Exhibit

UNDERWRITING AGREEMENT

United States Steel Corporation

$750,000,000 6.875% Senior Notes due 2025

August 1, 2017

Merrill Lynch, Pierce, Fenner & Smith Incorporated

As Representative of the
several Underwriters listed
in Schedule 1 hereto

c/o Merrill Lynch, Pierce, Fenner & Smith Incorporated

One Bryant Park

New York, New York 10036

Ladies and Gentlemen:

United States Steel Corporation, a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters listed in Schedule 1 hereto (the “Underwriters”), for whom you are acting as representative (the “Representative”), $750,000,000 principal amount of its 6.875% Senior Notes due 2025 (the “Securities”). The Securities will be issued pursuant to an indenture dated as of May 21, 2007 (the “Base Indenture”) between the Company and The Bank of New York Mellon, as trustee (the “Trustee”), as heretofore supplemented and amended and as to be further supplemented and amended by an Eighth Supplemental Indenture, to be dated as of August 4, 2017, to the Base Indenture relating to the Securities (the “Supplemental Indenture” and, together with the Base Indenture and any other amendments or supplements thereto, the “Indenture”), between the Company and the Trustee.

The Company hereby confirms its agreement with the several Underwriters concerning the purchase and sale of the Securities, as follows:

1.Registration Statement. The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Securities Act”), a registration statement on Form S-3 (No. 333‑209914), including a prospectus (the “Basic Prospectus”), relating to the Securities. The Company has also filed, or proposes to file, with the Commission pursuant to Rule 424 under the Securities Act a prospectus supplement specifically relating to the Securities (the “Prospectus Supplement”). The registration statement, as amended at the time of this Agreement, including the information, if any, deemed pursuant to Rule 430A, 430B or 430C under the Securities Act to be part of the registration statement at the time of its effectiveness, is referred to herein as the “Registration Statement”; and as used herein, the term “Prospectus” means the Basic Prospectus included in the Registration Statement (and any amendments thereto) as supplemented by the prospectus supplement specifically relating to the Securities in the form first used (or made available upon request

of purchasers pursuant to Rule 173 under the Securities Act) in connection with confirmation of sales of the Securities and the term “Preliminary Prospectus” means the preliminary prospectus supplement specifically relating to the Securities together with the Basic Prospectus. References herein to the Registration Statement, the Basic Prospectus, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein. The terms “supplement,” “amendment” and “amend” as used herein with respect to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents filed by the Company under the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission thereunder (the “Exchange Act”) subsequent to the date of this Agreement which are deemed to be incorporated by reference therein. For purposes of this Agreement, the term “Effective Time” means the effective date of the Registration Statement with respect to the offering of the Securities, as determined for the Company pursuant to Section 11 of the Securities Act and Item 512 of Regulation S-K, as applicable.

At or prior to 3:30 p.m. on August 1, 2017, the time when the first sale of the Securities was made (the “Time of Sale”), the Company had prepared the following information (collectively, the “Time of Sale Information”): a Preliminary Prospectus, dated July 31, 2017, and each “free writing prospectus” (as defined pursuant to Rule 405 of the Securities Act) identified in Schedule 2 hereto.

2. Purchase of the Securities by the Underwriters. (a) The Company agrees to issue and sell the Securities to the several Underwriters as provided in this Agreement, and each Underwriter, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, agrees, severally and not jointly, to purchase from the Company the respective principal amount of the Securities set forth opposite such Underwriter’s name in Schedule 1 hereto at a price equal to 98.5% of the principal amount thereof plus accrued interest, if any, from August 4, 2017, to the Closing Date (as such term is hereinafter defined). The Company will not be obligated to deliver any of the Securities except upon payment for all the Securities to be purchased as provided herein.

(b) The Company understands that the Underwriters intend to make a public offering of the Securities as soon after the effectiveness of this Agreement as in the judgment of the Representative is advisable, and initially to offer the Securities on the terms set forth in the Prospectus. The Company acknowledges and agrees that the Underwriters may offer and sell Securities to or through any affiliate of an Underwriter and that any such affiliate may offer and sell Securities purchased by it to or through any Underwriter.

(c) Payment for and delivery of the Securities will be made at the offices of Simpson Thacher & Bartlett LLP at 10:00 a.m., New York City time, on August 4, 2017, or at such other time or place on the same or such other date, not later than the fifth business day thereafter, as the Representative and the Company may agree upon in writing. The time and date of such payment and delivery is referred to herein as the “Closing Date.”

(d) Payment for the Securities shall be made by wire transfer in immediately available funds to the account(s) specified by the Company to the Representative against delivery to the nominee of The Depository Trust Company, for the account of the Underwriters, of one or more global notes representing the Securities (the “Global Notes”), with any transfer taxes payable in connection with the sale of the Securities duly paid by the Company. The Global Notes will be in form and substance reasonably satisfactory to the Representative.

(e) The Company acknowledges and agrees that the Underwriters are acting solely in the capacity of an arm’s length contractual counterparty to the Company with respect to the offering of the Securities contemplated hereby (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Company or any other person with respect to such offering. Additionally, no such Underwriter is advising the Company or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction. The Company shall consult with its own advisors concerning such matters and shall be responsible for making its own independent investigation and appraisal of the transactions contemplated hereby, and such Underwriters shall have no responsibility or liability to the Company with respect thereto. Any review by such Underwriters of the Company, the transactions contemplated thereby or other matters relating to such transactions will be performed solely for the benefit of the Underwriters and shall not be on behalf of the Company.

3. Representations and Warranties of the Company. The Company represents and warrants to each Underwriter that:

(a) Registration Statement and Prospectus. The Registration Statement has become effective under the Securities Act. The Registration Statement is an “automatic shelf registration statement” as defined under Rule 405 of the Securities Act that has been filed with the Commission not earlier than three years prior to the date hereof; and no notice of objection of the Commission to the use of such registration statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act has been received by the Company. The Company has not received any order suspending the effectiveness of the Registration Statement by the Commission and has not received notice of any proceeding for that purpose or notice that any action instituted pursuant to Section 8A of the Securities Act against the Company or related to the offering has been initiated or threatened by the Commission; as of the Effective Time, the Registration Statement complied, and as of the date of any amendment thereto will comply, in all material respects with the Trust Indenture Act of 1939, as amended, and the rules and regulations of the Commission thereunder (collectively the “Trust Indenture Act”) and the Securities Act and did not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading; and as of the date of the Prospectus and any amendment or supplement thereto, the Prospectus complied in all material respects with the Securities Act and did not, and as of the Closing Date, the Prospectus will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to (i) that part of the Registration Statement that constitutes the Statement of Eligibility and Qualification (Form T-1) of the Trustee under the Trust Indenture Act or (ii) any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representative expressly for use in the Registration Statement and the Prospectus and any amendment or supplement thereto.

(b) Time of Sale Information. The Time of Sale Information, at the Time of Sale, did not, and at the Closing Date will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the

Representative expressly for use in such Time of Sale Information. No statement of material fact included in the Prospectus that is required to be included in the Time of Sale Information has been omitted from the Time of Sale Information and no statement of material fact included in the Time of Sale Information that is required to be included in the Prospectus has been omitted therefrom.

(c) Issuer Free Writing Prospectus. The Company (including its agents and representatives, other than the Underwriters in their capacity as such) has not prepared, made, used, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any “written communication” (as defined in Rule 405 under the Securities Act) that constitutes an offer to sell or solicitation of an offer to buy the Securities (each such communication by the Company or its agents and representatives (other than a communication referred to in clauses (i), (ii) and (iii) of this Section 3(c)), an “Issuer Free Writing Prospectus”) other than (i) any document not constituting a prospectus pursuant to Section 2(a)(10)(a) of the Securities Act or Rule 134 under the Securities Act, (ii) the Preliminary Prospectus, (iii) the Prospectus, (iv) the documents listed on Schedule 2 hereto which constitutes part of the Time of Sale Information and (v) any electronic road show or any other written communications, in each case approved in writing in advance by the Representative. Each such Issuer Free Writing Prospectus complied in all material respects with the Securities Act, has been or will be (within the time period specified in Rule 433) filed in accordance with the Securities Act (to the extent required thereby) and, when taken together with the Time of Sale Information (at the Time of Sale) accompanying, or delivered prior to delivery of, or filed prior to the first use of such Issuer Free Writing Prospectus, did not, and at the Closing Date will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation or warranty with respect to any statements or omissions made in each such Issuer Free Writing Prospectus in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representative expressly for use in any Issuer Free Writing Prospectus.

(d) Incorporated Documents. The documents incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus, when filed with the Commission, conformed or will conform, as the case may be, in all material respects with the requirements of the Exchange Act and did not and will not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

(e) Company Organization and Good Standing. The Company has been duly incorporated and is an existing corporation in good standing under the laws of the State of Delaware, with power and authority (corporate and other) to own its properties and conduct its business as described in the Time of Sale Information and the Prospectus; and the Company is duly qualified to do business as a foreign corporation in good standing in all other jurisdictions in which its ownership or lease of property or the conduct of its business requires such qualification, except where the failure to so qualify would not reasonably be expected to have a material adverse effect upon the financial condition, business, properties or results of operations of the Company and its subsidiaries, taken as a whole, or on the performance by the Company of its obligations under this Agreement and the Securities (a “Material Adverse Effect”).

