Type	Name	Date
Underwriting agreement	UNDERWRITING AGREEMENT	05/19/2023
Credit agreement	AMENDMENT NO. 3 TO AMENDED AND RESTATED CREDIT AGREEMENT	10/08/2020
Credit agreement	AMENDMENT NO. 2 TO THREE-YEAR CREDIT AGREEMENT	10/08/2020
Credit agreement	Amendment No. 1 to the Three-Year Credit Agreement, among LyondellBasell Industries N.V. as guarantor, and LYB Americas Finance Company LLC, as borrower, and Bank of America, N.A., as administrative agent	04/15/2020
Credit agreement	Three-Year Credit Agreement, among LyondellBasell Industries N.V., as guarantor, and LYB Americas Finance Company LLC, as borrower, the lenders party thereto, and Bank of America, N.A., as administrative agent	03/29/2019
Credit agreement	364-Day Credit Agreement, among LyondellBasell Industries N.V., as guarantor, and LYB Americas Finance Company LLC, as borrower, the lenders party thereto, and Bank of America, N.A., as administrative agent	02/08/2019
Credit agreement	Amendment No. 1 to the Amended and Restated Credit Agreement, among LyondellBasell Industries N.V. and LYB Americas Finance Company, as Borrowers, the Lenders, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, Citibank, N.A. and Deutsche Bank Securities Inc., as Syndication Agents and the other parties thereto	06/06/2016
Indenture	Indenture, among LYB International Finance II B.V., as Issuer, LyondellBasell Industries N.V., as Guarantor, and Deutsche Bank Trust Company Americas, as Trustee	03/02/2016
Indenture	Indenture, between LyondellBasell Industries N.V., as Company and Wells Fargo Bank, National Association, as Trustee	03/05/2015
Credit agreement	Amended and Restated Credit Agreement, among LyondellBasell Industries N.V. and LYB Americas Finance Company, as Borrowers, the Lenders, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, Deutsche Bank Securities Inc., as Syndication Agent and the other parties thereto	06/06/2014
Indenture	Indenture, among LYB International Finance B.V., as Issuer, LyondellBasell Industries N.V., as Guarantor, and Wells Fargo Bank, National Association, as Trustee	07/16/2013
Credit agreement	Credit Agreement, among LyondellBasell Industries N.V. and LYB Americas Finance Company, as Borrowers, the Lenders, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, Deutsche Bank Securities Inc., as Syndication Agent and the other parties thereto	05/07/2012
Registration rights agreement	Registration Rights Agreement, among LyondellBasell Industries N.V., the Guarantors and the Initial Purchasers	04/10/2012
Indenture	Second Supplemental Indenture, by and among Lyondell Chemical Company, LyondellBasell Industries N.V. and Wilmington Trust, National Association, as trustee	04/10/2012
Indenture	Second Supplemental Indenture, by and among Lyondell Chemical Company, LyondellBasell Industries N.V. and Wells Fargo Bank, National Association, as trustee	04/10/2012
Indenture	Indenture, among LyondellBasell Industries N.V., as issuer, each of the Guarantors named therein, as guarantors, Wells Fargo Bank, National Association, as trustee, registrar and paying agent (including form of 5.000% Senior Note due 2019 and form of 5.750% Senior Note due 2024)	04/10/2012
Indenture	Indenture, among the Company, as issuer, each of the Guarantors named therein, as guarantors, Wells Fargo National Association, as trustee, registrar and paying agent (including form of 6.000% Senior Note due 2021)	11/17/2011
Registration rights agreement	Registration Rights Agreement, among the Company, the Guarantors and the Initial Purchasers	11/17/2011
Indenture	First Supplemental Indenture, by and among Lyondell Chemical Company, LyondellBasell Industries N.V., each of the other Guarantors signatory thereto and Wilmington Trust, National Association, as trustee	11/08/2011
Indenture	First Supplemental Indenture, by and among Lyondell Chemical Company, LyondellBasell Industries N.V., each of the other Guarantors signatory thereto and Wells Fargo Bank, National Association, as trustee	11/08/2011

Type	Name	Date
Employment agreement	Amendment to Employment Agreement between the Company, Lyondell Chemical Company and Bhavesh V. Patel	03/09/2017
Employment agreement	Amendment to Employment Agreement between the Company, Lyondell Chemical Company and Bhavesh V. Patel	03/09/2017
Equity incentive plans	LyondellBasell Industries 2017 Long Term Incentive Plan	02/23/2017

Type	Name	Date
Merger agreement	Agreement and Plan of Merger, among LyondellBasell Industries N.V., LYB Americas Holdco Inc., and A. Schulman, Inc	02/15/2018

Type	Name	Date
Other	Offer Letter between Mr. Vanacker and LyondellBasell Industries N.V	12/13/2021
Other	Letter Agreement between Thomas Aebischer and Lyondell Chemical Company	11/09/2015
Other	Letter Agreement between Karyn F. Ovelmen and Lyondell Chemical Company	10/11/2011