Mr. Perry Little reports

GREEN RIVER GOLD IDENTIFIES LITHIUM AND RARE EARTH ELEMENT PATHFINDERS IN THE FIRST FIELD RECONNAISSANCE PROGRAM AT THE KALI PEGMATITE PROJECT

Green River Gold Corp. has completed the first field reconnaissance program for the KaLi pegmatite property, and pathfinder elements have been identified by a hand-held XRF (X-ray fluorescence) analyzer. The property is 100-per-cent-owned by the company and is located 45 kilometres northwest of the town of Clearwater, in the prolific Kamloops mining district in south-central British Columbia, Canada.

The 2023 field reconnaissance program was designed to evaluate the potential for LCT (lithium-cesium-tantalum)-bearing pegmatites, and copper and molybdenum porphyry system on the property. Prospecting on the property was conducted between Aug. 10 and Aug. 14, 2023.

The KaLi pegmatite project consists of 1,059.5 hectares of land and dates back to the early 1960s, when Noranda Exploration conducted the first comprehensive soil geochemistry survey over an approximate five km by 1.5 km wide area. This was followed up by two other grassroots surveys conducted by Amoco in 1974 and Norseman Mining Corp. in 1980, which further duplicated the geochemistry. In 1981, Placer Development Ltd. performed geochemical and geophysical surveys near the southwestern extent of the property. With the primary focus of exploration in this area over the last six decades being focused on molybdenum, the potential for lithium-bearing pegmatites in the area was not specifically targeted by previous exploration. Updates to Green River Gold website are under way, which will include the company's proposed lithium exploration plans.

Prospective locations for the rock sampling were selected based on the topographic relief and previously mapped outcrops of the surrounding granitic rocks (ARIS 37548 and 39546). The property is accessible by a well-maintained forest service road. The project geologist collected both grab and chip samples along the access trails which cover the entire property.

The exploration crew collected 28 rock samples in total. All samples have been delivered to the company's facility in Quesnel, B.C., and tested by a 2023 Sci-Aps X-550 hand-held X-ray fluorescence analyzer. Three main categories of rock samples have been identified:

1. Quartz monzonite pegmatite -- the pegmatite samples contain lithium pathfinder elements tantalum (Ta), niobium (Nb) and rubidium (Rb).
2. Chalcopyrite in quartz monzonite -- elevated copper and iron concentrations were detected.
3. Massive sulphide grab samples containing high concentrations of sulphur, and elevated iron and copper.

Note: The XRF data is taken as point values and do not represent the true grade of the samples analyzed. The elemental data is highly dependent on the location at which the X-ray beam intersects the rock. The device used to take the data points is a 2023 SciAps X-550 hand-held X-ray fluorescence analyzer, which produces a beam spot diameter of up to three millimetres (mm). It is designed to achieve laboratory-quality results in the field, and provides rapid and accurate elemental analysis and testing.

Geological summary

The field reconnaissance program was successful at defining granitic-pegmatite lithologies and other potentials which possess the following key characteristics:

1. Coarse mineral grain size with visible pegmatitic textures (graphic mineral intergrowths, exsolution laminae in felspars).
2. Encouraging the presence of other phases indicative of a fertile melt (biotite, muscovite and possible tourmaline).
3. Elevated concentrations of pathfinder elements associated with the presence of LCT pegmatite (tantalum, niobium and rubidium are present in the XRF measurements).
4. Potential copper and molybdenum porphyry system.
5. Occurrence of the massive sulphide samples.

Next phase exploration plan

Ten out of 28 rock samples have been sent to MSA Labs in Langley, B.C., for the 51-element ultratrace-level diagnosis. The anticipated time frame for receiving the assay results is approximately four weeks. Pending the assay results, the company will move to the next phase of exploration. Given the geochemical anomalies present in granitic-pegmatitic units on the property, the company intends to conduct follow-up exploration programs beginning with the following:

1. An expanded surface geochemical sampling program (soil, rock and potentially stream sediments). The soil sampling program will be especially valuable in areas of the project with limited bedrock exposures.
2. Geological mapping, finding more pegmatite veins and pegmatitic rock exposures to determine the grade of lithium and rare earth elements.
3. Backpack drilling aimed at intersecting the LCT pegmatite. Check the grades of lithium and rare earth elements in the LCT pegmatite.

Quality assurance/quality control

Lithium standard samples (CDN-Li-1) and blanks (CDN-BL-10) were systematically inserted into each batch of samples at regular intervals. The standard samples were purchased from CDN Resource Laboratories in Langley, B.C. The rock samples were placed in sealed bags and shipped directly to Met-Solve Laboratories Inc. (MSA) in Langley, B.C. The assay lab preparation procedure included crushing the entire sample to 80 per cent passing two mm, riffle splitting 250 grams, and pulverizing the split to 95 per cent passing 105 micrometres. Base metal analyses are determined using the aqua regia digestion, 51-element ultratrace level, finished by ICP-MS (inductively coupled plasma mass spectrometry) and ICP-ES (inductively coupled plasma emission spectroscopy). Analytical results are verified with the application of industry-standard quality assurance and quality control (QA/QC) procedures. The MSA Labs has an ISO 17025 certificate.

Qualified person

Stephen P. Kocsis, PGeo, is the qualified person as defined by National Instrument 43-101, and has reviewed and approved the technical information in this news release.

About Green River Gold Corp.

Green River Gold is a Canadian mineral exploration company focused on its wholly owned Fontaine gold project, Quesnel nickel/magnesium/talc project and Kymar silver project which are located in renowned mining districts in British Columbia.

The Fontaine gold and Quesnel nickel properties cover an area exceeding 200 square kilometres and straddle a 32-kilometre length of the Barkerville and Quesnel terranes. They are contiguous to Osisko Development's mineral claim group containing a proposed mine location at its Cariboo gold project.

The Kymar silver project is located in southeast B.C., approximately 28 kilometres west of the town of Invermere in the Golden mining division. The property is made up of nine mineral tenures, totalling 1,625 hectares, along the southeast flank of Mount Catherine.

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