(f) Subsidiary Organization and Good Standing. Each subsidiary of the Company listed on Annex A (each, a “Designated Subsidiary”) has been duly incorporated or otherwise organized and is an

existing corporation, limited liability company or other business entity in good standing (if such designation exists in the jurisdiction of organization or formation of such entity) under the laws of the jurisdiction of its incorporation or organization, with power and authority (corporate, limited liability company and other) to own its properties and conduct its business as described in the Time of Sale Information and the Prospectus; and each Designated Subsidiary of the Company is duly qualified to do business as a foreign corporation or other business entity in good standing in all other jurisdictions in which its ownership or lease of property or the conduct of its business requires such qualification, except where the failure to so qualify would not reasonably be expected to have a Material Adverse Effect; all of the issued and outstanding capital stock or other equity securities of each Designated Subsidiary of the Company have been duly authorized and are validly issued, fully paid and nonassessable (except, in the case of any foreign subsidiary, for directors’ qualifying shares); and the shares of capital stock or other equity securities of each Designated Subsidiary owned by the Company, directly or through subsidiaries, are owned free from any lien, charge, encumbrance, defect, security interest, restriction on voting or transfer or any other claim of any third party (collectively, “Liens”), except such Liens that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. As of June 30, 2017, there are no significant subsidiaries of the Company that are not listed on Annex A hereto. The subsidiaries of the Company not listed on Annex A hereto, in the aggregate, represented no more than 15% of the (i) net sales of the Company and its subsidiaries for the twelve months ended June 30, 2017 and (ii) total assets of the Company and its subsidiaries as of June 30, 2017.

(g) Capitalization. All outstanding shares of capital stock of the Company have been duly authorized and are validly issued, fully paid and non-assessable and are not subject to any pre-emptive or similar rights. The Company has an authorized capitalization as of June 30, 2017 as set forth in the Registration Statement, the Time of Sale Information and the Prospectus under the heading “Capitalization.”

(h) No Broker’s Fees. Except as disclosed in the Time of Sale Information and the Prospectus, there are no contracts, agreements or understandings between the Company and any person that would give rise to a valid claim against the Company or any Underwriter for a brokerage commission, finder’s fee or other like payment in connection with this offering.

(i) No Registration Rights. There are no contracts, agreements or understandings between the Company and any person granting such person the right to require the Company to file a registration statement under the Securities Act with respect to any securities of the Company owned or to be owned by such person or to require the Company to include such securities in the securities registered pursuant to the Registration Statement or with any securities being registered pursuant to any other registration statement filed by the Company under the Securities Act.

(j) No Consents Required. No consent, approval, authorization, or order of, or filing with, any governmental agency or body or any court is required for the consummation of the transactions contemplated by this Agreement, the Securities and the Indenture (collectively, the “Transaction Documents”) in connection with the issuance and sale of the Securities or the consummation of the Transactions by the Company, except such (i) as have been obtained and made under the Securities Act and (ii) as may be required under state securities laws in connection with the purchase and distribution of the Securities by the Underwriters, and except for such consents, approvals, authorizations, orders or filings the failure of which to obtain or make would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(k) No Conflicts. The execution, delivery and performance by the Company of the Transaction Documents, the issuance and sale of the Securities and compliance by the Company with the terms thereof and the consummation of the transactions contemplated by the Transaction Documents, will not result in a breach or violation of any of the terms and provisions of, or constitute a default under, (i) any statute, any rule, regulation or order of any governmental agency or body or any court, domestic or foreign, having jurisdiction over the Company or any Designated Subsidiary of the Company or any of their properties, (ii) any agreement or instrument to which the Company or any such Designated Subsidiary is a party or by which the Company or any such Designated Subsidiary is bound or to which any of the properties of the Company or any such Designated Subsidiary is subject or (iii) the charter, by-laws or other organizational document of the Company or any such Designated Subsidiary.

(l) Due Authorization. The Company has full right, power and authority to execute and deliver the Transaction Documents and to perform its obligations hereunder and thereunder; and all action required to be taken for the due and proper authorization, execution and delivery of each of the Transaction Documents and the consummation of the transactions contemplated thereby has been duly and validly taken.

(m) The Indenture. The Indenture has been duly authorized by the Company and has been duly qualified under the Trust Indenture Act and the Base Indenture constitutes, and the Supplemental Indenture, when duly executed and delivered in accordance with its terms by each of the parties thereto, will constitute, a valid and legally binding agreement of the Company enforceable against the Company in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency or similar laws affecting the enforcement of creditors' rights generally or by equitable principles relating to enforceability (collectively, the “Enforceability Exceptions”).

(n) The Securities. The Securities have been duly authorized by the Company and, when duly executed, authenticated, issued and delivered in accordance with the Indenture and paid for as provided herein, will be duly and validly issued and outstanding and will constitute valid and legally binding obligations of the Company, enforceable against the Company in accordance with their terms, subject to the Enforceability Exceptions, and will be entitled to the benefits of the Indenture.

(o) Underwriting Agreement. This Agreement has been duly authorized, executed and delivered by the Company.

(p) No Violation or Default. Neither the Company nor any of the Designated Subsidiaries is (i) in violation of its respective charter or by-laws or other organizational documents, (ii) in default in the performance of any obligation, agreement, covenant or condition contained in any indenture, loan agreement, mortgage, lease or other agreement or instrument that is material to the Company and its subsidiaries, taken as a whole, to which the Company or any Designated Subsidiaries is a party or by which the Company or any Designated Subsidiaries or their respective property is bound, or (iii) in violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority, except for such defaults and violations in the case of these clauses (ii) and (iii) that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(q) Title to Real and Personal Property. Except as disclosed in the Time of Sale Information and the Prospectus, the Company and the Designated Subsidiaries have good and marketable title to all

real properties and good and indefeasible title to all other properties and assets owned by them that are material to the business of the Company and its subsidiaries, in each case free from liens, encumbrances, claims, security interests, defects and imperfections of title, except such liens, encumbrances, claims, defects and imperfections of title that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; and except as disclosed in the Time of Sale Information and the Prospectus, the Company and its subsidiaries hold their respective leased real or personal property under valid and enforceable leases free from any liens, encumbrances, claims, security interests, restrictions, defects and imperfections of title or exceptions that would materially interfere with the business of the Company and its subsidiaries, taken as a whole. The Company and its subsidiaries own or lease all properties and assets necessary to conduct their business as described in the Time of Sale Information and the Prospectus.

(r) Licenses and Permits. The Company and the Designated Subsidiaries possess adequate licenses, certificates, authorities or permits issued by the appropriate governmental agencies or bodies necessary to conduct their business as described in the Time of Sale Information and the Prospectus and have not received any notice of proceedings relating to the revocation or modification of any such license, certificate, authority or permit that, if determined adversely to the Company or any Designated Subsidiary, would reasonably be expected to have a Material Adverse Effect.

(s) Descriptions of the Transaction Documents. The Transaction Documents conform in all material respects to the descriptions thereof contained in the Time of Sale Information and the Prospectus.

(t) No Labor Disputes. Except as disclosed in the Time of Sale Information and the Prospectus, no labor dispute with the employees of the Company or any of its subsidiaries exists or, to the knowledge of the Company, is imminent that would reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect.

(u) Title to Intellectual Property. Except as would not reasonably be expected to have a Material Adverse Effect, (i) the Company and the Designated Subsidiaries own, possess, have the right to use or can acquire on reasonable terms adequate patents, patent applications, trademarks, service marks, trade names, trademark registrations, service mark registrations, domain names and other source indicators, copyrights and copyrightable works, know-how, trade secrets, systems, procedures, proprietary or confidential information and all other intellectual property, industrial property and proprietary rights (collectively, “Intellectual Property”) to conduct their respective businesses; (ii) the Company and the Designated Subsidiaries’ conduct of their respective businesses does not infringe, misappropriate or otherwise violate any Intellectual Property of any person; (iii) the Company and the Designated Subsidiaries have not received any written notice of any claim relating to Intellectual Property; and (iv) to the knowledge of the Company, the Intellectual Property of the Company and the Designated Subsidiaries is not being infringed, misappropriated or otherwise violated by any person.

(v) Compliance With Environmental Laws. Except as disclosed in the Time of Sale Information and the Prospectus, neither the Company nor any of its subsidiaries is in violation of any statute, any rule, regulation, decision or order of any governmental agency or body or any court, domestic or foreign, relating to the use, disposal or release of hazardous or toxic substances or relating to the protection or restoration of the environment or human exposure to hazardous or toxic substances (collectively, “environmental laws”), owns or operates any real property contaminated with any substance that is subject to any environmental laws, is liable for any off-site disposal or contamination

pursuant to any environmental laws, or is subject to any claim relating to any environmental laws, which violation, contamination, liability or claim could reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect; and the Company is not aware of any pending investigation which would reasonably be expected to lead to such a claim.

