1
                                                                    Exhibit 10.1


                                                                  EXECUTION COPY

                                SECOND AMENDMENT

                                       TO

                                CREDIT AGREEMENT


         This Second Amendment (this "Amendment") is executed at Cleveland, Ohio
as of March 5, 1998 by and among CHART INDUSTRIES, INC. (referred to hereinafter
as the "Parent"), ALTEC INTERNATIONAL LIMITED PARTNERSHIP ("ALTEC"), ALTEC, INC.
("AI"), CHART MANAGEMENT COMPANY, INC. ("Chart Management"), CHART INDUSTRIES
FOREIGN SALES CORPORATION ("Chart Foreign"), GREENVILLE TUBE CORPORATION
("Greenville"), PROCESS SYSTEMS INTERNATIONAL, INC. ("PSI"), CRYENCO SCIENCES,
INC. ("Sciences") and CRYENCO, INC. ("CI") (the Parent, ALTEC, AI, Chart
Management, Chart Foreign, Greenville, PSI, Sciences and CI being referred to
collectively as the "Borrowing Group") and NATIONAL CITY BANK ("NCB") and NBD
BANK ("NBD") (NCB and NBD being referred to collectively as the "Banks" and
singly as a "Bank") and NATIONAL CITY BANK, as agent for the Banks (the
"Agent").

         WHEREAS, the Borrowing Group, Banks and Agent entered into a Credit
Agreement dated as of July 29, 1997, as amended by a First Amendment to Credit
Agreement dated as of October 8, 1997 (the "Credit Agreement"; all terms used in
the Credit Agreement being used herein with the same meaning); and

         WHEREAS, the Borrowing Group, Banks and Agent want to make certain
changes in the Credit Agreement;

         NOW, THEREFORE, the Borrowing Group, Banks and Agent agree as follows:

         1. The "Whereas" clause on page 1 of the Credit Agreement is hereby
deleted and replaced with the following:

                           "WHEREAS, the Borrowing Group desires to obtain from
                  the Banks an unsecured revolving credit facility (the "Credit
                  Facility") in a principal amount not to exceed FORTY FIVE
                  MILLION DOLLARS ($45,000,000) less the face amount of any
                  outstanding letters of credit and foreign bank guaranties
                  including (i) a revolving loan that may be borrowed, repaid
                  and


                                                         

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                  reborrowed, (ii) standby letters of credit in an aggregate
                  stated amount not to exceed FIFTEEN MILLION DOLLARS
                  ($15,000,000), and (iii) a multi-currency credit facility in
                  pounds sterling in an aggregate stated amount not to exceed
                  THIRTY FIVE MILLION DOLLARS ($35,000,000), all upon the terms
                  and conditions set forth hereafter ((i) and (iii) are
                  hereinafter jointly referred to as the "Revolving Loan")."

         2. The following new definitions are hereby added to Section 1.01 of
the Credit Agreement:

         "Dollar Equivalent" shall mean, at any time, and at each time a
         determination is required, as determined by the Agent (which
         determination shall be conclusive absent manifest error), an equivalent
         amount of Pounds Sterling expressed in dollars.

         "Pounds Sterling" means the lawful currency of the United Kingdom, if
         at the time such currency is readily and freely transferable and
         convertible into Dollars.

         "Pounds Sterling Agent" means a lending institution located in the
         United Kingdom, designated by the Agent.

         "Pounds Sterling Credit Facility" means a portion of the Credit
         Facility pursuant to which the Parent, but no other member of the
         Borrowing Group, may obtain Advances in Pounds Sterling in any
         aggregate principal amount not to exceed the Dollar Equivalent of
         $35,000,000 at any time. The Pounds Sterling Credit Facility shall be a
         part of, and NOT SEPARATE FROM OR INDEPENDENT OF, the Credit Facility,
         and the Pounds Sterling Credit Facility shall be subject to all the
         terms and provisions applicable to the Credit Facility.

         3. The following Sections of the Credit Agreement are hereby amended as
follows:

                  SECTION 1.01 The definition "Banks" is hereby amended by
         adding the following phrase at the end of the existing definition:

                  ", and shall include any office, branch, subsidiary, or
                  affiliate of each named Bank, as selected by such Bank".

                  The definition "Borrowing Group" shall hereafter include Chart
         International, Inc., a Delaware corporation.


