Core Natural Resources files amendment to include Arch financials in 8-K

Core Natural Resources, Inc.

Amendment adds audited Arch financials for 2023, 2022, 2021 and unaudited 2024 nine-month period.
Includes pro forma combined financials as of Sept 30, 2024 and for year ended Dec 31, 2023.
No new material changes; original 8-K merger close on Jan 14, 2025 unchanged.

item 9.01

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accession 0001193125-25-028132

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