PJX Resources Discovers Large Sedex Mineralising System on the Dewdney Trail Property in the Sullivan Mining Camp, Southern British Columbia

TORONTO, ON / ACCESS Newswire / December 11, 2025 / PJX Resources Inc. ("PJX" or "the Company") is pleased to announce that recently completed drilling on its' Dewdney Trail Property has intersected 63 metres (m) of "Quake zone" mineralization, a zone with pervasive and continuous strongly anomalous zinc, lead, silver and other critical metal mineralization (see Table 1 and Photo A). Bands of bedded Sedex disseminated to semi-massive sulphide mineralization occur above and below the Quake zone (see photo B). Tourmaline alteration, characteristic of mineralization at the Sullivan deposit, occurs as bands above and within the zone. The bands of intersected sulphide mineralization are similar to the range of thickness for some bands at the Sullivan deposit (see Diagram 1). Exploration has also discovered sulphide boulders 800 meters farther south and on strike with the drilling. One boulder assayed 546g/t silver, 32.3% lead, and 4.89% zinc. Management believes these new discoveries are supportive evidence of a large sedex-style mineralizing system within the Estella basin on the Dewdney Trail Property.

Prospecting on strike 2 kilometres ("km") north of the drilling has also identified stacked mineralized beds of tourmalinite, indicating the potential for discovery of a second venting environment and sedex mineralization. The alteration is associated with a large zinc-lead-silver-copper-gold soil anomaly, the Lewis Ridge target zone (see Map 1). This is similar to deposits in the Sullivan Sedex basin, with the North Star deposit located approximately 2 km south of the massive Sullivan deposit.

PJX is well positioned to capitalize on the deposit potential of these new discoveries with 100% of the mineral rights to the 200 km² Dewdney Trail Property. The property has road, power, and rail access, and is located about 25 km east of the Sullivan deposit near Cranbrook BC, Canada. It is about a half a day rail to Teck's Trail smelter. Teck and Anglo America recently announced a planned merger. Glencore owns Teck's former Coal operations located only 60 km east of the property. Hecla Mining's operations are about a 4 hour drive south in Idaho, USA.

This large system has produced Sullivan style and grade mineralization as evidenced by the boulders discovered in talus at the base of the mountain slope that were announced October 12, 2023 and shown in Table 2 and photos E and F. Bands hosting this high-grade mineralization have not yet been intersected in drilling, in part because a suite of younger syenite dykes have intruded the sulphide zones and mask underlying geology.

Dave Pighin, PJX Resources' consulting geologist commented: "The discovery of this thick Quake zone with pervasive zinc-lead-silver mineralization throughout and bands of Sedex mineralization and tourmalinite are indicative of a large mineralising system. In my 60 years of exploring for Cominco and other companies, this is the first discovery of a mineralizing system that rivals that of the Sullivan basin. It was not found earlier because mineralization is hidden beneath a series of younger dykes that appear to dip along the slope of the mountain and mask the deposit potential beneath them."

John Keating, President of PJX commented: "Large deposits like the Sullivan often occur in large mineralizing systems. The large system we've identified is associated with high grade critical metal mineralization as evidenced by the Sullivan Style and grade of boulders found at the bottom of the mountain slope. We now know that it is not only a large system in width, but also strike potential, as indicated by the new prospecting discovery 800 m to the south and large multi-element soil geochemical anomaly 2,000 m to the north. We were able to extend the drill trail 800 m to the south with plans to test the new prospecting area as soon as the snow melts, possibly in May or early June of 2026. More information will be announced as data is further compiled.

PJX also owns the mineral rights to the largest land package (750 km²) of the 60 km long Vulcan gold belt in the Cranbrook area. We've identified over 10 priority target areas with gold potential that have not been tested and are mostly road accessible. With gold at over US$4,000/oz we plan to announce more about the gold potential and also explore partnerships to capitalize on these targets."

Photo A - Example of part of the Quake zone from 176.70 m to 184.67 m in hole ND25-26.

Disrupted sediments and fragmentals occur throughout the zone. Sericite and chlorite alteration are dominant with local tourmalinite. Sphalerite (zinc sulphide), galena (lead sulphide) are disseminated to fracture and locally vein controlled. Blebs of pyrrhotite/pyrite (iron sulphides) also occur in the Quake zone.

Photo B: Bands of bedded disseminated to semi-massive and massive sulphide Sedex mineralization in hole ND25-25 (73.5-74.5 m) with 1.13% zinc from 73.77-74.22 m, and in ND25-26 from 73.7-74.0 m that assayed 1.65% zinc.

The 2 bands are separate zones and represent stacked layers of bedded mineralization. Bands are similar in thickness to the thickness range of some bands at the Sullivan (see Diagram 1). Although the bands are low in grade, Sullivan-grade boulders discovered in talus at the bottom of the slope support the presence of higher-grade bands that have not yet been intersected.

Table 1 - 63.7 m intersection of Quake Zone in hole ND25-26 (172.3 m - 236.0 m)

Strongly anomalous zinc, lead, silver, and other metal values are pervasive throughout the Quake zone. True thickness of the zone is estimated at about 30 m. The considerable thickness and consistent mineral content of the zone is indicative of a large mineralizing system and supports the potential to produce a significant deposit. The zone represents a period of disturbance in the ocean floor when faults and vents are active and carried metals in fluids to form mineral deposits beneath and on the ocean floor.