Glenstar Minerals Inc. engages in the acquisition and exploration of mineral properties in the United States. The company explores for nickel, cobalt, zinc, silver, lead, uranium, rare earth elements, and copper deposits. It holds interest in the Green Monster property located in Clark County, Nevada. The company was formerly known as Glenstar Ventures Inc. and changed its name to Glenstar Minerals Inc. in April 2025. Glenstar Ventures Inc. was incorporated in 2020 and is headquartered in Vancouver, Canada.