Neo Performance Materials
Corporate brand
UnclaimedNeo Performance Materials is a Canadian producer of rare-earth materials, magnetic materials, and other specialty components used in industrial and green-energy technologies.
Last updated August 31, 2026
Overview
Neo Performance Materials is a Canadian specialty-materials company headquartered in Toronto, Ontario. Its activities are rooted in the rare-earth mining and processing business formerly conducted by Molycorp, the company associated with the Mountain Pass rare-earth mine in California. Following Molycorp’s bankruptcy in 2015, its largest creditor, Oaktree Capital Management, acquired the reorganized business and established Neo Performance Materials as the successor operating company. The company’s corporate lineage reaches back to 1919, when the Molybdenum Corporation of America began mining molybdenum in New Mexico. That business later acquired the Mountain Pass claims in California in 1950 and started production there in 1952. The company adopted the Molycorp name in 1974, passed through Union Oil and Chevron ownership, and ultimately became an independent enterprise again after Chevron Mining sold the Mountain Pass operation and rights to the Molycorp name in 2008. Molycorp became publicly traded on the New York Stock Exchange in 2010 under the ticker MCP. It expanded beyond mining through the acquisition of Silmet in Estonia and the purchase of Neo Material Technologies in Canada in 2012. The Neo Material transaction brought businesses involved in rare-earth separation, magnetic powders, and other advanced materials into the group. These operations gave the company a broader position across the rare-earth value chain rather than limiting it to mine production. The Molycorp business encountered severe financial and competitive pressure during the first half of the 2010s. Rare-earth prices declined, Chinese producers remained dominant, and the company faced substantial capital requirements associated with its mining and processing strategy. Oaktree provided restructuring finance in 2014, but Molycorp filed for bankruptcy protection in June 2015 while seeking to restructure approximately $1.70 billion of debt. The Mountain Pass mine was separated from the reorganized business and subsequently pursued a separate sale process. Neo Performance Materials focuses on processed rare-earth and specialty materials rather than operating Mountain Pass as its principal asset. Its business has included rare-earth separation, magnetic materials, and components used in technologies associated with energy efficiency, electrification, electronics, and environmental sustainability. Manufacturing and processing activities have been located in North America, Europe, and Asia, including facilities in China and Estonia. In September 2024, the company announced the sale of its rare-earth separation plant in Jiangyin, China, representing a change in its operating footprint. The company’s historical development illustrates the risks of vertically integrated rare-earth strategies. Its legacy includes mining, refining, separation, and downstream materials production, while its post-bankruptcy identity emphasizes specialty materials and industrial applications. Neo Performance Materials remains an internationally oriented business, but detailed current ownership, financial, executive, and facility information is not established in the supplied reference material.
History
Neo Performance Materials developed from a long sequence of mining, processing, and specialty-materials businesses. Its oldest cited roots extend to 1919, when the Molybdenum Corporation of America, a subsidiary of the Electric Reduction Company, began mining molybdenum at Questa in New Mexico. In 1950, the company purchased mining claims at Mountain Pass, California, and began production there in 1952. Mountain Pass later became one of the most important rare-earth deposits in the United States. The business adopted the Molycorp name in 1974. Union Oil acquired it in 1977, and Union Oil subsequently became part of Chevron. In 2005, Chevron inherited the operation through that corporate lineage. Molycorp was merged with the Pittsburg & Midway Coal Company in 2007 to create Chevron Mining Inc. Chevron then sold the Mountain Pass rare-earth mine and rights to the Molycorp name in 2008 to Rare Earth Acquisitions LLC, a special-purpose company backed by several investment and trading groups. That entity was renamed Molycorp Minerals LLC. Molycorp, Inc. was created as the new parent company and entered the public markets in July 2010. Its initial public offering raised capital through the sale of 28.125 million shares at $14 per share, and the company traded on the New York Stock Exchange under MCP. The public-company phase was built around the expectation that renewed production at Mountain Pass could support a non-Chinese rare-earth supply chain. The mine, which had closed in 2002, reopened in 2010. The company also pursued downstream and international expansion. In 2011, Molycorp acquired 90 percent of Silmet, an Estonian rare-earth processing company, for approximately $89 million and purchased the remaining 10 percent later that year. The Silmet operation was renamed Molycorp Silmet and was described as one of the few rare-earth processing