NioCorp Developments Ltd. is a mineral exploration company engaged in the acquisition, exploration, and development of mineral properties. The Company operates in one segment consisting of exploration and development of mineral deposits in North America, specifically, the Elk Creek niobium/scandium/titanium property (the Elk Creek Project) located in Southeastern Nebraska. The Company's Elk Creek Property is a niobium, scandium, and titanium exploration project. The Elk Creek Property is a carbonatite deposit located in Johnson County, southeast Nebraska, United States. The carbonatite contains elements including niobium, titanium, and scandium, as well as rare earth products. The Elk Creek Property is approximately 45 miles southeast of Lincoln, Nebraska, the state capital of Nebraska. The Company owns one 226.43-acre parcel of land and associated mineral rights, and an additional 40 acres of mineral rights, within the carbonatite footprint.