Mr. Alain Lambert reports

PRISMO METALS TO HOST WEBINAR ON JUNE 4TH, 2026

Prismo Metals Inc. is inviting investors and other interested parties to attend the company's upcoming live webinar presentation and audience question-and-answer session on June 4 at 1 p.m. PDT (4 p.m. EDT).

Chief executive officer Alain Lambert, chief exploration officer (CXO) Dr. Craig Gibson, CPG, and special adviser Dr. Linus Keating, CPG, will provide an update on exploration at the Silver King mine project. Silver King is a historic silver mine and Arizona's first and one of its most important historic silver producers, yielding nearly six million ounces of silver at grades of up to 61 ounces per ton. The Silver King mine sits only 3.4 kilometres from the main shaft of the Resolution copper project -- a joint venture between Rio Tinto and BHP and considered one of the world's largest unmined copper deposits.

The webinar will be a live, interactive on-line event where attendees can ask the presenters questions in real time. A recording will be available for those who cannot join the live event.

Event:  Radius Research pitch, deep dive and Q&A with Prismo Metals

Presentation date and time:  Thursday, June 4, at 4 p.m. ET/1 p.m. PT

Webcast registration:  on-line

This webinar will be hosted by Radius Research, giving individual investors access to in-depth CEO interviews with deep-dive institutional-level discussion and Q&A. Radius Research is part of Market Radius Capital, Inc. and hosted by Martin Gagel, a former top-ranked sell-side technology and special situations analyst.

About Silver King

Discovered in 1875, the Silver King mine is one of Arizona's most important historical producers, yielding nearly six million ounces of silver at grades of up to 61 ounces per ton. Selected samples from small-scale production in the late 1990s returned historical grades as high as 644 oz/t silver (18,250 grams per ton) and 0.53 oz/t gold (15 g/t). Additionally, the presence of freibergite silver-copper-antimony-sulfur (Ag-Cu-Sb-S) suggests a potential for antimony, a critical mineral with growing strategic demand.

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.

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.