Document:

<PAGE>

Exhibit 4.3 - Omnibus Amendment to Series Supplements

                                                                [EXECUTION COPY]

================================================================================

              _____________________________________________________

                              OMNIBUS AMENDMENT TO
                               SERIES SUPPLEMENTS

                          Dated as of December 31, 2001

             _____________________________________________________

                         DC FUNDING INTERNATIONAL, INC.
                                   Transferor

                       FIRST NORTH AMERICAN NATIONAL BANK
                          Prior Transferor and Servicer

                                       and

                            FIRST UNION NATIONAL BANK
                                     Trustee

                       on behalf of the Certificateholders

              _____________________________________________________

                         FNANB CREDIT CARD MASTER TRUST

              _____________________________________________________

================================================================================

<PAGE>

                                TABLE OF CONTENTS
                                -----------------

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                         <C>
Section 1.    Omnibus Amendments to the Series Supplements .................. 2

Section 2.    Amendments to the Series 1997-2 Supplement .................... 2

Section 3.    Amendments to the Series 1998-1 Supplement .................... 3

Section 4.    Amendments to the Series 2001-A Supplement .................... 4

Section 5.    Amendments to the Series 2001-B Supplement .................... 5

Section 6.    Amendments to the Series 2001-C Supplement .................... 6

Section 7.    Counterparts .................................................. 7

Section 8.    Governing Law ................................................. 8
</TABLE>

                                       i

<PAGE>

               OMNIBUS AMENDMENT TO SERIES SUPPLEMENTS, dated as of December 31,
2001 (this "Amendment"), among DC FUNDING INTERNATIONAL, INC., a Delaware
            ---------
corporation ("DC Funding"), as Transferor (in such capacity, the "Transferor"),
              ----------                                          ----------
FIRST NORTH AMERICAN NATIONAL BANK, a national banking association (the "Bank"),
                                                                         ----
as Transferor under the Prior Agreement (as defined below) (in such capacity,
the "Prior Transferor") and as Servicer (in such capacity, the "Servicer"), and
     ----------------                                           --------
FIRST UNION NATIONAL BANK (together with its successors in trust thereunder as
provided in the Restated Agreement referred to below, the "Trustee"), as trustee
                                                           -------
under the Amended and Restated Master Pooling and Servicing Agreement, dated as
of December 31, 2001 (as amended, supplemented or otherwise modified and in
effect from time to time, the "Restated Agreement"), among the Transferor, the
                               -----------------
Prior Transferor, the Servicer and the Trustee, as supplemented by the Series
Supplements referred to below.

                              PRELIMINARY STATEMENT

               The Bank, as Transferor and Servicer, and the Trustee previously
entered into (i) a Master Pooling and Servicing Agreement dated as of October
30, 1997, as amended (the "Prior Agreement") for the purpose of creating the
                           ---------------
FNANB Credit Card Master Trust (the "Trust"), (ii) a Series 1997-2 Supplement
                                     -----
dated as of November 25, 1997 to the Prior Agreement (as amended, the "Series
                                                                       ------
1997-2 Supplement") for the purpose of authorizing the issuance, authentication
-----------------
and delivery by the Trust of the Series 1997-2 Certificates (as defined in the
Series 1997-2 Supplement), (iii) a Series 1998-1 Supplement dated as of November
13, 1998 to the Prior Agreement (as amended, the "Series 1998-1 Supplement") for
                                                  ------------------------
the purpose of authorizing the issuance, authentication and delivery by the
Trust of the Series 1998-1 Certificates (as defined in the Series 1998-1
Supplement), (iv) a Series 2001-A Supplement dated as of February 27, 2001 to
the Prior Agreement (the "Series 2001-A Supplement") for the purpose of
                          ------------------------
authorizing the issuance, authentication and delivery by the Trust of the Series
2001-A Certificates (as defined in the Series 2001-A Supplement), (v) a Series
2001-B Supplement dated as of June 1, 2001 to the Prior Agreement (the "Series
                                                                        ------
2001-B Supplement") for the purpose of authorizing the issuance, authentication
-----------------
and delivery by the Trust of the Series 2001-B Certificates (as defined in the
Series 2001-B Supplement) and (vi) a Series 2001-C Supplement dated as of
December 19, 2001 to the Prior Agreement (the "Series 2001-C Supplement" and,
                                               ------------------------
collectively with the Series 1997-2 Supplement, the Series 1998-1 Supplement,
the Series 2001-A Supplement and the 2001-B Supplement, the "Series
                                                             ------
Supplements") for the purpose of authorizing the issuance, authentication and
-----------
delivery by the Trust of the Series 2001-C Certificates (as defined in the
Series 2001-C Supplement). The Transferor, the Prior Transferor, the Servicer
and the Trustee are entering into the Restated Agreement simultaneously herewith
and desire to enter into this Amendment for the purpose of substituting DC
Funding for the Bank as Transferor under the Series Supplements and further
amending the Series Supplements as set forth herein.

               Section 13.1(b) of the Prior Agreement provides that the
Servicer, the Prior Transferor and the Trustee, without the consent of any of
the Certificateholders, may amend from time to time any Supplement, subject to
satisfaction of the conditions precedent set forth therein. All terms used in
this Amendment that are defined in the Restated Agreement or the applicable
Series Supplement have the meanings assigned to them therein, except to the
extent such terms are amended or modified in this Amendment.

<PAGE>

               In consideration of the mutual agreements contained herein, each
party agrees as follows for the benefit of the other parties and for the benefit
of the Certificateholders:

               Section 1. Omnibus Amendments to the Series Supplements.
                          --------------------------------------------

               (a)  Each Series Supplement is hereby amended by substituting DC
Funding for the Bank as Transferor under such Series Supplement.

