Document:

Exhibit 4.1
                             MODIFICATION AGREEMENT
                             ----------------------

         THIS  MODIFICATION  AGREEMENT made as of the 26th day of June,  2000 by
and among ALTAIR INTERNATIONAL INC., an Ontario corporation (the "Company"), and
ANDERSON LLC, a Cayman Islands limited liability company ("Purchaser").

                              W I T N E S S E T H:
                              --------------------

         WHEREAS,  the parties hereto have previously executed and delivered the
Transaction  Documents,  as more particularly defined in the Securities Purchase
Agreement  dated  March  31,  2000 (a copy of  which  has  been  filed  with the
Securities and Exchange Commission as an Exhibit to the Company's Form 8-K dated
April 7, 2000); and

         WHEREAS, the parties have agreed to modify certain terms and provisions
of the Securities Purchase Agreement.

         NOW , THEREFORE, it is agreed by and between the parties as follows:

         1. Sections 2.4, 2.5 and 2.6 of the Securities  Purchase  Agreement are
hereby amended to read as follows:

                                       1
<PAGE>

         "2.4 Second  Repricing  Period.  The "Second  Repricing  Period"  shall
         commence on the day immediately  following the First  Repricing  Period
         and end thirty (30) days thereafter.  If the lowest average Closing Bid
         Price  for any ten (10) (not  necessarily  consecutive)  Business  Days
         during the Second Repricing Period (the "Second Repricing  Price"),  is
         not equal to or greater than 120% of the Initial Closing Price, then up
         to one-fourth (1/4) of the Initial Shares,  and any Shares not repriced
         during a prior  Repricing  Period,  (such  number  of  Shares  shall be
         determined  by Purchaser  and  reported to the Company  within ten (10)
         days following the conclusion of the Second Repricing  Period) shall be
         repriced,  (the "Second Repriced  Shares").  The Company shall issue to
         Purchaser  the number of additional  Shares as determined  according to
         the following formula:

         ((1.20 x Initial Closing Price) - Second Repricing Price) x (#
            of the Second Repriced Shares) / Second Repricing Price."

         "2.5 Third Repricing  Period.  (a) The "Third  Repricing  Period" shall
         commence on the day immediately  following the Second  Repricing Period
         and end thirty (30) days thereafter.  If the lowest average Closing Bid
         Price  for any ten (10) (not  necessarily  consecutive)  Business  Days
         during the Third Repricing Period (the "Third Repricing Price"), is not
         equal to or  greater  than 125% of the  Initial  Closing  Price,  up to
         one-fourth  (1/4) of the Initial  Shares,  and any Shares not  repriced
         during  a prior  Repricing  Period  (such  number  of  Shares  shall be
         determined  by Purchaser  and  reported to the Company  within ten (10)
         days following the conclusion of the Third Repricing Period),  shall be
         repriced  (the "Third  Repriced  Shares").  The Company  shall issue to
         Purchaser  the number of additional  Shares as determined  according to
         the following formula:

          ((1.25 x Initial Closing Price) - Third Repricing Price) x (#
             of the Third Repriced Shares) / Third Repricing Price."

                                       2
<PAGE>

         "2.6 Fourth Repricing  Period.  (a) The "Fourth Repricing Period" shall
         commence on the day immediately  following the Third  Repricing  Period
         and end one hundred twenty (120) days thereafter. If the lowest average
         Closing  Bid for any ten (10) (not  necessarily  consecutive)  Business
         Days during one or more thirty (30) consecutive day periods as selected
         by Purchaser,  after the commencement of the Fourth Repricing Period is
         not equal to or greater than 130% of the Initial Closing Price,  all of
         the Initial Shares not repriced during a prior Repricing Period,  shall
         be repriced (the "Fourth Repriced Shares"). Such number of Shares shall
         be determined by Purchaser and reported to the Company  within ten (10)
         days following the conclusion of the relevant period. The Company shall
         issue to  Purchaser  the  number of  additional  Shares  as  determined
         according to the following formula:

         ((1.30 x Initial Closing Price) - Fourth Repricing Price) x (#
            of the Fourth Repriced Shares) / Fourth Repricing Price.

         There  may be more  than one  Repricing  during  the  Fourth  Repricing
Period."

