Document:

<PAGE>
                                                                   EXHIBIT 10.10

                         PEIFER, HANSON & MULLINS, P.A.
                         ATTORNEYS AND COUNSELORS AT LAW
                            20 FIRST PLAZA, SUITE 725
                              POST OFFICE BOX 25245
                       ALBUQUERQUE, NEW MEXICO 87125-5245
                                 (505) 247-4800

CHARLES R. PEIFER                                                JANE B. WISINER
ROBERT E. HANSON                                                      OF COUNSEL
CERIANNE L. MULLINS
CHRISTOPHER T. SAUGEDO                                                 FACSIMILE
LAUREN KEEFE                                                      (505) 243-6458

                                January 29, 2004

BY FIRST CLASS MAIL AND EMAIL (eanderson@nordresources.com)

Mr. Erland "Andy" Anderson
President
Nord Resources Corporation
9947 North Calle Solano
Tucson, Arizona 85737

     Re: Outstanding Balance

Dear Mr. Anderson:

     This letter will reflect our agreement to accept payment in full of our
outstanding receivable from Nord Resources in the form of shares of Nord
Resources ("Nord"). We have agreed with Mr. Hirsch that each dollar of debt will
be exchanged for one share of the Company's common stock. We have further agreed
to a "most favourable nation" provision pursuant to which, if the Company offers
or has offered to any other creditor a more favourable exchange rate for
outstanding debt, we will be entitled to use that more favourable ratio in
calculating the number of shares to which our firm is entitled. The current
amount owed to our firm, according to our records, is $239,462.74. If you
require confirmation of that amount, please let me know.

     As you will note, the name of our firm has changed from "Browning & Peifer,
P.A." to "Peifer, Hanson & Mullins, P.A." effective August 2003. We are still
the same corporation; we were required to change the name when Jim Browning
became a federal judge. Please use the new firm name in issuing the shares.

     We appreciate Nord's willingness to work with us to provide a means of
satisfying our outstanding receivable with the corporation. If you require any
additional information to

<PAGE>

                                       -2-

complete the transaction, please feel free to contact our firm administrator,
Robyn Rohr, or my partner, Robert Hanson.

     If this letter accurately reflects our agreement, kindly sign below and
return a copy for our files.

     Best regards.

                                        Very truly yours,

                                        PEIFER, HANSON & MULLINS, P.A.

                                        /s/ Charles R. Peifer
                                        ----------------------------------------
                                        Charles R. Peifer

CRP/lmc

AGREED ON BEHALF OF NORD RESOURCES CORPORATION

By: /s/ Erland Anderson
    ---------------------------------
    Erland "Andy" Anderson
    President

cc: Mr. Ron Hirsch (email: rhirsch@nordresources.com)

<PAGE>

                                       -3-

                           NORD RESOURCES CORPORATION

                            DEBT CONVERSION AGREEMENT

THIS DEBT CONVERSION AGREEMENT (the "Agreement") is entered into and made
effective as of the ____ day of February, 2004 (the "Effective Date"), by and
between PEIFER, HANSON & MULLINS, P.A., a professional association organized and
existing under the laws of the State of New Mexico (the "Investor"), and NORD
RESOURCES CORPOATION, a corporation organized and existing under the laws of the
State of Delaware (the "Company").

                                    RECITALS

     WHEREAS, the Investor is in the business of providing legal services for
compensation, and has its principal place of business in the City of
Albuquerque, County of Bernalillo, State of New Mexico; and

     WHEREAS, the Company has incurred indebtedness to the Investor in the
stated amount of Two Hundred Thirty Nine Thousand Four Hundred Sixty-Two Dollars
and Seventy-Four Centrs ($239,462.74) for legal services rendered prior to the
date hereof (the "Debt"); and

     WHEREAS, the Company has requested, and the Investor has agreed to accept
shares of restricted common stock from the Company in settlement and full
satisfaction of the Debt, subject to the terms and conditions set forth in this
Agreement.