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         The definition "Libor Margin" is hereby amended by deleting the
performance grid contained therein and replacing it with the following:





        Level              Borrowed                      Fixed                  LIBOR Plus            Letter of         Facility Fee
                           Debt/Net                     Charge                    (basis               Credit              (basis
                             Worth                     Coverage                   points)            Pricing (%)           points)
                                                         Ratio
                                                                                                             
                         Less than or                Greater than or                
          1              equal to 1.00               equal to 2.61                  62.5                 .625                .375

          2              1.00 to 1.35                2.16 to 2.60                   87.5                 .875                .375

          3              1.36 to 1.70                1.71 to 2.15                  112.5                1.125                .375

          4              1.71 to 2.00                1.26 to 1.70                  137.5                1.125                .375


                  SECTION 1.03 The following new Section 1.03, entitled
         "CURRENCY EQUIVALENTS" is added to Article I of the Credit Agreement:

                  Section 1.03 CURRENCY EQUIVALENTS. For purposes of this
         Agreement, except as otherwise specified herein, the equivalent in
         Dollars of any Pounds Sterling and the equivalent in Pounds Sterling of
         any Dollars shall be determined by using the quoted spot rate at which
         the Agent offers to exchange Dollars for such Pounds Sterling or Pounds
         Sterling for such Dollars, as applicable, at its office in Cleveland,
         Ohio at 9:00 A.M. two Business Days prior to the Date on which such
         equivalent is to be determined; provided, that the equivalent in
         Dollars of each Advance made in Pounds Sterling shall be recalculated
         hereunder on each date that it shall be necessary (or the Agent shall
         elect) to determine the unused portion of each Bank's Commitment, of
         any or all Revolving Loans outstanding on such date.

                  SECTION 2.01 The following sentence is added after the second
         sentence of Section 2.01:

                  "Included as part of, but not in addition to, the forty-five
         million dollar amount of the Commitments is the Pounds Sterling Credit
         Facility, and Advances in Pounds Sterling may be obtained by the Parent
         in accordance with the terms and provisions of this Credit Agreement,
         provided that all Revolving Loans made as part of the same Borrowing by
         the Borrowing Group (or the Parent, as applicable) shall, unless
         otherwise specifically provided herein, consist of Revolving Loans of
         the same type


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         and currency; and provided, further, that the aggregate outstanding
         principal amount of Revolving Loans to the Parent denominated in Pounds
         Sterling shall not exceed $35,000,000 at any time outstanding."

                  SECTION 2.04 The following sentence is added after the second
         sentence of Section 2.04:

                  "Each Advance in Pounds Sterling shall be in an amount of not
         less than (pound)1,000,000, or multiples of (pound)500,000 in excess
         thereof, and at no time shall there be more than four (4) Borrowings in
         Pounds Sterling outstanding hereunder."

                               The following sentence is added after the fourth
         sentence of Section 2.04 (not taking into account the immediately
         preceding amendment):

                  "Whenever the Parent desires an Advance in Pounds Sterling,
         the Parent shall give the Agent prior to 11:00 A.M. (EST), at least
         four Business Days' prior written or telephonic notice (in the case of
         telephonic notice, promptly confirmed in writing if so requested by the
         Agent) of each Borrowing of Revolving Loans consisting of Pounds
         Sterling."

                               The following additional paragraphs are added at 
         the end of Section 2.04:

                  "In the case of a proposed Borrowing comprised of Revolving
         Loans which are denominated in Pounds Sterling, the obligation of each
         Bank to make its pro rata share of the Revolving Loan in Pounds
         Sterling as part of such Borrowing is subject to the confirmation by
         the Agent to the Parent not later than the fourth Business Day before
         the requested date of such Borrowing that Pounds Sterling is readily
         and freely transferable and convertible into Dollars. If the Agent
         shall not have provided the confirmation referred to above, the Agent
         shall promptly notify the Parent, whereupon the Parent may, by notice
         to the Agent not later than the third Business Day before the requested
         date of such Borrowing, withdraw its request relating to such requested
         Borrowing. If the Parent does so withdraw such request, the Borrowing
         requested shall not occur and the Agent shall promptly so notify each
         Bank. If the Parent does not so withdraw such request, the Agent shall
         promptly so notify each Bank and such request shall be deemed to be a
         request for a Borrowing which requests a Borrowing of Revolving Loans
         in an aggregate amount in Dollars equivalent, on the date the Agent so
         notifies each Bank, to the amount of the originally requested Borrowing
         in Pounds Sterling, and in such notice by the Agent to each Bank, the
         Agent shall state


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         such aggregate equivalent amount of such Borrowing in Dollars and such
         Bank's ratable portion of such Borrowing.

