{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-080430","form_type":"8-K","ticker":"PSIX","cik":"0001137091","company_name":"POWER SOLUTIONS INTERNATIONAL, INC.","filed_at":"2023-03-27T23:59:59+00:00","discovered_at":"2026-05-14T18:03:43.958456+00:00","generated_at":"2026-06-17T14:24:40.954360+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"PSI extends strategic collaboration with Weichai Power to March 2026","bullets":["Second Amendment to Strategic Collaboration Agreement dated March 22, 2023, with Weichai Power.","Term extended three years from March 20, 2023 to March 20, 2026, with mutual extension option.","Weichai remains PSI's largest stockholder, holding 51.2% of outstanding common stock.","All other terms of the original Collaboration Agreement remain unchanged."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-080430","json":"https://secwatch.observer/filing/0001193125-23-080430.json","markdown":"https://secwatch.observer/filing/0001193125-23-080430.md","text":"https://secwatch.observer/filing/0001193125-23-080430.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1137091/000119312523080430/0001193125-23-080430-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1137091/000119312523080430/d307726d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T14:24:40.954360+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":"6429e0542ba8dabe90057a9e91135c905ff5a078","claim":"POWER SOLUTIONS INTERNATIONAL, INC. amended Second Amendment to Strategic Collaboration Agreement with Weichai Power Co., Ltd. (effective 2023-03-22).","evidence_excerpt":"On March 22, 2023, Power Solutions International, Inc. (the “Company”) entered into the Second Amendment to Strategic Collaboration Agreement (the “Amendment”), which amends the Strategic Collaboration Agreement, dated March 20, 2017 and the subsequent First Amendment to Strategic Collaboration Agreement dated March 26, 2020 (collectively, the “Collaboration Agreement”) with Weichai Power Co., Ltd. (“Weichai Power”), an affiliate of Weichai America Corp. (together, “Weichai”).","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1137091/000119312523080430/0001193125-23-080430-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"collaboration"},{"label":"Counterparty","value":"Weichai Power Co., Ltd."},{"label":"Effective","value":"2023-03-22"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}