American Tungsten & Antimony (AT4, formerly Trigg Minerals) is a Perth-based ASX-listed exploration and development company focused on brine-hosted fertiliser minerals that are critical for the production of high-nutrient food sources.
The company owns 100% of the Lake Throssell, Lake Yeo and Lake Rason Projects near Laverton in Western Australia.
The company listed on the ASX in October 2019, and changed its name from Trigg Mining to Trigg Minerals in August 2022. The company changed its name from Trigg Minerals to American Tungsten & Antimony in 2025.
