Item 15. Exhibits, Financial Statement Schedules.

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Item 15. Exhibits, Financial Statement Schedules.

(a) (1) Consolidated Financial Statements*:* The financial statements and supplementary information listed in the Index to Financial Statements, included in Item 8.

(a) (2) Consolidated Financial Statement Schedules*:* Schedules are omitted because they either are not required or are not applicable or because equivalent information has been included in the financial statements, the notes thereto or elsewhere herein.

(b) Exhibits:

Exhibit NumberDescription
3Articles of Association of LyondellBasell Industries N.V., as amended on June 1, 2018 (incorporated by reference to Exhibit 3.1 of our Current Report on Form 8-K filed with the SEC on June 5, 2018)
4.1Description of the Company’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (incorporated by reference to Exhibit 4.1 of our Annual Report on Form 10-K filed with the SEC on February 27, 2025)
4.2Specimen certificate for Class A ordinary shares, par value €0.04 per share, of LyondellBasell Industries N.V. (incorporated by reference to Exhibit 4.1 to our Annual Report on Form 10-K filed with the SEC on February 16, 2016)
4.3Registration Rights Agreement by and among LyondellBasell Industries N.V. and the Holders (as defined therein), dated as of April 30, 2010 (incorporated by reference to Exhibit 4.7 to Amendment No. 2 to Form 10 filed with the SEC on July 26, 2010)
4.4Second Amended and Restated Nomination Agreement, dated June 1, 2018, between AI International Chemicals S.à R.L. and LyondellBasell Industries N.V. (incorporated by reference to Exhibit 10.1 of our Current Report on Form 8-K filed with the SEC on June 5, 2018)
4.5Indenture, between LyondellBasell Industries N.V. as Company and Computershare Trust Company, N.A., as Trustee (as successor to Wells Fargo Bank, National Association), dated as of March 5, 2015 (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed with the SEC on March 5, 2015)
4.6Officer’s Certificate of LyondellBasell Industries, N.V. relating to the 4.625% Senior Notes due 2055, dated as of March 5, 2015 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on March 5, 2015)
4.7Form of LyondellBasell Industries N.V.’s 4.625% Senior Notes due 2055 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on March 5, 2015 and included in Exhibit 4.2 thereto)
4.8Indenture, among LYB International Finance B.V., as issuer, LyondellBasell Industries N.V., as guarantor, and Computershare Trust Company, N.A., as Trustee (as successor to Wells Fargo Bank, National Association), dated as of July 16, 2013 (incorporated by reference to Exhibit 4.1 to our Form 8-K filed with the SEC on July 16, 2013)
4.9Officer’s Certificate of LYB International Finance B.V. relating to the 5.250% Guaranteed Notes due 2043, dated as of July 16, 2013 (incorporated by reference to Exhibit 4.3 to our Form 8-K filed with the SEC on July 16, 2013)

