| Prismo Reports High Grade Gold along with Silver, Copper and Zinc Mineralization at Ripsey Mine 
 600-meter Drill Target Along Strike Confirmed
 
 thenewswire.com
 
 Vancouver, British Columbia – TheNewswire - October 16th, 2025 – Prismo Metals Inc. (“Prismo” or the “Company”)  (CSE: PRIZ) (OTCQB: PMOMF) is pleased to report that it has received  assay results from 15 samples taken at the Ripsey Mine Project in  Arizona. The samples returned high grade gold and silver along with  copper and zinc from the surface and in shallow underground workings.   The samples cover about 600 meters of strike length, significantly  extending the mineralization and drill potential.
 
 “The Company’s first samples from the Ripsey mine are  quite spectacular, with high grade gold, silver, copper and zinc from  surface as well as underground exposures. One of the samples reported assayed at 14.7 Au g/t, greater than 100 Ag/t (overlimit results pending), 3.28 Cu%, and 3.26 Zn %,” said Dr. Craig Gibson, Chief Exploration Officer. “What  is also exciting is that all this exploration work was done in  conjunction with the work we are already doing in preparation for  drilling our Silver King project. Additional mapping and sampling at the  Ripsey mine is planned while exploration at Silver King is ongoing and  our first phase of drilling is being planned.”
 
 “To be able to come close to defining a new almost-ready  drill target on patented land so close to our Silver King project means  we will be able to fast-track this exploration and create synergies and  efficient budgeting at both our focus property Silver King as well as  dovetailing in this new opportunity at Ripsey” said Gordon Alcorn,  President. “This joint exploration from the same base essentially  doubles our ability to advance these projects efficiently in terms of  time and resources.”
 
 “In less than three months our exploration team led by  our Chief Exploration Officer Dr. Craig Gibson has confirmed the  potential of the Silver King project and now the Ripsey project,” said  Alain Lambert, CEO of Prismo. “The option agreement on the Ripsey  project has the unique particularity of not having any minimum  exploration expenditure requirements during its five-year term. This  provides maximum flexibility to Prismo on how and when to allocate  exploration budgets between the two projects. Another positive aspect of  the Ripsey project is that a drill permit will not be required as it is  located on patented land.”
 
 
 
 
   
 
   
 Table 1. Assay results for selected samples from the Ripsey Mine project
 
 
 
