Astra drills 5,199 m at La Manchuria to date

Executive Summary

• Astra Exploration Inc. is approximately halfway through its 10,000-metre Phase II drill program at the La Manchuria gold and silver project in Argentina, with 5,119 metres completed in 25 holes.
• Initial assay results are expected in December, with the majority of results anticipated in early 2026; drilling has paused to await these results and will resume in early 2026.
• Key geological highlights include a significant strike extension of the West Feeder vein system, the definition of the first continuous vein in the Eastern zone, and the discovery of a new parallel vein structure.

Key Details

• Drilling Progress: 5,119 metres of diamond drill holes in 25 holes completed out of a planned 10,000-metre Phase II program.
• Timeline: Initial assays expected in December; bulk of results returned in early 2026. Drilling paused for results, resuming in early 2026.
• West Feeder Vein System: Significant strike extension observed; strike length of the Main zone extended from approximately 500 to 800 metres, particularly in the West Feeder veins.
• Eastern Zone: Definition of the first continuous vein with a minimum strike length of approximately 200 metres and extending up to 150 metres deep below the surface.
• New Target: A new parallel vein structure identified approximately 350 metres northeast of the Eastern zone.
• Geophysical Modeling: A newly constructed 3-D geophysical model is accurately predicting veins below surface and has proven effective for targeting mineralized veins beneath the surface.
• Pre-Drilling Work: Completed comprehensive geological mapping and reprocessing of geophysical data, including an expansion of regional ground magnetics by 150 line kilometres.
• Resistivity Reprocessing: Identified fault blocks and optimal elevations to target prospective veins in downthrown blocks to the northwest and southeast of the West Feeder vein system in the Main zone.
• Road Zone: First two drill holes completed at a newly defined target located 350 metres east of the Eastern zone.
• Investor Event: CEO Brian Miller to present at the Precious Metals & Critical Minerals Virtual Investor Conference on Dec. 3 at 4 p.m. Eastern Time.

Notable Quotes

• Diego Guido, Exploration Director: "The strike length of the Main zone has been extended from approximately 500 to 800 metres, particularly in the West Feeder veins. We have also confirmed the first continuous vein of at least 200 metres of strike length and up to 150 metres deep in the Eastern zone and have intersected a new parallel structure about 350 metres northeast of the Eastern zone."
• Diego Guido, Exploration Director: "The recently constructed 3-D geophysical model has demonstrated to be a powerful tool for targeting mineralized veins beneath surface. We will continue testing the model with more drilling inside the existing survey boundary and will expand that survey to other areas of the project prior to restarting drilling."