{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-23-064063","form_type":"8-K","ticker":null,"cik":"0001499785","company_name":"Tengjun Biotechnology Corp.","filed_at":"2023-08-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:34.109049+00:00","generated_at":"2026-06-12T04:08:27.441735+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Tengjun Biotechnology CEO/CFO/Director Xianchang Ma dies August 3, 2023","bullets":["Mr. Ma served as CEO, CFO, and Director since December 2019; no replacement announced.","Company states it will update stockholders on further developments.","The filing does not name an interim successor or provide transition plan."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-23-064063","json":"https://secwatch.observer/filing/0001213900-23-064063.json","markdown":"https://secwatch.observer/filing/0001213900-23-064063.md","text":"https://secwatch.observer/filing/0001213900-23-064063.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/0001213900-23-064063-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/ea182930-8k_tengjunbio.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-12T04:08:27.441735+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":[{"claim_id":"15b391586e","claim":"Xianchang Ma departed as Chief Executive Officer at Tengjun Biotechnology Corp..","evidence_excerpt":"Tengjun Biotechnology Corp. wishes to announce that Mr. Xianchang Ma, the Chief Executive Officer, Chief Financial Officer and Director of the Company, passed away on August 3, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/0001213900-23-064063-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"passed away"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"1614fd3c49","claim":"Xianchang Ma departed as Chief Financial Officer at Tengjun Biotechnology Corp..","evidence_excerpt":"Tengjun Biotechnology Corp. wishes to announce that Mr. Xianchang Ma, the Chief Executive Officer, Chief Financial Officer and Director of the Company, passed away on August 3, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/0001213900-23-064063-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"passed away"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"8001edecca","claim":"Xianchang Ma departed as Director at Tengjun Biotechnology Corp..","evidence_excerpt":"Tengjun Biotechnology Corp. wishes to announce that Mr. Xianchang Ma, the Chief Executive Officer, Chief Financial Officer and Director of the Company, passed away on August 3, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/0001213900-23-064063-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"passed away"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}