Document:

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              AMENDMENT AND SUPPLEMENT TO COMMON STOCK INVESTMENT-

                                   TERM SHEET

On August 17, 2000, TCO Investment Inc. (hereinafter the "Investor") and
Constellation 3D, Inc. (hereinafter "C3D") entered into a Common Stock
Investment agreement (the "Common Stock Agreement") by which the Investor
purchased 25,000 shares of Common Stock of C3D at $10.00 per share.

Investor and C3D wish to amend and supplement the Common Stock Agreement to
provide to Investor five (5) year warrants to purchase C3D's Common Stock at an
exercise price equal to 100% of the price of the Common Stock at the time of
closing. For every one (1) share purchased, the Investor will receive a warrant
to purchase one (1) share of Common Stock.

The warrants will be issued as follow:

Guldborg International             15,000

Erlengut,

CH 5600 Lenzburg 1,

Switzerland

Farpell Inc.                       10,000

Misiones 1487 , planta baja

Montevideo

Uruguay

The Common Stock Agreement and this Amendment supersede all other prior or
written agreements between the Investor and C3D, and contain the entire
understanding of the parties with respect to the matters covered herein and
therein. No provision may be amended other than by an instrument in writing
signed by C3D and the Investor, and no provision may be waived other than by an
instrument in writing signed by the party against whom enforcement is sought.

IN WITNESS WHEREOF, the parties have caused this Amendment to be duly executed
as of August 18, 2000.

Constellation 3D, Inc.                        TCO INVESTMENT INC.
                                              -------------------

    /s/Ronen Yaffe                                /s/ Pablo Berezovsky
    -----------------------------                 --------------------------
By:  Ronen Yaffe                              By:
Title: Treasurer                              Title: By Proxy<PAGE>
                              CONTRACT FOR SERVICES

         AND NOW, TO-WIT, this 11th day of May, 2000, it is hereby agreed and
understood between CONSTELLATION 3D, INC., an American corporation (herein
referred to as "the Company"), of 235 West 76th Street, Suite 8D, New York, New
York 10023-8314, and GREENLAND INVESTMENTS, INC. (herein referred to as
"Maloney"), Apt C4D, "Les Floralies", 1-5 Avenue de Grande-Bretagne, Monte-
Carlo, MC 98000, Monaco, that,

         For good and valuable consideration, receipt of which is acknowledged
herein, the parties hereby agree to the following:

                                 As to Maloney:

1)   The Company has retained (for over one [1] year) Maloney as a business
     development and public relations consultant on its behalf;

2)   Maloney's duties have and will include, but not be limited to the
     following:

     a)   Developing business leads within the industry;
     b)   Seek out, develop and bring to the Board for closure strategic
          alliances and acquisitions;
     c)   Obtaining press, journal, periodical and media coverage;
     d)   Attending certain industry trade shows and conferences;
     e)   Working with the investment community, as directed;
     f)   Coordinating the Company's Public Relations efforts;
     g)   Responding or coordinating responses to inquiries from telephone, web
          site or press releases;
     h)   And whatever business development duties the Board might delegate to
          Maloney during the course of this contract.

     The Company may require Maloney to perform such duties within the United
     States for up to 5 business days per month during the term hereof.

3)   Maloney shall, at all times, act in the best interest of the Company and in
     accordance with Board mandate.

4)   Any information of a proprietary nature gained by Maloney shall remain the
     exclusive property of the Company and shall only be properly disclosed by
     Maloney in the course of his employment with consent of the Board.

                                      -1-
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                               As to the Company:

5)   The Company agrees to compensate Maloney as follows:

     a)   Maloney shall receive options to purchase up to four hundred fifty
          thousand (450,000) shares of Company common stock at five (UD$5.00) US
          dollars per share.

6)   Said options shall vest at the conclusion of Maloney's contract term, which
     shall end June 30, 2000.

7)   The Company agrees to reimburse expenses as follows:

     a)   Expenses under two hundred (US$200.00) US dollars, said expenses shall
          be forwarded to the Company with receipts.

     b)   Expenses over two hundred (US$200.00) US dollars shall require advance
          approval, in writing, by an officer or director of the Company, or
          else said expenses shall be the responsibility of Maloney.

8)   The Company agrees to support Maloney's business development efforts in a
     reasonable and prudent manner.

Intending to be legally bound hereto, the parties set their hands and seal on
the date set above.

CONSTELLATION3D, INC.                       GREENLAND INVESTMENTS, INC.

