Document:

Exhibit 4.8 [ + ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT,
MARKED BY BRACKETS,  HAS BEEN OMITTED AND FILED  SEPARATELY  WITH THE SECURITIES
AND EXCHANGE  COMMISSION PURSUANT TO RULE24B-2 OF THE SECURITIES EXCHANGE ACT OF
1934, AS AMENDED.

                                                                     Exhibit 4.8

                 ASSIGNMENT AGREEMENT BETWEEN DR. LELAND SHAPIRO
                            AND CAVIT SCIENCES, INC.

     WHEREAS,  LELAND  SHAPIRO,   residing  at  [+++++++++++],   an  individual,
(hereinafter  referred as "ASSIGNOR") has invented a certain invention  entitled
"METHODS AND  COMPOSITIONS  FOR TREATMENT OF VIRAL  INFECTIONS",  for which a US
Utility  application was filed in the United States Patent and Trademark  Office
on DECEMBER 12, 2005,  assigned  SERIAL NUMBER  [+++++++++]  and for which a PCT
application  was filed in the  United  States  Patent  and  Trademark  Office on
DECEMBER  12,  2005,   assigned  SERIAL  NUMBER   [+++++++++++]   (collectively,
"INVENTION") and has a fifty-percent interest in said INVENTION;

     WHEREAS,  CAVIT  SCIENCES,  INC. a company  having its  principal  place of
business at 100 East Linton  Blvd.,  Suite 106B,  Delray  Beach,  Florida  33483
(referred to hereinafter as  "ASSIGNEE"),  its  successors,  assigns,  and legal
representatives,  desires to obtain Assignor's entire right,  title and interest
in, to and under said INVENTION,  and in, to and under Letters Patent or similar
legal protection to be, or having been,  obtained therefore in the United States
of America,  its territorial  possessions  and in any and all countries  foreign
thereto;

     WHEREAS,  Assignor  agrees to assign his patent  application  rights to the
INVENTION to Assignee;

     NOW,  THEREFORE,  for good and valuable  consideration,  the sufficiency of
which is hereby acknowledged, the parties agree as follows:

     1.  Assignor  agrees  to  assign  the above  patent  application  rights to
Assignee and execute assignment documents in the forms as attached in Appendix A
and B. It is understood that Assignee has done its due diligence with respect to
the INVENTION and that the Assignor makes no representation or warranties of any
kind  regarding the  INVENTION,  except that he has not made or entered into any
prior agreements that would conflict with the above assignment.

     2.  Assignor  agrees  to  assign  the above  patent  application  rights to
Assignee once this  Assignment  Agreement has been executed by both the Assignor
and Assignee and the initial $10,000  payment  described below has been received
by the Assignor.

     3.  Assignor  agrees  to keep  the  Information,  as  hereinafter  defined,
confidential  and will not, except as required by applicable law,  regulation or
legal  process,   without   Assignee's  prior  written  consent,   disclose  any
Information  to a third  party and will not use any  Information  other  than in
connection  with and/or  promotion  of  Assignee's  business.  In the event that
Assignor is requested pursuant to, or required by, applicable law, regulation or
<PAGE>
legal process to disclose any of the Information,  Assignor will notify Assignee
promptly  so that  Assignee  may seek a  protective  order or other  appropriate
remedy,  or waive  compliance  with the terms herein.  In the event that no such
protective  order or other remedy is obtained,  or that  Assignee does not waive
compliance, in a reasonable period of time, Assignor shall be free to respond to
the legal process.  Information  shall mean any testing results,  documentation,
literature,  reports technology or any other proprietary  information related to
said Invention.

     4. Assignee agrees to pay Assignor a total of $30,000 as follows:

     1)   $10,000 upon execution of this Assignment Agreement;

     2)   $10,000 on or before December 10, 2006

     3)   $10,000 on or before) May 10, 2007

     5. Assignee agrees not to assign,  license or otherwise  transfer or permit
the   exploitation   of   (collectively,   "Transfer")   any   interest  in  the
above-mentioned  patent  applications,  assigned by Assignor to Assignee , until
Assignor  has been paid the $30,000 in full.  In the event of a Transfer of such
interest by Assignee in violation of this provision,  then the unpaid balance of
the $30,000 shall become immediately due and payable to assignor.