               (b)  Except where the context requires otherwise or where
expressly amended herein, references to the "Transferor" in each Series
Supplement shall be deemed to be references to DC Funding in such capacity and
not to the Bank.

               (c)  Except where the context requires otherwise or where
expressly amended herein, references to the "Agreement" in each Series
Supplement shall be deemed to be references to the Restated Agreement.

               (d)  Each Series Supplement is hereby amended by deleting each
reference to "Supplemental Accounts" in such Series Supplement and substituting
"Additional Accounts" therefor.

               (e)  Each Series Supplement is hereby amended by deleting each
reference to "Supplemental Closing Date" in such Series Supplement and
substituting "Additional Account Closing Date" therefor.

               (f)  Each Series Supplement is hereby amended by deleting each
reference to "Supplemental Cut-Off Date" in such Series Supplement and
substituting "Additional Account Cut-Off Date" therefor.

               (g)  Section 2 of each Series Supplement is hereby amended by
adding the following defined term:

               ""Bank" shall mean First North American National Bank, a national
                 ----
banking association, and any successor thereto."

               Section 2. Amendments to the Series 1997-2 Supplement.
                          ------------------------------------------

               (a)  Section 10 of the Series 1997-2 Supplement is amended by
amending and restating clause (c) thereof in its entirety to read as follows:

                    "(c)  the Transferor or the Bank shall consent to the
               appointment of a trustee, conservator, receiver, liquidator,
               custodian or other similar official in any bankruptcy,
               insolvency, readjustment of debt, marshalling of assets and
               liabilities, receivership, conservatorship or similar proceedings
               of or relating to the Transferor or the Bank or of or relating to
               all or substantially all of its property; or a decree or order of
               a court or agency or supervisory authority having jurisdiction in
               the premises for the appointment of a trustee, conservator,
               receiver, liquidator, custodian or other similar official in any
               bankruptcy, insolvency, readjustment of debt, marshalling of
               assets and liabilities, receivership, conservatorship or similar

                                       2

<PAGE>

               proceedings, or for the winding-up or liquidation of its affairs,
               shall have been entered against the Transferor or the Bank and
               such decree or order shall have remained in force undischarged or
               unstayed for a period of 30 days; the Transferor or the Bank
               shall admit in writing its inability to pay its debts generally
               as they become due, file a petition to take advantage of any
               applicable bankruptcy, insolvency, receivership, conservatorship
               or reorganization statute, make an assignment for the benefit of
               its creditors or voluntarily suspend payment of its obligations;
               or an involuntary proceeding shall be commenced or an involuntary
               petition shall be filed with respect to the Transferor or the
               Bank in a court of competent jurisdiction seeking to take
               advantage of any applicable bankruptcy, insolvency, receivership,
               conservatorship or reorganization statute and such proceeding or
               petition shall continue undismissed for 60 days; or the Bank
               shall become unable for any reason to transfer Receivables to the
               Transferor in accordance with the provisions of the Receivables
               Purchase Agreement or the Transferor shall become unable for any
               reason to transfer Receivables to the Trust in accordance with
               the provisions of the Agreement;"

               (b)  Section 10 of the Series 1997-2 Supplement is further
amended by deleting "or" at the end of clause (g), adding "or" at the end of
clause (h) and adding the following clause (i):

                    "(i)  the Receivables Purchase Agreement shall be
               terminated;"

               (c)  The Series 1997-2 Supplement as amended by this Amendment is
hereby incorporated by reference and forms a part of this instrument with the
same force and effect as if set forth in full herein. In the event that any term
or provision contained herein, to the extent such term or provision relates to
the Series 1997-2 Supplement, shall conflict or be inconsistent with any term or
provision contained in the Series 1997-2 Supplement, the terms and provisions of
this Amendment shall govern. After the date hereof, any reference to the Series
1997-2 Supplement shall mean the Series 1997-2 Supplement as amended by this
Amendment. As amended by this Amendment, the Series 1997-2 Supplement is in all
respects ratified and confirmed, and the Series 1997-2 Supplement and this
Amendment, to the extent this Amendment relates to the Series 1997-2 Supplement,
shall be read, taken and construed as one and the same instrument.

               Section 3.  Amendments to the Series 1998-1 Supplement.
                           ------------------------------------------

               (a)  Section 10 of the Series 1998-1 Supplement is amended by
amending and restating clause (c) thereof in its entirety to read as follows:

                    "(c) the Transferor or the Bank shall consent to the
               appointment of a trustee, conservator, receiver, liquidator,
               custodian or other similar official in any bankruptcy,
               insolvency, readjustment of debt, marshalling of assets and
               liabilities, receivership, conservatorship or similar proceedings
               of or relating to the Transferor or the Bank or of or relating to
               all or substantially all of its property; or a decree or order of
               a court or agency or supervisory authority having jurisdiction in
               the premises for the appointment of a trustee, conservator,
               receiver, liquidator,

                                       3

<PAGE>

               custodian or other similar official in any bankruptcy,
               insolvency, readjustment of debt, marshalling of assets and
               liabilities, receivership, conservatorship or similar
               proceedings, or for the winding-up or liquidation of its affairs,
               shall have been entered against the Transferor or the Bank and
               such decree or order shall have remained in force undischarged or
               unstayed for a period of 30 days; the Transferor or the Bank
               shall admit in writing its inability to pay its debts generally
               as they become due, file a petition to take advantage of any
               applicable bankruptcy, insolvency, receivership, conservatorship
               or reorganization statute, make an assignment for the benefit of
               its creditors or voluntarily suspend payment of its obligations;
               or an involuntary proceeding shall be commenced or an involuntary
               petition shall be filed with respect to the Transferor or the
               Bank in a court of competent jurisdiction seeking to take
               advantage of any applicable bankruptcy, insolvency, receivership,
               conservatorship or reorganization statute and such proceeding or
               petition shall continue undismissed for 60 days; or the Bank
               shall become unable for any reason to transfer Receivables to the
               Transferor in accordance with the provisions of the Receivables
               Purchase Agreement or the Transferor shall become unable for any
               reason to transfer Receivables to the Trust in accordance with
               the provisions of the Agreement;"

