{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-23-037344","form_type":"8-K","ticker":"GWH","cik":"0001819438","company_name":"ESS Tech, Inc.","filed_at":"2023-11-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:30.661597+00:00","generated_at":"2026-06-08T16:59:38.885997+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"ESS Tech reports YTD revenue of $4.7M (+700% YoY), guides FY23 revenue to $9M, announces strategic Honeywell partnership","bullets":["YTD revenue $4.7M, up ~700% YoY; expects Q4 revenue material increase leading to ~$9M full year.","Honeywell invests $42.5M and targets $300M product purchases over coming years; ESS will integrate Honeywell's flow-battery IP.","Completed commissioning of six Energy Warehouse systems for SMUD; multi-year agreement for up to 2 GWh of storage.","Finalizing agreement with LEAG for 500 MWh iron flow battery system in Germany, with potential for up to 20 GWh green-energy hub.","Appointed Jeff Loebbaka as CCO and Harry Quarls as Chairman of the Board."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-23-037344","json":"https://secwatch.observer/filing/0001628280-23-037344.json","markdown":"https://secwatch.observer/filing/0001628280-23-037344.md","text":"https://secwatch.observer/filing/0001628280-23-037344.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1819438/000162828023037344/0001628280-23-037344-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1819438/000162828023037344/wk-20231107.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-08T16:59:38.885997+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":"2e2c697923a9e5c8cbd1b7b9545cf0bc7c8d6911","claim":"ESS Tech, Inc. reported financial results for third quarter ended September 30, 2023.","evidence_excerpt":"On November 7, 2023 , ESS Tech, Inc. (the “Company”) issued a press release announcing financial results for the quarter ended September 30, 2023.","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1819438/000162828023037344/0001628280-23-037344-index.htm","confidence":0.9,"family_label":"Earnings Releases","details":[{"label":"Period","value":"third quarter ended September 30, 2023"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}