         2. Section 8.3 and 8.4 of the Securities  Purchase Agreement are hereby
amended to read as follows:

         "8.3 First  Right.  The  Company  shall not,  directly  or  indirectly,
         without the prior written consent of Purchaser,  offer, sell, grant any
         option to  purchase,  or  otherwise  dispose of (or announce any offer,
         sale, grant or any option to purchase or other  disposition) any of its
         Common  Stock or  securities  convertible  into Common Stock at a price
         that is less than the market  price of the Common  Stock at the time of
         issuance of such security or investment (a "Subsequent  Financing") for
         a period of three  hundred  and sixty  (360) days  after the  Effective
                                       3
<PAGE>

         Date,  or the  redemption  of all the Shares,  whichever  first occurs,
         except (i) the granting of options or warrants to employees,  officers,
         directors and consultants,  and the issuance of shares upon exercise of
         options granted,  under any stock option plan heretofore or hereinafter
         duly adopted by the Company,  (ii) shares  issued upon  exercise of any
         currently  outstanding  warrants or options and upon  conversion of any
         currently outstanding  convertible debenture, in each case disclosed in
         Section 4.4 or Schedule 4.4, (iii) securities issued in connection with
         the  capitalization  or  creation of a joint  venture  with a strategic
         partner,  (iv) shares  issued to pay part or all of the purchase  price
         for the acquisition by the Company of a person (which,  for purposes of
         this  clause  (iv),  shall  not  include  an  individual  or  group  of
         individuals),  (v) the  offering  of shares of Common  Stock at a price
         equal to the  then-prevailing  market,  not  exceeding 10% of the prior
         week's  trading  volume;  and (vi) shares  issued in a bona fide public
         offering  by the  Company of its  securities,  unless  (A) the  Company
         delivers to  Purchaser  a written  notice  (the  "Subsequent  Financing
         Notice") of its intention to effect such  Subsequent  Financing,  which
         Subsequent  Financing  Notice shall  describe in reasonable  detail the
         proposed  terms of such  Subsequent  Financing,  the amount of proceeds
         intended to be raised thereunder,  the person with whom such Subsequent
         Financing  shall be  effected,  and  attached  to which shall be a term
         sheet or similar document  relating thereto and (B) Purchaser shall not
         have  notified  the  Company by 5:00 p.m.  (New York time) on the tenth
         (10th)  Business  Day after its  receipt  of the  Subsequent  Financing
         Notice of its willingness to provide, subject to completion of mutually
         acceptable documentation, financing to the Company on substantially the
         terms set forth in the Subsequent  Financing Notice. If Purchaser shall
         fail to  notify  the  Company  of its  intention  to  enter  into  such
         negotiations  within such time period,  then the Company may effect the
         Subsequent  Financing  substantially  upon the terms and to the persons
         (or affiliates of such persons) set forth in the  Subsequent  Financing
         Notice; provided that the Company shall provide Purchaser with a second
         Subsequent  Financing Notice,  and Purchaser shall again have the right
         of first refusal set forth above in this Section 8.3, if the Subsequent
         Financing subject to the initial Subsequent  Financing Notice shall not
         have  been  consummated  for any  reason on the terms set forth in such
         Subsequent  Financing  Notice within sixty (60) Business Days after the
         date of the initial Subsequent  Financing Notice with the person (or an
         affiliate  of  such  person)  identified  in the  Subsequent  Financing
         Notice.  The rights  granted to  Purchaser  in this Section 8.3 are not
         subject to any prior right of first  refusal  given to any other person
         except as disclosed on Schedule 4.4.

                                       4
<PAGE>

         8.4 Certain  Agreements.  (a) The Company  covenants and agrees that it
         will not,  without the prior written  consent of Purchaser,  enter into
         any  subsequent  or further offer or sale of Common Stock or securities
         convertible into Common Stock with any third party until the date which
         is one hundred eighty (180) days after the Effective  Date,  unless all
         of the Initial Shares and  Additional  Shares held by the Investor have
         been  redeemed by the Company.

