Mr. Chris Herald reports

SOLITARIO FILES DRILLING PLAN OF OPERATIONS FOR ITS BRIGHT ANGEL GOLD - COPPER PROJECT

Solitario Resources Corp. has filed a plan of operations with the U.S. Forest Service to conduct core drilling on its Bright Angel gold-copper project in Colorado. Solitario's proposed maiden drilling program represents the first drilling to be conducted on the property since 1970, when Anaconda Copper drilled 11 core holes. At Bright Angel, mineralized porphyry stockwork contains significant values of gold and copper at surface. Mineralization has been traced over an area approximately 750 metres long and up to 600 metres wide.

Chris Herald, president and chief executive officer of Solitario, stated: "With both gold and copper trading near all-time highs and copper being designated as a critical metal by the U.S. government, we are very excited to move this project forward. Results from previous drilling point to a definitive, and potentially significant, gold-copper porphyry target.

"We believe that Bright Angel represents an alkalic pipelike porphyry characterized by high grades for both gold and copper with deep roots. Over the years, the industry's understanding of porphyry copper systems has evolved considerably. It is now recognized that an alkalic subclass, first clearly documented at the world-class Ridgeway-Cadia system in Australia, commonly hosts pipelike geometries, with higher copper and gold grades than calc-alkaline copper porphyry systems common in the Arizona and Chilean copper belts.

"We look forward to working with the U.S. Forest Service in executing an environmentally sound program that protects surface and water resources. The plan envisions very limited surface impacts with all drill holes completed to state and federal abandonment standards to protect groundwater systems."

History and geology of the Bright Angel project

Drilling at Bright Angel began in the late 1960s, when its initial owner completed 186 very shallow (approximately 16 metres) and widely spaced drill holes. Twelve of the more mineralized holes were deepened to depths of up to 200 metres. Two of the holes reportedly intersected significant grades of gold and copper but are not reported herein as Solitario is unable to verify the historic drill hole assay results. However, Solitario's surface rock sampling produced gold/copper grades (see Solitario news release dated Jan. 22, 2026) consistent with the grades in the upper 20 metres of the reported historic drill holes. Drilling will be required to confirm drill hole grades reported in the historic files.

Anaconda Copper, formerly one of the largest mining companies in the world, leased the property in 1970 and drilled 11 widely spaced core holes ranging in depth from 270 to 783 metres. Anaconda's exploration program was designed to test for a classic large-scale mushroom-shaped, calc-alkaline copper porphyry system common in the Arizona and Chilean copper belts. Calc-alkaline copper systems tend to be laterally extensive but gold poor.

Anaconda intersected significant sections of 0.1 per cent up to 0.3 per cent Cu in six of its core holes but generally did not assay for gold as gold price was fixed at $38 per ounce at that time and its exploration priority was a primary copper resource. Anaconda concluded that the Bright Angel porphyry was not a calc-alkaline porphyry system but continued to hold the lease for 10 years before exiting the mineral exploration business, when the property was dropped.

Plans are also under way to conduct a drone magnetic survey and possibly an induced polarization geophysical survey in the coming field season.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Walter Hunt, a qualified person as defined by Canadian National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

About Solitario Resources Corp.

Solitario is a natural resource exploration company focused on high-quality Tier 1 gold, copper, zinc and critical metal (molybdenum and rhenium) projects. Solitario's 100-per-cent-owned Golden Crest properties in South Dakota constitute strategic landholdings (31,500 acres) along the western and southwestern extensions of the Homestake-Wharf mining district that has produced approximately 52 million ounces of gold. Golden Crest is scheduled for a major drilling campaign in 2026.

In addition to its Bright Angel and Golden Crest projects, Solitario holds a 100-per-cent interest in the Cat Creek critical mineral project (molybdenum-rhenium) in Colorado, also slated for drilling in 2026. Solitario also has a 50-per-cent joint venture interest (Teck Resources 50 per cent) in the high-grade Lik zinc deposit in Alaska and a 39-per-cent joint venture interest (Nexa Resources 61 per cent) in the high-grade Florida Canyon zinc project in Peru. Both Florida Canyon and Lik represent advanced exploration projects with over $110-million spent collectively on the properties. Solitario is carried to production on its Florida Canyon project through its joint venture arrangement with Nexa.

The company is traded on the NYSE American and on the Toronto Stock Exchange. Solitario's management and directors hold approximately 8.0 per cent (excluding options), and Newmont Corp. owns 9.3 per cent of the company's 92.4 million shares outstanding. Solitario's cash position stands at approximately $8.2-million (U.S.).

Solitario has a long history of committed environmental, social and responsible governance of its business. It realizes ESG issues are also important to investors, employees and all stakeholders, including communities in which it works. It is committed to conducting its business in a manner that supports positive environmental and social initiatives and responsible corporate governance. Importantly, it works with joint venture partners that not only value the importance of ESG issues in the conduct of their business on its joint venture projects but are leaders in the industry in this important segment of its business.

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