NOA Lithium Brines Inc. provided an update on the progress of the Phase 1 diamond drill program at its Rio Grande project ("Rio Grande" or the "Project"). Drilling on the third hole, RG23-003, located at the Cristina claim on the surface salar was completed to a depth of 659 meters ("m") and full laboratory results are expected in the coming weeks. Preliminary highlights of the third hole include: Lithium brine-saturated geological units (" units") starting at approximately 15 m below surface.

More than 500 meters of lithium brine-bearing units (48 total packer tests thus far). Believed to be the deepest reported occurrence of permeable brines at Rio Grande. Preliminary results confirm lithium content in the brine all along the depth of the well, with lab geochemical analyses in progress.

Hole RG23-003 was executed with diamond drilling (HQ-size), permitting the extraction of core samples of the salar basin formations and collection of brine samples where possible. Drilling was carried out by Salta-based Hidrotec S.A., under the supervision of NOA's geologists. The lithological profile of the third hole is in-line with other drillholes at the Project.

Almost the entire depth of the +600 m hole returned brine-saturated units based on packer testing, except for a few horizons of 10-30 m thickness. In general, halite and interstitial sands were the dominant lithologies, with amounts of each varying along the depth. Brine packer samples have been sent for laboratory analyses, including multi-element geochemical analysis for lithium and other relevant elements, and results are expected in the coming week.

Selected drill core samples will be sent to an accredited laboratory for physical property tests, including drainable porosity. The Phase 1 drill program is planned for six holes and is designed to deliver a maiden mineral resource estimate for the Rio Grande project in early 2024. The location of RG23-003 is shown in Figure 1 and its drill collar information is provided in Table 2 below.

Hole #: RG23-003 Azimuth: 0 deg. claim name: Cristina Inclination: -90 deg. Coordinates (UTM 19J South): E: 582411 m Contractor: Hidrotec S. A. N: 7226470 m, Z: 3702 m Machine type: HT07 LF-90 Drill type: Diamond Hole diameter: HQ.