               (b)  Section 10 of the Series 1998-1 Supplement is further
amended by deleting "or" at the end of clause (g), adding "or" at the end of
clause (h) and adding the following clause (i):

                    "(i) the Receivables Purchase Agreement shall be
               terminated;"

               (c)  The Series 1998-1 Supplement as amended by this Amendment is
hereby incorporated by reference and forms a part of this instrument with the
same force and effect as if set forth in full herein. In the event that any term
or provision contained herein, to the extent such term or provision relates to
the Series 1998-1 Supplement, shall conflict or be inconsistent with any term or
provision contained in the Series 1998-1 Supplement, the terms and provisions of
this Amendment shall govern. After the date hereof, any reference to the Series
1998-1 Supplement shall mean the Series 1998-1 Supplement as amended by this
Amendment. As amended by this Amendment, the Series 1998-1 Supplement is in all
respects ratified and confirmed, and the Series 1998-1 Supplement and this
Amendment, to the extent this Amendment relates to the Series 1998-1 Supplement,
shall be read, taken and construed as one and the same instrument.

               Section 4.  Amendments to the Series 2001-A Supplement.
                           ------------------------------------------

               (a)  Section 11 of the Series 2001-A Supplement is amended by
amending and restating clauses (c) and (j) thereof in their entirety to read as
follows:

                    "(c) the Transferor or the Bank shall consent to the
               appointment of a trustee, conservator, receiver, liquidator,
               custodian or other similar official in any bankruptcy,
               insolvency, readjustment of debt, marshaling of assets and
               liabilities, receivership, conservatorship or similar proceedings
               of or relating to the Transferor or the Bank or of or relating to
               all or substantially all of its property; or

                                       4

<PAGE>

               a decree or order of a court or agency or supervisory authority
               having jurisdiction in the premises for the appointment of a
               trustee, conservator, receiver, liquidator, custodian or other
               similar official in any bankruptcy, insolvency, readjustment of
               debt, marshaling of assets and liabilities, receivership,
               conservatorship or similar proceedings, or for the winding-up or
               liquidation of its affairs, shall have been entered against the
               Transferor or the Bank and such decree or order shall have
               remained in force undischarged or unstayed for a period of 30
               days; either the Transferor or the Bank shall admit in writing
               its inability to pay its debts generally as they become due, file
               a petition to take advantage of any applicable bankruptcy,
               insolvency, receivership, conservatorship or reorganization
               statute, make an assignment for the benefit of its creditors or
               voluntarily suspend payment of its obligations; an involuntary
               proceeding shall be commenced or an involuntary petition shall be
               filed with respect to the Transferor or the Bank in a court of
               competent jurisdiction seeking to take advantage of any
               applicable bankruptcy, insolvency, receivership, conservatorship
               or reorganization statute and such proceeding or petition shall
               continue undismissed for 60 days; or the Bank shall become unable
               for any reason to transfer Receivables to the Transferor in
               accordance with the provisions of the Receivables Purchase
               Agreement or the Transferor shall become unable for any reason to
               transfer Receivables to the Trust in accordance with the
               provisions of the Agreement;"

                    "(j) the Receivables Purchase Agreement shall be
               terminated;"

               (b)  The Series 2001-A Supplement as amended by this Amendment is
hereby incorporated by reference and forms a part of this instrument with the
same force and effect as if set forth in full herein. In the event that any term
or provision contained herein, to the extent such term or provision relates to
the Series 2001-A Supplement, shall conflict or be inconsistent with any term or
provision contained in the Series 2001-A Supplement, the terms and provisions of
this Amendment shall govern. After the date hereof, any reference to the Series
2001-A Supplement shall mean the Series 2001-A Supplement as amended by this
Amendment. As amended by this Amendment, the Series 2001-A Supplement is in all
respects ratified and confirmed, and the Series 2001-A Supplement and this
Amendment, to the extent this Amendment relates to the Series 2001-A Supplement,
shall be read, taken and construed as one and the same instrument.

               Section 5.  Amendments to the Series 2001-B Supplement.
                           ------------------------------------------

               (a)  Section 10 of the Series 2001-B Supplement is amended by
amending and restating clauses (c) and (l) thereof in their entirety to read as
follows:

                    "(c) the Transferor, the Bank or Circuit City shall consent
               to the appointment of a trustee, conservator, receiver,
               liquidator, custodian or other similar official in any
               bankruptcy, insolvency, readjustment of debt, marshaling of
               assets and liabilities, receivership, conservatorship or similar
               proceedings of or relating to the Transferor, the Bank or Circuit
               City or of or relating to all or substantially all of its
               property; or a decree or order of a court or agency or
               supervisory authority having jurisdiction in the premises for the
               appointment of a

