Document:

THIRD AMENDMENT TO DEFERRAL AND WAIVER AGREEMENT

      THIS THIRD AMENDMENT TO DEFERRAL AND WAIVER AGREEMENT is made and entered
into this 2ND day of MAY, 2000, by and between KEYBANK NATIONAL ASSOCIATION, a
national banking association ("LENDER") and DYNAMIC MATERIALS CORPORATION, a
Delaware corporation (the "COMPANY").

                                    RECITALS

      A.     On December 31, 1998, the Company and Lender entered into a First
Amendment to Amended and Restated Credit Facility and Security Agreement ("FIRST
AMENDMENT"), which amended the terms of a November 30, 1998 Amended and Restated
Credit Facility and Security Agreement (the First Amendment and the Amended and
Restated Credit Facility and Security Agreement shall be hereinafter
collectively referred to as the "CREDIT AGREEMENT"). Pursuant to the terms of
the First Amendment, Lender agreed to provide credit facilities to the Company
in an aggregate principal amount of up to $14,000,000, consisting of an
Acquisition Line with a maximum credit limit of $5,700,000, an Accommodation
Line with a maximum credit limit of $2,300,000, and a Working Capital Credit
Line with a maximum credit limit of $6,000,000.

      B.     By letter dated July 21, 1999, Lender waived for the period ended
September 30, 1999 certain of the Company's covenant defaults under the Credit
Agreement and under that certain Reimbursement Agreement between the parties
dated as of September 1, 1998, executed in connection with Lender's issuance of
a letter of credit to support principal and interest payments under certain
industrial development revenue bonds (the Credit Agreement and the Reimbursement
Agreement are sometimes hereinafter collectively referred to as the "LOAN
DOCUMENTS"). In addition, by letter dated September 30, 1999, Lender deferred
until October 15, 1999 certain principal payments that were required to be made
by the Company on September 30, 1999.

      C.     On or about October 15, 1999, Company and Lender executed a
Deferral and Waiver Agreement, pursuant to which Lender agreed, conditioned upon
certain undertakings and covenants of Company, to forbear from declaring any
further defaults under the Loan Documents, to accelerate amounts due thereunder,
or to otherwise exercise its rights and remedies under the Loan Documents for
the period from October 16, 1999 to December 30, 1999 (the "INITIAL DEFERRAL
PERIOD").

      D.     On or about December 30, 1999, Company and Lender executed a First
Amendment to Deferral and Waiver Agreement pursuant to which Lender agreed,
conditioned upon certain undertakings and covenants of Company, to forbear from
declaring any further defaults under the Loan Documents, to accelerate amounts
due thereunder, or to otherwise exercise its rights and remedies under the loan
documents for the period from December 30, 1999 to March 30, 2000 (the "SECOND
DEFERRAL PERIOD").

      E.     On or about March 27, 2000, Company and Lender executed a Second
Amendment to Deferral and Waiver Agreement pursuant to which Lender agreed,
conditioned upon certain

<PAGE>

undertakings and covenants of Company, to forbear from declaring any further
defaults under the Loan Documents, to accelerate amounts due thereunder or to
otherwise exercise its rights and remedies under the Loan Documents for the
period from March 30, 2000 to May 15, 2000.

      F.     Company has requested that Lender enter into this Third Amendment
to Deferral and Waiver Agreement in order to give the Company additional time to
close that certain Stock Purchase Agreement dated January 20, 2000, as amended,
between Company and SNPE, Inc..

      G.     Lender is willing to enter into this Third  Amendment  to Deferral
and Waiver Agreement, but only upon the terms and conditions set forth herein.

      NOW, THEREFORE, in consideration of the above Recitals and for other good
and valuable consideration, the receipt and adequacy of which are hereby
mutually acknowledged, the parties do hereby agree as follows:

      1.     AFFIRMATION OF RECITALS. The Recitals set forth above are true and
correct and are incorporated herein by this reference.

