Chart Industries 8K Announces Proposed Offering of $225 Million of Convertible Senior Subordinated Notes Due 2024 | GTLS 6 Nov 17

Exhibit 1.1

EXECUTION VERSION

$225,000,000

CHART INDUSTRIES, INC.

1.00% CONVERTIBLE SENIOR SUBORDINATED NOTES DUE 2024

PURCHASE AGREEMENT

October 31, 2017

Morgan Stanley & Co. LLC

1585 Broadway

New York, New York 10036

J.P. Morgan Securities LLC

383 Madison Avenue

New York, New York 10179

As Representatives of the Initial Purchasers

Ladies and Gentlemen:

Chart Industries, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several purchasers named in Schedule I hereto (the “Initial Purchasers”), for whom Morgan Stanley & Co. LLC and J.P. Morgan Securities LLC are acting as representatives (the “Representatives”), $225,000,000 in aggregate principal amount of the Company’s 1.00% Convertible Senior Subordinated Notes due 2024 (the “Initial Securities”).

The Initial Securities will be issued pursuant to the provisions of an indenture, to be dated as of the Closing Date (as defined below) (the “Indenture”), between the Company and Wells Fargo Bank, National Association, as trustee (the “Trustee”).

In addition, the Company has granted to the Initial Purchasers an option to purchase up to an additional $33,750,000 in aggregate principal amount of its 1.00% Convertible Senior Subordinated Notes due 2024 on the terms and conditions and for the purposes set forth in Section 2 (the “Option Securities” and, together with the Initial Securities, the “Securities”). The Securities will be convertible into duly and validly issued, fully paid andnon-assessable shares of common stock, par value $0.01 per share (the “Common Stock”), of the Company (such shares, the “Conversion Shares”), cash or a combination of cash and Conversion Shares, at the Company’s election, on the terms, and subject to the conditions, set forth in the Indenture.

In connection with the offering of the Initial Securities, the Company is separately entering into convertible note hedge and warrant transactions with certain financial institutions, including one or more of the Initial Purchasers (the “Call Spread Counterparties”) pursuant to convertible note hedge confirmations (the “Base Bond Hedge Confirmations”) and warrant confirmations (the “Base Warrant Confirmations” and, together with the Base Bond Hedge Confirmations, the “Base Call Spread Confirmations”), respectively, each to be dated the date hereof, and in connection with any exercise by the Initial Purchasers of their option to purchase any Option Securities, the Company and the Call Spread Counterparties expect to enter into additional convertible note hedge and warrant transactions pursuant to additional convertible note hedge confirmations (the “Additional Bond Hedge Confirmations”)

and additional warrant confirmations (the “Additional Warrant Confirmations” and, the Additional Warrant Confirmations together with the Additional Bond Hedge Confirmations, the “Additional Call Spread Confirmations”), respectively, each to be dated the date on which the Initial Purchasers exercise their option to purchase such Option Securities. We refer to the Base Call Spread Confirmations and the Additional Call Spread Confirmations collectively herein as the “Call Spread Confirmations.”

The Company understands that the Initial Purchasers propose to make an offering of the Securities on the terms and in the manner set forth herein and in the Time of Sale Memorandum (as defined herein) and agrees that the Initial Purchasers may resell, subject to the conditions set forth herein, all or a portion of the Securities to purchasers (the “Subsequent Purchasers”) on the terms set forth in the Time of Sale Memorandum (the first time when sales of the Securities are made is referred to as the “Time of Sale”). The Securities will be offered without being registered under the Securities Act of 1933, as amended (the “Securities Act”), to persons reasonably believed to be qualified institutional buyers in compliance with the exemption from registration provided by Rule 144A under the Securities Act (“Rule 144A”). Pursuant to the terms of the Securities and the Indenture, investors who acquire Securities shall be deemed to have agreed that Securities may only be resold or otherwise transferred, after the date hereof, if such Securities are registered for sale under the Securities Act or if an exemption from the registration requirements of the Securities Act is available (including the exemptions afforded by Rule 144A). The Company hereby confirms that it has authorized the use of the Time of Sale Memorandum, the Final Memorandum (as defined herein) by the Initial Purchasers in connection with the offer and sale of the Securities by the Initial Purchasers.

In connection with the sale of the Securities, the Company has prepared a preliminary offering memorandum, dated October 30, 2017 (the “Preliminary Memorandum”), and prepared a pricing supplement, dated October 31, 2017 (the “Pricing Supplement”), describing the terms of the Securities, each for use by the Initial Purchasers in connection with their solicitation of offers to purchase the Securities. For purposes of this Agreement, “Additional Written Offering Communication” means any written communication (as defined in Rule 405 under the Securities Act) that constitutes an offer to sell or a solicitation of an offer to buy the Securities other than the Preliminary Memorandum, the Pricing Supplement or the Final Memorandum; “Time of Sale Memorandum”means the Preliminary Memorandum together with the Pricing Supplement and each Additional Written Offering Communication or other information, if any, identified in Schedule II hereto under the caption Time of Sale Memorandum; and “General Solicitation” means any offer to sell or solicitation of an offer to buy the Securities by any form of general solicitation or advertising (as those terms are used in Regulation D under the Securities Act). Promptly after this Agreement is executed and delivered, the Company will prepare and deliver to each Initial Purchaser a final offering memorandum, dated the date hereof (the “Final Memorandum”). As used herein, the terms “Preliminary Memorandum,” “Time of Sale Memorandum” and “Final Memorandum” shall include the documents, if any, incorporated by reference therein prior to the Time of Sale. The terms “supplement”, “amendment” and “amend” as used herein with respect to the Preliminary Memorandum, the Time of Sale

Memorandum, the Final Memorandum or any Additional Written Offering Communication shall include all documents subsequently filed by the Company with the Securities and Exchange Commission (the “Commission”) pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act,” which term, as used herein, includes the rules and regulations of the Commission promulgated thereunder as in effect as of the Time of Sale), that are deemed to be incorporated by reference therein.

1.Representations and Warranties. The Company hereby represents and warrants to, and agrees with each Initial Purchaser that:

(a) (i) Each document, if any, filed or to be filed pursuant to the Exchange Act and incorporated by reference in the Preliminary Memorandum, the Time of Sale Memorandum or the Final Memorandum conformed when so filed with the Commission in all material respects with the requirements of the Exchange Act, (ii) the Time of Sale Memorandum at the Time of Sale did not, and at the Closing Date (as defined in Section 4) 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, (iii) any Additional Written Offering Communication prepared, used or referred to by the Company, when considered together with the Time of Sale Memorandum, at the Time of Sale did 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 and (iv) the Final Memorandum as of its date and at the Closing Date 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, except that the representations and warranties set forth in this paragraph do not apply to statements in or omissions from the Time of Sale Memorandum, the Final Memorandum, or Additional Written Offering Communication based upon information relating to any Initial Purchaser furnished to the Company in writing by such Initial Purchaser through you expressly for use therein.

(b) Except for the Additional Written Offering Communications, if any, identified in Schedule II hereto, including electronic road shows and furnished to you before first use, the Company has not prepared, used or referred to, and will not, without your prior consent, prepare, use or refer to, any Additional Written Offering Communication.

(c) The Company has been duly incorporated, is validly existing as a corporation in good standing under the laws of the State of Delaware, has the corporate power and authority (i) to own its property and to conduct its business as described in the Time of Sale Memorandum, except where the failure to have such power or authority would not, individually or in the aggregate, have a material adverse effect on the business, properties, management, financial position, stockholders’ equity 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 (a “Material Adverse Effect”) and (ii) to enter into and perform its obligations under each of this Agreement, the Indenture, the Call Spread Confirmations and the Securities (together, the “Transaction Documents”). The Company is duly qualified to transact business and is in good standing in each jurisdiction in which the conduct of its business or its ownership or leasing of property requires such qualification, except to the extent that the failure to be so qualified or be in good standing would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect.

(d) Each subsidiary of the Company listed in Schedule IV to this Agreement (which are the only “significant subsidiaries,” as defined in Rule1-02(w) of RegulationS-X under the Exchange Act, of the Company (the “Significant Subsidiaries”)) (i) has been duly organized or formed, as applicable, is validly existing as a corporation, limited liability company or partnership, as applicable, in good standing (to the extent such concept is recognized or applicable under the laws of such Significant Subsidiary’s jurisdiction) under the laws of the jurisdiction of its organization or formation, as applicable, except to the extent that the failure to be in good standing (to the extent such concept is recognized or applicable under the laws of such Significant Subsidiary’s jurisdiction) would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, (ii) has the corporate, limited liability company or partnership power, as applicable, and authority to own its property and to conduct its business as described in the Time of Sale Memorandum and to enter into and perform its obligations under each of the Transaction Documents, as applicable, except where the failure to have such power or authority would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. Each Significant Subsidiary of the Company is duly qualified to transact business and is in good standing (to the extent such concept is recognized or applicable under the laws of such Significant Subsidiary’s jurisdiction) in each jurisdiction in which the conduct of its business or its ownership or leasing of property requires such qualification, except to the extent that the failure to be so qualified or be in good standing (to the extent such concept is recognized or applicable under the laws of such Significant Subsidiary’s jurisdiction) would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; except as disclosed in the Time of Sale Memorandum, all of the issued shares of capital stock or other equity interests of each subsidiary of the Company have been duly and validly authorized and issued, are fully paid andnon-assessable and are owned directly or indirectly by the Company, free and clear of all liens, encumbrances, equities or claims of any third party.

