Mr. Scott Berdahl reports

SNOWLINE GOLD IDENTIFIES NEW GOLD ZONE NEAR ITS VALLEY DEPOSIT AND PROVIDES REGIONAL EXPLORATION UPDATE

Snowline Gold Corp. has provided updates to its continuing exploration and development programs in eastern Yukon. At Valley, sheeted quartz veins with visible gold are present in drill holes within a newly discovered and still open zone potentially 500 metres by more than 100 metres along the eastern boundary of the local intrusion, several hundred metres east of the current limit of the Valley mineral resource estimate (MRE). On the broader Rogue project, of five additional reduced intrusion-related gold system (RIRGS) targets drilled outside of Valley so far in 2025, all have now encountered trace instances of visible gold. Assays are pending for all regional holes. In addition, surface exploration has discovered sheeted quartz vein mineralization in granodiorite at Snowline's early-stage Ramsey target, located at low elevations roughly 22 kilometres west of Valley. To date, over 20,000 metres have been drilled by the company this year on the Rogue and Einarson projects, with drilling continuing and assays pending for approximately 17,500 metres.

"We have a lot to be excited about as initial assays come in for the 2025 drill season," said Scott Berdahl, chief executive officer and a director of Snowline. "Late last season, drill hole V-24-115 gave indications that the eastern margin of the Valley intrusion could host an additional zone of strong RIRGS mineralization. Our current drilling shows increased quartz vein densities towards this eastern margin, accompanied by trace amounts of visible gold, along a wide corridor that is well outside of our previous drilling. On the broader Rogue project, additional RIRGS targets demonstrate widespread gold fertility through drilling and through ongoing surface exploration. We await analytical results to determine the significance of these initial results.

"I would like to commend Snowline's field team on safe execution of such a rigorous exploration campaign to date in the midst of a busy and multifaceted season. The various engineering and environmental studies thrown into the mix to advance our Valley deposit have not dampened the pace nor the enthusiasm of our team in getting out and taking big swings towards making additional discoveries across our prospective greenfield mineral property portfolio."

Valley updates, Rogue project

Drilling: Over 11,500 metres of drilling have been completed within and near the Valley deposit to date in 2025, and drilling is continuing. The objectives of this program are: (1) to test potential expansion of the current MRE for Valley; (2) to test for new zones of high-grade mineralization within the Valley intrusion; and (3) to prepare for a future prefeasibility study (PFS) by upgrading inferred resources to higher categories and obtaining additional geotechnical information.

Of note, a new zone of sheeted quartz veins has been identified along the previously untested eastern margin of the Valley intrusion, with abundant instances of trace visible gold observed within the veins. The location of this mineralization at depth corresponds to the surface expression of the Ridge zone soil and talus fine gold anomaly, identified by the company in early sampling (see Snowline's March 10, 2022, news release). These observations await analytical results, which are necessary to assess the significance of the new zone of mineralization.

In addition, the company has received results from its first five holes at Valley to date. These holes, V-25-125 through V-25-129, reveal broad zones of anomalous gold mineralization outside of the current Valley MRE and, where inside the existing block model, will serve to inform potential recategorization of inferred mineral resources (Table 1).

Valley development: A rigorous program of geotechnical, geochemical, surface, groundwater and environmental testing is continuing at Valley and related sites to support advancement of a future PFS and permitting.

Table 1 -- anomalous gold intervals in drill holes V-25-025 through V-25-129 from the Valley deposit

Regional updates, Rogue project

Over 4,300 metres of drilling have been completed to date in 2025 on the Rogue project outside of the Valley deposit, on five additional targets. Rare instances of trace visible gold have been encountered in drill core from all five targets, in small (0.5- to 10-centimetre) quartz veins, consistent with the RIRGS deposit model. This regional exploration campaign is continuing, with assays pending for all targets.

Duke target

Duke is located roughly 11 kilometres southeast of Valley. The host intrusion forms a 1.4-kilometre-by-1.3-kilometre multiphase stock. The full extent of the intrusion is not yet known. A north-south creek through the intrusion exposes similar outcrops with evidence of surface mineralization along a three-kilometre corridor.

The intrusion at Duke is characterized by porphyritic to equigranular granodiorites and diorites crosscut by multiple intrusive breccias that in all cases show quartz-plus-or-minus-sulphide veins with minor to trace bismuthinite, arsenopyrite, boulangerite, chalcopyrite, pyrrhotite and tourmaline. Disseminated acicular arsenopyrite is also observed within the intrusive and country-rock volcanic units. Three sets of veins have been identified with distinct orientations. Three holes have been completed (1,331 metres) in the first-ever drill testing of the target, with rare, trace instances of visible gold observed each hole. Assay results are pending for these holes.

JP target

JP is another RIRGS target that forms part of the Rogue plutonic complex. It is located eight kilometres southwest of Valley and eight kilometres south of the Valley access route envisioned in the recent Rogue project PEA (preliminary economic assessment). It is characterized by a northeast-elongated 1.2-kilometre-by-0.7-kilometre megacrystic syenite crosscut by smaller granodioritic dikes.

Mineralization is hosted in subhorizontal quartz-sulphide veins, with densities varying between one and three veins per metre. These veins contain traces to massive aggregates of arsenopyrite, bismuthinite, pyrite and pyrrhotite. Three holes have been completed as part of the first-ever drill campaign done on this target (1,456 metres). Rare, trace instances of visible gold have been identified within quartz veins in each hole. Assays are pending for all holes at JP.

