Exhibit 21.1
Subsidiaries
| Name | State of Incorporation | |
| CLV Azurite Land, LLC | Ohio | |
Collins Building & Contracting, Inc. Graphium Biosciences, Inc. (sold) |
West Virginia Nevada | |
| Range Environmental Resources, Inc. | West Virginia | |
Range Land, LLC Range Minerals, LLC Range Natural Resources, Inc. |
Ohio Ohio West Virginia | |
Range Reclaim, LLC Range Rock Creek Land, LLC Range Security, LLC Range Security Resources, LLC |
Ohio Ohio Ohio Ohio | |
Range Sky View Land, LLC Range Water, LLC Terra Preta, LLC |
Ohio Ohio Ohio |