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

(f) The Securities have been duly authorized by the Company and, when executed and authenticated in accordance with the provisions of the Indenture, and issued and delivered to and paid for by the Initial Purchasers in accordance with the terms of this Agreement, will be valid and binding

obligations of the Company, enforceable in accordance with their terms, except as enforceability may be limited by applicable bankruptcy, insolvency or similar laws affecting creditors’ rights generally or by equitable principles relating to enforceability (collectively, the “Enforceability Exceptions”), and will be entitled to the benefits of the Indenture pursuant to which such Securities are to be issued. The Base Call Spread Confirmations have been, and any Additional Call Spread Confirmations on the date or dates that the Purchasers exercise their right to purchase the relevant Optional Securities will have been, duly authorized, executed and delivered by the Company and, assuming due execution and delivery thereof by the Counterparties, constitute, or will constitute, as the case may be, valid and binding agreements of the Company enforceable against the Company in accordance with their terms, except as enforceability may be limited by the Enforceability Exceptions.

(g) The Indenture has been duly authorized by the Company and, on the Closing Date, will have been duly executed and delivered by the Company, and will constitute a valid and binding agreement of, the Company, enforceable in accordance with its terms, except as enforceability may be limited by the Enforceability Exceptions.

(h) The Securities to be purchased by the Initial Purchasers from the Company will on the Closing Date be in the form contemplated by the Indenture. The Securities and the Indenture will conform in all material respects to the descriptions thereof in the Time of Sale Memorandum and the Final Memorandum.

(i) The Company’s authorized capitalization is as set forth in the Time of Sale Memorandum and the Final Memorandum under the caption “Capitalization” (other than for subsequent issuances of capital stock, if any, pursuant to employee benefit plans described in the Time of Sale Memorandum and the Final Memorandum or upon exercise of outstanding options or warrants described in the Time of Sale Memorandum and the Final Memorandum). The maximum number of Conversion Shares issuable upon conversion of the Securities (assuming full physical settlement of the Securities upon conversion and the maximum conversion rate under any “make whole” adjustment applies) and the maximum number of shares of Common Stock issuable under the Base Warrant Confirmations and any Additional Warrant Confirmations (the “Warrant Shares”) have been duly authorized and reserved for issuance by all necessary corporate action and such Conversion Shares or Warrant Shares, when issued in accordance with the terms of the Securities or in accordance with the Base Warrant Confirmations or the Additional Warrant Confirmations, as applicable, will be validly issued, fully paid andnon-assessable, will conform in all material respects to the description thereof contained in the Time of Sale Memorandum, will be issued in compliance in all material respects with federal and state securities laws and will be free of statutory and contractual preemptive rights, rights of first refusal and similar rights.

(j) Neither the Company nor any of its Significant Subsidiaries is in violation of its charter, bylaws or other constitutive document. Neither the Company nor any of its subsidiaries is in default (or, with the giving of notice or lapse of time, would be in default) (“Default”) under any indenture, mortgage, loan or credit agreement, note, contract, franchise, lease or other instrument to which the Company or any of its subsidiaries is a party or by which it or any of them may be bound, or to which any of the property or assets of the Company or any of its subsidiaries is subject (each, an “Existing Instrument”), except for such Defaults as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. The Company’s execution, delivery and performance of this Agreement, the Call Spread Confirmations and the Indenture, and the issuance and delivery of the Securities, and consummation of the transactions contemplated hereby and thereby and by the Time of Sale Memorandum and the Final Memorandum (including the issuance of the Conversion Shares and any Warrant Shares) (i) will not result in any violation of the provisions of the charter, bylaws or other constitutive document of the Company or any of its Significant Subsidiaries, (ii) will not conflict with or constitute a breach of, or Default or a Debt Repayment Triggering Event (as defined below) under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or any of its subsidiaries pursuant to, or require the consent of any other party to, any Existing Instrument, and (iii) will not result in any violation of any law, administrative regulation or administrative or court decree applicable to the Company or any subsidiary, except, in the case of clauses (ii) and (iii) above, for such conflicts, violations, breaches, Defaults, liens, charges or encumbrances that would not, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect. As used herein, a “Debt Repayment Triggering Event” means any event or condition which gives, or with the giving of notice or lapse of time would give, the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder’s behalf) the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company or any of its subsidiaries.

(k) No consent, approval, authorization or other order of, or registration, filing or qualification with, any court or other governmental or regulatory authority or agency is required for the Company’s execution, delivery and performance of this Agreement or the Indenture, or the issuance and delivery of the Securities, or consummation of the transactions contemplated hereby and thereby and by the Time of Sale Memorandum and Final Memorandum (including the issuance of the Conversion Shares) or under the Call Spread Confirmations, except such as have been obtained or made by the Company and are in full force and effect under the Securities Act, securities laws of the several states of the United States or provinces of Canada in connection with the purchase and distribution of the Securities by the Initial Purchasers and as may be required for the listing of the Conversion Shares and Warrant Shares on The NASDAQ Global Select Market (“NASDAQ”).

(l) There has not occurred any material adverse change, or any development involving a prospective material adverse change, in the condition, financial or otherwise, or in the earnings, business or operations of the Company and its subsidiaries, taken as a whole, from that set forth in the Time of Sale Memorandum provided to prospective purchasers of the Securities.

(m) Subsequent to the respective dates as of which information is given in each of the Time of Sale Memorandum and the Final Memorandum, (i) the Company and its subsidiaries have not incurred any liability or obligation, direct or contingent, that is material to the Company and its subsidiaries, taken as a whole, nor entered into any transaction material to the Company and its subsidiaries, taken as a whole; (ii) the Company has not purchased any of its outstanding capital stock, nor declared, paid or otherwise made any dividend or distribution of any kind on its capital stock other than ordinary and customary dividends; and (iii) there has not been any material change in the capital stock, short term debt or long term debt of the Company and its subsidiaries, except in each case as described in each of the Time of Sale Memorandum and the Final Memorandum, respectively.

(n) Other than proceedings described in the Time of Sale Memorandum and the Final Memorandum, there are no legal or governmental proceedings pending or, to the Company’s knowledge, threatened to which the Company or any of its subsidiaries is a party or to which any of the properties of the Company or any of its subsidiaries is the subject that, if determined adversely to the Company or any of its subsidiaries, would, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. No labor dispute with the employees of the Company or any of its subsidiaries, or with the employees of any principal supplier of the Company, exists or, to the Company’s knowledge, is threatened or imminent, except as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(o) (i) Except as disclosed in the Time of Sale Memorandum and Final Memorandum, the Company and its subsidiaries (x) are, and at all prior times were, in compliance with any and all applicable federal, state, local and foreign laws, rules, regulations, requirements, decisions and orders relating to the protection of human health or safety, the environment, natural resources, hazardous or toxic substances or wastes, pollutants or contaminants (collectively, “Environmental Laws”), (y) have received and are in compliance with all permits, licenses, certificates or other authorizations or approvals required of them under applicable Environmental Laws to conduct their respective businesses, and (z) have not received notice of any actual or potential liability under or relating to any Environmental Laws, including for the investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants, and have no knowledge of any event or condition that would reasonably be expected to result in any such notice; (ii) there are no costs or liabilities (other than those accrued in the Company’s financial statements) associated with Environmental Laws of or relating to the Company or its

subsidiaries, except in the case of each of (i) and (ii) above, for any such failure to comply, or failure to receive required permits, licenses or approvals, or cost or liability, as would not, individually or in the aggregate, have a Material Adverse Effect; and (iii) except as described in each of the Time of Sale Memorandum and the Final Memorandum, (x) there are no proceedings that are pending, or to the knowledge of the Company, contemplated, against the Company or any of its subsidiaries under any Environmental Laws in which a governmental entity is also a party, other than such proceedings regarding which it is reasonably believed no monetary sanctions of $250,000 or more will be imposed, (y) the Company and its subsidiaries are not aware of any issues regarding compliance with Environmental Laws, or liabilities or other obligations under Environmental Laws or concerning hazardous or toxic substances or wastes, pollutants or contaminants, that could reasonably be expected to have a material effect on the capital expenditures, earnings or competitive position of the Company and its subsidiaries, and (z) none of the Company and its subsidiaries anticipates material capital expenditures relating to any Environmental Laws.

(p) There has been no storage, generation, transportation, handling, treatment, disposal, discharge, emission, or other release of any kind of toxic wastes or hazardous substances, including, but not limited to, any naturally occurring radioactive materials, brine, drilling mud, crude oil, natural gas liquids and other petroleum materials, by, due to or caused by the Company or any of its subsidiaries (or, to the Company’s knowledge, any other entity (including any predecessor) for whose acts or omissions the Company or any of its subsidiaries is or could reasonably be expected to be liable) upon any of the property now or previously owned or leased by the Company or any of its subsidiaries, or upon any other property, in violation of any Environmental Laws or in a manner or to a location that could reasonably be expected to give rise to any liability under the Environmental Laws, except for any violation or liability which would not, individually or in the aggregate, have a Material Adverse Effect.

(q) The Company is not, and after giving effect to the offering and sale of the Securities, the transactions contemplated by the Call Spread Confirmations and the application of the proceeds thereof as described in the Final Memorandum will not be, required to register as an “investment company” as such term is defined in the Investment Company Act of 1940, as amended (the “Investment Company Act”).

(r) None of the Company, any affiliate (as defined in Rule 501(b) of Regulation D under the Securities Act, an “Affiliate”), or any person acting on its or their behalf (other than the Initial Purchasers, as to whom the Company makes no representation or warranty) has, directly or indirectly, solicited any offer to buy or offered to sell, or will, directly or indirectly, solicit any offer to buy or offer to sell, in the United States or to any United States citizen or resident, any security which is or would be integrated with the sale of the Securities in a manner that would require the Securities to be registered under the Securities Act or offered, solicited offers to buy or sold the Securities by any form of general solicitation or general advertising (as those terms are used in Regulation D under the Securities Act) or in any manner involving a public offering within the meaning of Section 4(a)(2) of the Securities Act.

