OLN / Olin Corporation - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2025 OLIN CORPORATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numb

OLIN CORPORATION As Amended August 13, 2025

Exhibit 3.1 BYLAWS OF OLIN CORPORATION As Amended Effective August 13, 2025 1 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. Section 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the “Corporation”) shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of Di

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 Olin Corporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2025 OLIN CORPORATION (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

Olin Announces Second Quarter 2025 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Second Quarter 2025 Results Highlights •Second quarter 2025 net loss of ($1.3) million, or ($0.01) per diluted share •Quarterly adjusted EBITDA of $176.1 million •Second quarter 2025 operating cash flow of $212.3 million •Fu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 A. Full title of the plan and

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 190 Carondelet Plaza, Suite 1530 Clayton, MO (Address of principal executive offices)

OLIN CORPORATION Conflict Minerals Report For the reporting period from January 1, 2024 to December 31, 2024

Exhibit 1.01 OLIN CORPORATION Conflict Minerals Report For the reporting period from January 1, 2024 to December 31, 2024 This Specialized Disclosure Report (this “Report”) of Olin Corporation (“Olin” or “we”) has been prepared to comply with Rule 13p-1 (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the year ended December 31, 2024. The Rule requires us to disc

among Olin Corporation, Olin Winchester, LLC, the Lenders as named therein, and PNC Bank, National Association, as administrative agent for the Lenders

Exhibit 4.1 THIRD AMENDMENT TO FORWARD PURCHASE AGREEMENT (2017) by and among OLIN CORPORATION as Borrower and OLIN WINCHESTER, LLC and THE LENDERS PARTY HERETO and PNC BANK, NATIONAL ASSOCIATION as Administrative Agent and PNC CAPITAL MARKETS LLC as Lead Arranger and Sole Bookrunner Dated as of March 14, 2025 THIRD AMENDMENT TO FORWARD PURCHASE AGREEMENT (2017) THIS THIRD AMENDMENT TO FORWARD PUR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 Olin Corporat

Olin Announces First Quarter 2025 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces First Quarter 2025 Results Highlights •First quarter 2025 net income of $1.4 million, or $0.01 per diluted share •Quarterly adjusted EBITDA of $185.6 million Clayton, MO, May 1, 2025 – Olin Corporation (NYSE: OLN) announced

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Results of Operations and Financial Condition, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number)

Bylaws of Olin Corporation, as amended effective May 1, 2025

Exhibit 3.1 BYLAWS OF OLIN CORPORATION As Amended Effective May 1, 2025 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. SECTION 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the "Corporation") shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of Director

Olin – Winchester Completes Acquisition of Small Caliber Ammunition Manufacturing Assets

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin – Winchester Completes Acquisition of Small Caliber Ammunition Manufacturing Assets Clayton, MO, April 18, 2025 – Olin Corporation (NYSE: OLN) announced today that it has completed the previously announced acquisition of the small cal

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 14, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

Indenture, dated as of March 14, 2025, between Olin Corporation and U.S. Bank Trust Company, National Association, as trustee, governing the Senior Notes.

Exhibit 4.1 Execution Version OLIN CORPORATION, as Issuer AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee, 6.625% Senior Notes due 2033 INDENTURE Dated as of March 14, 2025 Table of Contents Page ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE SECTION 1.1. Definitions 1 SECTION 1.2. Other Definitions 6 SECTION 1.3. Concerning the TIA 7 SECTION 1.4. Rules of Construction 7 ARTICL

Thirteenth Amendment to Amended and Restated Credit and Funding Agreement, dated as of March 14, 2025, among Olin Corporation, the Lenders (as defined therein) and PNC Bank, National Association, as administrative agent.

Exhibit 4.3 THIRTEENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND FUNDING AGREEMENT by and among OLIN CORPORATION as Borrower and OLIN WINCHESTER, LLC and THE LENDERS PARTY HERETO and PNC BANK, NATIONAL ASSOCIATION as Administrative Agent and PNC CAPITAL MARKETS LLC as Lead Arranger and Sole Bookrunner Dated as of March 14, 2025 This THIRTEENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND FUNDIN

Credit Agreement, dated as of March 14, 2025, among Olin Corporation, the Lenders and Issuing Banks (as defined therein) and Bank of America, N.A., as administrative agent.

Exhibit 10.1 Execution Version Published CUSIP Number: 68066LBF7 Revolving Advance CUSIP Number: 68066LBG5 Initial Term Loan CUSIP Number: 68066LBH3 US$1,850,000,000 CREDIT AGREEMENT Dated as of March 14, 2025 among OLIN CORPORATION, as Borrower THE LENDERS NAMED HEREIN, as Lenders BANK OF AMERICA, N.A., as Administrative Agent BANK OF AMERICA, N.A., JPMORGAN CHASE BANK, N.A., PNC BANK, NATIONAL A

Bylaws of Olin Corporation, as amended effective March 5, 2025

Exhibit 3.1 BYLAWS OF OLIN CORPORATION As Amended Effective March 5, 2025 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. SECTION 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the "Corporation") shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of Direct

Retired U.S. Army General Edward M. Daly Appointed to Olin’s Board of Directors

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Retired U.S. Army General Edward M. Daly Appointed to Olin’s Board of Directors Clayton, MO, March 6, 2025 – Olin Corporation (NYSE: OLN) announced today that General (U.S. Army retired) Edward (Ed) Daly was appointed as a new director by

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 OLIN CORPORATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

COMPANY DESCRIPTION

Exhibit 99.1 Olin Announces Pricing of Private Offering of Senior Notes CLAYTON, Mo., Feb. 28, 2025 /PRNewswire/ — Olin Corporation (NYSE: OLN) announced today the pricing of its previously announced private offering (the “Offering”) of $600 million aggregate principal amount of 6.625% senior notes due 2033 (the “Senior Notes”). The initial offering price to investors will be 100.000% of the princ

Olin To Pursue Private Offering Of Senior Notes

EX-99.1 Exhibit 99.1 Olin To Pursue Private Offering Of Senior Notes CLAYTON, Mo., February 28, 2025 /PRNewswire/ — Olin Corporation (NYSE: OLN) announced today that it intends to offer (the “Offering”) $600 million aggregate principal amount of senior notes due 2033 (the “Senior Notes”), subject to market and other conditions. The Senior Notes will be Olin’s senior unsecured obligations and will

Description of Olin Corporation Securities registered under Section 12 of the Exchange Act

Exhibit 4.1 OLIN CORPORATION DESCRIPTION OF SECURITIES DESCRIPTION OF CAPITAL STOCK The following statements with respect to our capital stock are subject to the detailed provisions of our Amended and Restated Articles of Incorporation, as further amended or restated, which we refer to as the Articles of Incorporation, our Bylaws, as amended, which we refer to as the Bylaws, and the provisions of

Subsidiaries of Olin Corporation

Exhibit 21 SUBSIDIARIES OF OLIN CORPORATION1 (As of December 31, 2024) Company Jurisdiction Blue Cube Holding LLC DE Blue Cube Intermediate Holding 2 LLC DE Blue Cube International Holdings LLC DE Blue Cube IP LLC DE Blue Cube Operations LLC DE Blue Cube Spinco LLC DE Blue Water Alliance JV, LLC DE Henderson Groundwater LLC NV HPCM LLC DE Hunt Trading Co.

