HUN / Huntsman Corporation - SEC Filings, Annual Report, Proxy Statement

Huntsman Corporation
US ˙ NYSE ˙ US4470111075

Basic Stats
LEI 5299000V56320A7RIQ67
CIK 1307954
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Huntsman Corporation
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
September 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 29, 2025 Huntsman Corporatio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 29, 2025 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

September 4, 2025 EX-99.1

Huntsman Announces Retirement of David Stryker and Appoints Julia Wright as Executive Vice President, General Counsel and Secretary

Exhibit 99.1 FOR IMMEDIATE RELEASE Investor Relations: September 4, 2025 Ivan Marcuse The Woodlands, TX (281) 719-4637 NYSE: HUN Huntsman Announces Retirement of David Stryker and Appoints Julia Wright as Executive Vice President, General Counsel and Secretary THE WOODLANDS, Texas — Huntsman Corporation (NYSE: HUN) announced today that Julia Wright will join Huntsman as Executive Vice President, G

August 1, 2025 10-Q

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, 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 Exa

July 31, 2025 EX-99.1

Huntsman Announces Second Quarter 2025 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: July 31, 2025 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces Second Quarter 2025 Earnings Second Quarter Highlights · Second quarter 2025 net loss attributable to Huntsman of $158 million compared to net income of $22 million in the prior year period; second quarter

July 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 31, 2025 Huntsman Corporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 31, 2025 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 27, 2025 EX-10.1

23, 2025, by and among Huntsman International LLC, Citibank, N.A., as Administrative Agent, and the Lenders party thereto

Exhibit 10.1 Execution Version SECOND AMENDMENT This Second Amendment, dated as of May 23, 2025 (the “Amendment”), to the Credit Agreement (as defined below) is by and among Huntsman International LLC, a Delaware limited liability company (the “Borrower”), the Lenders party hereto and Citibank, N.A., as Administrative Agent for the Lenders (in such capacity, the “Administrative Agent”). Capitalize

May 27, 2025 8-K

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, 2025 Huntsman 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) May 23, 2025 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or Other Jurisdiction of Incorporation) (Commission File N

May 16, 2025 CORRESP

May 15, 2025

May 15, 2025 Philip M. Lister Executive Vice President, Chief Financial Officer and Manager Via EDGAR Transmission Office of Industrial Applications and Services United States Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attn: Julie Sherman and Kristin Lochhead Re: Huntsman Corporation Form 10-K for the Fiscal Year Ended December 31,

May 2, 2025 10-Q

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, 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 Ex

May 2, 2025 EX-99.1

Huntsman Announces Officer Changes: Tony Hankins to Retire and Steen Weien Hansen Named Division President, Huntsman Polyurethanes

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: May 1, 2025 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces Officer Changes: Tony Hankins to Retire and Steen Weien Hansen Named Division President, Huntsman Polyurethanes THE WOODLANDS, Texas — Huntsman Corporation (NYSE: HUN) announced today that Tony Hankins, the

May 2, 2025 EX-10.1

Huntsman Corporation 2025 Stock Incentive Plan

Exhibit 10.1 HUNTSMAN CORPORATION 2025 sTOCK INCENTIVE PLAN 1.              Purpose. The purpose of the Huntsman Corporation 2025 Stock Incentive Plan (the “Plan”) is to provide a means through which (a) Huntsman Corporation, a Delaware corporation (the “Company”), and the Subsidiaries and Affiliates may attract, retain and motivate qualified persons as employees, directors and consultants, thereb

May 2, 2025 8-K

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, DC 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, 2025 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 2, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 30, 2025 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 2, 2025 EX-4.8

Form of Common Stock Award Agreement.

Exhibit 4.8 HUNTSMAN CORPORATION 2025 STOCK INCENTIVE PLAN Notice of Award of Common Stock Grantee: Date of Grant: CSA Grant Number: Number of Shares Granted: 1.      Notice of Grant. You are hereby granted pursuant to the Huntsman Corporation 2025 Stock Incentive Plan (the “Plan”) the number of shares of Common Stock (“Common Stock”) of Huntsman Corporation (the “Company”) set forth above, subjec

May 2, 2025 EX-4.4

Form of Restricted Stock Agreement

Exhibit 4.4 HUNTSMAN CORPORATION 2025 STOCK INCENTIVE PLAN Restricted Stock Agreement Grantee: Date of Grant: Restricted Stock Grant Number: Number of Restricted Shares Granted: 1.     Notice of Grant. You are hereby granted pursuant to the Huntsman Corporation 2025 Stock Incentive Plan (the “Plan”) the number of restricted shares of Common Stock (“Restricted Stock”) of Huntsman Corporation (the “

May 2, 2025 EX-4.6

Form of Phantom Share Agreement

  Exhibit  4.6   HUNTSMAN CORPORATION 2025 STOCK INCENTIVE PLAN   Phantom Share Agreement   Grantee:   Date of Grant:   Phantom Share Grant Number:   Number of Phantom Shares Granted:     1.    Notice of Grant. You are hereby granted pursuant to the Huntsman Corporation 2025 Stock Incentive Plan (the “Plan”) the number of Phantom Shares of Huntsman Corporation (the “Company”) set forth above, subj

May 2, 2025 S-8

As filed with the Securities and Exchange Commission on May 2, 2025

As filed with the Securities and Exchange Commission on May 2, 2025 Registration No.

May 2, 2025 EX-4.5

Form of Restricted Stock Unit Agreement (3-year)

Exhibit 4.5 HUNTSMAN CORPORATION 2025 STOCK INCENTIVE PLAN Restricted Stock Agreement Grantee: Date of Grant: Restricted Stock Grant Number: Number of Restricted Shares Granted: 1. Notice of Grant. You are hereby granted pursuant to the Huntsman Corporation 2025 Stock Incentive Plan (the “Plan”) the number of restricted shares of Common Stock (“Restricted Stock”) of Huntsman Corporation (the “Comp

May 2, 2025 EX-FILING FEES

Calculation of Filing Fee Tables.

Calculation of Filing Fee Tables S-8 Huntsman CORP Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Common Stock, par value $0.

May 2, 2025 EX-4.7

Form of Performance Share of Performance Share Unit Agreement (3-year)

Exhibit 4.7 HUNTSMAN CORPORATION 2025 STOCK INCENTIVE PLAN Performance Share Unit Award Agreement Grantee: Date of Grant: Target Number of Performance Share Units: Maximum Number of Performance Share Units: 1.     Notice of Grant. You are hereby granted pursuant to the Huntsman Corporation 2025 Stock Incentive Plan (the “Plan”) the number of performance-based Restricted Stock Units (“Performance S

May 2, 2025 EX-4.9

Form of Stock Unit Award Agreement

Exhibit 4.9 HUNTSMAN CORPORATION 2025 STOCK INCENTIVE PLAN Stock Unit Agreement for Outside Directors Grantee: Date of Grant: SUA Grant Number: Number of Stock Units Granted: 1. Notice of Grant. You are hereby granted pursuant to the Huntsman Corporation 2025 Stock Incentive Plan (the “Plan”) the number of Stock Units of Huntsman Corporation (the “Company”) set forth above, subject to the terms an

May 1, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 1, 2025 EX-99.1

Huntsman Announces First Quarter 2025 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: May 1, 2025 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces First Quarter 2025 Earnings First Quarter Highlights · First quarter 2025 net loss attributable to Huntsman of $5 million compared to net loss of $37 million in the prior year period; first quarter 2025 dilu

