Redstone Completes Strongly Supported Placement

Vancouver, British Columbia TheNewswire – September twenty ninth, 2025 Prismo Metals Inc. (the ” Firm “) (CSE: PRIZ,OTC:PMOMF) (OTCQB: PMOMF) is happy to report that it has obtained last assay outcomes together with overlimits for the primary batch of twenty-three samples taken on the Silver King mission positioned in Arizona. The brand new assays embrace 619 gt Ag and 511 gt Ag for 2 samples taken on the Silver King shaft space, in addition to 757 gt Ag, 1.5% Cu, 6.7% Pb, and 11.5% Zn for the just lately encountered polymetallic vein. Preliminary assay information was described in a information launch dated September 24, 2025.

“The overlimit assays for silver spotlight the high-grade nature of each the mineralization across the Silver King mine and the just lately encountered polymetallic vein. The outcomes affirm the importance of the just lately found polymetallic vein as a brand new exploration goal on the Silver King mission,” stated Dr. Craig Gibson, Chief Exploration Officer. “Overlimit copper assays starting from 1.11% to 2.43% copper for 3 samples from the substitute mineralization space gives encouraging information for this type of mineralization. The substitute mineralization happens alongside strike with the stratigraphic horizon on the close by Magma mine and happens as a big physique on the Black Diamond declare.”

Determine 1 . Geologic and land map of the Silver King mission exhibiting newly described polymetallic vein in magenta (Ag-Pb-Zn), copper vein in inexperienced (Cu-Ag) and stratigraphically managed substitute mineralization in pink. The strongly altered intrusion with stockwork quartz-pyrite veining is indicated by the crosshatch.

Desk 1. Assay outcomes for samples with overlimits from the Silver King mission

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Determine 2 . Map exhibiting Silver King mission and close by mineral deposits. The Silver King deposit is positioned 3km from the Decision Copper deposit ( a three way partnership between Rio Tinto and BHP ) and the high-grade Magma mine, a former copper and silver producer.

Drill Program Replace

Previous to the invention of the mineralized veins and porphyry associated type mineralization introduced just lately, Prismo had deliberate a drill program on the historic Silver King mine for about 1,000 meters. That drill plan was designed to check the higher half of the steeply dipping pipelike Silver King mineralized physique in addition to potential mineralization adjoining to the dense stockwork that was the main focus of historic mining.

Following the latest discoveries, Prismo is planning so as to add second part of drilling for an extra 1,000 meters. This extra program will deal with the newly recognized targets outdoors of the historic mining space, such because the polymetallic vein and the copper vein talked about above. Drilling of a big physique of substitute mineralization on the patented Black Diamond declare can be being deliberate and is highway accessible on personal floor.

Determine 3 . Cross part via the Silver King mine workings exhibiting proposed drill holes (in black) to check the pipelike mineralized physique (in pink)

Click on Picture To View Full Measurement

Determine 4. Deliberate drill pads for the Silver King mission.

“A lot of the main focus of the exploration program so far has consisted of a property-wide survey of historic mines and prospects surrounding the direct Silver King workings,” stated Gordon Aldcorn, President of Prismo. ” This work has expanded our geological pondering and resulted within the recognition of a number of new sorts of mineralization on the mission, offering extra targets for exploration. Prismo has already submitted a plan of operations for the drill program with Forest Companies. A few of the drilling websites thought of for the brand new targets shall be topic to additional allowing purposes.”

Determine 5. Copper assays for samples taken on the Silver King mission.

Determine 6. Silver assays for samples taken on the Silver King mission.

Desk 4. Areas for samples talked about within the textual content.

Pattern information beforehand launched in Information Launch dated September 24, 2025.

QA/QC

Samples had been analyzed by SGS, an internationally acknowledged analytical lab, with preparation on the Tempe, Arizona facility and analyses on the Burnaby laboratory. Prismo inserts management samples consisting of normal pulps and coarse blanks within the pattern stream for QA/QC functions and likewise makes use of the labs inner management samples.

