Prismo Metals Announces Assay & IP Results at Silver King

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Vancouver, British Columbia – TheNewswire - December 3rd, 2025 – Prismo Metals Inc.(“ Prismo ” or the “ Company ”) (CSE: PRIZ) (OTCQB:PMOMF) is pleased to announce it has received assay results forsamples recently taken at the Silver King Project from two explorationtargets located on the east side of the property, namely the BlackDiamond replacement target and the newly named Crown porphyryintrusion target (Fig. 1).

Figure 1 .  Mapshowing the location of the Black Diamond replacement and Crownporphyry intrusion exploration targets at the Silver King project. Claim boundaries are shown in yellow.

The assays show high grade copper mineralization present at BlackDiamond (Fig 1). The rock chip samples yielded generally high copperassays with several samples analyzing in excess of 1 % Cu and twosamples in excess of 5 % Cu (Table 1, Fig. 2).  Gold is generallyanomalous for the Black Diamond samples.

Rock chip samples from the Crown porphyry intrusion generallyexhibited lead and zinc values with elevated silver and low copper andgold (Table 2).  Importantly, however, two samples of vein materialfrom the stockwork target yielded high gold values of 4 and 5 g/t(Fig. 2). The mineralization in the stockwork veining at Crownprovides impetus to complete additional exploration in the area.

Table 1. Assay results for samples from the Black Diamond replacement target.

Table 2 . Assay results for samples from the Crown porphyryintrusive target.

Click Image To View Full Size

Figure 2. Copper assays and high gold values for samples mentioned from theBlack Diamond
and Crown areas at Silver King.

IP Survey Update

The Company also has received the report for initial phase of its IPsurvey at Silver King.  The IP survey consisted of a gradient arrayto test for resistivity and chargeability anomalies at a depth ofabout 300m below the surface.

The IP survey shows low resistivity lows associated with the BlackDiamond replacement body as well as the stratigraphically controlledCu bearing replacements that extend toward the nearby Magma mine (Fig.3).  A second nearly east-west trending resistivity low occurs in thecentral portion of the claim block and coincides with a hypothesizedstructure that may control the Black Diamond body and also may beimportant in the formation of the Silver King deposit.  This type ofstructure is similar to the Magma vein, the main mineralized structureat the high-grade Magma mine, and is a prime exploration target.

The IP survey also shows several chargeability anomalies that arepresumably associated with disseminated sulfides, largely pyrite (Fig.4).  The stockwork intrusion mentioned previously is associated withone of these chargeability anomalies and provides a second importantexploration target with characteristics similar to mineralization athigh structural levels in porphyry systems.  A second similarchargeability anomaly occurs nearby to the southwest in an areaoverlain by a mostly barren quartz diorite intrusive and may representa similar blind porphyry target.

Based on the results of the initial IP survey, a follow-up pole-dipolesurvey to further define the anomalies from shallow to deeper levelsalong section lines is planned to be conducted in December.

Figure 3. IPresistivity map showing exploration targets: yellow line-Silver Kingglory hole,
magenta line-polymetallic vein, green line-copper vein, redoutlines-Black Diamond replacement
body and stratigraphically controlled replacement horizons, blackoutline-stockwork intrusion.

Figure 4. IPchargeability map showing exploration targets: yellow line-Silver Kingglory hole,
magenta line-polymetallic vein, green line-copper vein, redoutlines-Black Diamond replacement
body and stratigraphically controlled replacement horizons, blackoutline-stockwork intrusion.

Drilling Update

Alain Lambert, CEO of Prismo commented: ”The results announced todayconfirm the vast exploration potential at Silver King. While we lookforward to drilling these new targets in the future, our plans remainunchanged. Our immediate priority is to undertake our fully fundeddrill program, as previously announced. This drill campaign will focusprimarily on the historic Silver King mine site and will be for aminimum of about 1,000 meters. The objective is to test the upper halfof the steeply dipping pipelike Silver King mineralized body as wellas potential mineralization adjacent to the dense stockwork that wasthe focus of historic mining.”

Mr. Lambert added: “We are pleased with the steady progress on thepermitting front. The collaboration of Forest Service officialsdemonstrates a clear commitment to supporting mining activities inArizona.”

Prismo recently announced that the Forest Service, the federal surfaceland management entity for Silver King, had determined that theCompany’s proposed drill plan meets the regulatory requirements forprocessing, and that such plan is complete, as described in theregulations at 36 CFR 228.4(c).

The Forest Service will now proceed with the environmental analysispursuant to 36 CFR 228(a)(5) in conformity with the NationalEnvironmental Policy Act (NEPA). This analysis will proceed as aCategorical Exclusion, the lowest level of environment reviewsapplicable to projects that are not expected to have a significanteffect on the environment, such as Silver King.

Financing Update

Prismo also announced that further to its news releases dated October20, 2025 and November 13, 2025, the Company has proceeded with anupsized second closing of its previously announced non-brokeredprivate placement of units of the Company (“ Units ”) at an issue price of $0.10per Unit (the “ Private Placement ”). The second closing ofthe Private Placement was increased from 1,250,000 Units to theissuance of 1,650,000 Units for gross proceeds of $165,000 (the“ Second Tranche ”). TheCompany previously announced a first closing of the Private Placementon November 12, 2025 for aggregate gross proceeds of $1,745,000. Dueto strong investor demand, the Company has now raised aggregate grossproceeds of $1,910,000.

