SEC filings · customer concentration · AMR

Who depends on Alpha Metallurgical Resources

1 listed supplier reports Alpha Metallurgical Resources as a customer worth 10% or more of their revenue, led by Natural Resource Partners at 26%.

0major customers now
—of revenue from them
1listed suppliers depending on it
2020–2026years covered
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Suppliers that depend on Alpha Metallurgical Resources

Listed companies whose annual report names Alpha Metallurgical Resources as a customer worth 10% or more of their revenue. If Alpha Metallurgical Resources cuts orders or switches supplier, these are the companies that feel it.

SupplierIts revenue from this companyChange vs prior yearHistoryLatest filing
Natural Resource PartnersNRP26%from 28%FY 2020: 24%FY 2021: 23%FY 2022: 26%FY 2023: 23%FY 2024: 28%FY 2025: 26%6 yearsFY 2025 · filed 27 Feb 2026

About this data

US-listed companies must disclose revenue from any single customer that reaches 10% of their total (ASC 280). ShadowGraph reads these disclosures from the XBRL data of every 10-K and 20-F we scan, keeps one value per fiscal year (restatements replace earlier values) and links each number to its filing. Companies that describe a customer only as "Customer A" are not listed by name. Figures are as reported; nothing here is investment advice.

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