                  No later than 2:00 P.M. (EST) on the date specified in each
         request for Advance, subject to the notice requirements set forth
         herein, each Bank will make available its pro rata share of each
         Borrowing requested to be made on such date in the manner provided
         below. All amounts relating to any Borrowing by the Borrowing Group or
         the Parent (with respect to the Pounds Sterling Credit Facility) shall
         be made available to the Agent in Dollars or to the Pounds Sterling
         Agent in Pounds Sterling, as applicable, in immediately available funds
         at the Agent's office in Cleveland, Ohio or at the office of the Pounds
         Sterling Agent in the United Kingdom, with respect to a Borrowing under
         the Pounds Sterling Facility, and the Agent or the Pounds Sterling
         Agent, as applicable, promptly will make available to the Borrowing
         Group, or the Parent, as applicable, by depositing to its account with
         the Agent, or at such other account in another financial institution
         designated by the Borrowing Group or the Parent, as applicable, to the
         Agent, or to the Pounds Sterling Agent, as applicable, the aggregate of
         the amounts so made available in the currency and type of funds
         received.

                  With respect to any Borrowing in Dollars only, unless the
         Agent shall have been notified by either Bank prior to the date of a
         Borrowing that such Bank does not intend to make available to the Agent
         its portion of the Borrowing or Borrowings to be made on such date, the
         Agent may assume that such Bank has made such amount available to the
         Agent on such date of Borrowing, and the Agent, in reliance upon such
         assumption, may (in its sole discretion and without any obligation to
         do so) make available to the Borrowing Group or the Parent, as
         applicable, a corresponding amount. If such corresponding amount is not
         in fact made available to the Agent by such Bank and the Agent has made
         available same to the Borrowing Group or the Parent, as applicable, the
         Agent shall be entitled to recover such corresponding amount from such
         Bank. If such Bank does not pay such corresponding amount forthwith
         upon the Agent's demand therefor, the Agent shall promptly notify the
         Borrowing Group and the Borrowing Group shall immediately pay such
         corresponding amount to the Agent. The Agent shall also be entitled to
         recover from such Bank or the Borrowing Group, as the case may be,
         interest on such corresponding amount in respect of each day from the
         date such corresponding amount was made available by the Agent to the
         Borrowing Group or the Parent, as applicable, to the date such
         corresponding amount is recovered by the Agent at a rate per annum
         equal to (x) if paid by such Bank, at the overnight Federal Funds
         Effective Rate, in the case of any Revolving Loan denominated in
         Dollars, or at the weighted


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         average overnight or weekend borrowing rate for immediately available
         and freely transferrable funds in Pounds Sterling which is offered to
         the Agent in the international markets, in the case of any Revolving
         Loan denominated in Pounds Sterling, or (y) if paid by the Borrowing
         Group, the then applicable rate of interest, calculated in accordance
         with Section 2.05, for the respective Revolving Loan (but without any
         requirement to pay any amounts in respect thereof pursuant to Section
         2.10)."

                  SECTION 2.26 The heading "(i)" is inserted at the beginning of
         the first paragraph and the following paragraphs are added as numbers
         (ii) and (iii):

                           "(ii) If for the purposes of obtaining judgment in
                  any court or calculating any fee payable under this Credit
                  Agreement it is necessary to convert a sum due hereunder or
                  under a Revolving Note or any other sum in any currency (the
                  "Original Currency") into another currency (the "Other
                  Currency"), the parties hereby agree, to the fullest extent
                  permitted by law, that the rate of exchange used shall be that
                  at which in accordance with normal banking procedures each
                  Bank or (as applicable) the Agent (in its capacity as Agent)
                  could purchase the Original Currency with the Other Currency
                  after any premium and costs of exchange on the Business Day
                  preceding that on which final judgment is given or any fee is
                  to be paid.

                           (iii) The obligation of the Borrowing Group in
                  respect of any sum due from them to any Bank hereunder shall,
                  notwithstanding any judgment in an Other Currency, whether
                  pursuant to a judgment or otherwise, be discharged only to the
                  extent that, on the Business Day following receipt by any Bank
                  of any sum adjudged to be so due in such Other Currency, such
                  Bank may in accordance with normal banking procedures purchase
                  the Original Currency with such Other Currency. If the amount
                  of the Original Currency so purchased is less than the sum
                  originally due to such Bank in the Original Currency, the
                  applicable Borrower agrees, as a separate obligation and
                  notwithstanding any such judgment or payment, to indemnify
                  such Bank against such loss."

         SECTION 2.17. Section 2.17 is hereby deleted and replaced with the
following:

                  FACILITY FEE. The Borrowing Group shall pay to the Agent for
                  the ratable benefit of the Banks a facility fee at the per
                  annum rate set forth in the performance grid on the average
                  daily


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                  amount of each Commitment of such Bank, whether used or
                  unused; to be paid quarterly in arrears commencing on March
                  31, 1998, and thereafter on the last day of each Quarter and
                  on the termination of the Commitments.

