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Core Natural Resources, Inc.

For the period ended Mar 31, 2026. Filed May 7, 2026.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2026 · Filed May 7, 2026

CNR$79.31+5.5%Stored close · as of Nov 6, 2026

What changed in Risk Factors?

Read the current filing

Previous report: 10-Q

Period ended 2025-09-30; filed 2025-11-06.

0001710366-25-000030

Item 1A. Risk Factors

Current report: 10-Q

Period ended 2026-03-31; filed 2026-05-07.

0001710366-26-000041

ITEM 1A. Risk Factors

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 6 previous paragraphs and 2 current paragraphs.

1 unchanged; 1 reworded; 0 added; 4 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 0 previous and 0 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Removed paragraphs (4)

Previous report

The U.S. Government shutdown could delay our ability to resume operations at the Leer South mine, which could have a material adverse impact on our results of operations, financial condition and cash flows.

Previous report

The Company has continued to work closely with federal and state officials on a plan to recover and reposition the longwall equipment at the Leer South mine and is currently waiting on approval of the plan by the federal Mine Safety and Health Administration. Due to the U.S. Government shutdown, approval by the Mine Safety and Health Administration has been delayed, and the timing of such approval is unclear. Our inability to resume operations at the Leer South mine as we anticipated could have a material adverse impact on our results of operations, financial condition and cash flows.

Previous report

New or existing tariffs and other trade measures could adversely affect our business, results of operations, financial condition and cash flows.

Previous report

New or existing tariffs and other trade measures could adversely affect our business, results of operations, financial condition and cash flows, either directly or indirectly through various adverse impacts on our significant customers. During the last several years, the U.S. Government imposed tariffs on steel and aluminum and a broad range of other products imported into the U.S. In response to the tariffs imposed by the U.S., the European Union, Canada, Mexico and China have announced tariffs on U.S. goods and services. These actions are unprecedented and have caused substantial uncertainty and volatility in financial markets. These tariffs, along with any additional tariffs or trade restrictions that may be implemented by the U.S. or retaliatory trade measures or tariffs implemented by other countries, could result in reduced economic activity, increased costs in operating our business, reduced demand and changes in purchasing behaviors for thermal and metallurgical coal, limits on trade with the U.S. or other potentially adverse economic outcomes. Changes in tariffs and trade restrictions can be announced with little or no advance notice. The adoption and expansion of tariffs or other trade restrictions, increasing trade tensions, or other changes in governmental policies related to taxes, tariffs, trade agreements or policies, are difficult to predict, which makes attendant risks difficult to anticipate and mitigate. If we are unable to navigate further changes in U.S. or international trade policy, it could have a material adverse impact on our business and results of operations. Additionally, we sell coal into the export thermal market and the export metallurgical market. Accordingly, our international sales may also be impacted by the tariffs and other restrictions on trade between the U.S. and other countries. We cannot predict further developments, and such existing or future tariffs could have a material adverse effect on our business, results of operations, financial condition and cash flows.
Reworded paragraphs (1)

Previous wording

In addition to the other information set forth in this quarterly report, including the risk factors set forth below, you should carefully consider the factors described in “Part 1 - Item 1A. Risk Factors” of the Company's Annual Report on Form 10-K for the year ended December 31, 2024, as updated by any subsequent Quarterly Reports on Form 10-Q. These described risks are not the only risks the Company faces. Additional risks and uncertainties not currently known to Core or that the Company currently deems to be immaterial also may materially adversely affect Core's business, results of operations, financial condition and cash flows.

Current wording

In addition to the other information set forth in this Report, you should carefully consider the factors described in Part I - Item 1A. “Risk Factors” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2025. These described risks are not the only risks the Company faces. Additional risks and uncertainties not currently known to Core or that the Company currently deems to be immaterial also may materially adversely affect Core’s business, results of operations, financial condition and cash flows.