      2.     ACKNOWLEDGMENT OF INDEBTEDNESS. Company acknowledges that as of the
date hereof, the following loan balances are outstanding from Company to Lender:

             Principal amount outstanding under
             Acquisition Line                              $4,930,000.00

             Principal amount outstanding under
             Accommodation Line                            $2,300,000.00

             Of the foregoing amounts, Company further acknowledges that the
following amounts are due and owing to Lender as of the date hereof (the
"Current Principal Loan Payments"):

             Current Principal Loan Payment due
             under Acquisition Line                        $777,272.73

             Current Principal Loan Payment due
             under Accommodation Line                      $690,000.00

      3.     LENDER'S FORBEARANCE. Provided that Company is not in default under
the terms of this Third Amendment to Deferral and Waiver Agreement, Lender
agrees not to declare any further defaults under the Loan Documents, to
accelerate the amounts due under the Loan Documents, or to otherwise exercise
its other rights and remedies under the Loan Documents for the period from May
15, 2000 to June 30, 2000 (the "THIRD AMENDED DEFERRAL Period"). The Current
Principal Loan Payments referred to in paragraph 2 above, together with accrued
interest shall be due and payable on the earlier of (i) June 30, 2000, or (ii)
the closing date of the transaction referred to in Recital F above.

                                       2

<PAGE>

      4.     WAIVER OF COVENANT VIOLATIONS. Provided that the Company is not in
default hereunder, Lender agrees, during the Third Amended Deferral Period, to
waive the Company's Covenant Defaults under the Loan Documents.

      5.     NO DEFENSES, WAIVERS. As of the date of this Third Amendment to
Deferral and Waiver Agreement, the Principal Loan Payments set forth in
paragraph 2 above are due and payable by the Company to Lender, and the Company
acknowledges that it has no defense, offset, or counterclaims to any of
Company's obligations under the Loan Documents. To the extent that any such
defenses, claims or offsets exist as of the date hereof, they are hereby waived
and released in consideration of Lender's execution of this Third Amendment to
Deferral and Waiver Agreement. Company has duly authorized, executed and
delivered this Third Amendment to Deferral and Waiver Agreement to Lender, and
the Company acknowledges that the Loan Documents are valid and enforceable in
accordance with their terms against the Company.

      6.     DEFAULTS. The occurrence of any one or more of the following shall
constitute a default under this Third Amendment to Deferral and Waiver
Agreement:

             (i)   the untruth of any representation or warranty contained in
this Third Amendment to Deferral and Waiver Agreement, or the existence of a
misrepresentation of fact or fraud contained in any document or information
heretofore or hereafter submitted or communicated to Lender in support of this
Third Amendment to Deferral and Waiver Agreement;

             (ii)  breach or violation of any terms, covenant or condition
contained in this Third Amendment to Deferral and Waiver Agreement;

             (iii) any other default (other than non-payment of principal
acknowledged in paragraph 2 above and the Company's Covenant Defaults referred
to in paragraph 4 above) under any of the Loan Documents;

             (iv)  any variation by Two Hundred and Fifty Thousand Dollars
($250,000) or more (on a cumulative basis) between (i) the proforma cash flow
summary (September 21, 1999 update) and monthly income statement summary
(September 21, 1999 update) which have been submitted by the Company to Lender
in accordance with the Loan Documents and (ii) the actual cash flow and
operating income of the Company calculated and submitted to Lender within twenty
(20) days following the end of each calender month during the Third Amended
Deferral Period; or

             (v)   termination of the January 20, 2000 Stock Purchase Agreement,
as amended, between the Company and SNPE, Inc.

      7.     TERMINATION; REMEDIES. Immediately following the occurrence of any
default under this Third Amendment to Deferral and Waiver Agreement, Lender may,
at its option, (i) terminate its obligations to waive Covenant Defaults and
defer payments as contained herein without notice or

                                       3

<PAGE>

demand to the Company and (ii) pursue any other remedies available to it under
the Loan Documents or otherwise. If not sooner terminated, Lender's obligation
to waive Covenant Defaults and defer payments as set forth herein shall
terminate automatically and without notice to or action by Company on June 30,
2000.

      8.     NO WAIVER OF REMEDIES. Lender expressly reserves any and all rights
and remedies available to it under this Third Amendment to Deferral and Waiver
Agreement and the Loan Documents, at law or in equity in the event the Company
defaults under this Third Amendment to Deferral and Waiver Agreement. No failure
to exercise, or delay by Lender in exercising, any right, power or privilege
hereunder shall preclude any other or further exercise thereof, or the exercise
of any other right, power or privilege. The rights and remedies provided in this
Third Amendment to Deferral and Waiver Agreement and the Loan Documents are
cumulative and not exclusive of each other or of any right or remedy provided by
law or in equity. Except as expressly provided in the Loan Documents, no notice
to or demand upon the Company in any instance shall, in itself, entitle the
Company to any other or further notice or demand in similar or other
circumstances or constitute a waiver of the right of Lender to any other or
further action in any circumstances without notice or demand.

