Daily Mining Update
Daily Mining Update

Daily Mining Update (May 25, 2026): Cygnus Drill Results, J2’s Sierra Plata Option, and Mexico Copper/Silver Updates

Daily Mining Update highlights notable mining and natural resource developments published over the past 24–48 hours, including fresh drill results, project option/transaction updates, and exploration plans across gold, silver, copper and critical minerals.

Key stories

Cygnus Metals: final Golden Eye assays ahead of resource update (Quebec)

  • Cygnus Metals reported final infill drilling results from the Golden Eye deposit at its Chibougamau Copper-Gold Project in Quebec, including intervals up to 3 m at 39.5 g/t AuEq (35.0 g/t Au, 3.1% Cu and 30.6 g/t Ag). Business Insider / GlobeNewswire release
  • The company said these results will be incorporated into an updated resource, and it also noted drilling has begun at the Gwillim gold prospect to establish an initial resource. Business Insider / GlobeNewswire release

J2 Metals: TSX-V approves option to acquire Sierra Plata (Mexico silver-gold-antimony)

  • J2 Metals announced that the TSX Venture Exchange approved its definitive option agreement with Impact Silver to acquire 100% of the 2,203-hectare Sierra Plata silver-gold-antimony project near Taxco, Guerrero State, Mexico, over a three-year period. Newsfile
  • J2 highlighted waste-rock sampling results including 3,868 g/t AgEq (12.8 g/t Au and 3,100 g/t Ag), and said near-term work includes geophysics, mapping, sampling/trenching and drill-permit applications ahead of drilling. Newsfile

Oroco Resource: long-interval copper results at Santo Tomás (Sinaloa)

  • Oroco reported initial Phase 2 resource-drilling results from the South Zone at its Santo Tomás copper project in Choix, Sinaloa, Mexico, including 228.55 m at 0.49% CuEq in hole S022 and 212.33 m at 0.44% CuEq in hole S023. GlobeNewswire
  • The company said additional holes are planned to follow up a higher-grade core in the South Zone and that Phase 2 is intended to support resource conversion and collect data for future studies. GlobeNewswire

Silver Storm: drill results at La Parrilla; 2026 program expanded

  • Silver Storm reported drill results from the C550 and C535 zones at its La Parrilla Silver Mine Complex in Durango, Mexico, and said the initial 6,000 m program will be expanded by an additional 9,000 m. Morningstar / ACCESS Newswire
  • Among the reported highlights, the company noted an interval of 441 g/t Ag.Eq over 21.72 m (ETW 3.8 m) in hole IDP-QB-26-021 at the C535 zone. Morningstar / ACCESS Newswire

Sonoro Gold: C$10M private placement for Cerro Caliche (Sonora)

  • Sonoro Gold announced a non-brokered private placement of up to 40,000,000 units at C$0.25 per unit for gross proceeds of C$10,000,000. Investing News Network
  • Each unit consists of one common share and one warrant (three-year term; exercise price C$0.34), with proceeds intended to advance development of the Cerro Caliche gold project in Sonora, Mexico, and for working capital. Investing News Network

GoldHaven Resources: highlighting tungsten and indium at Magno (BC)

  • GoldHaven highlighted tungsten and indium exposure at its district-scale Magno Project in northern British Columbia, including tungsten values up to 6,550 ppm and indium values up to 334 ppm. Business Insider / GlobeNewswire release
  • The company said 2026 planning is underway, with permitting and exploration planning expected to include airborne geophysics and drill targeting. Business Insider / GlobeNewswire release

Disclaimer: This article is for informational purposes only and is not financial advice.

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