 
 NB: >100 indicates overlimit results pending| Sample 
 
 | Location 
 
 | Easting 
 
 | Northing 
 
 | Width m 
 
 | Au g/t 
 
 | Ag g/t 
 
 | Cu % 
 
 | Pb % 
 
 | Zn % 
 
 |  | 544101 
 
 | East surface 
 
 | 502,639 
 
 | 3,651,725 
 
 | 1.5 
 
 | 2.98 
 
 | 60.40 
 
 | 1.62 
 
 | 0.01 
 
 | 0.23 
 
 |  | 544102 
 
 | East surface 
 
 | 502,679 
 
 | 3,651,748 
 
 | 0.5 
 
 | 0.02 
 
 | 1.80 
 
 | 0.79 
 
 | - 
 
 | 1.56 
 
 |  | 544103 
 
 | East surface 
 
 | 502,745 
 
 | 3,651,782 
 
 | 1.0 
 
 | 0.79 
 
 | 3.82 
 
 | - 
 
 | 0.24 
 
 | 0.24 
 
 |  | 544104 
 
 | East tunnel 
 
 |  |  | 0.6 
 
 | 14.7 
 
 | >100 
 
 | 3.28 
 
 | 0.42 
 
 | 3.26 
 
 |  | 544105 
 
 | East tunnel 
 
 |  |  | 0.7 
 
 | 3.24 
 
 | 82.39 
 
 | 1.69 
 
 | 0.21 
 
 | 5.11 
 
 |  | 544106 
 
 | East tunnel 
 
 |  |  | 0.6 
 
 | 3.14 
 
 | >100 
 
 | 3.46 
 
 | 0.36 
 
 | 6.52 
 
 |  | 544107 
 
 | East tunnel 
 
 |  |  | 0.8 
 
 | 3.05 
 
 | >100 
 
 | 4.85 
 
 | 0.71 
 
 | 7.83 
 
 |  | 544108 
 
 | East tunnel 
 
 |  |  | 0.75 
 
 | 1.42 
 
 | 68.10 
 
 | .30 
 
 | 0.16 
 
 | 3.39 
 
 |  | 544110 
 
 | Main stope 
 
 | 502,320 
 
 | 3,651,688 
 
 | 1.5 
 
 | 2.66 
 
 | 57.53 
 
 | .37 
 
 | 0.01 
 
 | 0.18 
 
 |  | 544111 
 
 | Main stope 
 
 | 502,309 
 
 | 3,651,688 
 
 | 0.4 
 
 | 0.06 
 
 | 1.36 
 
 | - 
 
 | - 
 
 | - 
 
 |  | 544112 
 
 | Main shaft 
 
 | 502,288 
 
 | 3,651,688 
 
 | 0.75 
 
 | 14.6 
 
 | >100 
 
 | 0.60 
 
 | 0.20 
 
 | 0.18 
 
 |  | 544113 
 
 | Vein HW 
 
 | 502,250 
 
 | 3,651,677 
 
 | 0.75 
 
 | 0.75 
 
 | 42.50 
 
 | 0.17 
 
 | 0.10 
 
 | - 
 
 |  | 544114 
 
 | Vein FW 
 
 | 502,250 
 
 | 3,651,677 
 
 | 0.75 
 
 | 0.11 
 
 | 5.10 
 
 | - 
 
 | - 
 
 | - 
 
 |  | 544115 
 
 | East Shaft 
 
 | 502,420 
 
 | 3,651,693 
 
 | 1.5 
 
 | 1.19 
 
 | 18.57 
 
 | 0.11 
 
 | - 
 
 | - 
 
 | 
 
 
   
 Figure 1.  Map  showing the location of the Ripsey mine workings, claim boundary in  light blue, and the Ripsey vein in red, now explored for about 600  meters along strike.
 
 
   
 Figure 2.  Map showing the Ripsey mine and Au assays.  Triangle symbols indicate samples taken from underground workings.
 
 
  Click Image To View Full Size
 
 Figure 3.  Map showing the Ripsey mine and Ag assays.  Triangle symbols indicate samples taken from underground workings.
 
 
   
 Figure 4.  Map showing the Ripsey mine and Cu assays.  Triangle symbols indicate samples taken from underground workings.
 
 Additional Assay Results from Silver King
 
 In addition to the results at Ripsey,  Prismo has received assays for a second batch of samples taken at the  Silver King project in Arizona. These new assays build on the results discussed in the News Release of September 24, 2025.
 
 Samples from what appear to be the northward extension of  the polymetallic vein east of the Silver King glory hole yielded 47 g/t  Ag, 3.43 % Pb and 3.42 % Zn (Fig. 6).  Also, an additional vein was  identified in a small prospect about 100 meters southwest of the Silver  King mine which returned anomalous values for silver and base metals.
 
 
 Table 1. Assay results for selected samples from the Silver King project
 
 
 The mapping and sampling program at the Silver King  project not only expanded the drill targets with the identification of  two additional veins and zones of replacement mineralization but also  identified a felsic intrusion with strong sericite alteration and  moderate to strong stockwork of quartz-pyrite veins near the Black  Diamond replacement body. This porphyry intrusion is exposed within  an erosional window inside a widespread and less altered quartz diorite  intrusion and may represent the upper portions of a porphyry system.   This area was explored by Fischer-Watt Mining Co. in 1980 and 19811.   Fischer-Watt geologists concluded that the strongly  quartz-sericite-pyrite body was probably related to the upper parts of a  porphyry system based on rock geochemistry showing copper, molybdenum  and zinc anomalies centered on the body, the alteration assemblages  present, and the presence of high salinity fluid inclusions in the  stockwork quartz veins.| Sample 
 
 | Location 
 
 | Easting 
 
 | Northing 
 
 | Width m 
 
 | Au g/t 
 
 | Ag g/t 
 
 | Cu % 
 
 | Pb % 
 
 | Zn % 
 
 |  | 544521 
 
 | Pit west of SK 
 
 | 491,763 
 
 | 3,687,752 
 
 | Dump 
 
 | 0.01 
 
 | 38.28 
 
 | 0.14 
 
 | 0.39 
 
 | 0.12 
 
 |  | 544522 
 
 | Polymetallic vein? 
 
 | 492,023 
 
 | 3,687,793 
 
 | Dump 
 
 | 0.08 
 
 | 47.16 
 
 | 0.01 
 
 | 3.43 
 
 | 3.42 
 
 |  | 544556 
 
 | Black Diamond 
 
 | 492,686 
 
 | 3,687,651 
 
 | 0.6 
 
 | 0.09 
 
 | 0.89 
 
 | 1.67 
 
 | - 
 
 | - 
 
 |  | 544557 
 
 | Black Diamond 
 
 | 492,676 
 
 | 3,687,650 
 
 | 0.5 
 
 | 0.44 
 
 | 10.51 
 
 | 2.52 
 
 | - 
 
 | - 
 
 | 
 
 Based  on these encouraging geological observations, the Company has elected  to fast-track an induced polarization (IP) survey over the property.   This survey is scheduled to commence next week and is expected to take  two to three weeks to complete.
 