facilities outside China. Molycorp also signed supply arrangements with Japanese companies Sumitomo and Mitsubishi and with W. R. Grace, which intended to use lanthanum and cerium in fluid catalytic cracking catalysts. In June 2012, Molycorp acquired Neo Material Technologies, a Canadian company created through the combination of Magnequench and AMR Technologies. Magnequench had originated at General Motors in 1986 and manufactured neodymium-iron-boron magnetic materials. This acquisition broadened Molycorp’s exposure from mining and primary rare-earth production into separation, magnetic powders, and other downstream materials. It also supplied the historical basis for the Neo name used after the later reorganization. Molycorp’s expansion occurred in a difficult market. The company faced competition from China, declining rare-earth prices, and substantial capital needs associated with its mining and processing plans. In November 2012, it disclosed an SEC investigation concerning the accuracy of its public disclosures. In June 2013, the company said that the investigation had ended without an enforcement recommendation. In 2014, Oaktree Capital Group won a process to provide up to $400 million in senior restructuring finance. The financing did not prevent a broader insolvency process. In late June 2015, Molycorp filed for bankruptcy protection and announced an agreement with major creditors to restructure debt reported at approximately $1.70 billion. Oaktree, the company’s largest creditor, acquired the reorganized business. The successor was renamed Neo Performance Materials, while Mountain Pass was separated from the reorganized company and prepared for a separate sale process. The post-bankruptcy business has been centered on specialty materials and rare-earth processing rather than ownership of Mountain Pass. Neo Performance Materials has operated internationally, with facilities and activities in North America, Europe, and Asia. Its cited operations include a rare-earth separation plant in Jiangyin, China, and a processing facility in Sillamäe, Estonia. In September 2024, the company announced the sale of the Jiangyin plant. The resulting company is best understood as a global supplier of processed rare-earth and magnetic materials used in industrial, electronic, energy-efficiency, and environmental applications.
- 2024
Jiangyin plant sale announced
[1]Neo Performance Materials announced the sale of its rare-earth separation plant in Jiangyin, China.
- 2015
Bankruptcy and reorganization
[1]Molycorp entered bankruptcy protection and was reorganized under the Neo Performance Materials name.
- 2012
Neo Material Technologies is acquired
[1]The acquisition added downstream rare-earth and magnetic-material capabilities.
- 2011
Silmet is acquired
[1]Molycorp acquired Silmet in Estonia, building its rare-earth processing presence outside China.
- 2010
Molycorp goes public and reopens Mountain Pass
[1]Molycorp completed its NYSE initial public offering and Mountain Pass resumed operations after its earlier closure.
- 2008
Mountain Pass leaves Chevron ownership
[1]Chevron Mining sold the mine and rights to the Molycorp name to Rare Earth Acquisitions LLC.
- 2002
Mountain Pass mine closes
[1]The Mountain Pass mine ceased operations before its later reopening.
- 1977
Union Oil acquires Molycorp
[1]Molycorp was acquired by Union Oil, beginning a period of ownership that later connected the business to Chevron.
- 1974
The Molycorp name is adopted
[1]The predecessor mining business changed its name to Molycorp.
- 1952
Mountain Pass production begins
[1]Production commenced at the Mountain Pass rare-earth mine.
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Products and positioning
A global specialty-materials supplier serving the rare-earth, magnet, electronics, industrial catalyst, and energy-transition value chains.
Rare-earth processing
Rare-earth separated materials
Neo Performance Materials has operated separation and processing facilities that convert rare-earth feedstocks into refined or separated materials for industrial customers. These materials support downstream applications in catalysts, magnets, electronics, energy systems, and other technologies requiring specific rare-earth elements. The company’s historical network included operations in China and Estonia, although the announced 2024 sale of the Jiangyin plant changed its facility portfolio.
Magnetic materials
Neodymium-iron-boron magnetic materials
Through the Neo Material Technologies acquisition and the historical Magnequench business, the group gained expertise in neodymium-iron-boron magnetic powders and related materials. These inputs are used by manufacturers of permanent magnets and components for motors, electronics, automotive systems, and other applications where compact, high-performance magnetic properties are required.
Industrial rare-earth materials
Lanthanum and cerium materials
The historical Molycorp business supplied lanthanum and cerium materials to industrial customers, including materials intended for fluid catalytic cracking catalysts. These elements are used in refining and other industrial processes. The cited supply agreement with W. R. Grace extended through 2015, but current product availability is not established in the supplied references.
