Prismo Metals

Investor Insight

Prismo Metals’ high-grade silver and copper assets in Arizona, anchored by the Silver King project, offer investors exposure to near-surface polymetallic mineralization and large-system copper potential in a tier-one US jurisdiction, guided by an accomplished technical team. Prismo also retains strategic silver-gold leverage through its Palos Verdes joint program with Vizsla Silver in Mexico, creating a balanced portfolio designed for discovery and growth.

Overview

Prismo Metals (CSE:PRIZ,OTCQB:PMOMF,FSE:7KU) is a North American exploration company focused on advancing high-grade silver, gold and copper discoveries in Arizona, one of the world’s most productive and mining-friendly jurisdictions. The company’s projects, Silver King, Ripsey and Hot Breccia, position Prismo at the forefront of exploration in the Arizona Copper Belt, an area that hosts some of the largest copper deposits on Earth.

The historic Silver King mine produced nearly 6 million ounces of silver during the 1880s.

At the center of Prismo’s focus is the Silver King project, a historic silver mine adjacent to BHP and Rio Tinto’s giant Resolution Copper operation. Along with the nearby Ripsey Mine and Hot Breccia project, these assets form a complementary pipeline targeting both bonanza-grade gold and district-scale copper systems.

In Mexico, Prismo continues to advance its Palos Verdes project through a strategic partnership with Vizsla Silver, Prismo’s largest shareholder, providing investors exposure to one of the richest silver-gold districts in the Americas.

Prismo’s business strategy combines technical excellence, modern exploration technologies and disciplined capital allocation to advance near-term drilling and long-term discovery growth across its portfolio.

Company Highlights

• Arizona-focused Exploration: Advancing a portfolio of high-grade silver, copper and gold projects – Silver King, Ripsey and Hot Breccia – in the heart of the Arizona Copper Belt.
• Exceptional Grades and Momentum: Sampling at Silver King returned 619 g/t silver and 511 g/t silver, as well as 757 g/t silver, 1.5 percent copper, 6.7 percent lead, and 11.5 percent zinc from a newly identified polymetallic vein. An expanded 1,000-meter Phase 2 drill program is planned.
• Strategic Land Position: Projects are surrounded by major producers, including BHP/Rio Tinto’s Resolution Copper and Freeport’s Christmas Mine, offering unmatched geological and infrastructure advantages.
• AI-driven Copper Discovery: Hot Breccia, a large-scale copper-gold target, combines historic Kennecott and Phelps Dodge drilling with new ZTEM geophysics and AI-based drill targeting for a 5,000 m program.
• Partnership Strength: In Mexico, Prismo maintains silver-gold exposure through its Palos Verdes project in collaboration with Vizsla Silver, which is also Prismo’s largest shareholder holding 6.1 percent ownership.
• Tight Share Structure: With only 83.6 million shares outstanding, a market cap of $12.1 million (as of October 14th, 2025) and 28.7 percent insider and advisor ownership, Prismo’s management is closely aligned with shareholders

Key Projects

Silver King

The 125-hectare Silver King project lies entirely within the Resolution Copper claim block, about 3 km from the main Resolution shaft and 1 km from the historic Magma mine. Discovered in 1875, it produced roughly 6 million ounces of silver between 1875 and 1928 at grades up to 61 ounce per ton (oz/t) silver. Small-scale production in the 1990s returned up to 644 oz/t silver and 0.53 oz/t gold.

Recent sampling by Prismo confirmed strong silver-copper-lead-zinc mineralization, including 619 grams per ton (g/t) silver and 511 g/t silver from the Silver King shaft area, and 757 g/t silver, 1.5 percent copper, 6.7 percent lead, and 11.5 percent zinc from a newly identified polymetallic vein. The assay results for both silver and copper demonstrate the high-grade nature of the system.

Following these recent results, Prismo plans a second-phase drill program totaling approximately 1,000 meters to test new polymetallic and copper-bearing targets as well as a large replacement-style zone. The company has submitted a plan of operations for drilling to the US Forest Service, with additional site permits in progress.

Ripsey Mine

Located 20 km west of Hot Breccia and south of the Ray mine, the Ripsey mine covers 30 hectares of patented claims and hosts a historic gold-silver-copper vein system traced over 400 meters along strike and 160 meters vertically. The property saw limited production in the early 20th century and has never been explored with modern methods.

View of open stope on the Ripsey vein near the main shaft

Sampling by Dr. Craig Gibson returned values up to 15.9 g/t gold and 275 g/t silver over 0.75 meters, confirming strong near-surface mineralization with significant expansion potential. Further surface exploration at Ripsey is planned..

Hot Breccia

The Hot Breccia Project, spanning 1,420 hectares, provides Prismo with large-scale copper-gold optionality in the heart of Arizona’s Copper Belt. The project is located 40 km south of Resolution Copper and 35 km north of the San Manuel-Kalamazoo deposit. It hosts the same productive units as Freeport’s nearby Christmas mine, which historically produced high-grade copper skarn ore.

Historic drilling by Kennecott and Phelps Dodge intersected copper-rich skarn mineralization, including 77 ft of 0.54 percent copper, 60 ft of 1.4 percent copper and 4.65 percent zinc, and 25 ft of 1.73 percent copper. A 2023 ZTEM survey and subsequent AI analysis identified a large conductive anomaly at depth, consistent with a porphyry copper system.

Located near major infrastructure, including highways, power, water and the Hayden smelter, Hot Breccia is Prismo’s largest-scale copper discovery opportunity.