      9.     EXPENSES; ATTORNEYS' FEES. In addition to all other amounts that
are now due or may hereafter become due to Lender under the Loan Documents or
this Third Amendment to Deferral and Waiver Agreement, the Company shall
reimburse Lender for all amounts reasonably incurred by or on behalf of Lender
for attorneys' fees, recording expenses, title insurance fees, UCC searches, and
all other reasonable expenses incurred by or on behalf of Lender by reason of
the matters specified herein and for the preparation of this Third Amendment to
Deferral and Waiver Agreement and all other documents necessary and required to
effectuate the provisions hereof including, without limitation, all reasonable
costs and expenses with respect to the Company's compliance with the terms and
conditions hereof and Lender's enforcement thereof. In the event any dispute
shall arise concerning the subject matter of this Third Amendment to Deferral
and Waiver Agreement, Lender shall be entitled to recover from the Company its
reasonable attorneys' fees and costs incurred in the enforcement of any of the
provisions set forth herein. The rights and remedies of Lender contained in this
paragraph shall be in addition to, and not in lieu of, the rights and remedies
contained in the Loan Documents and as provided by law.

      10.    GOVERNING LAW. This Third Amendment to Deferral and Waiver
Agreement shall be construed in accordance with the laws of the State of
Colorado, without regard to its conflict of laws principles.

      11.    CONSTRUCTION. This Third Amendment to Deferral and Waiver Agreement
shall not be construed more strictly against Lender merely by virtue of the fact
that the same has been prepared by Lender or its counsel, it being recognized
that the Company and Lender have contributed substantially and materially to the
preparation of this Third Amendment to Deferral and Waiver Agreement, and the
Company and Lender each acknowledge and waive any claim contesting the existence
and the adequacy of the consideration given by any of the other parties hereto
in entering into this Third Amendment to Deferral and Waiver Agreement.

                                       4

<PAGE>

      12.    ENTIRE AGREEMENT. Company and Lender each acknowledge that there
are no other agreements or representations, either oral or written, express or
implied, not embodied in this Third Amendment to Deferral and Waiver Agreement
and the Loan Documents, which, together, represent a complete integration of all
prior and contemporaneous agreements and understandings of the Company and
Lender, and the provisions of the Loan Documents are hereby ratified and
confirmed.

      13.    BENEFIT. Except as provided herein, this Third Amendment to
Deferral and Waiver Agreement shall be binding upon and shall inure to the
benefit of the Company and Lender, and their respective successors and assigns.

      14.    RATIFICATION. The Loan Documents shall remain in full force and
effect, and all of the terms and provisions of the Loan Documents, as herein
modified, are hereby ratified and reaffirmed.

      15.    CONSENT TO AGREEMENT. Company acknowledges that it has thoroughly
read and reviewed the terms and provisions of this Third Amendment to Deferral
and Waiver Agreement and is familiar with the same, that the terms and
provisions contained herein are clearly understood by it and have been fully and
unconditionally consented to by it and that the Company has had the full benefit
and advice of counsel of its own selection, or the opportunity to obtain the
benefit and advice of counsel of its own selection, in regard to understanding
the terms, meaning and effect of this Third Amendment to Deferral and Waiver
Agreement and that this Third Amendment to Deferral and Waiver Agreement has
been entered into by the Company freely, voluntarily, with full knowledge, and
without duress, and that in executing this Third Amendment to Deferral and
Waiver Agreement, the Company is relying on no other representations, either
written or oral, express or implied, made to the Company by any other party
hereto, and that the consideration received by the Company hereunder has been
actual and adequate.

      16.    RELEASE. As additional consideration for Lender entering into this
Third Amendment to Deferral and Waiver Agreement, the Company hereby fully and
unconditionally releases and forever discharges Lender, its agents, servants,
employees, directors, officers, attorneys, branches, affiliates, subsidiaries,
successors and assigns and all persons, firms, corporations, and organizations
acting in its behalf of and from all damage, loss, claims, demands, liabilities,
obligations, actions and causes of action whatsoever which the Company may now
have or claim to have against Lender as of the date of this Third Amendment to
Deferral and Waiver Agreement, whether presently known or unknown, and of every
nature and extent whatsoever on account of or in any way affecting, concerning,
arising out of or founded upon the Loan Documents including, but not limited to,
all such loss or damage of any kind heretofore sustained, or that may arise as a
consequence of the dealings between the parties up to and including the date of
this Third Amendment to Deferral and Waiver Agreement.