March 17, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ¨ Defin

March 17, 2025 DEF 14A

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

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Rul

February 18, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 17, 2025 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 18, 2025 EX-4.9

Description of Securities

Exhibit 4.9 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 18, 2025, Huntsman Corporation (the “Company,” “we,” “us” or “our”) has its common stock, par value $0.01 per share (the “Common Stock”), registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Huntsman Internati

February 18, 2025 EX-19.1

Huntsman Corporation Insider Trading Policy

Exhibit 19.1 Huntsman Global Insider Trading Policy Statement Huntsman is committed to conducting its business in a trustworthy manner, consistent with our core values of honesty, integrity, respect, and responsibility. To sustain the trust we have earned in the investment community, Huntsman does not engage in insider tradings and prohibits anyone working for or on behalf of Huntsman from engagin

February 18, 2025 EX-10.43

First Amendment to the Credit Agreement, dated February 12, 2025, by and among Huntsman International LLC, the Lenders party thereto and Citibank, N.A., as Administrative Agent for the Lenders

Exhibit 10.43 FIRST AMENDMENT This First Amendment, dated as of February 12, 2025 (the “Amendment”), to the Credit Agreement (as defined below) is by and among Huntsman International LLC, a Delaware limited liability company (the “Borrower”), the Lenders party hereto and Citibank, N.A., as Administrative Agent for the Lenders (in such capacity, the “Administrative Agent”). Capitalized terms used h

February 18, 2025 EX-99.1

Huntsman Announces Fourth Quarter 2024 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: February 17, 2025 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces Fourth Quarter 2024 Earnings Fourth Quarter Highlights • Fourth quarter 2024 net loss attributable to Huntsman of $141 million compared to net loss of $71 million in the prior year period; fourth quart

February 18, 2025 EX-10.44

Third Amended and Restated Severance Agreement, dated February 14, 2025, between Huntsman Corporation and Peter R. Huntsman

Exhibit 10.44 THIRD AMENDED AND RESTATED SEVERANCE AGREEMENT THIS THIRD AMENDED AND RESTATED SEVERANCE AGREEMENT (this “Agreement’) is made and entered into as of the 14th day of February, 2025 (the “Effective Date”) by and between Huntsman Corporation, a Delaware corporation (the “Company”), and Peter R. Huntsman (the “Executive”). WHEREAS, the Company and the Executive originally entered into th

February 18, 2025 EX-21.1

Subsidiaries of Huntsman Corporation

Exhibit 21.1 SUBSIDIARIES OF HUNTSMAN CORPORATION Name of Subsidiary JURISDICTION OF INCORPORATION OR ORGANIZATION Huntsman Argentina S.R.L. Argentina Huntsman Chemical Company Australia Pty Limited Australia Huntsman Polyurethanes (Australia) Pty Limited Australia Huntsman Advanced Materials (Austria) GmbH Austria Production-trade unitary enterprise Huntsman-NMG Belarus Huntsman Advanced Material

February 18, 2025 10-K

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

Table of Contents 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 Commission File Number Exact Name of Registrant as Specified in

November 5, 2024 10-Q

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, 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 Numbe

November 4, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 4, 2024 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

November 4, 2024 EX-99.1

Huntsman Announces Third Quarter 2024 Earnings

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: November 4, 2024 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces Third Quarter 2024 Earnings Third Quarter Highlights · Third quarter 2024 net loss attributable to Huntsman of $33 million compared to net income of $0 million in the prior year period; third quarter 2024 diluted lo

September 26, 2024 EX-4.2

First Supplemental Indenture, dated as of September 24, 2024, by and between Huntsman International LLC and U.S. Bank Trust Company, National Association, as trustee.

  Exhibit 4.2   Execution Version     HUNTSMAN INTERNATIONAL LLC and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee       FIRST SUPPLEMENTAL INDENTURE   Dated as of September 26, 2024       5.700% Senior Notes due 2034           TABLE OF CONTENTS   Page   Article 1 DEFINITIONS AND RELATION TO BASE INDENTURE 1     Section 1.01 Definitions 1 Section 1.02 Supplemental Indenture 10       Art

September 26, 2024 8-K

Entry into a Material Definitive Agreement, 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): September 24, 2024 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or Other Jurisdiction of Incorporation) (Commission

September 26, 2024 EX-1.1

Underwriting Agreement, dated as of September 24, 2024, among Huntsman International LLC and BofA Securities, Inc., Citigroup Global Markets Inc. and J.P. Morgan Securities LLC, as representatives of the several underwriters named in Schedule A thereto.

Exhibit 1.1 Execution Version HUNTSMAN INTERNATIONAL LLC (a Delaware limited liability company) $350,000,000 5.700% Senior Notes due 2034 UNDERWRITING AGREEMENT Dated: September 24, 2024 HUNTSMAN INTERNATIONAL LLC (a Delaware limited liability company) $350,000,000 5.700% Senior Notes due 2034 UNDERWRITING AGREEMENT September 24, 2024 BofA Securities, Inc. One Bryant Park New York, New York 10036

September 26, 2024 EX-4.1

Indenture, dated as of September 26, 2024, by and between Huntsman International LLC and U.S. Bank Trust Company, National Association, as trustee.

Exhibit 4.1   HUNTSMAN INTERNATIONAL LLC   INDENTURE   Dated as of September 26, 2024   U.S. Bank Trust Company, National Association   Trustee         Reconciliation and tie between Trust Indenture Act of 1939 and certain sections of this Indenture   Trust Indenture Act Section   Indenture Section §310 (a)   11.04(a), 16.02   (b)   11.01(f), 11.04(b), 11.05(1), 16.02   (b)(1)   11.04(b), 16.02 §3

August 9, 2024 EX-FILING FEES

Filing Fee Table**

Calculation of Filing Fee Tables S-3 Huntsman CORP 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 Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Other Guarantees of Debt Securities of Huntsman International LLC 457(r) 0.

August 9, 2024 S-3ASR

As filed with the Securities and Exchange Commission on August 9, 2024

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 9, 2024 Registration No.

August 9, 2024 EX-4.1

Form of Indenture**

Exhibit 4.1 HUNTSMAN INTERNATIONAL LLC INDENTURE Dated as of [TRUSTEE] Trustee Reconciliation and tie between Trust Indenture Act of 1939 and certain sections of this Indenture Trust Indenture Act Section Indenture Section §310 (a) 11.04(a), 16.02 (b) 11.01(f), 11.04(b), 11.05(1), 16.02 (b)(1) 11.04(b), 16.02 §311 11.01(f), 16.02 §312 14.02(d), 16.02 (b) 11.10, 16.02 (c) 11.10, 16.02 §313 (a) 10.0

August 6, 2024 10-Q

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, 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 Exa

August 5, 2024 EX-99.1

Huntsman Announces Second Quarter 2024 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: August 5, 2024 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces Second Quarter 2024 Earnings Second Quarter Highlights · Second quarter 2024 net income attributable to Huntsman of $22 million compared to net income of $19 million in the prior year period; second quart

August 5, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 5, 2024 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 7, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 2, 2024 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 3, 2024 10-Q

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, 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 Ex

May 2, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 2, 2024 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 2, 2024 EX-99.1

Huntsman Announces First Quarter 2024 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: May 2, 2024 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces First Quarter 2024 Earnings First Quarter Highlights · First quarter 2024 net loss attributable to Huntsman of $37 million compared to a net income of $153 million in the prior year period; first quarter 202

March 22, 2024 DEF 14A

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

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Rul

March 22, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ¨ Defin

February 22, 2024 10-K

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

Table of Contents 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 Commission File Number Exact Name of Registrant as Specified in

February 22, 2024 EX-97

Huntsman Corporation Clawback Policy

Exhibit 97 HUNTSMAN CORPORATION CLAWBACK POLICY PURPOSE Huntsman Corporation (the “Company”) believes that it is in the best interests of the Company and its shareholders to create and maintain a culture that emphasizes integrity and accountability and that reinforces the Company’s pay-for-performance compensation philosophy.

