Alpha Metallurgical details MSHA safety order

Alpha Metallurgical Resources, Inc. reports that its indirect subsidiary Spartan Mining Co., LLC received an imminent danger order from the Mine Safety and Health Administration at the Road Fork #52 mine near Pineville, West Virginia.

Rhea-AI Filing Summary

Alpha Metallurgical Resources, Inc. reports that its indirect subsidiary Spartan Mining Co., LLC received an imminent danger order from the Mine Safety and Health Administration at the Road Fork #52 mine near Pineville, West Virginia. Inspectors detected an accumulation of methane in a cross-cut adjacent to an outby belt entry in a limited high area of the mine roof.

The belt was immediately shut down and ventilation controls were adjusted to remove the methane. The company states that no injuries or property damage occurred, and the order was terminated immediately after these corrective actions were completed.

8-K Event Classification

Item 1.04 — Mine Safety - Reporting of Shutdowns and Patterns of Violations

1 item

Item 1.04 Mine Safety - Reporting of Shutdowns and Patterns of Violations Business

Mine safety violations, closure orders, or patterns of safety issues at mining operations.

Key Terms

imminent danger order, Mine Safety and Health Administration, section 107(a), Federal Mine Safety and Health Act of 1977, +1 more

5 terms

imminent danger order regulatory

"received an imminent danger order issued by the Mine Safety and Health Administration"

Mine Safety and Health Administration regulatory

"received an imminent danger order issued by the Mine Safety and Health Administration"

The Mine Safety and Health Administration (MSHA) is a U.S. federal agency that sets and enforces safety and health standards for mining operations, conducts inspections, investigates accidents, and issues citations or fines. Its actions matter to investors because safety rules, enforcement actions, or accident findings can increase operating costs, interrupt production, create legal and cleanup liabilities, and damage a miner’s reputation—similar to how building inspections or traffic enforcement affect a company’s ability to operate smoothly.

section 107(a) regulatory

"issued by the Mine Safety and Health Administration (“MSHA”) under section 107(a) of the Federal Mine Safety and Health Act of 1977"

Federal Mine Safety and Health Act of 1977 regulatory

"under section 107(a) of the Federal Mine Safety and Health Act of 1977"

ventilation controls technical

"The belt was immediately shut down and adjustments were made to the ventilation controls to eliminate the accumulation."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What mine safety issue did Alpha Metallurgical Resources (AMR) disclose?

Alpha Metallurgical Resources disclosed that Spartan Mining received an MSHA imminent danger order at the Road Fork #52 mine due to a methane accumulation. The condition was addressed through shutting down a belt and adjusting ventilation to remove the methane.

Where did the MSHA imminent danger order occur for Alpha Metallurgical Resources (AMR)?

The imminent danger order was issued at the Road Fork #52 mine near Pineville, West Virginia, operated by Spartan Mining, an indirect subsidiary of Alpha Metallurgical Resources. The issue involved methane detected in a cross-cut near an outby belt entry.

Were there any injuries or property damage reported by Alpha Metallurgical Resources (AMR)?

No injuries or property damage were reported in connection with the methane accumulation at the Road Fork #52 mine. After shutting down the belt and adjusting ventilation controls, the safety order was terminated once conditions were corrected.

How did Alpha Metallurgical Resources (AMR) respond to the MSHA order?

The company reports that the affected belt was immediately shut down and ventilation controls were adjusted to eliminate the methane accumulation. After these corrective measures, the Mine Safety and Health Administration terminated the imminent danger order at the site.

Which Alpha Metallurgical Resources (AMR) subsidiary received the MSHA imminent danger order?

Spartan Mining Co., LLC, an indirect subsidiary of Alpha Metallurgical Resources, received the imminent danger order from the Mine Safety and Health Administration. The order related to methane accumulation in a limited high area of the mine roof at Road Fork #52.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/15/2026 - 04:15 PM Learn about SEC filing dates

false000170471500017047152026-05-142026-05-14

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

_______________

FORM 8-K

 CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): May 14, 2026

 ALPHA METALLURGICAL RESOURCES, INC.

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation) 

001-38735			81-3015061
(Commission File Number)			(I.R.S. Employer Identification No.)

340 Martin Luther King Jr. Blvd.

Bristol, Tennessee 37620

(Address of principal executive offices, zip code)

(423) 573-0300

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class			Trading Symbol(s)			Name of each exchange on which registered
Common Stock			AMR			New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company      ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨ 

TABLE OF CONTENTS

Item 1.04 Mine Safety - Reporting of Shutdowns and Patterns of Violations

Signatures

Item 1.04 Mine Safety - Reporting of Shutdowns and Patterns of Violations.

On May 14, 2026, Spartan Mining Co., LLC (“Spartan”), an indirect subsidiary of Alpha Metallurgical Resources, Inc., received an imminent danger order issued by the Mine Safety and Health Administration (“MSHA”) under section 107(a) of the Federal Mine Safety and Health Act of 1977. The order was issued at the Road Fork #52 mine (the “Mine”) near Pineville, West Virginia.

The order stated that an accumulation of methane was detected in a cross-cut adjacent to an outby belt entry in a limited high area of the Mine roof. The belt was immediately shut down and adjustments were made to the ventilation controls to eliminate the accumulation. No injuries or property damage occurred in connection with the stated conditions. Immediately after the above actions were completed, the order was terminated.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

			Alpha Metallurgical Resources, Inc.
Date: May 15, 2026			By:			/s/ J. Todd Munsey
						Name: J. Todd Munsey
						Title: Chief Financial Officer

Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 1.8 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 21.1 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 12.2 KB