         SECTION 2.19 Section 2.19(b) is hereby deleted and replaced with the
following:


                  (b)  NBD agrees that so long as (i) all of the Commitments
                  remain in effect, and (ii) NBD has an affiliate(s) which
                  issues Bank Guaranties, NBD's affiliate will, in NBD's name,
                  issue such Bank Guaranties for the account of any member of
                  the Borrowing Group if such member may from time to time
                  request subject, however, to the conditions of this Agreement.

         SECTION 2.31 The following new Section 2.31, entitled "VOLUNTARY
CONVERSION OF DOLLAR DENOMINATION REVOLVING LOANS; REDENOMINATION OF REVOLVING
LOANS.", is added at the end of Article II:

                  "Section 2.31 VOLUNTARY CONVERSION OF DOLLAR DENOMINATION
         LOANS; REDENOMINATION OF REVOLVING LOANS. (a) The Borrowing Group shall
         have the option to convert on any Business Day all or a portion at
         least equal to the applicable minimum Borrowing amount of the
         outstanding principal amount of its Revolving Loans denominated in
         Dollars and bearing interest at an Interest Option into a Borrowing or
         Borrowings at the other Interest Option, provided that: (i) no partial
         conversion of a Borrowing shall reduce the outstanding principal amount
         of any such Borrowing to less than the minimum Borrowing amount
         applicable thereto; (ii) any conversion from the Overall Libor Rate to
         the Base Rate shall be made on, and only on, the last day of an
         Interest Period for such Borrowing; (iii) any Borrowing at the Base
         Rate may only be converted into a Borrowing at the Overall Libor Rate
         if no Event of Default is in existence on the date of the conversion
         unless the Banks otherwise agree; and (iv) Borrowings under the Overall
         Libor Rate resulting from this Section 2.31 shall conform to the
         requirements of Section 2.04. Each such conversion shall be effected by
         the Borrowing Group giving the Agent at its principal place of
         business, prior to 11:00 A.M. (EST), at least three (3) business days'
         prior written notice (or telephonic notice promptly confirmed in
         writing if so requested by the Agent), specifying the Revolving Loan to
         be so converted, and the Interest Option to be converted into and, if
         to be converted into a borrowing at the Overall Libor Rate, the
         Interest Period to be initially applicable thereto. The Agent shall
         give each Bank prompt notice of any such proposed conversion affecting
         any of its Revolving Loans.


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         For the avoidance of doubt, the prepayment or repayment of any
         Revolving Loans out of the proceeds of other Revolving Loans by the
         Borrowing Group is not considered to be a conversion of a revolving
         into other Revolving Loans.

                  (b) The Parent may, upon notice to the Agent at least five (5)
         business days prior to the date of the proposed redenomination, request
         that all Revolving Loans comprising the same Borrowing by the Parent be
         redenominated from Dollars into Pounds Sterling, or from Pounds
         Sterling into Dollars; provided, however, that any redenomination of a
         Revolving Loan bearing interest at the Overall Libor Rate shall be made
         on, and only on, the last day of an Interest Period for such Revolving
         Loan; and provided, further, that no redenomination shall be made which
         would cause any Revolving Loan bearing interest at the Base Rate to be
         denominated in any currency other than Dollars. Each such notice of
         request of a redenomination shall be by telecopier, telex or cable
         (confirmed immediately in writing if so requested by the Agent),
         specifying (i) the Revolving Loans comprising the Borrowing to be
         redenominated, (ii) the date of the proposed redenomination (which
         shall be a business day), (iii) the currency into which such Revolving
         Loan is to be redenominated, and (iv) if such Revolving Loan if so
         redenominated is to bear interest at the Overall Libor Rate, the
         denomination of the Interest Period for such Revolving Loan upon being
         so redenominated. The Agent shall promptly notify each Bank of any such
         requested redenomination. In the case of a request for redenomination
         into Pounds Sterling, such redenomination is subject to the
         confirmation by each Bank to the Agent, not later than the third
         business date of such redenomination that such Bank agrees to such
         redenomination, which confirmation shall be notified immediately by the
         Agent to the Parent. If any Bank shall not have so provided to the
         Agent such confirmation, the requested redenomination will not occur
         and the Agent shall promptly notify the Parent and each Bank that a
         Bank has not provided such confirmation and that the requested
         redenomination will not occur. If each Bank shall have so provided the
         Agent such confirmation or if such request is for a redenomination into
         Dollars, each Revolving Loan so requested to be redenominated will be
         redenominated, on the date specified therefor in such notice of
         redenomination, into an equivalent amount thereof in the currency
         requested in such notice of redenomination, such equivalent amount to
         be determined in accordance with Section 1.03, and in the case of any
         such Revolving Loan being so redenominated which will bear interest at
         the Overall Libor Rate, such Revolving Loan will have an initial
         Interest Period as requested in such notice of redenomination.

