Prismo Metals Completes Phase 1 Drill Campaign at Silver King

• On April 7 2026 Prismo Metals announced completion of Phase I diamond drilling at the Silver King project (8 holes, 1,272 m core).
• All holes intersected targeted quartz‑vein/stockwork mineralization; the deep hole SK‑26‑07 reached 1,600 ft (488 m) and showed potassic alteration with disseminated pyrite/chalcopyrite – signatures of a possible porphyry copper system at depth.
• Upper holes displayed extensive quartz‑baryte veins with visible silver‑bearing sulfides (freibergite, stromeyerite, acanthite, native Ag) and base‑metal sulfides (bornite, chalcopyrite, sphalerite, galena).
• The results expand the project’s potential from historic high‑grade silver to a polymetallic Ag‑Cu target situated only 3.4 km from the large Resolution Copper deposit.
• Assay samples from five holes have been submitted; remaining samples (SK‑26‑06 to SK‑26‑08) are to be sent later this week, with full results expected in 4–6 weeks (anticipated May 2026).
• Next steps include down‑hole geophysics, petrographic thin‑section analysis, multi‑element soil sampling, detailed structural/alteration mapping, and targeted deeper step‑out drilling (Phase II) to test the extent of the hypothesized Ag‑Cu system.
• Personnel update: appointment of Dr. Linus Keating as Special Advisor (expertise in porphyry systems, former Rio Tinto Principal Geologist‑Argentina).
• Management quotes emphasize excitement about the first clear indication of a possible copper‑bearing system at depth and note that what began as a high‑grade silver opportunity is now demonstrating links to a potentially larger prize.

The news provides an encouraging geological update but does not yet deliver assay grades or resource estimates. The identification of potassic alteration and disseminated chalcopyrite in the deep hole suggests a porphyry copper environment, which would materially enhance the project’s value if confirmed. However, because: - No quantitative copper or silver grades have been released; - The update follows an expected drilling program that was fully funded and permitted earlier in 2026; - Market reaction to similar early‑stage exploration updates has historically been modest unless assays return significant metal content, the announcement is best classified as a routine positive development rather than a material game‑changer. It advances the thesis but does not yet alter the investment case decisively.

Prismo Metals Inc. is a mineral exploration company focused on precious and base‑metal properties in Arizona, USA. Its flagship asset is the historic Silver King Mine located near Superior, AZ, approximately 3.4 km from the world‑class Resolution Copper joint venture (Rio Tinto/BHP). Silver King has produced ~6 million ounces of silver at grades up to 61 oz/ton and shows evidence of high‑grade silver‑bearing veins, base‑metal sulfides, and now indications of a deeper porphyry copper system. The company also holds interests in the Ripsey Gold project (patented land, high‑grade Au‑Ag‑Cu‑Zn assays) and previously held the Hot Breccia copper‑skarn project, which was transferred to Blade Resources via a strategic transaction in early 2026.