{"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","discovered_at":"2026-09-29T20:46:00.244619+00:00","generated_at":"2026-10-12T13:51:34.887400+00:00","sec_items":["5.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"BEST SPAC I sponsor ownership transferred to A SPAC (Holdings) Group; new holder controls ~80% of shares","bullets":["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."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-26-104725","json":"https://secwatch.observer/filing/0001213900-26-104725.json","markdown":"https://secwatch.observer/filing/0001213900-26-104725.md","text":"https://secwatch.observer/filing/0001213900-26-104725.txt","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"},"model":{"generated_by":"deepseek-v4.1-flash:cloud@v2","generated_at":"2026-10-12T13:51:34.887400+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}