First Tellurium Corp. engages in the acquisition, exploration, and evaluation of mineral properties in Canada and the United States. It primarily explores for silver, tellurium, gold, copper, tungsten, copper porphyry, bismuth, lead, zinc, and molybdenum. The company owns 50% interest owned Deer Horn Property covering an area of 5,133 hectares located in British Columbia. It has an option to acquire to acquire 100% interest in the Colorado Klondike property located in Colorado. The company was formerly known as Deer Horn Capital Inc. and changed its name to First Tellurium Corp. in 2021. First Tellurium Corp. was incorporated in 2004 and is headquartered in Delta, Canada.