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Exhibit NumberDescription
4.10Form of LYB International Finance B.V.’s 5.250% Guaranteed Notes due 2043 (incorporated by reference to Exhibit 4.3 to our Form 8-K filed with the SEC on July 16, 2013)
4.11Officer’s Certificate of LYB International Finance B.V. relating to the 4.875% Guaranteed Notes due 2044, dated as of February 28, 2014 (incorporated by reference to Exhibit 4.2 to our Form 8-K filed with the SEC on February 28. 2014)
4.12Form of LYB International Finance B.V.’s 4.875% Guaranteed Notes due 2044 (incorporated by reference to Exhibit 4.2 to our Form 8-K filed with the SEC on February 28. 2014)
4.13Indenture, among LYB International Finance II B.V., as Issuer, LyondellBasell Industries N.V., as Guarantor, and Deutsche Bank Trust Company Americas, as Trustee, dated as of March 2, 2016 (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed with the SEC on March 2, 2016)
4.14Officer’s Certificate of LYB International Finance II B.V. relating to the 3.500% Guaranteed Notes due 2027, dated as of March 2, 2017 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on March 2, 2017)
4.15Form of LYB International Finance II B.V.’s 3.500% Guaranteed Notes due 2027 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on March 2, 2017 and included in Exhibit A thereto)
4.16Supplemental Indenture, among LYB International Finance II B.V., as Issuer, LyondellBasell Industries N.V., as Guarantor, and Deutsche Bank Trust Company Americas, as Trustee, dated as of September 17, 2019 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on September 17, 2019)
4.17Form of LYB International Finance II B.V.’s 0.875% Guaranteed Notes due 2026 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on September 17, 2019)
4.18Form of LYB International Finance II B.V.’s 1.625% Guaranteed Notes due 2031 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on September 17, 2019)
4.19Indenture, among LYB International Finance III, LLC, as Issuer, LyondellBasell Industries N.V., as Guarantor, and Computershare Trust Company, N.A., as Trustee (as successor to Wells Fargo Bank, National Association), dated as of October 10, 2019 (incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed with the SEC on October 10, 2019)
4.20Officer’s Certificate of LYB International Finance III, LLC relating to the 4.200% Guaranteed Notes due 2049, dated as of October 10, 2019 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on October 10, 2019)
4.21Form of LYB International Finance III, LLC’s 4.200% Guaranteed Notes due 2049 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on October 10, 2019)
4.22Officer’s Certificate of LYB International Finance III, LLC relating to the 3.375% Guaranteed Notes due 2030, and 4.200% Guaranteed Notes due 2050 dated as of April 20, 2020 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on April 21, 2020)
4.23Form of LYB International Finance III, LLC’s 3.375% Guaranteed Notes due 2030 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on April 21, 2020)
4.24Form of LYB International Finance III, LLC’s 4.200% Guaranteed Notes due 2050 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on April 21, 2020)

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Exhibit NumberDescription
4.25Officer’s Certificate of LYB International Finance III, LLC relating to the 2.250% Guaranteed Notes due 2030, 3.375% Guaranteed Notes due 2040, 3.625% Guaranteed Notes due 2051, and 3.800% Guaranteed Notes due 2060, dated as of October 8, 2020 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on October 8, 2020)
4.26Form of LYB International Finance III, LLC’s 2.250% Guaranteed Notes due 2030 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on October 8, 2020)
4.27Form of LYB International Finance III, LLC’s 3.375% Guaranteed Notes due 2040 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on October 8, 2020)
4.28Form of LYB International Finance III, LLC’s 3.625% Guaranteed Notes due 2051 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on October 8, 2020)
4.29Form of LYB International Finance III, LLC’s 3.800% Guaranteed Notes due 2060 (incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on October 8, 2020)
4.30Supplemental Indenture, among LYB International Finance III, LLC, as Issuer, LyondellBasell Industries N.V., as Guarantor, Computershare Trust Company, N.A., as Base Trustee (as successor to Wells Fargo Bank, National Association) and The Bank of New York Mellon Trust Company, N.A., as Trustee, dated as of May 17, 2023 (incorporated by reference to Exhibit 4.44 to Post-Effective Amendment No. 1 to the Registration Statement on Form S-3 (File No. 333-261639) filed with the SEC on May 17, 2023)
4.31Officer’s Certificate of LYB International Finance III, LLC relating to the 5.625% Guaranteed Notes due 2033, dated as of May 19, 2023 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on May 19, 2023)
4.32Form of LYB International Finance III, LLC’s 5.625% Guaranteed Notes due 2033 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on May 19, 2023)
4.33Officer’s Certificate of LYB International Finance III, LLC relating to the 5.500% Guaranteed Notes due 2034, dated as of February 28, 2024 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on February 28, 2024)
4.34Form of LYB International Finance III, LLC’s 5.500% Guaranteed Notes due 2034 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on February 28, 2024)
4.35Officer’s Certificate of LYB International Finance III, LLC relating to the 6.150% Guaranteed Notes due 2035, dated as of May 15, 2025 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on May 15, 2025)
4.36Form of LYB International Finance III, LLC’s 6.150% Guaranteed Notes due 2035 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on May 15, 2025).
4.37Officer’s Certificate of LYB International Finance III, LLC relating to the 5.125% Guaranteed Notes due 2031 and 5.875% Guaranteed Notes due 2036, dated as of November 13, 2025 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on November 13, 2025).
4.38Form of LYB International Finance III, LLC’s 5.125% Guaranteed Notes due 2031 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on November 13, 2025)
4.39Form of LYB International Finance III, LLC’s 5.875% Guaranteed Notes due 2036 (incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on November 13, 2025)

