Metallic Minerals Announces Filing of NI 43-101 Technical Report for the La Plata Project Mineral Resource Estimate, Colorado, USA
TSX.V: MMG | OTCQB: MMNGF
Metallic Minerals Announces Filing of NI 43-101 Technical Report for the La Plata Project Mineral Resource
Estimate, Colorado, USA
March 16, 2026 – Vancouver, BC – Metallic Minerals Corp. (TSX.V: MMG; OTCQB: MMNGF; FSE: 9MM1) (“Metallic”
or the “Company”) is pleased to report that, further to its January 26, 2026 news release, it has filed on SEDAR+ the
Na?onal Instrument 43-101 technical report en?tled “NI 43-101 Technical Report, Allard Cu-Ag-PGE-Au Porphyry
Deposit, La Plata Project, Southwestern Colorado, USA”. The Technical Report was prepared by SLR USA Advisory Inc.,
with an effec?ve date of January 23, 2026.
Greg Johnson, Chairman and CEO of Metallic Minerals, stated, “The recently filed 2026 NI 43-101 Mineral Resource
Es?mate at the La Plata project marks a major milestone for the Company. The updated es?mate expands the Inferred
resource tonnage by approximately 23% to 181.4 Mt at 0.36% copper equivalent, containing 1,307 Mlbs of copper and
17.0 Moz of silver (1,455 Mlbs CuEq). Importantly, this updated es?mate incorporates pla?num, palladium and gold for
the first ?me, with a 45.4 Mt subset now repor?ng 91,000 oz Pt, 121,000 oz Pd and 60,000 oz Au totaling ~272,000 oz
of pla?num group elements plus gold, which enhances the overall value and metal diversity of the deposit.
The La Plata project represents a rare large-scale U.S. based mineral system hos?ng many cri?cal minerals iden?fied as
strategically important to U.S. supply chains. Located in southwest Colorado, the project is an alkalic porphyry copper-
silver-PGE-gold system hos?ng a broad suite of cri?cal minerals within accessory phases including magne?te,
fluorapa?te, ?tanite, and zircon. These minerals collec?vely host light and heavy rare earth elements along with six
addi?onal priority cri?cal minerals including gallium, scandium, vanadium, ?tanium, zirconium and hafnium—many of
which face severe U.S. supply vulnerabili?es or 100% import dependence.”
In collabora?on with Columbia University, ongoing metallurgical work has demonstrated electrochemical recovery of
99.9% pure copper from La Plata mineraliza?on. These results support evalua?on of alterna?ve processing technologies
that may complement conven?onal mineral processing methods with addi?onal results from con?nued work pending.
Highlights from the January 2026 La Plata MRE News Release:
• The 2026 MRE consists of two con?nuous, adjoining mineralized shells: (i) a copper-silver shell based largely on
1950 to 1970s-era drill holes; and (ii) a copper-silver-pla?num-palladium-gold shell supported by Metallic’s
mul?-element drill core sampling.
• Metallic-era drill results of 8,240 m from the 2021 to 2023 drill and underground sampling programs support
the es?ma?on of a Cu-Ag-PGE+Au bearing subset that represents 25% of the total resource tonnage.
• The inclusion of co-occurring precious metals (Pt, Pd, and Au) results in a 17% higher copper-equivalent grade
for the 45.4 Mt subset (0.41% CuEq vs 0.35% CuEq) rela?ve to a copper-and-silver-only equivalent of the same
subset.
• Significant upside exists for further increases in equivalent grade and precious metal content across the broader
deposit with addi?onal drilling, due to limited historic assaying for gold, pla?num and palladium.
• The Allard resource is one of only three PGE-bearing development-stage resources in the USA and remains open
to expansion at depth and along strike.
• Sixteen (16) untested poten?al porphyry centers have been iden?fied on the greater La Plata project area, as
well as target areas with poten?al for significant high-grade epithermal silver, gold and telluride mineraliza?on.
With the Allard deposit remaining open at depth and along strike and numerous untested porphyry centers across the
district, there are very clear opportuni?es to grow this resource efficiently with addi?onal drilling, while con?nuing to
advance early-stage targets to new discoveries. The project team is currently working to finalize the next phases of
explora?on to include addi?onal resource expansion and drilling of new priority targets in 2026.
The Technical Report was authored by Brian Hartman, M.S., P . Geo of SLR USA Advisory Inc. (“SLR”) an independent
Qualified Person and was prepared in accordance with Na?onal Instrument 43-101 Standards of Disclosure for Mineral
Projects. The report is available under the Company’s profile at sedarplus.ca and will also be available on the
Company’s website at metallic-minerals.com.
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About SLR USA Advisory Inc.
