Form SD - Specialized disclosure report:
SEC Accession No. 0001710366-25-000021
Filing Date
2025-09-17
Accepted
2025-09-17 14:37:16
Documents
13

Document Format Files

Seq Description Document Type Size
1 SD cnr-formsd2024.htm SD 17727
4 EX-99.1 ceix-20241231.htm EX-99.1 40331
  Complete submission text file 0001710366-25-000021.txt   176986

Data Files

Seq Description Document Type Size
2 XBRL INSTANCE DOCUMENT ceix-20241231.xml EX-2.01.INS 22137
3 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ceix-20241231.xsd EX-2.01.SCH 19302
Mailing Address 275 TECHNOLOGY DRIVE SUITE #101 CANONSBURG PA 15317
Business Address 275 TECHNOLOGY DRIVE SUITE #101 CANONSBURG PA 15317 724-416-8300
Core Natural Resources, Inc. (Filer) CIK: 0001710366 (see all company filings)

EIN.: 000000000 | State of Incorp.: DC | Fiscal Year End: 1231
Type: SD | Act: 34 | File No.: 001-38147 | Film No.: 251319664
SIC: 1220 Silver Ores
(CF Office: 01 Energy & Transportation)