By:  /s/ Eugene Levich                      By:   /s/ Patrick Maloney
     -----------------------                      --------------------
Its:                                        Its:  Director
     -----------------------                      --------------------<PAGE>

                             STOCK OPTION AGREEMENT

         This Stock Option Agreement ("Agreement"), dated as of August 22, 2000,
is made by and between Constellation 3D, Inc., a Florida corporation (the
"Company") and Vladimir Schwartz, Chief Technology Officer of the Company (the
"Optionee").

         WHEREAS, the Company's Board of Directors has determined that it would
be in the best interests of Company to grant the option provided for hereby to
Optionee, in consideration for his past, present and future services as an
employee of the Company.

         NOW, THEREFORE, in consideration of the promises and the mutual
covenants contained herein, and intending to be legally bound, the parties
hereto agree as follows:

1.      Grant of Option. Optionee is hereby granted an option (the "Option") to
purchase One Hundred and Fifty Thousand (150,000) shares of Stock at any time or
from time to time, as a whole or in part, from the date of the execution of this
Agreement, and Two Hundred and Fifty Thousand (250,000) shares of Stock
(collectively, "Option Shares") at any time or from time to time, as a whole or
in part, after one year from the date of execution of this Agreement, on the
terms and conditions set forth in this Agreement.

2.       Termination of Option. The Option shall terminate on August 22, 2004.

3.       Purchase Price. The purchase price of the Option Shares shall be $11.25
per share ("Purchase Price").

4.       Method of Exercise. Notice of exercise shall be deemed given when
delivered to the Secretary or Treasurer of the Company (the "Exercise Date").
Optionee may exercise the Option only by written notice to the Company stating
(i) that the Option is being exercised, and (ii) the number of Option Shares
desired to be purchased, accompanied or followed by cash, wire transfer, check,
or money order in an amount equal to the aggregate Purchase Price of the Option
shares being purchased (i.e., the number of Option Shares exercised multiplied
by the Purchase Price).

5.       Transferability of Option. Subject to compliance with applicable
federal and state securities laws, this Stock Option Agreement may be
transferred by the Optionee with respect to any or all of the Option Shares
purchasable hereunder. Upon surrender of this Stock Option Agreement to the
Company, together with the assignment hereof, properly endorsed, for transfer of
this Stock Option Agreement as an entirety by the Optionee, the Company shall
issue a new Stock Option Agreement of the same denomination to the assignee.
Upon surrender of this Stock Option Agreement to the Company, together with the
assignment hereof properly endorsed, by the Optionee for transfer with respect
to a portion of the Option Shares purchasable hereunder, the Company shall issue
a new Stock Option Agreement to the assignee, in such denomination as shall be
requested by the Optionee hereof, and shall issue in such denomination as shall
be requested by the Optionee hereof, and shall issue to such Optionee a new
Stock Option Agreement covering the number of Option Shares in respect of which
this Stock Option Agreement shall not have been transferred.

6.       Change in Number of Shares of Stock. If and to the extent that the
number of issued shares of Stock shall be increased or reduced by change in par
value, split-up, reclassification, reorganization, merger, distribution of a
dividend payable in stock, or the like, the number of shares of Stock subject to
this Option Agreement and the Purchase Price may be proportionately adjusted in
good faith by the Company's Board of Directors.

7.       Rights Prior to Exercise of Option. Optionee shall have no rights as a
stockholder with respect to the Option Shares until payment of the Purchase
Price and delivery to him of such Stock as herein provided.

8.       Agreement Binding. This Agreement shall inure to the benefit of and be
binding upon the parties hereto and their respective next of kin, legatees,
administrators, executors, legal representatives, successors, and assigns
(including remote, as well as immediate, successors to and assignees of said
parties).

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9.       Severability. In case one or more provisions of this Agreement shall be
found to be invalid, illegal, or unenforceable in any respect, the validity,
legality and enforceability of the remaining provisions contained herein shall
not be in any way affected or impaired thereby.

10.      Entire Agreement. This Agreement contains the entire understanding and
agreement between the parties hereto, relating to the subject matter hereof, and
cannot be amended, modified or supplemented in any respect, except by subsequent
written agreement entered into by all of the parties hereto.

11.      Governing Law. This Agreement shall be construed under and governed by
the laws of the State of Florida.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed on the date set forth above.

CONSTELLATION 3D, INC.

By:      /s/ Eugene Levich                                 /s/ Vladimir Schwartz
         -------------------                               ---------------------
         Eugene Levich,                                    Vladimir Schwartz
         President

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