Prismo Metals samples up to 757 g/t Ag at Silver King

Mr. Alain Lambert reports PRISMO METALS RECEIVES HIGH SILVER AND COPPER ASSAYS AT SILVER KING Prismo Metals Inc. has received final assay results, including overlimits for the first batch of 23 samples taken at the Silver King project located in Arizona. The new assays include 619 grams per tonne silver and 511 g/t Ag for two samples taken at the Silver King shaft area, as well as 757 g/t Ag, 1.5 per cent copper, 6.7 per cent lead and 11.5 per cent zinc for the recently encountered polymetallic vein. Preliminary assay data were described in a news release dated Sept. 24, 2025. "The overlimit assays for silver highlight the high-grade nature of both the mineralization around the Silver King mine and the recently encountered polymetallic vein. The results confirm the significance of the recently discovered polymetallic vein as a new exploration target at the Silver King project," said Dr. Craig Gibson, chief exploration officer. "Overlimit copper assays ranging from 1.11 per cent to 2.43 per cent copper for three samples from the replacement mineralization area provides encouraging data for this style of mineralization. The replacement mineralization occurs along strike with the stratigraphic horizon at the nearby Magma mine and occurs as a large body on the Black Diamond claim." Drill program update Prior to the discovery of the mineralized veins and porphyry-related-style mineralization announced recently, Prismo had planned a drill program at the historic Silver King mine for about 1,000 metres. That drill plan was designed to test the upper half of the steeply dipping pipe-like Silver King mineralized body as well as potential mineralization adjacent to the dense stockwork that was the focus of historic mining. Following the recent discoveries, Prismo is planning to add second phase of drilling for an additional 1,000 metres. This additional program will focus on the newly identified targets outside of the historic mining area, such as the polymetallic vein and the copper vein mentioned above. Drilling of a large body of replacement mineralization on the patented Black Diamond claim is also being planned and is road accessible on private ground. "Much of the focus of the exploration program to date has consisted of a property-wide survey of historic mines and prospects surrounding the direct Silver King workings," said Gordon Aldcorn, president of Prismo. "This work has expanded our geological thinking and resulted in the recognition of several new types of mineralization at the project, providing additional targets for exploration. Prismo has already submitted a plan of operations for the drill program with Forest Services. Some of the drilling sites considered for the new targets will be subject to further permitting applications." Quality assurance/quality control Samples were analyzed by SGS, an internationally recognized analytical lab, with preparation at the Tempe, Ariz., facility and analyses at the Burnaby laboratory. Prismo inserts control 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 National Instrument 43-101 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 were obtained from public sources, should be considered incomplete and are not qualified under NI 43-101 but are believed to be accurate. The company has not verified the historical data presented and they cannot be relied upon, and they are being used solely to aid in exploration plans. References to mineralization at the Magma mine and Resolution copper deposit are 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 six million ounces of silver at grades of up to 61 ounces per ton. The Silver King mine sits only three kilometres 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 million metric tonnes at an average grade of 1.5 per cent copper. 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 ounces per ton silver (18,250 g/t) and 0.53 ounce per ton gold (15 g/t), indicating that high-grade mineralization remains. About Prismo Metals Inc. Prismo 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. We seek Safe Harbor.