---
schema_version: "secwatch.filing_event.v1"
accession: "0001929980-24-000467"
form_type: "8-K"
ticker: "HSPOF"
cik: "0001946021"
company_name: "Horizon Space Acquisition I Corp."
filed_at: "2024-10-11T23:59:59+00:00"
generated_at: "2026-05-30T15:44:53.425798+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Horizon Space Acquisition I issues $400K promissory note to sponsor for working capital

## Summary
- Issued $400,000 unsecured promissory note to sponsor Horizon Space Acquisition I Sponsor Corp.
- Note bears no interest, payable upon business combination or expiry of the SPAC's term.
- Proceeds used for general working capital purposes until initial business combination.
- Sponsor may convert outstanding principal into private units at $10 per unit upon closing of a business combination.
- Repayment limited to amounts outside the trust account if no business combination occurs.

## SEC filing metadata
- accession: 0001929980-24-000467
- form_type: 8-K
- ticker: HSPOF
- cik: 0001946021
- company_name: Horizon Space Acquisition I Corp.
- filed_at: 2024-10-11T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1946021/000192998024000467/0001929980-24-000467-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1946021/000192998024000467/hspo_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001929980-24-000467
- JSON: https://secwatch.observer/filing/0001929980-24-000467.json
- Plain text: https://secwatch.observer/filing/0001929980-24-000467.txt

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