NACCO Industries, Inc.®, through a portfolio of mining and natural resources businesses, operates under three business segmen ... ts: Coal Mining, North American Mining and Minerals Management. The Coal Mining segment operates surface coal mines under long-term contracts with power generation companies and an activated carbon producer pursuant to a service-based business model. The North American Mining segment provides value-added contract mining and other services for producers of aggregates, lithium and other minerals. The Minerals Management segment acquires and promotes the development of oil, gas and coal mineral interests, generating income primarily from royalty-based lease payments from third parties. In addition, the Company's Mitigation Resources of North America® business provides stream and wetland mitigation solutions. read more