February 22, 2024 EX-10.44

Further Amended and Restated European Receivables Loan Agreement, dated as of January 31, 2024

Exhibit 10.44 Execution Version INITIALLY DATED AS OF OCTOBER 16, 2009 AS AMENDED AND RESTATED AS OF APRIL 21, 2017, ON APRIL 18, 2019 ON JULY 1, 2021 AND AS FURTHER AMENDED AND RESTATED AS 31 January , 2024 HUNTSMAN RECEIVABLES FINANCE LLC, as the Company VANTICO GROUP S.À R.L., as Master Servicer THE SEVERAL ENTITIES PARTY HERETO AS LENDERS, THE SEVERAL FINANCIAL INSTITUTIONS PARTY HERETO AS FUN

February 22, 2024 EX-10.43

Master Amendment No. 11 to U.S. Receivables Loan Agreement, U.S. Servicing Agreement, U.S. Receivables Purchase Agreement and Transaction Documents, dated as of January 22, 2024

Exhibit 10.43 AMENDMENT NO. 11 TO THE U.S. RECEIVABLES LOAN AGREEMENT This AMENDMENT NO. 11 TO THE U.S. RECEIVABLES LOAN AGREEMENT, dated as of January 22, 2024 (this “Amendment”), is made among Huntsman Receivables Finance II LLC (the “Company”), a Delaware limited liability company, Vantico Group S.à r.l., a private limited liability company (société à responsabilité limitée) incorporated under

February 22, 2024 EX-21.1

Subsidiaries of Huntsman Corporation

Exhibit 21.1 SUBSIDIARIES OF HUNTSMAN CORPORATION Company JURISDICTION Huntsman Argentina S.R.L. Argentina Huntsman Chemical Company Australia Pty Limited Australia Huntsman Polyurethanes (Australia) Pty Limited Australia Huntsman Advanced Materials (Austria) GmbH Austria Production-trade unitary enterprise Huntsman-NMG Belarus Huntsman Advanced Materials (Europe) BV Belgium Huntsman (Belgium) BV

February 21, 2024 EX-99.1

Huntsman Announces Fourth Quarter 2023 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: February 21, 2024 Kevin Gundersen Ivan Marcuse The Woodlands, TX (281) 719-4627 (281) 719-4637 NYSE: HUN Huntsman Announces Fourth Quarter 2023 Earnings Fourth Quarter Highlights · Fourth quarter 2023 net loss attributable to Huntsman of $71 million compared to a net loss of $91 million in the prior year period; fourth quar

February 21, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 13, 2024 SC 13G/A

HUN / Huntsman Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01150-huntsmancorp.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: Huntsman Corp Title of Class of Securities: Common Stock CUSIP Number: 447011107 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the ru

February 9, 2024 SC 13G

HUN / Huntsman Corporation / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Huntsman Corp (Name of Issuer) Common Stock (Title of Class of Securities) 447011107 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

November 1, 2023 10-Q

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

October 31, 2023 EX-99.1

Huntsman Announces Third Quarter 2023 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: October 31, 2023 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Third Quarter 2023 Earnings Third Quarter Highlights · Third quarter 2023 net income attributable to Huntsman of $0 million compared to $100 million in the prior year period; third quarter 2023 diluted ear

October 31, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 31, 2023 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

August 1, 2023 10-Q

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 Exa

July 31, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 31, 2023 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

July 31, 2023 EX-99.1

Huntsman Announces Second Quarter 2023 Earnings

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Media: Investor Relations: July 31, 2023 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Second Quarter 2023 Earnings Second Quarter Highlights · Second quarter 2023 net income attributable to Huntsman of $19 million compared to $228 million in the prior year period; second quarter 2023 diluted e

May 9, 2023 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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): April 21, 2023 Hu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A Amendment No.

May 5, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 5, 2023 Huntsman Corporation (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 5, 2023 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 5, 2023 EX-99.1

Huntsman Announces First Quarter 2023 Earnings

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: May 5, 2023 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces First Quarter 2023 Earnings First Quarter Highlights • First quarter 2023 net income attributable to Huntsman of $153 million compared to $223 million in the prior year period; first quarter 2023 diluted earnings per share

May 5, 2023 10-Q

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 Ex

April 26, 2023 EX-3.2

Seventh Amended and Restated Bylaws of Huntsman Corporation dated as of April 21, 2023

Exhibit 3.2 SEVENTH AMENDED AND RESTATED BYLAWS OF HUNTSMAN CORPORATION Dated as of April 21, 2023 TABLE OF CONTENTS Page ARTICLE I OFFICES AND RECORDS 1 ARTICLE II STOCKHOLDERS 1 Section 2.1. Annual Meeting 1 Section 2.2. Special Meeting 1 Section 2.3. Place of Meeting 3 Section 2.4. Fixing Record Dates 3 Section 2.5. Notice of Meeting 4 Section 2.6. Quorum and Adjournment; Voting 4 Section 2.7.

April 26, 2023 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 21, 2023 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

April 26, 2023 EX-3.1

Amended and Restated Certificate of Incorporation of Huntsman Corporation

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF HUNTSMAN CORPORATION The name of the corporation is “Huntsman Corporation” (the “Corporation”). The original certificate of incorporation of the Corporation (the “Original Certificate of Incorporation”) was filed with the Secretary of State of the State of Delaware (the “Secretary of State”) on October 19, 2004. The Original Certific

April 10, 2023 SC 13G/A

HUN / Huntsman Corp / 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: Huntsman Corp. Title of Class of Securities: Common Stock CUSIP Number: 447011107 Date of Event Which Requires Filing of this Statement: March 31, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1

April 3, 2023 PX14A6G

Huntsman Corporation (HUN)

Huntsman Corporation (HUN) Shareholder Alert Voluntary submission by John Chevedden, POB 2673, Redondo Beach, CA 90278 Huntsman shareholder since 2015 Limit Liability of Huntsman Officers? Proposal 5 The first sign that Proposal 5 is not a good idea is that Huntsman fails to publish this title on the ballot.

March 21, 2023 DEF 14A

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

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Rul

March 10, 2023 PRE 14A

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

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Rul

February 21, 2023 EX-99.1

Huntsman Announces Fourth Quarter 2022 Earnings; Approximately $1.2 Billion in Buybacks and Dividends in 2022; Huntsman Board Approves 12% Dividend Increase

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: February 21, 2023 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Fourth Quarter 2022 Earnings; Approximately $1.2 Billion in Buybacks and Dividends in 2022; Huntsman Board Approves 12% Dividend Increase Fourth Quarter and Recent Highlights • Fourth quarter 2022 net loss of $91 mill

February 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2023 Huntsman Corporat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2023 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 21, 2023 10-K

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

Table of Contents 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 Commission File Number Exact Name of Registrant as Specified in

February 21, 2023 EX-21.1

Subsidiaries of Huntsman Corporation

Exhibit 21.1 SUBSIDIARIES OF HUNTSMAN CORPORATION Company JURISDICTION Huntsman (Argentina) S.R.L. Argentina Huntsman Chemical Company Australia Pty Limited Australia Huntsman Polyurethanes (Australia) Pty Limited Australia Huntsman Advanced Materials (Austria) GmbH Austria Huntsman Bangladesh Pte Limited Bangladesh Production-trade unitary enterprise Huntsman-NMG Belarus Huntsman Advanced Materia

February 9, 2023 SC 13G/A

HUN / Huntsman Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01114-huntsmancorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Huntsman Corp. Title of Class of Securities: Common Stock CUSIP Number: 447011107 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the ru

November 4, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 4, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

November 4, 2022 10-Q

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

Table of Contents ?UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

November 4, 2022 EX-99.1

Huntsman Announces Third Quarter 2022 Earnings; Repurchased over $750 million of Shares in First Nine Months of 2022

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: November 4, 2022 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Third Quarter 2022 Earnings; Repurchased over $750 million of Shares in First Nine Months of 2022 Third Quarter Highlights ? Third quarter 2022 net income of $115 million compared to net income of $225 million in the p

August 9, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 9, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.

