{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-26-008397","form_type":"8-K","ticker":"PLMK","cik":"0002030482","company_name":"Plum Acquisition Corp, IV","filed_at":"2026-01-28T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.043372+00:00","generated_at":"2026-05-16T07:08:54.227619+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"medium","headline":"Plum IV and American Critical Resources announce LOI for business combination","bullets":["Non-binding LOI for SPAC merger with ACR, subsidiary of Controlled Thermal Resources.","ACR's Hell's Kitchen project in CA targets 50 MW geothermal power and ~100,000 tpa lithium.","Presentation cites 12 years development, $285M invested, Stage 1 shovel-ready.","No definitive agreement; completion subject to due diligence, board/regulatory approvals.","ACR integrates geothermal power with direct lithium extraction for critical minerals."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-26-008397","json":"https://secwatch.observer/filing/0001213900-26-008397.json","markdown":"https://secwatch.observer/filing/0001213900-26-008397.md","text":"https://secwatch.observer/filing/0001213900-26-008397.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2030482/000121390026008397/0001213900-26-008397-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2030482/000121390026008397/ea0274337-8k425_plum4.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T07:08:54.227619+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}