         (b) The  provisions  of Sections  8.3 and 8.4(a) will not apply to: (u)
         the grant of any option,  warrant or other  right to acquire  shares of
         the Common  Stock  (including  the exercise or  conversion  of any such
         option, warrant or right) granted to employees, officers, directors and
         consultants  of the Company;  (v) Common  Stock  issued  pursuant to an
         exemption  from  registration  under the Securities  Act,  provided the
         holder  thereof is required to hold such Common  Stock for at least one
         year from the date of issuance;  (w) an underwritten public offering of
         shares of Common Stock; (x) the offering of shares of Common Stock at a
         price equal to the  then-prevailing  market,  not  exceeding 10% of the
         prior week's  trading  volume;  (y) shares  issued upon exercise of any
         currently  outstanding  warrants or options and upon  conversion of any
         currently outstanding  convertible debenture, in each case disclosed in
         Section 4.4 or Schedule 4.4, (z) the issuance of securities (other than
         for cash) in connection with a merger,  consolidation,  sale of assets,
         disposition  or the exchange of the capital stock for assets,  stock or
         other  joint  venture  interests;   and  provided  further,  that  such
         securities would not be included in the Registration Statement relating
         to the Initial Shares and a  registration  statement in respect of such
         stock shall not be filed  prior to sixty (60) days after the  Effective
         Date."

         3. Except as specifically  set forth herein,  nothing  contained herein
         shall in any way be deemed to  effect  or modify  the  representations,
         warranties,  rights and  obligations of the  respective  parties as set
         forth in the Transaction Documents.

                                       5
<PAGE>

         4. As hereby modified and amended, the Transaction  Documents remain in
         full force and effect.

         5. The Company  undertakes,  within ten (10) Business Days, to file any
         necessary amendment to the Registration  Statement currently filed with
         the Securities and Exchange  Commission in respect of the resale of the
         Shares.

         WHEREFORE,  the parties  have  executed  this  agreement as of the date
         first above written.

                             ALTAIR INTERNATIONAL, INC.

                             By: ________________________________
                                      Name: ________________________
                                      Title: _________________________

                             ANDERSON LLC

                             By: _________________________________
                                      Name: _________________________
                                      Title: _________________________<PAGE>

                                                                 EXHIBIT 10.41A

                SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT

  THIS SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT (this "Amendment") is
made and entered into this 18th day of May, 2000, by and between PAMECO
CORPORATION, a Georgia corporation with its chief executive office and
principal place of business at 1000 Center Place, Norcross, Georgia 30093
("Borrower"); and FLEET CAPITAL CORPORATION, a Rhode Island corporation with
an office at 300 Galleria Parkway, N.W., Suite 800, Atlanta, Georgia 30339
("Agent"), in its capacity as collateral and administrative agent for the
Lenders (as defined in the Loan Agreement referenced below); and Lenders.

                                   Recitals:

  Lenders, Agent and Borrower are parties to a certain Loan and Security
Agreement dated February 17, 2000, as amended by that certain First Amendment
to Loan and Security Agreement dated February 29, 2000 (the "Loan Agreement"),
pursuant to which Lenders may make certain loans and other extensions of
credit to Borrower from time to time.

  The parties desire to amend the Loan Agreement as hereinafter set forth.

  NOW, THEREFORE, for TEN DOLLARS ($10.00) in hand paid and other good and
valuable consideration, the receipt and sufficiency of which are hereby
severally acknowledged, the parties hereto, intending to be legally bound
hereby, agree as follows:

  1. Definitions. All capitalized terms used in this Amendment, unless
otherwise defined herein, shall have the meaning ascribed to such terms in the
Loan Agreement.

  2. Amendments to Loan Agreement. The Loan Agreement is hereby amended as
follows:

  (a) By deleting the definition of "Consolidated Net Worth" from Appendix A
  to the Loan Agreement and by substituting the following new definition in
  lieu thereof:

     Consolidated Net Worth--on any date of determination thereof, the sum on
  such date of (i) the Consolidated net worth of Borrower and its
  Subsidiaries after deducting therefrom the amount of all intangible items
  reflected therein, including all unamortized debt discount and expense,
  unamortized research and development expense, unamortized deferred charges,
  goodwill, patents, trademarks, service marks, trade names, copyrights,
  unamortized excess cost of investment in Subsidiaries over equity at dates
  of acquisition and all similar items that could properly be treated as
  intangibles in accordance with GAAP, (ii) Subordinated Debt, (iii) accrued
  but undeclared Distributions with respect to preferred stock as reflected
  on a Consolidated balance sheet of Borrower and its Subsidiaries and (iv)
  the $35,000,000 investment in Series A redeemable preferred stock and
  warrants of Borrower made by Littlejohn and Quilvest on the Closing Date.

