---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-26-003952"
form_type: "8-K"
ticker: "ASPI"
cik: "0001921865"
company_name: "ASP Isotopes Inc."
filed_at: "2026-06-23T12:00:37+00:00"
generated_at: "2026-06-23T12:05:33.301499+00:00"
event_type: "other"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Tetra4 (Renergen subsidiary) signs first helium take-or-pay contract with Asian gases firm

## Summary
- Five-year contract at >$600/MCF of contained helium, representing ~15% of Phase 1 nameplate capacity.
- Phase 1 helium production of ~70 MCF/day targeted for Q3 2026; Phase 2 ~900 MCF/day, construction starts 2H 2026.
- Conditional approval for up to $750M senior debt ($500M DFC + $250M Standard Bank) for Phase 2.
- Recent drilling flow rates up to 16x earlier wells; cumulative nameplate flow rate achieved March 2026.
- Helium market sees supply disruptions from Qatar (damage at Ras Laffan) and Russian export controls.

## SEC filing metadata
- accession: 0001477932-26-003952
- form_type: 8-K
- ticker: ASPI
- cik: 0001921865
- company_name: ASP Isotopes Inc.
- filed_at: 2026-06-23T12:00:37+00:00
- event_type: other
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1921865/000147793226003952/0001477932-26-003952-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1921865/000147793226003952/aspi_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-26-003952
- JSON: https://secwatch.observer/filing/0001477932-26-003952.json
- Plain text: https://secwatch.observer/filing/0001477932-26-003952.txt

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