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Neo Performance Materials

American mining corporation

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 30, 2026
Entity authorityQ2325665
Source-derived summary

Neo Performance Materials (formerly Molycorp Inc.) is a Canadian mining corporation headquartered in Toronto, Ontario. The corporation was formerly traded on the New York Stock Exchange, owned the Mountain Pass rare earth mine in California. Molycorp filed for bankruptcy in June 2015 amid changing competitive circumstances, declining prices and a 2014 restructuring. It was purchased by its largest creditor Oaktree Capital Management and was reorganized as Neo Performance Materials.

History

Molycorp Inc.

Roots of the company dated back to 1919 when the Molybdenum Corporation of America, established as a subsidiary of the Electric Reduction Company, started molybdenum ore mining at Questa, New Mexico.

In 1950, the Molybdenum Corporation of America bought the Mountain Pass mining claims, and began production in 1952. It changed its name to Molycorp in 1974. The corporation was acquired by Union Oil in 1977, which in turn became part of Chevron Corporation in 2005. In 2007, Molycorp Inc.

Editorial summary

The public source identifies “Neo Performance Materials” as american mining corporation. This brief keeps that definition visible, then builds a research path around Performance, Materials and American.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2015, 2014, 1919, 1950—that can be checked directly. The linked authority record independently contributes the date 2010. Its value is orientation rather than verdict, with Performance, Materials and American providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Neo Performance Materials”, the useful work is to connect “american mining corporation” to the records capable of establishing context and consequence.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated May 30, 2026. The linked authority identifier is Q2325665. None of the 2 selected statements returned an explicit reference. The first chronological checks are 2015, 2014, 1919 and 1950.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Neo Performance Materials”, its source revision and the description used here.
  2. Expand the search: follow Neo Performance Materials primary sources, Neo Performance Materials archive and Performance research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Neo Performance Materials”?
  2. Which cited source is closest to the event, object or claim?
  3. Which institution is responsible for the underlying evidence?
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Source & attribution

This entry incorporates text from Neo Performance Materials” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.