TY  - RPRT
TI  - Metallurgical coal—Deposits, production, resources, market dynamics, and supply chain risks
AU  - Brian N. Shaffer
AU  - Elisa Alonso
AU  - Michelle N. Johnston
AU  - Scott A. Kinney
PY  - 2026
DO  - 10.3133/fs20263061
UR  - https://pubs.usgs.gov/publication/fs20263061
ID  - fs20263061
ER  -