---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-032901"
form_type: "8-K/A"
ticker: "MUX"
cik: "0000314203"
company_name: "McEwen Inc."
filed_at: "2023-03-15T23:59:59+00:00"
generated_at: "2026-06-18T02:33:48.091256+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# McEwen Copper sells $30M in shares to Nuton (Rio Tinto); amends collaboration agreement

## Summary
- Nuton purchased 350,000 McEwen Copper shares for $6.56M via preemptive right; 1.25M shares for $23.44M from company.
- Transactions completed March 15, 2023; total cash proceeds to McEwen Copper and McEwen Mining of $30M.
- Amendment grants Nuton preemptive rights after IPO, right of first refusal on future funding, and information rights.
- Extension of Nuton's exclusivity for heap-leach technology; company and McEwen waive drag-along rights on Nuton shares.
- Definitive agreements executed March 9, 2023 include Subscription Agreement, Share Purchase Agreement, and Amendment No. 1.

## SEC filing metadata
- accession: 0001104659-23-032901
- form_type: 8-K/A
- ticker: MUX
- cik: 0000314203
- company_name: McEwen Inc.
- filed_at: 2023-03-15T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/314203/000110465923032901/0001104659-23-032901-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/314203/000110465923032901/tm239555d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-032901
- JSON: https://secwatch.observer/filing/0001104659-23-032901.json
- Plain text: https://secwatch.observer/filing/0001104659-23-032901.txt

## Key facts
- Material Agreements
  McEwen Inc. entered into Subscription Agreement with Nuton LLC valued at $6,562,500 (effective 2023-03-09).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: Nuton LLC
  - Value: $6,562,500
  - Effective: 2023-03-09
  source text: A Private Placement Subscription Agreement dated as of March 9, 2023 between Nuton and McEwen Copper (“ Subscription Agreement ”) sets forth the terms and conditions pursuant to which the purchase and sale of McEwen Copper common stock from that entity would be effected.
  evidence_url: https://www.sec.gov/Archives/edgar/data/314203/000110465923032901/0001104659-23-032901-index.htm
- Material Agreements
  McEwen Inc. entered into Share Purchase Agreement with Nuton LLC valued at $23,437,500 (effective 2023-03-09).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: Nuton LLC
  - Value: $23,437,500
  - Effective: 2023-03-09
  source text: A Share Purchase Agreement among the Company, McEwen Copper, Minera Andes Inc. and Nuton, also dated March 9, 2023, sets forth the terms and conditions upon which the Company, through one of its subsidiaries, would sell the McEwen Copper common stock to Nuton (“ Share Purchase Agreement ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/314203/000110465923032901/0001104659-23-032901-index.htm
- Material Agreements
  McEwen Inc. amended Amendment No. 1 to the Original Collaboration Agreement with Nuton LLC (effective 2023-03-09).
  - Action: amendment
  - Agreement: collaboration
  - Counterparty: Nuton LLC
  - Effective: 2023-03-09
  source text: Contemporaneously with the execution of the Subscription Agreement and the Share Purchase Agreement on March 9, 2023, the Company, McEwen Copper, Mr. McEwen and Nuton entered into Amendment No. 1 to the Original Collaboration Agreement.
  evidence_url: https://www.sec.gov/Archives/edgar/data/314203/000110465923032901/0001104659-23-032901-index.htm

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