         SECTION 2.28. The following clause is added at the end of Section 2.28:


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                  (iii) The proceeds of the Pounds Sterling Credit Facility
         shall be used by the Parent to finance the acquisition of the assets of
         IMI Kynoch Ltd., a United Kingdom Limited liability company and for
         general corporate purposes in accordance with the provisions of this
         Credit Agreement.

         ARTICLE VII. With respect to the negative covenants contained in
Article VII, Chart UK Investments Limited Partnership and Chart Marston Ltd. are
hereby excepted from all exclusions from such negative covenants in each case
where CHD is excepted from the exclusions from such negative covenants.

         SECTION 7.01. The following clause is added as new subsection 7.01
(xi):

                  "(xi)    any Indebtedness for Borrowed Money incurred by Chart
                  Marston Ltd. for purposes of covering overdrafts and providing
                  sufficient cash flow for such subsidiary, from a lending
                  institution in the United Kingdom, so long as the amount 
                  thereof does not exceed (pound)500,000."

         SECTION 7.04 Section 7.04 (iii) is hereby amended by deleting the
reference to the sum of "Nine Hundred Twenty Five Thousand dollars ($925,000)"
and replacing it with the sum "Two Million Dollars ($2,000,000)"

         In addition, the Banks hereby waive any default of Section 7.04 of the
Credit Agreement which arose during Fiscal Year 1997 as a result of the
aggregate annual rentals of all leases of the Companies exceeding $925,000, to
the extent such default is due to the Cryenco Acquisition.

         SECTION 7.05 Section 7.05 is hereby amended by deleting the reference
to "Ten Million Dollars ($10,000,000)" in Section 7.05(v)(B) and replacing it
with the sum "Six Million Dollars ($6,000,000)."

         The following clause is added at the end of Section 7.05(vi):

                  "and an Investment by Chart International, Inc. in the equity
                  securities of Chart Marston Ltd., not to exceed
                  (pound)21,000,000.

         The following clause is added as new Section 7.05(x):



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                  "any Guarantee by Chart International, Inc. of any current
                  liability owing by Chart Marston Ltd., not to exceed
                  (pound)500,000".

         SECTION 7.11 The following clause is added at the end of Section 7.11:

                  "except that this Section 7.11 shall not prohibit the
                  acquisition by Chart Marston Ltd. of the assets of IMI Kynoch
                  Ltd. for a sum not to exceed (pound)21,000,000."

         SECTION 7.12 The following sentence is added at the end of Section
7.12:

                  "Notwithstanding the foregoing, during each of Fiscal Years
                  1998 and 1999 only, the Companies will be permitted to make
                  Capital Expenditures in an amount not to exceed Eight Million
                  Dollars ($8,000,000), determined on a Consolidated basis."

         In addition, the Banks hereby waive any default of Section 7.12 of the
Credit Agreement which arose during Fiscal Year 1997 as a result of Capital
Expenditures in excess of the maximum amount permitted under Section 7.12, to
the extent such default is due to the purchase of the assets financed by
performance of that certain Loan Agreement dated July 1, 1996 among GE Capital
Public Finance, Inc., the City of LaCrosse, Wisconsin and ALTEC.

         SECTION 7.19 Section 7.19 is hereby amended by deleting the reference
to "Eighteen Million Dollars" ($18,000,000) and replacing it with "Forty-One
Million Dollars" ($41,000,000).

         SCHEDULE 4.01 Schedule 4.01 of the Credit Agreement is hereby deleted
and replaced with Schedule 4.01 attached hereto and incorporated herein.

         SCHEDULE 7.05 Schedule 7.05 of the Credit Agreement is hereby deleted
and replaced with Schedule 7.05 attached hereto and incorporated herein.

         4. CONDITIONS PRECEDENT. It is a condition precedent to the
effectiveness of this Amendment that, prior to or on the date hereof, (as to
items (A) and (E)(1) and (3), below); and prior to or on the date of funding the
first Advance under the Pounds Sterling Credit Facility (as to items (B), (C),
(D), (E)(2), (F), (G) and (H) below), the following items shall have been
delivered to Agent (in form and substance acceptable to Banks):



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                  (A) a counterpart original of this Amendment executed by Chart
         International, Inc., evidencing that Chart International, Inc. is a new
         member of the Borrowing Group as of the date hereof.

