---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-049911"
form_type: "8-K"
ticker: "MNTK"
cik: "0001826600"
company_name: "Montauk Renewables, Inc."
filed_at: "2025-03-07T23:59:59+00:00"
generated_at: "2026-05-25T03:56:26.536215+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Montauk Renewables ups loan from subsidiary to $10.69M in fifth amendment

## Summary
- Loan principal increased from $10.04M to $10.69M; interest rate remains 0.4% per annum.
- Maturity extended through December 31, 2033; interest may be paid in cash or PIK.
- Secured by 976,623 shares of Montauk Renewables common stock owned by borrower Montauk Holdings.
- Amendment amends and restates prior $10.04M note; no novation of existing obligations.
- Borrower must use 100% of net proceeds from any share sale to prepay loan.

## SEC filing metadata
- accession: 0001193125-25-049911
- form_type: 8-K
- ticker: MNTK
- cik: 0001826600
- company_name: Montauk Renewables, Inc.
- filed_at: 2025-03-07T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1826600/000119312525049911/0001193125-25-049911-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1826600/000119312525049911/d868774d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-049911
- JSON: https://secwatch.observer/filing/0001193125-25-049911.json
- Plain text: https://secwatch.observer/filing/0001193125-25-049911.txt

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