(w) Legal Proceedings. Except as described in the Time of Sale Information and the Prospectus, there are no legal, governmental or regulatory actions, claims, suits, arbitrations or proceedings (“Actions”) pending to which the Company or any of its subsidiaries is a party or to which any property, right or asset of the Company or any of its subsidiaries is the subject that could, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; and neither any such Actions nor any legal, governmental or regulatory investigations to which the Company or any of its subsidiaries is a party or to which any property, right or asset of the Company or any of its subsidiaries is the subject that could, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, are, to the knowledge of the Company, threatened by any governmental or regulatory authority or by others.

(x) Financial Statements of the Company. The financial statements of the Company and the related notes thereto included or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus present fairly in all material respects the consolidated financial position of the Company and its consolidated subsidiaries as of the dates shown and their results of operations and cash flows for the periods shown, and, except as otherwise disclosed in the Time of Sale Information and the Prospectus, such financial statements have been prepared in conformity with generally accepted accounting principles in the United States applied on a consistent basis throughout the periods covered thereby, and the supporting schedules included in the Registration Statement present fairly the information required to be stated therein; and the other financial information of the Company included in the Registration Statement, the Time of Sale Information and the Prospectus has been derived from the accounting records of the Company and its subsidiaries and presents fairly in all material respects the information shown thereby.

(y) Taxes. The Company and its Designated Subsidiaries have timely filed all material federal, state, local and foreign income tax returns that have been required to be filed and have paid all taxes indicated by said returns and all assessments received by any of them to the extent that such material taxes have become due and are not being contested in good faith in appropriate proceedings. All material tax liabilities have been adequately provided for in the financial statements of the Company.

(z) No Material Adverse Change. Since the date of the most recent financial statements of the Company included in the Registration Statement, the Time of Sale Information and the Prospectus, (i) there has not been any material change in the capital stock or long term debt of the Company or any of its subsidiaries, or any dividend or distribution of any kind declared, set aside for payment, paid or made by the Company on any class of capital stock (other than any regular quarterly dividend), or any material adverse change, or any development involving a prospective material adverse change, in or affecting the business, properties, rights, assets, management, financial position, results of operations or prospects of the Company and its subsidiaries taken as a whole; (ii) neither the Company nor any of its subsidiaries has entered into any transaction or agreement that is material to the Company and its subsidiaries taken as a whole or incurred any liability or obligation, direct or contingent, that is material to the Company and its subsidiaries taken as a whole; and (iii) neither the Company nor any of its subsidiaries has sustained any material loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor disturbance or dispute or any

action, order or decree of any court or arbitrator or governmental or regulatory authority, except in each case of (i), (ii) and (iii) of this Section 3(z) as otherwise disclosed in the Registration Statement, the Time of Sale Information and the Prospectus.

(aa) Reporting Requirements. The Company is subject to the reporting requirements of either Section 13 or Section 15(d) of the Exchange Act and files reports with the Commission on the Electronic Data Gathering, Analysis, and Retrieval (EDGAR) system.

(bb) Independent Accountants. PricewaterhouseCoopers LLP, who has certified certain financial statements of the Company and its subsidiaries, are independent public accountants with respect to the Company and its subsidiaries within the applicable rules and regulations adopted by the Commission and the Public Company Accounting Oversight Board (United States) and as required by the Securities Act.

(cc) No Undisclosed Relationships. No relationship, direct or indirect, exists between or among the Company or any of its subsidiaries, on the one hand, and the directors, officers, stockholders, customers or suppliers of the Company or any of its subsidiaries, on the other, that is required by the Securities Act to be described in the Registration Statement, the Time of Sale Information and the Prospectus and that is not so described.

(dd) Compliance With ERISA. (1) Each employee benefit plan (including, without limitation, any “multiemployer plan” within the meaning of Section 4001(a)(3) of ERISA), within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), that is maintained, administered or contributed to by the Company or any of its affiliates for employees or former employees of the Company and its affiliates has been maintained in compliance in all material respects with its terms and the requirements of any applicable statutes, orders, rules and regulations, including but not limited to ERISA and the Internal Revenue Code of 1986, as amended (the “Code”); (2) no prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred with respect to any such plan excluding transactions effected pursuant to a statutory or administrative exemption; (3) no failure to meet the minimum funding standards under Section 412 of the Code or Section 302 of ERISA has occurred with respect to any such plan which is subject to Section 412 of the Code or Section 302 of ERISA and no application has been made for a waiver or modification of the minimum funding standard (including any required installment payments) under Section 412 of the Code or Section 302 of ERISA with respect to any such plan; and (4) except as otherwise disclosed in the Time of Sale Information and the Prospectus, the fair market value of the assets of each such plan (excluding for these purposes accrued but unpaid contributions) exceeds the present value of all benefits accrued under such plan based on actuarial assumptions and methods that are compliant with the requirements of Code Section 430(h) and regulations thereunder; and neither the Company nor any of its affiliates has incurred, or reasonably expects to incur, any liability under Title IV of ERISA in respect of any such plan, other than liability for the payment of required PBGC insurance premiums under Section 4007 of ERISA; provided, however that for purposes of clauses (1) – (3), such representations shall be made to the knowledge of the Company.

(ee) Disclosure Controls. The Company and its subsidiaries maintain an effective system of “disclosure controls and procedures” (as defined in Rule 13a-15(e) of the Exchange Act) that is designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Commission’s rules and forms, including controls and procedures designed to ensure

that such information is accumulated and communicated to the Company’s management as appropriate to allow timely decisions regarding required disclosure. As of the date of the Time of Sale Information and the Prospectus, the Company and its subsidiaries have carried out evaluations of the effectiveness of their disclosure controls and procedures as required by Rule 13a-15 of the Exchange Act.

(ff) Accounting Controls. The Company and its subsidiaries maintain systems of “internal control over financial reporting” (as defined in Rule 13a-15(f) of the Exchange Act) that comply with the requirements of the Exchange Act and have been designed by, or under the supervision of their respective principal executive and principal financial officers, or persons performing similar functions, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles in the United States, including, but not limited to internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles in the United States and to maintain asset accountability; (iii) access to assets is permitted only in accordance with management's general or specific authorization; and (iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. Except as disclosed in the Registration Statement, the Time of Sale Information and the Prospectus, there are no “material weaknesses” in the Company’s internal controls over financial reporting.

(gg) Sarbanes-Oxley Act. There is and has been no failure on the part of the Company or to the Company’s knowledge, any of the Company’s directors or officers, in their capacities as such, to comply in all material respects with the applicable provisions of the Sarbanes-Oxley Act of 2002, as amended, and the rules and regulations promulgated in connection therewith, including Section 402 related to loans and Sections 302 and 906 related to certifications.

(hh) No Unlawful Payments. Except as specifically disclosed in the Company’s public filings as of the date of this Agreement, neither the Company nor any of its subsidiaries, nor any director, officer or employee of the Company or any of its subsidiaries nor, to the knowledge of the Company, any agent or affiliate acting on behalf of the Company or any of its subsidiaries, has (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made or taken an act in furtherance of an offer, promise or authorization of any direct or indirect unlawful payment or unlawful benefit to any foreign or domestic government official or employee, including of any government-owned or controlled entity or of a public international organization, or any person acting in an official capacity for or on behalf of any of the foregoing, or any political party or party official or candidate for political office; (iii) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977, as amended, or any other applicable anti-bribery or anti-corruption law; or (iv) made, offered, agreed, requested or taken an act in furtherance of any unlawful bribe or other unlawful benefit, including, without limitation, any rebate, payoff, influence payment, kickback or other unlawful or improper payment or benefit. The Company and its subsidiaries have instituted, maintain and enforce policies and procedures designed to promote and ensure compliance with all applicable anti-bribery and anti-corruption laws.

(ii) Compliance with Money Laundering Laws. The operations of the Company and its subsidiaries are and have been conducted at all times in compliance in all material respects with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the applicable money laundering statutes of all jurisdictions where

the Company or any of its subsidiaries conducts business, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the “Anti-Money Laundering Laws”), and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Anti-Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

(jj) Compliance with Sanctions Laws. Neither the Company nor any of its subsidiaries, directors, officers or employees, nor, to the knowledge of the Company, any agent, affiliate or other person associated with or acting on behalf of the Company or any of its subsidiaries is currently the subject or the target of any sanctions administered or enforced by the U.S. government (including, without limitation, the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”) or the U.S. Department of State and including, without limitation, the designation as a “specially designated national” or “blocked person”), the United Nations Security Council (“UNSC”), the European Union or other relevant sanctions authority (collectively, “Sanctions”), nor is the Company or any of its subsidiaries located, organized or resident in a country or territory that is the subject or target of Sanctions, including, without limitation, Cuba, Iran, North Korea, Sudan, Syria and Crimea (each, a “Sanctioned Country”); and the Company will not directly or indirectly use the proceeds of the offering of the Securities hereunder, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity (i) to fund or facilitate any activities of or business with any person that, at the time of such funding or facilitation, is the subject or target of Sanctions, to the extent such activities or business would be prohibited by applicable Sanctions, (ii) to fund or facilitate any activities of or business in any Sanctioned Country, to the extent such activities or business would be prohibited by applicable Sanctions, or (iii) in any other manner that will result in a violation by any person (including any person participating in the transaction, whether as underwriter, initial purchaser, advisor, investor or otherwise) of Sanctions. For the past five years, the Company and its subsidiaries have not knowingly engaged in and are not now knowingly engaged in any unlawful dealings or transactions with any person that at the time of the dealing or transaction is or was the subject or the target of Sanctions or with any Sanctioned Country.