     6. Assignee agrees that the application rights will be immediately assigned
back to Assignor,  at  Assignee's  sole  expense,  including  any of  Assignor's
reasonable attorney's fees to effect or enforce such re-assignment,  if Assignee
defaults in payments in accordance with the terms herein. .

     7.  This   Assignment   Agreement  shall  be  governed  by  and  construed,
interpreted  and enforced in  accordance  with the internal laws of the State of
Colorado.

     8. All notices and other  communications  required or permitted shall be in
writing  and shall be deemed  given or  delivered  when  sent by  registered  or
certified mail to the party's address written above.

     9.  Any  controversy,  dispute  or  claim  arising  under  this  Assignment
Agreement  shall be settled by  Arbitration  conducted in Denver,  Colorado by a
single  Arbitrator  in  accordance  with the rules of the  American  Arbitration
Association as then in effect.  The decision or award of the Arbitrator shall be
final and binding on the parties  and there shall be no appeal  therefrom  other
than gross negligence.  The prevailing party in any arbitration or litigation to
enforce any right or remedy under this Assignment agreement shall be entitled to
recover from the other party all  reasonable  costs and  expenses in  connection
with such action, including reasonable attorney's fees.

     IN WITNESS  WHEROF,  the parties  hereto have caused this  Agreement  to be
executed on this 7 day of July, 2006.

Leland Shapiro                                     Cavit Sciences, Inc.

/s/ Leland Shapiro                                 /s/ Colm J. King
---------------------------                        ---------------------------
By: Leland Shapiro                                 By: Colm J King
                                                   Its: CEOMARJAN MINING

                              Termination Agreement

                  Termination Agreement dated as of August 18, 2006 (this
"Agreement") among Caucasus Resources Pty Ltd, an Australian Company ("CR");
Global Gold Mining, LLC, a Delaware, USA limited liability company ("GGM"); and
SHA, LLC, an Armenian limited liability company, which is a subsidiary of GGM
("SHA").

                                    RECITALS

                  SHA is the licensee of the Marjan Mine property in Armenia as
shown in Annexure A to this Termination Agreement ("Marjan").

                  The parties are parties to a joint venture agreement dated as
of October 28, 2005 (the "JV Agreement"), which was intended to provide for the
development of Marjan. CR and CGM are also parties to a limited liability
company agreement dated December 2, 2005 (the "LLC Agreement"), pursuant to
which Marjan Mining Company, LLC ("MMCO") was organized as a Delaware limited
liability company.

                  The parties wish to terminate the JV Agreement and the LLC
Agreement and to liquidate MMCO.

                                    AGREEMENT

                  NOW THEREFORE, the parties hereto hereby agree as follows:

1. The JV Agreement is hereby terminated as of the date hereby and shall be of
no force or effect from such date. Accordingly SHA shall remain as licensee of
Marjan and MMCO shall have no right, title or interest in Marjan.

                  2. The parties shall promptly and diligently following
execution of this Termination Agreement proceed to dissolve and liquidate MMCO
in accordance with Article 13 of the LLC Agreement. Upon its dissolution, any of
the managers of MMCO or its counsel is hereby authorized to execute and file a
Certificate of Cancellation for MMCO in Delaware and its Cancellation of
Registration in Connecticut. Upon its liquidation, the LLC Agreement shall
automatically terminate; provided that the parties thereafter shall diligently
take all further action, if any, necessary to carry out the intention of the
present agreement.

<PAGE>

                  3. GGM and SHA release CR from all of its future obligations
under the JV Agreement and from and against all third party actions, claims,
suits, demands, damages, costs, interests and expenses whatsoever which, but for
the execution of this Termination Agreement, may now or at any time in the
future may be made against CR arising from the JV Agreement or the early
termination of the JV Agreement.

                  4. Any party may plead this Termination Agreement in bar
against any third party action, suit or other proceeding for any claim for a
breach of the JV Agreement which occurs following the date of this Termination
Agreement.

