Under the Magnequench name, GM opened a factory in Anderson, Indiana, in 1986.[8]
In 1995, GM sold Magnequench for US$70 million to Sextant Group, Beijing San Huan New Material High-Tech, and China National Non-Ferrous Metals.[9][8] It was part of GM's effort to divest non-core operations.[10][11]
After the sale, Magnequench expanded through acquisitions and overseas investment. It acquired other magnet producers, including GA Powders and UGIMAG's Valparaiso plant, while also building factories abroad[8] The company remained profitable for a time, but the market weakened in 2000 and Magnequench announced the closure of its Anderson plant.[8] Its Valparaiso, Indiana, facility was later shut as the company exited magnet manufacturing in Indiana.[5][12]
In 2005, Magnequench combined with Toronto-based AMR Technologies and the merged company became Neo Material Technologies.[6]
In 2012, Molycorp acquired Neo Material Technologies in a US$1.3 billion cash-and-share deal.[13][14]
Legacy
Magnequench became a recurring reference point in American debates over outsourcing, industrial policy, and dependence on Chinese rare-earth supply chains.[5][10] As of 2025, the United States still had no large domestic makers of neodymium magnets at the time MP Materials began trial production in Texas.[15]
References
- ↑ Clair, Jeffrey St (April 7, 2006). "The Saga of Magnequench".
- ↑ Meyer, Steve (March 29, 2015). "Magnets and Magnequench".
- ↑ "In Indiana, Clinton plays the China card". NBC News. April 29, 2008.
- ↑ Smith, Ben (May 4, 2008). "Clinton on Magnequench". POLITICO.
- 1 2 3 Freeman, Charles W. III (2009). "Remember the Magnequench: An Object Lesson in Globalization" (PDF). The Washington Quarterly. 32 (1): 61–76. Retrieved 6 April 2026.
- 1 2 "AMR Combines with Magnequench". Lexpert. Retrieved 6 April 2026.
- ↑ Spross, Jeff (April 6, 2018). "How China can win a trade war in 1 move". The Week.
- 1 2 3 4 Moberg, David (23 January 2004). "Magnet Consolidation Threatens Both U.S. Jobs and Security". In These Times. Retrieved 6 April 2026.
- ↑ "GM to sell Magnaquench". WardsAuto. 25 September 1995. Retrieved 6 April 2026.
- 1 2 Szczesny, Joseph (15 November 2023). "GM Back in Magnet Business, This Time for BEVs". WardsAuto. Retrieved 6 April 2026.
- ↑ "GM SHUTS ONE PLANT EARLY, SELLS ANOTHER". www.autonews.com.
- ↑ Erler, Susan (August 21, 2007). "Former Magnequench factory for sale".
- ↑ "Molycorp completes takeover of Neo-Material". Mining Engineering. 12 June 2012. Retrieved 6 April 2026.
- ↑ Areddy, James T. (March 11, 2012). "Deal Shows China's Rare-Earth Sway" – via www.wsj.com.
- ↑ Zorpette, Glenn (12 February 2025). "MP Materials Starts Producing Neodymium Magnets in the US". IEEE Spectrum. Retrieved 6 April 2026.