---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-097077"
form_type: "8-K"
ticker: "GDST"
cik: "0001858007"
company_name: "Goldenstone Acquisition Ltd."
filed_at: "2025-10-07T23:59:59+00:00"
generated_at: "2026-05-17T04:29:14.986052+00:00"
event_type: "m_and_a"
sentiment: "negative"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Infintium terminates business combination deal with SPAC Goldenstone as deadline missed

## Summary
- Infintium terminated the Business Combination Agreement effective Oct 1, 2025 because the transaction was not completed by the Sept 30, 2025 outside date.
- The agreement was originally signed June 26, 2024 and amended Jan 28, 2025.
- Goldenstone, a SPAC, had agreed to merge with Infintium Fuel Cell Systems; no alternative deal is disclosed.

## SEC filing metadata
- accession: 0001213900-25-097077
- form_type: 8-K
- ticker: GDST
- cik: 0001858007
- company_name: Goldenstone Acquisition Ltd.
- filed_at: 2025-10-07T23:59:59+00:00
- event_type: m_and_a
- sentiment: negative
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1858007/000121390025097077/0001213900-25-097077-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1858007/000121390025097077/ea0260625-8k_golden.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-097077
- JSON: https://secwatch.observer/filing/0001213900-25-097077.json
- Plain text: https://secwatch.observer/filing/0001213900-25-097077.txt

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