Document:

<PAGE>

                                                                 EXHIBIT 10.4(b)

                       SECOND AMENDMENT TO LOAN AGREEMENT
                       ----------------------------------

         This Second Amendment to Loan Agreement, dated this 25th day of April,
2002, by and among Michael Baker Corporation, a Pennsylvania corporation
("MBC"), Michael Baker, Jr., Inc., a Pennsylvania corporation ("Michael Baker
Jr."), Baker/MO Services, Inc., a Texas corporation ("Baker/MO"), Baker/OTS,
Inc., a Delaware corporation ("Baker/OTS"), Baker Engineering NY, Inc., a New
York corporation ("Baker NY") (each a "Borrower" and collectively, the
"Borrowers"), Citizens Bank of Pennsylvania (assignee of Mellon Bank, N.A.), a
Pennsylvania banking institution ("Citizens"), National City Bank of
Pennsylvania, a national banking association ("NCB"), and Fifth Third Bank, a
national banking association ("Fifth Third") (each a "Bank" and collectively,
the "Banks"), and Citizens Bank of Pennsylvania, as agent for the Banks (in such
capacity, the "Agent") ("Second Amendment").

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

         WHEREAS, the Borrowers, the Banks and the Agent entered into that
certain Loan Agreement, dated September 5, 2001, as amended by that certain
First Amendment to Loan Agreement, dated February 20, 2002 (the "Loan
Agreement"), pursuant to which, among other things, the Banks agreed to extend
credit to the Borrowers pursuant to a revolving credit facility in an aggregate
principal amount not to exceed Forty Million and 00/100 Dollars
($40,000,000.00); and

         WHEREAS, the Borrowers desire to amend certain provisions of the Loan
Agreement and the Banks and the Agent shall permit such amendments pursuant to
the terms and conditions set forth herein.

         NOW, THEREFORE, in consideration of the premises contained herein and
other valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, and intending to be legally bound hereby, the parties hereto agree
as follows:

         1. All capitalized terms used herein which are defined in the Loan
Agreement shall have the same meaning herein as in the Loan Agreement unless the
context clearly indicates otherwise.

         2. Section 1.01 of the Loan Agreement is hereby amended by deleting the
definition of "Owner's Equity" and inserting the following in its stead:

            "Owner's Equity" means, as of the date of determination, (i) net
            worth minus (ii) the aggregate amount of all investments made
            pursuant to Section 6.04(h) hereof, in each case determined and
            Consolidated for the Borrowers and their Subsidiaries in accordance
            with GAAP.

         3. Section 6.04 of the Loan Agreement is hereby amended to include the
following Section 6.04(h):

<PAGE>

            (h) other investments in an aggregate amount not to exceed Two
            Million and 00/100 Dollars ($2,000,000.00) at any time.

         4. The provisions of Section 2 and 3 of this Second Amendment shall not
become effective until the Agent has received this Second Amendment, duly
executed by the Borrowers and each Bank.

         5. Each Borrower hereby reconfirms and reaffirms all representations
and warranties, agreements and covenants made by it pursuant to the terms and
conditions of the Loan Agreement, except as such representations and warranties,
agreements and covenants may have heretofore been amended, modified or waived in
writing in accordance with the Loan Agreement.

         6. Each Borrower hereby represents and warrants to the Banks and the
Agent that (i) such Borrower has the legal power and authority to execute and
deliver this Second Amendment, (ii) the officers of such Borrower executing this
Second Amendment have been duly authorized to execute and deliver the same and
bind such Borrower with respect to the provisions hereof, (iii) the execution
and delivery hereof by such Borrower and the performance and observance by such
Borrower of the provisions hereof and of the Loan Agreement and all documents
executed or to be executed therewith, do not violate or conflict with the
organizational agreements of such Borrower or any Law applicable to such
Borrower or result in a breach of any provision of or constitute a default under
any other agreement, instrument or document binding upon or enforceable against
such Borrower, and (iv) this Second Amendment, the Loan Agreement and the
documents executed or to be executed by such Borrower in connection herewith or
therewith constitute valid and binding obligations of such Borrower in every
respect, enforceable in accordance with their respective terms.