                  5. The provisions of Article 16, "Miscellaneous," of the LLC
Agreement, including the governing law and arbitration provisions, are
incorporated herein by reference and made applicable to this Agreement and the
parties hereto. The addresses for notices between the parties shall be those
respectively provided to each other most recently in writing or electronically.

                  IN WITNESS WHEREOF, the parties hereto have executed this
Agreement as of the date first above written.

CAUCASUS RESOURCES PTY LTD GLOBAL GOLD MINING, LLC

By: ___________________________     By: ___________________________
     Matthew Wood                        Van Krikorian
     Managing Director                   Manager

                                     SHA, LLC

                                     By: ___________________________
                                         Ashot Boghossian, DirectorFIRST AMENDMENT OF
             AUGUST 1, 2005 MEGO GOLD, LLC SHARE PURCHASE AGREEMENT

                                     Between

                             Global Gold Mining, LLC

                                       And

                    Karapet Khachatryan and Arthur Gevorgyan

                                  July 19, 2006

Pursuant to Article 11.8 of the Mego Gold, LLC (hereinafter the "Company") Share
Purchase Agreement which came into force on August 1, 2005 (hereinafter the
"Agreement"), the following terms amending the Agreement (hereinafter the
"Amendment") are agreed and accepted by Global Gold Mining, LLC (hereinafter
"Buyer") and Mr. Karapet Khachatryan, an individual resident in Armenia ("A"),
and Mr. Arthur Gevorgyan, an individual resident in Armenia ("B" and,
collectively with A consisting of forty nine percent of the "participants" of
Mego Gold, LLC an Armenian limited liability company, "Sellers") entered into as
of July 19, 2006.

                                    RECITALS

Sellers and Buyer wish to amend the Purchase Price terms of the Agreement to
give Buyer the option to pay Sellers the Two Million Dollar ($2,000,000) balance
of the purchase price due on August 1, 2007 to Sellers under the Agreement with
a combination of one payment of One Million Dollars ($1,000,000) and Five
Hundred Thousand shares of common stock of Global Gold Corporation (hereinafter
"GGC") along with certain possible adjustments, all on the terms and conditions
of this Amendment.

                             AMENDMENT TO AGREEMENT

1. Following Article 2.2 of the Agreement (Purchase Price) the following Article
2.2A is added:

                  "2.2A Buyer's Article 2.2(b) Option. At any time after July
                  19, 2006, in complete substitution of making the payment of
                  the Two Million Dollar ($2,000,000) portion of the Purchase
                  Price provided in Article 2.2(b), Buyer may elect to acquire
                  Sellers' remaining Forty Nine Percent (49%) of the Company as
                  follows:

(a)       By making one payment of One Million Dollars to Sellers ($1,000,000)
          by wire transfer to accounts designated by Sellers on or before August
          19, 2006 (with A being paid Five Hundred Ten Thousand Two Hundred Four
          Dollars ($510,204) and B being paid Four Hundred Eighty Nine Thousand
          Seven Hundred Ninety Six Dollars ($489,796)); and

<PAGE>

(b)       By delivering Five Hundred Thousand (500,000) common shares of GGC
          (Two Hundred  Fifty Five  Thousand  (255,000)  shares to A and Two
          Hundred Forty Five  Thousand  (245,000)  shares to B) on the terms of
          the GGC  Restricted Stock Grant attached as Exhibit 1 (the "GGC
          Shares"),  provided that if GGC common stock is not traded at a price
          per share of at least Two Dollars and Fifty Cents  ($2.50) at any time
          between July 1, 2007 and August 31, 2007, Sellers  shall have the
          right to sell to GGC all (but not less than all) of the 500,000  GGC
          Shares for the price of One  Million  Dollars on or before September
          15, 2007.  (Buyer and/or GGC shall maintain in a special  account
          segregated  from operating  funds One Million  Dollars  ($1,000,000)
          or at least  enough cash to cover the cash  payment  contingency  in
          this Article 2.2A(b)).

2.        This Amendment is binding on all of the parties as written, and may
          not be modified in any way unless in writing and signed by all
          parties.