August 9, 2022 EX-2.1

9, 2022, by and among Huntsman, Archroma, Archroma Germany and solely for purposes set forth in the Purchase Agreement, the Archroma Financing Party.

Exhibit 2.1 Execution Version EQUITY AND ASSET PURCHASE AGREEMENT by and between HUNTSMAN INTERNATIONAL LLC, ARCHROMA OPERATIONS S.? R.L. ARCHROMA GERMANY GMBH and SOLELY FOR PURPOSES OF SECTION 6.8, SECTION 6.10 AND SECTION 7.11, SKES INVESTMENT 2 S.? R.L. August 9, 2022 TABLE OF CONTENTS Article 1 DEFINITIONS AND TERMS 1 Section 1.1 Definitions 1 Section 1.2 Index of Defined Terms 18 Section 1.3

August 2, 2022 EX-99.1

Huntsman Announces Second Quarter 2022 Earnings; $501 million of Buybacks in First Half of 2022

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: August 2, 2022 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Second Quarter 2022 Earnings; $501 million of Buybacks in First Half of 2022 Second Quarter Highlights ? Second quarter 2022 net income of $242 million compared to net income of $172 million in the prior year period; sec

August 2, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 2, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

August 2, 2022 10-Q

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

Table of Contents ?UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

May 23, 2022 8-K

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): May 20, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction of incorporation) (Commission File

May 23, 2022 EX-10.1

Credit Agreement, dated May 20, 2022, between Huntsman International LLC, Citibank, N.A., as administrative agent, Citibank, N.A., BOFA Securities, Inc., PNC Capital Markets LLC, TD Securities (USA) LLC and Truist Securities, Inc., as Co-Sustainability Structuring Agents, Bank of America, N.A., PNC Bank, National Association, The Toronto Dominion Bank, New York Branch and Truist Bank, as co-syndication agents, and BMO Harris Bank N.A., Industrial and Commercial Bank of China Limited, New York Branch JPMorgan Chase Bank, N.A. and MUFG Bank, Ltd, as co-documentation agents, and the lenders thereto

Exhibit 10.1 Execution Version CREDIT AGREEMENT dated as of May 20, 2022 among HUNTSMAN INTERNATIONAL LLC The Lenders Party Hereto CITIBANK, N.A., as Administrative Agent CITIBANK, N.A., BOFA SECURITIES, INC., PNC CAPITAL MARKETS LLC, TD SECURITIES (USA) LLC and TRUIST SECURITIES, INC., as Co-Sustainability Structuring Agents BANK OF AMERICA, N.A., PNC BANK, NATIONAL ASSOCIATION, THE TORONTO-DOMIN

May 19, 2022 SC 13D/A

HUN / Huntsman Corporation / Starboard Value LP - AMENDMENT NO. 3 TO THE SCHEDULE 13D 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) (Amendment No. 3)1 Huntsman Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 447011107 (CUSIP Number) JEFFREY C. SMITH

April 28, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

April 28, 2022 10-Q

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

Table of Contents ?UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 28, 2022 EX-99.1

Huntsman Announces First Quarter 2022 Earnings; Over $200 million in Share Repurchases During the First Quarter

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: April 28, 2022 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces First Quarter 2022 Earnings; Over $200 million in Share Repurchases During the First Quarter First Quarter Highlights ? First quarter 2022 net income of $240 million compared to net income of $100 million in the prior ye

April 6, 2022 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, par value $0.01 per share, of Huntsman Corporation. This Joint Filing Agree

April 6, 2022 SC 13D/A

HUN / Huntsman Corporation / Starboard Value LP - AMENDMENT NO. 2 TO THE SCHEDULE 13D 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) (Amendment No. 2)1 Huntsman Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 447011107 (CUSIP Number) JEFFREY C. SMITH

March 31, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 25, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

March 25, 2022 DEFA14A

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

DEFA14A 1 tm227868d9defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (a

March 22, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

March 21, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

March 16, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ????) Filed by the Registrant x 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)(2)) ? D

March 15, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

March 15, 2022 PX14A6G

Huntsman Corporation (HUN)

Huntsman Corporation (HUN) Shareholder Alert Voluntary submission by John Chevedden, POB 2673, Redondo Beach, CA 90278 Huntsman Shareholder since 2015 Please vote for Shareholder Proposal 4 to Improve the Shareholder Right to Call a Special Shareholder Meeting Management failed to disclose next to this proposal that currently all shares not held for one continuous year are excluded from calling for a special shareholder meeting.

March 14, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

March 14, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

March 10, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

March 8, 2022 DFAN14A

EXHIBIT 1: INVESTOR PRESENTATION

March 8, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

March 7, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

March 7, 2022 EX-1

Mr. David Stryker, EVP and General Counsel

Exhibit 1 Mr. David Stryker, EVP and General Counsel Huntsman Corporation March 7, 2022 (via email) Dear Mr. Stryker, I wish to advise you that various false and misleading statements have been made in your recent SEC filing regarding my background and experience. I request that such be promptly corrected. While the company is entitled to form its own opinions regarding the value of my relevant ex

March 7, 2022 DEFA14A

EXHIBIT 1: INVESTOR PRESENTATION

March 7, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

March 7, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

March 4, 2022 DFAN14A

EXHIBIT 1 - LETTER TO STOCKHOLDERS

March 4, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

March 2, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

March 2, 2022 DEFA14A

EXHIBIT 1: INVESTOR PRESENTATION

March 2, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

March 1, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

March 1, 2022 DFAN14A

EXHIBIT 1: INVESTOR PRESENTATION

March 1, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

February 28, 2022 DEFA14A

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

DEFA14A 1 tm227868d1defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (a

February 25, 2022 DFRN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confid

February 17, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

February 17, 2022 DFAN14A

LETTER TO THE ISSUER

February 17, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

February 17, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

February 17, 2022 DEFC14A

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

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 R

February 15, 2022 EX-21.1

Subsidiaries of Huntsman Corporation

Exhibit 21.1 SUBSIDIARIES OF HUNTSMAN CORPORATION Company JURISDICTION Huntsman (Argentina) S.R.L. Argentina HCPH Holdings Pty Limited Australia Huntsman Chemical Australia Holdings Pty Limited Australia Huntsman Chemical Australia Unit Trust Australia Huntsman Chemical Company Australia (Holdings) Pty Ltd. Australia Huntsman Chemical Company Australia Pty Limited Australia Huntsman Polyurethanes

February 15, 2022 EX-99.1

Huntsman Announces Fourth Quarter and Full Year 2021 Earnings; Fourth Quarter Buybacks of over $100 million and Dividend Increased 13%