         7. Each Borrower represents and warrants that (i) no Event of Default
exists under the Loan Agreement, nor will any occur as a result of the execution
and delivery of this Second Amendment or the performance or observance of any
provision hereof, (ii) the Schedules attached to and made a part of the Loan
Agreement, as amended by this Second Amendment, are true and correct in all
material respects as of the date hereof, and (iii) it presently has no known
claims or actions of any kind at Law or in equity against the Banks or the Agent
arising out of or in any way relating to the Loan Documents.

         8. Each reference to the Loan Agreement that is made in the Loan
Agreement or any other document executed or to be executed in connection
therewith shall hereafter be construed as a reference to the Loan Agreement as
amended hereby.

         9. The agreements contained in this Second Amendment are limited to the
specific agreements made herein. Except as amended hereby, all of the terms and
conditions of the Loan Agreement shall remain in full force and effect. This
Second Amendment amends the Loan Agreement and is not a novation thereof.

         10. This Second Amendment may be executed in any number of counterparts
and by the different parties hereto on separate counterparts each of which, when
so executed, shall be deemed to be an original, but all such counterparts shall
constitute but one and the same instrument.

                                      -2-
<PAGE>

         11. This Second Amendment shall be governed by, and shall be construed
and enforced in accordance with, the Laws of the Commonwealth of Pennsylvania
without regard to the principles of the conflicts of law thereof. Each Borrower
hereby consents to the jurisdiction and venue of the Court of Common Pleas of
Allegheny County, Pennsylvania and the United States District Court for the
Western District of Pennsylvania with respect to any suit arising out of or
mentioning this Second Amendment.

                           [INTENTIONALLY LEFT BLANK]

                                      -3-
<PAGE>

                  IN WITNESS WHEREOF, and intending to be legally bound, the
parties hereto have caused this Second Amendment to be duly executed by their
duly authorized officers as of the date above written.
<TABLE>
<CAPTION>
<S>                                                           <C>
Attest:                                                       Michael Baker Corporation

By:    /s/ H. James McKnight                                  By:    /s/ William P. Mooney
       -------------------------------------------                   ------------------------------------------

Name:  H. James McKnight                                      Name:  William P. Mooney
       -------------------------------------------                   ------------------------------------------

Title: Executive Vice President, General                      Title: EVP & CFO
       -------------------------------------------                   ------------------------------------------
       Counsel & Secretary
       -------------------------------------------

Attest:                                                       Michael Baker, Jr., Inc.

By:    /s/ H. James McKnight                                  By:    /s/ William P. Mooney
       -------------------------------------------                   ------------------------------------------

Name:  H. James McKnight                                      Name:  William P. Mooney
       -------------------------------------------                   ------------------------------------------

Title:  Executive Vice President, General                     Title: EVP & CFO
       -------------------------------------------                   ------------------------------------------
       Counsel & Secretary
       -------------------------------------------

Attest:                                                       Baker/MO Services, Inc.

By:    /s/ H. James McKnight                                  By:    /s/ William P. Mooney
       -------------------------------------------                   ------------------------------------------

Name:  H. James McKnight                                      Name:  William P. Mooney
       -------------------------------------------                   ------------------------------------------

Title: Executive Vice President, General                     Title:  EVP & CFO
       -------------------------------------------                   ------------------------------------------
       Counsel & Secretary
       -------------------------------------------

Attest:                                                       Baker/OTS, Inc.

By:    /s/ H. James McKnight                                  By:    /s/ William P. Mooney
       -------------------------------------------                   ------------------------------------------

Name:  H. James McKnight                                      Name:  William P. Mooney
       -------------------------------------------                   ------------------------------------------

Title: Executive Vice President, General                      Title: EVP & CFO
       -------------------------------------------                  ------------------------------------------
       Counsel & Secretary
       -------------------------------------------

Attest:                                                       Baker Engineering NY, Inc.