                                    AGREEMENT

     NOW, THEREFORE, in consideration of the foregoing premises, and the mutual
promises and covenants contained in this Agreement, and for other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties, intending to be legally bound, hereby agree as
follows:

1. Company Obligations. Not less than five (5) days prior to the Effective Date
of this Agreement, the Company shall have filed with the New Mexico Securities
Division a notice of this contemplated transaction on Form 27-U, in accordance
with the provisions of Section 12.11.12.16 of the New Mexico Administrative
Code, and Section 58-13B-27(U) of the New Mexico Revised Statutes (the
"Applicable Securities Laws"). Promptly upon the execution of this Agreement,
the Company shall issue to the Investor a stock certificate evidencing the
Investor's ownership of 239,463 shares of its capital common stock (the
"Repayment Shares"), at an effective purchase price of One Dollar ($1.00) per
Repayment Share. The parties have further agreed that, in the event any shares
of common stock are sold by the Company to an investor in any similar debt
conversion transaction for less than the price of One Dollar ($1.00) per share
within twelve (12) months from the Effective Date, then the price of the
Repayment Shares shall be adjusted to reflect the lower purchase price through
the issuance of additional Repayment Shares to the Investor.

2. Investor Obligation. In consideration and payment in full for the issuance
and delivery of the Repayment Shares to the Investor in accordance with the
provisions of Section 1 above,

<PAGE>

                                       -4-

the Investor hereby agrees to release and discharge the Company and its
respective successors and assigns from any and all further liability in respect
of the Debt, except for the Company's performance as expressly required under
this Agreement.

3. Legends on Stock Certificates. Each certificate representing Repayment Shares
shall contain the following legends on the reverse of such certificate:

          THIS SECURITIES HAS NOT BEEN REGISTERED WITH THE SECURITIES AND
          EXCHANGE COMMISSION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
          "ACT"), OR ANY STATE SECURITIES DEPARTMENT, IN RELIANCE UPON THE
          EXEMPTION FROM REGISTRATION PROVIDED IN SECTION 4(2) OF THE ACT AND
          REGULATION D THEREUNDER. AS SUCH, THE PURCHASE OF THIS SECURITY WAS
          NECESSARILY WITH THE INTENT OF INVESTMENT AND NOT WITH A VIEW FOR
          DISTRIBUTION. THEREFORE, ANY SUBSEQUENT TRANSFER OF THIS SECURITY OR
          ANY INTEREST THEREIN WILL BE UNLAWFUL UNLESS IT IS REGISTERED UNDER
          THE ACT OR UNLESS AN EXEMPTION FROM REGISTRATION IS AVAILABLE.
          FURTHERMORE, IT IS UNLAWFUL TO CONSUMMATE A SALE OR TRANSFER OF THIS
          SECURITY, OR ANY INTEREST HEREIN, WITHOUT THE OPINION OF COUNSEL FOR
          THE COMPANY THAT THE PROPOSED TRANSFER OR SALE DOES NOT AFFECT THE
          EXEMPTIONS RELIED UPON BY THE COMPANY IN ORIGINALLY DISTRIBUTING THIS
          SECURITY.

          THIS SECURITY HAS NOT BEEN REGISTERED WITH THE NEW MEXICO SECURITIES
          DIVISION UNDER THE NEW MEXICO SECURITIES ACT, OR ANY OTHER LAW, AND
          MAY NOT BE RESOLD TO ANY PERSON UNLESS AND UNTIL SUCH REGISTRATION HAS
          OCCURRED OR PURSUANT TO AN EXEMPTION FROM REGISTRATION PERMITTED BY
          THE APPLICABLE SECURITIES LAWS AND REGULATIONS OF THE STATE OF NEW
          MEXICO.