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Exhibit NumberDescription
10.1+Offer Letter dated December 8, 2021 between Peter Vanacker and LyondellBasell Industries N.V. (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on December 13, 2021)
10.2+Offer Letter dated May 17, 2019 between Torkel Rhenman and Lyondell Chemical Company (incorporated by reference to Exhibit 10.7 of our Annual Report on Form 10-K filed with the SEC on February 20, 2020)
10.3+Letter to Torkel Rhenman dated July 22, 2020 (incorporated by reference to Exhibit 10.5 to our Quarterly Report on Form 10-Q filed with the SEC on October 30, 2020)
10.4+Appointment Letter for Torkel Rhenman dated September 27, 2022 (incorporated by reference to Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on October 28, 2022)
10.5+Appointment Letter dated November 21, 2024 from the Company to Agustin Izquierdo (incorporated by reference to Exhibit 10.2 to our Current Report on Form 8-K filed with the SEC on November 22, 2024)
10.6+LyondellBasell Industries N.V. U.S. Senior Management Deferral Plan, as Amended and Restated as of September 25, 2025 (incorporated by reference to Exhibit 10.2 of our Form 10-Q filed with the SEC on October 31, 2025)
10.7+LyondellBasell Executive Severance Plan, Amended & Restated, effective as of November 17, 2023 (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on November 17, 2023)
10.8+Form of LyondellBasell Executive Severance Plan Participation Agreement (incorporated by reference to Exhibit 10.8 of our Annual Report on Form 10-K filed with the SEC on February 27, 2025)
10.9+Form of Officer and Director Indemnification Agreement (incorporated by reference to Exhibit 10.12 to our Annual Report on Form 10-K filed with the SEC on February 21, 2019)
10.10+LyondellBasell Industries Long Term Incentive Plan (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on May 28, 2021)
10.11+2024 Form of Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.19 of our Annual Report on Form 10-K filed with the SEC on February 22, 2024)
10.12+2024 Form of Performance Share Unit Award Agreement (incorporated by reference to Exhibit 10.20 of our Annual Report on Form 10-K filed with the SEC on February 22, 2024)
10.13+2025 Form of Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.16 of our Annual Report on Form 10-K filed with the SEC on February 27, 2025)
10.14+2025 Form of Performance Share Unit Award Agreement (incorporated by reference to Exhibit 10.17 of our Annual Report on Form 10-K filed with the SEC on February 27, 2025)
10.15+*2026 Form of Restricted Stock Unit Award Agreement
10.16+*2026 Form of Performance Share Unit Award Agreement
10.17+Form of Director Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.1 of our Quarterly Report on Form 10-Q filed with the SEC on July 31, 2020)