Performance Share Program

Exhibit 10.16 OLIN CORPORATION Effects of Certain Events on Outstanding Equity Awards December 5, 2024 Event Performance Shares Restricted Stock Units (RSUs) Options1 Termination of Employment For Cause (by Olin) Forfeiture of unvested shares; payment of vested but unpaid shares Forfeiture of unvested RSUs; payment of vested but unpaid RSUs Forfeiture of all unexercised options (vested and unveste

Olin Corporation Change in Control Severance Plan for Section 16(b) Officers effective

Exhibit 10.3 OLIN CORPORATION CHANGE IN CONTROL SEVERANCE PLAN FOR OFFICERS (as adopted effective April 24, 2024) ARTICLE I. PURPOSE AND TERM OF THE PLAN Section 1.01 Purpose of the Plan. The general purpose of the Plan is to provide severance benefits to Olin’s officers and who experience a Qualifying Termination upon or within two years of any Change in Control as described more fully herein. Se

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORATION (

Olin Performance Share Program

Exhibit 10.22 OLIN CORPORATION PERFORMANCE SHARE PROGRAM As Amended through February 21, 2024 1.Terms and Conditions The terms and conditions of the Performance Share Awards granted under this Program are contained in the Performance Share Award certificate evidencing such Award, this Program and the LTIP. 2.Definitions “Common Stock” means the common stock of Olin, par value $1.00 per share. “Fin

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Olin Corporation Severance Plan for Section 16(b) Officers effective

Exhibit 10.4 OLIN CORPORATION SEVERANCE PLAN FOR OFFICERS (as adopted effective April 24, 2024) ARTICLE I. PURPOSE, AND TERM OF THE PLAN Section 1.01 Purpose of the Plan. The general purpose of the Plan is to provide severance benefits to Olin’s officers and who experience a Qualifying Termination prior to any Change in Control as described more fully herein. Section 1.02 Term of the Plan. The Pla

Amended and Restated 1997 Stock Plan for Non-employee Directors codified to reflect amendments adopted through

Exhibit 10.5 OLIN CORPORATION AMENDED AND RESTATED 1997 STOCK PLAN FOR NON-EMPLOYEE DIRECTORS (Codified to reflect amendments adopted through December 5, 2024) 1.Purpose. The purpose of the Olin Corporation 1997 Stock Plan for Non- employee Directors (the “Plan”) is to promote the long-term growth and financial success of Olin Corporation by attracting and retaining non-employee directors of outst

nsider Trading Policy

Exhibit 19 Insider Trading Policy: 6.9 Contact: General Counsel or Designated Counsel Effective: January 1, 2025 Supersedes: May 1, 2022 Insider Trading Policy 6.9 Insider Trading Policy Objective This policy is designed to help employees understand the nature and scope of U.S. federal insider trading laws and the serious consequences of violating these laws. It also prohibits certain transactions

EX-99

EX-99 2 exhibit99.txt Exhibit 99 Pursuant to the instructions in Item 7 of Schedule 13G, the following table lists the identity and Item 3 classification, if applicable, of each relevant entity that beneficially owns shares of the security class being reported on this Schedule 13G. Entity ITEM 3 Classification FIAM LLC IA Fidelity Diversifying Solutions LLC IA Fidelity Management & Research Compan

Groundbreaking Ceremony for State-of-the-Art 6.8mm Ammunition Facility at the Lake City Army Ammunition Plant

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Groundbreaking Ceremony for State-of-the-Art 6.8mm Ammunition Facility at the Lake City Army Ammunition Plant Clayton, MO, February 5, 2025 – Olin Corporation (NYSE: OLN) announced that its Winchester division, in collaboration with the U.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Olin Announces Fourth Quarter 2024 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Fourth Quarter 2024 Results Highlights •Fourth quarter 2024 net income of $10.7 million, or $0.09 per diluted share •Quarterly adjusted EBITDA of $193.4 million Clayton, MO, January 30, 2025 – Olin Corporation (NYSE: OLN) an

Olin – Winchester to Acquire Ammunition Assets of AMMO, Inc.

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin – Winchester to Acquire Ammunition Assets of AMMO, Inc. •Leverages Winchester’s integration across commercial ammunition value chain •Enhances our ability to participate across high-margin specialty calibers •Drives value creation thr

, 2025, by and between Olin Corporation and Damian Gumpel.

EX-10.1 2 exhibit101separationagreem.htm EX-10.1 SEPARATION AGREEMENT Exhibit 10.1 190 Carondelet Plaza, Suite 1530 Clayton, MO 63105-3443 January 17, 2025 Damian Gumpel Re: Voluntary Separation Dear Damian, This letter is to confirm the mutual agreement between you and Olin Corporation (“Olin”) regarding your voluntary separation from employment with Olin effective February 22, 2025 (the “Separat

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 21, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 15, 2025 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 11, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Olin Hosts 2024 Investor Day and Announces Increase in Share Repurchase Authorization to $2.0 Billion

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Hosts 2024 Investor Day and Announces Increase in Share Repurchase Authorization to $2.0 Billion Clayton, MO, December 12, 2024 – Olin Corporation (NYSE: OLN) will host an Investor Day in New York City today, beginning at 9:00am (ET).

INVESTOR DAY D E C E M B E R 1 2 , 2 0 2 4 2 0 2 4 I N V E S T O R D A Y Welcome and Opening Remarks Steve Keenan Director, Investor Relations 2 2 0 2 4 I N V E S T O R D A Y Safety Moment – Location of Emergency Exit and Restrooms 3 EMERGENCY EXIT S

INVESTOR DAY D E C E M B E R 1 2 , 2 0 2 4 2 0 2 4 I N V E S T O R D A Y Welcome and Opening Remarks Steve Keenan Director, Investor Relations 2 2 0 2 4 I N V E S T O R D A Y Safety Moment – Location of Emergency Exit and Restrooms 3 EMERGENCY EXIT STAIRS RESTROOMS EMERGENCY EXIT STAIRS 2 0 2 4 I N V E S T O R D A Y Forward-looking Statements 4 This presentation includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Retention Agreement Side Letter, dated December 5, 2024

Exhibit 10.1 Olin 190 Carondelet Plaza, Suite 1530 Clayton, MO 63105-3443 December 5, 2024 Dear Dana, In light of your decision to retire by the end of 2025, following discussions with the Compensation Committee, the Committee has approved a revision to your original retention agreement to incentivize you to remain with the Company through 2025 to ensure a seamless transition to your successor. Th

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Receivables Purchase Agreement, dated as of November 20, 2024, among Olin Corporation, as servicer, Olin Finance Company, LLC, as seller, PNC Bank, National Association, as administrative agent, PNC Capital Markets LLC, as structuring agent, and the persons from time to time parties thereto as purchasers and group agents.