(s) Subject to compliance by the Initial Purchasers with the procedures set forth in Section 7 hereof, it is not necessary in connection with the offer, sale and delivery of the Securities to the Initial Purchasers and to each Subsequent Purchaser in the manner contemplated by this Agreement and the Time of Sale Memorandum to register the Securities under the Securities Act or to qualify the Indenture under the Trust Indenture Act of 1939 (the “Trust Indenture Act,” which term, as used herein, includes the rules and regulations of the Commission promulgated thereunder).

(t) When issued on the Closing Date, the Securities will be eligible for resale pursuant to Rule 144A and will not be, at the Closing Date, of the same class as securities of the Company listed on a national securities exchange registered under Section 6 of the Exchange Act or quoted in a U.S. automated interdealer quotation system.

(u) (i) None of the Company or its subsidiaries or, to the Company’s knowledge, any director, officer, or employee thereof, affiliate, agent or representative of the Company or of any of its subsidiaries or affiliates, has taken or will take any action in furtherance of an offer, payment, promise to pay, or authorization or approval of the payment, giving or receipt of money, property, gifts or anything else of value, directly or indirectly, to any government official (including any officer or employee of a government or 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) in order to influence official action, or to any person in violation of any applicable anti-corruption laws; (ii) the Company and its subsidiaries and, to the Company’s knowledge, affiliates have conducted their businesses in compliance with applicable anti-corruption laws and have instituted and maintained and will continue to maintain policies and procedures reasonably designed to promote and achieve compliance with such laws and with the representations and warranties contained herein; and (iii) neither the Company nor its subsidiaries will use, directly or indirectly, the proceeds of the offering in furtherance of an offer, payment, promise to pay, or authorization of the payment or giving of money, or anything else of value, to any person in violation of any applicable anti-corruption laws.

(v) The operations of the Company and its subsidiaries are and have been conducted at all times in material compliance with all applicable financial recordkeeping and reporting requirements, including those of the Bank Secrecy Act, as amended by Title III of the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (USA PATRIOT Act), and the applicable anti-money laundering statutes of jurisdictions where the Company and its subsidiaries conduct 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.

(w) (i) None of the Company, any of its subsidiaries, or, to the Company’s knowledge, any director, officer, employee, agent or Affiliate of the Company or any of its subsidiaries, is an individual or entity (“Person”) that is, or is owned or controlled by one or more Persons that are:

(A) the subject of any sanctions administered or enforced by the U.S. Department of Treasury’s Office of Foreign Assets Control, the United Nations Security Council, the European Union, Her Majesty’s Treasury, or other relevant sanctions authority (collectively, “Sanctions”), or

(B) located, organized or resident in a country or territory that is the subject of Sanctions (including, without limitation, Crimea, Cuba, Iran, North Korea, Sudan and Syria).

(ii) The Company will not, directly or indirectly, use the proceeds of the offering contemplated by this Agreement, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other Person:

(A) to fund or facilitate any activities or business of or with any Person or in any country or territory that, at the time of such funding or facilitation, is the subject of Sanctions; or

(B) in any other manner that will result in a violation of Sanctions by any Person (including any Person participating in the offering contemplated by this Agreement, whether as a purchaser, advisor, investor or otherwise).

(iii) In the past 5 years, the Company and its subsidiaries have not knowingly engaged in, are not now knowingly engaged in, and will not engage in, any dealings or transactions with any Person, or in any country or territory, that at the time of the dealing or transaction is or was the subject of Sanctions.

(x) (i) Ernst & Young LLP, which expressed its opinion with respect to the financial statements (which term as used in this Agreement includes the related notes thereto) and supporting schedules included in the Time of Sale Memorandum related to the Company and (ii) BKD, LLP, which expressed its opinion with respect to the financial statements (which term as used in this

Agreement includes the related notes thereto) and supporting schedules included in the Time of Sale Memorandum related to Hudson Products Corporation (the “Target”), each are independent public or certified public accountants within the meaning of the Rules of Professional Conduct/Code of Ethics (or similar rules) and RegulationS-X under the Securities Act and the Exchange Act.

(y) The financial statements, together with the related schedules and notes, of the Company and its consolidated subsidiaries, included or incorporated by reference in the Time of Sale Memorandum present fairly in all material respects the consolidated financial position of the Company and its consolidated subsidiaries as of and at the dates indicated and the results of their operations and the changes in their cash flows for the periods specified. Such financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) applied on a consistent basis throughout the periods covered thereby, except as may be expressly stated in the related notes thereto and, in the case of unaudited, interim financial statements, subject to normalyear-end audit adjustments and the exclusion of footnotes as permitted by the Exchange Act. The statistical and market related data and forward looking statements included in the Time of Sale Memorandum are based on or derived from sources that the Company believes to be reliable and accurate in all material respects and represent their good faith estimates that are made on the basis of data derived from such sources.

(z) The Company and its subsidiaries own or possess, or can acquire on reasonable terms, all material patents, patent rights, licenses, inventions, copyrights, know how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures), trademarks, service marks and trade names currently employed by them in connection with the business now operated by them, and neither the Company nor any of its subsidiaries has received any notice of infringement of or conflict with asserted rights of others with respect to any of the foregoing which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would reasonably be expected to have a Material Adverse Effect.

(aa) The Company and its subsidiaries possess all certificates, authorizations and permits (“permits”) issued by the appropriate federal, state or foreign regulatory authorities necessary to conduct their respective businesses in the manner described in the Time of Sale Memorandum, except for such permits which, if not obtained, would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect. Neither the Company nor any of its subsidiaries has received any notice of proceedings relating to the revocation or modification of any such certificate, authorization or permit which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would reasonably be expected to have a Material Adverse Effect, except as described in the Time of Sale Memorandum.

(bb) The Company and its subsidiaries have good and marketable title in fee simple to all real property and good and marketable title to all personal property owned by them which is material to the business of the Company and its subsidiaries, taken as a whole, in each case free and clear of all liens, encumbrances and defects except such as (i) are described in the Time of Sale Memorandum; (ii) do not materially affect the value of such property and do not materially interfere with the use made and proposed to be made of such property by the Company and its subsidiaries or (iii) would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect; and any real property and buildings held under lease by the Company and its subsidiaries are held by them under valid, subsisting and enforceable leases with such exceptions as are not material and do not materially interfere with the use made and proposed to be made of such property and buildings by the Company and its subsidiaries, in each case except as described in the Time of Sale Memorandum.

(cc) The Company and each of its subsidiaries have filed all income and other material federal, state, local and foreign tax returns required to be filed through the date of this Agreement or have requested extensions thereof (except where the failure to file would not, individually or in the aggregate, have a Material Adverse Effect) and have paid all taxes required to be paid thereon (except for cases in which the failure to file or pay would not, individually or in the aggregate, have a Material Adverse Effect, or, except as currently being contested in good faith and for which reserves required by GAAP have been created in the financial statements of the Company), and no tax deficiency has been determined adversely to the Company or any of its subsidiaries which has had (nor does the Company nor any of its subsidiaries have any notice or knowledge of any tax deficiency which could reasonably be expected to be determined adversely to the Company or its subsidiaries and which would reasonably be expected to have), individually or in the aggregate, a Material Adverse Effect. The Company has made adequate charges, accruals and reserves in accordance with GAAP in the applicable financial statements referred to in Section 1(y) hereof in respect of all federal, state, provincial and foreign income and franchise taxes for all periods as to which the tax liability of the Company or any of its subsidiaries has not been finally determined.

(dd) The Company and each of its subsidiaries are insured by insurers of recognized financial responsibility against such losses and risks and in such amounts as are prudent, reasonable and customary in the businesses in which they are engaged; neither the Company nor any of its subsidiaries has been refused any material insurance coverage sought or applied for; and neither the Company nor any of its subsidiaries has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, except as described in the Time of Sale Memorandum.

(ee) The Company has not taken nor will it take, directly or indirectly, any action designed to or that might be reasonably expected to cause or result in stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Securities.

(ff) The Company and its subsidiaries and their respective officers and directors are in material compliance with the applicable provisions of the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act,” which term, as used herein, includes the rules and regulations of the Commission promulgated thereunder).

(gg) The Company and its subsidiaries maintain a system of accounting controls that is in compliance with the Sarbanes-Oxley Act and is sufficient to provide reasonable assurances that: (i) transactions are executed in accordance with management’s general or specific authorization; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain accountability for assets; (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 existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

(hh) The Company has established and maintains disclosure controls and procedures (as such term is defined in Rules13a-15 and15d-14 under the Exchange Act); such disclosure controls and procedures are designed to ensure that the information required to be disclosed by the Company in the reports it files or will file or submit under the Exchange Act, as applicable, is accumulated and communicated to management of the Company, as appropriate, to allow timely decisions regarding required disclosure to be made and such disclosure controls and procedures are reasonably effective to perform the functions for which they were established subject to the limitations of any such control system; the Company’s auditors and the audit committee of the board of directors of the Company have been advised of: (i) any significant deficiencies or material weaknesses in the design or operation of internal controls which could adversely affect the Company’s ability to record, process, summarize, and report financial data; and (ii) any fraud, whether or not material, that involves management or other employees who have a role in the Company’s internal controls; and since the date of the most recent evaluation of such disclosure controls and procedures, there have been no significant changes in internal controls or in other factors that has materially and adversely affected, or is reasonably likely to materially and adversely affect, internal controls.

