---
schema_version: "secwatch.filing_event.v1"
accession: "0001929980-26-000053"
form_type: "8-K"
ticker: "HSPT"
cik: "0002032950"
company_name: "Horizon Space Acquisition II Corp."
filed_at: "2026-02-24T23:59:59+00:00"
generated_at: "2026-05-16T00:55:53.765998+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Horizon Space II extends deadline to March 18, 2026 with $50K deposit; over 6.7M shares redeemed

## Summary
- William Wang deposited $50,000 extension fee into trust for one-month extension to March 18, 2026; up to 12 monthly extensions available.
- Company issued $50,000 promissory note to William Wang, convertible into units at $10 per unit upon business combination.
- 2,012,378 public shares redeemed in connection with business combination proposals; 4,709,337 shares redeemed for extension proposals.
- Extension allows SPAC to continue pursuing its previously announced business combination with SL Bio Ltd.
- Shareholders approved charter amendment to permit extensions and trust amendments at February 13, 2026 meeting.

## SEC filing metadata
- accession: 0001929980-26-000053
- form_type: 8-K
- ticker: HSPT
- cik: 0002032950
- company_name: Horizon Space Acquisition II Corp.
- filed_at: 2026-02-24T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2032950/000192998026000053/0001929980-26-000053-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2032950/000192998026000053/hspt_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001929980-26-000053
- JSON: https://secwatch.observer/filing/0001929980-26-000053.json
- Plain text: https://secwatch.observer/filing/0001929980-26-000053.txt

## Source-grounded claims
- claim_id: 91e1f737a29613bf796747ce64b9ebd4d0ff787f
  claim: Horizon Space Acquisition II Corp. incurred debt of $50,000 with William Wang at no interest maturing earlier of business combination or expiry of Company term (Maturity Date).
  evidence_excerpt: On or about February 18, 2026, an aggregate of $50,000 of the Extension Fee was deposited into the Trust Account for the Company’s public shareholders (the “ Extension Payment ”) by Mr. William Wang (the “ Payee” ), which enables the Company to extend the period of time it has to consummate its initial business combination by one month from February 18, 2026 to March18, 2026 (the “ Extension ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2032950/000192998026000053/0001929980-26-000053-index.htm

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