Premier1 Lithium Limited engages in mineral exploration activities in Western Australia. It primarily explores gold and copper deposits. The company’s flagship project is the Yalgoo Gold Project which covers an area of 220 square kilometers located in the northern Yalgoo–Singleton Greenstone Belt. The company was formerly known as SensOre Ltd and changed its name to Premier1 Lithium Limited in February 2024. Premier1 Lithium Limited was incorporated in 2019 and is based in Perth, Australia.