(ii) Neither the Company nor any of its subsidiaries nor any agent thereof acting on their behalf has taken, and none of them will take, any action that might cause this Agreement or the issuance or sale of the Securities to violate Regulation T, Regulation U or Regulation X of the Board of Governors of the Federal Reserve System.

(jj) (i) The Company and its subsidiaries and any “employee benefit plan” (as defined under the Employee Retirement Income Security Act of 1974 (as amended, “ERISA,” which term, as used herein, includes the regulations and published interpretations thereunder) established or maintained by the Company and its subsidiaries or their “ERISA Affiliates” (as defined below) are in compliance in all material respects with ERISA. “ERISA Affiliate” means, with respect to the Company or a subsidiary of the Company, any member of any group of organizations described in Section 414 of the Internal Revenue Code of 1986 (as amended, the “Code,” which term, as used herein, includes the regulations and published interpretations thereunder) of which the Company or such subsidiary is a member; (ii) no “reportable event” (as defined under ERISA) has occurred or is reasonably expected to occur with respect to any “employee benefit plan” established or maintained by the Company, its subsidiaries or any of their ERISA Affiliates; (iii) no “employee benefit plan” established or maintained by the Company or its subsidiaries or any of their ERISA Affiliates, if such “employee benefit plan” were terminated, would have any “amount of unfunded benefit liabilities” (as defined under ERISA); (iv) neither the Company or its subsidiaries nor any of their ERISA Affiliates has incurred or reasonably expects to incur any liability under (i) Title IV of ERISA with respect to termination of, or withdrawal from, any “employee benefit plan” or (ii) Sections 412, 4971, 4975 or 4980B of the Code; and (v) each “employee benefit plan” established or maintained by the Company or its subsidiaries or any of their ERISA Affiliates that is intended to be qualified under Section 401(a) of the Code is so qualified and nothing has occurred, whether by action or failure to act, which would cause the loss of such qualification.

(kk) No material labor dispute with the employees of the Company or any of its subsidiaries exists, except as described in the Time of Sale Memorandum, or, to the knowledge of the Company, is imminent, which, individually or in the aggregate, would have a Material Adverse Effect; and the Company is not aware of any existing, threatened or imminent labor disturbance by the employees of any of its principal suppliers, contractors or customers that would, individually or in the aggregate, have a Material Adverse Effect.

(ll) No relationship, direct or indirect, exists between or among any of Company or any affiliate of the Company, on the one hand, and any director, officer, member, stockholder, customer or supplier of the Company or any affiliate of the Company, on the other hand, which is required by the Securities Act to be disclosed in a registration statement on FormS-1 which is not so disclosed in the Time of Sale Memorandum. There are no outstanding loans, advances (except advances for business expenses in the ordinary course of business) or guarantees of indebtedness by the Company or any affiliate of the Company to or for the benefit of any of the officers or directors of the Company or any affiliate of the Company or any of their respective family members.

(mm) The interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Preliminary Memorandum, the Time of Sale Memorandum or the Final Memorandum 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.

(nn) No event of default exists under any contract, indenture, mortgage, loan agreement, note, lease or other agreement or instrument constituting Senior Indebtedness (as defined in the Indenture).

2.Agreements to Sell and Purchase. The Company hereby agrees to issue and sell to the several Initial Purchasers, and each Initial Purchaser, upon the basis of the representations and warranties herein contained, but subject to the conditions hereinafter stated, agrees, severally and not jointly, to purchase from the Company the respective principal amount of Initial Securities set forth in Schedule I hereto opposite its name at a purchase price of 97.875% of the principal amount thereof (the “Purchase Price”).

On the basis of the representations and warranties contained in this Agreement, and subject to its terms and conditions, the Company agrees to sell to the Initial Purchasers, and the Initial Purchasers shall have the option to purchase, severally and not jointly, up to $33,750,000 in aggregate principal amount of Option Securities at the same purchase price as set forth above in this Section 2 for the Initial Securities, plus accrued interest (calculated in the manner set forth in the Indenture), if any, from the Closing Date to the applicable Option Closing Date (as defined below). The option hereby granted may be exercised upon notice by the Representatives to the Company setting forth the aggregate principal amount of Option Securities as to which the option is then being exercised, and the time and date (each such time and date, an “Option Closing Date”) of payment and delivery for such Option Securities;provided,however, that in no event may any Option Closing Date occur (x) after the date that is thirteen (13) days from, and including, the Closing Date; (y) earlier than the Closing Date; or (z) if later than the Closing Date, earlier than the second business day, or later than the fifth business day, after the date on which the option shall have been exercised. If any Option Securities are to be purchased, each Initial Purchaser, severally and not jointly, agrees to purchase from the Company the principal amount of Option Securities (subject to such adjustments to eliminate fractional Securities as you may determine) that bears the same proportion to the total principal amount of Option Securities to be purchased as the total principal amount of Initial Securities.

3.Terms of Offering. The Initial Purchasers have advised the Company that the Initial Purchasers will make an offering of the Securities purchased by the Initial Purchasers hereunder as soon as practicable after this Agreement is entered into as in its judgment is advisable.

4.Payment and Delivery. Payment for the Initial Securities shall be made to the Company in Federal or other funds immediately available in New York City against delivery of such Initial Securities for the respective accounts of the several Initial Purchasers at 10:00 a.m., New York City time, on November 6, 2017. The time and date of such payment are hereinafter referred to as the “Closing Date.” Such delivery and payment shall be made at the offices of Latham & Watkins LLP, 885 Third Avenue, New

York, New York 10022 (or such other place as may be agreed to by the Company and the Representatives). The Company hereby acknowledges that circumstances under which the Representatives may provide notice to postpone the Closing Date as originally scheduled include, but are in no way limited to, any determination by the Company or the Initial Purchasers to recirculate to investors copies of an amended or supplemented Final Memorandum or a delay as contemplated by the provisions of Section 10 hereof.

In addition, in the event that any or all of the Option Securities are purchased by the Initial Purchasers, payment of the purchase price for, and delivery of certificates or security entitlements for, such Option Securities shall be made at the above-mentioned offices, or at such other place as shall be agreed upon by the Representatives and the Company, on each Option Closing Date as specified in the notice from the Representatives to the Company.

The Securities shall be in definitive form or global form, as specified by the Representatives, and registered in such names and in such denominations as the Representatives shall request in writing not later than one full business day prior to the Closing Date. The Securities shall be delivered to the Representatives (or to the Trustee, as custodian for The Depository Trust Company, in the case of Securities in global form) on the Closing Date or Option Closing Date, as applicable, for the respective accounts of the Initial Purchasers, with any transfer taxes payable in connection with the transfer of the Securities to the Initial Purchasers duly paid, against payment of the Purchase Price therefor plus accrued interest, if any, to the date of payment and delivery. Time shall be of the essence, and delivery at the time and place specified in this Agreement is a condition to the obligations of the Initial Purchasers.

5.Conditions to the Initial Purchasers’ Obligations. The several obligations of the Initial Purchasers to purchase and pay for the Securities as provided herein on the Closing Date and any Option Closing Date are subject to the satisfaction or waiver, as determined by the Representatives in their sole discretion of the following conditions precedent on or prior to the Closing Date and any Option Closing Date:

(a) Subsequent to the execution and delivery of this Agreement and prior to the Closing Date and any Option Closing Date:

(i) there shall not have occurred any downgrading, nor shall any notice have been given of any intended or potential downgrading or of any review for a possible change that does not indicate the direction of the possible change, in the rating accorded the Company or any of the securities of the Company or any of its subsidiaries by any “nationally recognized statistical rating organization,” as such term is defined in Section 3(a)(62) of the Exchange Act; and

(ii) there shall not have occurred any change, or any development involving a prospective change, in the condition, financial or otherwise, or in the earnings, business or operations of the Company and its subsidiaries, taken as a whole, from that set forth in the Time of

Sale Memorandum provided to the prospective purchasers of the Securities that, in your judgment, is material and adverse and that makes it, in your reasonable judgment, impracticable to market the Securities on the terms and in the manner contemplated in the Time of Sale Memorandum.

(b) The representations and warranties of the Company contained in this Agreement shall be true and correct (on and as of the Time of Sale and on and as of the Closing Date and any Option Closing Date, as if made on and as of the Time of Sale, Closing Date and such Option Closing Date); the statements of the Company’s officers made pursuant to any certificate delivered in accordance with the provisions hereof shall be true and correct on and as of the date made and on and as of the Closing Date and any Option Closing Date; the Company shall have performed all covenants and agreements and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to the Closing Date and any Option Closing Date.

(c) The Initial Purchasers shall have received on the Closing Date and any Option Closing Date a certificate, dated the Closing Date or Option Closing Date, as applicable, and signed by the Chief Executive Officer or President of the Company and the Chief Financial Officer or Chief Accounting Officer of the Company to the effect set forth in Section 5(a)(i) and 5(a)(ii), and further to the effect that the representations and warranties of the Company contained in this Agreement were true and correct as of the Time of Sale and are true and correct as of the Closing Date or Option Closing Date, as applicable; that the Company has complied with all of the agreements and satisfied all of the conditions on its part to be performed or satisfied hereunder on or before the Closing Date or Option Closing Date, as applicable; and that the sale of the Securities has not been enjoined (temporarily or permanently).