EXHIBIT 10.1 EXECUTION VERSION RECEIVABLES PURCHASE AGREEMENT Dated as of November 20, 2024 by and among OLIN FINANCE COMPANY, LLC, as Seller, THE PERSONS FROM TIME TO TIME PARTY HERETO, as Purchasers and as Group Agents, PNC BANK, NATIONAL ASSOCIATION, as Administrative Agent, OLIN CORPORATION, as initial Servicer, and PNC CAPITAL MARKETS LLC, as Structuring Agent TABLE OF CONTENTS Page ARTICLE I

OLN / Olin Corporation / HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 Olin Corp

Amended and Restated Retirement Savings Plan

Exhibit 10.1 OLIN CORPORATION RETIREMENT SAVINGS PLAN Amended and Restated as of January 1, 2024 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 ARTICLE II PARTICIPATION 10 2.1 On the Restatement Effective Date 10 2.2 After the Restatement Effective Date 10 ARTICLE III CONTRIBUTIONS 11 3.1 Tax Deferred Contributions 11 3.2 Limitations on Tax Deferred Contributions 13 3.3 Taxed Contributions 15 3.4

Olin Announces Third Quarter 2024 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Third Quarter 2024 Results Highlights •Third quarter 2024 net loss of ($24.9) million, or ($0.21) per diluted share •Quarterly adjusted EBITDA of $160.3 million Clayton, MO, October 24, 2024 – Olin Corporation (NYSE: OLN) an

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Olin Corporation Supplemental Retirement Savings Plan

Exhibit 10.1 Olin Corporation Supplemental Retirement Savings Plan As amended and restated effective January 1, 2024 Table of Contents Page ARTICLE I DEFINITIONS AND GENERAL PROVISIONS 1 1.1 Definitions 1 (a) “Account” 1 (b) “Beneficiary” 1 (c) “Board” 1 (d) “Change of Control” 1 (e) “Committee” 1 (f) “Company” 1 (g) “Compensation” 1 (h) “Disability” 1 (i) “Dividend Equivalents” 2 (j) “Eligible Em

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 30, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File N

IMPORTANT NOTICE OF BLACKOUT PERIOD CONCERNING LIMITATIONS ON TRADING IN OLIN CORPORATION EQUITY SECURITIES

Exhibit 99.1 IMPORTANT NOTICE OF BLACKOUT PERIOD CONCERNING LIMITATIONS ON TRADING IN OLIN CORPORATION EQUITY SECURITIES To: Directors and Executive Officers of Olin Corporation (“Olin”) From: Inchan Hwang, Vice President, Deputy General Counsel and Corporate Secretary Date: September 6, 2024 This notice is to inform you of significant restrictions on your ability to transact in Olin equity securi

Temporary Suspension of Trading Under Registrant's Employee Benefit Plans, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 6, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 28, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numb

Olin Corporation Lifts Systemwide Force Majeure for Chlor-Alkali Products

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Corporation Lifts Systemwide Force Majeure for Chlor-Alkali Products Clayton, MO, August 28, 2024 – Olin Corporation (NYSE: OLN), a leading global manufacturer of chemical products and ammunition, announced today that it has lifted it

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 Olin Corporati

Olin 190 Carondelet Plaza, Suite 1530 Clayton, MO 63105-3443

Exhibit 10.1 Olin 190 Carondelet Plaza, Suite 1530 Clayton, MO 63105-3443 May 13, 2024 Patrick Schumacher 3520 Southwestern Blvd Dallas, TX 75225 Re: Employment Separation by Mutual Consent Dear Patrick, This letter is to confirm the mutual agreement between you and Olin Corporation (“Olin”) regarding your separation from employment with Olin effective September 1, 2024 (“Separation Date”) and is

President Separation Agreement and General Release

Exhibit 10.2 Separation Agreement and General Release This Separation Agreement and General Release (“Agreement”) sets forth the understanding between Olin Corporation and its subsidiaries and affiliated companies (“Olin”) and you, Patrick Schumacher, regarding your separation from employment. 1.Employment Separation. Your last day of employment with Olin will be August 31, 2024 (the “Separation D

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 24, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

Olin Announces Second Quarter 2024 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Second Quarter 2024 Results Highlights •Second quarter 2024 net income of $74.2 million, or $0.62 per diluted share •Quarterly adjusted EBITDA of $278.1 million •Share repurchases of $106.0 million in second quarter 2024 Cla

Olin Corporation Provides Update on Hurricane Beryl

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Corporation Provides Update on Hurricane Beryl Clayton, MO, July 10, 2024 – Olin Corporation (NYSE: OLN) announced a temporary disruption of operations at its Freeport, Texas, facility as a result of Hurricane Beryl. Olin has declared

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 10, 2024 OLIN CORPORATION (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 10, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 1, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number)

Olin Among European Union Epoxy Resin Producers Lodging an Anti-Dumping Complaint Against Four Countries

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Among European Union Epoxy Resin Producers Lodging an Anti-Dumping Complaint Against Four Countries Clayton, MO, July 1, 2024 – Olin Corporation (NYSE: OLN), as a member of the Ad Hoc Coalition of Epoxy Resin Producers (Coalition), co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORA

Conflict Minerals Report of Olin Corporation as required by Item 1.01 of this Form SD

Exhibit 1.01 OLIN CORPORATION Conflict Minerals Report For the reporting period from January 1, 2023 to December 31, 2023 This Specialized Disclosure Report (this “Report”) of Olin Corporation (“Olin” or “we”) has been prepared to comply with Rule 13p-1 (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the year ended December 31, 2023. The Rule requires us to disc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 190 Carondelet Plaza, Suite 1530 Clayton, MO (Address of principal executive offices)

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 23, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number)

Olin Announces New President, Chlor Alkali Products & Vinyls

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces New President, Chlor Alkali Products & Vinyls Clayton, MO, May 23, 2024 – Olin Corporation (NYSE: OLN) announced today that Olin’s Board of Directors has appointed Deon Carter as Vice President & President, Chlor Alkali Prod

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number)

Olin Corporation Severance Plan for Officers effective April 24, 2024

Exhibit 10.2 OLIN CORPORATION SEVERANCE PLAN FOR OFFICERS (as adopted effective April 24, 2024) ARTICLE I. PURPOSE, AND TERM OF THE PLAN Section 1.01 Purpose of the Plan. The general purpose of the Plan is to provide severance benefits to Olin’s officers and who experience a Qualifying Termination prior to any Change in Control as described more fully herein. Section 1.02 Term of the Plan. The Pla

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 Olin Corporat

Olin Corporation Change in Control Severance Plan for

Exhibit 10.1 OLIN CORPORATION CHANGE IN CONTROL SEVERANCE PLAN FOR OFFICERS (as adopted effective April 24, 2024) ARTICLE I. PURPOSE AND TERM OF THE PLAN Section 1.01Purpose of the Plan. The general purpose of the Plan is to provide severance benefits to Olin’s officers and who experience a Qualifying Termination upon or within two years of any Change in Control as described more fully herein. Sec

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

Olin Announces First Quarter 2024 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces First Quarter 2024 Results Highlights •First quarter 2024 net income of $48.6 million, or $0.40 per diluted share •Quarterly adjusted EBITDA of $242.1 million •Share repurchases of $105.4 million in first quarter 2024 Clayto

Olin Among U.S. Epoxy Resin Producers Filing Trade Cases Against Five Countries

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Among U.S. Epoxy Resin Producers Filing Trade Cases Against Five Countries CLAYTON, Mo., April 3, 2024 /PRNewswire/ - Olin Corporation (NYSE: OLN) today announced the filing of antidumping and countervailing duty petitions against fiv

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 3, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Executive Officer Clawback Policy

Exhibit 97 OLIN CORPORATION Executive Officer Clawback Policy Amended and Restated as of December 7, 2023 The Olin Corporation Executive Officer Clawback Policy (“Policy”) applies only to Executive Officers (as defined below) of Olin Corporation, its subsidiaries and affiliates (“Olin”).

