---
schema_version: "secwatch.filing_event.v1"
accession: "0001654954-23-008608"
form_type: "8-K"
ticker: "XPL"
cik: "0000917225"
company_name: "SOLITARIO RESOURCES CORP."
filed_at: "2023-06-30T23:59:59+00:00"
generated_at: "2026-06-13T14:33:11.932913+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Solitario Zinc appoints Assure CPA as new auditor, replacing Plante & Moran

## Summary
- Audit Committee approved Assure CPA, LLC as independent auditor on June 29, 2023.
- Plante & Moran resigned at company's request; no disagreements or reportable events in 2021-2022.
- Prior audit reports for 2021 and 2022 were unqualified with no adverse opinions.
- New auditor selected via RFP process; no pre-appointment consultations on accounting or auditing.

## SEC filing metadata
- accession: 0001654954-23-008608
- form_type: 8-K
- ticker: XPL
- cik: 0000917225
- company_name: SOLITARIO RESOURCES CORP.
- filed_at: 2023-06-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/917225/000165495423008608/0001654954-23-008608-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/917225/000165495423008608/sodi_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001654954-23-008608
- JSON: https://secwatch.observer/filing/0001654954-23-008608.json
- Plain text: https://secwatch.observer/filing/0001654954-23-008608.txt

## Key facts
- Auditor Changes
  Plante & Moran, PLLC resigned as auditor of SOLITARIO RESOURCES CORP..
  - Action: resignation
  - Auditor: Plante & Moran, PLLC
  - Successor: Assure CPA, LLC
  source text: Solitario’s prior engagement with Plante & Moran, PLLC (“Plante Moran”) as the Company’s independent registered public accounting firm has been concluded with the resignation of Plante Moran at the request of the Company. The request for resignation of Plante Moran was considered and approved by the Audit Committee.
  evidence_url: https://www.sec.gov/Archives/edgar/data/917225/000165495423008608/0001654954-23-008608-index.htm
- Auditor Changes
  SOLITARIO RESOURCES CORP. engaged Assure CPA, LLC as its auditor.
  - Action: engagement
  - Auditor: Assure CPA, LLC
  source text: (“Solitario”) approved the appointment of Assure CPA, LLC (“Assure”) as Solitario’s independent registered public accounting firm.
  evidence_url: https://www.sec.gov/Archives/edgar/data/917225/000165495423008608/0001654954-23-008608-index.htm

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