                  (B) a counterpart original of this Amendment executed by Chart
         UK Investments Limited Partnership and by Chart Marston Ltd.,
         acknowledging that each such entity is a "Company" and a "Subsidiary"
         pursuant to the Credit Agreement, as amended hereby, and therefore
         bound by the negative covenants contained in Article VII of the Credit
         Agreement, as amended hereby and the other terms and conditions
         applicable to Companies and Subsidiaries thereunder.

                  (C) a letter from Borrower's counsel setting forth the
         structure of the purchase of the assets of IMI Kynoch Ltd. and the
         reasons that CHD, Inc., Chart UK Investments Limited Partnership, and
         Chart Marston Ltd, cannot be members of the Borrowing Group.

                  (D) a Stock Pledge Agreement executed by Chart International,
         Inc. pledging sixty-six percent (66%) of the stock of Chart Marston
         Ltd. as security for the Credit Facility, and original share
         certificate(s), along with an executed stock power(s), perfecting the
         Agent's security interest in such stock.

                  (E) a Certificate of the secretary of each member of the
         Borrowing Group certifying (1) that such Borrower's Articles of
         Incorporation and Code of Regulations have not been amended since the
         execution of the Credit Agreement (or certifying that true, correct and
         complete copies of any amendments are attached), (2) that copies of
         resolutions of the Board of Directors of such Borrower are attached
         with respect to the approval of this Amendment and of the matters
         contemplated hereby and authorizing the execution, delivery and
         performance by such Borrower of this Amendment and each other document
         to be delivered pursuant hereto and (3) as to the incumbency and
         signatures of the officers of such Borrower signing this Amendment and
         each other document to be delivered pursuant hereto;

                  (F) copies of the organizational documents for each of Chart
         UK Investments Limited Partnership and Chart Marston Ltd.;

                  (G) reimbursement of all of Agent's out of pocket fees and
         expenses, including, without limitation attorneys' fees in
         consideration of Agent's preparation of this Amendment and its
         agreements herein;



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                  (H) such other documents as Agent may request to implement
         this Amendment and the transactions contemplated hereby.

If Banks and Agent shall consummate the transactions contemplated hereby prior
to the fulfillment of any of the conditions precedent set forth above, the
consummation of such transactions shall constitute only an extension of time for
the fulfillment of such conditions and not a waiver thereof.

         5. REPRESENTATIONS AND WARRANTIES. Borrower hereby represents and
warrants to Bank that:

                  (A) none of the representations and warranties made in Section
         6.01 of the Credit Agreement has ceased to be true and complete in any
         material respect as of the date hereof; and

                  (B) as of the date hereof no "Possible Default" has occurred
         that is continuing.

         6. ACKNOWLEDGMENTS CONCERNING OUTSTANDING LOANS. The Borrowing Group
acknowledges and agrees that, as of the date hereof, all of their outstanding
Obligations to Banks are owed without any offset, defense, claim or counterclaim
of any nature whatsoever.

         7. WAIVER. Banks and Agent hereby waive the provisions of Sections 7.01
and 7.05 of the Credit Agreement to the extent that those Sections would
prohibit the Parent from obtaining the foreign exchange facilities referred to
in this Amendment.

         8. REFERENCES. On and after the effective date of this Amendment, each
reference in the Credit Agreement to "this Agreement", "hereunder", "hereof", or
words of like import referring to the Credit Agreement, and each reference in
the Revolving Notes or other Loan Documents to the "Credit Agreement",
"thereof", or words of like import referring to the Credit Agreement shall mean
and refer to the Credit Agreement as amended hereby. The Credit Agreement, as
amended by this Amendment, is and shall continue to be in full force and effect
and is hereby ratified and confirmed in all respects. The execution, delivery
and effectiveness of this Amendment shall not operate as a waiver of any right,
power or remedy of Banks or Agent under the Credit Agreement or constitute a
waiver of any provision of the Credit Agreement except as specifically set forth
herein.

         9. COUNTERPARTS AND GOVERNING LAW. This Amendment may be executed in
any number of counterparts, each counterpart to be executed by one or more of
the parties but, when taken together, all counterparts shall constitute one
agreement. This Amendment, and the respective rights and obligations of the
parties hereto, shall be construed in accordance with and governed by Ohio law.


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         IN WITNESS WHEREOF, the Borrowing Group, Banks and Agent have executed
this Amendment at the time and place first above mentioned.