Amended and Restated 1997 Stock Plan for Non-employee Directors

Exhibit 10.5 OLIN CORPORATION AMENDED AND RESTATED 1997 STOCK PLAN FOR NON-EMPLOYEE DIRECTORS (Codified to reflect amendments adopted through December 6, 2023) 1. Purpose. The purpose of the Olin Corporation 1997 Stock Plan for Non-employee Directors (the “Plan”) is to promote the long-term growth and financial success of Olin Corporation by attracting and retaining non-employee directors of outst

Subsidiaries of Olin Corporation

Exhibit 21 SUBSIDIARIES OF OLIN CORPORATION1 (As of December 31, 2023) Company Jurisdiction Blue Cube Holding LLC DE Blue Cube Intermediate Holding 2 LLC DE Blue Cube International Holdings LLC DE Blue Cube IP LLC DE Blue Cube Operations LLC DE Blue Cube Spinco LLC DE Blue Water Alliance JV, LLC DE Henderson Groundwater LLC NV HPCM LLC DE Hunt Trading Co.

Description of Olin Corporation Securities registered under Section 12 of the Exchange Act

Exhibit 4.1 OLIN CORPORATION DESCRIPTION OF SECURITIES DESCRIPTION OF CAPITAL STOCK The following statements with respect to our capital stock are subject to the detailed provisions of our Amended and Restated Articles of Incorporation, as further amended or restated, which we refer to as the Articles of Incorporation, our Bylaws, as amended, which we refer to as the Bylaws, and the provisions of

Olin Corporation Contributing Employee Ownership Plan Amended and Restated effective as of January 1, 2018

Exhibit 10.23 Final Execution Version OLIN CORPORATION CONTRIBUTING EMPLOYEE OWNERSHIP PLAN Amended and Restated as of January 1, 2018 TABLE OF CONTENTS ARTICLE I DEFINITIONS........................................................................................................................................... 1 ARTICLE II PARTICIPATION............................................................

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORATION (

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Olin Announces New CEO

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces New CEO Clayton, MO, February 19, 2024 – Olin Corporation (NYSE: OLN) today announced the Board of Directors has appointed Kenneth Lane as President and Chief Executive Officer and Director of Olin Corporation effective Marc

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 15, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Offer Letter dated February 15, 2024 by and between Kenneth Lane and Olin Corporation—Exhibit 10.1 to Olin's Form 8-K filed February 20, 2024

Exhibit 10.1 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 February 15, 2024 Mr. Kenneth Lane Dear Mr. Lane, I am pleased to confirm our verbal offer of employment to you as President and Chief Executive Officer for Olin Corporation (“Olin” or the “Company”). Following your start date, you will be required to devote your full time and attention to this position and will be required to relinq

OLN / Olin Corporation / HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Passive Investment

SC 13G 1 hotchkiswiley-oln123123.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Olin Corporation (Name of Issuer) Common Stock, $1.00 par value per share (Title of Class of Securities) 680665205 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the approp

OLN / Olin Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0006-olincorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: Olin Corp Title of Class of Securities: Common Stock CUSIP Number: 680665205 Date of Event Which Requires Filing of this Statement: January 31, 2024 Check the appropriate box to designate the rule pursuan

OLN / Olin Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0006-olincorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Olin Corp Title of Class of Securities: Common Stock CUSIP Number: 680665205 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursua

Olin Announces Fourth Quarter 2023 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Fourth Quarter 2023 Results Highlights •Fourth quarter 2023 net income of $52.9 million, or $0.43 per diluted share •Quarterly adjusted EBITDA of $210.1 million •Share repurchases of $711.3 million in 2023 •Expect 2024 adjus

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 25, 2024 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Form of Olin Corporation Retention Agreement—Exhibit 10.1 to Olin's Form 8-K filed December 20, 2023

Exhibit 10.1 RETENTION AGREEMENT In consideration of the promises contained herein, Olin Corporation (the “Company”) and [•] (“you”), agree effective as of this [•] day of December, 2023 (the “Effective Date”) that: WHEREAS, you currently serve as [•] of the Company; WHEREAS, the Company wishes to incentivize you to retain your employment with the Company during a time of executive leadership tran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 20, 2023 OLIN CORPORATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 20, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Olin Corporation Section 16 Short-Term Incentive Plan—Exhibit 10.1 to Olin’s Form 8-K filed December 13, 2023

Exhibit 10.1 OLIN CORPORATION SECTION 16 OFFICER SHORT-TERM INCENTIVE PLAN January 1, 2024 TABLE OF CONTENTS Section 1. Incentive Plan Purposes.............................................................................................................1 Section 2. Effective Date; Performance Periods.........................................................................................1 Section 3

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 7, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Dated October 30, 2023 - Exhibit 10.1 to Olin

Exhibit 10.1 TRANSITION AGREEMENT In consideration of the promises contained herein, Olin Corporation (the “Company”) and Scott M. Sutton (“you”), agree that: WHEREAS, you currently serve as Chairman of the Board of Directors of the Company (the “Board”) and as President and Chief Executive Officer of the Company; WHEREAS, it has been announced that you will step down as President, Chief Executive

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

Olin Announces Third Quarter 2023 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Third Quarter 2023 Results Highlights •Third quarter 2023 net income of $104.1 million, or $0.82 per diluted share •Quarterly adjusted EBITDA of $314.8 million •Share repurchases of $202.1 million in third quarter 2023 •Four

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Olin Announces CEO Transition Plan

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces CEO Transition Plan Clayton, MO, September 1, 2023 – Olin Corporation (NYSE: OLN) today announced a mutual agreement that Scott Sutton will step down as President, Chief Executive Officer, and Chairman of the Board in the fi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2023 OLIN CORPORATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1

Olin Announces Second Quarter 2023 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Second Quarter 2023 Results Highlights •Second quarter 2023 net income of $146.9 million, or $1.13 per diluted share •Quarterly adjusted EBITDA of $351.1 million •Share repurchases of $186.9 million in second quarter 2023 •E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 27, 2023 OLIN CORPORATION (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 27, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

Olin Updates Second Quarter 2023 Outlook and Announces Additional Epoxy Restructuring Actions

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Updates Second Quarter 2023 Outlook and Announces Additional Epoxy Restructuring Actions Clayton, MO, June 20, 2023 – Olin Corporation (NYSE: OLN) announced today an updated outlook for the second quarter 2023. Olin's second quarter 2

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 20, 2023 OLIN CORPORATION (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 20, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2023 OLIN CORPORATION (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number)

Bylaws of Olin Corporation as amended effective June 5, 2023—Exhibit 3.1 to Olin's Form 8-K filed June 5, 2023

Exhibit 3.1 BYLAWS OF OLIN CORPORATION As Amended Effective June 5, 2023 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. SECTION 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the "Corporation") shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of Directo

Julie Piggott Appointed to Olin’s Board of Directors

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Julie Piggott Appointed to Olin’s Board of Directors Clayton, MO, June 5, 2023 – Olin Corporation (NYSE: OLN) announced today that Julie Piggott was appointed as a new director by Olin’s Board of Directors to serve on Olin’s Board effectiv

