---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-118204"
form_type: "8-K"
ticker: "GORO"
cik: "0001160791"
company_name: "GOLD RESOURCE CORP"
filed_at: "2025-12-04T23:59:59+00:00"
generated_at: "2026-05-16T14:30:38.317113+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# GORO reports strong Two Sisters production and resumes Back Forty project

## Summary
- Two-week production: Nov 8-14 avg NSR $1,512/t (129% above model); Nov 15-21 avg NSR $723/t (91% above plan).
- CEO says results confirm Three Sisters area potential, though not expected on sustained basis.
- Strategic decision to resume Back Forty project in Michigan; feasibility study and permit process initiated.
- 2023 technical report showed gold price increase to $2,700 boosts NPV to ~$430M, up >100%.
- Project economics improved with current higher gold and zinc prices.

## SEC filing metadata
- accession: 0001104659-25-118204
- form_type: 8-K
- ticker: GORO
- cik: 0001160791
- company_name: GOLD RESOURCE CORP
- filed_at: 2025-12-04T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1160791/000110465925118204/0001104659-25-118204-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1160791/000110465925118204/goro-20251203x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-118204
- JSON: https://secwatch.observer/filing/0001104659-25-118204.json
- Plain text: https://secwatch.observer/filing/0001104659-25-118204.txt

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