By:    /s/ H. James McKnight                                  By:    /s/ William P. Mooney
       -------------------------------------------                   ------------------------------------------

Name:  H. James McKnight                                      Name:  William P. Mooney
       -------------------------------------------                   ------------------------------------------

Title: Executive Vice President, General                      Title: EVP & CFO
       -------------------------------------------                   ------------------------------------------
       Counsel & Secretary
       -------------------------------------------
</TABLE>

<PAGE>

                               Citizens Bank of Pennsylvania, as Agent and
                               for itself as a Bank

                               By:    /s/ Mark Latterner
                                      ----------------------------------------

                               Name:  Mark Latterner
                                      ----------------------------------------

                               Title: V.P.
                                        --------------------------------------

                               National City Bank of Pennsylvania

                               By:    /s/ Susan J. Dimmick
                                      ---------------------------------------

                               Name:  Susan J. Dimmick
                                      ----------------------------------------

                               Title: Vice President
                                      ----------------------------------------

                               Fifth Third Bank

                               By:    /s/ Christopher S. Helmeci
                                      ----------------------------------------

                               Name:  Christopher S. Helmeci
                                      ----------------------------------------

                               Title: Vice President
                                      ----------------------------------------<PAGE>
                                                                  Exhibit 10.1

                            SHARE EXCHANGE AGREEMENT

This Agreement dated for reference the 30th day of July, 2002.

BETWEEN:

                  The undersigned SHAREHOLDERS of Mymetics S.A., more
                  particularly described on the signature pages hereto

                  (collectively, the "SHAREHOLDERS")

AND:

                  MYMETICS CORP, a corporation organized under the laws of
                  Delaware in the United States, with an address at 706 Giddings
                  Avenue, Suite 1C, Annapolis, MD 21401-1472, USA.

                  ("PARENTCO")

WHEREAS:

A.       Each Shareholder owns the Mymetics S.A. Common Shares as set forth
         beside his name on the signature pages hereto; and

B.       The Shareholders propose to contribute to ParentCo their Mymetics S.A.
         Common Shares in consideration for ParentCo Shares, upon the terms and
         conditions set forth herein.

NOW THEREFORE, the parties hereto agree as follows:

1.       DEFINITIONS

For the purposes of this Agreement, including the recitals, and any amendments
hereto, unless the context otherwise requires, the following words and phrases
shall have the following meanings, respectively:

1.1 "AGREEMENT" means this share exchange agreement and any Schedules hereto, as
amended, supplemented or restated from time to time;

1.2 "MYMETICS S.A." means Mymetics S.A., a societe anonyme organized under the
laws of France, with an address at 52, avenue Chanoine Cartellier, F-69230
Saint-Genis-Lavel, France;

1.3 "MYMETICS S.A. COMMON SHARES" means the common shares in the capital of
Mymetics S.A.;

1.4 "LOSSES", in respect of any matter, means all claims, demands, proceedings,
losses, damages, liabilities, deficiencies, costs and expenses (including,
without limitation, all legal and other professional fees and disbursements,
interest, penalties and amounts paid in settlement) arising directly or
indirectly as a consequence of such matter;

1.5 "PARENTCO COMMON SHARES" means the common shares in the capital of ParentCo.

<PAGE>

2.       EXCHANGE OF SHARES

2.1 Subject to the terms and conditions hereof, each of the Shareholders shall
contribute to ParentCo the Mymetics S.A. Common Shares as set forth beside his
name on the signature pages hereto and ParentCo shall issue to each Shareholder
4,265.77 ParentCo Common Shares for each Mymetics S.A. Share set forth beside
such Shareholder's name on the signature pages hereto.

2.2 Subject to the terms and conditions hereof, the securities to be contributed
or issued hereunder shall be delivered to the respective parties as each in
writing shall direct.

3.       REPRESENTATIONS AND WARRANTIES OF PARENTCO

3.1 ParentCo, by its acceptance hereof, represents and warrants to the
Shareholders that the statements contained in Schedule "A" hereto are correct
and complete as of the date of this Agreement and shall be correct and complete
as of the Closing Date (as though made then) and acknowledges and confirms that
the Shareholders are relying upon such representations and warranties in
connection with the transactions contemplated herein.

4.       REPRESENTATIONS AND WARRANTIES OF THE SHAREHOLDERS

4.1 The Shareholders severally represent and warrant to ParentCo that the
statements contained in this Section 4.1 are correct and complete as of the date
of this Agreement and shall be correct and complete as of the Closing Date (as
though made then) and hereby acknowledge and confirm that ParentCo is relying
upon such representations and warranties in connection with the transactions
contemplated herein:

         (a)      each Shareholder has all necessary power and authority to
                  execute and deliver this Agreement and to perform its
                  obligations hereunder;

         (b)      this Agreement has been duly executed and delivered by and on
                  behalf of each Shareholder and constitutes legal, valid and
                  binding obligations of each Shareholder enforceable against
                  such Shareholder in accordance with its terms;