      17.    COUNTERPARTS. It is understood and agreed that this Third Amendment
to Deferral and Waiver Agreement may be executed in several counterparts, each
of which shall, for all purposes, be deemed an original and all of such
counterparts, taken together, shall constitute one and the same

                                       5

<PAGE>

Third Amendment to Deferral and Waiver Agreement, even though all of the parties
hereto may not have executed the same counterpart of this Third Amendment to
Deferral and Waiver Agreement.

      18.    LENDER NOT LIABLE FOR EXPENSES. Nothing in this Third Amendment to
Deferral and Waiver Agreement shall be intended or construed to hold Lender
liable or responsible for any expenses, disbursement, liability or obligation of
any kind or nature whatsoever including, but not limited to, wages, salaries,
payroll taxes, deposits, withholding, benefits or other amounts payable to or on
behalf of the Company.

      19.    COMPANY REMAINS IN CONTROL. Company and Lender agree that the
Company remains in control of the Company, that it determines the business plan
for, and employment, management and operating directions and decisions for
Company.

      20.    MISCELLANEOUS. This Third Amendment to Deferral and Waiver
Agreement is made for the sole protection of Lender and the Company and their
respective successors and assigns. No other person shall have any right
whatsoever hereunder. Notices to parties hereunder may be given to them at the
addresses and in the manner provided in the Loan Documents. Time shall be of the
strictest essence in the performance of each and every one of the Company's
obligations hereunder. If any provision of this Third Amendment to Deferral and
Waiver Agreement is held to be invalid or unenforceable, the remaining
provisions shall remain in effect without impairment.

      IN WITNESS WHEREOF, this Third Amendment to Deferral and Waiver Agreement
has been executed by the parties hereto in manner and form sufficient to bind
them, as of the day and year first above written.

                                    KEYBANK NATIONAL ASSOCIATION
                                    a national banking association

                                    By:
                                    Name: /s/ H. DANIEL WILLETTS
                                         -------------------------------------
                                    Its:      Vice President

                                    DYNAMIC MATERIALS CORPORATION,
                                    a Delaware corporation

                                    By:
                                    Name: /s/ RICHARD A. SANTA
                                         -------------------------------------
                                    Its:      VP-Finance & CFO

                                       6

<PAGE>

STATE OF COLORADO       )
                        ) ss.
COUNTY OF DENVER        )

      The foregoing was acknowledged before me this 2nd day of May, 2000,
by H. DANIEL WILLETTS, as VP of KEYBANK NATIONAL ASSOCIATION, a national
banking association.

      WITNESS my hand and official seal.

      My commission expires:        1/22/2002
                            ------------------------

                                /s/ M.J. NUMET

                                    Notary Public

STATE OF COLORADO       )
                        ) ss.
COUNTY OF BOULDER       )

      The foregoing was acknowledged before me this 02 day of May, 2000,
by RICHARD A. SANTA, as VP Finance & CFO of DYNAMIC MATERIALS
CORPORATION, a Delaware corporation.

      WITNESS my hand and official seal.

      My commission expires:        10/22/2001
                              ------------------------

                                /s/ Luetha A. Sweeney

                                    Notary PublicEXHIBIT  10.1

                                 FIRST AMENDMENT

                           Dated as of March 21, 2000

       This FIRST AMENDMENT among MARVEL ENTERPRISES, INC. (the "Borrower"), the
GUARANTORS party hereto, the LENDERS party hereto and CITIBANK,  N.A., as Agent,
Collateral Agent and Issuer.

                             PRELIMINARY STATEMENTS:

       (1) The Borrower, the Guarantors,  the Lenders, the Agent, the Collateral
Agent and Issuer have entered into a Credit  Agreement dated as of April 1, 1999
(the "Credit Agreement").  Unless otherwise defined herein, the terms defined in
the Credit Agreement are used herein as therein defined.

       (2) The parties have agreed to amend the Credit  Agreement as hereinafter
set forth.

       NOW,  THEREFORE,  IN  CONSIDERATION  OF THE PREMISES,  THE PARTIES HERETO
AGREE AS FOLLOWS

         SECTION  1.  Amendment  to Credit  Agreement.  Article 5 of the  Credit
Agreement is, effective as of the date hereof and subject to the satisfaction of
the  conditions  precedent set forth in Section 2, hereby  amended by adding the
following proviso prior to the colon at the end of the preamble to such Article:

               ";  provided  that the  financial  covenants  contained  in
               Sections 5.13,  5.14 and 5.15 will not be tested so long as
               (i)  the  Total   Outstanding   Amounts   does  not  exceed
               $20,000,000  and (ii) the  Borrowing  Base  less the  Total
               Outstanding Amount exceeds $20,000,000".