                                       5

<PAGE>

               trustee, conservator, receiver, liquidator, custodian or other
               similar official in any bankruptcy, insolvency, readjustment of
               debt, marshaling of assets and liabilities, receivership,
               conservatorship or similar proceedings, or for the winding-up or
               liquidation of its affairs, shall have been entered against the
               Transferor, the Bank or Circuit City and such decree or order
               shall have remained in force undischarged or unstayed for a
               period of 30 days; any of the Transferor, the Bank or Circuit
               City shall admit in writing its inability to pay its debts
               generally as they become due, file a petition to take advantage
               of any applicable bankruptcy, insolvency, receivership,
               conservatorship or reorganization statute, make an assignment for
               the benefit of its creditors or voluntarily suspend payment of
               its obligations; an involuntary proceeding shall be commenced or
               an involuntary petition shall be filed with respect to the
               Transferor, the Bank or Circuit City in a court of competent
               jurisdiction seeking to take advantage of any applicable
               bankruptcy, insolvency, receivership, conservatorship or
               reorganization statute and such proceeding or petition shall
               continue undismissed for 60 days; or the Bank shall become unable
               for any reason to transfer Receivables to the Transferor in
               accordance with the provisions of the Receivables Purchase
               Agreement or the Transferor shall become unable for any reason to
               transfer Receivables to the Trust in accordance with the
               provisions of the Agreement;"

                    "(l) Circuit City shall fail to own, directly or indirectly,
               a majority of the capital stock of the Transferor and a majority
               of the capital stock of the Bank; or"

               (b)  Section 10 of the Series 2001-B Supplement is further
amended by deleting "or" at the end of clause (k) and adding the following
clause (m):

                    "(m) the Receivables Purchase Agreement shall be
               terminated;"

               (c)  The Series 2001-B Supplement as amended by this Amendment is
hereby incorporated by reference and forms a part of this instrument with the
same force and effect as if set forth in full herein. In the event that any term
or provision contained herein, to the extent such term or provision relates to
the Series 2001-B Supplement, shall conflict or be inconsistent with any term or
provision contained in the Series 2001-B Supplement, the terms and provisions of
this Amendment shall govern. After the date hereof, any reference to the Series
2001-B Supplement shall mean the Series 2001-B Supplement as amended by this
Amendment. As amended by this Amendment, the Series 2001-B Supplement is in all
respects ratified and confirmed, and the Series 2001-B Supplement and this
Amendment, to the extent this Amendment relates to the Series 2001-B Supplement,
shall be read, taken and construed as one and the same instrument.

               Section 6.  Amendments to the Series 2001-C Supplement.
                           ------------------------------------------

               (a)  Section 11 of the Series 2001-C Supplement is amended by
amending and restating clause (c) thereof in its entirety to read as follows:

                    "(c) the Transferor or the Bank shall consent to the
               appointment of a trustee, conservator, receiver, liquidator,
               custodian or other similar official in any

                                       6

<PAGE>

               bankruptcy, insolvency, readjustment of debt, marshaling of
               assets and liabilities, receivership, conservatorship or similar
               proceedings of or relating to the Transferor or the Bank or of or
               relating to all or substantially all of its property; or a decree
               or order of a court or agency or supervisory authority having
               jurisdiction in the premises for the appointment of a trustee,
               conservator, receiver, liquidator, custodian or other similar
               official in any bankruptcy, insolvency, readjustment of debt,
               marshaling of assets and liabilities, receivership,
               conservatorship or similar proceedings, or for the winding-up or
               liquidation of its affairs, shall have been entered against the
               Transferor or the Bank and such decree or order shall have
               remained in force undischarged or unstayed for a period of 30
               days; either the Transferor or the Bank shall admit in writing
               its inability to pay its debts generally as they become due, file
               a petition to take advantage of any applicable bankruptcy,
               insolvency, receivership, conservatorship or reorganization
               statute, make an assignment for the benefit of its creditors or
               voluntarily suspend payment of its obligations; an involuntary
               proceeding shall be commenced or an involuntary petition shall be
               filed with respect to the Transferor or the Bank in a court of
               competent jurisdiction seeking to take advantage of any
               applicable bankruptcy, insolvency, receivership, conservatorship
               or reorganization statute and such proceeding or petition shall
               continue undismissed for 60 days; or the Bank shall become unable
               for any reason to transfer Receivables to the Transferor in
               accordance with the provisions of the Receivables Purchase
               Agreement or the Transferor shall become unable for any reason to
               transfer Receivables to the Trust in accordance with the
               provisions of the Agreement;"

               (b)  Section 11 of the Series 2001-C Supplement is further
amended by deleting "or" at the end of clause (m), deleting the period and
adding "; or" at the end of clause (n) and adding the following clause (o):

                    "(o) the Receivables Purchase Agreement shall be
               terminated;"

               (c)  The Series 2001-C Supplement as amended by this Amendment is
hereby incorporated by reference and forms a part of this instrument with the
same force and effect as if set forth in full herein. In the event that any term
or provision contained herein, to the extent such term or provision relates to
the Series 2001-C Supplement, shall conflict or be inconsistent with any term or
provision contained in the Series 2001-C Supplement, the terms and provisions of
this Amendment shall govern. After the date hereof, any reference to the Series
2001-C Supplement shall mean the Series 2001-C Supplement as amended by this
Amendment. As amended by this Amendment, the Series 2001-C Supplement is in all
respects ratified and confirmed, and the Series 2001-C Supplement and this
Amendment, to the extent this Amendment relates to the Series 2001-C Supplement,
shall be read, taken and construed as one and the same instrument.

               Section 7.  Counterparts. This Amendment may be executed in two
                           ------------
or more counterparts (and by different parties on separate counterparts), each
of which shall be an original, but all of which together shall constitute one
and the same instrument.

