{"filing":{"accession_number":"0001292814-26-004316","cik":"0001848309","ticker":"SGML","company_name":"Sigma Lithium Corp","form":"6-K","filing_date":"2026-08-21","report_date":"2026-08-21","primary_document":"sgml20260821_6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1848309/000129281426004316/sgml20260821_6k.htm"},"events":[{"id":29010,"run_id":26542,"accession_number":"0001292814-26-004316","anchor_item_number":"EX-99.1","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"summary":"Sigma Lithium announces full resumption of mining-industrial operations following signature of a TAC Agreement (Terms for Adjustment of Procedures) with the State of Minas Gerais. This is a material operational milestone: the company had experienced a partial suspension of operations, and the TAC Agreement's execution enables return to full production with stated targets of 240,000t within 12 months and 330,000t in FY 27. While the agreement involves environmental compliance and fines (~US$1.54M total), the core disclosure is operational resumption and production ramp-up, not a legal settlement or regulatory enforcement action per se.","company_name":"Sigma Lithium Corp","ticker":"SGML","filing_date":"2026-08-21","form":"6-K","submitted_at":null,"items":[{"id":31134,"accession_number":"0001292814-26-004316","item_number":"EX-99.1","item_title":"ex99-1.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"Sigma Lithium announces full resumption of mining-industrial operations following signature of a TAC Agreement (Terms for Adjustment of Procedures) with the State of Minas Gerais. This is a material operational milestone: the company had experienced a partial suspension of operations, and the TAC Agreement's execution enables return to full production with stated targets of 240,000t within 12 months and 330,000t in FY 27. While the agreement involves environmental compliance and fines (~US$1.54M total), the core disclosure is operational resumption and production ramp-up, not a legal settlement or regulatory enforcement action per se.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-24T10:02:38.223142+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":31134,"accession_number":"0001292814-26-004316","item_number":"EX-99.1","item_title":"ex99-1.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"Sigma Lithium announces full resumption of mining-industrial operations following signature of a TAC Agreement (Terms for Adjustment of Procedures) with the State of Minas Gerais. This is a material operational milestone: the company had experienced a partial suspension of operations, and the TAC Agreement's execution enables return to full production with stated targets of 240,000t within 12 months and 330,000t in FY 27. While the agreement involves environmental compliance and fines (~US$1.54M total), the core disclosure is operational resumption and production ramp-up, not a legal settlement or regulatory enforcement action per se.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-24T10:02:38.223142+00:00","company_name":"Sigma Lithium Corp","ticker":"SGML","filing_date":"2026-08-21"}]}