(d) The Initial Purchasers shall have received on the Closing Date and any Option Closing Date, as applicable, an opinion and negative assurance letter of Calfee, Halter & Griswold LLP, outside counsel for the Company, dated the Closing Date or Option Closing Date, as applicable, in form and substance reasonably satisfactory to the Initial Purchasers and an opinion letter of the General Counsel of the Company, dated the Closing Date and Option Closing Date, as applicable, in form and substance reasonably satisfactory to the Initial Purchasers. Such opinions and letter shall be rendered to the Initial Purchasers at the request of the Company and shall so state therein.

(e) The Initial Purchasers shall have received on the Closing Date and any Option Closing Date, as applicable, an opinion and negative assurance letter of Latham & Watkins LLP, counsel for the Initial Purchasers, dated the Closing Date or Option Closing Date, as applicable, with respect to such matters as may be reasonably requested by the Initial Purchasers.

(f) On the date hereof, the Initial Purchasers shall have received from Ernst & Young LLP, the independent registered public accounting firm for the Company, a “comfort letter” dated the date hereof addressed to the Initial Purchasers, in form and substance satisfactory to the Initial Purchasers, covering the financial information in the Time of Sale Memorandum and other customary matters related to the Company. In addition, on the Closing Date and any Option Closing Date, as applicable, the Initial Purchasers shall have received from such accountants a “bring-down comfort letter” dated the Closing Date or Option Closing Date, as applicable, addressed to the Initial Purchasers, in form and substance satisfactory to the Initial Purchasers, in the form of the “comfort letter” delivered on the date hereof, except that (i) it shall cover the financial information in the Final Memorandum and any amendment or supplement thereto and (ii) procedures shall be brought down to a date no more than three business days prior to the Closing Date or Option Closing Date, as applicable.

(g) On the date hereof, the Initial Purchasers shall have received from BKD, LLP, the independent registered public accounting firm for the Target, a “comfort letter” dated the date hereof addressed to the Initial Purchasers, in form and substance satisfactory to the Initial Purchasers, covering the financial information in the Time of Sale Memorandum and other customary matters related to the Target. In addition, on the Closing Date and any Option Closing Date, as applicable, the Initial Purchasers shall have received from such accountants a “bring-down comfort letter” dated the Closing Date or Option Closing Date, as applicable, addressed to the Initial Purchasers, in form and substance satisfactory to the Initial Purchasers, in the form of the “comfort letter” delivered on the date hereof, except that (i) it shall cover the financial information in the Final Memorandum and any amendment or supplement thereto and (ii) procedures shall be brought down to a date no more than three business days prior to the Closing Date or Option Closing Date, as applicable.

(h) The Company shall have executed and delivered the Indenture, in form and substance reasonably satisfactory to the Initial Purchasers, and the Initial Purchasers shall have received executed copies thereof, and no event that would be a “Default” or “Event of Default” under the Indenture exists.

(i) The sale of the Securities shall not be enjoined (temporarily or permanently) on the Closing Date or any Option Closing Date.

(j) An application for the listing of the Conversion Shares and Warrant Shares shall have been submitted to NASDAQ without objection.

(k) At the date of this Agreement, the Initial Purchasers shall have received an agreement substantially in the form of Exhibit A hereto signed by the persons listed on Schedule III hereto.

(l) No event has occurred that would, if the Securities were outstanding, require an adjustment to the conversion rate for the Securities pursuant to the Indenture.

(m) On or before the Closing Date or any Option Closing Date, the Initial Purchasers and counsel for the Initial Purchasers shall have received such information, documents, letters and opinions as they may reasonably require for the purposes of enabling them to pass upon the issuance and sale of the Securities as contemplated herein, or in order to evidence the accuracy of any of the representations and warranties, or the satisfaction of any of the conditions or agreements, herein contained.

If any condition specified in this Section 5 is not satisfied when and as required to be satisfied, this Agreement may be terminated by the Representatives by notice to the Company at any time on or prior to the Closing Date or Option Closing Date, as applicable, which termination shall be without liability on the part of any party to any other party, except that Sections 6(g), 8 and 11 hereof shall at all times be effective and shall survive such termination.

6.Covenants of the Company. The Company covenants with each Initial Purchaser as follows:

(a) To furnish to you in New York City, without charge, as promptly as practicable following the Time of Sale and in any event not later than the second business day following the date hereof and during the period mentioned in Section 6(d) or (e) hereof, as many copies of the Time of Sale Memorandum, the Final Memorandum, any documents incorporated by reference therein and any supplements and amendments thereto as you may reasonably request.

(b) Before amending or supplementing the Preliminary Memorandum, the Time of Sale Memorandum or the Final Memorandum, to furnish to you a copy of each such proposed amendment or supplement and not to use any such proposed amendment or supplement to which you reasonably object.

(c) To furnish to you a copy of each proposed Additional Written Offering Communication to be prepared by or on behalf of, used by, or referred to by the Company and not to use or refer to any proposed Additional Written Offering Communication to which you reasonably object.

(d) If the Time of Sale Memorandum is being used to solicit offers to buy the Securities at a time when the Final Memorandum is not yet available to prospective purchasers and any event shall occur or condition exist as a result of which it is necessary to amend or supplement the Time of Sale Memorandum in order to make the statements therein, in the light of the circumstances under which they are made, not misleading or if, in the reasonable judgment of the Representatives or counsel for the Initial Purchasers, it is necessary to amend or supplement the Time of Sale Memorandum to comply with applicable law,

forthwith to prepare and furnish, at its own expense, to the Initial Purchasers and to any dealer upon request, either amendments or supplements to the Time of Sale Memorandum so that the statements in the Time of Sale Memorandum as so amended or supplemented will not, in the light of the circumstances under which they are made, when delivered to a Subsequent Purchaser, be misleading or so that the Time of Sale Memorandum, as amended or supplemented, will comply with applicable law.

(e) If, during such period after the date hereof and prior to the date on which all of the Securities shall have been sold by the Initial Purchasers, any event shall occur or condition exist as a result of which it is necessary to amend or supplement the Final Memorandum in order to make the statements therein, in the light of the circumstances under which they are made, not misleading or if, in the reasonable judgment of the Representatives or counsel for the Initial Purchasers, it is necessary to amend or supplement the Final Memorandum to comply with applicable law, forthwith to prepare and furnish, at its own expense, to the Initial Purchasers, either amendments or supplements to the Final Memorandum so that the statements in the Final Memorandum as so amended or supplemented will not, in the light of the circumstances under which they are made, when delivered to a Subsequent Purchaser, be misleading or so that the Final Memorandum, as amended or supplemented, will comply with applicable law.

(f) (i) To cooperate with the Representatives and counsel for the Initial Purchasers to qualify or register (or to obtain exemptions from qualifying or registering) all or any part of the Securities for offer and sale under the securities laws of the several states of the United States, the provinces of Canada or any other jurisdictions reasonably designated by the Initial Purchasers, and to comply with such laws and to continue such qualifications, registrations and exemptions in effect so long as required for the distribution of the Securities and (ii) to advise the Representatives promptly of the Company’s receipt of any notice of the suspension of the qualification or registration of (or any such exemption relating to) the Securities for offering, sale or trading in any jurisdiction or notice of any initiation or threat of any proceeding for any such purpose, and in the event of the issuance of any order suspending such qualification, registration or exemption, to use its best efforts to obtain the withdrawal thereof as promptly as practicable. Notwithstanding the foregoing, the Company shall not be required to qualify as a foreign corporation nor to take any action that would subject it to general service of process in any such jurisdiction where it is not presently qualified or where it would be subject to taxation as a foreign corporation.

(g) Whether or not the transactions contemplated in this Agreement are consummated or this Agreement is terminated, to pay or cause to be paid all expenses incident to the performance of its obligations under this Agreement, including: (i) the fees, disbursements and expenses of the Company’s counsel and the Company’s accountants and other advisors in connection with the issuance and sale of the Securities, the Conversion Shares and the Warrant Shares and all other fees or expenses of the Company in connection with the issuance and

sale of the Securities, the Conversion Shares and the Warrant Shares, including, without limitation, in connection with the preparation, printing, filing, shipping and distribution of the Preliminary Memorandum, the Time of Sale Memorandum, the Final Memorandum, any Additional Written Offering Communication and any amendments and supplements to any of the foregoing, this Agreement, the Call Spread Confirmations, the Indenture and the Securities, including all printing costs associated therewith, and the delivering of copies thereof to the Initial Purchasers, (ii) all costs and expenses related to the transfer and delivery of the Securities to the Initial Purchasers, including any transfer or other taxes payable thereon, (iii) the cost of printing or producing any Blue Sky or legal investment memorandum in connection with the offer and sale of the Securities under state securities laws and all expenses in connection with the qualification of the Securities for offer and sale under state securities laws as provided in Section 6(f) hereof, including filing fees and the reasonably incurred fees and disbursements of counsel for the Initial Purchasers in connection with such qualification and in connection with the Blue Sky or legal investment memorandum, (iv) any fees charged by rating agencies for the rating of the Securities, (v) the fees and expenses, if any, incurred in connection with the admission of the Securities for trading any appropriate market system, (vi) the costs and charges of the Trustee and any transfer agent, registrar or depositary, (vii) the cost of the preparation, issuance and delivery of the Securities, (viii) the costs and expenses of the Company relating to investor presentations on any “road show” undertaken in connection with the marketing of the offering of the Securities, (ix) the document production charges and expenses associated with printing this Agreement, (x) any cost incurred in connection with the listing of the Conversion Shares and the Warrant Shares on NASDAQ and (xi) all other cost and expenses incident to the performance of the obligations of the Company hereunder for which provision is not otherwise made in this Section. It is understood, however, that except as provided in this Section, Section 8, and Section 11, the Initial Purchasers will pay all of their costs and expenses, including fees and disbursements of their counsel, transfer taxes payable on resale of any of the Securities by them and any advertising expenses connected with any offers they may make.

