{"filing": {"accession": "0001193125-26-294465", "cik": "0000074303", "ticker": "OLN", "company_name": "OLIN Corp", "form_type": "S-4", "filing_type": "S-4", "filing_date": "2026-07-02", "accepted_datetime": null, "acceptance_datetime": null, "accepted_at": null, "primary_doc_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/0001193125-26-294465-index.htm", "filing_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/0001193125-26-294465-index.htm", "period_of_report": null}, "html_url": "/api/filings/000119312526294465/stream", "exhibits": [{"exhibit_number": "5.1", "exhibit_type": "5", "description": "Opinion of McGuireWoods LLP regarding the validity of the Olin Corporation common stock being issued", "filename": "d127943dex51.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex51.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "23.1", "exhibit_type": "23", "description": "Consent of McGuireWoods LLP (included in Exhibit 5.1)", "filename": "d127943dex51.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex51.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "23.4", "exhibit_type": "23", "description": "Consent of KPMG LLP, independent registered public accounting firm to Olin Corporation", "filename": "d127943dex234.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex234.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "23.5", "exhibit_type": "23", "description": "Consent of Deloitte & Touche LLP, independent registered public accounting firm to Huntsman Corporation", "filename": "d127943dex235.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex235.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "99.1", "exhibit_type": "99", "description": "Form of Olin Corporation Proxy Card", "filename": "d127943dex991.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex991.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "99.2", "exhibit_type": "99", "description": "Form of Huntsman Corporation Proxy Card", "filename": "d127943dex992.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex992.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "99.3", "exhibit_type": "99", "description": "Consent of Lazard Fr\u00e8res & Co. LLC", "filename": "d127943dex993.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex993.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "99.4", "exhibit_type": "99", "description": "Consent of Citigroup Global Markets Inc.", "filename": "d127943dex994.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex994.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "99.5", "exhibit_type": "99", "description": "Consent of Morgan Stanley & Co. LLC", "filename": "d127943dex995.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000119312526294465/d127943dex995.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "3.1", "exhibit_type": "3", "description": "Amended and Restated Articles of Incorporation of Olin Corporation as amended effective April 24, 2020-Exhibit 3.1 to Olin\u2019s Form 8-K filed April 28, 2020", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000007430320000137/exhibit31aandrartofincorp.htm", "category": "incorporation", "incorporated_by_reference": true}, {"exhibit_number": "3.2", "exhibit_type": "3", "description": "Bylaws of Olin Corporation as amended effective April 30, 2026-Exhibit 3.1 to Olin\u2019s Form 8-K filed April 30, 2026", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000007430326000051/exhibit31-bylawseffective4.htm", "category": "incorporation", "incorporated_by_reference": true}, {"exhibit_number": "21.1", "exhibit_type": "21", "description": "Subsidiaries of Olin Corporation (incorporated herein by reference to Exhibit 21 to Olin Corporation\u2019s Annual Report on Form 10-K for the year ended December 31, 2025)", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/74303/000007430326000027/exhibit21-subsidiariesofol.htm", "category": "other", "incorporated_by_reference": true}], "sections": [{"section_name": "part_2", "section_title": "Part II", "start_position": 46154, "end_position": 929653}, {"section_name": "part_3", "section_title": "Part III", "start_position": 929653, "end_position": 1570995}], "tables": [{"table_index": 0, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 1, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 2, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 3, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 4, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 14, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 15, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 16, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 17, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 204, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 333, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 405, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 419, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 420, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 447, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 449, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 451, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 452, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 453, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 454, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 455, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 456, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 457, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 458, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 466, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 471, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 475, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 490, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 493, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 495, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 498, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 514, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 517, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 522, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 525, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 707, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 708, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 709, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 713, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 723, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 728, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 735, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 736, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 737, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 742, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 744, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 746, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 751, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 757, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 759, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 768, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 769, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 770, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 771, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 772, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 773, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 774, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 775, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 776, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 777, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 778, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 779, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 780, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 781, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 785, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 792, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 825, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 826, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 827, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 828, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 829, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 830, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 831, "table_type": "financial", "caption": null, "header_text": ""}, {"table_index": 832, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 841, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 852, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 853, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 855, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 867, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 886, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 895, "table_type": "exhibit_index", "caption": null, "header_text": ""}, {"table_index": 896, "table_type": "exhibit_index", "caption": null, "header_text": ""}, {"table_index": 920, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 921, "table_type": "text", "caption": null, "header_text": ""}, {"table_index": 922, "table_type": "text", "caption": null, "header_text": ""}], "exhibits_pending": false, "cdn_html": true, "response_time_ms": 36}