Zacatecas Silver reports rock-chip samples up to 20.3 g/t gold, 3,480 g/t silver at Oso Negro project in Sonora, Mexico

• Zacatecas Silver reported Phase Two rock-chip results at its Oso Negro project in Sonora, Mexico, with highs of 20.3 g/t gold.
• Sampling also returned up to 3,480 g/t silver; mapping extended the gold-silver vein system beyond 3 km.
• Prospecto vein mineralization was confirmed along the full 600 m strike; veins reach 3 m width.
• Prospecto and Tere were flagged as drill-ready; diamond drilling plans were designed, with permitting underway.
• Phase Two added 354 samples, taking total rock-chip sampling to 510 across both phases.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Zacatecas Silver Corp. published the original content used to generate this news brief via GlobeNewswire (Ref. ID: 202609100630PRIMZONEFULLFEED9824360) on September 10, 2026, and is solely responsible for the information contained therein.