  (b) By adding the following new clause (xi) to Section 9.2.3 of the Loan
  Agreement that reads as follows:

     (xi) Any Debt evidenced by the Series A Preferred Shares of Borrower
  that have been issued by Borrower as of the Closing Date pursuant to the
  Securities Purchase Agreement.

  (c) By deleting Section 9.3.1 of the Loan Agreement and by substituting the
  following new Section 9.3.1 in lieu thereof:

     9.3.1. Consolidated Net Worth. Maintain a Consolidated Net Worth of at
  least $20,000,000, tested as of the last day of each month; provided,
  however, that the foregoing amount shall be increased as of the last day of
  the second month following the end of each Fiscal Quarter, commencing with
  the Fiscal Quarter ending May 31, 2001, by an amount equal to 50% of
  Consolidated Net Income during each such Fiscal Quarter, but no reduction
  in the foregoing amount shall be made if Consolidated Net Income in any
  Fiscal Quarter is a negative number.
<PAGE>

  1. Ratification and Reaffirmation. Borrower hereby ratifies and reaffirms
the Obligations, each of the Loan Documents and all of Borrower's covenants,
duties, indebtedness and liabilities under the Loan Documents.

  1. Acknowledgments and Stipulations. Borrower acknowledges and stipulates
that the Loan Agreement and the other Loan Documents executed by Borrower are
legal, valid and binding obligations of Borrower that are enforceable against
Borrower in accordance with the terms thereof; all of the Obligations are
owing and payable without defense, offset or counterclaim (and to the extent
there exists any such defense, offset or counterclaim on the date hereof, the
same is hereby waived by Borrower); and the security interests and Liens
granted by Borrower in favor of Agent, for the benefit of itself and Lenders,
are duly perfected, first priority security interests and Liens.

  1. Representations and Warranties. Borrower represents and warrants to Agent
and Lenders, to induce Agent and Lenders to enter into this Amendment, that no
Default or Event of Default exists on the date hereof other than the
Designated Defaults referenced in Section 6; the execution, delivery and
performance of this Amendment have been duly authorized by all requisite
corporate action on the part of Borrower and this Amendment has been duly
executed and delivered by Borrower; and all of the representations and
warranties made by Borrower in the Loan Agreement are true and correct on and
as of the date hereof.

  1. Limited Waiver of Default. Events of Default have occurred and currently
exist under the Loan Agreement as a result of Borrower's breach of Section
9.3.1 of the Loan Agreement (the "Designated Defaults"). The Designated
Defaults exist because of Borrower's failure to maintain Consolidated Net
Worth of at least $54,000,000 as of the fiscal periods ending February 29 and
March 31, 2000. Borrower represents and warrants that the Designated Defaults
are the only Default or Event of Default that exist under the Loan Agreement
and the other Loan Documents as of the date hereof. Agent and Lenders hereby
waive the Designated Default in existence on the date hereof. In no event
shall such waiver be deemed to constitute a waiver of (a) any Default or Event
of Default other than the Designated Defaults in existence on the date of this
Amendment or (b) Borrower's obligation to comply with all of the terms and
conditions of the Loan Agreement and the other Loan Documents from and after
the date hereof. Notwithstanding any prior, temporary mutual disregard of the
terms of any contracts between the parties, Borrower hereby agrees that it
shall be required strictly to comply with all of the terms of the Loan
Documents on and after the date hereof.

  1. Breach of Amendment. This Amendment shall be part of the Loan Agreement
and a breach of any of any representation, warranty or covenant herein shall
constitute an Event of Default.

  1. Expenses of Agent. Borrower agrees to pay, on demand, all costs and
expenses incurred by Agent in connection with the preparation, negotiation and
execution of this Amendment and any other Loan Documents executed pursuant
hereto and any and all amendments, modifications, and supplements thereto,
including, without limitation, the costs and fees of Agent's legal counsel and
any taxes or expenses associated with or incurred in connection with any
instrument or agreement referred to herein or contemplated hereby.