         (c)      the Mymetics S.A. Common Shares owned by each Shareholder are
                  owned by such Shareholder as the sole legal and beneficial
                  owner of record with good, full and marketable title thereto,
                  free and clear of any mortgages, liens, charges, restrictions,
                  security interests, adverse claims, pledges, encumbrances or
                  demands whatsoever, and are issued and outstanding as fully
                  paid and non-assessable,

         (d)      no person, firm or corporation has any agreement or option, or
                  any right or privilege (whether by law, pre-emptive or
                  contractual) capable of becoming an agreement or option for
                  the purchase, acquisition, transfer or contribution from any
                  Shareholder of any of the Mymetics S.A. Common Shares or any
                  interest therein or right thereto owned by such Shareholder,
                  other than pursuant hereto; and

         (e)      there is no legal or regulatory action or proceeding pending
                  or threatened by any person to enjoin, restrict or prohibit
                  the contribution of the Mymetics S.A. Common Shares by each
                  Shareholder as contemplated herein.

4.2 In addition to the representations and warranties made in Section 4.1
hereof, the Shareholders severally represent and warrant to ParentCo that the
statements contained in Schedule "B" hereto are correct and complete as of the
date of this Agreement and shall be correct and complete as of the Closing Date
(as though made then) and hereby acknowledge and confirm that ParentCo is
relying upon such representations and warranties in connection with the
transactions contemplated herein.

                                     - 2 -
<PAGE>

5.       COVENANTS OF THE PARTIES

5.1 The parties hereby covenant that each shall use all commercially reasonable
efforts to take all action and do all things necessary, proper or advisable in
order to consummate and make effective the transactions contemplated by this
Agreement;

6.       CLOSING PROCEDURE

6.1 The closing of the transactions contemplated herein shall take place on the
date to be determined in the sole discretion of ParentCo, such date not to be
later than July 31, 2002, at the offices of Mymetics S.A. at 52, av Chanoine
Cartellier, 69230 Saint Genis Laval or at such other time or place as may be
mutually agreed upon. The date of the closing of the transactions contemplated
in this Agreement is referred to herein as the "CLOSING DATE" and the time of
closing on such date is referred to herein as the "TIME OF CLOSING".

6.2 At the Time of Closing on the Closing Date, ParentCo shall:

         (a)      deliver to each Shareholder 4,265.77 ParentCo Common Shares
                  issued to such Shareholder for each Mymetics S.A. Common Share
                  currently held by such Shareholder; and

         (b)      deliver or cause to be delivered such other documents as are
                  required or contemplated to be delivered by ParentCo pursuant
                  to this Agreement.

6.3 At the Time of Closing on the Closing Date, the Shareholders shall:

         (a)      deliver or cause to be delivered to ParentCo transfer forms
                  (i.e., ordres de mouvement) representing the Mymetics S.A.
                  Common Shares owned by each Shareholder duly executed for
                  contribution to ParentCo;

         (b)      deliver or cause to be delivered such other documents as are
                  required or contemplated to be delivered by the Shareholders
                  pursuant to this Agreement.

7.       CONDITIONS OF CLOSING

7.1 The obligation of ParentCo to complete the transactions contemplated herein
shall be subject to the following conditions to be fulfilled and/or performed at
or prior to the Time of Closing on the Closing Date:

         (a)      the representations and warranties of the Shareholders
                  contained in this Agreement shall be true and correct in all
                  material respects at the Time of Closing, with the same force
                  and effect as if such representations and warranties were made
                  at and as of such time; and

         (b)      the Shareholders shall have complied with all covenants and
                  agreements herein agreed to be performed or caused to be
                  performed by them.

7.2 In the event that the conditions referred to in Section 7.1 hereof shall not
have been fulfilled at or prior to the Time of Closing to the satisfaction of
ParentCo, acting reasonably, or waived by ParentCo, or in the event that the
Closing Date has not occurred on or prior to July 31, 2002, this Agreement shall
be rescinded and ParentCo shall be released from all obligations hereunder.