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: February 15, 2022 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Fourth Quarter and Full Year 2021 Earnings; Fourth Quarter Buybacks of over $100 million and Dividend Increased 13% Fourth Quarter Highlights ? Fourth quarter 2021 net income of $607 million compared to net income of

February 15, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 15, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

February 15, 2022 10-K

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

Table of Contents 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 Commission File Number Exact Name of Registrant as Specified in

February 11, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Information Required in Proxy Statement Schedule 14a Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Information Required in Proxy Statement 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 ? Confide

February 10, 2022 DFAN14A

LETTER TO STOCKHOLDERS

February 10, 2022 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of

February 10, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Information Required in Proxy Statement Schedule 14a Information Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Information Required in Proxy Statement 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 ? Confide

February 10, 2022 SC 13G/A

HUN / Huntsman 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.: 8)* Name of issuer: Huntsman Corp. Title of Class of Securities: Common Stock CUSIP Number: 447011107 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

February 3, 2022 PRRN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confid

February 1, 2022 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: x Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

February 1, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ? Defin

January 20, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

January 20, 2022 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

January 13, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

January 12, 2022 DFAN14A

EXHIBIT 1 - LETTER TO CEO AND CHAIRMAN OF THE BOARD, DATED JANUARY 12, 2022

January 12, 2022 EX-99.5

EX-99.5

Exhibit 99.5 POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints Jeffrey C. Smith and Peter A. Feld, or either of them, the undersigned?s true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned?s beneficial ownership of, or participation in a group with respect to, securities of Huntsman Corporation (the ?Com

January 12, 2022 EX-99.1

Huntsman Appoints David Sewell to Board of Directors Longtime Director Wayne Reaud to Retire from the Board Eight New Independent Directors Have Been Appointed Since 2018

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: January 11, 2022 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Appoints David Sewell to Board of Directors Longtime Director Wayne Reaud to Retire from the Board Eight New Independent Directors Have Been Appointed Since 2018 THE WOODLANDS, Texas, January 11, 2022 - Huntsman Corporation (NYS

January 12, 2022 EX-99.3

STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD c/o Starboard Value LP 777 Third Avenue, 18th Floor New York, New York 10017

Exhibit 99.3 STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD c/o Starboard Value LP 777 Third Avenue, 18th Floor New York, New York 10017 January , 2022 Re: Huntsman Corporation Dear : Thank you for agreeing to serve as a nominee for election to the Board of Directors of Huntsman Corporation (the ?Company?) in connection with the proxy solicitation that Starboard Value and Opportunity Master Fund

January 12, 2022 SC 13D/A

HUN / Huntsman Corporation / Starboard Value LP - AMENDMENT NO. 1 TO THE SCHEDULE 13D 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) (Amendment No. 1)1 Huntsman Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 447011107 (CUSIP Number) JEFFREY C. SMITH

January 12, 2022 EX-99.2

JOINT FILING AND SOLICITATION AGREEMENT

Exhibit 99.2 JOINT FILING AND SOLICITATION AGREEMENT WHEREAS, certain of the undersigned are stockholders, direct or beneficial, of Huntsman Corporation, a Delaware corporation (the ?Company?); WHEREAS, Starboard Value and Opportunity Master Fund Ltd, a Cayman Islands exempted company (?Starboard V&O Fund?), Starboard Value and Opportunity S LLC, a Delaware limited liability company (?Starboard S

January 12, 2022 DFAN14A

EX 1 - AMENDMENT NO. 1 TO THE SCHEDULE 13D

January 12, 2022 SC 13D/A

HUN / Huntsman Corporation / Starboard Value LP - EXHIBIT 99.1 - LETTER TO CEO AND CHAIRMAN OF THE BOARD, DATED JANUARY 12, 2022 Activist Investment

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January 12, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

January 12, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 7, 2022 Huntsman Corporatio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 7, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

January 12, 2022 EX-99.4

STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD c/o Starboard Value LP 777 Third Avenue, 18th Floor New York, New York 10017

Exhibit 99.4 STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD c/o Starboard Value LP 777 Third Avenue, 18th Floor New York, New York 10017 January , 2022 Dear : This letter sets forth our mutual agreement with respect to compensation to be paid to you for your agreement to be named and serve as a nominee of a group of investors (the ?Starboard Group?), including Starboard Value and Opportunity Mast

January 12, 2022 8-K

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, DC 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 7, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

January 12, 2022 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT 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 ? Confide

January 7, 2022 CORRESP

January 7, 2022

January 7, 2022 Philip M. Lister Executive Vice President and Chief Financial Officer Via EDGAR Transmission Office of Life Sciences United States Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attn: Sasha Parikh and Kevin Vaughn Re: Huntsman Corporation Form 10-K for the Fiscal Year Ended December 31, 2020 Filed February 12, 2021 File

January 3, 2022 EX-99.1

Huntsman Appoints Two New Independent Directors and Announces Governance Changes as Part of Ongoing Board Refreshment Appoints Curtis E. Espeland and José Muñoz to the Board Names Cynthia L. Egan New Lead Independent Director, Non-Executive Vice Chai

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: January 2, 2022 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Appoints Two New Independent Directors and Announces Governance Changes as Part of Ongoing Board Refreshment Appoints Curtis E. Espeland and Jos? Mu?oz to the Board Names Cynthia L. Egan New Lead Independent Director, Non-Executi

January 3, 2022 8-K

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, Shareholder Director Nominations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 1, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

January 3, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 1, 2022 Huntsman Corporatio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 1, 2022 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

December 28, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 28, 2021 Huntsman Corporat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 28, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

December 28, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 28, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

December 28, 2021 EX-99.1

Press Release dated December 28, 2021.

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: December 28, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Review of Strategic Options for Textile Effects and Compensation Plan Aligned with Financial Targets THE WOODLANDS, Texas, Dec. 28, 2021 - Huntsman Corporation (NYSE: HUN) today announced two significant corporate ini

December 28, 2021 EX-99.1

Huntsman Announces Review of Strategic Options for Textile Effects and Compensation Plan Aligned with Financial Targets

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: December 28, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Review of Strategic Options for Textile Effects and Compensation Plan Aligned with Financial Targets THE WOODLANDS, Texas, Dec. 28, 2021 - Huntsman Corporation (NYSE: HUN) today announced two significant corporate ini

November 9, 2021 EX-99.1

1 Huntsman Investor Day November 9, 2021 2 General Disclosure Forward-Looking Statements This presentation includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchang

Exhibit 99.1 1 Huntsman Investor Day November 9, 2021 2 General Disclosure Forward-Looking Statements This presentation includes ?forward-looking statements? within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These forward-looking statements include statements concerning our plans, objectives, goals, strategies, future events, fu

November 9, 2021 EX-99.2

Huntsman Highlights Growth Strategy and Financial Targets at Investor Day

Exhibit 99.2 FOR IMMEDIATE RELEASE Media: Investor Relations: November 9, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Highlights Growth Strategy and Financial Targets at Investor Day THE WOODLANDS, TX ? Huntsman Corporation (NYSE: HUN) is hosting its Investor Day today at the New York Stock Exchange and will be providing an in-depth overview of

November 9, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

October 29, 2021 EX-10.3

Independent Services Agreement No. ISA-SD-2021 (Sean Douglas)

Exhibit 10.3 Independent Services Agreement No. ISA-SD-2021 August 1, 2021 Page 1 INDEPENDENT SERVICES AGREEMENT NO. ISA-SD-2021 August 1, 2021 Sean Douglas *** *** Dear Mr. Douglas: This letter will confirm our agreement (this ?Agreement?) for Sean Douglas (?Contractor?) to provide to Huntsman International LLC, a Delaware limited liability company, for and on behalf of its affiliates (?Huntsman?

