{"filing":{"accession_number":"0001171843-26-006036","cik":"0001370416","ticker":"WPRT","company_name":"WESTPORT FUEL SYSTEMS INC.","form":"6-K","filing_date":"2026-09-14","report_date":"2026-09-14","primary_document":"f6k_091426.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1370416/000117184326006036/f6k_091426.htm"},"events":[{"id":33395,"run_id":30704,"accession_number":"0001171843-26-006036","anchor_item_number":"EX-99.1","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"summary":"This press release announces the technical details and advancement of HPDI 3.0, the next-generation fuel system from Cespira (Westport's joint venture with Volvo Group). The disclosure highlights product enhancements, performance improvements, and production timeline (Q4 2026 start, early 2027 deployment). While this is a material product announcement affecting Westport's competitive positioning and market prospects, it does not fit the discrete event categories (no M\u0026A, no earnings results, no executive changes, no impairment). The mention of Cespira's 125% revenue growth year-over-year is contextual but not the primary disclosure. This is best classified as an operational/strategic business milestone—a material product advancement and market development announcement.","company_name":"WESTPORT FUEL SYSTEMS INC.","ticker":"WPRT","filing_date":"2026-09-14","form":"6-K","submitted_at":null,"items":[{"id":36841,"accession_number":"0001171843-26-006036","item_number":"EX-99.1","item_title":"exh_991.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"This press release announces the technical details and advancement of HPDI 3.0, the next-generation fuel system from Cespira (Westport's joint venture with Volvo Group). The disclosure highlights product enhancements, performance improvements, and production timeline (Q4 2026 start, early 2027 deployment). While this is a material product announcement affecting Westport's competitive positioning and market prospects, it does not fit the discrete event categories (no M\u0026A, no earnings results, no executive changes, no impairment). The mention of Cespira's 125% revenue growth year-over-year is contextual but not the primary disclosure. This is best classified as an operational/strategic business milestone—a material product advancement and market development announcement.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-15T10:03:38.057666+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":36841,"accession_number":"0001171843-26-006036","item_number":"EX-99.1","item_title":"exh_991.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"This press release announces the technical details and advancement of HPDI 3.0, the next-generation fuel system from Cespira (Westport's joint venture with Volvo Group). The disclosure highlights product enhancements, performance improvements, and production timeline (Q4 2026 start, early 2027 deployment). While this is a material product announcement affecting Westport's competitive positioning and market prospects, it does not fit the discrete event categories (no M\u0026A, no earnings results, no executive changes, no impairment). The mention of Cespira's 125% revenue growth year-over-year is contextual but not the primary disclosure. This is best classified as an operational/strategic business milestone—a material product advancement and market development announcement.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-15T10:03:38.057666+00:00","company_name":"WESTPORT FUEL SYSTEMS INC.","ticker":"WPRT","filing_date":"2026-09-14"}]}