Brand decisions
2024
Sale of Jiangyin rare-earth separation plantM&ABackground
Neo Performance Materials reviewed its international operating footprint after the company’s transition from the former Molycorp structure.
Action taken
The company announced the sale of its rare-earth separation plant in Jiangyin, China.
Aftermath
The transaction reduced or changed the company’s direct processing presence in China; details of the buyer and financial terms are not provided in the supplied reference.
2015
Post-bankruptcy reorganization as Neo Performance MaterialsStrategyBackground
Molycorp filed for bankruptcy protection after declining prices and competitive pressure impaired its mining-centered business model.
Action taken
Oaktree acquired the reorganized company, which adopted the Neo Performance Materials name, while Mountain Pass was separated from the business.
Aftermath
The successor focused on specialty materials and processing rather than retaining Mountain Pass as its principal asset.
Debt subject to restructuring. Approximately $1.70 billion (2015)
2014
Restructuring finance arranged with OaktreeStrategyBackground
Molycorp faced declining rare-earth prices, strong competition from China, and significant capital requirements.
Action taken
Oaktree Capital Group was selected to provide up to $400 million in senior restructuring finance.
Aftermath
The financing preceded Molycorp’s 2015 bankruptcy filing and Oaktree’s subsequent acquisition of the reorganized business.
Senior restructuring finance. Up to $400 million arranged (2014)
2012
Acquisition of Neo Material TechnologiesM&ABackground
Molycorp sought to expand beyond mining and primary rare-earth production into downstream materials and magnetic technologies.
Action taken
Molycorp acquired Neo Material Technologies, bringing the historical Magnequench and AMR Technologies businesses into the group.
Aftermath
The transaction broadened the company’s international processing and specialty-materials platform and later influenced the name of the reorganized successor.
Recent events
- 2024
Neo Performance Materials announces sale of Jiangyin separation plant[1]
M&A
Neo Performance Materials announced the sale of its rare-earth separation plant in Jiangyin, China, changing the company’s Asian processing footprint.
- 2024
Neo Performance Materials announces sale of Jiangyin plant[1]
M&A
Neo Performance Materials announced the sale of its rare-earth separations plant in Jiangyin, China.
- 2015
Molycorp files for bankruptcy protection[1]
Bankruptcy
Molycorp sought bankruptcy protection in June 2015 amid falling output prices, competition from China, and the financial consequences of its restructuring. The company announced an agreement with major creditors to reorganize approximately $1.70 billion of debt.
- 2015
Molycorp is reorganized as Neo Performance Materials[1]
M&A · Leadership change
Oaktree Capital Management, Molycorp’s largest creditor, acquired the reorganized business, which adopted the Neo Performance Materials name. The Mountain Pass mining asset was separated from the successor company.
- 2014
Oaktree provides restructuring finance to Molycorp[1]
Other
As rare-earth prices weakened and the company faced heavy capital requirements, Oaktree Capital Group won a bidding process to provide up to $400 million in senior restructuring finance.
- 2014
Molycorp enters restructuring financing[1]
Other
Oaktree Capital Group won the bidding to provide up to $400 million in senior restructuring financing as Molycorp faced high capital needs and weaker rare-earth prices.
- 2013
SEC investigation into Molycorp disclosures is closed[1]
Regulation
Molycorp disclosed that the U.S. Securities and Exchange Commission had completed an investigation into the accuracy of the company’s public disclosures and had not recommended enforcement action.
- 2013
SEC investigation into Molycorp disclosures concludes[1]
Regulation · Other
Molycorp disclosed that the U.S. Securities and Exchange Commission had completed an investigation concerning the accuracy of the company's public disclosures and had not recommended enforcement action.
- 2012
Molycorp acquires Neo Material Technologies[1]
M&A
Molycorp acquired Canadian-based Neo Material Technologies, adding magnetic-materials and rare-earth processing operations, including the business historically associated with Magnequench.
- 2011
Molycorp expands into European rare-earth processing through Silmet acquisition[1]
M&A
Molycorp acquired a majority stake in Silmet in Estonia and later acquired the remaining interest, giving the company a significant rare-earth processing operation outside China.
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Sources1 sources
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