Certified Particular person

Dr. Craig Gibson, PhD., CPG., a Certified Particular person as outlined by NI-43-101 laws and Chief Exploration Officer and a director of the Firm, has reviewed and accredited the technical disclosures on this information launch. The historic information offered on this press launch was obtained from public sources, ought to be thought of incomplete and isn’t certified underneath NI 43-101, however is believed to be correct. The Firm has not verified the historic information offered and it can’t be relied upon, and it’s getting used solely to help in exploration plans. References to mineralization on the Magma Mine and Decision Copper deposit should not essentially indicative to the mineralization on the Silver King property.

In regards to the Silver King

Found in 1875, the Silver King mine was considered one of Arizona ‘ s most vital historic producers, yielding practically 6 million ounces of silver at grades of as much as 61 ouncest. The Silver King mine sits solely 3 km from the principle shaft of the Decision Copper mission — a three way partnership between Rio Tinto and BHP and one of many world ‘ s largest unmined copper deposits with an estimated copper useful resource of 1.787 billion metric tonnes at a median grade of 1.5% copper (1) . The distinctive land place is totally surrounded by Decision Copper ‘ s declare block, providing strategic upside. Chosen samples from small-scale manufacturing within the late Nineties returned grades as excessive as 644 ouncest silver (18,250 g/t) and 0.53 ouncest gold (15 g/t), indicating that high-grade mineralization stays.

1. (1) https://resolutioncopper.com/about-us/

2. (2) Briggs, D., 2015, Superior, Arizona: An outdated mining camp with many lives, Ariz. Geol Survey Contributed Report CR-15-D, 13p.

About Prismo Metals Inc.

Prismo (CSE: PRIZ,OTC:PMOMF) is a mining exploration firm targeted on advancing its Silver King, Ripsey and Sizzling Breccia initiatives in Arizona and its Palos Verdes silver mission in Mexico.

Please comply with @PrismoMetals on , , , Instagram , and

Prismo Metals Inc.

1100 – 1111 Melville St., Vancouver, British Columbia V6E 3V6

Cellphone: (416) 361-0737

Contact:

Alain Lambert, Chief Government Officer alain.lambert@prismometals.com

Gordon Aldcorn, President gordon.aldcorn@prismometals.com

Cautionary Notice Concerning Ahead-Wanting Info

This launch consists of sure statements and knowledge that will represent forward-looking info throughout the which means of relevant Canadian securities legal guidelines. Ahead-looking statements relate to future occasions or future efficiency and replicate the expectations or beliefs of administration of the Firm concerning future occasions. Usually, forward-looking statements and knowledge could be recognized by way of forward-looking terminology akin to ” intends” or ” anticipates”, or variations of such phrases and phrases or statements that sure actions, occasions or outcomes ” could”, ” might”, ” ought to”, ” would” or ” happen”. This info and these statements, referred to herein as “ahead‐trying statements”, should not historic info, are made as of the date of this information launch and embrace with out limitation, statements concerning discussions of future plans, estimates and forecasts and statements as to administration’s expectations and intentions with respect to, amongst different issues: the timing, prices and outcomes of drilling at Silver King.

These ahead‐trying statements contain quite a few dangers and uncertainties, and precise outcomes would possibly differ materially from outcomes advised in any forward-looking statements. These dangers and uncertainties embrace, amongst different issues: delays in acquiring or failure to acquire applicable funding to finance the exploration program at Silver King.

In making the forward-looking statements on this information launch, the Firm has utilized a number of materials assumptions, together with with out limitation, that: the power to lift capital to fund the drilling marketing campaign at Silver King and the timing of such drilling marketing campaign.

Though administration of the Firm has tried to establish vital components that would trigger precise outcomes to vary materially from these contained in forward-looking statements or forward-looking info, there could also be different components that trigger outcomes to not be as anticipated, estimated or meant. There could be no assurance that such statements will show to be correct, as precise outcomes and future occasions might differ materially from these anticipated in such statements. Accordingly, readers mustn’t place undue reliance on forward-looking statements and forward-looking info. Readers are cautioned that reliance on such info will not be applicable for different functions. The Firm doesn’t undertake to replace any forward-looking assertion, forward-looking info or monetary outlook which can be integrated by reference herein, besides in accordance with relevant securities legal guidelines. We search protected harbor.

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