---
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"
generated_at: "2026-06-12T04:08:27.441735+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Tengjun Biotechnology CEO/CFO/Director Xianchang Ma dies August 3, 2023

## Summary
- 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.

## SEC filing metadata
- accession: 0001213900-23-064063
- form_type: 8-K
- cik: 0001499785
- company_name: Tengjun Biotechnology Corp.
- filed_at: 2023-08-07T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 5.02
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-23-064063
- JSON: https://secwatch.observer/filing/0001213900-23-064063.json
- Plain text: https://secwatch.observer/filing/0001213900-23-064063.txt

## Key facts
- Executive change
  Xianchang Ma departed as Chief Executive Officer at Tengjun Biotechnology Corp..
  - Action: passed away
  - Role: Chief Executive Officer
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/0001213900-23-064063-index.htm
- Executive change
  Xianchang Ma departed as Chief Financial Officer at Tengjun Biotechnology Corp..
  - Action: passed away
  - Role: Chief Financial Officer
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/0001213900-23-064063-index.htm
- Executive change
  Xianchang Ma departed as Director at Tengjun Biotechnology Corp..
  - Action: passed away
  - Role: Director
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/1499785/000121390023064063/0001213900-23-064063-index.htm

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