                                       7

<PAGE>

               Section 8.  Governing Law. THIS AMENDMENT SHALL BE CONSTRUED IN
                           -------------
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REFERENCE TO ITS
CONFLICT OF LAW PROVISIONS (OTHER THAN SECTION 5-1401 OF THE GENERAL OBLIGATIONS
LAW), AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE
DETERMINED IN ACCORDANCE WITH SUCH LAWS.

                           [SIGNATURE PAGE FOLLOWS]

                                       8

<PAGE>

               IN WITNESS WHEREOF, the Transferor, the Prior Transferor, the
Servicer and the Trustee have caused this Amendment to be duly executed by their
respective officers as of the day and year first above written.

                              DC FUNDING INTERNATIONAL, INC.,
                                  as Transferor

                              By: /s/ Philip J. Dunn
                                  Name: Philip J. Dunn
                                  Title: Vice President

                              FIRST NORTH AMERICAN NATIONAL BANK,
                                  as Transferor under the Prior Agreement and as
                                  Servicer

                              By: /s/ Michael T. Chalifoux
                                  Name: Michael T. Chalifoux
                                  Title: President

                              FIRST UNION NATIONAL BANK,
                                  as Trustee

                              By: /s/ Bryon M. Tinnin
                                  Name: Bryon M. Tinnin
                                  Title: Assistant Vice President

                                       9<PAGE>

                                  EXHIBIT 10.6

   MYKROLIS CORPORATION AMENDED AND RESTATED 2001 EMPLOYEE STOCK PURCHASE PLAN

<PAGE>

                              MYKROLIS CORPORATION
             AMENDED AND RESTATED 2001 EMPLOYEE STOCK PURCHASE PLAN

     SECTION 1. PURPOSE OF PLAN. The Mykrolis Corporation 2001 Employee Stock
Purchase Plan (the "Prior Plan") was adopted on March 26, 2001 to provide
eligible employees of Mykrolis Corporation ("Mykrolis") and such subsidiary
corporation(s) of Mykrolis as the Board of Directors of Mykrolis may from time
to time designate (collectively referred to as the "Company") with an
opportunity, through payroll deductions, to acquire common stock of Mykrolis and
1,000,000 shares of the authorized but unissued Common Stock, $0.01 par value of
Mykrolis were reserved for issue thereunder. On October 11, 2001 (the "Effective
Date"), the Board of Directors of Mykrolis (the "Board") amended and restated
the Prior Plan in order to make various changes to the Prior Plan considered
beneficial for continuing to carry out the purposes of such plan, all in the
form set forth herein (the "Plan"); this amendment and restatement does not
increase the aggregate number of shares that may be issued under the Plan and
does not change the designation of corporations whose employees may be offered
options under the Plan. For purposes of the Plan, a parent corporation and a
subsidiary corporation shall be as defined in sections 424(e) and 424(f) of the
Internal Revenue Code of 1986,as amended (the "Code"). The Company intends that
the Plan shall qualify as an "employee stock purchase plan" under section 423 of
the Code (including any future amendments or replacements of such section), and
the Plan shall be so construed. Terms defined in the text of this Plan shall
have the meaning ascribed to them at the location of their definition; a listing
of defined terms is set forth in Section 19 below. Any term used herein which is
not expressly defined in the Plan but defined for purposes of section 423 of the
Code shall have the same meaning when used herein. Because an eligible employee
who participates in the Plan may withdraw his or her accumulated payroll
deductions and terminate participation in the Plan or any Offering (as defined
below) therein at any time during an Offering Period (as defined below), such
participating employee is, in effect, given an option which may or may not be
exercised during any Offering Period.

     SECTION 2. SHARE RESERVE. The maximum number of shares which may be issued
under the Plan shall be 1,000,000 shares of Mykrolis' authorized but unissued
Common Stock, $0.01 par value (the "Shares"). In the event that any option
granted under the Plan (an "Option") for any reason expires or is terminated,
the Shares allocable to the unexercised portion of such Option shall be returned
to the reserve of Shares available for Option grants under the Plan.

     SECTION 3. ADMINISTRATION. The Plan shall be administered by the Board
and/or by a duly appointed committee of the Board having such powers as shall be
specified by the Board. Any subsequent references to the Board shall also

<PAGE>

mean the committee if it has been appointed. All questions of interpretation of
the Plan or of any Options shall be determined by the Board and shall be final
and binding upon all persons having an interest in the Plan and/or any Option.
Subject to the provisions of the Plan, the Board shall determine all of the
relevant terms and conditions of Options granted pursuant to the Plan; provided,
however, that all Participants (as defined in Subsection 6(a) below) granted
Options pursuant to the Plan shall have the same rights and privileges within
the meaning of section 423(b)(5) of the Code. All expenses incurred in
connection with the administration of the Plan shall be paid by the Company.

     SECTION 4. ELIGIBILITY. Any regular employee of the Company is eligible to
participate in the Plan and any Offering (as hereinafter defined) under the Plan
except the following: (a) employees who are customarily employed by the Company
for less than twenty (20) hours a week and (b) employees who own or hold options
to purchase or who, as a result of participation in the Plan, would own or hold
options to purchase stock of the Company possessing five percent (5%) or more of
the total combined voting power or value of all classes of stock of the Company
within the meaning of section 423(b)(3) of the Code.

