{"filing":{"accession_number":"0001292814-26-004627","cik":"0001848309","ticker":"SGML","company_name":"Sigma Lithium Corp","form":"6-K","filing_date":"2026-09-21","report_date":"2026-09-21","primary_document":"sgml20260921_6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1848309/000129281426004627/sgml20260921_6k.htm"},"events":[{"id":34113,"run_id":31381,"accession_number":"0001292814-26-004627","anchor_item_number":"EX-99.1","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"summary":"This announcement discloses J.P. Morgan's initiation of equity research coverage with an \"Overweight\" rating on Sigma Lithium. While analyst coverage initiation is a market event that could influence investor perception and stock valuation, it does not fit neatly into the standard 8-K/6-K event taxonomy. The disclosure is material to investors as it represents third-party validation of the company's operational de-risking and growth strategy, but it is neither a discrete corporate action (M\u0026A, executive change, debt issuance) nor a financial result. The domain is clearly investor-relations/capital-markets oriented, but no specific category captures analyst coverage initiation.","company_name":"Sigma Lithium Corp","ticker":"SGML","filing_date":"2026-09-21","form":"6-K","submitted_at":null,"items":[{"id":37766,"accession_number":"0001292814-26-004627","item_number":"EX-99.1","item_title":"ex99-1.htm","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"reasoning":"This announcement discloses J.P. Morgan's initiation of equity research coverage with an \"Overweight\" rating on Sigma Lithium. While analyst coverage initiation is a market event that could influence investor perception and stock valuation, it does not fit neatly into the standard 8-K/6-K event taxonomy. The disclosure is material to investors as it represents third-party validation of the company's operational de-risking and growth strategy, but it is neither a discrete corporate action (M\u0026A, executive change, debt issuance) nor a financial result. The domain is clearly investor-relations/capital-markets oriented, but no specific category captures analyst coverage initiation.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-22T10:01:47.505325+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":37766,"accession_number":"0001292814-26-004627","item_number":"EX-99.1","item_title":"ex99-1.htm","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"reasoning":"This announcement discloses J.P. Morgan's initiation of equity research coverage with an \"Overweight\" rating on Sigma Lithium. While analyst coverage initiation is a market event that could influence investor perception and stock valuation, it does not fit neatly into the standard 8-K/6-K event taxonomy. The disclosure is material to investors as it represents third-party validation of the company's operational de-risking and growth strategy, but it is neither a discrete corporate action (M\u0026A, executive change, debt issuance) nor a financial result. The domain is clearly investor-relations/capital-markets oriented, but no specific category captures analyst coverage initiation.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-22T10:01:47.505325+00:00","company_name":"Sigma Lithium Corp","ticker":"SGML","filing_date":"2026-09-21"}]}