Palos Verdes

The Palos Verdes project provides Prismo with strategic exposure to silver and gold in Mexico’s prolific Panuco-Copala district, where Vizsla Silver (TSXV:VZLA) is advancing a billion-dollar silver resource. Prismo’s concession sits at the northeastern end of the district and is fully surrounded by Vizsla’s ground.

Drill site for hole PV-24-34 of the current drill program

To date, Prismo has drilled approximately 6,052 meters across 33 holes, identifying a near-surface, high-grade ore shoot within the Palos Verdes vein. Results include 102 g/t gold and 3,100 g/t silver (11,520 g/t silver equivalent over 0.5 m), comparable to some of the best intercepts in the district.

Future exploration will focus on deeper drilling and potential extensions of the vein system into adjacent Vizsla concessions, as guided by the joint Prismo-Vizsla technical committee chaired by Dr. Peter Megaw and Dr. Craig Gibson.

Management Team

Alain Lambert – CEO and Co-founder

Alain Lambert is a lawyer with over 35 years of experience financing and advising small and mid-sized companies across technology, manufacturing and natural resources. He has participated in private and public financings exceeding $1 billion and built an extensive network of investors, bankers, analysts and IR professionals. Lambert has served as a director and on audit and governance committees for several public and private companies. He holds an LL.B. from the University of Montréal and a diploma in administration from College Jean-de-Brébeuf, Montréal.

Gordon Aldcorn – President

Gordon Aldcorn brings more than 20 years of experience in capital markets and junior public company development. Over the past five years, he has focused on the corporate management of copper and gold exploration projects, with a strong track record of advancing early-stage assets. Committed to responsible mineral exploration and long-term stakeholder engagement, Aldcorn now leads Prismo Metals through a pivotal growth phase, advancing its high-potential projects in Arizona and Mexico.

Craig Gibson – Co-founder and Chief Exploration Officer

Dr. Craig Gibson has extensive experience in the minerals industry. He received his Bachelor of Science (1984) in Earth Sciences from the University of Arizona and Master of Science (1987) and PhD (1992) in Economic Geology and Geochemistry from the Mackay School of Mines, University of Nevada, Reno. He co-founded Prospeccion y Desarrollo Minero del Norte, S.A. de CV (ProDeMin) based in Guadalajara, Mexico, in 2009. ProDeMin is a consulting firm providing a broad spectrum of exploration-related services to the mining industry and has been involved in several major precious metal discoveries in Mexico. Gibson is also a director of Garibaldi Resources, a Vancouver-based junior exploration company; a certified professional geologist of the American Association of Professional Geologists; and a qualified person under NI 43-101.

Carmelo Marelli – CFO and Corporate Secretary

Carmelo Marrelli is the principal of the Marrelli Group, comprising Marrelli Support Services, DSA Corporate Services, DSA Filing Services, Marrelli Press Release Services, Marrelli Escrow Services, and Marrelli Trust Company. The Marrelli Group has delivered accounting, corporate secretarial and regulatory compliance services to listed companies on various exchanges for over 20 years. Marrelli is a chartered professional accountant (CPA, CA, CGA), and a member of the Institute of Chartered Secretaries and Administrators, a professional body that certifies corporate secretaries. He received a Bachelor of Commerce degree from the University of Toronto. Marrelli acts as the chief financial officer to several issuers on the TSX, TSX Venture Exchange and CSE, as well as non-listed companies, and as a director of select issuers.

Martin Dupuis – Director

Martin Dupuis has over 25 years of experience covering all stages of a project’s life, from exploration through feasibility and engineering studies, construction, mine expansion and operations. Dupuis serves as Vizsla Silver’s chief operating officer. He was instrumental in the oversight and delivery of the company’s maiden resource estimate. Before joining Vizsla Silver, Dupuis was director of geology for Pan American Silver, technical services manager for Aurico Gold, and chief geologist at several other operations.

Louis Doyle – Director

Louis Doyle has over 30 years of experience in capital markets and public companies. Since 2016, he has served as executive director of Québec Bourse and has advised private companies seeking Canadian exchange listings. Previously, he was vice-president, Montréal at the TSX Venture Exchange (1999–2015), where he oversaw business development and listings in Québec and Atlantic Canada, chaired the listing committee, served on the policy committee, and led the national mentorship program. Doyle also holds directorships with two other public companies.

Peter Megaw – Advisor and Significant Shareholder

Dr. Peter Megaw is best known as co-founder of MAG Silver and Minaurum Gold. He and his team are credited with MAG Silver’s Juanicipio discovery in the famous Fresnillo District, for which he received the Thayer Lindsley Award in 2017. He received his doctorate from the University of Arizona and has more than 35 years of experience exploring silver and gold in Mexico. Megaw is a certified professional geologist by the American Institute of Professional Geologists and an Arizona registered professional geologist. He is the author of numerous scientific publications on ore deposits and is a frequent speaker at academic and international exploration conferences. Megaw also received the Society of Mining Engineers 2012 Robert M. Dreyer Award for excellence in applied economic geology.

Steve Robertson – Advisor

Steve Robertson brings 35 years of mining industry experience, with a focus on precious metals and copper exploration in North America. He has co-founded and managed multiple exploration companies, including Infinitum Copper, where as CEO he led the public listing and project acquisitions in Sonora, Mexico, and Arizona, USA. Previously, he founded Sun Metals, where his team made a significant copper-gold discovery and completed two corporate mergers.