Dr. Tim Coughlin reports

ROYAL ROAD EXPANDS HIGH-GRADE SILVER-GOLD-ANTIMONY VEIN SYSTEM AND ADVANCES PORPHYRY VECTORING AT MARGARITAS, COLOMBIA

Royal Road Minerals Ltd. has released results from geological mapping and surface sampling at its Margaritas target, part of the Guintar-Aleman-Margaritas project in Colombia.

New mapping has substantially expanded the known footprint of high-grade silver-gold-antimony carbonate-base-metal veins and breccias at Margaritas to an area of approximately 400 by 450 metres. The vein system remains open to the north and at depth, with newly identified veins extending beyond the area tested by previous drilling.

The emerging model at Margaritas is of an extensive and potentially economically significant high-grade silver-gold-antimony vein and breccia system developed within and potentially above a much broader hydrothermal system. Surface mapping has also identified porphyry-style alteration northeast of the drilled area, providing an additional vector toward the potential porphyry source previously interpreted at Margaritas.

Located approximately four kilometres south of the Guintar porphyry discovery (see press release dated Dec. 14, 2021), Margaritas was previously tested by a single diamond drilling program comprising four drill holes. That drilling intersected multiple high-grade silver-gold-antimony veins and breccias within much broader zones of lower-grade hydrothermal mineralization.

High-grade vein system expanded

Previous drilling at Margaritas intersected multiple high-grade silver-gold-antimony veins and breccias, including four metres at 631 grams per tonne silver, 0.47 per cent antimony and 0.41 g/t gold from 177 metres in MAR-DD-002; five metres at 333 g/t silver, 0.28 per cent antimony and 1.18 g/t gold from 171 metres in MAR-DD-003; and four metres at 191 g/t silver, 0.03 per cent antimony and 0.46 g/t gold from 48 metres in MAR-DD-004 (not true widths and the company does not have sufficient information to estimate true widths; see press release dated June 9, 2026).

Recent surface mapping has identified additional undrilled CBM veins north of the previous drilling and extensions to previously identified structures, substantially expanding the interpreted footprint of the silver-gold-antimony vein and breccia system to approximately 400 by 450 metres. Mineralization is interpreted to extend to at least 330 metres below surface, and remains open to the north and at depth.

Rock chip sampling of the newly identified veins returned up to 229 g/t silver from a historically mined vein and 116 g/t silver with 1.75 g/t gold from an area of dense veining. A large mineralized breccia boulder within the expanded footprint returned 475 g/t silver, 987 parts per million antimony and 0.90 g/t gold. Its size suggests a potentially nearby bedrock source that remains to be located.

The 62 rock chip samples collected at Margaritas returned up to 475 g/t silver (range: 0.09 to 475 g/t, mean: 22.2 g/t), 5.53 g/t gold (range: 0.0025 to 5.53 g/t, mean: 0.33 g/t), 987 ppm antimony (range: 0.2 to 987 ppm, mean: 45.9 ppm) and 4.59 per cent zinc (range: 0.0012 to 4.59 per cent, mean: 0.122 per cent).

Porphyry vectoring

Previous drilling at Margaritas intersected broad zones of lower-grade mineralization, including 304 metres and 231 metres grading approximately 0.3 g/t gold equivalent from surface to end of hole in MAR-DD-003 and MAR-DD-004, respectively. These broad intersections were previously interpreted by the company as potentially representing the upper or peripheral expression of a larger hydrothermal system that predates the silver-gold-antimony vein system.

Recent surface mapping northeast of the drilled area has identified potassic alteration with disseminated pyrrhotite and elevated gold values in rock chip samples. The company considers this alteration significant as a potential vector toward the source of the broader hydrothermal system and a possible porphyry target.

Planned drilling

Drilling at Margaritas during the current GAM campaign will test the expanded high-grade vein system along strike and at depth, including newly identified veins outside of the area of previous drilling. Drilling will also test the significance of the porphyry-style alteration identified northeast of the current drilled area.

"Our initial drilling at Margaritas demonstrated that the high-grade silver-gold-antimony veins are potentially significant. What has changed is our understanding of their scale," said Dr. Tim Coughlin, Royal Road's president and chief executive officer. "Mapping has now extended the vein system well beyond the area previously drilled and identified numerous veins that have never been tested. Importantly, these veins are potentially significant mineralized bodies in their own right, developed within a much broader hydrothermal system. At the same time, new porphyry-style alteration provides us with an additional vector towards an underlying porphyry system. Our next drilling will therefore test the scale and continuity of the high-grade veins while continuing to vector towards a possible additional porphyry target."

About the GAM project

The GAM project is wholly owned by Royal Road and is located approximately 50 kilometres west of Medellin in the department of Antioquia, Colombia. The project comprises the Guintar and Margaritas mining concession contracts, in addition to El Aleman mining and Chuscalita mining concession contracts. The Guintar and Margaritas mining concession contracts were obtained through Royal Road's acquisition of Northern Colombia Holdings Ltd., a wholly owned subsidiary of AngloGold Ashanti Ltd. (see press release dated May 31, 2019). El Aleman and Chuscalita are subject to option agreements pursuant to which Royal Road holds the exclusive right to acquire a 100-per-cent interest (see press releases dated Jan. 12, 2026, and Dec. 14, 2021).

About Royal Road Minerals Ltd.

Royal Road Minerals is a mineral exploration and development company with its head office and technical operations centre located in Jersey, Channel Islands. The company is listed on the TSX Venture Exchange under the ticker RYR, on the OTCQB under the ticker RRDMF and on the Frankfurt Stock Exchange under the ticker RLU. The company's mission is to apply expert skills and innovative technologies to the process of discovering and developing copper and gold deposits of a scale large enough to benefit future generations and modern enough to ensure minimum impact on the environment and no net loss of biodiversity. The company currently explores in the kingdoms of Saudi Arabia and of Morocco and in Colombia.

The scientific and technical information contained in this news release has been prepared, reviewed and approved by Dr. Coughlin, BSc (geology), MSc (exploration and mining geology), PhD, FAusIMM, president and chief executive officer of Royal Road, a qualified person as defined under National Instrument 43-101.

Quality assurance and quality control

Sample preparation and analyses are conducted according to standard industry procedures. Drill core and saw-cut channel samples are crushed, split and pulverized prior to analysis of gold by fire assay and atomic absorption and multielements by ICP-AES and ICP-MS after four-acid digestion. Analytical performance is monitored by means of certified reference materials, coarse blanks, and coarse and pulp duplicate samples. Surface samples have been prepared in ALS Chemex preparation lab in Colombia, and analyses have been completed in ALS Chemex Lima.

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