 
 
   
 Figure 5.  Map showing new copper assays at the Silver King project.
 
 
   
 Figure 6.  Map showing new silver assays at the Silver King project.
 
 
  Click Image To View Full Size
 
 Figure 7.  Location map for the Ripsey mine in the Arizona Copper Belt.  The  project is located about 20 km west of the Company’s Hot Breccia deposit  and about 40 km southeast of the Silver King mine.
 
 1Haynes, F. and Reynolds, 1980, Silver King Breccia Pipe Prospect, unpublished report, Fischer-Watt Mining Co., 5p.
 
 QA/QC
 
 Samples were analyzed by SGS, an internationally  recognized analytical lab, with preparation at the Tempe, Arizona  facility and analyses at the Burnaby laboratory. Prismo inserts controls  samples consisting of standard pulps and coarse blanks in the sample  stream for QA/QC purposes and also utilizes the lab’s internal control  samples.
 
 Qualified Person
 
 Dr. Craig Gibson, PhD., CPG., a Qualified Person as  defined by NI-43-01 regulations and Chief Exploration Officer and a  director of the Company, has reviewed and approved the technical  disclosures in this news release.  The historic data presented in this  press release was obtained from public sources, should be considered  incomplete and is not qualified under NI 43-101, but is believed to be  accurate. The Company has not verified the historical data presented and  it cannot be relied upon, and it is being used solely to aid in  exploration plans. References to mineralization at the Magma Mine and  Resolution Copper deposit is not necessarily indicative to the  mineralization on the Silver King property.
 
 About the Silver King
 
 Discovered in 1875, the Silver King mine was one of Arizona’s  most important historic producers, yielding nearly 6 million ounces of  silver at grades of up to 61 oz/t.  The Silver King mine sits only 3 km  from the main shaft of the Resolution Copper project — a joint venture  between Rio Tinto and BHP and one of the world’s  largest unmined copper deposits with an estimated copper resource of  1.787 billion metric tonnes at an average grade of 1.5% copper(1). The unique land position is fully surrounded by Resolution Copper’s  claim block, offering strategic upside. Selected samples from  small-scale production in the late 1990s returned grades as high as 644  oz/t silver (18,250 g/t) and 0.53 oz/t gold (15 g/t), indicating that  high-grade mineralization remains.
 
 About Prismo Metals Inc.
 
 Prismo (CSE: PRIZ) is a mining exploration company  focused on advancing its Silver King, Ripsey and Hot Breccia projects in  Arizona and 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
 
 Cautionary Note Regarding Forward-Looking Information
 
 This release includes  certain statements and information that may constitute forward-looking  information within the meaning of applicable Canadian securities laws.  Forward-looking statements relate to future events or future performance  and reflect the expectations or beliefs of management of the Company  regarding future events. Generally, forward-looking statements and  information can be identified 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 to herein as "forward-looking statements", are not  historical facts, are made as of the date of this news release and  include without limitation, statements regarding discussions of future  plans, estimates and forecasts and statements as to management's  expectations and intentions with respect to, among other things: the  timing, costs and results of drilling at Silver King.
 
 These forward-looking statements  involve numerous risks and uncertainties, and actual results might  differ materially from results suggested in any forward-looking  statements. These risks and uncertainties include, among other things:  delays in obtaining or failure to obtain appropriate funding to finance  the exploration program at Silver King.
 
 In making the forward-looking  statements in this news release, the Company has applied several  material assumptions, including without limitation, that: the ability to  raise capital to fund the drilling campaign at Silver King and the  timing of such drilling campaign.
 
 Although management of the Company has  attempted to identify important factors that could cause actual results  to differ materially from those contained in forward-looking statements  or forward-looking information, there may be other factors that cause  results not to be as anticipated, estimated or intended. There can be no  assurance that such statements will prove to be accurate, as actual  results and future events could differ materially from those anticipated  in such statements. Accordingly, readers should not place undue  reliance on forward-looking statements and forward-looking information.  Readers are cautioned that reliance on such information may not be  appropriate for other purposes. The Company does not undertake to update  any forward-looking statement, forward-looking information or financial  outlook that are incorporated by reference herein, except in accordance  with applicable securities laws. We seek safe harbor.
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