(h) Neither the Company nor any Affiliate will sell, offer for sale or solicit offers to buy or otherwise negotiate in respect of any security (as defined in the Securities Act) which if, as a result of the doctrine of “integration” referred to in Rule 502 under the Securities Act, such offer or sale would render invalid (for the purpose of (i) the sale of the Securities by the Company to the Initial Purchasers, (ii) the resale of the Securities by the Initial Purchasers to the Subsequent Purchasers or (iii) the resale of the Securities by such Subsequent Purchasers to others) the exemption from the registration requirements of the Securities Act provided by Section 4(a)(2) thereof or by Rule 144A thereunder or otherwise.

(i) The Company will not solicit any offer to buy or offer to sell the Securities by means of any form of general solicitation or general advertising (as those terms are used in Regulation D under the Securities Act) or in any manner involving a public offering within the meaning of Section 4(a)(2) of the Securities Act.

(j) Prior to the Closing Date, to furnish to the Initial Purchasers, as soon as they have been prepared, a copy of any audited annual financial statements or unaudited interim financial statements of the Company for any period subsequent to the period covered by the most recent financial statements appearing in the Time of Sale Memorandum and the Final Memorandum; and while any of the Securities remain outstanding, to make available, upon request, to any holder of such Securities and any prospective purchasers thereof the information specified in Rule 144A(d)(4) under the Securities Act, unless (i) as such time the Company shall be subject to Section 13 or 15(d) of the Exchange Act and shall have filed all reports required to be filed pursuant to such Sections and the related rules and regulations of the Commission or (ii) at such time the Securities are “freely tradable” as defined in the “Description of the Notes” section of the Final Memorandum.

(k) During the period of one year after the Closing Date, the Company will not be, nor will it become, anopen-end investment company, unit investment trust or face-amount certificate company that is or is required to be registered under Section 8 of the Investment Company Act.

(l) The Company will not resell, and will use its commercially reasonable efforts to prevent any person or entity that is an affiliate (as defined in Rule 144 under the Securities Act) at such time (or who has been an affiliate within the three months preceding such time) from reselling, any of the Securities that have been acquired by any of them (other than any resale pursuant to a registration statement that has become effective under the Securities Act or pursuant to Rule 144).

(m) Not to take any action prohibited by Regulation M under the Exchange Act in connection with the distribution of the Securities contemplated hereby.

(n) To apply the net proceeds from the sale of the Securities in the manner described under the caption “Use of Proceeds” in the Time of Sale Memorandum and the Final Memorandum.

(o) During the period of 90 days following the date hereof, the Company will not and will not permit any of its subsidiaries to, without the prior written consent of the Representatives (which consent may be withheld at the sole discretion of the Representatives), directly or indirectly, (i) offer, issue, sell, contract to sell, pledge, grant any option to purchase, make any short sale or otherwise transfer or dispose of, directly or indirectly, or file with the Commission a registration statement under the Securities Act relating to any securities of the Company that are substantially similar to the Securities or

Common Stock, including but not limited to any options or warrants to purchase shares of Common Stock or any securities that are convertible into or exchangeable for, or that represent the right to receive, Common Stock or any such substantially similar securities, or publicly disclose the intention to make any offer, sale, pledge, disposition or filing or (ii) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the Common Stock or any such other securities, whether any such transaction is to be settled by delivery of Common Stock or such other securities, in cash or otherwise (other than pursuant to this Agreement, employee stock plans or contractual registration rights existing on, or upon the conversion, exchange or exercise of convertible, exchangeable or exercisable securities outstanding as of, the date of this Agreement), other than (A) the Securities to be sold hereunder, (B) the transactions entered into pursuant to the Base Warrant Confirmations and the Additional Warrant Confirmations, if any, (C) the Conversion Shares or Warrant Shares, (D), the repurchase of the Company’s 2.00% Convertible Senior Subordinated Notes due 2018, and the purchase, settlement or termination of any options or warrants relating thereto, in each case in connection with the offering contemplated by this Agreement, (E) the Common Stock issuable upon exercise of warrants, options or other equity awards outstanding on the date hereof, (F) the purchase of shares of Common Stock from equity plan participants to settle tax liabilities and (G) the issuance, granting or vesting of stock options, restricted stock, shares of Common Stock or other equity incentive awards pursuant to the Company’s equity compensation or director compensation plans, in the case of each of clauses (D) and (E), as described in each of the Time of Sale Memorandum and the Final Memorandum.

(p) To reserve and keep available at all times, free of preemptive rights, shares of Common Stock for the purpose of enabling the Company to satisfy any obligations to issue Conversion Shares.

(q) To cooperate with the Initial Purchasers to cause the Securities to be eligible for settlement through the facilities of the Depository Trust Company (“DTC”) (including, without limitation, filing with DTC any necessary or appropriate letters of representations or riders thereto).

(r) To use its best efforts to list for quotation, subject to notice of issuance, the Conversion Shares on NASDAQ.

7.Offering of Securities; Restrictions on Transfer. (a) Each Initial Purchaser, severally and not jointly, represents and warrants that such Initial Purchaser is a qualified institutional buyer as defined in Rule 144A under the Securities Act (a “QIB”) and an “accredited investor” as defined in Rule 501(a)(1) under the Securities Act. Each Initial Purchaser, severally and not jointly, agrees with the Company that (i) it will not solicit offers for, or offer or sell, such Securities by any form of general solicitation or general advertising (as those terms are used in Regulation D under the Securities Act) or in any manner involving a public offering within the meaning of Section 4(a)(2) of the Securities Act, (ii) it will sell the Securities in the United States only to persons that it reasonably believes to be QIBs that, in purchasing such Securities are deemed to have represented and agreed as provided in the Final Memorandum under the caption “Transfer Restrictions.”

(b) Each Initial Purchaser, severally and not jointly, represents, warrants, and agrees with respect to offers and sales outside the United States that:

(i) such Initial Purchaser understands that no action has been or will be taken in any jurisdiction by the Company that would permit a public offering of the Securities, or possession or distribution of the Preliminary Memorandum, the Time of Sale Memorandum, the Final Memorandum or any other offering or publicity material relating to the Securities, in any country or jurisdiction where action for that purpose is required;

(ii) such Initial Purchaser will comply with all applicable laws and regulations in each jurisdiction in which it acquires, offers, sells or delivers Securities or has in its possession or distributes the Preliminary Memorandum, the Time of Sale Memorandum, the Final Memorandum or any such other material, in all cases at its own expense; and

(iii) the Securities have not been registered under the Securities Act and may not be sold within the United States or to, or for the account or benefit of, U.S. persons except in accordance with Rule 144A under the Securities Act.

8.Indemnity and Contribution. (a) The Company agrees to indemnify and hold harmless each Initial Purchaser, its directors and officers and each person, if any, who controls any Initial Purchaser within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act, and each affiliate of each Initial Purchaser within the meaning of Rule 405 under the Securities Act from and against any and all losses, claims, damages, liabilities and expenses (including, without limitation, any legal or other expenses reasonably incurred in connection with defending or investigating any such action or claim, as such expenses are incurred) caused by any untrue statement or alleged untrue statement of a material fact contained in the Preliminary Memorandum, the Time of Sale Memorandum, any Additional Written Offering Communication, including those set forth in Schedule II hereto, prepared by or on behalf of, used by, or referred to by the Company, any General Solicitation made by the Company or the Final Memorandum or any amendment or supplement thereto, or caused by any omission or alleged omission to state therein a material fact necessary to make the statements therein in the light of the circumstances under which they were made not misleading, except insofar as such losses, claims, damages, liabilities or expenses are caused by any such untrue statement or omission or alleged untrue statement or omission based upon information relating to any Initial Purchaser furnished to the Company by the Representatives expressly for use in the Preliminary Memorandum, the Pricing

Supplement, any Additional Written Offering Communication, General Solicitation or the Final Memorandum (or any amendment or supplement thereto). The indemnity agreement set forth in this Section 8(a) shall be in addition to any liabilities that the Company may otherwise have.

(b) Each Initial Purchaser agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors, officers and each person, if any, who controls the Company within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the foregoing indemnity from the Company to such Initial Purchaser, but only with reference to information relating to such Initial Purchaser furnished to the Company by such Initial Purchaser expressly for use in the Preliminary Memorandum, the Pricing Supplement, any Additional Written Offering Communication or the Final Memorandum (or any amendment or supplement thereto). The Company hereby acknowledges that the only information that the Initial Purchasers have furnished to the Company expressly for use in the Preliminary Memorandum, the Time of Sale Memorandum, any Additional Written Communication set forth in Schedule II hereto or the Final Memorandum (or any amendment or supplement thereto) are the statements set forth in the first paragraph under the caption “Price Stabilization and Short Positions; Purchase of Common Stock” in the “Plan of Distribution” section in the Preliminary Memorandum and the Final Memorandum.

