{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-21-046908","form_type":"8-K","ticker":"GDC","cik":"0001641398","company_name":"GD Culture Group Ltd","filed_at":"2021-09-07T23:59:59+00:00","discovered_at":"2026-05-14T18:04:18.975791+00:00","generated_at":"2026-06-29T05:32:21.595342+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Code Chain appoints Tingjun Yang as Co-CEO, replacing Yimin Jin","bullets":["Yimin Jin resigned as Co-CEO effective Sept 7, 2021; no disagreement cited.","Tingjun Yang appointed Co-CEO same day; formerly CTO of Phantec BigData Technology.","Yang's annual base salary is $50,000; eligible for bonuses and equity incentives.","Employment agreement has 3-year initial term, auto-renews annually unless notice given.","Yang holds a doctorate and bachelor's in Computer Science from Zhejiang University."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-21-046908","json":"https://secwatch.observer/filing/0001213900-21-046908.json","markdown":"https://secwatch.observer/filing/0001213900-21-046908.md","text":"https://secwatch.observer/filing/0001213900-21-046908.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1641398/000121390021046908/0001213900-21-046908-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1641398/000121390021046908/ea147022-8k_codechain.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T05:32:21.595342+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":"a477a1b7f4","claim":"Yimin Jin resigned as Co-Chief Executive Officer at GD Culture Group Ltd.","evidence_excerpt":"Yimin Jin tendered his resignation as Co-Chief Executive Officer of Code Chain New Continent Limited (the “Company”), effective September 7, 2021.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1641398/000121390021046908/0001213900-21-046908-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Co-Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"d0ea42a231","claim":"Tingjun Yang was appointed as Co-Chief Executive Officer at GD Culture Group Ltd.","evidence_excerpt":"Tingjun Yang was appointed as the Co-Chief Executive Officer of the Company, effective September 7, 2021.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1641398/000121390021046908/0001213900-21-046908-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Co-Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}