(kk) No Stabilization. The Company has not taken, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Securities.

(ll) Investment Company Act. The Company is not and, after giving effect to the offering and sale of the Securities and the application of the proceeds thereof as described in the Time of Sale Information and the Prospectus, will not be an “investment company” as defined in the Investment Company Act of 1940.

(mm) Status under the Securities Act. The Company is not an ineligible issuer and is a well-known seasoned issuer, in each case as defined under the Securities Act, in each case at the times specified in the Securities Act in connection with the offering of the Securities.

(nn) Statistical and Market Data. Nothing has come to the attention of the Company that has caused the Company to believe that the statistical and market-related data included in the Registration Statement, the Time of Sale Information and the Prospectus is not based on or derived from sources that are reliable and accurate in all material respects.

(oo) Forward-Looking Statements. No forward-looking statement (within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act) included or incorporated by reference in the Registration Statement, the Time of Sale Information or the Prospectus has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith.

(pp) Stock Options. With respect to the stock options (the “Stock Options”) granted pursuant to the stock-based compensation plans of the Company and its subsidiaries (the “Company Stock Plans”), (i) each Stock Option intended to qualify as an “incentive stock option” under Section 422 of the Code so qualifies, (ii) each grant of a Stock Option was duly authorized no later than the date on which the grant of such Stock Option was by its terms to be effective (the “Grant Date”) by all necessary corporate action, including, as applicable, approval by the board of directors of the Company (or a duly constituted and authorized committee thereof) and any required stockholder approval by the necessary number of votes or written consents, and the award agreement governing such grant (if any) was duly executed and delivered by each party thereto, (iii) each such grant was made in accordance with the terms of the Company Stock Plans, the Exchange Act and all other applicable laws and regulatory rules or requirements, including the rules of the New York Stock Exchange and any other exchange on which Company securities are traded, and (iv) each such grant was properly accounted for in accordance with GAAP in the financial statements (including the related notes) of the Company and disclosed in the Company's filings with the Commission in accordance with the Exchange Act and all other applicable laws. The Company has not knowingly granted, and there is no and has been no policy or practice of the Company of granting, Stock Options prior to, or otherwise coordinating the grant of Stock Options with, the release or other public announcement of material information regarding the Company or its subsidiaries or their results of operations or prospects.

(qq) eXtensible Business Reporting Language. The interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement fairly presents the information called for in all material respects and has been prepared in accordance with the Commission’s rules and guidelines applicable thereto.

4. Further Agreements of the Company. The Company covenants and agrees with each Underwriter that:

(a) Filings with the Commission. The Company will (i) pay the registration fees for this offering within the time period required by Rule 456(b)1(i) under the Securities Act (without giving effect to the proviso therein) and in any event prior to the Closing Date and (ii) file the Prospectus in a form approved by the Representative on behalf of the Underwriters with the Commission pursuant to Rule 424 under the Securities Act not later than the close of business on the second business day following the date of determination of the public offering price of the Securities or, if applicable, such earlier time as may be required by Rule 424(b) and Rule 430A, 430B or 430C under the Securities Act. The Company will file any Issuer Free Writing Prospectus (including the Pricing Term Sheet substantially in the form of Schedule 3 hereto) to the extent required by Rule 433 under the Securities Act, and the Company will furnish copies of the Prospectus and each Issuer Free Writing Prospectus (to the extent not previously delivered) to the Underwriters in New York City prior to 10:00 A.M., New York City time, on the business day next succeeding the date of this Agreement in such quantities as the Representative may reasonably request.

(b) Delivery of Copies. The Company will deliver, without charge, to each Underwriter (A) a conformed copy of the Registration Statement as originally filed and each amendment thereto, in each

case including all exhibits and consents filed therewith and (B) during the Prospectus Delivery Period (as hereinafter defined), as many copies of the Prospectus (including all amendments and supplements thereto and documents incorporated by reference therein) and each Issuer Free Writing Prospectus (if applicable) as the Representative may reasonably request. As used herein, the term “Prospectus Delivery Period” means such period of time after the first date of the public offering of the Securities as in the opinion of counsel for the Underwriters a prospectus relating to the Securities is required by law to be delivered (or would be required to be delivered but for Rule 172 under the Securities Act) in connection with sales of the Securities by any Underwriter or dealer.

(c) Amendments or Supplements; Issuer Free Writing Prospectuses. In connection with the transactions contemplated by this Agreement, before making, preparing, using, authorizing, approving, referring to or filing any Issuer Free Writing Prospectus, and before filing any amendment or supplement to the Registration Statement or the Prospectus, the Company will furnish to the Representative and counsel for the Underwriters a copy of the proposed Issuer Free Writing Prospectus, amendment or supplement for review and will not make, prepare, use, authorize, approve, refer to or file any such Issuer Free Writing Prospectus or file any such proposed amendment or supplement to which the Representative reasonably objects unless the Company reasonably believes such filing is required under applicable law.

(d) Notice to the Representative. The Company will advise the Representative promptly, and confirm such advice in writing (which may be by email), (i) when any amendment to the Registration Statement has been filed or becomes effective; (ii) when any supplement to the Prospectus, any amendment to the Prospectus or any Issuer Free Writing Prospectus has been filed; (iii) (a) of any request by the Commission for any amendment to the Registration Statement, (b) of any amendment or supplement to the Prospectus, (c) of the receipt of any comments from, or requests for additional information by, the Commission relating to the Registration Statement or (d) within the Prospectus Delivery Period, of any other request by the Commission for any additional information; (iv) upon receipt of notice of the issuance by the Commission of any order suspending the effectiveness of the Registration Statement or preventing or suspending the use of any Preliminary Prospectus or the Prospectus or the initiation or, to the knowledge of the Company, threatening of any proceeding for that purpose or pursuant to Section 8A of the Securities Act; (v) of the occurrence of any event within the Prospectus Delivery Period as a result of which the Prospectus, the Time of Sale Information or any Issuer Free Writing Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus, the Time of Sale Information or any Issuer Free Writing Prospectus is delivered to a purchaser, not misleading; (vi) of the receipt by the Company of any notice of objection of the Commission to the use of the Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act; and (vii) of the receipt by the Company of any notice with respect to any suspension of the qualification of the Securities for offer and sale in any jurisdiction or the initiation or, to the knowledge of the Company, threatening of any proceeding for such purpose; and the Company will use its commercially reasonable efforts to prevent the issuance of any such order suspending the effectiveness of the Registration Statement, preventing or suspending the use of any Preliminary Prospectus or the Prospectus or suspending any such qualification of the Securities and, if any such order is issued, will use its commercially reasonable efforts to obtain as soon as possible the withdrawal thereof.

(e) Time of Sale Information. If at any time prior to the Closing Date (i) any event shall occur or condition shall exist as a result of which the Time of Sale Information as then amended or

supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances, not misleading or (ii) it is necessary to amend or supplement the Time of Sale Information to comply with applicable law, the Company will promptly notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) of this Section 4, file with the Commission (to the extent required) and furnish to the Underwriters and to such dealers as the Representative may designate, such amendments or supplements to the Time of Sale Information as may be necessary so that the statements in the Time of Sale Information as so amended or supplemented will not, in the light of the circumstances, be misleading or so that the Time of Sale Information will comply with applicable law.

(f) Ongoing Compliance. If during the Prospectus Delivery Period (i) any event shall occur or condition shall exist as a result of which the Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Prospectus to comply with applicable law, the Company will promptly notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) of this Section 4, file with the Commission and furnish to the Underwriters and to such dealers as the Representative may designate, such amendments or supplements to the Prospectus as may be necessary so that the statements in the Prospectus as so amended or supplemented will not, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, be misleading or so that the Prospectus will comply with applicable law.

(g) Blue Sky Compliance. The Company will qualify the Securities for offer and sale under the securities or Blue Sky laws of such U.S. jurisdictions as the Representative shall reasonably request and will continue such qualifications in effect so long as required for distribution of the Securities; provided that the Company shall not be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject.

(h) Earning Statement. The Company will make generally available to its security holders and the Representative as soon as practicable an earning statement that satisfies the provisions of Section 11(a) of the Securities Act and Rule 158 of the Commission promulgated thereunder covering a period of at least twelve months beginning with the first fiscal quarter of the Company occurring after the “effective date” (as defined in Rule 158) of the Registration Statement; provided that the Company will be deemed to have complied with such requirement by filing on EDGAR a report that satisfies the requirements of an “earning statement” (as defined in Rule 158).