October 29, 2021 10-Q

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

Table of Contents ?UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

October 29, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 29, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

October 29, 2021 EX-99.1

Huntsman Announces Improved Third Quarter 2021 Earnings; Repurchases Approximately $102 million of Shares During the Quarter; Wins Significant Arbitration Award Against Albemarle

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: October 29, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Improved Third Quarter 2021 Earnings; Repurchases Approximately $102 million of Shares During the Quarter; Wins Significant Arbitration Award Against Albemarle Third Quarter Highlights ? Third quarter 2021 net income o

September 27, 2021 EX-99.2

POWER OF ATTORNEY

Exhibit 99.2 POWER OF ATTORNEY The undersigned hereby appoints Jeffrey C. Smith, Peter A. Feld and Kenneth R. Marlin, or any of them, his true and lawful attorney-in fact and agent to execute and file with the Securities and Exchange Commission any Schedule 13D, Schedule 13G, Form 3, Form 4, Form 5, any settlement agreement, any amendments to any of the foregoing and any related documentation whic

September 27, 2021 SC 13D

HUN / Huntsman Corporation / Starboard Value LP - THE SCHEDULE 13D 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) (Amendment No. )1 Huntsman Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 447011107 (CUSIP Number) JEFFREY C. SMITH S

September 27, 2021 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, par value $0.01 per share, of Huntsman Corporation. This Joint Filing Agree

August 10, 2021 SC 13G/A

HUN / Huntsman Corporation / Capital World Investors - 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. 1 )* Huntsman Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 447011107 (CUSIP Number) July 30, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

July 30, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 30, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

July 30, 2021 EX-10.1

Master Amendment No. 10 to U.S. Receivables Loan Agreement, U.S. Servicing Agreement, U.S. Receivables Purchase Agreement and Transaction Documents, dated as of July 1, 2021

Exhibit 10.1 MASTER AMENDMENT NO. 10 TO THE U.S. RECEIVABLES LOAN AGREEMENT, U.S. SERVICING AGREEMENT, U.S. RECEIVABLES PURCHASE AGREEMENT AND TRANSACTION DOCUMENTS This MASTER AMENDMENT NO. 10 TO THE U.S. RECEIVABLES LOAN AGREEMENT, U.S. RECEIVABLES PURCHASE AGREEMENT, U.S. SERVICING AGREEMENT AND TRANSACTION DOCUMENTS, dated as of July 1, 2021 (this ?Amendment?), is made among Huntsman Receivabl

July 30, 2021 EX-10.2

Amended and Restated European Receivables Loan Agreement, dated as of July 1, 2021

Exhibit 10.2 Execution Version INITIALLY DATED AS OF OCTOBER 16, 2009 AS AMENDED AND RESTATED AS OF APRIL 21, 2017, AS FURTHER AMENDED AND RESTATED AS OF APRIL 18, 2019, AND AS FURTHER AMENDED AND RESTATED AS OF JULY 1, 2021 HUNTSMAN RECEIVABLES FINANCE LLC, as the Company VANTICO GROUP S.? R.L., as Master Servicer THE SEVERAL ENTITIES PARTY HERETO AS LENDERS, THE SEVERAL FINANCIAL INSTITUTIONS PA

July 30, 2021 EX-99.1

Huntsman Announces Strong Second Quarter 2021 Earnings

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: July 30, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Strong Second Quarter 2021 Earnings Second Quarter Highlights ? Second quarter 2021 net income of $172 million compared to net loss of $59 million in the prior year period; second quarter 2021 diluted earnings per share o

July 30, 2021 10-Q

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

Table of Contents ?UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 8, 2021 8-K

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, DC 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 4, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.

June 8, 2021 EX-99.1

Huntsman Announces Appointment of Phil Lister as CFO

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: June 04, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Appointment of Phil Lister as CFO THE WOODLANDS, TX ? Huntsman Corporation (NYSE: HUN) today announced the appointment of Phil Lister as Executive Vice President and Chief Financial Officer, effective July 1, 2021. He wil

May 26, 2021 8-K

Entry into a Material Definitive Agreement, 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): May 24, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or Other Jurisdiction of Incorporation) (Commission File

May 26, 2021 EX-1.1

Underwriting Agreement, dated as of May 24, 2021, among Huntsman International LLC and Citigroup Global Markets Inc. and BofA Securities, Inc., as representatives of the several underwriters named in Schedule A thereto.

Exhibit 1.1 EXECUTION VERSION HUNTSMAN INTERNATIONAL LLC (a Delaware limited liability company) $400,000,000 2.950% Senior Notes due 2031 UNDERWRITING AGREEMENT Dated: May 24, 2021 HUNTSMAN INTERNATIONAL LLC (a Delaware limited liability company) $400,000,000 2.950% Senior Notes due 2031 UNDERWRITING AGREEMENT May 24, 2021 Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013

May 26, 2021 EX-4.2

Second Supplemental Indenture, dated as of May 26, 2021, by and between Huntsman International LLC and Wilmington Trust, National Association, as trustee.

Exhibit 4.2 EXECUTION VERSION HUNTSMAN INTERNATIONAL LLC and WILMINGTON TRUST, NATIONAL ASSOCIATION as Trustee SECOND SUPPLEMENTAL INDENTURE Dated as of May 26, 2021 2.950% Senior Notes due 2031 TABLE OF CONTENTS Page Article 1 DEFINITIONS AND RELATION TO BASE INDENTURE 1 Section 1.01 Definitions 1 Section 1.02 Supplemental Indenture 10 Article 2 FORMS OF SECURITIES 10 Section 2.01 The Notes 10 Se

April 30, 2021 EX-99.1

Huntsman Announces First Quarter 2021 Earnings; Recovery Drives Significant Growth in the Quarter; Board Approved a 15% Dividend Increase

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: April 30, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces First Quarter 2021 Earnings; Recovery Drives Significant Growth in the Quarter; Board Approved a 15% Dividend Increase First Quarter Highlights · First quarter 2021 net income of $100 million compared to net income of $7

April 30, 2021 10-Q

Quarterly Report - FORM 10-Q

Table of Contents ?UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 30, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 30, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

April 29, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 23, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.

April 29, 2021 EX-99.1

Huntsman Announces a 15% Increase in Second Quarter 2021 Common Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: April 28, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces a 15% Increase in Second Quarter 2021 Common Dividend THE WOODLANDS, TX ? Huntsman Corporation (NYSE: HUN) today announced that its board of directors declared a $0.1875 per share cash dividend on its common stock. This

April 5, 2021 8-K

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, DC 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, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.

