{"filing":{"accession_number":"0001493152-26-044808","cik":"0001875016","ticker":"YMAT","company_name":"J-Star Holding Co., Ltd.","form":"6-K","filing_date":"2026-09-29","report_date":"2026-09-29","primary_document":"form6-k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1875016/000149315226044808/form6-k.htm"},"events":[{"id":35643,"run_id":32840,"accession_number":"0001493152-26-044808","anchor_item_number":"EX-99.1","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.72,"summary":"The exhibit announces that Chairman and CEO Jonathan Chiang will relocate full-time to the United States to lead growth initiatives and U.S. operations. While this involves a senior executive's relocation and operational focus shift, it does not constitute a departure (he remains in role), appointment (no new person is taking a position), or compensation change. The disclosure is material because it signals a strategic pivot in leadership presence and operational focus toward U.S. expansion in aerospace, defense, and higher-value composite markets, which would affect investor assessment of the company's growth trajectory and capital allocation strategy.","company_name":"J-Star Holding Co., Ltd.","ticker":"YMAT","filing_date":"2026-09-29","form":"6-K","submitted_at":null,"items":[{"id":39778,"accession_number":"0001493152-26-044808","item_number":"EX-99.1","item_title":"ex99-1.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.72,"reasoning":"The exhibit announces that Chairman and CEO Jonathan Chiang will relocate full-time to the United States to lead growth initiatives and U.S. operations. While this involves a senior executive's relocation and operational focus shift, it does not constitute a departure (he remains in role), appointment (no new person is taking a position), or compensation change. The disclosure is material because it signals a strategic pivot in leadership presence and operational focus toward U.S. expansion in aerospace, defense, and higher-value composite markets, which would affect investor assessment of the company's growth trajectory and capital allocation strategy.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-29T13:01:38.078404+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":39778,"accession_number":"0001493152-26-044808","item_number":"EX-99.1","item_title":"ex99-1.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.72,"reasoning":"The exhibit announces that Chairman and CEO Jonathan Chiang will relocate full-time to the United States to lead growth initiatives and U.S. operations. While this involves a senior executive's relocation and operational focus shift, it does not constitute a departure (he remains in role), appointment (no new person is taking a position), or compensation change. The disclosure is material because it signals a strategic pivot in leadership presence and operational focus toward U.S. expansion in aerospace, defense, and higher-value composite markets, which would affect investor assessment of the company's growth trajectory and capital allocation strategy.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-29T13:01:38.078404+00:00","company_name":"J-Star Holding Co., Ltd.","ticker":"YMAT","filing_date":"2026-09-29"}]}