(c) In case any proceeding (including any governmental investigation) shall be instituted involving any person in respect of which indemnity may be sought pursuant to Section 8(a) or 8(b) hereof, such person (the “indemnified party”) shall promptly notify the person against whom such indemnity may be sought (the “indemnifying party”) in writing; provided, however, that the failure to so notify the indemnifying party will not relieve it from any liability which it may have to any indemnified party under this Section 8 except to the extent that it has been materially prejudiced by such failure (through the forfeiture of substantive rights and defenses) and shall not relieve the indemnifying party from any liability that the indemnifying party may have to an indemnified party other than under this Section 8. The indemnifying party, upon request of the indemnified party, shall retain counsel reasonably satisfactory to the indemnified party to represent the indemnified party and any others the indemnifying party may designate in such proceeding and shall pay the reasonable fees and disbursements of such counsel related to such proceeding. In any such proceeding, any indemnified party 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 party unless (i) the indemnifying party and the indemnified party shall have mutually agreed to the retention of such counsel, (ii) the indemnifying party has failed within a reasonable time to retain counsel reasonably satisfactory to the indemnified party, (iii) the indemnified party 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 indemnified party, or (iv) the named parties to any such proceeding (including any impleaded parties) include both the

indemnifying party and the indemnified party and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood that the indemnifying party shall not, in respect of the legal expenses of any indemnified party in connection with any proceeding or related proceedings in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all such indemnified parties and that all such fees and expenses shall be reimbursed as they are incurred. Such firm shall be designated in writing by the Representatives, in the case of parties indemnified pursuant to Section 8(a) hereof, and by the Company, in the case of parties indemnified pursuant to Section 8(b) hereof. The indemnifying party 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, the indemnifying party agrees to indemnify the indemnified party from and against any loss, claim, damage, liability or expense by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel as contemplated by the second and third sentences of this paragraph, the indemnifying party agrees that it shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 30 days after receipt by such indemnifying party of the aforesaid request and (ii) such indemnifying party shall not have reimbursed the indemnified party in accordance with such request prior to the date of such settlement unless such indemnifying party has (A) reimbursed all undisputed amounts and only failed to reimburse amounts disputed in good faith and (B) provided detail regarding the reasons for the failure to reimburse amounts requested by the indemnified party. No indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement of any pending or threatened proceeding in respect of which any indemnified party is or could have been a party and indemnity could have been sought hereunder by such indemnified party, unless such settlement (x) includes an unconditional release of such indemnified party from all liability on claims that are the subject matter of such proceeding and (y) does not include any statements as to or any findings of fault, culpability or failure to act by or on behalf of any indemnified party.

(d) To the extent the indemnification provided for in Section 8(a) or 8(b) hereof is unavailable to an indemnified party or insufficient in respect of any losses, claims, damages, liabilities or expenses referred to therein, then each indemnifying party under such paragraph, in lieu of indemnifying such indemnified party thereunder, shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages, liabilities or expenses (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Initial Purchasers on the other hand from the offering of the Securities or (ii) if the allocation provided by clause 8(d)(i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause 8(d)(i) above but also the relative fault of the Company on the one hand and of the Initial

Purchasers on the other hand 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 Initial Purchasers on the other hand in connection with the offering of the Securities shall be deemed to be in the same respective proportions as the net proceeds from the offering of the Securities (before deducting expenses) received by the Company and the total discounts and commissions received by the Initial Purchasers bear to the aggregate offering price of the Securities. The relative fault of the Company on the one hand and of the Initial Purchasers on the other hand 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 Initial Purchasers, and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Initial Purchasers’ respective obligations to contribute pursuant to this Section 8 are several in proportion to the respective principal amount of Securities they have purchased hereunder as set forth opposite their names in Schedule I hereto, and not joint.

(e) The Company and the Initial Purchasers agree that it would not be just or equitable if contribution pursuant to Section 8(d) hereof were determined bypro rata allocation (even if the Initial Purchasers 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 Section 8(d) hereof. The amount paid or payable by an indemnified party as a result of the losses, claims, damages and liabilities referred to in Section 8(d) hereof shall be deemed to include, subject to the limitations set forth above, any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this subsection (e), no Initial Purchaser shall be obligated to make contributions hereunder that in the aggregate exceed the total discounts, commissions and other compensation received by such Initial Purchaser under this Agreement, less the aggregate amount of any damages that such Initial Purchaser 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 remedies provided for in this Section 8 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any indemnified party at law or in equity.

(f) The indemnity and contribution provisions contained in this Section 8 and the representations, warranties and other statements of the Company contained in this Agreement shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by or on behalf of any Initial Purchaser, any person controlling any Initial Purchaser or any affiliate of any Initial Purchaser or by or on behalf of the Company, its officers or directors or any person controlling the Company and (iii) acceptance of and payment for any of the Securities.

9.Termination. The Representatives may terminate this Agreement by notice given by you to the Company, if after the execution and delivery of this Agreement and prior to the Closing Date (i) trading generally shall have been suspended or materially limited on, or by, as the case may be, any of the New York Stock Exchange, the NYSE MKT, or the NASDAQ Global Market, (ii) trading of any securities of the Company shall have been suspended on any exchange or in any over the counter market, (iii) a material disruption in securities settlement, payment or clearance services in the United States shall have occurred, (iv) any moratorium on commercial banking activities shall have been declared by Federal or New York State authorities or (v) there shall have occurred any outbreak or escalation of hostilities, or any change in financial markets or any calamity or crisis that, in your judgment, is material and adverse and which, singly or together with any other event specified in this clause (v), makes it, the judgment of the Representatives, impracticable or inadvisable to proceed with the offer, sale or delivery of the Securities on the terms and in the manner contemplated in the Time of Sale Memorandum or the Final Memorandum.

10.Effectiveness; Defaulting Initial Purchasers. This Agreement shall become effective upon the execution and delivery hereof by the parties hereto.

If, on the Closing Date, any one or more of the Initial Purchasers shall fail or refuse to purchase Securities that it or they have agreed to purchase hereunder on such date, and the aggregate principal amount of Securities which such defaulting Initial Purchaser or Initial Purchasers agreed but failed or refused to purchase is not more than one tenth of the aggregate principal amount of Securities to be purchased on such date, the other Initial Purchasers shall be obligated severally in the proportions that the principal amount of Securities set forth opposite their respective names in Schedule I bears to the aggregate principal amount of Securities set forth opposite the names of all such non defaulting Initial Purchasers, or in such other proportions as may be specified by the Initial Purchasers with the consent of thenon-defaulting Initial Purchasers, to purchase the Securities which such defaulting Initial Purchaser or Initial Purchasers agreed but failed or refused to purchase on the Closing Date;provided that in no event shall the principal amount of Securities that any Initial Purchaser has agreed to purchase pursuant to this Agreement be increased pursuant to this Section 10 by an amount in excess of one ninth of such principal amount of Securities without the written consent of such Initial Purchaser. If, on the Closing Date any Initial Purchaser or Initial Purchasers shall fail or refuse to purchase Securities which it or they have agreed to purchase hereunder on such date and the aggregate principal amount of Securities with respect to which such default occurs is more than one tenth of the aggregate principal amount of Securities to be purchased on the Closing Date, and arrangements satisfactory to thenon-defaulting Initial Purchasers and the Company for the purchase of such Securities are not made within 36 hours after such default, this Agreement shall terminate without liability on the part of any non defaulting Initial Purchaser or of the Company except that the provisions of Sections 6(g), 8 and 11 hereof shall at all times be effective and shall survive such termination. In any such case either the Initial Purchasers or the Company

shall have the right to postpone the Closing Date, but in no event for longer than seven days, in order that the required changes, if any, in the Time of Sale Memorandum, the Final Memorandum or in any other documents or arrangements may be effected. As used in this Agreement, the term “Initial Purchaser” shall be deemed to include any person substituted for a defaulting Initial Purchaser under this Section 10. Any action taken under this paragraph shall not relieve any defaulting Initial Purchaser from liability in respect of any default of such Initial Purchaser under this Agreement.

11.Reimbursement of the Expenses of the Initial Purchasers. If this Agreement shall be terminated by the Initial Purchasers pursuant to clause (ii) of Section 9 or because of any failure or refusal on the part of the Company to comply with the terms or to fulfill any of the conditions of this Agreement, or if for any reason the Company shall be unable to perform its obligations under this Agreement (in each case other than (x) a termination pursuant to clauses (i), (iii), (iv) or (v) of Section 9 or (y) a termination pursuant to Section 10 (with respect to the defaulting Initial Purchaser only)), the Company will reimburse the Initial Purchasers, severally, upon demand for all out of pocket expenses (including the fees and reasonable disbursements of their counsel) reasonably incurred by such Initial Purchasers in connection with this Agreement or the offering contemplated hereunder.

12.Entire Agreement. (a) This Agreement, together with any contemporaneous written agreements and any prior written agreements (to the extent not superseded by this Agreement) that relate to the offering of the Securities, represents the entire agreement between the Company and the Initial Purchasers with respect to the preparation of the Preliminary Memorandum, the Time of Sale Memorandum, the Final Memorandum, the conduct of the offering, and the purchase and sale of the Securities.

(b) This Agreement supersedes all prior agreements and understandings (whether written or oral) between the Company and the Initial Purchasers, or any of them, with respect to the subject matter hereof.

(c) The Company acknowledges that in connection with the offering of the Securities: (i) the Initial Purchasers have acted at arm’s length, are not agents of, and owe no fiduciary duties to, the Company or any other person, (ii) the Initial Purchasers owe the Company only those duties and obligations set forth in this Agreement and prior written agreements (to the extent not superseded by this Agreement) if any, (iii) the Initial Purchasers may have interests that differ from those of the Company and (iv) the Initial Purchasers have not provided any legal, accounting, regulatory or tax advice with respect to the offering contemplated hereby, and the Company has consulted its own legal, accounting, regulatory and tax advisors to the extent it deemed appropriate. The Company waives to the full extent permitted by applicable law any claims it may have against the Initial Purchasers arising from an alleged breach of fiduciary duty in connection with the offering of the Securities.