Aurelius target

Two holes have been drilled so far at Aurelius as part of a phase II drill program (535 metres), following up on phase I drilling in 2024. Of note, hole AU-25-007 intersected a medium-grained granodiorite containing sheeted quartz veins with varying levels of sulphides. Outcrops of similar granodiorite were identified 150 metres south of this hole, but no veining was identified at surface. While trace visible gold was encountered in phase I drilling, no visible gold has been observed to date within the intrusion. Assays are pending for all phase II holes at Aurelius.

AU-25-007 did not reach its target depth due to operational problems. The drilled bedrock interval (between 80 and 150 metres) contains two sets of veins, all of them with minor to trace pyrrhotite, pyrite, arsenopyrite, bismuthinite and molybdenite. Vein density ranges between two and five veins per metre. A follow-up hole is planned before the end of the season to further test this newly discovered instance of intrusion-hosted sheeted quartz veins.

Ramsey target

Surface prospecting and mapping at the Ramsey target have located outcropping sheeted quartz veins hosted in granodiorite. Owing to the covered nature of the target area, the character and extent of this quartz-vein-hosted mineralization and the granodiorite itself are not yet known. The outcrop has been channel sampled across its full seven-metre width, with assays pending. On positive results, the Ramsey target may become a candidate for a late-season, phase I drill program. Initial prospecting of the target area yielded visible gold in outcrop, hosted by thin, sheeted quartz veins through gabbro, with a selective grab sample returning 86.5 grams per tonne gold (see Snowline's news release dated May 2, 2024).

The Ramsey target is located 22 kilometres west of Valley and roughly four kilometres from the access corridor envisioned by the recent Rogue project PEA. It has never been drill tested.

Quality assurance/quality control

On receipt from the drill site NQ2-sized drill core was systematically logged for geological attributes, photographed and sampled at Snowline's Forks camp. Sample lengths as small as 0.5 metre were used to isolate features of interest, but most samples within moderate to strong mineralization were 1.0 metre in length; otherwise, a default 1.5-metre downhole sample length was used. Core was cut in half lengthwise along a predetermined line, with one-half (same half, consistently, dictated by orientation line where present or by dominant vein orientation where absent) collected for analysis and one-half stored as a record. Field duplicates were collected at regular intervals as one-fourth core samples by splitting the one-half core sent for sampling, leaving a consistent record of half core material from duplicate and non-duplicate samples alike. Standard reference materials and blanks were inserted by Snowline personnel at regular intervals into the sample stream. Bagged samples were sealed with security tags to ensure integrity during transport. They were delivered by expeditor to Bureau Veritas's preparatory facility in Whitehorse, Yukon. Sample preparation was completed in Whitehorse, with analyses completed in Vancouver.

Bureau Veritas is accredited to ISO/IEC 17025 and ISO 9001 for quality management. Samples were crushed by BV to greater than 85 per cent passing below two millimetres and split using a riffle splitter; 250-gram splits were pulverized to greater than 85 per cent passing below 75 microns. A four-acid digest with an inductively coupled plasma mass spectroscopy (ICP-MS) finish was used for 59-element analysis on 0.25-gram sample pulps (BV code: MA250). All samples were analyzed for gold content by fire assay with an atomic absorption spectroscopy (AAS) finish on 30-gram samples (BV code: FA430). Any sample returning greater than 10 grams per tonne gold was reanalyzed by fire assay with a gravimetric finish on a 30-gram sample (BV code: FA530).

For the purposes of this release, contiguous mineralized intervals at Valley are defined as runs of mineralization with no break greater than 5.0 metres assaying entirely less than 0.1 gram per tonne gold and may include any highlight subsections thereof.

About Snowline Gold Corp.

Snowline Gold is a Yukon-focused gold exploration and development company with an eight-project portfolio covering roughly 360,000 hectares (3,600 square kilometres). The company is advancing its Valley deposit -- a large, low-strip, near surface, greater-than-one-gram-per-tonne-gold bulk-tonnage gold system located in eastern Yukon -- while continuing regional exploration of surrounding targets on the Rogue project and the broader district in the highly prospective yet underexplored Selwyn basin.

Valley hosts an open MRE of 7.94 million ounces gold at 1.21 grams per tonne gold measured and indicated (in 204.0 million tonnes) and an additional 890,000 ounces gold inferred at 0.62 gram per tonne gold (in 44.5 million tonnes), with a cut-off grade of 0.3 gram per tonne gold. Results of a PEA of Valley suggest the potential for the deposit to support a long-life mining operation with a strong production profile and low production costs. The MRE and PEA are supported by the recent technical report for Rogue, prepared in accordance with National Instrument 43-101 standards, entitled "Independent Preliminary Economic Assessment for the Rogue Project, Yukon, Canada," dated July 30, 2025, with an effective date of March 1, 2025, and available on SEDAR+ and the company's website.

Snowline's project portfolio sits within the prolific Tintina gold province, host to multiple million-ounce-plus gold mines and deposits across central Yukon and Alaska. The company's comprehensive first-mover position and extensive exploration database provide a distinct competitive advantage and a unique opportunity for investors to be part of multiple discoveries, the advancement of a significant gold deposit and the creation of a new gold district.

Qualified person

Information in this release has been prepared under supervision of and approved by Sergio Gamonal, MSc, PGeo, chief geologist for Snowline Gold, as qualified person for the purposes of NI 43-101.

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