7.3 The obligation of the Shareholders to complete the transactions contemplated
herein shall be subject to the following conditions to be fulfilled and/or
performed at or prior to the Time of Closing on the Closing Date:

                                     - 3 -
<PAGE>

         (a)      the representations and warranties of ParentCo contained in
                  this Agreement shall be true and correct in all material
                  respects at the Time of Closing, with the same force and
                  effect as if such representations and warranties were made at
                  and as of such time;

         (b)      ParentCo shall have complied with all covenants and agreements
                  herein agreed to be performed or caused to be performed by it;
                  and

7.4 In the event that the conditions referred to in Section 7.3 hereof shall not
have been fulfilled at or prior to the Time of Closing to the satisfaction of
the Shareholders, acting reasonably, or waived by the Shareholders, or in the
event that the Closing Date has not occurred on or prior to July 31, 2002, this
Agreement shall be rescinded and the Shareholders shall be released from all
obligations hereunder.

8.       INDEMNIFICATION

8.1 ParentCo agrees to indemnify and save harmless the Shareholders from all
Losses suffered or incurred by the Shareholders as a result of or arising
directly or indirectly out of or in connection with: (i) any breach by ParentCo
of or any inaccuracy of any representation or warranty of ParentCo; or (ii) any
breach or non-performance by ParentCo of any covenant to be performed by it that
is contained in this Agreement or in any agreement, certificate or other
document delivered pursuant hereto.

8.2 Each Shareholder severally agrees to indemnify and save harmless ParentCo
from all Losses suffered or incurred by ParentCo as a result of or arising
directly or indirectly out of or in connection with: (i) any breach by such
Shareholder of or any inaccuracy of any representation or warranty of such
Shareholder; or (ii) any breach or non-performance by such Shareholder of any
covenant to be performed by it, that is contained in this Agreement or in any
agreement, instrument, certificate or other document delivered pursuant hereto.

10.      COSTS AND EXPENSES

10.1 All costs and expenses of or incidental to the transactions contemplated
herein are to be assumed and paid by the party incurring such costs and
expenses.

11.      NOTICES

11.1 Any notice required or permitted to be given hereunder to ParentCo shall be
given by notice in writing addressed to the President of ParentCo hand delivered
or sent by registered mail to the address mentioned on the first page of this
Agreement, or to any new address previously notified to the party giving the
notice. Any notice required or permitted to be given hereunder to a Shareholder
shall be given by notice in writing addressed to such Shareholder hand delivered
or sent by registered mail to the respective address mentioned on the signature
pages of this Agreement, or to any new address previously notified to the party
giving the notice. Any such notices shall be deemed to have been given and
received at the time of hand delivery or delivery by the relevant postal
service, as the case may be.

12.      SECTIONS AND HEADINGS

12.1 The division of this Agreement into Sections and the insertion of headings
are for convenience of reference only and shall not affect the interpretation of
this Agreement. Unless otherwise indicated, any reference in this Agreement to a
Section or a Schedule refers to the specified Section of or Schedule to this
Agreement.

13.      NUMBER, GENDER AND PERSONS

13.1 In this Agreement, words importing the singular number only shall include
the plural and vice versa, words importing gender shall include all genders and
words importing persons shall include individuals, corporations, partnerships,
associations, trusts, unincorporated organizations, governmental bodies and
other legal or business entities.

                                     - 4 -
<PAGE>

14.      SUCCESSORS AND ASSIGNS

14.1 All the terms and provisions of this Agreement shall be binding upon and
enure to the benefit of and be enforceable by the parties hereto and their
respective successors and permitted assigns but shall not be assignable prior to
the Time of Closing by a Shareholder without the written consent of ParentCo or
by ParentCo without the written consent of the Shareholders.

15.      SURVIVAL

15.1 It is understood and agreed that all warranties, representations,
covenants, indemnities and agreements of the parties herein contained or
contained in any certificates or documents submitted pursuant to or in
connection with the transactions contemplated herein shall survive the
completion of the transactions contemplated herein and the termination of this
Agreement and shall continue in full force and effect for the benefit of the
other parties for a period of two years following the Closing Date.

16.      FURTHER ASSURANCES

16.1 Each party to this Agreement covenants and agrees that, from time to time
subsequent to the Closing Date, it will, at the request and expense of the
requesting party, execute and deliver all such documents and do all such other
acts and things as any other party hereto, acting reasonably, may from time to
time request be executed or done in order to better evidence or perfect or
effectuate any provision of this Agreement or of any agreement or other document
executed pursuant to this Agreement or any of the respective obligations
intended to be created hereby or thereby.

