---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-006753"
form_type: "8-K"
ticker: "LIQT"
cik: "0001307579"
company_name: "LIQTECH INTERNATIONAL INC"
filed_at: "2022-03-18T23:59:59+00:00"
generated_at: "2026-06-26T21:37:57.125975+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# LiqTech CEO Sune Mathiesen takes medical leave; board member Alex Buehler appointed Interim CEO

## Summary
- CEO Sune Mathiesen began medical leave of absence effective March 17, 2022.
- Board member Alexander J. Buehler appointed Interim CEO, effective immediately.
- Buehler resigned as Audit Committee Chair and from Compensation and Governance Committees.
- Richard Meeusen appointed as Audit Committee Chair, effective March 17, 2022.
- Buehler's compensation adjustments not yet determined; amendment to be filed.

## SEC filing metadata
- accession: 0001437749-22-006753
- form_type: 8-K
- ticker: LIQT
- cik: 0001307579
- company_name: LIQTECH INTERNATIONAL INC
- filed_at: 2022-03-18T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1307579/000143774922006753/0001437749-22-006753-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1307579/000143774922006753/liqt20220318_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-006753
- JSON: https://secwatch.observer/filing/0001437749-22-006753.json
- Plain text: https://secwatch.observer/filing/0001437749-22-006753.txt

## Key facts
- Executive change
  Alexander Buehler was appointed as Interim Chief Executive Officer at LIQTECH INTERNATIONAL INC.
  - Action: appointed
  - Role: Interim Chief Executive Officer
  source text: the Company’s Board of Directors (the “ Board ”) has appointed Alexander Buehler, a current member of the Board, as the Company’s Interim Chief Executive Officer, effective March 17, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1307579/000143774922006753/0001437749-22-006753-index.htm

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