---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-104725"
form_type: "8-K"
ticker: "BSAA"
cik: "0002051587"
company_name: "BEST SPAC I Acquisition Corp."
filed_at: "2026-09-29T20:45:13+00:00"
generated_at: "2026-10-12T13:51:34.887400+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# BEST SPAC I sponsor ownership transferred to A SPAC (Holdings) Group; new holder controls ~80% of shares

## Summary
- Naoda Investments Limited transferred all ordinary shares of sponsor BEST SPAC I (Holdings) Corp. to A SPAC (Holdings) Group Corp. on September 29, 2026.
- Buyer now holds 100% of the Sponsor, which directly holds 1,375,000 Class B ordinary shares and 277,000 Class A ordinary shares underlying private placement units.
- Those holdings equal approximately 80.0% of the Company's issued and outstanding ordinary shares.
- Yun Chen resigned as sole director of the Sponsor; Claudius Tsang, a director of the Buyer, replaced him and shares voting and investment discretion with Kam Chi Kin.
- No changes were made to the directors or officers of BEST SPAC I Acquisition Corp. itself.

## SEC filing metadata
- accession: 0001213900-26-104725
- form_type: 8-K
- ticker: BSAA
- cik: 0002051587
- company_name: BEST SPAC I Acquisition Corp.
- filed_at: 2026-09-29T20:45:13+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2051587/000121390026104725/0001213900-26-104725-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2051587/000121390026104725/ea0306891-8k_bestspac1.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-104725
- JSON: https://secwatch.observer/filing/0001213900-26-104725.json
- Plain text: https://secwatch.observer/filing/0001213900-26-104725.txt

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