{"schema_version":"secwatch.filing_event.v1","accession":"0001575705-22-000637","form_type":"8-K","ticker":"GSTX","cik":"0001497649","company_name":"Graphene & Solar Technologies Ltd","filed_at":"2022-08-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:55.932839+00:00","generated_at":"2026-06-23T19:23:06.323019+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"CEO Roger Thomas May dies; Andrew Liang appointed interim CEO","bullets":["CEO Roger Thomas May passed away on August 24, 2022.","Board appointed Dr. Andrew Liang as interim CEO on August 26, 2022.","Dr. Liang has served as board advisor since 2019 and Director of Operations since July 2020.","Company will commence search for a permanent CEO."],"urls":{"canonical":"https://secwatch.observer/filing/0001575705-22-000637","json":"https://secwatch.observer/filing/0001575705-22-000637.json","markdown":"https://secwatch.observer/filing/0001575705-22-000637.md","text":"https://secwatch.observer/filing/0001575705-22-000637.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1497649/000157570522000637/0001575705-22-000637-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1497649/000157570522000637/gstx_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-23T19:23:06.323019+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":"253c1e28ba","claim":"Roger Thomas May departed as CEO at Graphene & Solar Technologies Ltd.","evidence_excerpt":"the family of Roger Thomas May, CEO, advised board members of his sudden passing late in the evening of August 24, 2022.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1497649/000157570522000637/0001575705-22-000637-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"passed away"},{"label":"Role","value":"CEO"}],"fact_type":"executive_change"},{"claim_id":"946260dba2","claim":"Andrew Liang was appointed as interim CEO at Graphene & Solar Technologies Ltd.","evidence_excerpt":"the board of directors approved the appointment of Dr. Andrew Liang as interim CEO, while the company commences identifying a permanent replacement to this position.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1497649/000157570522000637/0001575705-22-000637-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"interim CEO"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}