United States Steel Corporation Watch

from 10-Q 90 pages Allen Overy Shearman Sterling S.R.O. 0040772-0000056 Euo3: 2016419332.2 Supplemental Agreement No. 12 Dated 13 September 2024 Between U. S. Steel Košice, S.R.O. as the Company and Ing Bank N.V., Pobočka Zahraničnej Banky as Lender Relating to the Agreement for the (Originally) €10,000,000 Committed Credit Facility

from 10-Q 90 pages Allen & Overy Bratislava, S.R.O. 0040772-0000056 Euo3: 2014957547.5 Supplemental Agreement No. 11 Dated 3 May 2024 Between U. S. Steel Košice, S.R.O. as the Company and Ing Bank N.V., Pobočka Zahraničnej Banky as Lender Relating to the Agreement for the (Originally) €10,000,000 Committed Credit Facility

from 10-Q 129 pages Allen & Overy Bratislava, S.R.O. 0040772-0000073 Euo1: 2011178815.6 Second Supplemental Agreement Dated 3 May 2024 Between U. S. Steel Košice, S.R.O. and Ing Bank N.V. as Facility Agent Relating to an Up to Eur300,000,000 Credit Agreement Dated 29 September 2021

from 10-Q 165 pages Execution Version Exploratory Ventures, LLC – Credit Agreement Amended and Restated Credit Agreement December ___ , 2022 Among Exploratory Ventures, LLC as Borrower United States Steel Corporation as Parent Guarantor Arranged by Kfw Ipex-Bank Gmbh as Mandated Lead Arranger and Eca Structuring Bank Kfw Ipex-Bank Gmbh as Facility Agent and Eca Agent – And – Lenders Party Hereto From Time to Time 22

from 10-K 125 pages Contents Clause Page 1. Interpretation ......................................................................................................................................... 1 2. Amendments .......................................................................................................................................... 2 3. Representations ..................................................................................................................................... 2 4. Consents ................................................................................................................................................ 3 5. Miscellaneous ........................................................................................................................................ 4 6. Governing Law ....................................................................................................................................... 4 Schedule 1. Conditions Precedent to Effective Date ................................................................................................. 5 2. Amended Credit Agreement .................................................................................................................. 7 Signatories .......................................................................................................................................................... 7

from 10-Q 39 pages 4869-4999-9400.5 Loan Agreement Between Arkansas Development Finance Authority, as Issuer and Each of United States Steel Corporation, as Company and Exploratory Ventures, LLC, as Operating Company Relating to $290,000,000 Arkansas Development Finance Authority Environmental Improvement Revenue Bonds, Series 2022 (United States Steel Corporation Project) (Green Bonds) Dated as of September 1, 2022 the Interest of the Arkansas Development Finance Authority in This Loan Agreement Has Been Assigned (Except for the Unassigned Issuer’s Rights) Pursuant to the Trust Indenture Dated as of the Date Hereof Between the Arkansas Development Finance Authority and the Bank of New York Mellon Trust Company, N.A., as Trustee, and Is Subject to the Security Interest of the Bank of New York Mellon Trust Company, N.A., as Trustee

from 8-K 184 pages Sixth Amended and Restated Credit Agreement Dated as of May 27, 2022 Among United States Steel Corporation the Lenders Party Hereto the Lc Issuing Banks Party Hereto and Jpmorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent Jpmorgan Chase Bank, N.A., Bank of America, N.A., Wells Fargo Bank, National Association, and Barclays Bank PLC, as Joint Lead Arrangers and Joint Bookrunners Bank of America, N.A., Wells Fargo Bank, National Association, and Barclays Bank PLC, as Co-Syndication Agents

from 10-K 103 pages Supplemental Agreement No. 9 Dated 3 December 2021 Between U. S. Steel Košice, S.R.O. as the Company and Ing Bank N.V., Pobočka Zahraničnej Banky as Lender Relating to the Agreement for the (Originally) €10,000,000 Committed Credit Facility Allen & Overy Bratislava, S.R.O. 0040772-0000056 Euo3: 2006316654.2 Contents

from 10-K 223 pages $225,000,000 Abl Credit Agreement Dated as of August 23, 2017 Among Big River Steel LLC, as the Borrower, Brs Intermediate Holdings LLC, as Holdings, Goldman Sachs Bank USA, as Administrative Agent and Collateral Agent, and the Other Lenders Party Hereto Goldman Sachs Bank USA, Bmo Harris Bank, N.A, Wells Fargo Bank, N.A. and Bank of America, N.A., as Joint Lead Arrangers and Joint Bookrunners and Goldman Sachs Bank USA, as Sole Syndication Agent |US-Docs\92093580.13||