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 190 Carondelet Plaza, Suite 1530 Clayton, MO (Address of principal executive offices)

Conflict Minerals Report of Olin Corporation as required by Item 1.01 of this Form SD

EX-1.01 2 exhibit11to2022formsd.htm EX-1.01 TO FORM SD Exhibit 1.01 OLIN CORPORATION Conflict Minerals Report For the reporting period from January 1, 2022 to December 31, 2022 This Specialized Disclosure Report (this “Report”) of Olin Corporation (“Olin” or “we”) has been prepared to comply with Rule 13p-1 (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the yea

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Results of Operations and Financial Condition, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 26, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

Olin Announces First Quarter 2023 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces First Quarter 2023 Results Highlights •First quarter 2023 net income of $156.3 million, or $1.16 per diluted share •Quarterly adjusted EBITDA of $434.1 million •Share repurchases of $206.1 million in first quarter 2023 •Expe

Bylaws of Olin Corporation, as amended effective April 27, 2023

Exhibit 3.1 BYLAWS OF OLIN CORPORATION As Amended Effective April 27, 2023 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. SECTION 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the "Corporation") shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of Direc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 21, 2023 OLIN CORPORATION (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 21, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

Olin Announces Epoxy Facility Closures as Part of On-Going Restructuring Program

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Epoxy Facility Closures as Part of On-Going Restructuring Program Clayton, MO, March 21, 2023 – Olin Corporation (NYSE: OLN) announced today that it has made the decision to cease operations at its Cumene facility in Terneuz

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Filing Fee Table.**

EX-FILING FEES EXHIBIT 107 Calculation of Filing Fee Table Form S-3 (Form Type) Olin Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registra

Power of Attorney (included on the signature page to this Registration Statement).**

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on March 10, 2023.

Statement of Eligibility on Form T-1 of The Bank of New York Mellon Trust Company, N.A. as trustee with respect to the Indenture for the Debt Securities.**

EX-25.(a) EXHIBIT 25(a) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. (Exact name of trustee as specified in its c

Statement of Eligibility on Form T-1 of U.S. Bank Trust Company, National Association (as successor in interest to U.S. Bank National Association) as trustee with respect to the Indenture for the Debt Securities.**

EX-25.(b) EXHIBIT 25(b) SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-18210

Consent of KPMG LLP.**

EX-23.(a) EXHIBIT 23(a) Consent of Independent Registered Public Accounting Firm We consent to the use of our report dated February 23, 2023, with respect to the consolidated financial statements of Olin Corporation, and the effectiveness of internal control over financial reporting, incorporated herein by reference, and to the reference to our firm under the heading “Experts” in the prospectus. /

Summary of Stock Option/Performance Share Continuation Provisions for Olin Employees as amended effective September 1, 2021

Exhibit 10.24 OLIN STOCK OPTION/PERFORMANCE SHARE CONTINUATION PROVISIONS FOR OLIN EMPLOYEES September 1, 2021 After the end of an employee’s employment at Olin or a subsidiary, the employee’s vested Olin stock options remain exercisable for a specified period of time. The various plans permit that period to be extended by Olin. The continuation provisions included in the Long Term Incentive Plans

Description of Restricted Stock Unit Awards granted under one of Olin's Long Term Incentive Plans—Exhibit 10.6 to Olin's Form 10-K filed February 23, 2023

Exhibit 10.6 DESCRIPTION OF RESTRICTED STOCK UNIT AWARD GRANTED UNDER THE OLIN CORPORATION 2021 LONG TERM INCENTIVE PLAN 1.Terms The terms and conditions of these Restricted Stock Units are contained in the Award Certificate evidencing the grant of such Award, this Award Description and in the Olin Corporation 2021 Long Term Incentive Plan (the “Plan”). 2. Definition “Vesting Date” means with resp

Performance Share Program adopted February 22, 2023

Exhibit 10.17 OLIN CORPORATION PERFORMANCE SHARE PROGRAM As Amended through February 22, 2023 1.Terms and Conditions The terms and conditions of the Performance Share Awards granted under this Program are contained in the Performance Share Award certificate evidencing such Award, this Program and the LTIP. 2.Definitions “Common Stock” means the common stock of Olin, par value $1.00 per share. “Fin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2023 OLIN CORPORATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Form of Restricted Stock Unit Award Certificate—Exhibit 10.20 to Olin's Form 10-K filed February 23, 2023

Exhibit 10.20 OLIN CORPORATION 2021 Long Term Incentive Plan Restricted Stock Unit Award Restricted Stock Unit Certificate This certificate certifies that the employee named below has been awarded on the date hereof the number of Restricted Stock Units shown below. Subject to the terms and conditions of the Olin Corporation 2021 Long Term Incentive Plan and related Award Description and the rules

Form of Non-Qualified Stock Option Award Certificate—Exhibit 10.19 to Olin's Form 10-K filed February 23, 2023

Exhibit 10.19 OLIN CORPORATION Non-Qualified Stock Option Agreement The optionee named below is hereby granted an option to purchase the number of shares of Common Stock of Olin Corporation (“Shares”) at the price set forth below, in accordance with and subject to the terms and restrictions of the Olin Corporation 20«PLANYEAR» Long Term Incentive Plan (the “Plan"), and of this option: OPTIONEE: Nu

Bylaws of Olin Corporation as amended effective February 22, 2023

Exhibit 3.2 BYLAWS OF OLIN CORPORATION As Amended Effective February 22, 2023 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. SECTION 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the "Corporation") shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of Di

Subsidiaries of Olin Corporation

Exhibit 21 SUBSIDIARIES OF OLIN CORPORATION1 (As of December 31, 2022) Company Shareholders/Members % Ownership Jurisdiction Blue Cube Holding LLC Blue Cube Spinco LLC 100 DE Blue Cube Intermediate Holding 2 LLC Blue Cube International Holdings LLC 100 DE Blue Cube International Holdings LLC Blue Cube Spinco LLC 100 DE Blue Cube IP LLC Blue Cube Holding LLC 100 DE Blue Cube Operations LLC Blue Cube Holding LLC 100 DE Blue Cube Spinco LLC Olin 100 DE Blue Water Alliance JV, LLC Olin 100 DE Henderson Groundwater LLC Pioneer Americas LLC has a 1/3 ownership in this limited liability company that will be treated as a partnership for income tax purposes 33 NV HPCM LLC K.

Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORATION (

Form of Performance Award Certificate—Exhibit 10.21 to Olin's Form 10-K filed February 23, 2023

Exhibit 10.21 OLIN CORPORATION PERFORMANCE SHARE AWARD CERTIFICATE Under Performance Share Program This certifies that has been awarded: TSR Performance Shares, and Net Income Performance Shares, subject to the terms and conditions of the Olin Corporation Performance Share Program (the “Program”), a copy of which is attached. This Performance Share Award has been issued pursuant to the Olin Corpor

Description of Olin Corporation Securities registered under Section 12 of the Exchange Act

Exhibit 4.1 OLIN CORPORATION DESCRIPTION OF SECURITIES DESCRIPTION OF CAPITAL STOCK The following statements with respect to our capital stock are subject to the detailed provisions of our Amended and Restated Articles of Incorporation, as further amended or restated, which we refer to as the Articles of Incorporation, our Bylaws, as amended, which we refer to as the Bylaws, and the provisions of

OLN / Olin Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0095-olincorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Olin Corp. Title of Class of Securities: Common Stock CUSIP Number: 680665205 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursu

Olin Announces Fourth Quarter 2022 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Fourth Quarter 2022 Results Highlights •Fourth quarter 2022 net income of $196.6 million, or $1.43 per diluted share •Quarterly adjusted EBITDA of $441.8 million •Share repurchases of $1.35 billion in 2022 •Expect 2023 adjus

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 26, 2023 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

OLN / Olin Corporation / Sachem Head Capital Management LP - SCHEDULE 13D (AMENDMENT NO. 6) Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 6)* Olin Corporation (Name of Issuer) Common Stock, par value $1.00 per share (Title of Class of Securities) 6806

OLN / Olin Corporation / Sachem Head Capital Management LP - AMENDMENT NO. 5 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 5)* Olin Corporation (Name of Issuer) Common Stock, par value $1.00 per share (Title of Class of Securities) 6806

RESIGNATION LETTER

Exhibit 99.6 RESIGNATION LETTER November 9, 2022 Scott M. Sutton, Chairman of the Board Olin Corporation 190 Carondolet Plaza, Suite 1530 Clayton, MO 63105 Dear Mr. Sutton: I hereby tender my resignation as a member of the board of directors (the “Board”) and of the Compensation Committee of the Board of Olin Corporation (the “Company”), effective as of the date hereof. Please note that my resigna

Olin Announces the Resignation of Scott Ferguson from the Board of Directors

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces the Resignation of Scott Ferguson from the Board of Directors Clayton, MO, November 10, 2022 ? Olin Corporation (NYSE: OLN) announced today that Mr. Scott Ferguson, Managing Partner of Sachem Head Capital Management, has res

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 9, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Bylaws of Olin Corporation as amended effective November 9, 2022.

Exhibit 3.1 BYLAWS OF OLIN CORPORATION As Amended Effective November 9, 2022 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. SECTION 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the ?Corporation?) shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of Dir

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

Amendment No. 9 to Receivables Financing Agreement and Reaffirmation of Performance Guaranty, dated as of October 11, 2022, among Olin Corporation, as servicer, Olin Finance Company, LLC, as borrower, PNC Bank, National Association, as administrative agent, PNC Capital Markets LLC, as structuring agent, and the Lender parties thereto — Exhibit 10.2 to Olin's Form 10Q filed October 27, 2022

Exhibit 10.2 EXECUTION VERSION AMENDMENT NO. 9 TO RECEIVABLES FINANCING AGREEMENT AND REAFFIRMATION OF PERFORMANCE GUARANTY This AMENDMENT NO. 9 TO RECEIVABLES FINANCING AGREEMENT AND REAFFIRMATION OF PERFORMANCE GUARANTY (this ?Amendment?), dated as of October 11, 2022, is entered into by and among OLIN FINANCE COMPANY, LLC (?Olin Finance?), as borrower under the Receivables Financing Agreement (

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Olin Announces Third Quarter 2022 Results

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Third Quarter 2022 Results Highlights ?Third quarter 2022 net income of $315.2 million, or $2.18 per diluted share ?Quarterly adjusted EBITDA of $547.8 million ?Share repurchases of $410.9 million in third quarter 2022 Clayt

Amendment No. 9 to Receivables Financing Agreement and Reaffirmation of Performance Guaranty, dated as of October 11, 2022, among Olin Corporation, as servicer, Olin Finance Company, LLC, as borrower, PNC Bank, National Association, as administrative agent, PNC Capital Markets LLC, as structuring agent, and the Lender parties thereto.

Exhibit 10.2 EXECUTION VERSION AMENDMENT NO. 9 TO RECEIVABLES FINANCING AGREEMENT AND REAFFIRMATION OF PERFORMANCE GUARANTY This AMENDMENT NO. 9 TO RECEIVABLES FINANCING AGREEMENT AND REAFFIRMATION OF PERFORMANCE GUARANTY (this ?Amendment?), dated as of October 11, 2022, is entered into by and among OLIN FINANCE COMPANY, LLC (?Olin Finance?), as borrower under the Receivables Financing Agreement (

Credit Agreement, dated as of October 11, 2022, among Olin Corporation, the Lenders and Issuing Banks (as defined therein) and Bank of America, N.A.

Exhibit 10.1 Execution Version Published CUSIP Number: 68066LBC4 Revolving Advance CUSIP Number: 68066LBD2 Initial Term Loan CUSIP Number: 68066LBE0 US$1,550,000,000 CREDIT AGREEMENT Dated as of October 11, 2022 among OLIN CORPORATION, as Borrower THE LENDERS NAMED HEREIN, as Lenders BANK OF AMERICA, N.A., as Administrative Agent BANK OF AMERICA, N.A., JPMORGAN CHASE BANK, N.A., SUMITOMO MITSUI BA

Twelfth Amendment to Amended and Restated Credit and Funding Agreement, dated as of October 11, 2022, among Olin Corporation, the Lenders (as defined therein), and PNC Bank, National Association, as administrative agent - Exhibit 4.1 to Olin's Form 8-K filed October 12, 2022

Exhibit 4.1 TWELFTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND FUNDING AGREEMENT by and among OLIN CORPORATION as Borrower and OLIN WINCHESTER, LLC and THE LENDERS PARTY HERETO and PNC BANK, NATIONAL ASSOCIATION as Administrative Agent and PNC CAPITAL MARKETS LLC as Lead Arranger and Sole Bookrunner Dated as of October 11, 2022 This TWELFTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND FUNDING AG

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 11, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Olin Announces Chlorinated Organics Capacity Reduction

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Chlorinated Organics Capacity Reduction Clayton, MO, October 3, 2022 ? Olin Corporation (NYSE: OLN) announced today that it expects to cease methylene chloride and chloroform production at its Stade, Germany facility by thir

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 3, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numb

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File N

Olin Updates Third Quarter 2022 Outlook and Announces Earnings Conference Call

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Updates Third Quarter 2022 Outlook and Announces Earnings Conference Call Clayton, MO, September 20, 2022 ? Olin Corporation (NYSE: OLN) announced today it now expects third quarter 2022 adjusted EBITDA to be in the range of $530 - $5

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 24, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numb

OLIN ANNOUNCES CHLOR ALKALI CAPACITY REDUCTION

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN ANNOUNCES CHLOR ALKALI CAPACITY REDUCTION Clayton, MO, August 24, 2022 ? Olin Corporation (NYSE: OLN) announced today that it plans to permanently shut down approximately 225,000 ECU tons of diaphragm-grade chlor alkali capacity at it

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1

Olin Announces Second Quarter 2022 Results and $2 Billion Share Repurchase Program

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces Second Quarter 2022 Results and $2 Billion Share Repurchase Program Highlights ?Second quarter 2022 net income of $422.1 million, or $2.76 per diluted share ?Record quarterly adjusted EBITDA of $727.3 million ?Share repurcha

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

OLIN PROVIDES OPERATIONS UPDATE

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN PROVIDES OPERATIONS UPDATE Clayton, MO, June 14, 2022 ? Olin Corporation (NYSE: OLN) announced that half of its Plaquemine, Louisiana chlor alkali facility has returned to operation, which has been down since April 2022, with the rema