(i) Clear Market. During the period from the date hereof through and including the date that is 30 days after the date hereof, the Company will not, without the prior written consent of Merrill Lynch, Pierce, Fenner & Smith Incorporated, offer, sell, contract to sell or otherwise dispose of any debt securities issued or guaranteed by the Company and having a term of more than one year.

(j) Use of Proceeds. The Company will apply the net proceeds from the sale of the Securities as described in the Time of Sale Information and the Prospectus under the heading “Use of proceeds.”

(k) No Stabilization. The Company will not take, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Securities.

(l) Record Retention. The Company will, pursuant to reasonable procedures developed in good faith, retain copies of each Issuer Free Writing Prospectus that is not filed with the Commission for three years after the Closing Date in accordance with Rule 433 under the Securities Act.

(m) Notice of Inability to Use Automatic Shelf Registration Statement Form. If at any time during the Prospectus Delivery Period, the Company receives from the Commission a notice pursuant to Rule 401(g)(2) or otherwise ceases to be eligible to use the automatic shelf registration statement form, the Company will (i) promptly notify the Representative, (ii) promptly file a new registration statement or post‑effective amendment on the proper form relating to the Securities, in a form satisfactory to the Representative, (iii) use its best efforts to cause such registration statement or post‑effective amendment to be declared effective and (iv) promptly notify the Representative of such effectiveness. The Company will take all other action necessary or appropriate to permit the public offering and sale of the Securities to continue as contemplated in the registration statement that was the subject of the Rule 401(g)(2) notice or for which the Company has otherwise become ineligible. References herein to the Registration Statement shall include such new registration statement or post‑effective amendment, as the case may be.

5. Certain Agreements of the Underwriters. Each Underwriter hereby represents and agrees that:

(a) It has not and will not use, authorize use of, refer to, or participate in the planning for use of, any “free writing prospectus,” as defined in Rule 405 under the Securities Act (which term includes use of any written information furnished to the Commission by the Company and not incorporated by reference into the Registration Statement and any press release issued by the Company) other than (i) a free writing prospectus that, solely as a result of use by such Underwriter, would not trigger an obligation to file such free writing prospectus with the Commission pursuant to Rule 433, (ii) any Issuer Free Writing Prospectus listed on Schedule 2 hereto or prepared pursuant to Section 3(c) or Section 4(c) (including any electronic road show), or (iii) any free writing prospectus prepared by such Underwriter and approved by the Company and the Representative in advance in writing. Notwithstanding the foregoing the Underwriters may use a term sheet substantially in the form of Schedule 3 hereto without the consent of the Company.

(b) The Representative, on behalf of the several Underwriters, will, pursuant to reasonable procedures developed in good faith, retain copies of each Issuer Free Writing Prospectus that is not filed with the Commission for three years after the Closing Date in accordance with Rule 433 under the Securities Act.

(c) It is not subject to any pending proceeding under Section 8A of the Securities Act with respect to the offering of the Securities (and will promptly notify the Company if any such proceeding against it is initiated during the Prospectus Delivery Period).

6. Conditions of Underwriters’ Obligations. The obligation of each Underwriter to purchase Securities on the Closing Date as provided herein is subject to the performance by the Company of its covenants and other obligations hereunder and to the following additional conditions:

(a) Registration Compliance; No Stop Order. If a post-effective amendment to the Registration Statement is required to be filed under the Securities Act, such post-effective amendment shall have become effective, and the Representative shall have received notice thereof, not later than 5:00 p.m., New York City time, on the date hereof; no order suspending the effectiveness of the Registration Statement shall be in effect, and no proceeding for such purpose, pursuant to Rule 401(g)(2) or pursuant to Section 8A under the Securities Act shall be pending before or threatened by the Commission; the Prospectus and each Issuer Free Writing Prospectus shall have been timely filed with the Commission under the Securities Act (in the case of an Issuer Free Writing Prospectus, to the extent required by Rule 433 under the Securities Act) and in accordance with Section 4(a) hereof; and all requests by the Commission for additional information shall have been complied with to the reasonable satisfaction of the Representative.

(b) Representations and Warranties. The representations and warranties of the Company contained herein shall be true and correct on the date hereof and on and as of the Closing Date; and the statements of the Company and its officers made in any certificates delivered pursuant to this Agreement shall be true and correct on and as of the Closing Date.

(c) No Downgrade. Subsequent to the earlier of (A) the Time of Sale and (B) the execution and delivery of this Agreement, (i) no downgrading shall have occurred in the rating accorded any securities issued or guaranteed by the Company or any of its subsidiaries by any “nationally recognized statistical rating organization,” as such term is defined under Section 3(a)(62) under the Exchange Act and (ii) no such organization shall have publicly announced that it has under surveillance or review, or has changed its outlook with respect to, its rating of any securities issued or guaranteed by the Company or any of its subsidiaries (other than an announcement with positive implications of a possible upgrading).

(d) No Material Adverse Change. Subsequent to the execution and delivery of this Agreement, no event or condition of a type described in Section 3(z) hereof shall have occurred or shall exist, which event or condition is not described in the Time of Sale Information (excluding any amendment or supplement thereto) and the Prospectus (excluding any amendment or supplement thereto) and the effect of which in the judgment of the Representative makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Prospectus.

(e) Officer’s Certificate. The Representative shall have received on and as of the Closing Date a certificate of an executive officer of the Company (acting in such capacity on behalf of the Company and not in such executive officer’s personal capacity) who has specific knowledge of the Company’s financial matters and is reasonably satisfactory to the Representative (i) confirming that such officer has carefully reviewed the Registration Statement, the Time of Sale Information and the Prospectus and, to the knowledge of such officer, the representations set forth in Sections 3(a) and 3(b) hereof are true and correct; (ii) confirming that the other representations and warranties of the Company in this Agreement are true and correct and that the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to the Closing Date; and (iii) to the effect set forth in paragraphs (a), (c) and (d) of this Section 6.

(f) Comfort Letters for the Company. On the date of this Agreement and on the Closing Date, PricewaterhouseCoopers LLP shall have furnished to the Representative, at the request of the Company, letters, dated the respective dates of delivery thereof and addressed to the Underwriters, in

form and substance reasonably satisfactory to the Representative, containing statements and information of the type customarily included in accountants’ “comfort letters” to underwriters with respect to the Company’s financial statements and certain financial information contained or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus; provided that the letter delivered on the Closing Date shall use a “cut-off” date no more than three business days prior to the Closing Date.

(g) Opinion of Counsel for the Company. Opinion and Negative Assurance Statement of Outside Counsel for the Company. DLA Piper LLP (US), counsel for the Company, shall have furnished to the Representative, at the request of the Company, an opinion and negative assurance statement, dated the Closing Date and addressed to the Underwriters, in form and substance reasonably satisfactory to the Representative, to the effect set forth in Annex B hereto.

(h) Opinion and Negative Assurance Statement of Counsel for the Underwriters. The Representative shall have received on and as of the Closing Date an opinion and negative assurance statement of Simpson Thacher & Bartlett LLP, counsel for the Underwriters, addressed to the Underwriters, with respect to such matters as the Representative may reasonably request, and such counsel shall have received such documents and information as they may reasonably request to enable them to pass upon such matters.

(i) No Legal Impediment to Issuance. No action shall have been taken and no statute, rule, regulation or order shall have been enacted, adopted or issued by any federal, state or foreign governmental or regulatory authority that would, as of the Closing Date, prevent the issuance or sale of the Securities; and no injunction or order of any federal, state or foreign court shall have been issued that would, as of the Closing Date, prevent the issuance or sale of the Securities.

(j) Good Standing. The Representative shall have received on and as of the Closing Date satisfactory evidence of the good standing of the Company and its Designated Subsidiaries, other than the Designated Subsidiaries organized and existing outside the United States, in their respective jurisdictions of organization and their good standing in such other jurisdictions as the Representative may reasonably request, in each case in writing or any standard form of telecommunication from the appropriate governmental authorities of such jurisdictions.

(k) Additional Documents. On or prior to the Closing Date, the Company shall have furnished to the Representative such further certificates and documents as the Representative may reasonably request.

(l) Supplemental Indenture Relating to Securities. The Representative shall have received an executed copy of the Supplemental Indenture.

All opinions, letters, certificates and evidence mentioned above or elsewhere in this Agreement shall be deemed to be in compliance with the provisions hereof only if they are in form and substance reasonably satisfactory to counsel for the Underwriters.

7. Indemnification and Contribution.

(a) Indemnification of the Underwriters. The Company agrees to indemnify and hold harmless each Underwriter, its affiliates, directors and officers and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act,

from and against any and all losses, claims, damages and liabilities (including, without limitation, reasonable, documented legal fees and other reasonable, documented expenses incurred in connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement, or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein, not misleading, or (ii) any untrue statement or alleged untrue statement of a material fact contained in the Prospectus (or any amendment or supplement thereto), any Issuer Free Writing Prospectus or any Time of Sale Information, or caused by any omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representative expressly for use therein.