from 8-K 153 pages Credit Facility Agreement Dated 29 September 2021 €300,000,000 Unsecured Sustainability Linked Revolving Credit Facility for U. S. Steel Košice, S.R.O. Guaranteed by Ferroenergy S.R.O. Arranged by Ing Bank N.V. Acting Through Ing Bank N.V., Pobočka Zahraničnej Banky Slovenská Sporiteľňa, A.S. Komerční Banka, A.S. Acting Through Komerční Banka, A.S., Pobočka Zahraničnej Banky and Unicredit Bank Czech Republic and Slovakia, A.S. Acting Through Unicredit Bank Czech Republic and Slovakia, A.S., Pobočka Zahraničnej Banky as Mandated Lead Arrangers and Československá Obchodná Banka, A.S. Citibank Europe PLC Acting Through Citibank Europe PLC, Pobočka Zahraničnej Banky as Lead Arrangers With Ing Bank N.V. as Bookrunner and Coordinator, Facility Agent, Documentation Agent and Sustainability Coordinator Allen & Overy Bratislava, S.R.O. Contents

from 10-Q 314 pages Second Amendment to Abl Credit Agreement

from 10-Q 196 pages Amendment No. 3 to Fifth Amended and Restated Credit Agreement

from 10-Q 113 pages Amended and Restated Senior Multicurrency Revolving Credit Facility Agreement Dated 26 September 2018 as Amended and Restated on the Second Effective Date €460,000,000 Senior Multicurrency Revolving Credit Facility for U. S. Steel Košice, S.R.O. Guaranteed by Ferroenergy S.R.O. Arranged by Commerzbank Aktiengesellschaft, Pobočka Zahraničnej Banky, Bratislava Ing Bank N.V., Pobočka Zahraničnej Banky Komerční Banka, A.S., Pobočka Zahraničnej Banky Slovenská Sporiteľňa, A.S. and Unicredit Bank Czech Republic and Slovakia, A.S., Pobočka Zahraničnej Banky as Mandated Lead Arrangers and Československá Obchodná Banka, A.S. Citibank Europe PLC, Pobočka Zahraničnej Banky as Lead Arrangers With Commerzbank Finance & Covered Bond S.A. as Facility Agent Allen & Overy Bratislava, S.R.O. 0082417-0000251 Euo1: 2001711219.5 Contents

from 10-Q 31 pages Amendment No. 2 to Fifth Amended and Restated Credit Agreement March 26, 2021

from 8-K 35 pages Loan Agreement Between Indiana Finance Authority, as Issuer and United States Steel Corporation $33,300,000 Indiana Finance Authority Environmental Improvement Revenue Bonds, Series 2020a (United States Steel Corporation Project) and Indiana Finance Authority Environmental Improvement Revenue Refunding Bonds, Series 2020b (United States Steel Corporation Project) Dated as of November 1, 2020

from 10-K 11 pages Second Supplemental Agreement Dated 30 November 2020 Between U. S. Steel Košice, S.R.O. Ferroenergy S.R.O. and Commerzbank Finance & Covered Bond S.A as Facility Agent Relating to an Up to Eur460,000,000 Credit Agreement Dated 26 September 2018, as Amended and Restated by a Supplemental Agreement Dated 23 December 2019 Allen & Overy Bratislava, S.R.O. 0082417-0000251 Euo1: 2001692617.6 Contents

from 10-K 8 pages First Amendment and Waiver to the Credit Agreement

from 8-K 273 pages First Amendment to Abl Credit Agreement

from 8-K 35 pages Loan Agreement Between Indiana Finance Authority, as Issuer and United States Steel Corporation $33,300,000 Indiana Finance Authority Environmental Improvement Revenue Bonds, Series 2020a (United States Steel Corporation Project) and Indiana Finance Authority Environmental Improvement Revenue Refunding Bonds, Series 2020b (United States Steel Corporation Project) Dated as of November 1, 2020

from 8-K 85 pages Execution Version Export-Import Transaction Specific Loan and Security Agreement PNC Bank, National Association (As Agent) and the Lenders Party Hereto With United States Steel Corporation United States Steel International, Inc. (Borrowers) September 30, 2020 43871.00006