April 5, 2021 EX-99.1

Huntsman Announces Resignation of CFO Sean Douglas

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: April 5, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Resignation of CFO Sean Douglas THE WOODLANDS, TX ? Huntsman Corporation (NYSE: HUN) announced today that Sean Douglas, 56, has notified the Company he intends to resign as Executive Vice President and Chief Financial Off

March 18, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

March 18, 2021 DEF 14A

Company’s Definitive Proxy Statement filed with the Securities and Exchange Commission (the “SEC”) on March 18, 2021

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 22, 2021 EX-99.1

Huntsman Appoints Jeanne McGovern to Its Board of Directors and Announces the Formation of a Sustainability Committee

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: February 19, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Appoints Jeanne McGovern to Its Board of Directors and Announces the Formation of a Sustainability Committee Huntsman Corporation (NYSE: HUN) today announced the appointment of Jeanne McGovern to its Board of Directors effectiv

February 22, 2021 8-K

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, DC 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, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 12, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 12, 2021 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 12, 2021 EX-21.1

Subsidiaries of Huntsman Corporation

Exhibit 21.1 SUBSIDIARIES OF HUNTSMAN CORPORATION Company JURISDICTION Huntsman (Argentina) S.R.L. Argentina HCPH Holdings Pty Limited Australia Huntsman Chemical Australia Holdings Pty Limited Australia Huntsman Chemical Australia Property Trust Australia Huntsman Chemical Australia Unit Trust Australia Huntsman Chemical Company Australia (Holdings) Pty Ltd. Australia Huntsman Chemical Company Au

February 12, 2021 EX-99.1

Huntsman Announces Fourth Quarter and Full Year 2020 Earnings; Strong Recovery with Solid Cash Flow

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: February 12, 2021 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Fourth Quarter and Full Year 2020 Earnings; Strong Recovery with Solid Cash Flow Fourth Quarter Highlights ? Fourth quarter 2020 net income of $360 million compared to net income of $308 million in the prior year peri

February 12, 2021 EX-3.2

Sixth Amended and Restated Bylaws of Huntsman Corporation dated as of June 16, 2020 (as amended by Amendment to Sixth Amended and Restated Bylaws of Huntsman Corporation, effective as of October 28, 2020)

Exhibit 3.2 SIXTH AMENDED AND RESTATED BYLAWS OF HUNTSMAN CORPORATION Dated as of June 16, 2020 (as amended by Amendment to Sixth Amended and Restated Bylaws of Huntsman Corporation, effective as of October 28, 2020) TABLE OF CONTENTS Page ARTICLE I OFFICES AND RECORDS 1 ARTICLE II STOCKHOLDERS 1 Section 2.1. Annual Meeting 1 Section 2.2. Special Meeting 1 Section 2.3. Place of Meeting 4 Section 2

February 12, 2021 EX-10.41

Amended and Restated European Contribution Agreement, dated as of April 18, 2019

Exhibit 10.41 Execution Version EUROPEAN CONTRIBUTION AGREEMENT between HUNTSMAN INTERNATIONAL LLC, as Contributor and HUNTSMAN RECEIVABLES FINANCE LLC, as the Company Dated as of October 16, 2009 as amended and restated. as of April 18, 2019 TABLE OF CONTENTS 1. DEFINITIONS 5 1.01 Defined Terms 5 1.02 Other Definitional Provisions 5 2. CONTRIBUTION OF RECEIVABLES 7 2.01 Contribution of Receivable

February 12, 2021 10-K

Annual Report - FORM 10-K

Table of Contents 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, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number Exact Name of Registrant as Specified in

February 12, 2021 EX-10.45

Master Amendment No. 9 to the U.S. Receivables Loan Agreement, U.S. Servicing Agreement, U.S. Receivables Purchase Agreement and Transaction Documents and Waiver, dated as of October 30, 2020

Exhibit 10.45 MASTER AMENDMENT NO. 9 TO THE U.S. RECEIVABLES LOAN AGREEMENT, U.S. SERVICING AGREEMENT, U.S. RECEIVABLES PURCHASE AGREEMENT AND TRANSACTION DOCUMENTS AND WAIVER This Master Amendment No. 9 to the U.S. RECEIVABLES LOAN AGREEMENT, U.S. RECEIVABLES PURCHASE AGREEMENT, U.S. SERVICING AGREEMENT AND TRANSACTION DOCUMENTS AND WAIVER, dated as of October 30, 2020 (this ?Amendment?), is made

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Huntsman Corp. Title of Class of Securities: Common Stock CUSIP Number: 447011107 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

February 1, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Venator Materials PLC (Name of Issuer) Ordinary Shares, par value $0.001 per share (Title of Class of Se

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Venator Materials PLC (Name of Issuer) Ordinary Shares, par value $0.001 per share (Title of Class of Securities) G9329Z100 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate th

January 8, 2021 SC 13G

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Huntsman Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 447011107 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

November 24, 2020 SC 13D/A

HUN / Huntsman Corp. / Huntsman Foundation - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 Huntsman Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 447011 10 7 (CUSIP Number) Ronald G. Moffitt, 201 South Main Street, Suite 1100, Salt Lake City, Utah 84111, (801) 328-3131 (Name, Address and Telephone Number of

October 29, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents ` UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

October 29, 2020 EX-3.2

Amendment to Sixth Amended and Restated Bylaws of Huntsman Corporation, effective as of October 28, 2020.

Exhibit 3.2 AMENDMENT TO SIXTH AMENDED AND RESTATED BYLAWS OF HUNTSMAN CORPORATION EFFECTIVE AS OF OCTOBER 28, 2020 WHEREAS, the Sixth Amended and Restated Bylaws (the “Bylaws”) of Huntsman Corporation (the “Corporation”) established the rules and procedures affecting the governance of the Corporation; WHEREAS, the board of directors of the Corporation (the “Board”) has determined that it is in th

October 29, 2020 EX-99.1

Huntsman Announces Third Quarter 2020 Earnings; Solid Recovery Trends in Core Markets

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: October 29, 2020 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Third Quarter 2020 Earnings; Solid Recovery Trends in Core Markets Third Quarter Highlights · Third quarter 2020 net income of $57 million compared to net income of $41 million in the prior year period; third quarter 2

October 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 29, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

October 29, 2020 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 28, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

July 28, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

July 28, 2020 EX-99.1

Huntsman Announces Second Quarter 2020 Earnings; Targets Total Annualized Cost Savings and Synergies of $100+ Million by End of 2021

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: July 28, 2020 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Second Quarter 2020 Earnings; Targets Total Annualized Cost Savings and Synergies of $100+ Million by End of 2021 Second Quarter Highlights · Second quarter 2020 net loss of $59 million compared to net income of $118 mill

July 28, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents ` UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

June 19, 2020 EX-99.1

Huntsman Appoints Two Directors to its Board of Directors: Ms. Cynthia L. Egan and Ms. Sonia Dulá

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: June 16, 2020 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Appoints Two Directors to its Board of Directors: Ms. Cynthia L. Egan and Ms. Sonia Dulá THE WOODLANDS, TX – Huntsman Corporation (NYSE: HUN) today announced the appointment of Ms. Cynthia L. Egan and Ms. Sonia Dulá to its Board of

June 19, 2020 EX-3.1

Sixth Amended and Restated Bylaws of Huntsman Corporation, dated as of June 16, 2020.

Exhibit 3.1 SIXTH AMENDED AND RESTATED BYLAWS OF HUNTSMAN CORPORATION Dated as of June 16, 2020 TABLE OF CONTENTS Page ARTICLE I OFFICES AND RECORDS 1 ARTICLE II STOCKHOLDERS 1 Section 2.1. Annual Meeting 1 Section 2.2. Special Meeting 1 Section 2.3. Place of Meeting 4 Section 2.4. Fixing Record Dates 5 Section 2.5. Notice of Meeting 5 Section 2.6. Quorum and Adjournment; Voting 5 Section 2.7. Pro

June 19, 2020 8-K

Regulation FD Disclosure, 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, DC 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 16, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 6, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

May 1, 2020 EX-99.1

Huntsman Announces First Quarter 2020 Earnings; A Strong Balance Sheet with Robust Liquidity

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: May 1, 2020 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces First Quarter 2020 Earnings; A Strong Balance Sheet with Robust Liquidity First Quarter Highlights · First quarter 2020 net income of $708 million compared to $131 million in the prior year period; first quarter 2020 dilute

May 1, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents ` UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

May 1, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

April 13, 2020 DEFA14A

HUN / Huntsman Corp. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

April 13, 2020 DEFA14A

HUN / Huntsman Corp. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x 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)(2)) ¨ Defin

March 20, 2020 DEFA14A

HUN / Huntsman Corp. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

March 20, 2020 DEF 14A

Definitive Proxy Statement filed with the Securities and Exchange Commission on March 20, 2020

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 2, 2020 8-K

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): March 2, 2020 Huntsman Corporation (Exact name of registrant as specified in charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorpora

March 2, 2020 EX-99.1

Press Release dated March 2, 2020 announcing the date of the Company’s 2020 annual meeting of stockholders.