(b) Indemnification of the Company. Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors, its officers who signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) of this Section 7, but only with respect to any losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Underwriter furnished to the Company in writing by such Underwriter through the Representative expressly for use in the Registration Statement, the Prospectus (or any amendment or supplement thereto), any Issuer Free Writing Prospectus or any Time of Sale Information, it being understood and agreed that the only such information consists of the following: the statements concerning the Underwriters contained in the first paragraph under the subsection “Commissions and Discounts,” the third sentence under the subsection “New Issue of Notes” and the first three paragraphs under the subsection “Short Positions” under the heading “Underwriting” in the Prospectus.

(c) Notice and Procedures. If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any person in respect of which indemnification may be sought pursuant to either paragraph (a) or (b) of this Section 7, such person (the “Indemnified Person”) shall promptly notify the person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under this Section 7 except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided, further, that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under this Section 7. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person (who shall not, without the written consent of the Indemnified Person, be counsel to the Indemnifying Person) to represent the Indemnified Person and any others entitled to indemnification pursuant to this Section 7 that the Indemnifying Person may designate in such proceeding and shall pay the reasonable, documented fees and expenses of such counsel related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified

Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and the Indemnified Person shall have reasonably concluded that representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the reasonable, documented fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and expenses shall be reimbursed as they are incurred. Any such separate firm for any Underwriter, its affiliates, directors and officers and any control persons of such Underwriter shall be designated in writing by Merrill Lynch, Pierce, Fenner & Smith Incorporated and any such separate firm for the Company, its directors and officers who signed the Registration Statement and any control persons of the Company shall be designated in writing by the Company. The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff by a court of competent jurisdiction, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an Indemnified Person shall have requested that an Indemnifying Person reimburse the Indemnified Person for reasonable, documented fees and expenses of counsel as contemplated by this paragraph, the Indemnifying Person shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by the Indemnifying Person of such request and (ii) the Indemnifying Person shall not have reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (x) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (y) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person.

(d) Contribution. If the indemnification provided for in paragraph (a) or (b) of this Section 7 is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other from the offering of the Securities or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company on the one hand and the Underwriters on the other in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Underwriters on the other shall be deemed to be in the same respective proportions as the net proceeds (before deducting expenses) received by the Company from the sale of the Securities and the total underwriting discounts and commissions received

by the Underwriters in connection therewith, in each case as set forth in the table on the cover of the Prospectus, bear to the aggregate offering price of the Securities. The relative fault of the Company on the one hand and the Underwriters on the other shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

(e) Limitation on Liability. The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (d) of this Section 7. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (d) of this Section 7 shall be deemed to include, subject to the foregoing limitations, any reasonable, documented legal or other expenses reasonably incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this Section 7, in no event shall an Underwriter be required to contribute any amount in excess of the amount by which the total underwriting discounts and commissions received by such Underwriter with respect to the offering of the Securities exceeds the amount of any damages that such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations to contribute pursuant to this Section 7 are several in proportion to their respective purchase obligations hereunder and not joint.

(f) Non-Exclusive Remedies. The remedies provided for in this Section 7 are not exclusive and shall not limit any rights or remedies that may otherwise be available to any Indemnified Person at law or in equity.

8. Termination. This Agreement may be terminated in the absolute discretion of the Representative, by notice to the Company, if after the execution and delivery of this Agreement and on or prior to the Closing Date (i) trading generally shall have been suspended or materially limited on or by any of the New York Stock Exchange, the NASDAQ Stock Market or the over-the-counter market; (ii) trading of any securities issued or guaranteed by the Company shall have been suspended on any exchange or in any over-the-counter market; (iii) a general moratorium on commercial banking activities shall have been declared by federal or New York State authorities or a material disruption in commercial banking or securities settlement or clearance services in the United States shall have occurred; or (iv) there shall have occurred any outbreak or escalation of hostilities or any change in financial markets or any calamity or crisis, either within or outside the United States, that, in the judgment of the Representative, is material and adverse and makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Prospectus.

9. Defaulting Underwriter. (a) If, on the Closing Date, any Underwriter defaults on its obligation to purchase the Securities that it has agreed to purchase hereunder, the non-defaulting Underwriters may in their discretion arrange for the purchase of such Securities by other persons satisfactory to the Company on the terms contained in this Agreement. If, within 36 hours after any such default by any Underwriter, the non-defaulting Underwriters do not arrange for the purchase of such

Securities, then the Company shall be entitled to a further period of 36 hours within which to procure other persons reasonably satisfactory to the non-defaulting Underwriters to purchase such Securities on such terms. If other persons become obligated or agree to purchase the Securities of a defaulting Underwriter, either the non‑defaulting Underwriters or the Company may postpone the Closing Date for up to five full business days in order to effect any changes that in the opinion of counsel for the Company or counsel for the Underwriters may be necessary in the Registration Statement and the Prospectus or in any other document or arrangement, and the Company agrees to promptly prepare any amendment or supplement to the Registration Statement and the Prospectus that effects any such changes. As used in this Agreement, the term “Underwriter” includes, for all purposes of this Agreement unless the context otherwise requires, any person not listed in Schedule 1 hereto that, pursuant to this Section 9, purchases Securities that a defaulting Underwriter agreed but failed to purchase.

(b) If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) of this Section 9, the aggregate principal amount of such Securities that remains unpurchased does not exceed one-eleventh of the aggregate principal amount of all the Securities, then the Company shall have the right to require each non-defaulting Underwriter to purchase the principal amount of Securities that such Underwriter agreed to purchase hereunder plus such Underwriter’s pro rata share (based on the principal amount of Securities that such Underwriter agreed to purchase hereunder) of the Securities of such defaulting Underwriter or Underwriters for which such arrangements have not been made.

(c) If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) of this Section 9, the aggregate principal amount of such Securities that remains unpurchased exceeds one-eleventh of the aggregate principal amount of all the Securities, or if the Company shall not exercise the right described in paragraph (b) of this Section 9, then this Agreement shall terminate without liability on the part of the non-defaulting Underwriters. Any termination of this Agreement pursuant to this Section 9 shall be without liability on the part of the Company, except that the Company will continue to be liable for the payment of expenses as set forth in Section 10 hereof and except that the provisions of Section 7 hereof shall not terminate and shall remain in effect.

(d) Nothing contained herein shall relieve a defaulting Underwriter of any liability it may have to the Company or any non-defaulting Underwriter for damages caused by its default.

10. Payment of Expenses. (a) Whether or not the transactions contemplated by this Agreement are consummated or this Agreement is terminated, the Company will pay or cause to be paid all costs and expenses incident to the performance of its obligations hereunder, including without limitation, (i) the costs incident to the authorization, issuance, sale, preparation and delivery of the Securities and any taxes payable in that connection; (ii) the costs incident to the preparation, printing and filing under the Securities Act of the Registration Statement, the Preliminary Prospectus, any Issuer Free Writing Prospectus, any Time of Sale Information and the Prospectus (including all exhibits, amendments and supplements thereto in connection therewith) and the distribution thereof; (iii) the costs of reproducing and distributing each of the Transaction Documents; (iv) the documented, reasonable fees and expenses of the Company’s counsel and independent accountants; (v) the fees and expenses incurred in connection with the registration or qualification and determination of eligibility for

investment of the Securities under the laws of such U.S. jurisdictions as the Representative may designate and the preparation, printing and distribution of a Blue Sky Memorandum (including the related fees and expenses of counsel for the Underwriters); (vi) any fees charged by rating agencies for rating the Securities; (vii) the fees and expenses of the Trustee and any paying agent (including related fees and expenses of any counsel to such parties); (viii) all expenses and application fees incurred in connection with any filing with, and clearance of the offering by, the Financial Industry Regulatory Authority; and (ix) all expenses incurred by the Company in connection with any “road show” presentation to potential investors.

(b) If (i) this Agreement is terminated pursuant to Section 8, (ii) the Company for any reason fails to tender the Securities for delivery to the Underwriters or (iii) the Underwriters decline to purchase the Securities for any reason permitted under this Agreement, other than due to a termination pursuant to Section 9, the Company agrees to reimburse the Underwriters for all reasonable, documented out-of-pocket costs and expenses (including the fees and expenses of their counsel) incurred by the Underwriters in connection with this Agreement and the offering contemplated hereby.

11. Persons Entitled to Benefit of Agreement. This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and the officers and directors and any controlling persons referred to herein, and the affiliates of each Underwriter referred to in Section 7 hereof. Nothing in this Agreement is intended or shall be construed to give any other person any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein. No purchaser of Securities from any Underwriter shall be deemed to be a successor merely by reason of such purchase.

12. Survival. The respective indemnities, rights of contribution, representations, warranties and agreements of the Company and the Underwriters contained in this Agreement or made by or on behalf of the Company or the Underwriters pursuant to this Agreement or any certificate delivered pursuant hereto shall survive the delivery of and payment for the Securities and shall remain in full force and effect, regardless of any termination of this Agreement or any investigation made by or on behalf of the Company or the Underwriters.

13. Certain Defined Terms. For purposes of this Agreement, (a) except where otherwise expressly provided, the term “affiliate” has the meaning set forth in Rule 405 under the Securities Act; (b) the term “business day” means any day other than a day on which banks are permitted or required to be closed in New York City; (c) the term “subsidiary” has the meaning set forth in Rule 405 under the Securities Act; and (d) the term “significant subsidiary” has the meaning set forth in Rule 1-02 of Regulation S-X under the Exchange Act.

