---
schema_version: "secwatch.filing_event.v1"
accession: "0000783324-25-000039"
form_type: "8-K"
ticker: "VGZ"
cik: "0000783324"
company_name: "VISTA GOLD CORP"
filed_at: "2025-07-29T23:59:59+00:00"
generated_at: "2026-05-17T23:54:13.007530+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Vista Gold reports positive feasibility study for Mt Todd: after-tax NPV $1.1B at $2,500/oz, IRR 27.8%

## Summary
- After-tax NPV 5% of $1.1B, IRR 27.8%, payback 2.7 years at $2,500/oz gold.
- At spot $3,300/oz: after-tax NPV $2.2B, IRR 44.7%, payback 1.7 years.
- Initial capital $425M, 59% lower than 2024 FS; capital efficiency $93/oz.
- Average annual gold production 153k oz years 1-15; AISC $1,449/oz.
- Proven & Probable reserves: 171.975 Mt at 0.94 g/t containing 5.19 Moz gold.

## SEC filing metadata
- accession: 0000783324-25-000039
- form_type: 8-K
- ticker: VGZ
- cik: 0000783324
- company_name: VISTA GOLD CORP
- filed_at: 2025-07-29T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/783324/000078332425000039/0000783324-25-000039-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/783324/000078332425000039/vgz-20250729x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000783324-25-000039
- JSON: https://secwatch.observer/filing/0000783324-25-000039.json
- Plain text: https://secwatch.observer/filing/0000783324-25-000039.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.