     SECTION 5.  OFFERINGS

     (a) Offering Periods. Except as otherwise set forth below, commencing on
the Effective Date, the Plan shall be implemented by offerings (individually, an
"Offering") of twenty-four (24) months duration (an "Offering Period"). An
Offering shall commence on April 1 and October 1 of each year and end on the
second March 31 and September 30, respectively, occurring thereafter.
Notwithstanding the foregoing, the Board may establish an initial transitional
Offering as well as a different term for one or more of the Offerings and/or
different commencing and/or ending dates for such Offerings. No employee who
becomes eligible to participate in the Plan after an Offering has commenced may
participate in that Offering, but such employee may participate in any
subsequent Offering provided such employee is still eligible to participate in
the Plan as of the commencement of any such subsequent Offering. Eligible
employees may not participate in more than one Offering at a time. The first day
of an Offering Period shall be the "Offering Date" for such Offering Period. In
the event the first and/or last day of an Offering Period is not a business day,
the next succeeding business day for Mykrolis shall be deemed the first or last
day, as the case may be, of the Offering Period.

     (b) Purchase Periods. Each Offering Period shall consist of four (4)
consecutive purchase periods of six (6) months duration (a "Purchase Period").
The last day of each Purchase Period shall be the "Purchase Date" for such
Purchase Period. A Purchase Period commencing on April 1 shall end on the next
succeeding September 30. A Purchase Period commencing on October 1 shall end on
the next succeeding March 31. Notwithstanding the foregoing, the Board may
establish a different term for one or more Purchase Periods and/or different
commencing dates and/or

<PAGE>

Purchase Dates for such Purchase Periods. In the event that the first and/or
last day of a Purchase Period is not a business day, the next succeeding
business day for Mykrolis shall be deemed the first or last day, as the case may
be, of the Purchase Period.

     (c) Governmental Approval; Shareholder Approval. Notwithstanding any other
provision of the Plan to the contrary, any Option granted pursuant to the Plan
shall be subject to: (i) obtaining all necessary governmental approvals and/or
qualifications of the sale and/or issuance of the Options and/or the Shares, and
(ii) in the case of Options with an Offering Date after an amendment to the
Plan, obtaining any necessary approval of the shareholders of the Company
required in Section 17 below.

     SECTION 6. PARTICIPATION IN THE PLAN

     (a) Initial Participation. An eligible employee may elect to participate in
the Plan effective as of the first Offering Date after satisfying the
eligibility requirements set forth in Section 4 above by delivering a
subscription agreement authorizing payroll deductions (a "Subscription
Agreement") to the Company's Stock Administration office not later than fifteen
(15) calendar days, or such other period as the Company may determine in its
sole discretion, prior to such Offering Date; such Employee will thereby become
a participant in the Plan ("Participant") on the first day of such Offering
Period and will remain a Participant until his or her participation is
terminated as provided in the Plan. The Subscription Agreement shall state the
eligible employee's election to participate in the Plan and the rate at which
payroll deductions shall be accumulated. An eligible employee who does not
deliver a Subscription Agreement to the Company's Stock Administration office at
least fifteen (15) calendar days, or such period as the Company may determine in
its sole discretion, prior to the first Offering Date after becoming eligible to
participate in the Plan, shall not participate in the Plan for that Offering
Period or for any subsequent Offering Period unless such employee subsequently
enrolls in the Plan by filing a Subscription Agreement with the Company in
accordance with this Subsection 6(a).

     (b) Automatic Participation in Subsequent Offerings. A Participant shall
automatically participate in each subsequent Offering Period until such time as
such Participant ceases to be eligible as provided in Section 4, the Participant
withdraws from the Plan pursuant to Section 10 below, or the Participant
terminates employment as provided in Section 11 below. A Participant is not
required to file an additional Subscription Agreement for such Offering Periods
in order to automatically participate therein. Unless otherwise indicated in a
subsequently filed Subscription Agreement, the rate at which payroll deductions
shall be accumulated with respect to any such subsequent Offering Period shall
equal the rate applicable to the immediately preceding Offering Period.

<PAGE>

     SECTION 7. PURCHASE PRICE

     (a) Purchase Price. The purchase price at which Shares may be acquired in
any Offering Period under the Plan shall be eighty-five percent (85%) of the
lesser of (i) the fair market value of the Shares on the Offering Date of such
Offering Period or (ii) the fair market value of the Shares on the Purchase Date
applicable to the Shares being purchased during such Offering Period. For
purposes of the Plan, the fair market value of the Shares at any point in time
shall be determined in accordance with Subsection 7(b) below.

     (b) Fair Market Value of the Shares. The fair market value of the Shares
shall be the last sale price, regular way, with respect to the Shares, or, in
case no such sale takes place on such day, the average of the closing bid and
asked prices, regular way, with respect to the Shares, in either case as
reported in the principal consolidated transaction reporting system with respect
to securities listed or admitted to trading on the New York Stock Exchange; or,
if the Shares are not listed or admitted to trading on the New York Stock
Exchange, as reported in the principal consolidated transaction reporting system
with respect to securities listed on the principal national securities exchange
on which the Shares are listed or admitted to trading; or, if the Shares are not
listed or admitted to trading, the last quoted price with respect to the Shares,
or, if not so quoted, the average of the high bid and low asked prices in the
over-the-counter market with respect to the Shares, as reported by the National
Association of Securities Dealers, Inc. Automated Quotation System or such other
similar system then in use; or, if on any such date the Shares are not quoted by
any such organization, the average of the closing bid and asked prices with
respect to the Shares, as furnished by a professional market maker making a
market in the Shares selected by the Board in good faith; or, if no such market
maker is available, the fair market value of the Shares as of such day as
determined in good faith by the Board.

     (c) Automatic Transfer to Low Price Offering Period. To the extent
permitted by the Code, any applicable laws, regulations, or stock exchange
rules, if the fair market value of the Shares on any Purchase Date in an
Offering Period is lower than the fair market value of the Shares on the Offer
Date of such Offering Period, then all Participants in such Offering Period
shall be automatically withdrawn from such Offering Period immediately after the
exercise of their Option on such Purchase Date and automatically re-enrolled in
the immediately following Offering Period as of the first day thereof.