14. Patriot Act. In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)), the Underwriters are required to obtain, verify and record information that identifies their respective clients, including the Company, which information may include the name and address of their respective clients, as well as other information that will allow the Underwriters to properly identify their respective clients.

15. Miscellaneous. (a) Authority of the Representative. Any action by the Representative or Underwriters hereunder may be taken by Merrill Lynch, Pierce, Fenner & Smith Incorporated on behalf of the Underwriters, and any such action taken by Merrill Lynch, Pierce, Fenner & Smith Incorporated shall be binding upon the Underwriters.

(b) Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given upon receipt at the addresses set forth in the following sentence. Notices to the Underwriters shall be given to the Representative c/o Merrill Lynch, Pierce, Fenner & Smith Incorporated, 50 Rockefeller Plaza, New York, New York 10020 (fax: 212-901-7897; Attention: High Yield Legal Department; Notices to the Company shall be given to it at 600 Grant Street, Room 1500 and Room 6100, Pittsburgh, PA 15219-2800 (fax: 412-433-2811) (e-mail: rlfruehauf@uss.com), Attention: Richard L. Fruehauf, Deputy General Counsel - Corporate, and Arne Jahn, Treasurer & Chief Risk Officer.

(c) Governing Law. This Agreement and any claim, controversy or dispute arising under or related to this Agreement shall be governed by, and construed in accordance with, the laws of the State of New York.

(d) Submission to Jurisdiction. Each party hereto hereby submits to the exclusive jurisdiction of the U.S. federal and New York state courts in the Borough of Manhattan in The City of New York in any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby. Each party hereto waives any objection which it may now or hereafter have to the laying of venue of any such suit or proceeding in such courts. Each party hereto agrees that final judgment in any such suit, action or proceeding brought in such court shall be conclusive and binding upon it and may be enforced in any court to the jurisdiction of which it is subject by a suit upon such judgment.

(e) Waiver of Jury Trial. Each of the parties hereto hereby waives any right to trial by jury in any suit or proceeding arising out of or relating to this Agreement.

(f) Counterparts. This Agreement may be signed in counterparts (which may include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument.

(g) Amendments or Waivers. No amendment or waiver of any provision of this Agreement, nor any consent or approval to any departure therefrom, shall in any event be effective unless the same shall be in writing and signed by the parties hereto.

(h) Headings. The headings herein are included for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of, this Agreement.

If the foregoing is in accordance with your understanding, please indicate your acceptance of this Agreement by signing in the space provided below.

Very truly yours,

UNITED STATES STEEL CORPORATION

By:/s/ Arne Jahn

Name: Arne Jahn

Title: Treasurer & Chief Risk Officer

Confirmed and accepted as of the
date set forth on the first page hereof

Merrill Lynch, Pierce, Fenner & Smith Incorporated

By/s/ Paul M. Liptak

Authorized Signatory

For itself and on behalf of the

several Underwriters listed

in Schedule 1 hereto.

Schedule 1



Underwriter	Principal Amount of Securities

Merrill Lynch, Pierce, Fenner & Smith Incorporated	$187,000,000
J.P. Morgan Securities LLC	$67,500,000
Barclays Capital Inc.	$48,750,000
Morgan Stanley & Co. LLC	$48,750,000
PNC Capital Markets LLC	$48,750,000
Wells Fargo Securities, LLC	$48,750,000
Goldman Sachs & Co. LLC	$26,250,000
BMO Capital Markets Corp.	$31,875,000
Commerz Markets LLC	$31,875,000
Scotia Capital (USA) Inc.	$31,875,000
SunTrust Robinson Humphrey, Inc.	$31,875,000
Citigroup Global Markets Inc	$22,500,000
ING Financial Markets LLC	$22,500,000
SG Americas Securities, LLC	$22,500,000
BNY Mellon Capital Markets, LLC	$13,125,000
Citizens Capital Markets, Inc.	$13,125,000
Credit Suisse Securities (USA) LLC	$13,125,000
The Huntington Investment Company	$13,125,000
RBC Capital Markets, LLC	$13,125,000
U.S. Bancorp Investments, Inc.	$13,125,000
Total	$750,000,000

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Schedule 2


•	Pricing Term Sheet, dated August 1, 2017, relating to the Securities and attached as Schedule 3 hereto.

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Schedule 3

Filed Pursuant to Rule 433 under the Securities Act of 1933

Issuer Free Writing Prospectus dated August 1, 2017

Relating to Preliminary Prospectus Supplement dated July 31, 2017

Registration Statement No. 333-209914

PRICING TERM SHEET

United States Steel Corporation

$750.0 million aggregate principal amount of

6.875% Senior Notes due 2025 (the “notes”)

The information in this pricing term sheet should be read together with the preliminary prospectus supplement dated July 31, 2017 relating to the offering of the notes ("preliminary prospectus supplement”), including the documents incorporated by reference therein and the related base prospectus dated March 3, 2016, filed pursuant to Rule 424(b) under the Securities Act of 1933, as amended.



Issuer:	United States Steel Corporation (“USS”)
Title of securities:	6.875% Senior Notes due 2025
Principal amount:	$750.0 million
Coupon:	6.875%
Maturity date:	August 15, 2025
Price to public:	100% of principal amount plus accrued interest, if any, from August 4, 2017
Yield to maturity:	6.875%
Interest payment dates:	February 15 and August 15, beginning February 15, 2018
Interest payment record dates:	February 1 and August 1 of each year
Mandatory redemption:	None

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Optional redemption:	USS may redeem the notes, in whole or in part, at its option at any time and from time to time prior to August 15, 2020 at a price equal to the greater of (i) 100% of the principal amount of the notes to be redeemed or (ii) the sum of the present values of the redemption price of the notes to be redeemed if they were redeemed on August 15, 2020 and all required interest payments due on such notes through August 15, 2020, exclusive of interest accrued to the date of redemption, discounted to the date of redemption on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the applicable Treasury Yield plus 50 basis points, plus accrued and unpaid interest, if any, to, but excluding, the date of redemption. On or after August 15, 2020, USS may redeem the notes, in whole or in part, at its option at any time and from time to time at the redemption prices specified below (expressed as percentages of principal amount), plus accrued and unpaid interest, if any, to, but excluding, the date of redemption, if redeemed during the twelve-month period beginning on August 15 of each of the years indicated below: On or after: Price: 2020 103.438% 2021 101.719% 2022 and thereafter 100.000% At any time prior to August 15, 2020, USS may also redeem up to 35% of the original aggregate principal amount of the notes with the proceeds of certain equity offerings at a redemption price equal to 106.875% of the principal amount of the notes, together with accrued and unpaid interest, if any, to, but excluding, the date of redemption.
Change of control repurchase event:	If a change of control repurchase event occurs, USS will be required to make an offer to repurchase all outstanding notes at a price in cash equal to 101% of the principal amount of the notes, plus any accrued and unpaid interest to but not including the repurchase date.
Pricing date:	August 1, 2017
Closing date:	August 4, 2017 (T+3)
Joint book-running managers:	Merrill Lynch, Pierce, Fenner & Smith Incorporated
	J.P. Morgan Securities LLC
	Barclays Capital Inc. Morgan Stanley & Co. LLC PNC Capital Markets LLC Wells Fargo Securities, LLC Goldman Sachs & Co. LLC
Co-Managers:	BMO Capital Markets Corp. Commerz Markets LLC Scotia Capital (USA) Inc. SunTrust Robinson Humphrey, Inc. Citigroup Global Markets Inc ING Financial Markets LLC SG Americas Securities, LLC BNY Mellon Capital Markets, LLC Citizens Capital Markets, Inc. Credit Suisse Securities (USA) LLC The Huntington Investment Company RBC Capital Markets, LLC U.S. Bancorp Investments, Inc.
CUSIP/ISIN:	912909 AM0 / US912909AM02

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Ratings:	Moody’s: Caa1 S&P: B Investors are cautioned that a security rating is not a recommendation to buy, sell or hold securities, that it is subject to revision or withdrawal at any time by the assigning rating organization, and that each rating should be evaluated independently of any other rating.
Use of proceeds:	The net proceeds from the sale of the notes in this offering are estimated to be approximately $737 million, after deducting underwriting discounts and expenses payable by USS. USS intends to use the net proceeds from this offering, together with cash on hand, for the redemption of all of its 7.00% Senior Notes due 2018, its 6.875% Senior Notes due 2021, and its 7.50% Senior Notes due 2022 and the payment of related fees and expenses.
Other developments:	On August 1, 2017, USS issued a press release and filed a Current Report on Form 8-K regarding an incident at its Great Lakes Works facility, which USS does not believe will have a material impact on its financial condition or the results of its operations. The press release stated: Earlier today, there was an incident at U. S. Steel's Great Lakes Works in the facility's Hot Strip Mill. Five employees were transported to local hospitals for treatment. Two remain hospitalized at this time. One employee was treated and released at the plant's on-site medical care facility. Due to privacy laws, we cannot provide any additional information about the employees who were injured or their conditions. At this time, the scene is secure and all other employees have been accounted for. Operations at the Hot Strip Mill remain down, but additional operations at Great Lakes Works have not been affected. We do not anticipate any impact on customer shipments as we have additional Hot Strip Mill capacity at other domestic U. S. Steel facilities, if needed. An investigation into the incident is underway, and we will work closely with the United Steelworkers and relevant government agencies throughout the process. We have also activated our Employee Assistance Program to offer its services to the injured employees and their families, as well as the coworkers of those injured. No further details regarding the incident are available at this time. Our thoughts are with our injured employees, their families and their coworkers at Great Lakes Works.

