Document:

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                                                                    EXHIBIT 10.5

                                    AMENDMENT
                    TO THE EXECUTIVE SUPPLEMENTAL RETIREMENT
                        AGREEMENT DATED OCTOBER 20, 1999

     This Amendment, made and entered into this 23 day of March, 2004, by and
between Gwinnett Banking Company, a bank organized and existing under the laws
of the State of Georgia, hereinafter referred to as the "Bank," and Paul C.
Birkhead, an Executive of the Bank, hereinafter referred to as the "Executive,"
shall effectively amend the Executive Supplemental Retirement Agreement dated
October 20, 1999, as specifically set forth herein. Said agreement shall be
amended as follows:

     1.) Subparagraph II (C), Termination of Service, shall be deleted in its
entirety and replaced with the following:

     C.   Termination of Service:

          Subject to Subparagraph II (E), upon a Termination of Service, the
          Executive shall be entitled to receive one hundred percent (100%) of
          the Bank's accrued liability balance.

     This Amendment shall be effective the 1st day of January, 2004. To the
extent that any term, provision, or paragraph of said agreement is not
specifically amended herein, or in any other amendment thereto, said term,
provision, or paragraph shall remain in full force and effect as set forth in
said October 20, 1999 Agreement.

     IN WITNESS WHEREOF, the parties hereto acknowledge that each has carefully
read this Amendment and executed the original thereof on the first day as set
forth hereinabove, and that, upon execution, each has received a conforming
copy.

                                   GWINNETT BANKING COMPANY
                                   Lawrenceville, GA

<TABLE>
<S>                                <C>                                  <C>

/s/ Gail L. Vale                   By: /s/ John T. Hopkins III          EVP
--------------------------------       ------------------------------   Title
Witness

/s/ Beth R. Tynan                  /s/ Paul C. Birkhead
--------------------------------   ----------------------------------
Witness                            Paul C. Birkhead
</TABLE>

                                        1<PAGE>

                                  EXHIBIT 10.6

                        AMENDMENT TO EMPLOYMENT AGREEMENT

          THIS AMENDMENT TO EMPLOYMENT AGREEMENT ("Amendment") is made and
entered into as of the 21st day of December, 2004, by and between by and among
GBC BANCORP, INC., a Georgia corporation (the "Holding Company"); GWINNETT
BANKING COMPANY, a wholly-owned Georgia banking subsidiary of the Holding
Company (the "Bank") (collectively, "Employers"); and PAUL C. BIRKHEAD
("Executive").

                                   WITNESSETH:

          WHEREAS, the Holding Company, the Bank, and Executive previously
entered into an Employment Agreement effective as of January 1, 2004 (the
"Employment Agreement");

          WHEREAS, the parties desire to amend the Employment Agreement to amend
certain entitlements and responsibilities of Employers and Executive thereunder.

          NOW, THEREFORE, for and in consideration of the mutual covenants
herein contained, and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto do hereby agree
as follows:

     1. Paragraphs 7(c) and 7(d) of the Employment Agreement shall be deleted
and replace with the following new paragraphs 7(c) and 7(d), respectively:

          7(c) Event of Termination in Connection With a Change of Control. If,
     during the term of this Agreement and within one (1) year immediately
     following a Change of Control or within six (6) months immediately prior to
     such Change of Control, Executive's employment with Employers under this
     Agreement is terminated by an Event of Termination and if Executive
     faithfully abides by all of the covenants contained in Section 9 of this
     Agreement, then Employers shall pay to Executive, or in the event of his

                                      -1-

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     subsequent death, to his designated beneficiary or beneficiaries, or to his
     estate, as the case may be, as liquidated damages, in lieu of all other
     claims, a severance payment equal to two (2) times Executive's Total
     Compensation paid to Executive during the immediately preceding twelve (12)
     months, to be paid in equal installments and in accordance with Employers'
     regular payroll practices for the twenty-four (24) month period following
     the date of said Event of Termination.