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORA

Conflict Minerals Report of Olin Corporation as required by Item 1.01 of this Form SD

Exhibit 1.01 OLIN CORPORATION Conflict Minerals Report For the reporting period from January 1, 2021 to December 31, 2021 This Specialized Disclosure Report (this ?Report?) of Olin Corporation (?Olin? or ?we?) has been prepared to comply with Rule 13p-1 (the ?Rule?) promulgated under the Securities Exchange Act of 1934, as amended, for the year ended December 31, 2021. The Rule requires us to disc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 190 Carondelet Plaza, Suite 1530 Clayton, MO (Address of principal executive offices)

OLN / Olin Corporation / Sachem Head Capital Management LP - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 4)* Olin Corporation (Name of Issuer) Common Stock, par value $1.00 per share (Title of Class of Securities) 6806

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-

Regulation FD Disclosure, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

OLIN ANNOUNCES FIRST QUARTER 2022 RESULTS

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN ANNOUNCES FIRST QUARTER 2022 RESULTS Highlights ?First quarter 2022 net income of $393.0 million, or $2.48 per diluted share ?Record quarterly adjusted EBITDA of $710.9 million ?Share repurchases of $263.2 million in first quarter 202

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

EUROPEAN EPOXY RESIN PRODUCTION CURTAILED

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 EUROPEAN EPOXY RESIN PRODUCTION CURTAILED Clayton, MO, March 14, 2022 ? Olin Corporation (NYSE: OLN) announced that it is temporarily curtailing integrated epoxy production at its Stade, Germany facility. During first quarter 2022, Olin ha

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 14, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

OLIN CORPORATION PERFORMANCE SHARE PROGRAM As Amended through February 22, 2022

Exhibit 99.1 OLIN CORPORATION PERFORMANCE SHARE PROGRAM As Amended through February 22, 2022 1. Terms and Conditions The terms and conditions of the Performance Share Awards granted under this Program are contained in the Performance Share Award certificate evidencing such Award, this Program and the LTIP. 2. Definitions ?Common Stock? means the common stock of Olin, par value $1.00 per share. ?Fi

Subsidiaries of Olin Corporation

Exhibit 21 SUBSIDIARIES OF OLIN CORPORATION1 (As of December 31, 2021) Company Shareholders/Members % Ownership Jurisdiction Blue Cube Holding LLC Blue Cube Spinco LLC 100 DE Blue Cube Intermediate Holding 1 LLC Blue Cube Intermediate Holding 2, LLC 100 DE Blue Cube Intermediate Holding 2 LLC Blue Cube Holdings C.

Amended and Restated 1997 Stock Plan for Non-employee Directors codified to reflect amendments adopted through October 27, 2021

Exhibit 10.5 OLIN CORPORATION AMENDED AND RESTATED 1997 STOCK PLAN FOR NON-EMPLOYEE DIRECTORS (Codified to reflect amendments adopted through October 27, 2021) 1. Purpose. The purpose of the Olin Corporation 1997 Stock Plan for Non-employee Directors (the ?Plan?) is to promote the long-term growth and financial success of Olin Corporation by attracting and retaining non-employee directors of outst

Description of Olin Corporation Securities registered under Section 12 of the Exchange Act

Exhibit 4.1 OLIN CORPORATION DESCRIPTION OF SECURITIES DESCRIPTION OF CAPITAL STOCK The following statements with respect to our capital stock are subject to the detailed provisions of our Amended and Restated Articles of Incorporation, as further amended or restated, which we refer to as the Articles of Incorporation, our bylaws, as amended, which we refer to as the bylaws, and the provisions of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORATION (

Amendment No. 8 dated January 20, 2022 to Receivables Financing Agreement dated December 20, 2016 among Olin Corporation, Olin Finance Company, LLC, PNC Bank, National Association, PNC Capital Markets LLC and the Lender parties thereto—Exhibit 4.53 to Olin’s Form 10-K filed February 24, 2022

Exhibit 4.53 AMENDMENT NO. 8 TO RECEIVABLES FINANCING AGREEMENT AND REAFFIRMATION OF PERFORMANCE GUARANTY This AMENDMENT NO. 8 TO RECEIVABLES FINANCING AGREEMENT AND REAFFIRMATION OF PERFORMANCE GUARANTY (this ?Amendment?), dated as of January 20, 2022, is entered into by and among OLIN FINANCE COMPANY, LLC (?Olin Finance?), as borrower under the Receivables Financing Agreement (as defined below)

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

FREEPORT POWER PRODUCTION REDUCED

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 FREEPORT POWER PRODUCTION REDUCED Clayton, MO, February 16, 2022 ? Olin Corporation (NYSE: OLN) announced that our Freeport, Texas facility experienced mechanical failures at two of its six power generation units over the past weekend. The

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

OLN / Olin Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Olin Corp. Title of Class of Securities: Common Stock CUSIP Number: 680665205 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 13d

OLN / Olin Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Olin Corp. Title of Class of Securities: Common Stock CUSIP Number: 680665205 Date of Event Which Requires Filing of this Statement: January 31, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 13d

OLN / Olin Corporation / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Olin Corp (Name of Issuer) Common Stock (Title of Class of Securities) 680665205 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

OLIN ANNOUNCES FOURTH QUARTER 2021 RESULTS

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN ANNOUNCES FOURTH QUARTER 2021 RESULTS Highlights ?Fourth quarter 2021 net income of $306.6 million and adjusted EBITDA of $686.7 million ?Net debt to adjusted EBITDA ratio down to 1.0 times ?Share repurchases of $183.6 million in four

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2022 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Olin Corporation 2022 Short Term Incentive Program dated December 10, 2021—Exhibit 10.1 to Olin’s Form 8-K filed December 10, 2021

2022 Short Term Incentive Program (STIP) Plan Provision Terms of the Plan Program Participation ? Section 16b Officers ? All salaried and hourly-paid employees eligible for variable compensation Financial Objectives ? Corporate ? Adjusted EBITDA, Levered Free Cash Flow ? Chemicals (Combined CAPV and Epoxy) ? Adjusted EBITDA, Adjusted Cash Flow ? Winchester ? Adjusted EBITDA, Adjusted Cash Flow Non

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Restricted Stock Award to Damian Gumpel dated December 10, 2021 and related Description—Exhibit 10.2 to Olin’s Form 8-K filed December 10, 2021

Exhibit 10.2 OLIN CORPORATION 2018 Long Term Incentive Plan Restricted Stock Unit Award Restricted Stock Unit Certificate This certificate certifies that the employee named below has been awarded on the date hereof the number of Restricted Stock Units shown below. Subject to the terms and conditions of the Olin Corporation 2018 Long Term Incentive Plan and related Award Description and the rules a

Second Supplemental Indenture, dated as of November 15, 2021, by and between Olin Corporation and U.S. Bank National Association

Exhibit 4.1 SECOND SUPPLEMENTAL INDENTURE SECOND SUPPLEMENTAL INDENTURE, (this ?Second Supplemental Indenture?) dated as of November 15, 2021, by and among Olin Corporation, a Virginia corporation (?Issuer?), and U.S. Bank National Association, as Trustee under the Indenture referred to below. W I T N E S S E T H: WHEREAS, each of the Issuer and the Trustee have heretofore executed and delivered a

Olin Corporation Announces Early Tender Results and Upsize of Cash Tender Offer and Solicitation of Consents Relating to its 9.500% Senior Notes due 2025

Exhibit 99.1 Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Corporation Announces Early Tender Results and Upsize of Cash Tender Offer and Solicitation of Consents Relating to its 9.500% Senior Notes due 2025 Clayton, MO, November 16, 2021 ? Olin Corporation (the ?Issuer,? ?us? or ?we?) (NYSE: OLN) today announced the early tender results of its offer to purchase (the ?

