First Tellurium Corp. engages in the acquisition, exploration, and evaluation of mineral properties in Canada. It primarily explores for silver, tellurium, gold, copper, tungsten, copper porphyry, bismuth, lead, zinc, and molybdenum. The company's flagship property is the 50% interest owned Deer Horn Property covering an area of 5,133 hectares located in British Columbia. 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.