          7(d) Termination of Employment for Good Reason. If (1) during the term
     of this Agreement and within one (1) year immediately following a Change of
     Control or within six (6) months immediately prior to such Change of
     Control, the status, character, capacity, location, or circumstances of
     Executive's employment as provided in paragraphs 2, 3, 4 and 6 of this
     Agreement have been materially and adversely altered by Employers, whether
     by

               (i) any material breach of this Agreement by Employers (including
          the failure of Bank to comply with paragraphs 2, 3, 4, 5 and 6 of this
          Agreement);

               (ii) any material and adverse change in the status,
          responsibilities or prerequisites of Executive;

               (iii) any assignment of duties materially and adversely
          inconsistent with Executive's position and duties described in this
          Agreement; or

               (iv) the failure of Employers to assign this Agreement to a
          successor in interest or the failure of the successor in interest to
          explicitly assume and agree to be bound by this Agreement,

     and (2) Executive terminates his employment under this Agreement for that
     reason and (3) Executive faithfully abides by all of the covenants
     contained in Section 9 of this

                                      -2-

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     Agreement, then Employers shall pay to Executive, or in the event of his
     subsequent death, his designated beneficiary or beneficiaries, or his
     estate, as the case may be, as liquidated damages, in lieu of all other
     claims, a severance payment equal to two (2) times Executive's Total
     Compensation paid to Executive during the immediately preceding twelve (12)
     months, to be paid in equal installments and in accordance with Employers'
     regular payroll practices for the twenty-four (24) month period following
     the date of said Event of Termination. Notwithstanding anything in this
     Section 7(d) to the contrary, Executive and Employers agree that a mere
     change in Executive's title(s) with Employers shall not constitute a
     material and adverse alteration in Executive's status, character, capacity,
     location, or circumstances of employment with Employers for purposes of
     this section as long as Executive's underlying duties and responsibilities
     with Employers are not materially and adversely changed or altered as well.

     2. The remaining provisions of the Employment Agreement shall remain in
full force and effect.

     3. This Amendment has been executed and delivered in the State of Georgia,
and its validity, interpretation, performance, and enforcement shall be governed
by the laws of said State.

                                      -3-

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          IN WITNESS WHEREOF, the Holding Company and the Bank have caused this
Amendment to be executed and its seal to be affixed hereunto by its duly
authorized officers, and Executive has signed this Amendment, as of the
Effective Date.

ATTEST:                                 GBC BANCORP, INC.

/s/ John T. Hopkins                     By: /s/ Larry D. Key
-------------------------------------       ------------------------------------
Secretary                               Name: Larry D. Key
                                        Title: President

(CORPORATE SEAL)

ATTEST:                                 GWINNETT BANKING COMPANY

/s/ John T. Hopkins                     By: /s/ Larry D. Key
-------------------------------------       ------------------------------------
Secretary                               Name: Larry D. Key
                                        Title: President

(BANK SEAL)

/s/ Beth R. Tynan                       /s/ Paul C. Birkhead             (SEAL)
-------------------------------------   ---------------------------------
Witness                                 PAUL C. BIRKHEAD

                                      -4-<PAGE>
                                                                    EXHIBIT 10.7

                                    AMENDMENT
                    TO THE EXECUTIVE SUPPLEMENTAL RETIREMENT
                        AGREEMENT DATED OCTOBER 20, 1999

      This Amendment, made and entered into this 1st day of June 2006, by and
between Gwinnett Banking Company, a bank organized and existing under the laws
of the State of Georgia, hereinafter referred to as the "Bank," and Paul C.
Birkhead, an Executive of the Bank, hereinafter referred to as the "Executive,"
shall effectively amend the Executive Supplemental Retirement Agreement dated
October 20, 1999, as specifically set forth herein. Said agreement shall be
amended by adding the following new Subparagraph II. G. at the end of Paragraph
II:

      "G.   Minimum Benefit:

            Notwithstanding the foregoing provisions of this Paragraph II, in no
            event shall the annual benefit payable to Executive in any Plan Year
            during the Payment Period (as defined below) be any less than
            $49,843.00 (the `Minimum Benefit'). For this purpose, the `Payment
            Period' shall begin with the Plan Year in which payment to the
            Executive commences under this Paragraph II and shall end with the
            Plan Year in which the Executive dies."

      This Amendment shall be effective on the date hereof. To the extent that
any term, provision, or paragraph of said agreement is not specifically amended
herein, or in any other amendment thereto, said term, provision, or paragraph
shall remain in full force and effect as set forth in said October 20, 1999
Agreement.

      IN WITNESS WHEREOF, the parties hereto acknowledge that each has carefully
read this Amendment and executed the original thereof on the first day as set
forth hereinabove, and that, upon execution, each has received a conforming
copy.

                                  GWINNETT BANKING COMPANY
                                  Lawrenceville, GA

          /s/ Beth R. Tynan       By:   /s/ John T. Hopkins III       EVP
------------------------------          ------------------------------------
Witness                                 Title

          /s/ Gail L. Manning           /s/ Paul C. Birkhead
------------------------------    ------------------------------------------
Witness                           Executive

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