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

OLIN CORPORATION ANNOUNCES RETIREMENT AND LEADERSHIP CHANGES

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN CORPORATION ANNOUNCES RETIREMENT AND LEADERSHIP CHANGES Clayton, MO, November 15, 2021 ? Olin Corporation (NYSE: OLN) announced that Pat D. Dawson, Olin?s Executive Vice President and President, Epoxy and International, will retire fr

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Nu

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

Olin Corporation Announces Cash Tender Offer and Solicitation of Consents Relating to its 9.500% Senior Notes due 2025

Exhibit 99.1 News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Corporation Announces Cash Tender Offer and Solicitation of Consents Relating to its 9.500% Senior Notes due 2025 Clayton, MO, November 1, 2021 ? Olin Corporation (the ?Issuer,? ?us? or ?we?) (NYSE: OLN) today announced that it has commenced a tender offer to purchase (the ?Offer?) for cash, subject to cer

Olin Announces $1 Billion Share Repurchase Program

EX-99.1 2 ex99-1.htm PRESS RELEASE Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Announces $1 Billion Share Repurchase Program Clayton, MO, November 1, 2021 – Olin Corporation (NYSE: OLN) today announced that its Board of Directors approved a new $1.0 billion share repurchase pro

Eleventh Amendment dated August 30, 2021 to Amended and Restated Credit and Funding Agreement dated December 9, 2010 among Olin Corporation, Olin Winchester, LLC, the Lenders as named therein, and PNC Bank, National Association, as administrative agent for the Lenders—Exhibit 4.1 to Olin’s Form 10-Q filed October 22, 2021

Exhibit 4.1 ELEVENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND FUNDING AGREEMENT by and among OLIN CORPORATION as Borrower and OLIN WINCHESTER, LLC and THE LENDERS PARTY HERETO and PNC BANK, NATIONAL ASSOCIATION as Administrative Agent and PNC CAPITAL MARKETS LLC as Lead Arranger and Sole Bookrunner Dated as of August 30, 2021 This ELEVENTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND FUNDING A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

First Amendment dated August 30, 2021 to Forward Purchase Agreement dated March 9, 2017, among Olin Corporation, Olin Winchester, LLC, the Lenders as named therein, and PNC Bank, National Association , as administrative agent—Exhibit 4.2 to Olin’s Form 10-Q filed October 22, 2021

Exhibit 4.2 FIRST AMENDMENT TO FORWARD PURCHASE AGREEMENT (2017) by and among OLIN CORPORATION as Borrower and Olin Winchester, LLC and THE LENDERS PARTY HERETO and PNC BANK, NATIONAL ASSOCIATION as Administrative Agent and PNC CAPITAL MARKETS LLC as Lead Arranger and Sole Bookrunner Dated as of August 30, 2021 FIRST AMENDMENT TO FORWARD PURCHASE AGREEMENT (2017) THIS FIRST AMENDMENT TO FORWARD PU

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Num

OLIN ANNOUNCES THIRD QUARTER 2021 RESULTS

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN ANNOUNCES THIRD QUARTER 2021 RESULTS Third Quarter 2021 Highlights ?Net income of $390.7 million and record adjusted EBITDA of $707.0 million ?ECU Profit Contribution Index improved by 16% compared to second quarter ?Epoxy and Winches

Olin Corporation Announces Changes to Its Board of Directors

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 Olin Corporation Announces Changes to Its Board of Directors Clayton, MO, September 30, 2021 ? Olin Corporation (NYSE: OLN) announced today that Matthew S. Darnall and W. Anthony Will were each elected as a new director by Olin?s Board of

Bylaws of Olin Corporation as amended effective September 30, 2021

Exhibit 3.1 BYLAWS OF OLIN CORPORATION As Amended Effective September 30, 2021 BYLAWS of OLIN CORPORATION ARTICLE I. MEETINGS OF SHAREHOLDERS. SECTION 1. Place of Meetings. All meetings of the shareholders of Olin Corporation (hereinafter called the ?Corporation?) shall be held at such place, either within or without the Commonwealth of Virginia, as may from time to time be fixed by the Board of D

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 27, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File N

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 28, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File N

Amendment No. 7 dated September 28, 2021 to Receivables Financing Agreement dated December 20, 2016 among Olin Corporation, Olin Finance Company, LLC, PNC Bank, National Association, PNC Capital Markets LLC and the Lender parties thereto—Exhibit 10.1 to Olin’s Form 8-K filed September 29, 2021

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 7 TO RECEIVABLES FINANCING AGREEMENT This AMENDMENT NO. 7 TO RECEIVABLES FINANCING AGREEMENT (this ?Amendment?), dated as of September 28, 2021, is entered into by and among OLIN FINANCE COMPANY, LLC (?Olin Finance?), as borrower under the Receivables Financing Agreement (as defined below) (in such capacity, together with its successors and permitted as

OLN / Olin Corporation / Sachem Head Capital Management LP - AMENDMENT NO. 3 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO ? 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO ? 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 3)* Olin Corporation (Name of Issuer) Common Stock, par value $1.00 per share (Title of Class of Securities) 6806

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 27, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number

OLIN ANNOUNCES SECOND QUARTER 2021 RESULTS

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN ANNOUNCES SECOND QUARTER 2021 RESULTS Second Quarter 2021 Highlights ?Net income of $355.8 million and record adjusted EBITDA of $559.2 million ?ECU Profit Contribution Index improved by 30% compared to first quarter ?Epoxy and Winche

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 11-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-1070 OLIN CORPORATION CONTRIBUTING

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

Conflict Minerals Report of Olin Corporation as required by Item 1.01 of this Form SD

Exhibit 1.01 OLIN CORPORATION Conflict Minerals Report For the reporting period from January 1, 2020 to December 31, 2020 This Specialized Disclosure Report (this ?Report?) of Olin Corporation (?Olin? or ?we?) has been prepared to comply with Rule 13p-1 (the ?Rule?) promulgated under the Securities Exchange Act of 1934, as amended, for the year ended December 31, 2020. The Rule requires us to disc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 190 Carondelet Plaza, Suite 1530 Clayton, MO (Address of principal executive offices)

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2021 OLIN CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-1070 13-1872319 (State or Other Jurisdiction of Incorporation) (Commission File Number)

OLIN ANNOUNCES FURTHER CHLOR ALKALI CAPACITY REDUCTION

Exhibit 99.1 Investor Contact: Steve Keenan (314) 719-1755 [email protected] News Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105 OLIN ANNOUNCES FURTHER CHLOR ALKALI CAPACITY REDUCTION Clayton, MO, May 18, 2021 ? Olin Corporation (NYSE: OLN) announced today that it plans to permanently shut down approximately 20% of its diaphragm-grade chlor alkali capacity (approxim

PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101 Washington, D.