Metallic Minerals Corp. announced additional results from the 2022 field program at the Keno Silver project in the historic Keno Hill silver district of the Yukon: Canada's most important silver mining district. These results cover the West Keno area and represent the second in a series of results to be released from the Company's 2022 exploration program, which included 3,265 meters (m) of diamond core drilling in 23 drill holes focused on expansion of advanced stage, "resource-ready" targets in anticipation of an inaugural NI 43-101 mineral resource estimate in 2023.

Exploration in 2022 at West Keno focused on drilling at the advanced-stage Formo target, which produced silver at various times since the 1930s from high-grade vein structures that graded over 1,000 g/t silver1. Formo is a significant inholding within the neighbouring Hecla Mining property and is on trend with the historic Hector-Calumet Mine, which produced nearly 100 million ounces of silver making it the largest individual mine in the district. 2022 West Keno Exploration highlights: High-grade silver (Ag), lead (Pb) and zinc (Zn) mineralization was encountered in five of seven holes.

Both high-grade Ag-Pb-Zn vein-style mineralization and broader zones of moderate grade Ag-Pb-Zn mineralization were encountered. A total of 40 high-grade samples of over 100 g/t silver equivalent ("Ag Eq") were intercepted in the 2022 West Keno drilling, including: FOR22-01, 0.54 m @ 2,291 g/t Ag Eq (1,139 g/t Ag, 18.32% Pb, 14.79% Zn); FOR22-02, 0.5 m @ 1,025.1 g/t Ag Eq (14 g/t Ag, 0.07% Pb, 23.36% Zn); FOR22-04, 1.63 m @ 1,536.2 g/t Ag Eq (1,049.5 g/t Ag, 4.21% Pb, 9.45% Zn); FOR22-04, 0.64 m @ 2,127.9 g/t Ag Eq (1,358 g/t Ag, 4.16% Pb, 16.42% Zn); FOR22-05, 0.5 m @ 1,215.3 g/t Ag Eq (850 g/t Ag, 7.65% Pb, 3.97% Zn). All five holes encountering significant silver mineralization in 2022 also intercepted broad bulk-tonnage zones averaging 26.2 m @ 85.6 g/t Ag Eq comprised of multiple high-grade vein intervals with associated stringers and stockwork veining.

West Keno 2022 Drilling Program: Drilling at West Keno focused on the advanced-stage "resource-ready" Formo target area. A total of seven holes were completed over 1,145.6 meters on known projections of mineralization with the goal of expanding the potential resource footprint of the deposit in anticipation of an inaugural 43-101 mineral resource estimate in 2023. Previous drilling has recognized at least three separate parallel high-grade Ag-Pb-Zn vein structures and results of the 2022 drilling continue to demonstrate multiple vein zones in each hole with individual grades commonly more than 1,000 g/t Ag Eq.

The Formo target represents one of the highest-grade areas drilled to date on Metallic's Keno Silver Property with 4.1 m of 2,536 g/t Ag Eq (FOR20-03) and 1 m of 2,961.6 g/t Ag Eq (FOR21-06) as examples of drill results from previous years efforts. West Keno and the Formo Area Target: The Western Keno Hill district is host to the largest historic production and current resources in the prolific Keno Hill silver district. The Formo target is located at the intersection of a north-easterly structural zone extending from the Hector-Calumet mine, which was the largest producer in the district producing nearly 100 million ounces of silver and the Elsa structural trend, which was the second largest silver producer in the district.

The Formo property, which include the Formo Mine, also known as the Yukeno Mine, was acquired by Metallic Minerals in 2017. The historic Formo mine produced high-grade silver at various times since the 1930s from high-grade vein structures that graded over 1,000 g/t silver1. Significant underground exploration drifts were developed in the 1950s with most of the historic production from an open pit located alongside of the Silver Trail highway between the Elsa townsite and Keno City and last mined in the 1980s.

The primary Formo vein structure is exposed at surface in an open cut. Multiple veins have been encountered in the target area that demonstrate an association with Triassic greenstones in the Earn group schist, similar to the Sadie Ladue deposit which produced 12.7 Moz silver at a grade of 1,620 g/t Ag1. In addition to the mineralization at the known Formo deposit, two new surface targets have been identified through soil and rock sampling along the same structural corridors that show potential to host high-grade and bulk tonnage Keno-style Ag-Pb-Zn veins on the Formo property.

Since 2020 Metallic Minerals has drilled 22 holes (3,306.9 m) at the Formo Target to compliment the six core holes and 54 percussion holes drilled by previous owners between 1980 and 1981. The Formo Target is open to significant expansion opportunities and is poised to lead the Company's efforts to establish resources on the Keno Silver Project.