secwatch.observer — SEC 8-K summary
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Issuer:     U.S. GoldMining Inc. (USGO)
CIK:        0001947244
Form:       8-K
Filed at:   2025-09-22T23:59:59+00:00
Accession:  0001493152-25-014390
Event type: other_material
Sentiment:  positive
Materiality: 0.70
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Whistler gold recovery improves to 85.3% via flotation+leach, up 22% from prior test
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- Combined flotation and cyanide leach achieved 85.3% Au, 79.1% Cu, 55.3% Ag recoveries.
- Copper concentrate graded 23.7% Cu with 0.6% mass pull; leach recovered additional 31.2% Au from tails.
- Previous metallurgy yielded ~70% Au recovery; new 22% increase due to sequential leach step.
- Test program used master composite representing average Whistler deposit resource grade (0.68 g/t AuEq).
- Results provide key inputs for the ongoing Preliminary Economic Assessment (PEA).

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1947244/000149315225014390/0001493152-25-014390-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1947244/000149315225014390/form8-k.htm
  HTML page:      https://secwatch.observer/filing/0001493152-25-014390

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