SLR USA Advisory Inc. is an independent global consultancy providing environmental, engineering, and technical
advisory services to the mining industry across the full project lifecycle, from early explora?on through development,
opera?ons, and closure. SLR’s mining team has extensive experience in mineral resource es?ma?on, geological
modeling, technical repor?ng, and project evalua?on for a wide range of deposit types worldwide. The firm’s
mul?disciplinary team of Qualified Persons has completed hundreds of resource es?mates and technical assessments
and has significant exper?se in the prepara?on of reports compliant with Na?onal Instrument 43-101, the CIM Defini?on
Standards for Mineral Resources and Mineral Reserves (2014), and the CIM Es?ma?on of Mineral Resources and Mineral
Reserves Best Prac?ce Guidelines (2019).
About Metallic Minerals
Metallic Minerals Corp. is a resource-stage explora?on and development company advancing copper, silver, gold,
pla?num group elements, and other cri?cal minerals at the La Plata project in southwestern Colorado, and high-grade
silver explora?on at the Keno Silver project in the Yukon Territory, adjacent to Hecla Mining’s Keno Hill silver opera?ons.
The Company is also one of the largest holders of alluvial gold claims in the Yukon and is building a produc?on royalty
business through partnerships with experienced mining operators.
Metallic is led by a team with a strong track record of discovery and explora?on success across mul?ple precious and
base metal deposits in North America and is backed by strategic investment by Newmont Corpora?on and Eric Sproo.
The Company integrates advanced data analy?cs into its explora?on process to support target genera?on, accelerate
discovery, and unlock value across its porpolio.
Metallic’s project districts have a history of significant mineral produc?on and benefit from exis?ng infrastructure,
including road access and nearby power . The Company is commioed to responsible and sustainable resource
development, engaging and collabora?ng with Canadian First Na?ons, U.S. Tribal and Na?ve Corpora?ons, and local
communi?es to support long-term project advancement.
Upcoming Events
Metallic’s management team will be aoending several upcoming key industry events over the coming months and
welcomes the opportunity to meet with investors and stakeholders:
1. Swiss Mining Ins?tute Conference - Zurich, Switzerland, March 18-19, 2026.
2. SAFE Summit 2026 - Washington, D.C., USA, April 27-28, 2026.
3. Top Shelf Partners - Washington, D.C., USA, May 17-19, 2026.
4. Top Shelf Partners - Ft. Lauderdale, FL, USA, May 20-22, 2026.
FOR FURTHER INFORMATION, PLEASE CONTACT:
Website: metallic-minerals.com Phone: 604-629-7800
Email: [email protected] Toll Free: 1-888-570-4420
Qualified Person
The scien?fic and technical informa?on contained in this news release rela?ng to the La Plata Project mineral resource
es?mate and the associated NI 43-101 technical report has been reviewed and approved by Scoo Petsel, M.S., CPG,
P. G e o . , P r e s i d e n t o f M e t a l l i c M i n e r a l s C o r p . , w h o i s a Q u a l i fi e d P e r s o n a s d e fi n e d b y N a ? o n a l I n s t r u m e n t 4 3-101 –
Standards of Disclosure for Mineral Projects. Mr . Petsel is not independent of the Company.
Forward-Looking Statements
This news release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than
statements of historical facts including, without limitation, statements regarding potential mineralization, historic production, estimation
of mineral resources, the realization of mineral resource estimates, interpretation of prior exploration and potential exploration results,
the timing and success of exploration activities generally, the timing and results of future resource estimates, permitting timelines, metal
prices and currency exchange rates, availability of capital, government regulation of exploration operations, environmental risks,
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reclamation, title, statements about expected results of operations, royalties, cash flows, financial position and future dividends as well as
financial position, prospects, and future plans and objectives of the Company are forward-looking statements that involve various risks and
uncertainties. Although Metallic Minerals believes the expectations expressed in such forward-looking statements are based on reasonable
assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from
those in the forward-looking statements. Forward-looking statements are based on a number of material factors and assumptions. Factors
that could cause actual results to differ materially from those in forward-looking statements include failure to obtain necessary approvals,
unsuccessful exploration results, unsuccessful operations, changes in project parameters as plans continue to be refined, results of future
resource estimates, future metal prices, availability of capital and financing on acceptable terms, general economic, market or business
conditions, risks associated with regulatory changes, defects in title, availability of personnel, materials and equipment on a timely basis,
accidents or equipment breakdowns, uninsured risks, delays in receiving government approvals, unanticipated environmental impacts on
operations and costs to remedy same and other exploration or other risks detailed herein and from time to time in the filings made by the
Company with securities regulators. Readers are cautioned that mineral resources that are not mineral reserves do not have demonstrated
economic viability. Mineral exploration, development of mines and mining operations is an inherently risky business. Accordingly, the actual
events may differ materially from those projected in the forward-looking statements. For more information on Metallic Minerals and the
risks and challenges of their businesses, investors should review their annual filings that are available at sedarplus.ca.
Neither the TSX Venture Exchange nor its Regula7on Services Provider (as that term is defined in the policies of the TSX Venture Exchange)
accepts responsibility for the adequacy or accuracy of this release.