Artesian Brine Flow From Depth To Surface At Green River Project Identified

Anson Resources Limited (ASX: ASN, ASNOC, ASNOD) (Anson or the Company) is pleased to announce the discovery of artesian brine flow from depth to surface at the Green River Lithium Project, in the Paradox Basin in south-eastern Utah, USA, see Figure 1.

Highlights:

• A review of the Green River Lithium Project has confirmed its highly positive geological features which are structurally similar to Anson’s flagship Paradox Lithium Project
• Numerous salt-water geysers and springs are located within a 15km wide and 16km long geological feature known as the Ten Mile Graben at the Green River Project
• These are indicative of extreme fracturing and increased porosity of the host rock units – and indicate the potential for artesian flow of brines from depth to surface with potentially no need for pumping
• This is structurally similar to the “Roberts Rupture” at the Paradox Project, which has demonstrated artesian flow of brine to surface - artesian brine flow will deliver a positive ESG impact for Anson's Paradox Basin lithium projects

Figure 1: Bubbling geyser near the Mt Fuel-Skyline Geyser 1-25 well.

A review of research and surveys of the Green River Project area conducted by Anson has highlighted the presence of numerous saltwater geysers and springs, indicative of extreme fracturing and increased porosity of the host rock units, within a 15km wide and 16km long geological feature known as the Ten Mile Graben – and, also in close proximity to the Green River Anticline (see Figure 2).

In addition, drilling records from the area show that the pressures are similar to those at Anson’s nearby core asset, the Paradox Lithium Project. In conjunction with the indicative increased porosity of the deeper rock units, this creates a unique advantageous situation at the Green River Project, which has potential to reduce extraction costs of the lithium-rich brines, as mechanical pumping may not be required – which in-turn would deliver a positive ESG impact at the Project.

Figure 2: Plan showing the location of the Ten Mile Graben geysers, springs & other geological features.

Background and Commentary

Research at the Green River Project area shows that red iron-rich sandstones have been bleached over time, and the iron redeposited on the surface, see Figure 1. This has been caused by reducing fluids flowing through the rock units, which contain carbon dioxide, hydrocarbons, and hydrogen sulphide from the Pennsylvanian and Mississippian units¹.

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