17.      AMENDMENTS

17.1 This Agreement may be amended or modified by an agreement in writing
executed by the parties hereto. Except as aforesaid, no amendment, waiver or
modification of this Agreement shall be effective.

18.      SEVERABILITY

18.1 Should a provision of this Agreement be or become invalid, the validity of
the remaining provisions of this Agreement shall not be affected. The parties
hereto undertake to replace any such invalid provision without delay with a
valid provision which as nearly as possible duplicates the economic intent of
the invalid provision.

19.      ENGLISH VERSION

19.1 The parties hereby represent, warrant, acknowledge and agree that: (i) they
have agreed that this Agreement be drawn up in the English language; and (ii)
the English version of this Agreement shall govern for all purposes.

20.      GOVERNING LAW

20.1 This Agreement shall be construed and enforced in accordance with, and the
rights and obligations of the parties shall be governed by, the laws of the
State of Delaware in the United States.

21.      JURISDICTION

21.1 Each of the parties irrevocably agrees to the exclusive jurisdiction of the
courts in the State of Delaware in the United States.

                                     - 5 -
<PAGE>

22.      COUNTERPARTS

22.1 This Agreement may be executed in any number of counterparts, each of which
when delivered, either in original or facsimile form, shall be deemed to be an
original and all of which together shall constitute one and the same document.

IN WITNESS WHEREOF the parties have executed this Agreement in counterparts, one
for each party.

MYMETICS CORPORATION

Per:   /s/ John M. Musacchio
       -------------------------------------
       Authorized Signatory

                                     - 6 -
<PAGE>

THE FOLLOWING SHAREHOLDERS OF MYMETICS S.A.:

<TABLE>
<S>                                                       <C>
SIGNED, SEALED and DELIVERED by                     )
MICHELE ROSSI                                       )
in the presence of:                                 )
                                                    )
                                                    )
                                                             /s/ Michele Rossi
-----------------------------------------------------        ------------------------------------------
Signature                                           )        MICHELE ROSSI

-----------------------------------------------     )
Name                                                )
                                                    )
-----------------------------------------------     )        ------------------------------------------
Address                                             )        Address
                                                    )
-----------------------------------------------     )        ------------------------------------------
                                                    )
                                                    )        10
-----------------------------------------------              ------------------------------------------
Occupation                                                   Number of Mymetics S.A. Common Shares Held

SIGNED, SEALED and DELIVERED by                     )
ALESSANDRO ZUCCATO                                  )
in the presence of:                                 )
                                                    )
                                                    )
                                                             /s/ Alessandro Zuccato
-----------------------------------------------------        ------------------------------------------
Signature                                           )        ALESSANDRO ZUCCATO
                                                    )
-----------------------------------------------     )
Name                                                )
                                                    )
-----------------------------------------------     )        ------------------------------------------
Address                                             )        Address
                                                    )
-----------------------------------------------     )        ------------------------------------------
                                                    )
                                                    )        1
-----------------------------------------------     )        ------------------------------------------
Occupation                                                   Number of Mymetics S.A. Common Shares Held

SIGNED, SEALED and DELIVERED by                     )
GILLES ROSSI                                        )
in the presence of:                                 )
                                                    )
                                                    )
                                                    )        /s/ Gilles Rossi
-----------------------------------------------     )        ------------------------------------------
Signature                                           )        GILLES ROSSI
                                                    )
-----------------------------------------------     )        ------------------------------------------
Name                                                )
                                                    )
-----------------------------------------------     )        ------------------------------------------
Address                                             )        Address
                                                    )
-----------------------------------------------     )        ------------------------------------------
                                                    )
                                                    )        5
-----------------------------------------------     )        ------------------------------------------
Occupation                                                   Number of Mymetics S.A. Common Shares Held

</TABLE>

                                     - 7 -
<PAGE>

<TABLE>
<S>                                                        <C>
SIGNED, SEALED and DELIVERED by                     )
MARIANNE ROSSI                                      )
in the presence of:                                 )
                                                    )
                                                    )
                                                    )        /s/ Marianne Rossi
-----------------------------------------------     )        ------------------------------------------
Signature                                           )        MARIANNE ROSSI
                                                    )
-----------------------------------------------     )        ------------------------------------------
Name                                                )
                                                    )
-----------------------------------------------     )        ------------------------------------------
Address                                             )        Address
                                                    )
-----------------------------------------------     )        ------------------------------------------
                                                    )
                                                    )        2
-----------------------------------------------     )        ------------------------------------------
Occupation                                                   Number of Mymetics S.A. Common Shares Held