3.        All other representations, warranties and other remaining provisions
          of the Agreement shall continue to remain in full force and apply to
          this Amendment as if made on the date of this Amendment.

      IN WITNESS WHEREOF, the Parties have executed this Amendment as of July
19, 2006.

      Signed by, for, and                        Signed for Buyer, Global
      on behalf of the Sellers                   Gold Mining, LLC

      -------------------                         By:
      Karapet Khachatryan                            -----------------------
                                                     Van Z. Krikorian, Manager

      -------------------
      Arthur Gevorgyan

<PAGE>

                                                                       EXHIBIT 1
                                    Global Gold Corporation
                                    45 East Putnam Avenue
                                    Greenwich, CT 06830

                                     , 2006
Mr.

Yerevan  Armenia

                  Re:      Restricted Stock Award

Dear Mr.:

As consideration for your sale of shares in Mego Gold, LLC ("Mego") to Global
Gold Mining, LLC (the "Company"), we hereby grant you [_____] shares of the
Common Stock of Global Gold Corporation (the "Corporation"), evidenced by a
certificate of shares of our common stock, $.001 par value per share (the
"Shares"), subject to applicable securities law restrictions and the terms and
conditions set forth herein:

                  1.       Commencing  with the date  hereof,  you  shall
                           become  fully  vested in 100% of the  total  Shares
                           granted hereunder.

                  2. (a) Any Shares granted hereunder may be transferred only in
accordance with applicable securities law restrictions. Any attempted transfer
in violation of such restrictions shall be null and void.

                     (b) Notwithstanding anything contained in this
Agreement to the contrary, after you become vested in any of the Shares granted
hereunder, no sale, transfer or pledge thereof may be effected without an
effective registration statement or an opinion of counsel for the Corporation
that such registration is not required under the Securities Act of 1933, as
amended, and any applicable state securities laws.

                  3. During the period commencing with the date hereof and prior
to your transfer of any of the Shares granted hereunder, you shall have all
right, title and interest in and to the Shares granted hereunder, including the
right to vote the Shares and receive dividends or other distributions with
respect thereto.

                  4. You shall be solely responsible for any and all Federal,
state and local income taxes arising out of your receipt of the Shares and your
future sale of other disposition of them.

                  5. This Agreement and the rights of the parties hereunder
shall be governed by and construed in accordance with the laws of the State of
New York, without regard to its conflicts of law principles. All parties hereto
(i) agree that any legal suit, action or proceeding arising out of or relating
to this Agreement shall be instituted only in a Federal or state court in the
City of New York in the State of New York, (ii) waive any objection which they
may now or hereafter have to the laying of the venue of any such suit, action or
proceeding, and (iii) irrevocably submit to the exclusive jurisdiction of any
Federal or state court in the City of New York in the State of New York, in any
such suit, action or proceeding, but such consent shall not constitute a general
appearance or be available to any other person who is not a party to this
Agreement. All parties hereto agree that the mailing of any process in any suit,
action or proceeding at the addresses of the parties shown herein shall
constitute personal service thereof.

<PAGE>

                  6. If any provision of this Agreement shall be held invalid or
unenforceable, such invalidity or unenforceability shall attach only to such
provision and shall not in any manner affect or render invalid or unenforceable
any other severable provision of this Agreement, and this Agreement shall be
carried out as if any such invalid or unenforceable provision were not contained
herein.

                  7. This Agreement and all the terms and provisions hereof
shall be binding upon and shall inure to the benefit of the parties and their
respective heirs and successors and, in the case of the Corporation, its
assigns.

                  8. This Agreement may not be amended except in a writing
signed by all of the parties hereto.

                  9. Nothing contained herein shall be construed to create an
employment agreement between the Corporation and you or require the Corporation
to employ or retain you under such a contract or otherwise.

                  10. In the event of any conflict between the terms of this
Agreement and of the Agreement, the provisions contained in this Agreement shall
control.

                  If this letter accurately reflects our understanding, please
sign the enclosed copy of this letter at the bottom and return it to us.

Very truly yours,

                                          Global Gold Corporation

                                         By:___________________________
                                            Drury J. Gallagher, Chairman

Agreed:

------------------------------

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