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Exhibit NumberDescription
10.18Third Amended and Restated Credit Agreement, dated July 17, 2024, among LyondellBasell Industries N.V. and LYB Americas Finance Company LLC, as Borrowers, the various institutions from time to time party thereto as Lenders and L/C Issuers, Citibank, N.A., as Administrative Agent, and Wells Fargo Bank, National Association, as Syndication Agent (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on July 18, 2024)
10.19Amendment No. 1 to Third Amended and Restated Credit Agreement, dated September 10, 2025, among LyondellBasell Industries N.V. and LYB Americas Finance Company LLC, as Borrowers, the various institutions from time to time party thereto as Lenders and L/C Issuers, Citibank, N.A., as Administrative Agent, and Wells Fargo Bank, National Association, as Syndication Agent. (Incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on September 11, 2025)
10.20Receivables Purchase Agreement, dated September 11, 2012, by and among Lyondell Chemical Company, as initial servicer, and LYB Receivables LLC, as seller, PNC National Association, as Administrator and LC Bank, certain conduit purchasers, committed purchasers, LC participants and purchaser agents that are parties thereto from time to time (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on September 14, 2012)
10.21Second Amendment to Receivables Purchase Agreement, dated August 26, 2015, among Lyondell Chemical Company, as servicer, LYB Receivables LLC, as seller, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10 to our Current Report on Form 8-K filed with the SEC on August 28, 2015)
10.22Third Amendment to Receivables Purchase Agreement, dated July 24, 2018, among Lyondell Chemical Company, as servicer, LYB Receivables LLC, as seller, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on July 27, 2018)
10.23Fourth Amendment to Receivables Purchase Agreement, dated as of June 30, 2021, among Lyondell Chemical Company, as servicer, LYB Receivables LLC, as seller, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on July 2, 2021)
10.24Fifth Amendment to Receivables Purchase Agreement, dated as of May 31, 2023, among LYB Receivables LLC, as seller, Lyondell Chemical Company, as servicer, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on August 4, 2023)
10.25Sixth Amendment to Receivables Purchase Agreement, dated as of May 29, 2024, among Lyondell Chemical Company, as servicer, LYB Receivables LLC, as seller, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on May 30, 2024)
10.26Seventh Amendment to Receivables Purchase Agreement, dated as of May 29, 2025, among Lyondell Chemical Company, as servicer, LYB Receivables LLC, as seller, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on May 30, 2025).
10.27Acknowledgement of Amendment to Receivables Purchase Agreement, dated April 14, 2020, among Lyondell Chemical Company, as servicer, LYB Receivables LLC, as seller, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10.3 of our Current Report on Form 8-K filed with the SEC on April 15, 2020)

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Exhibit NumberDescription
10.28Acknowledgement of Amendment to Receivables Purchase Agreement, dated October 8, 2020, among Lyondell Chemical Company, as servicer, LYB Receivables LLC, as seller, the conduit purchasers, related committed purchasers, LC participants and purchaser agents party thereto, the other parties thereto and Mizuho Bank, Ltd., as Administrator and LC Bank (incorporated by reference to Exhibit 10.3 to our Current Report on Form 8-K filed with the SEC on October 8, 2020)
10.29Purchase and Sale Agreement, dated September 11, 2012, by and among Lyondell Chemical Company, Equistar Chemicals, LP and LyondellBasell Acetyls, LLC, the other originators from time to time parties thereto, Lyondell Chemical Company, as initial servicer and LYB Receivables LLC, as buyer (incorporated by reference to Exhibit 10.2 to our Current Report on Form 8-K filed with the SEC on September 14, 2012)
10.30Put Option Letter Agreement between LyondellBasell Industries Holdings B.V. and AEQ Amethyst B.V. (including the form of Sale and Purchase Agreement as Schedule 1 thereto) (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on June 5, 2025).
10.31Sale and Purchase Agreement dated as of October 29, 2025, between LyondellBasell Industries Holdings B.V. and AEQ Amethyst B.V. (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on October 31, 2025)
19Policy Prohibiting Insider Trading (incorporated by reference to Exhibit 19 of our Annual Report on Form 10-K filed with the SEC on February 27, 2025)
21*List of subsidiaries of the registrant
23*Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm
31.1*Certification of Chief Executive Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934
31.2*Certification of Chief Financial Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934
32**Certifications pursuant to 18 U.S.C. Section 1350
97.1Clawback Policy (incorporated by reference to Exhibit 97.1 to our Annual Report on Form 10-K filed with the SEC on February 22, 2024)
101.INS*Inline XBRL Instance Document
101.SCH*Inline XBRL Schema Document
101.CAL*Inline XBRL Calculation Linkbase Document
101.DEF*Inline XBRL Definition Linkbase Document
101.LAB*Inline XBRL Labels Linkbase Document
101.PRE*Inline XBRL Presentation Linkbase Document
104*Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)
+Management contract or compensatory plan, contract or arrangement.
*Filed herewith.
**Furnished herewith.

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