CHART INDUSTRIES, INC.                         PROCESS SYSTEMS INTERNATIONAL,
                                               INC.
                                            
By:  /s/ Don A. Baines                         By: /s/ Don A. Baines           
   -----------------------------------            ------------------------------------
Don A. Baines, Treasurer and CFO               Don A. Baines, Assistant Clerk

ALTEC INTERNATIONAL LIMITED                    NATIONAL CITY BANK
 PARTNERSHIP

By: CHART MANAGEMENT COMPANY,                  By: /s/ Anthony J. DiMare               
      INC., its sole general partner             -------------------------------------
                                               Anthony J. DiMare, Senior Vice President

By: /s/ Don A. Baines              
   -----------------------------------           
Don A. Baines, Secretary and Treasurer

ALTEC, INC.                                    NBD BANK

By: /s/ Don A. Baines                          By: /s/ Paul R. DeMelo
   -----------------------------------            -------------------------------------         
Don A. Baines, Assistant Secretary             Paul R. DeMelo, Vice President


GREENVILLE TUBE CORPORATION                            NATIONAL CITY BANK, as Agent


By: /s/ Don A. Baines                          By: /s/ Anthony J. DiMare                           
   -----------------------------------            -------------------------------------
Don A. Baines, Assistant Secretary             Anthony J. DiMare, Senior Vice President


CHART MANAGEMENT COMPANY, INC.                 CRYENCO SCIENCES, INC.

By: /s/ Don A. Baines                          By: /s/ Don A. Baines
   -----------------------------------            -------------------------------------                   
Don A. Baines, Secretary and Treasurer         Don A. Baines, Secretary and Treasurer




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CHART INDUSTRIES FOREIGN SALES
 CORPORATION                                                  CRYENCO, INC.

                                             
By: /s/ Don A. Baines                           By: /s/ Don A. Baines          
   -----------------------------------            ---------------------------------------       
Don A. Baines, Secretary and Treasurer            Don A. Baines, Secretary, Treasurer and
                                                  Chief Financial Officer


The undersigned hereby acknowledges and agrees that as of the date hereof it is
a member of the Borrowing Group, subject to all the terms and conditions of the
Credit Agreement, as amended.


CHART INTERNATIONAL, INC.

By: /s/ Don A. Baines
   ---------------------------------
        Don A. Baines, Treasurer and
        Chief Financial Officer



                                       14

   15


The undersigned hereby execute this Second Amendment to Credit Agreement in
order to acknowledge that each of them is a "Company" and a "Subsidiary" and
therefore bound by the terms and conditions of the Credit Agreement, as amended
hereby, applicable to Companies and Subsidiaries, including, without limitation,
the negative convenants contained in Article VII of the Credit Agreement,
subject to exception as provided herein. Notwithstanding the foregoing neither
of the undersigned is a member of the Borrowing Group nor liable for any payment
obligations under the Credit Agreement, as amended hereby.

CHART UK INVESTMENTS LIMITED PARTNERSHIP
By Chart Management, Inc.

By: /s/ Don A. Baines
    -------------------------------------------
    Don A. Baines, Secretary and Treasurer

CHART MARSTON LTD.

By: /s/ Don A. Baines
    -------------------------------------------
       Don A. Baines, Directory






                                       15

   16


                                 SCHEDULE 4.01
                                 -------------

COMPANY                                           GOOD STANDING
- -------                                           -------------
                                                  LOCATION(S)
                                                  ------------

- --------------------------------------------------------------------------------
Chart Industries, Inc.                              Delaware*
                                                    Ohio
- --------------------------------------------------------------------------------
ALTEC International Limited Partnership             Delaware*
                                                    Wisconsin
- --------------------------------------------------------------------------------
ALTEC, Inc.                                         Wisconsin*
- --------------------------------------------------------------------------------
Chart Management Company, Inc.                      Ohio*
- --------------------------------------------------------------------------------
Chart Industries Foreign Sales Corporation          U.S. Virgin Islands*
- --------------------------------------------------------------------------------
Process Systems International, Inc.                 Massachusetts*
                                                    New Hampshire
                                                    California
                                                    Ohio
                                                    Louisiana
                                                    Washington
- --------------------------------------------------------------------------------
Greenville Tube Corporation                         Arkansas*
                                                    Pennsylvania
- --------------------------------------------------------------------------------
CHD, Inc.                                           Delaware*
- --------------------------------------------------------------------------------
Chart Acquisition Company                           Delaware*
- --------------------------------------------------------------------------------
Cryenco Sciences, Inc.*                             Delaware*
                                                    Colorado**
- --------------------------------------------------------------------------------
Cryenco, Inc.*                                      Colorado*
- --------------------------------------------------------------------------------
Cryenex, Inc.                                       Delaware*
- --------------------------------------------------------------------------------
Chart International Inc.                            Delaware*
- --------------------------------------------------------------------------------
Chart Marston Limited                               United Kingdom*
- --------------------------------------------------------------------------------
Chart UK Investments Limited Partnership            United Kingdom*
- --------------------------------------------------------------------------------

