Natural Resource Partners owns, operates, manages, and leases mineral properties. The Company operates through three segments: Coal Royalty and Other, Soda Ash, and VantaCore. It owns interests in coal, trona and soda ash, construction aggregates, and other natural resources. The Company also operates four limestone quarries, one underground limestone mine, five sand and gravel plants, two asphalt plants, and two marine terminals. It leases coal reserves, aggregates and industrial minerals reserves in exchange for royalty payments, and leases transportation and processing infrastructure related to coal and aggregates properties.