  1. Effectiveness; Governing Law. This Amendment shall be effective upon
execution by Borrower and acceptance by Agent in Atlanta, Georgia (notice of
which acceptance is hereby waived), whereupon the same shall be governed by
and construed in accordance with the internal laws of the State of Georgia.

  1. Successors and Assigns. This Amendment shall be binding upon and inure to
the benefit of the parties hereto and their respective successors and assigns.

  1. No Novation, etc. Except as otherwise expressly provided in this
Amendment, nothing herein shall be deemed to amend or modify any provision of
the Loan Agreement or any of the other Loan Documents, each of which shall
remain in full force and effect. This Amendment is not intended to be, nor
shall it be construed to create, a novation or accord and satisfaction, and
the Loan Agreement as herein modified shall continue in full force and effect.

                                       2
<PAGE>

  1. Counterparts; Telecopied Signatures. This Amendment may be executed in
any number of counterparts and by different parties to this Amendment on
separate counterparts, each of which, when so executed, shall be deemed an
original, but all such counterparts shall constitute one and the same
agreement. Any signature delivered by a party by facsimile transmission shall
be deemed to be an original signature hereto.

  1. Further Assurances. Borrower agrees to take such further actions as Agent
shall reasonably request from time to time in connection herewith to evidence
or give effect to the amendments set forth herein or any of the transactions
contemplated hereby.

  1. Section Titles. Section titles and references used in this Amendment
shall be without substantive meaning or content of any kind whatsoever and are
not a part of the agreements among the parties hereto.

  1. Waiver of Jury Trial. To the fullest extent permitted by Applicable Law,
the parties hereto each hereby waives the right to trial by jury in any
action, suit, counterclaim or proceeding arising out of or related to this
Amendment.

  IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly
executed under seal in Atlanta, Georgia, and delivered by their respective
duly authorized officers on the date first written above.

                                          PAMECO CORPORATION
ATTEST:

                                          By: _________________________________
___________________________________

                                             Name: ____________________________
___________________________________

                                             Title: ___________________________
Name:  ____________________________

                                          FLEET CAPITAL CORPORATION, as Agent
Title:  ___________________________

                                          By: _________________________________

                                             Title: ___________________________

                                          FLEET CAPITAL CORPORATION, as a
                                          Lender

                                          By: _________________________________

                                             Title: ___________________________

                                          MELLON BANK, N.A., as a Lender

                                          By: _________________________________

                                             Title: ___________________________

                                          FOOTHILL CAPITAL CORPORATION, as a
                                          Lender

                                          By: _________________________________

                                             Title: ___________________________

                   [Signatures continued on following page]

                                       3
<PAGE>

                                          THE CIT GROUP/BUSINESS CREDIT, INC.,
                                          as a Lender

                                          By: _________________________________

                                             Title: ___________________________

                                          BANK OF AMERICA, N.A., as a Lender

                                          By: _________________________________

                                             Title: ___________________________

                                          WACHOVIA BANK, N.A., as a Lender

                                          By: _________________________________

                                             Title: ___________________________

                                       4
<PAGE>

                           CONSENT AND REAFFIRMATION

  The undersigned guarantor of the Obligations of Borrower at any time owing
to Agent and Lenders hereby: (i) acknowledges receipt of a copy of the
foregoing Second Amendment to Loan and Security Agreement; (ii) consents to
Borrower's execution and delivery thereof and of the other documents,
instruments or agreements Borrower agrees to execute and deliver pursuant
thereto; (iii) agrees to be bound thereby; and (iv) affirms that nothing
contained therein shall modify in any respect whatsoever its guaranty of the
Obligations and reaffirms that such guaranty is and shall remain in full force
and effect.

  IN WITNESS WHEREOF, the undersigned has executed this Consent and
Reaffirmation in Atlanta, Georgia, on the date of such Second Amendment to
Loan and Security Agreement.

                                          PAMECO INVESTMENT COMPANY, INC.

                                          By: _________________________________

                                              Title: __________________________

                                          Attest: _____________________________

                                              Title: __________________________

                                              [CORPORATE SEAL]

                                       5

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