*State of Organization


   17

                                     PART I
                                     ------

                                Capital Structure
                                -----------------

Owners of Chart Industries, Inc. common stock include:

Arthur S. Holmes              2,656,737 shares directly       18.4%
                              2,654,340 shares indirectly     18.4%

Charles S. Holmes             1,497,157 shares directly       10.3%
                                 26,000 shares indirectly      0.2%

Gintel Equity Management      1,356,750 shares                 9.4%
                              beneficially


     Chart Industries, Inc. owns:

     30,000 shares AlTEC, Inc. (100%)
        100 shares Chart industries Foreign Sales Corporation (100%)
        750 shares Chart Management Company, Inc. (100%)
      6,840 shares Greenville Tube Corporation (100%)
        200 shares Process Systems International, Inc. (100%)
            shares of Chart International Inc. (100%)

   18
Part I cont'd

     ALTEC, Inc. owns:

     1,500 shares CHD, Inc. (100%)

     Greenville Tube Corporation owns:

     1000 shares of Chart Acquisition Company (100%)

     In addition, the ALTEC International Limited Partnership is owned:

     95% by CHD, Inc. and
      5% by Chart Management Company, Inc.
     The Chart International Limited Partnership is owned:

     96% by CHD, Inc. and
      2% by Chart Management Company, Inc.

     Chart International Inc. owns:

     2 shares of Chart Marston Limited (100%)


                                    PART II
                                    -------

                        Indebtedness for Borrowed Money
                        -------------------------------

Process Engineering Division of Process systems International, Inc. - $80,000.00
Note payable to BancBoston Ventures, 100 Federal St., Boston, MA 02110,
principal payments of $4,000.00 plus accrued interest at 10% per annum payable
on the first day of each January, April, July and October until July 1, 1997.
The current principal balance is $4,000.00.

ALTEC International Limited Partnership and Chart Industries, Inc. -
$5,000,000.00 Industrial Development Revenue Bonds dated July 1, 1996 to GE
Capital Public Finance, Inc. as Lender and to the City of LaCrosse, Wisconsin as
issuer. The bonds are collateralized in the next five years as follows: 1997 -
$361,000; 1998 - $405,000; 1999 - $431,000; 2000 - $459,000 and 2001 - $489,000.
The Company is required to spend these monies on the current expansion and has
commitments with vendors covering this work. All funds should be released from
escrow by the end of 1997. The current balance is $4,634,000.00.

USL Capital, Lessor
Cryenco Sciences, Inc., Lessee
   19
Items Leased:  Forklift, Overhead Crane, Paint Booths, Compressor
Outstanding Balance as of July 31, 1997: $148,107.35
Monthly Payment: $8,266.29
Lease Expires:  May, 1999

USL Capital, Lessor
Cryenco Sciences, Inc., Lessee
Items Leased: Telephone System, Computer system, Copy Machine
Outstanding Balance as of July 31, 1997:  $213,990.96
Monthly Payment:  $6,692.16
Lease Expires:  November, 2000



   20

                                 SCHEDULE 7.05
                                 -------------

                              Existing Investments
                              --------------------

Besides the investments set forth on Schedule 4.01, the Companies have the
following investments:

                  Process Systems International, Inc. has a $2,000.00 investment
                  in founders stock of Paramag, a corporation which has been
                  developing processes which would use Process Systems
                  International, Inc. equipment.

                  Chart Industries, Inc. periodically makes overnight
                  investments of idle cash through National City Bank.

                  Chart Industries, Inc. has (in connection with the Chart
                  Marston Limited acquisition of IMI Kynoch Ltd.), invested
                  approximately 17.5 million dollars in Chart UK Investment
                  Limited Partnership through its partners Chart Management
                  Company, Inc. and CHD, Inc. Chart UK Investment Limited
                  Partnership lends 17.5 million dollars to Chart Marston
                  Limited on a 364 day basis.

                  Chart Industries, Inc. has (in connection with the Chart
                  Marston Limited acquisition of IMI Kynoch Ltd.), invested
                  approximately 4 million pounds sterling in Chart International
                  Inc. which lends that sum to Chart Marston Limited on a 364
                  day basis.

                  +Cryenco, Inc., a wholly-owned subsidiary of Cryenco Sciences,
                  Inc., owns 50% of Cryomex S.A. de C.V.



+ Upon consummation of the Cryenco Sciences, Inc. acquisition