Mr. Dave Jackson reports

PRIMARY HYDROGEN STAKES 65 KM(2) SEAGULL NORTH PROJECT ADJOINING ACTIVE DRILLING TARGETING NATURAL HYDROGEN AND HELIUM IN NORTHWESTERN ONTARIO

Primary Hydrogen Corp. has staked the Seagull North project, comprising 313 contiguous single-cell mining claims covering approximately 65 square kilometres in the Thunder Bay mining district of Northwestern Ontario. The project adjoins the northern boundary of the Seagull property, where a joint venture between Rift Minerals Inc. and Anteros Metals Inc. is conducting one of Canada's first drill programs targeting natural hydrogen and helium alongside platinum group element mineralization.

Highlights:

• 313 contiguous single-cell mining claims covering approximately 65 square kilometres adjoining the northern boundary of the Seagull property approximately 80 kilometres northeast of Thunder Bay;
• 2026 drilling on the adjoining property has returned reported hydrogen-bearing gas results at depth, including a rush sample that assayed 0.65 per cent (6,500 parts per million) hydrogen (Anteros Metals Inc., May 27, 2026);
• The Seagull intrusion is a roughly 10-kilometre-diameter mafic-to-ultramafic body -- a rock type associated with natural hydrogen generation through serpentinization -- with more than 20,000 metres of historical drilling reported by the adjoining operators;
• Initial work program: compilation of historical drilling, geophysical and government geoscience data, and structural targeting across the project.

"The Seagull intrusion, a 10-kilometre ultramafic body, is a rock type which generates natural hydrogen through water-rock reactions, and recent drilling on the adjoining property has reported hydrogen-bearing gas from two holes, with the deeper geophysical target only just being reached," said David Jackson, chief executive officer of Primary Hydrogen. "We took the open ground along the northern boundary in one contiguous block. When a system starts returning gas at depth, you want the ground beside it -- and now we have it."

The Seagull North project

Seagull North comprises 313 contiguous single-cell mining claims (claim No. 1053009 through No. 1053321) registered on Ontario's Mining Lands Administration System, covering approximately 65 square kilometres in the Thunder Bay mining district. The project forms a single east-west block adjoining the northern boundary of the Seagull property, approximately 80 kilometres northeast of Thunder Bay in a road-accessible region that also hosts Impala Canada's Lac des Iles palladium mine. Compilation of government geoscience data will define the extent to which the Seagull intrusive system and its margin project onto the company's claims.

The adjoining Seagull property

The Seagull property covers a roughly 10-kilometre-diameter Mesoproterozoic mafic-to-ultramafic intrusion of the Keweenawan supergroup, emplaced into Archean Quetico subprovince metasedimentary rocks within the Nipigon embayment of the Midcontinent Rift. Anteros Metals has vested an initial 20-per-cent interest in the property and may earn up to a 49-per-cent interest under a joint venture agreement with Rift Minerals Inc.

In 2026, the joint venture's deep drilling program returned the following (as reported by Anteros Metals):

• Drill hole WM08-27EXT intersected a pressurized gas occurrence at approximately 825 metres depth, with gas samples from that interval returning carbon dioxide up to 88.6 per cent nitrogen up to 0.76 per cent and 0.04 per cent (400 ppm) hydrogen, before the hole advanced to approximately 1,200 metres (May 27, 2026);
• A rush sample from drill hole WM00-05EXT, located 150 metres to the southwest and collected during hole repressurization, assayed 49.5 per cent nitrogen, 44.2 per cent carbon dioxide, 5.6 per cent methane and 0.65 per cent (6,500 ppm) hydrogen (May 27, 2026);
• Hole WM00-05EXT was subsequently completed to a depth of 1,449 metres, intersecting the eastern portion of a deep, low-acoustic-velocity geophysical target; Anteros reported that the relationship between the gases and that target is not yet resolved and that it intends to seal all drill casings, install pressure gauges and release valves, and collect further gas seepage in pressurized stainless steel canisters for analysis (June 8, 2026).

Historical exploration on the Seagull property, as reported by the adjoining operators, includes more than 20,000 metres of drilling by prior operators that delineated nickel/copper/platinum group element mineralization along the intrusion's basal contact to depths of approximately 850 metres, and a historical drill hole that reportedly intersected pressurized, flammable gas near 850 metres depth.

All results described above are company reported by the adjoining operators and have not been independently verified by the company. Historical results have not been verified by the company. Hydrogen occurrences, mineralization and exploration results on adjacent properties are not necessarily indicative of the geology of or the presence of natural hydrogen, helium or mineralization on the company's claims, and there can be no assurance that similar results will be obtained on the project.

Geology and exploration thesis

Serpentinization -- the reaction of water with iron-rich ultramafic rocks -- is one of the principal geological processes understood to generate natural hydrogen, and radiogenic decay in Archean basement rocks is a recognized source of helium. The company interprets the northern flank of the Seagull intrusive system as prospective for structurally controlled migration and accumulation of gases generated within or beneath the intrusion, with the intrusion's margins and associated faults representing potential pathways. These interpretations are conceptual: No drilling, sampling or geophysical surveying has been carried out by the company on the project, and no hydrogen, helium or mineral occurrence has been documented on the project to date. Natural hydrogen exploration is an emerging field, and exploration methodologies for it continue to evolve.

Planned work

The company's initial program will comprise compilation of the extensive historical drilling and geophysical data sets covering the district, integration with Ontario Geological Survey mapping, and structural interpretation to define targets on the project. A ground program will follow from that work.

LIFE (listed issuer financing exemption) offering update

The company also announces that, further to its news releases dated June 4, 2026, June 23, 2026, and July 8, 2026, the company has unwound and rescinded $10,000 worth of subscriptions previously completed on pursuant to the company's non-brokered private placement that closed on July 8, 2026. In particular, $5,000 worth of subscriptions by each of Martin Kowcun and William Timothy Heenan, both directors of the company, were unwound and an aggregate of 16,666 units were cancelled and returned to treasury. The total number of units issued pursuant to the offering is now 2,442,904 units for aggregate gross proceeds of $1,465,742 following the adjustment noted above.

About Primary Hydrogen Corp.

Primary Hydrogen is dedicated to the exploration and development of natural hydrogen resources. With projects in the United States and across Canada, the company's portfolio includes the Blakelock, Hopkins, Mary's Harbour, Point Rosie, Crooked Amphibolite, Coquihalla, Cogburn and Northumberland projects. Primary has an option to acquire a 75-per-cent interest in a hydrogen/rare earth element project known as Wicheeda North, located in British Columbia.

We seek Safe Harbor.