The U.S. Geological Survey (USGS) is exploring the potential of extracting lithium from geothermal brines – the hot fluids used to power geothermal plants. Recent studies indicate lithium can be recovered from these brines, as well as from oil and gas sources. This technology could be applicable to Papua New Guinea (PNG), specifically at its Wafi-Golpu and Lihir sites, offering a new avenue for critical mineral resource development. The findings suggest a potential for PNG to tap into a novel source of lithium, a key component in batteries and other technologies. The research focuses on utilizing what is currently considered waste product from geothermal energy production. Further investigation is needed to determine the feasibility and economic viability of lithium extraction in PNG using this method. The report was published by Post Courier, but access requires a subscription.