---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-124288"
form_type: "8-K"
ticker: "AUMN"
cik: "0001011509"
company_name: "Golden Minerals Co"
filed_at: "2023-12-07T23:59:59+00:00"
generated_at: "2026-06-07T15:58:32.748498+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Golden Minerals sells Santa Maria property for $1.5M cash plus 1.5% NSR royalty

## Summary
- Received $1.5M cash and $0.24M VAT for 100% interest in Santa Maria gold-silver property in Mexico.
- Granted 1.5% net smelter return royalty on the concession, capped at $1.0M.
- TSM may purchase the royalty right for $0.5M before commercial production begins.
- Sale completed December 1, 2023; press release issued December 5, 2023.

## SEC filing metadata
- accession: 0001104659-23-124288
- form_type: 8-K
- ticker: AUMN
- cik: 0001011509
- company_name: Golden Minerals Co
- filed_at: 2023-12-07T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.0, 7.01, 9.01, 2.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1011509/000110465923124288/0001104659-23-124288-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1011509/000110465923124288/tm2332376d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-124288
- JSON: https://secwatch.observer/filing/0001104659-23-124288.json
- Plain text: https://secwatch.observer/filing/0001104659-23-124288.txt

## Key facts
- M&A Transactions
  Golden Minerals Co completed a disposition involving Transformaciones y Servicios Metalurgicos S.A. DE C.V. for $1.5 million in cash and $0.24 million in Value-Added Tax (closed 2023-12-01).
  - Action: disposition
  - Counterparty: Transformaciones y Servicios Metalurgicos S.A. DE C.V.
  - Consideration: $1.5 million in cash and $0.24 million in Value-Added Tax
  - Closing: 2023-12-01
  source text: On December 1, 2023, Golden Minerals Company (the “Company”) completed the previously announced sale (the “Sale”) of the Company’s 100% interest in the Santa Maria mining claims located in Chihuahua State, Mexico to Transformaciones y Servicios Metalurgicos S.A. DE C.V. (“TSM”) pursuant to the Contract of Assignment of Mining Rights, dated as of December 1, 2023 (the “Agreement”). In connection with the Sale, the Company received $1.5 million in cash and $0.24 million in Value-Added Tax (“VAT”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1011509/000110465923124288/0001104659-23-124288-index.htm
- Material Agreements
  Golden Minerals Co entered into Contract of Assignment of Mining Rights with Transformaciones y Servicios Metalurgicos S.A. DE C.V. valued at $1.5 million in cash and $0.24 million in Value-Added Tax (effective 2023-12-01).
  - Action: entry
  - Agreement: asset purchase
  - Counterparty: Transformaciones y Servicios Metalurgicos S.A. DE C.V.
  - Value: $1.5 million in cash and $0.24 million in Value-Added Tax
  - Effective: 2023-12-01
  source text: On December 1, 2023, Golden Minerals Company (the “Company”) completed the previously announced sale (the “Sale”) of the Company’s 100% interest in the Santa Maria mining claims located in Chihuahua State, Mexico to Transformaciones y Servicios Metalurgicos S.A. DE C.V. (“TSM”) pursuant to the Contract of Assignment of Mining Rights, dated as of December 1, 2023 (the “Agreement”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1011509/000110465923124288/0001104659-23-124288-index.htm

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