     SECTION 8. PAYMENT OF PURCHASE PRICE; PAYROLL DEDUCTIONS

     (a) Accumulation of Payroll Deductions. The purchase price of Shares to be
acquired during an Offering Period shall be accumulated only by payroll
deductions over the Offering Period. Payroll deductions from a Participant's
compensation on each payday during the Offering Period (i) shall not exceed ten
percent (10%) of such Participant's base pay per month reduced

<PAGE>

by any payroll deductions from such Participant's compensation to purchase stock
under any other plan of the Company intended to qualify as an "employee stock
purchase plan" under section 423 of the Code, and (ii) shall not be less than
one percent (1%) of the Participant's base pay per month. For purposes hereof, a
Participant's "base pay" from the Company is an aggregate that (X) shall include
all salaries and commissions, and (Y) shall not include annual awards or
incentive bonuses and any other payments not specifically referenced in (X)
above, except to the extent that the inclusion of any such item with respect to
all Participants on a non-discriminatory basis is specifically approved by the
Board. Payroll deductions shall commence on the first payday following the first
day of a Offering Period or as soon as administratively feasible thereafter and
shall continue to the end of such Offering Period unless sooner altered or
terminated as provided in the Plan.

     (b) Election to Change Payroll Deduction Rate. A Participant may decrease
(but not increase) the rate of payroll deductions with respect to an Offering
Period only on or before and effective as of the date three (3) months after the
beginning of such Offering Period by filing an amended Subscription Agreement
with the Company. A Participant may increase or decrease the rate of payroll
deductions for any subsequent Offering Period by filing a new Subscription
Agreement with the Company not later than fifteen (15) calendar days, or such
other period as the Company may determine in its sole discretion, prior to the
beginning of such subsequent Offering Period.

     (c) Participant Plan Accounts. Individual accounts shall be maintained
under the Plan for each Participant (a "Plan Account"). All payroll deductions
from a Participant's compensation shall be credited to the Participant's Plan
Account and shall be deposited with the general funds of the Company. No
interest shall accrue on such payroll deductions. All payroll deductions
received or held by the Company may be used by the Company for any corporate
purpose.

     SECTION 9. PURCHASE OF SHARES

     (a) Purchase. On each Purchase Date of an Offering Period, each remaining
Participant shall automatically purchase, subject to the limitations set forth
in Subsections 9(b) and 9(c) below, that number of whole Shares arrived at by
dividing the total amount theretofore credited to the Participant's Plan Account
pursuant to Subsection 8(c) by the purchase price established for such Offering
Period pursuant to Section 7. As soon as practicable thereafter the Company will
credit said Shares to the Participant's Plan Account or otherwise evidence the
transfer of ownership of said Shares. Upon written request of a Participant, the
Company shall issue certificates representing the number of whole Shares
credited to the Participant's Plan Account and such number of certificated
Shares shall be charged to the Participant's Plan Account. Any cash balance
remaining in the Participant's Plan Account after the limitations specified in
Subsection 9(b) or 9(c) below

<PAGE>

shall be refunded to the Participant as soon as practicable after the Purchase
Date. No Shares shall be purchased in a given Offering Period on behalf of a
Participant whose participation in the Plan has terminated prior to the
applicable Purchase Date during such Offering Period.

     (b) Share Limitation. Subject to the adjustments set forth in Section 13
below, no Participant shall be entitled to purchase more than 4,000 Shares in a
single Offering.

     (c) Fair Market Value Limitation. Notwithstanding any other provision of
the Plan, no Participant shall be entitled to purchase Shares under the Plan (or
any other employee stock purchase plan which is intended to meet the
requirements of section 423 of the Code sponsored by Mykrolis or a parent
corporation or subsidiary corporation of Mykrolis) at a rate which exceeds
$25,000 in fair market value (or such other limit as may be imposed by section
423 of the Code) for each calendar year in which the Participant participates in
the Plan or any other employee stock purchase plan described in this sentence,
as determined in accordance with section 423(b)(8) of the Code.

     (d) Pro Rata Allocation. In the event the number of Shares which might be
purchased by all Participants in the Plan exceeds the number of Shares available
in the Plan, the Company shall make a pro rata allocation of the remaining
Shares in as uniform a manner as shall be practicable and as the Company shall
determine to be equitable.

     (e) Rights as a Shareholder and Employee. A Participant shall have no
rights as a shareholder by virtue of the Participant's participation in the Plan
until the date of issuance of a stock certificate(s) for the Shares being
purchased pursuant to the exercise of the Participant's Option. No adjustment
shall be made for dividends or distributions or other rights for which the
record date is prior to the date such stock certificate(s) are issued. Nothing
herein shall confer upon a Participant any right to continue in the employ of
the Company or interfere in any way with any right of the Company to terminate
he Participant's employment at any time.

     (f) Administrative Procedures, etc. The Company may, from time to time,
establish or change (i) limitations on the frequency and/or number of changes in
the amount withheld during an Offering, (ii) an exchange ratio applicable to
amounts withheld in a currency other than U.S. dollars, (iii) procedures for
permitting unequal percentages of payroll withholding from a Participant's
compensation in order to accommodate the Company's established payroll
procedures or mistakes or delays in following those procedures when processing
Participants' withholding elections, and (iv) such other limitations or
procedures as may be deemed advisable by the Company in the Company's sole
discretion which are consistent with the Plan and section 423 of the Code.

     (g) Expiration of Options. Any portion of a Participant's Option remaining
unexercised after the end of the Offering Period to which such right relates

<PAGE>

shall expire and shall be of no further force or effect immediately upon the end
of such Offering Period.