13.Counterparts. This Agreement may be signed in two or more counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument. Delivery of an executed counterpart of a signature page to this Agreement by telecopier, facsimile or other electronic transmission (i.e., a “pdf” or “tif”) shall be effective as delivery of a manually executed counterpart thereof.

14.Successors. This Agreement will inure to the benefit of and be binding upon the parties hereto, and to the benefit of the indemnified parties referred to in Section 8 hereof, and in each case their respective successors, and no other person will have any right or obligation hereunder. The term “successors” shall not include any Subsequent Purchaser or other purchaser of the Securities as such from any of the Initial Purchasers merely by reason of such purchase.

15.Partial Unenforceability. The invalidity or unenforceability of any section, paragraph or provision of this Agreement shall not affect the validity or enforceability of any other section, paragraph or provision hereof. If any section, paragraph or provision of this Agreement is for any reason determined to be invalid or unenforceable, there shall be deemed to be made such minor changes (and only such minor changes) as are necessary to make it valid and enforceable.

16.Authority of the Representative. Any action by the Initial Purchasers hereunder may be taken by the Representatives on behalf of the Initial Purchasers, and any such action taken by the Representatives shall be binding upon the Initial Purchasers.

17.Applicable Law. This Agreement shall be governed by and construed in accordance with the internal laws of the State of New York.

(a) Any legal suit, action or proceeding arising out of or based upon this Agreement or the transactions contemplated hereby (“Related Proceedings”) may be instituted in the federal courts of the United States of America located in the City and County of New York or the courts of the State of New York in each case located in the City and County of New York (collectively, the “Specified Courts”), and each party submits to the jurisdiction of the Specified Courts in any Related Proceeding. Service of any process, summons, notice or document by mail to such party’s address set forth above shall be effective service of process for any Related Proceeding brought in any Specified Court. The parties waive any objection to the laying of venue of any Related Proceeding in the Specified Courts and waive and agree not to plead or claim in any Specified Court that any Related Proceeding brought in any Specified Court has been brought in an inconvenient forum.

18.Headings. The headings of the sections of this Agreement have been inserted for convenience of reference only and shall not be deemed a part of this Agreement.

19.Notices. All communications hereunder shall be in writing and effective only upon receipt and if to the Initial Purchasers shall be delivered, mailed or sent to you in care of Morgan Stanley & Co. LLC, at 1585 Broadway, New York, New York 10036, Attention: Equity Syndicate Desk, with a copy to the Legal Department and J.P. Morgan

Securities LLC, 383 Madison Avenue, New York, NY 10179, Attention: Equity Syndicate Desk, Fax: (212)622-8358; and if to the Company shall be delivered, mailed or sent to Chart Industries, Inc., 3055 Torrington Drive, Ball Ground, Georgia 30107, Attention: General Counsel.

[Signature Pages Follow]

If the foregoing is in accordance with your understanding of our agreement, kindly sign and return to the Company the enclosed copies hereof, whereupon this instrument, along with all counterparts hereof, shall become a binding agreement in accordance with its terms.


Very truly yours,

CHART INDUSTRIES, INC.

By:		/s/ Jillian C. Evanko
		Name: Jillian C. Evanko
		Title: VP/CFO

Morgan Stanley & Co. LLC

J.P. Morgan Securities LLC

Acting on behalf of themselves and as the

Representatives of the several Initial

Purchasers named in Schedule I hereto.

Morgan Stanley & Co. LLC


By:		/s/ Serkan Savasoglu
		Name: Serkan Savasoglu
		Title: Managing Director


J.P. Morgan Securities LLC

By:		/s/ John B. Richert
		Name: John B. Richert
		Title: Managing Director

SCHEDULE I


Initial Purchaser	$225,000,000 of Securities to be Purchased
Morgan Stanley & Co. LLC	$	135,000,000
J.P. Morgan Securities LLC	$	67,500,000
Raymond James & Associates, Inc.	$	22,500,000

Total:	$	225,000,000

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SCHEDULE II

Permitted Communications

Time of Sale Memorandum

1.	Preliminary Memorandum issued October 30, 2017

2.	Pricing Term Sheet, dated October 31, 2017

Permitted Additional Written Offering Communications

Each electronic “road show” as defined in Rule 433(h) furnished to the Initial Purchasers prior to use that the Initial Purchasers and Company have agreed may be used in connection with the offering of the Securities

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SCHEDULE III

List of Persons and Entities Subject toLock-up

W. Douglas Brown

Jillian C. Evanko

Richard E. Goodrich

William C. Johnson

Terrence J. Keating

Steven W. Krablin

Michael L. Molinini

Elizabeth G. Spomer

Samuel F. Thomas

Gerald F. Vinci

Thomas L. Williams

DeWayne Youngberg

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SCHEDULE IV

Significant Subsidiaries

Chart Inc.

Chart Energy & Chemicals, Inc.

CAIRE Inc.

RCHPH Holdings, Inc.

Hudson Products Corporation

Chart Ferox, a.s.

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EXHIBIT A

FORM OF LOCK UP AGREEMENT

Ladies and Gentlemen:

The undersigned understands that you, Morgan Stanley & Co. LLC and J.P. Morgan Securities LLC, as representatives (the “Representatives”) of the several initial purchasers named in Schedule I thereto (the “Initial Purchasers”), propose to enter into an Purchase Agreement (the “Purchase Agreement”) with Chart Industries, Inc., a Delaware corporation (the “Company”), providing for the offering (the “Offering”) by the Initial Purchasers of Convertible Senior Subordinated Notes due 2024 of the Company (the “Securities”). Capitalized terms used herein and not otherwise defined shall have the meanings set forth in the Purchase Agreement.

In consideration of the Initial Purchaser’s agreement to purchase and make the Offering of the Securities, and for other good and valuable consideration receipt of which is hereby acknowledged, the undersigned hereby agrees that, without the prior written consent of the Representatives, the undersigned will not, during the period commencing on the date hereof and ending ninety (90) days after the date of the Final Memorandum, (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock, $0.01 per share par value, of the Company (the “Common Stock”) or any securities convertible into or exercisable or exchangeable for Common Stock (including without limitation, Common Stock or such other securities which may be deemed to be beneficially owned by the undersigned in accordance with the rules and regulations of the Securities and Exchange Commission and securities which may be, or are, issued upon exercise of a stock option or warrant), or publicly disclose the intention to make any offer, sale, pledge or disposition, (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the Common Stock or such other securities, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Common Stock or such other securities, in cash or otherwise or (3) during the period ending ninety (90) days after the date of the Final Memorandum, make any demand for or exercise any right with respect to, the registration of any shares of Common Stock or any security convertible into or exercisable or exchangeable for Common Stock. The foregoing shall not apply to (1) withholding (or sale to the Company) of Common Stock to satisfy tax obligations in connection with the vesting of equity compensation awards, including restricted stock, performance units and, in the case of the Company’s directors, awards of Common Stock pursuant to the Company’s director compensation program, or exercises of options to acquire shares of Common Stock, including sales made to the Company in connection with the cashless exercise of options, in each case as described in each of the Time of Sale Memorandum and the Final Memorandum or (2) transfers of shares of Common Stock or securities convertible into or exercisable or exchangeable for Common Stock (A) as a bona fide gift or (B) by will or intestate succession to a member or members of the undersigned’s immediate family or to a trust, formed for the benefit of any such

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person;provided that in the case of any transfer pursuant tosub-clauses (A) and (B) above, (i) each transferee shall sign and deliver alock-up letter substantially in the form of this letter and (ii) no filing under Section 16(a) of the Exchange Act or other public announcement shall be required or shall be voluntarily made during the90-day restricted period. The undersigned may establish a trading plan intended to comply with Rule10b5-1 under the Exchange Act,provided that, the plan does not provide for or permit any sale or other transfer of Common Stock or securities convertible into or exercisable or exchangeable for Common Stock during the90-day restricted period, any required filing related to such plan shall state that such sales or other transfers during the90-day restricted period are prohibited and no other public announcement shall be required or shall be voluntarily made during such90-day restricted period. The undersigned also agrees and consents to the entry of stop transfer instructions with the Company’s transfer agent and registrar against the transfer of the undersigned’s shares of Common Stock except in compliance with the foregoing restrictions.

In furtherance of the foregoing, the Company, and any duly appointed transfer agent for the registration or transfer of the securities described herein, are hereby authorized to decline to make any transfer of securities if such transfer would constitute a violation or breach of this letter agreement.

The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this letter agreement. All authority herein conferred or agreed to be conferred and any obligations of the undersigned shall be binding upon the successors, assigns, heirs or personal representatives of the undersigned.

The undersigned understands that, if the Purchase Agreement does not become effective, or if the Purchase Agreement (other than the provisions thereof which survive termination) shall terminate or be terminated prior to payment for and delivery of the Securities to be sold thereunder, the undersigned shall be released from all obligations under this letter agreement. The undersigned understands that the Representatives are entering into the Purchase Agreement and proceeding with the Offering in reliance upon this letter agreement.

Whether or not the Offering actually occurs depends on a number of factors, including market conditions. Any Offering will only be made pursuant to the Purchase Agreement, the terms of which are subject to negotiation between the Company and the Representatives.

This letter agreement and any claim, controversy or dispute arising under or related to this letter agreement shall be governed by and construed in accordance with the laws of the State of New York, without regard to the conflict of laws principles thereof..

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Chart Industries (GTLS) 8-KChart Industries, Inc. Announces Proposed Offering of $225 Million of Convertible Senior Subordinated Notes Due 2024