Mr. Tim Shearcroft reports

BP SILVER DISCOVERS MULTIPLE NEW VEINS AND BRECCIA STRUCTURES AT THE COSUNO SILVER PROJECT

BP Silver Corp.'s recent geological mapping has discovered multiple new veins and breccia structures, extending the mineralized corridor to approximately 3.5 kilometres at the Cosuno silver project in Bolivia. To date, the company has collected more than 200 new chip and channel samples, with assay results currently pending.

Geological mapping within the Jalsuri target and the new target areas of Jalsuri Northeast and Jalsuri North has identified 16 outcropping veins and breccia structures, including one structure with an inferred strike length of approximately 1,000 metres and widths of up to 40 metres. The aggregate length of veins and breccia structures at these Jalsuri target areas sums to approximately 2,100 m.

Stewart D. Redwood, director and qualified person, commented: "The Cosuno silver system has been extended to the northeast by geological mapping and channel sampling, which has identified multiple new veins and breccias of different orientations and up to 1,000 m in length. These show the robustness and scale of the Cosuno silver system and potentially constitute important new drill targets."

Key highlights: Jalsuri, Jalsuri Northeast and Jalsuri North targets

Recent exploration at three of the four Jalsuri targets -- Jalsuri, Jalsuri Northeast and Jalsuri North -- has significantly advanced the company's understanding of the structures controlling silver mineralization in the area. A key result is the identification of 16 prominent vein and breccia structures that sum to over 2,100 m of strike length. In addition to the prominent veins and breccias, geological mapping has recorded numerous minor structures and microveining with variable orientations within the vein field. The observation of widespread stockwork mineralization outside of the discrete veins puts forth the potential for a bulk-tonnage target in addition to the higher-grade vein targets. To date, 200 new chip and channel samples have been collected across the area.

Jalsuri:

• Four short drill holes from Cosuno's phase 1 drill program at the Jalsuri target returned a best result of 29.0 m grading 56.03 grams per tonne silver and 0.28 g/t gold (75.15 g/t silver equivalent) in breccia (see news release dated Feb. 2, 2026).
• Geologists have identified outcropping breccia to the northwest of Jalsuri (breccia No. 7), displaying mineralogical and textural characteristics similar to those observed at the Jalsuri structure. Geologists believe this outcropping breccia extends the Jalsuri breccia by an additional 100 m.

Jalsuri Northeast (new target):

• Two principal east-west-trending structures, dipping north, have been mapped.
  • The northern east-west structure extends for approximately 1,000 m, representing the most significant mineralized structure identified to date in the Jalsuri area.
  • The southern east-west structure occurs as an outcropping breccia (breccia No. 4) located approximately 100 m south of the northern structure. It is interpreted as a split from the northern structure. This breccia is approximately 60 m in strike length and 10 m in width.

Jalsuri North (new target) -- secondary structural corridor

A northwest-southeast-trending vein structure has been delineated, with a strike length exceeding 300 m (vein No. 3). This vein is interpreted to be a continuation of the Jalsuri structure, as outlined above.

• In addition to the 300-metre structure, there are two subordinate north-south trending structures (vein No. 9 and vein No. 8), which disappear to the south under cover indicating a potential for concealed targets.
• Detailed mapping has recorded the widespread presence of numerous veinlets and disseminated sulphide and sulphosalt minerals between the principal mapped veins, suggesting the potential for a bulk-tonnage target.

Mapping and channel sampling will continue at all four Jalsuri targets, as well as at the other targets occurring throughout the Cosuno project area. Continuing fieldwork is focused on further defining the scale, continuity and structural controls of mineralization in advance of future drill testing.

To date, BP Silver has collected over 520 chip and channel samples across the property since the project's inception, including more than 200 samples collected during the current exploration campaign. Additional sampling remains in progress. The first batch of assay results is anticipated to be received by the first week of June, with results expected to be announced shortly thereafter.

Qualified person

The technical information contained in this news release has been reviewed and approved by Dr. Stewart D. Redwood, PhD, FIMMM, a director of the company, a qualified person as defined under National Instrument 43-101 (Standards of Disclosure for Mineral Projects). As Dr. Redwood is a director of the company, he is not independent under National Instrument 43-101.

About BP Silver Corp.

BP Silver is a Canadian exploration company focused on advancing high-grade silver projects in Bolivia. The company's flagship asset, the Cosuno project, is strategically located in the prolific Bolivian silver belt, a region with a rich mining history and significant untapped discovery potential. With a strong technical team and a disciplined exploration strategy, BP Silver is positioned to unlock value for its shareholders through the discovery and development of major silver deposits.

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