Each Unit consists of one common share in the capital of the Company(a “ Share ”) and one commonshare purchase warrant of the Company (a “ Warrant ”). Each Warrant entitlesthe holder to purchase one Share for a period of thirty-six (36)months from the date of issue at an exercise price of $0.175.

The Company intends to use the net proceeds of the Private Placementprimarily for drilling at its Silver King project and for generalcorporate purposes. The Company expects to accept additionalsubscriptions of units in the coming days for an approximate amount of$125,000.

The Units issued pursuant to the Second Tranche are subject to afour-month hold period from the closing date of the Second Trancheunder applicable Canadian securities laws, in addition to such otherrestrictions as may apply under applicable securities laws ofjurisdictions outside Canada.

In connection with the Second Tranche, the Companyissued an aggregate of 68,000 finder’swarrants (the “Finder’sWarrants” ) and paid finder’s commissions of $6,800 to acertain qualified finder. Each Finder’s Warrant is exercisable for aperiod of twenty-four (24) months from the date of issuance topurchase one Share at a price of $0.10. In addition, the Company paida cash fee of $2,000 to a financial advisor.

The securities being issued in connection with the Second Tranche havenot been and will not be registered under the U.S. Securities Act andmay not be offered or sold in the United States, or to, or for theaccount or benefit of, U.S. persons or persons in the United States,absent registration or an applicable exemption from the registrationrequirements. This press release shall not constitute an offer to sellor the solicitation of an offer to buy nor shall there be any sale ofthe securities in any State in which such offer, solicitation or salewould be unlawful.

QA/QC

Samples were analyzed by SGS, aninternationally recognized analytical lab, with preparation at theTempe, Arizona facility and analyses at the Burnaby laboratory. Prismo inserts controls samples consisting of a standard pulps and acoarse blanks in the sample stream, and the lab also inserts controlsamples.

Qualified Person

Dr. Craig Gibson, PhD., CPG., aQualified Person as defined by NI-43-01 regulations and ChiefExploration Officer and a director of the Company, has reviewed andapproved the technical disclosures in this news release.

About Prismo Metals Inc.

Prismo (CSE: PRIZ) is a mining exploration company focused onadvancing its Silver King, Ripsey and Hot Breccia projects in Arizonaand its Palos Verdes silver project in Mexico.

Please follow @PrismoMetals on Twitter , Facebook , LinkedIn , Instagram , and YouTube

Prismo Metals Inc.

1100 - 1111 Melville St., Vancouver, British Columbia V6E 3V6 Phone:(416) 361-0737

Contact:

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

Gordon Aldcorn, President gordon.aldcorn@prismometals.com

Neither the Canadian SecuritiesExchange nor its Market Regulator (as that term is defined in thepolicies of the Canadian Securities Exchange) accepts responsibilityfor the adequacy or accuracy of this release.

Cautionary Note RegardingForward-Looking Information

This release includes certainstatements and information that may constitute forward-lookinginformation within the meaning of applicable Canadian securities laws.Forward-looking statements relate to future events or futureperformance and reflect the expectations or beliefs of managementof the Company regarding future events. Generally, forward-looking statements and information can beidentified by the use of forward-looking terminology such as “ intends” or “ anticipates”, or variations of such words and phrases or statements that certain actions, events or results “ may”, “ could”, “ should”, “ would” or “ occur”. This information and these statements, referred toherein as "forward-looking statements", are not historicalfacts, are made as of the date of this news release and includewithout limitation, statements regarding discussions of future plans,estimates and forecasts and statements as to management'sexpectations and intentions with respect to, among other things: thetiming, costs and results of drilling at Silver King; and the intended use of any proceeds raisedunder the Second Tranche.

These forward-looking statements involve numerous risks and uncertainties, and actual results might differ materially from resultssuggested in any forward-looking statements. These risks anduncertainties include, among other things: the potential inability of the Company toutilize the anticipated proceeds of the Private Placement asanticipated; and those risksset out in the Company's public disclosure record on SEDAR+( www.sedarplus.com ) under the Company’s issuer profile .

In making the forward-lookingstatements in this news release, the Company has applied severalmaterial assumptions, including without limitation, that the Company will use the proceeds ofthe Second Tranche as currently anticipated and on the timelinecurrently expected.

Although management of the Company has attempted to identify important factors that could cause actual results to differ materiallyfrom those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated orintended. There can be no assurance that such statements will prove tobe accurate, as actual results and future events could differmaterially from those anticipated in such statements. Accordingly,readers should not place undue reliance on forward-looking statementsand forward- looking information. Readers are cautioned that reliance on such information may not be appropriate for otherpurposes. The Company does not undertake to update any forward-lookingstatement, forward-looking information or financial outlook that are incorporated by reference herein, except in accordance with applicable securitieslaws. We seek safe harbor.

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