secwatch.observer — SEC 8-K summary
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Issuer:     U.S. GoldMining Inc. (USGO)
CIK:        0001947244
Form:       8-K
Filed at:   2026-03-23T23:59:59+00:00
Accession:  0001493152-26-012054
Event type: other_material
Sentiment:  positive
Materiality: 0.85
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Whistler PEA shows $2.0B after-tax NPV5%, 33% IRR, 2.1-year payback at base prices
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- After-tax NPV5% of $2.0B, IRR 33%, initial payback 2.1 years at base prices ($3,200/oz Au, $4.50/lb Cu, $37.50/oz Ag).
- At spot prices ($5,000/oz Au, $5.85/lb Cu, $70/oz Ag), after-tax NPV5% increases to ~$4.9B, IRR 62%, payback 1.2 years.
- Average annual production of 246,000 oz AuEq over 14.6-year mine life; first 3 years 345,000 oz AuEq annually.
- Initial capex of ~$1.3B (incl. 20% contingency), LOM AISC $1,046/oz Au (by-product basis).
- PEA considers only one of three deposits; exploration potential for additional targets.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1947244/000149315226012054/0001493152-26-012054-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1947244/000149315226012054/form8-k.htm
  HTML page:      https://secwatch.observer/filing/0001493152-26-012054

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