NOA Lithium Reports Average 651 Milligrams Per Litre at Rio Grande Well
NOA Lithium Brines reported an average lithium concentration of 651 milligrams per litre from 8 brine samples pumped during tests at well RT-RG26-PW002 in Salta Province, Argentina.
NOA Lithium Brines Inc. (TSXV:NOAL)(Frankfurt:N7N) reported an average lithium concentration of 651 milligrams per litre from 8 brine samples collected during pumping tests at well RT-RG26-PW002 at its Rio Grande Project in Salta Province, Argentina.
The samples were collected during step-drawdown and constant-rate testing. Alex Stewart International, Argentina, an independent certified laboratory in Salta, analysed the material. The laboratory tested for lithium and other elements including boron, potassium, magnesium, calcium, sodium, barium, iron, manganese and strontium.
The analytical work also covered chloride, sulphate, alkalinity, total dissolved and suspended solids, hardness, density, pH and specific conductivity. The quality assurance and quality control batch included a blank and duplicate sample.
NOA said the reported average represents the lithium concentration in the pumped brine under the conditions of the tests. The samples captured the combined inflow from the screened intervals contributing to the well, rather than a single isolated interval.
The well was drilled to a depth of approximately 404 metres and completed with 142 metres of screened casing across brine-bearing levels identified as potentially productive.
NOA previously reported initial hydraulic testing with pumping rates of up to approximately 25 litres per second. The company identified a recommended operating rate of approximately 20 L/s, compared with the 15 L/s rate considered in the Rio Grande Project’s Preliminary Economic Assessment.
Chief Executive Officer Gabriel Rubacha said the company viewed the laboratory results as confirming its initial assessment from a nearby diamond drill well. He also linked the findings with the hydraulic performance reported in September 2026 and said the pumped-brine data would support the next stage of technical work.
According to NOA, its 2026 exploration programme is designed to evaluate deep brine-bearing aquifers and refine the Rio Grande Project’s hydrogeological and resource models as the company advances toward further technical and economic studies.
NOA Lithium Brines is a lithium exploration and development company with projects in Salta Province, Argentina. Its stated portfolio includes positions on the Rio Grande, Arizaro and Salinas Grandes salars totalling over 140,000 hectares.
NOA cautioned that statements concerning exploration, further brine process testing, technical work and future studies involve risks and uncertainties. The company said assumptions may prove incorrect, and that actual results and future events could differ materially from those anticipated.
NOA Lithium Brines Inc. reported laboratory results averaging 651 mg/L lithium from 8 brine samples pumped during tests at well RT-RG26-PW002 at its Rio Grande Project in Salta Province, Argentina. The samples were analysed by Alex Stewart International, Argentina, an independent certified laboratory in Salta.
The results were reported on October 29, 2026, and relate to samples collected during pumping tests at the Well, specifically during the step-drawdown test and constant-rate test. They complement hydraulic performance reported by the Company on September 24, 2026.
NOA Lithium Brines Inc. reported an average lithium concentration of 651 mg/L in the pumped brine. The Company said this figure reflects the lithium concentration of the sampled brine under the test conditions.
NOA Lithium Brines Inc.'s average was based on 8 pumped-brine samples. As part of its quality assurance and quality control programme, the batch also included a blank and duplicate sample.
Alex Stewart International, Argentina, analysed the samples as an independent certified laboratory in Salta. The laboratory tested the samples for lithium and several other elements, as well as chloride, sulphate, alkalinity, total dissolved and suspended solids, hardness, density, pH and specific conductivity.
The Well was drilled to a depth of approximately 404 metres. It was completed with 142 metres of screened casing distributed across brine-bearing levels identified as potentially productive.
The samples reflect the combined inflow from the screened intervals contributing to the Well during testing. NOA Lithium Brines Inc. said the reported average of 651 mg/L therefore characterises the pumped brine under those test conditions.
NOA Lithium Brines Inc. said initial hydraulic testing achieved pumping rates of up to approximately 25 L/s, with a recommended operating rate of approximately 20 L/s. The Company compared this with the 15 L/s rate considered in the Project's Preliminary Economic Assessment.
Chief Executive Officer Gabriel Rubacha said the results confirmed the Company's positive initial assessment from a nearby diamond drill well. He also said the brine results, together with the well performance reported in September 2026, reinforce the Company's confidence in the area's potential and provide laboratory results from pumped brine for the next stage of studies.
NOA Lithium Brines Inc. said its 2026 exploration programme is designed to support the evaluation of deep brine-bearing aquifers and the refinement of the Project's hydrogeological and resource models. The Company is advancing Rio Grande towards further technical and economic studies.
NOA Lithium Brines Inc. is a lithium exploration and development company formed to acquire assets with significant resource potential. Its projects are located in Salta Province, Argentina, in the Lithium Triangle, and its portfolio includes positions on the Rio Grande, Arizaro and Salinas Grandes salars totalling over 140,000 hectares.
NOA Lithium Brines Inc. identifies its listings as TSXV:NOAL and Frankfurt:N7N.
NOA Lithium Brines Inc. said forward-looking statements involve risks and uncertainties, including the results of exploration drilling, further brine process testing and exploration, along with other risks detailed in its securities-regulatory filings. The Company cautioned that assumptions may prove incorrect and that actual results and future events could differ materially from those anticipated.