USS has filed a registration statement including a prospectus and a preliminary prospectus supplement with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus and preliminary prospectus supplement in that registration statement and other documents USS has filed with the SEC for more complete information about USS and this offering. You may obtain these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, USS, any underwriter or any dealer participating in the offering will arrange to send you the prospectus and the preliminary prospectus supplement if you request them from Merrill Lynch, Pierce, Fenner & Smith Incorporated by telephone at 1-800-294-1322 or email: dg.prospectus_requests@baml.com; J.P. Morgan Securities LLC by telephone at 1-800-245-8812 or e-mail: hy_syndicate@restricted.chase.com; Barclays Capital Inc. by telephone at 1-888-603-5847 or e-mail: barclaysprospectus@broadridge.com; Morgan Stanley & Co. LLC by telephone at 1-866-718-1649 or e-mail: prospectus@morganstanley.com; PNC Capital Markets LLC by telephone at 1-412-249-0104; Wells Fargo Securities, LLC by telephone at 1-800-645-3751 Opt 5 or e-mail: wfscustomerservice@wellsfargo.com; or Goldman Sachs & Co. LLC by telephone at 1-866-471-2526 or e-mail: prospectus-ny@ny.email.gs.com.

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Annex A

Designated Subsidiaries of the Company



Entity	Jurisdiction of Organization

U. S. Steel Tubular Products, Inc.	Delaware
USS Portfolio Delaware, Inc.	Delaware
U. S. Steel Košice, s.r.o	Slovak Republic
U. S. Steel Oilwell Services, LLC	Delaware
U. S. Steel Seamless Tubular Operations, LLC	Texas
United States Steel International, Inc.	New Jersey
USS Galvanizing, Inc.	Delaware
Grant Assurance Corporation	Vermont
U. S. Steel Holdings, Inc.	Delaware

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Annex B

Form of Opinion and Negative Assurance Statement of Counsel for the Company

1.The Company is a corporation validly existing and in good standing under the laws of the State of Delaware and has all requisite corporate power and authority to own, lease and operate its properties and to carry on its business as now being conducted as described in the Registration Statement, the Time of Sale Information and the Prospectus.

2.USS Portfolio is a corporation validly existing and in good standing under the laws of the State of Delaware and has all requisite corporate power and authority to own or lease, as the case may be, and operate its properties and to conduct its business as described in the Registration Statement, the Time of Sale Information and the Prospectus.

3.The Company has all requisite corporate power and authority to execute and deliver the Underwriting Agreement and to perform its obligations thereunder. The execution, delivery and performance of the Underwriting Agreement by the Company has been duly authorized by all necessary corporate actions on the part of the Company. The Underwriting Agreement has been duly and validly executed and delivered by the Company.

4.The Company has all requisite corporate power and authority to execute and deliver the Securities. The execution and delivery of the Securities by the Company has been duly authorized by all necessary corporate action on the part of the Company. The Securities have been duly and validly executed and delivered by the Company and (assuming the due authentication thereof by the Trustee) constitute valid and legally binding obligations of the Company enforceable against the Company in accordance with their terms and will be entitled to the benefits of the Indenture.

5.The Company has all requisite corporate power and authority to execute and deliver the Indenture and to perform its obligations thereunder. The execution, delivery and performance of the Indenture by the Company has been duly authorized by all necessary corporate action on the part of the Company. The Indenture has been duly qualified under the Trust Indenture Act. The Indenture has been duly and validly executed and delivered by the Company and (assuming the due execution thereof by the Trustee) constitutes the legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms.

6.No consent, approval, waiver, license or authorization or other action by or filing with any New York or federal governmental or regulatory authority or court or any Delaware governmental or regulatory authority or court under the DGCL is required in connection with the execution and delivery by the Company of the Underwriting Agreement, the Indenture and the Securities, the consummation by the Company of the transactions contemplated thereby or the performance by the Company of its obligations thereunder, except as needed for compliance with state securities or blue sky laws, as to which we express no opinion in this paragraph.

7.The execution and delivery by the Company of the Indenture, the Securities and the Underwriting Agreement and performance of its obligations thereunder will not conflict with, constitute a default under, or violate (i) any of the terms, conditions or provisions of the Organizational Documents of the Company, (ii) any of the terms, conditions or provisions of the Material Contracts, (iii) any Applicable Law applicable to the Company (other than federal and state securities or blue sky laws, as to which we express no opinion in this paragraph), or (iv) any judgment, writ, injunction, decree, order or ruling of any court or governmental authority binding on the Company of which we are aware.

8.The statements set forth in the Time of Sale Information and the Prospectus under the captions “Description of the Notes” and “Description of the Debt Securities” insofar as they purport to constitute a summary of the terms of the Securities and the Indenture, are accurate in all material respects.

9.The statements in the Time of Sale Information and the Prospectus under the caption “Certain U.S. Federal Income Tax Considerations,” insofar as they constitute statements of U.S. federal income tax law or

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legal conclusions with respect thereto, and subject to the limitations set forth therein, fairly summarize the matters referred to therein in all material respects.

10.The Company is not, nor immediately after the sale of the Securities and the application of the proceeds from such sale (as described in the Time of Sale Information and the Prospectus under the caption “Use of Proceeds”) will be, an “investment company” as such term is defined in the Investment Company Act of 1940, as amended.

11.The Registration Statement, the Preliminary Prospectus, each Issuer Free Writing Prospectus contained in the Time of Sale Information and the Prospectus, in each case, excluding the documents incorporated therein by reference, and any further amendments and supplements thereto, as applicable, made by the Company prior to the Closing Date (other than the financial statements and related schedules and other financial data included therein, as to which we express no opinion) comply as to form in all material respects with the requirements of the Securities Act and the Trust Indenture Act, as applicable; it being understood, however, that we express no view with respect to Regulation S-T promulgated under the Securities Act.

12.The documents incorporated by reference in the Registration Statement, the Preliminary Prospectus and the Prospectus, at the time they were filed with the Commission, complied as to form in all material respects with the requirements of the Exchange Act.

13.The Registration Statement was automatically effective upon filing with the Commission under the Securities Act on March 3, 2016. To our knowledge, the Company has not received from the Commission any notice pursuant to Rule 401(g)(2) under the Securities Act objecting to the Company’s use of the automatic shelf registration form. To our knowledge, no stop order suspending the effectiveness of the Registration Statement has been issued under the Securities Act and no proceedings for such purpose have been instituted or are pending or are contemplated or threatened by the Commission. Any required filing of the Preliminary Prospectus, the Prospectus and any supplement thereto pursuant to Rule 424(b) under the Securities Act has been made in the manner and within the time period required by such Rule 424(b). The required filing of each Issuer Free Writing Prospectus contained in the Time of Sale Information pursuant to Rule 433 under the Securities Act has been made in the manner and within the time period required by such Rule 433.

14.To our knowledge, except as described in each of the Time of Sale Information and Prospectus, there are no legal, governmental or regulatory investigations, actions, suits or proceedings pending to which the Company or any of its subsidiaries is or may be a party or to which any property, right or asset of the Company or any of its subsidiaries is or may be the subject which, individually or in the aggregate, if determined adversely to the Company or any of its subsidiaries, could reasonably be expected to have a Material Adverse Effect; and no such investigations, actions, suits or proceedings are threatened or, to our knowledge, contemplated by any governmental or regulatory authority or threatened by others.

15.Neither the issuance and sale of the Securities nor the application of the proceeds thereof by the Company as described in the Registration Statement, the Time of Sale Information and the Prospectus will violate Regulation T, U or X of the Board of Governors of the Federal Reserve System.

Subject to the foregoing, on the basis of the information we gained in the course of performing the services referred to above, we advise you that nothing has come to our attention that caused us to believe that (i) the Registration Statement (other than the financial statements, schedules and other financial data contained or incorporated by reference therein or omitted therefrom, as to which we express no view), as of the time it became effective or is deemed to have become effective under Section 11(d) of the Act and Rule 430(B) thereunder, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading, (ii) the Time of Sale Information (other than the financial statements, schedules and other financial data contained or incorporated by reference therein or omitted therefrom, as to which we express no view), as of the Time of Sale, contained any untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading or (iii) the Prospectus (other than the financial statements, schedules and other financial data contained or incorporated by reference therein or omitted therefrom, as to which we express no view), as of its date and the

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date hereof, contained or contains an untrue statement of a material fact or omitted or omits to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

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