{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-23-022086","form_type":"8-K","ticker":null,"cik":"0001826669","company_name":"ELK CREEK RESOURCES CORP.","filed_at":"2023-03-22T23:59:59+00:00","discovered_at":"2026-05-14T18:03:46.852842+00:00","generated_at":"2026-06-17T21:36:13.310703+00:00","sec_items":["2.01","3.01","3.02","3.03","5.01","4.01","5.02","5.06","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"GX Acquisition Corp. II completes business combination with NioCorp, changes name to Elk Creek Resources Corp.","bullets":["Each GX Class A share converted into 11.1829212 NioCorp shares (1.11829212 after 10-for-1 reverse split).","28.5M GX Class A shares redeemed; post-Transaction: 30.1M NioCorp common, 7.96M Class B, 15.7M warrants outstanding.","Change in control: SPAC now wholly owned subsidiary of NioCorp; former sponsor GX Sponsor II LLC no longer controls.","New board: Mark A. Smith, Scott Honan, Neal Shah appointed; Honan President, Shah Treasurer/Secretary.","Auditor changed from Marcum LLP to BDO USA LLP; Marcum's prior report included going-concern explanatory paragraph."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-23-022086","json":"https://secwatch.observer/filing/0001213900-23-022086.json","markdown":"https://secwatch.observer/filing/0001213900-23-022086.md","text":"https://secwatch.observer/filing/0001213900-23-022086.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1826669/000121390023022086/0001213900-23-022086-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1826669/000121390023022086/ea175424-8k_elkcreek.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T21:36:13.310703+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":"d1732b6cec2c21a2fe605e8e47958d4e26cd14cb","claim":"ELK CREEK RESOURCES CORP. engaged BDO USA, LLP as its auditor.","evidence_excerpt":"ratified, reaffirmed and confirmed the engagement of BDO USA, LLP (“BDO”), effective immediately, as NioCorp’s independent registered public accounting firm to audit NioCorp and its subsidiaries","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1826669/000121390023022086/0001213900-23-022086-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"engagement"},{"label":"Auditor","value":"BDO USA, LLP"}],"fact_type":"auditor_change"},{"claim_id":"ea292cee0b915e7f18cb0a7ba178c2e805920124","claim":"ELK CREEK RESOURCES CORP. dismissed Marcum, LLP as its auditor.","evidence_excerpt":"Marcum, LLP (“Marcum”), the Company’s independent registered public accounting firm prior to the Transactions, was informed that it would be replaced by BDO as the Company’s independent registered public accounting firm, effective immediately.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1826669/000121390023022086/0001213900-23-022086-index.htm","confidence":0.9,"family_label":"Auditor Changes","details":[{"label":"Action","value":"dismissal"},{"label":"Auditor","value":"Marcum, LLP"},{"label":"Successor","value":"BDO USA, LLP"}],"fact_type":"auditor_change"},{"claim_id":"00a207148f","claim":"Hillel Weinberger departed as member of the board of directors at ELK CREEK RESOURCES CORP..","evidence_excerpt":"each of Jay R. 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