Mr. Wayne Hubert reports

INZINC ACCELERATES ANALYSIS OF CORE FROM PHASE 2 DRILLING LOCATED 300 M NORTH OF B-9 ZONE AT INDY PROJECT, CENTRAL BC

Inzinc Mining Ltd. has accelerated the analysis of samples from its phase 2 2025 diamond drilling located 300 metres north of the recently expanded 700-metre B-9 zone. The 100-per-cent-owned Indy sedex (zinc-lead-silver-gallium-barite) project is well located 90 kilometres southeast of Prince George in central British Columbia, Canada. Results of analysis from prioritized samples are anticipated in approximately four to five weeks.

The phase 2 drill program (six holes, 800 metres) followed up on the success of the phase 1 program, which accomplished a 55-per-cent increase to the strike length of the shallow B-9 mineralized horizons to 700 metres in length. Phase 2 explored the strike extension of the B-9 horizons a further 300 metres to the north.

"Following a tremendous achievement in phase 1, nearly doubling the drill-defined length of the B-9 horizons to 700 metres, our exploration team highlighted and focused on an easily accessible target area located 300 metres further north," remarked Wayne Hubert, chief executive officer of Inzinc. "We are excited about the continued growth at the B-9 zone in central B.C., which comprises strata analogous to the prolific Selwyn basin, known to host the largest concentration of sedex-type deposits (zinc-lead-silver plus critical/strategic metals) in North America."

Conclusions from phase 1 2025 drilling:

• 55-per-cent extension of B-9 mineralization to 700-metre strike -- all intersections within 120 metres of surface; remains open at depth;
• Expanded near-surface high grades, now containing gallium -- 11.0 per cent zinc, 2.3 per cent lead and 27.1 grams per tonne silver over 3.0 metres from 61.0 metres downhole in hole IB25-029; a sample of massive sulphide comprising a 0.6-metre length (from 63.4 metres to 64.0 metres) grading 34.8 per cent zinc, 7.0 per cent lead and 76.7 grams per tonne silver returns 4.46 parts per million gallium;
• Increased widths directly below surface -- 19.1-metre width from 29.9 metres downhole averaging 3.3 per cent zinc, 0.7 per cent lead and 7.4 grams per tonne silver, including a high-grade zone averaging 8.5 per cent zinc, 2.1 per cent lead and 21.3 grams per tonne silver over 2.0 metres from 31.0 metres downhole, intersected in hole IB25-032;
• Multiple mineralized horizons now recognized -- a second, shallower mineralized horizon identified and developing to the east of previous drilling;
• B-9 horizons remain open along strike and at depth.

Permitted with large exploration targets:

• Multiyear exploration permit, renewed in 2024, for 60 drill holes;
• Multiple, kilometre-scale, untested soil geochemical anomalies defined by over 6,000 soil samples;
• Geophysical anomalies defined by 1,100 line kilometres of airborne geophysics flown over the 30-kilometre-long property;
• Drilling to date has tested just 10 per cent of the prospective Main trend.

New mineral district with road access and proximal infrastructure

Indy is well located with respect to road, rail, power, port and smelter infrastructure in central British Columbia. The extensive tenure at Indy covers 200 square kilometres and a 30-kilometre length of unexplored strata analogous to the prolific Selwyn basin of northeastern British Columbia and Yukon.

The near-surface mineralization (zinc-lead-silver-gallium and barite) discovered across the Main trend is typical of worldwide sedex deposits and districts. These deposits often include significant silver and critical minerals as byproducts.

About Inzinc Mining Ltd.

Inzinc is an active explorer at its Indy sedex project (100 per cent) in central British Columbia, Canada. The company is exploring near-surface zinc-lead-silver-gallium and barite mineralization discovered at Indy in a new, unexplored mineral region analogous to the prolific Selwyn basin of northeastern British Columbia and Yukon. South32 Ltd. became a major tenure holder in the Indy belt by staking approximately 200 square kilometres of adjacent claims in late 2021. Through its equity investment in American West Metals and a 50-per-cent royalty interest (net smelter return royalty) from any future production of indium mined at American West's West Desert project, Inzinc is also exposed to a portfolio of North American base metals and precious metals projects.

Qualified person

Patrick McLaughlin, PGeo, an independent qualified person as defined in National Instrument 43-101, Standards of Disclosure for Mineral Projects, and a registered professional geoscientist in British Columbia, has approved the technical content of this news release.

Quality assurance/quality control

HQ drill core was collected from the drill site and delivered to the Indy camp by Inzinc staff. The core was logged, sample intervals were outlined and photographic records were collected. Core samples were split using a diamond saw or manually chipped at the camp, with one-half of the core submitted for assay and the remainder stored in wooden core boxes. The core was bagged in individually marked plastic sample bags and shipments were compiled in labelled rice bags. Core shipments were delivered by Inzinc contract geologists to Bandstra Transportation Systems Ltd. in Prince George, B.C., for furtherance to MSA Labs in Langley, B.C., Canada, for analysis. Samples were prepared by MSA and analyzed by ICP-AES multielement plus four-acid digestion and select AAS fire assay. In addition to the labs' QA/QC procedures, Inzinc inserted blind standards, blanks or lab-directed duplicates by special instruction -- every 10th sample. The results from the QA/QC samples were within industry norms.

We seek Safe Harbor.