Exhibit 99.1 FOR IMMEDIATE RELEASE March 2, 2020 Media: Gary Chapman Investor Relations: Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces 2020 Annual Meeting of Stockholders THE WOODLANDS, Texas – Huntsman Corporation (NYSE: HUN) today announced that it will hold its 2020 annual meeting of stockholders on Wednesday, April 29, 2020 at 8:30 a.m., local time,

March 2, 2020 DEFA14A

HUN / Huntsman Corp. DEFA14A - - DEFA14A

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 2, 2020 Huntsman Corporation (Exact name of registrant as specified in charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorpora

March 2, 2020 EX-99.1

Huntsman Announces 2020 Annual Meeting of Stockholders

Exhibit 99.1 FOR IMMEDIATE RELEASE March 2, 2020 Media: Gary Chapman Investor Relations: Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces 2020 Annual Meeting of Stockholders THE WOODLANDS, Texas – Huntsman Corporation (NYSE: HUN) today announced that it will hold its 2020 annual meeting of stockholders on Wednesday, April 29, 2020 at 8:30 a.m., local time,

February 19, 2020 EX-10.2

Second Amended and Restated Severance Agreement dated February 19, 2020, between Huntsman Corporation and Peter R. Huntsman

Exhibit 10.2 SECOND AMENDED AND RESTATED SEVERANCE AGREEMENT THIS SECOND AMENDED AND RESTATED SEVERANCE AGREEMENT (this “Agreement’) is made and entered into as of the 19th day of February, 2020 (the “Effective Date”) by and between Huntsman Corporation, a Delaware corporation (the “Company”), and Peter R. Huntsman (the “Executive”). WHEREAS, the Company and the Executive originally entered into t

February 19, 2020 8-K

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, DC 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 13, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 19, 2020 EX-10.1

Huntsman Executive Severance Plan (as amended and restated effective February 19, 2020)

Exhibit 10.1 HUNTSMAN EXECUTIVE SEVERANCE PLAN (As Amended and Restated Effective February 19, 2020) Article I The Plan 1.1 Name. The HUNTSMAN EXECUTIVE SEVERANCE PLAN (“Plan”) is hereby amended and restated effective as of February 19, 2020 (the “Effective Date”). The Plan originally became effective as of January 1, 2005, and was amended and restated as of each of the following dates: October 30

February 13, 2020 EX-4.14

Description of Securities

Exhibit 4.14 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 13, 2020, Huntsman Corporation (the “Company”) has its Common Stock, par value $0.01 per share (the “Common Stock”), registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Huntsman International LLC has no secu

February 13, 2020 EX-99.1

Huntsman Announces Full Year 2019 Earnings; Another Year of Strong Cash Flow Generation

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: February 13, 2020 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Full Year 2019 Earnings; Another Year of Strong Cash Flow Generation Full Year 2019 and Fourth Quarter Highlights · 2019 net income of $598 million compared to $650 million in the prior year period; 2019 diluted earni

February 13, 2020 EX-21.1

Subsidiaries of Huntsman Corporation

Exhibit 21.1 SUBSIDIARIES OF HUNTSMAN CORPORATION Company JURISDICTION Huntsman (Argentina) S.R.L. Argentina HCPH Holdings Pty Limited Australia Huntsman Chemical Australia Holdings Pty Limited Australia Huntsman Chemical Australia Property Trust Australia Huntsman Chemical Australia Unit Trust Australia Huntsman Chemical Company Australia (Holdings) Pty Ltd. Australia Huntsman Chemical Company Au

February 13, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 13, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

February 13, 2020 EX-10.52

Master Amendment No. 8 to the U.S. Receivables Loan Agreement, U.S. Servicing Agreement, U.S. Receivables Purchase Agreement and Transaction Documents, dated as of December 3, 2019

Exhibit 10.52 EXECUTION VERSION MASTER AMENDMENT NO. 8 TO THE U.S. RECEIVABLES LOAN AGREEMENT, U.S. SERVICING AGREEMENT, U.S. RECEIVABLES PURCHASE AGREEMENT AND TRANSACTION DOCUMENTS This MASTER AMENDMENT NO. 8 TO THE U.S. RECEIVABLES LOAN AGREEMENT, U.S. RECEIVABLES PURCHASE AGREEMENT, U.S. SERVICING AGREEMENT AND TRANSACTION DOCUMENTS, dated as of December 3, 2019 (this “Amendment”), is made amo

February 13, 2020 10-K

Annual Report - 10-K

Table of Contents 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, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number Exact Name of Registrant as Specified in

February 12, 2020 SC 13G/A

HUN / Huntsman Corp. / 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.: 6)* Name of issuer: Huntsman Corp Title of Class of Securities: Common Stock CUSIP Number: 447011107 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

January 9, 2020 8-K

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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 3, 2020 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or Other Jurisdiction of Incorporation) (Commission Fi

January 9, 2020 EX-99.2

Summary of Unaudited Pro Forma Financial Information

Exhibit 99.2 Summary of Unaudited Pro Forma Financial Information The following unaudited financial information reflects the pro forma condensed consolidated balance sheets as of September 30, 2019 and the pro forma consolidated statements of operations for the years ended December 31, 2018, 2017 and 2016 for each of Huntsman Corporation and Huntsman International LLC (collectively, the “Company”)

January 9, 2020 EX-99.1

Huntsman Completes the Sale of its Chemical Intermediates and Surfactants Businesses to Indorama Ventures for $2 Billion

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: January 5, 2020 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Completes the Sale of its Chemical Intermediates and Surfactants Businesses to Indorama Ventures for $2 Billion THE WOODLANDS, Texas – Huntsman Corporation (NYSE: HUN) announced today it has completed the sale of its chemical int

December 17, 2019 SC 13D/A

HUN / Huntsman Corp. / Huntsman Foundation - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 17) Huntsman Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 447011 10 7 (CUSIP Number) Ronald G. Moffitt, 201 South Main Street, Suite 1100, Salt Lake City, Utah 84111, (801) 328-3131 (Name, Address and

October 25, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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 25, 2019 Huntsman Corporation (Exact name of registrant as specified in its charter) Delaware 001-32427 42-1648585 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.

October 25, 2019 EX-99.1

Huntsman Announces Third Quarter 2019 Earnings; Strong Cash Flow Generation in the Quarter; Divestiture of the Chemical Intermediates and Surfactants Businesses on Track

Exhibit 99.1 FOR IMMEDIATE RELEASE Media: Investor Relations: October 25, 2019 Gary Chapman Ivan Marcuse The Woodlands, TX (281) 719-4324 (281) 719-4637 NYSE: HUN Huntsman Announces Third Quarter 2019 Earnings; Strong Cash Flow Generation in the Quarter; Divestiture of the Chemical Intermediates and Surfactants Businesses on Track Third Quarter Highlights · Third quarter 2019 net income of $41 mil

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