---
schema_version: "secwatch.filing_event.v1"
accession: "0001845437-25-000012"
form_type: "8-K"
ticker: "NPWR"
cik: "0001845437"
company_name: "NET Power Inc."
filed_at: "2025-03-21T23:59:59+00:00"
generated_at: "2026-05-24T09:07:51.826751+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# NET Power dismisses Grant Thornton as auditor, engages KPMG effective March 17, 2025

## Summary
- Audit committee dismissed Grant Thornton as independent auditor on March 17, 2025; no disagreements or reportable events reported.
- KPMG LLP engaged as new auditor for fiscal year 2025; prior consultation with KPMG did not occur.
- Grant Thornton's audit reports for 2024 and 2023 were unqualified and contained no adverse opinion.

## SEC filing metadata
- accession: 0001845437-25-000012
- form_type: 8-K
- ticker: NPWR
- cik: 0001845437
- company_name: NET Power Inc.
- filed_at: 2025-03-21T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1845437/000184543725000012/0001845437-25-000012-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1845437/000184543725000012/npwr-20250321.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001845437-25-000012
- JSON: https://secwatch.observer/filing/0001845437-25-000012.json
- Plain text: https://secwatch.observer/filing/0001845437-25-000012.txt

## Key facts
- Auditor Changes
  NET Power Inc. engaged KPMG LLP as its auditor.
  - Action: engagement
  - Auditor: KPMG LLP
  source text: On March 17 , 2025, the Audit Committee approved the engagement of KPMG LLP (“KPMG”) as the Company’s independent registered public accounting firm to audit the Company’s financial statements as of and for the fiscal year ending December 31, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1845437/000184543725000012/0001845437-25-000012-index.htm
- Auditor Changes
  NET Power Inc. dismissed Grant Thornton LLP as its auditor.
  - Action: dismissal
  - Auditor: Grant Thornton LLP
  - Successor: KPMG LLP
  source text: On March 17, 2025 , the audit committee (the “Audit Committee”) of the board of directors of NET Power Inc. (the “Company”) dismissed Grant Thornton LLP (“Grant Thornton”) as the Company’s independent registered public accounting firm.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1845437/000184543725000012/0001845437-25-000012-index.htm

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