         SECTION 2.  Conditions  of  Effectiveness.  This First  Amendment  will
become  effective when the Agent shall have received  counterparts of this First
Amendment executed by the Borrower, the Guarantors and the Required Lenders.

         SECTION 3. Representations and Warranties of the Borrower. The Borrower
and each Guarantor represents and warrants as follows:

       (a)  After   giving   effect  to  this  First   Amendment,   all  of  the
representations  and warranties  contained in Article 4 of the credit  agreement
and in other Loan Documents will be true in all material respects.

<PAGE>

       (b) After giving effect to this First  Amendment,  no Default or Event of
Default shall have occurred and be continuing.

         SECTION 4. Reference to and Effect on the Loan Documents.  (a) Upon the
effectiveness  of this  First  Amendment,  on and  after  the date  hereof  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 other Loan Documents to "the Credit Agreement",  "thereunder",  thereof", or
words of like  import  referring  to the  Credit  Agreement,  will mean and be a
reference to the Credit Agreement as amended hereby.

         (b) Except as specifically  amended above, the Credit Agreement and all
other Loan  Documents  are and will  continue to be in full force and effect and
are  hereby  in all  respects  ratified  and  confirmed.  Without  limiting  the
generally  of the  foregoing,  the  Loan  Documents  and  all of the  Collateral
described  therein do and will continue to secure the payment of all obligations
of the Borrower and the Guarantors under the Credit Agreement, the Notes and the
other Loan Documents, in each case as amended hereby.

         (c) The execution,  delivery and  effectiveness of this First Amendment
will not, except as expressly provided herein, operate as a waiver of any right,
power or remedy of any Lender or the Agent under any of the Loan Documents,  nor
constitute a waiver of any provision of any of the Loan Documents.

         SECTION 5.  Execution  in  Counterparts.  This First  Amendment  may be
executed  in any  number of  counterparts,  each of which when so  executed  and
delivered will be deemed to be an original and all of which taken together shall
constitute but one and the same agreement.

       SECTION 6. Governing  Law. This First  Amendment will be governed by, and
construed in accordance with, the laws of the State of New York.

         IN WITNESS WHEREOF, the parties hereto have caused this First Amendment
to be  executed  by their  respective  authorized  officers as of the date first
above written.

                                       2
<PAGE>

                  MARVEL ENTERPRISES, Inc.
                           as Borrower

                  By:s/Alllen S. Lipson
                     -------------------------
                     Name: Allen S. Lipson
                     Title:   Executive Vice President

                  MARVEL ENTERTAINMENT GROUP, INC.
                           as Guarantor

                  By: S/Allen S. Lipson
                      -----------------------
                      Name: Allen S. Lipson
                      Title: Vice President

                  MEI HOLDING COMPANY S CORP.,
                           as Guarantor

                  By: s/Allen S. Lipson
                      -----------------------
                      Name: Allen S. Lipson
                      Title: Vice President

                  MEI HOLDING COMPANY F CORP.,
                           as Guarantor

                  By: s/Allen S. Lipson
                      -----------------------
                      Name: Allen S. Lipson
                      Title: Vice President

                  MARVEL CHARACTERS, INC.,
                           as Guarantor

                  By: s/Allen S. Lipson
                      -----------------------
                      Name: Allen S. Lipson
                      Title: Vice President

                  MARVEL RESTURANT VENTURE CORP.,
                           as Guarantor

                  By: s/Allen S. Lipson
                      -----------------------
                      Name: Allen S. Lipson
                      Title: Vice President

                                       3
<PAGE>

                  MRV, INC., as Guarantor

                  By: s/Allen S. Lipson
                      -----------------------
                      Name: Allen S. Lipson
                      Title: Vice President

                  CITBANK, N.A. as Agent and Collateral Agent

                  By: s/Miles D. McManus
                      ---------------------
                      Name: Miles D. McManus
                      Title: Vice President

                  CITBANK, N.A. as Issuer

                  By: s/Miles D. McManus
                      ---------------------
                      Name: Miles D. McManus
                      Title: Vice President

                  CITBANK, N.A. as Lender

                  By: s/Miles D. McManus
                      ---------------------
                      Name: Miles D. McManus
                      Title: Vice President

                  HELLER FINANCIAL, INC., as Lender

                  By: s/Tara Urobel
                      -----------------------
                      Name:    Tara Urobel
                      Title: Vice President

                  AMSOUTH BANK, as Lender

                  By: s/Patrick R. Brocker
                      -----------------------
                      Name: Patrick R. Brocker
                      Title: Attorney-In-Fact

                                       5

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