SIGNED, SEALED and DELIVERED by                     )
JEAN-LOUP ROSSI                                     )
in the presence of:                                 )
                                                    )
                                                    )
                                                    )        /s/ Jean-Loup Rossi
-----------------------------------------------     )        ------------------------------------------
Signature                                           )        JEAN-LOUP ROSSI
                                                    )
-----------------------------------------------     )        ------------------------------------------
Name                                                )
                                                    )
-----------------------------------------------     )        ------------------------------------------
Address                                             )        Address
                                                    )
-----------------------------------------------     )        ------------------------------------------
                                                    )
                                                    )        2
-----------------------------------------------     )        ------------------------------------------
Occupation                                                   Number of Mymetics S.A. Common Shares Held

SIGNED, SEALED and DELIVERED by                     )
MARIANNE AND JEAN-LOUP ROSSI (JOINTLY) )
in the presence of:                                 )
                                                    )
                                                    )
                                                    )        /s/ Marianne and Jean-Loup Rossi (Jointly)
-----------------------------------------------              ------------------------------------------
Signature                                           )        MARIANNE AND JEAN-LOUP ROSSI (JOINTLY)
                                                    )
-----------------------------------------------     )        ------------------------------------------
Name                                                )
                                                    )
-----------------------------------------------     )        ------------------------------------------
Address                                             )        Address
                                                    )
-----------------------------------------------     )        ------------------------------------------
                                                    )
                                                    )        1
-----------------------------------------------     )        ------------------------------------------
Occupation                                                   Number of Mymetics S.A. Common Shares Held
</TABLE>

                                     - 8 -
<PAGE>

                                  SCHEDULE "A"

                   REPRESENTATIONS AND WARRANTIES OF PARENTCO

(a)      ParentCo has been duly organized and is validly existing and in good
         standing under the laws of its jurisdiction of organization. ParentCo
         is duly authorized to conduct business and is in good standing under
         the laws of each jurisdiction where such qualification is required.
         ParentCo has full corporate power and authority to carry on the
         businesses in which it is engaged and to own and use the properties
         owned and used by it.

(b)      ParentCo has all necessary power and authority to execute and deliver
         this Agreement and to perform its obligations hereunder. This Agreement
         has been duly executed and delivered by and on behalf of ParentCo and
         constitutes legal, valid and binding obligations of ParentCo
         enforceable against ParentCo in accordance with its terms.

<PAGE>

                                       B-3

                                  SCHEDULE "B"

               REPRESENTATIONS AND WARRANTIES OF THE SHAREHOLDERS

(a)      There is no action, proceeding or investigation pending or, to the
         knowledge of the Shareholders, after due inquiry, threatened, against
         or affecting Mymetics S.A., at law or in equity or before or by any
         federal, state, local or other governmental department, commission,
         board or agency, domestic or foreign, which could in any way materially
         adversely affect Mymetics S.A. or the condition (financial or
         otherwise) of Mymetics S.A..

(b)      there is no person, firm or corporation acting or purporting to act for
         Mymetics S.A. entitled to any brokerage or finder's fee in connection
         with this Agreement or any of the transactions contemplated hereunder,
         other than pursuant to the Bank Agreements.

(c)      Each Shareholder acknowledges that the ParentCo Common Shares issued
         pursuant hereto have not been registered under the U.S. Securities Act
         of 1933, as amended, and may be offered, sold or otherwise transferred
         only: (i) to ParentCo; (ii) outside the U.S. in accordance with Rule
         904 of Regulation S under the U.S. Securities Act of 1933, as amended;
         or (iii) inside the U.S. in accordance with: (A) Rule 144A under the
         U.S. Securities Act of 1933, as amended; (B) Rule 144 under the U.S.
         Securities Act of 1933, as amended, if applicable; or (C) with the
         prior written consent of ParentCo, another exemption from registration
         under the U.S. Securities Act of 1933.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00041-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00041-of-00352.parquet"}]]