     SECTION 10. WITHDRAWAL

     (a) Withdrawal From the Plan. A Participant may withdraw from the Plan by
signing and delivering to the Company's payroll office, a written notice of
withdrawal on a form provided by the Company for such purpose. Such withdrawal
may be elected at any time, and if prior to the end of an Offering Period shall
be effective for that Offering Period. A Participant is prohibited from again
participating in an Offering upon withdrawal from the Plan during such Offering.
A Participant who elects to withdraw from the Plan may again participate in the
Plan by filing a new Subscription Agreement in the same manner as set forth in
Subsection 6 (a) above for initial participation in the Plan. The Company may
impose, from time to time, a requirement that the notice of withdrawal be on
file with the Company for a reasonable period of time prior to the effectiveness
of the Participant's withdrawal from the Plan.

     (b) Return of Payroll Deductions. Upon withdrawal from the Plan, the
accumulated payroll deductions credited to a withdrawing Participant's account
shall be returned to the Participant and the Participant's interest in the Plan
shall terminate. No interest shall accrue on the payroll deductions of a
Participant.

     SECTION 11. TERMINATION OF EMPLOYMENT. Termination of a Participant's
employment with the Company for any reason, including retirement or death, or
the failure of a Participant to remain an eligible employee, shall terminate the
Participant's participation in the Plan immediately. Upon such termination, the
payroll deductions credited to the Participant's account shall be returned to
the Participant (or in the case of the Participant's death, to the Participant's
legal representative) and all of the Participant's rights under the Plan shall
terminate. A Participant whose participation has been so terminated may again
become eligible to participate in the Plan by again satisfying the requirements
of Sections 4 and 6.

     SECTION 12. REPAYMENT OF PAYROLL DEDUCTIONS WITHOUT INTEREST. In the event
a Participant's interest in the Plan is terminated, the Company shall deliver to
the Participant (or in the case of the Participant's death or incapacity, to the
Participant's legal representative) the payroll deductions credited to the
Participant's account. No interest shall accrue on the payroll deductions of a
Participant.

     SECTION 13. CAPITAL CHANGES. In the event of changes in the common stock of
the Company due to a stock split, reverse stock split, stock dividend,
combination, reclassification or like change in the Company's capitalization, or
in the event of any merger, sale or reorganization, appropriate adjustments
shall be made by the Company in (i) the number and class of Shares of stock
subject to

<PAGE>

the Plan and to any outstanding Option, (ii) the purchase price per Share of any
outstanding Option and (iii) the Share limitation set forth in Subsection 9(b)
above.

     SECTION 14. NONASSIGNABILITY. Only the Participant may elect to exercise
the Participant's Option during the Participant's lifetime, and no rights or
accumulated payroll deductions of any Participant under the Plan may be pledged,
assigned or transferred for any reason, except by will or the laws of descent
and distribution, and any such attempt may be treated by the Company as an
election by the Participant to withdraw from the Plan.

     SECTION 15. REPORTS. Each Participant shall receive after the last day of
each Offering Period a report of the Participant's account setting forth the
total payroll deductions accumulated, the number of Shares purchased and the
remaining cash balance to be carried over and/or refunded pursuant to Subsection
9 (a) above, if any.

     SECTION 16. PLAN TERM. This Plan shall continue until terminated by the
Board or until all of the Shares reserved for issuance under the Plan have been
issued.

     SECTION 17. AMENDMENT OR TERMINATION OF THE PLAN. Mykrolis reserves the
right at any time or times to amend the Plan to any extent and in any manner it
may deem advisable, by vote of the Board; provided, that any amendment that
would be treated as the adoption of a new plan for purposes of Section 423 of
the Code and the regulations thereunder will have no force or effect unless
approved by the shareholders of Mykrolis within twelve (12) months before or
after its adoption. The Board may at any time suspend or terminate the Plan. In
connection therewith, the Board may either cancel outstanding Options or
continue them and provide that they will be exercisable either at the end of the
applicable Purchase Period as determined under Section 4 above or on such
earlier date as the Board may specify (in which case such earlier date shall be
treated as the last day of the applicable Purchase Period).

     SECTION 18. CLAWBACK. The Board may, in its discretion and, to the extent
necessary or desirable, modify or amend the Plan to reduce or eliminate an
unfavorable accounting consequence including, but not limited to: (i) altering
the Purchase Price for an Offering Period including an Offering Period underway
at the time of the change in Purchase Price; (ii) shortening any Offering Period
so that Offering Period ends on a new Exercise Date, including an Offering
Period underway at the time of the Board action; and (iii) allocating shares.
Such modifications or amendments shall not require stockholder approval or the
consent of any Plan participants.

<PAGE>

     SECTION 19. LIST OF DEFINED TERMS AND LOCATION OF DEFINITION. The following
terms shall have the meaning ascribed to them at the indicated location of
definition:

     Defined Term                          Location of Definition
     ------------                          ----------------------
       Base Pay                                Subsection 8 (a)
       Board                                   Section 1
       Code                                    Section 1
       Company                                 Section 1
       Effective Date                          Section 1
       Mykrolis                                Section 1
       Offering                                Subsection 5(a)
       Offering Date                           Subsection 5(a)
       Offering Period                         Subsection 5(a)
       Option                                  Section 2
       Participant                             Subsection 6(a)
       Plan                                    Section 1
       Plan Account                            Subsection 8(c)
       Prior Plan                              Section 1
       Purchase Date                           Subsection 5(b)
       Purchase Period                         Subsection 5(b)
       Shares                                  Section2
       Subscription Agreement                  Subsection 6(a)

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