Geo40 develops unique, innovative technologies for mineral recovery from underground fluids for deployment at scale in the global transition towards cleaner energy and greener critical minerals. Geo40 is piloting its lithium extraction technology on a wide variety of brines across North America.
Key features
- Operates the world’s first plant, in New Zealand, to commercially and sustainably recover nanoparticle colloidal silica products from geothermal fluid, at large scale with enhanced environmental credentials
- Emerging direct lithium extraction (DLE) technology, proven at lab and pilot scale and found to be applicable across a wide range of underground fluids globally
- Strategic focus is on low-to-medium grade lithium-bearing oilfield and formation waters of North America
- Vision Blue’s investment contributed to in-field DLE piloting across North America during 2024 and subsequent scale-up to demonstration scale
- Geo40 plans to prove its DLE technology in a methodical way, utilising the scale-up experience gained during the development of its silica recovery technology.
End uses
- Lithium is critical to emerging low-carbon transportation mobility, with key applications in lithium-ion batteries for grid storage, medical equipment, EVs and mobile devices
- Colloidal silica enhances functionality across an ever-growing range of products and applications including speciality catalysts, coatings, adhesives admixtures, paper and cement.

