---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-25-002270"
form_type: "8-K"
ticker: "GORO"
cik: "0001160791"
company_name: "GOLD RESOURCE CORP"
filed_at: "2025-03-05T23:59:59+00:00"
generated_at: "2026-05-25T09:31:39.182051+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Gold Resource Corp reports 10% increase in Mineral Reserves at Don David Gold Mine

## Summary
- Mineral Reserves at Dec 31, 2024 increased 10% in tonnes vs Dec 31, 2023, replacing 2024 mined reserves.
- Three Sisters vein system: Mineral Reserves up >800% (526,152 t vs 57,890 t); Resources up 180% (662,749 t vs 234,014 t).
- 2024 drilling program: 12,760 m in 87 underground holes contributed to the reserve growth.
- S-K 1300 Technical Report Summary effective Dec 31, 2024 filed with SEC; prepared by Qualified Persons.

## SEC filing metadata
- accession: 0001558370-25-002270
- form_type: 8-K
- ticker: GORO
- cik: 0001160791
- company_name: GOLD RESOURCE CORP
- filed_at: 2025-03-05T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1160791/000155837025002270/0001558370-25-002270-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1160791/000155837025002270/goro-20250305x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-25-002270
- JSON: https://secwatch.observer/filing/0001558370-25-002270.json
- Plain text: https://secwatch.observer/filing/0001558370-25-002270.txt

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