4. Investor Representations. The Investor hereby represents and warrants to the
Company, as of the date hereof, the following:

     (a) the Investor is a professional association duly organized and validly
     existing under the laws of the State of New Mexico, and has full power and
     authority to enter into, execute and perform this Agreement, which
     Agreement, once executed by the Investor, shall be the valid and binding
     obligation of such party, enforceable against such party by any court of
     competent jurisdiction in accordance with its terms;

     (b) the individuals signing this Agreement on behalf of the Investor are
     the duly elected executive officers of the Investor, and have full power
     and authority to enter into and execute this Agreement for and on behalf of
     the Investor;

     (c) with respect to the Repayment Shares being acquired by the Investor:

          (i) the Investor is acquiring the Repayment Shares for its own
          account, and not with a view toward the subdivision, resale,
          distribution, or fractionalization thereof; the Investor has no
          contract, undertaking, or arrangement with any person to sell,
          transfer, or otherwise dispose of the Repayment Shares (or any portion
          thereof hereby subscribed for), and has no present intention to enter
          into any such contract, undertaking, agreement or arrangement;

<PAGE>

                                       -5-

          (ii) the subscription for Repayment Shares by the Investor hereunder
          is not the result of any form of general solicitation or general
          advertising;

          (iii) the Investor hereby acknowledges that: (A) the offering of the
          Repayment Shares was made only through direct, personal communication
          between the Investor and the Company; (B) the Investor has had full
          access to material concerning the Company's planned business and
          operations, which material was furnished or made available to the
          Investor by officers or representatives of the Company; (C) the
          Company has given the Investor the opportunity to ask any questions
          and obtain all additional information desired in order to verify or
          supplement the material so furnished; and (D) the Investor understands
          and acknowledges that the Repayment Shares re subject to substantial
          restrictions upon the transfer thereof, and that a purchaser of the
          Repayment Shares must be prepared to bear the economic risk of such
          investment for an indefinite period;

          (iv) the Investor understands that the Repayment Shares have not been
          registered under the Securities Act of 1933 (the "Act") or any state
          securities act (nor passed upon by the SEC or any state securities
          commission), and that the Repayment Shares may never be registered or
          qualified by the Investor under federal or state securities laws
          solely in reliance upon an available exemption from such registration
          or qualification, and hence such Repayment Shares cannot be sold
          unless they are subsequently so registered or qualified, or are
          otherwise subject to any applicable exemption from such registration
          requirements; and

          (v) the Investor further understands and acknowledges that (A) the
          Repayment Shares have not been registered with the New Mexico
          Securities Division under the New Mexico Securities Act, or any other
          law or regulation, (B) may not be resold to any person unless and
          until such registration has occurred or pursuant to an exemption from
          registration permitted by the applicable securities laws and
          regulations of the State of New Mexico; and (C) that there are
          substantial restrictions on transfer of the Repayment Shares, as set
          forth by legend on the reverse side of every certificate evidencing
          the ownership of the Repayment Shares;

     (d) the Investor is an "accredited investor" as such term is defined in
     Rule 501 of Regulation D promulgated by the Securities and Exchange
     Commission under the Act, or is a sophisticated investor meeting the
     minimum standards for an investment in an unregistered security under the
     Applicable Securities Laws; and

     (e) the Investor has been advised to consult with an attorney regarding
     legal matters concerning the purchase and ownership of the Repayment
     Shares, and with a tax advisor regarding the tax consequences of purchasing
     such Repayment Shares.

5. Miscellaneous Provisions.

<PAGE>

                                       -6-

     (a) Notices. All notices, requests, demands and other communications to be
     given hereunder shall be in writing and shall be deemed to have been duly
     given on the date of personal service or transmission by fax if such
     transmission is received during the normal business hours of the addressee,
     or on the first business day after sending the same by overnight courier
     service or by telegram, or on the third business day after mailing the same
     by first class mail, or on the day of receipt if sent by certified or
     registered mail, addressed as set forth below, or at such other address as
     any party may hereafter indicate by notice delivered as set forth in this
     Section 5(a):

     If to the Company:

          Nord Resources Corporation
          9947 North Calle Solano
          Tucson, AZ 85737
          Attn: Erland Anderson, President

     If to the Investor:

          Peifer, Hanson & Mullins, P.A.
          20 First Plaza, Suite 725
          Albuquerque, NM 87125
          Attn: Charles R. Peifer

     (b) Entire Agreement. This Agreement constitutes the entire and final
     agreement and understanding between the parties with respect to the subject
     matter hereof and the transactions contemplated hereby, and supersedes any
     and all prior oral or written agreements, statements, representations,
     warranties or understandings between the parties, all of which are merged
     herein and superseded hereby.

     (c) Counterparts; Facsimiles. This Agreement may be executed in one or more
     counterparts, each of which shall be deemed an original, but all of which
     together shall constitute one and the same instrument. Facsimiles of
     original signatures shall be deemed original signatures for all purposes.

     (d) Further Documents and Act. Each party agrees to execute such other and
     further documents and to perform such other and further acts as may be
     reasonably necessary to carry out the purposes and provisions of this
     Agreement.

     (e) Governing Law; Venue. This Agreement shall be governed by and construed
     in accordance with the internal laws of the State of Arizona applicable to
     contracts to be performed within that state, without giving effect to the
     law of conflicts of laws applied thereby. In the event either party shall
     be forced to bring any legal action to protect or defend its rights
     hereunder, then the prevailing party in such proceeding shall be entitled
     to reimbursement from the non-prevailing party of all fees, costs and other
     expenses (including, without limitation, the reasonable expenses of its
     attorneys) in bringing or defending against such action.

<PAGE>

                                       -7-

     (f) Severable Provisions. The provisions of this Agreement are severable,
     and if any one or more provisions is determined to be illegal, indefinite,
     invalid or otherwise unenforceable, in whole or in part, by any court of
     competent jurisdiction, then the remaining provisions of this Agreement and
     any partially unenforceable provisions to the extent enforceable in the
     pertinent jurisdiction, shall continue in full force and effect and shall
     be binding and enforceable on the parties.

                    [SIGNATURES APPEAR ON THE FOLLOWING PAGE]

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

THE COMPANY:

NORD RESOURCES CORPORATION:             ATTEST:

By:                                     By:
    ---------------------------------       ------------------------------------
    Erland Anderson                         Secretary
    President

THE INVESTOR:

PEIFER, HANSON & MULLINS, P.A.:         ATTEST:

By:                                     By:
    ---------------------------------       ------------------------------------
    Charles R. Peifer                       Secretary<PAGE>
                                                                   EXHIBIT 10.11

REX LOESBY, P.E.

                           6164 South Newport Street, Centennial, Colorado 80111
                                       Telephone: 303-771-9610 Fax: 303-771-9652
                                                          Email: RELoesby@cs.com

February 16, 2004

Mr. Andy Anderson
Nord Resources Corporation
9947 N. Calle Solano
Tucson, AX 85737

                 Fax Transmission: [1] 520-219-1877, Pages: "4"

Dear Andy:

Thank you for asking me to help in getting Nord Resources off and running again.
It will be great to work with you again.

This letter will outline the terms of the agreement we have. In return for my
consulting services acting as Director of Corporate Development for Nord for a
period of up to 4 months ending June 15, 2004, or until such time as corporate
funding in excess of $1 million is secured for Nord, Nord will issue 50,000
common shares to me. Pre-approved travel expenses are to be born by Nord.

Attached is a list of contacts I have with investment bankers and mutual fund
managers in Canada who might have an interest in Nord. I would be happy to make
initial contact or you and Ron are certainly free to call them as well.

Please call if you have questions or comments.

Regards,

/s/ Rex F. Loesby
-------------------------------------
Rex F. Loesby

                                        Agreed to this 16th day of February,
                                        2004 by

                                        /s/ Erland A. Anderson
                                        ----------------------------------------
                                        Erland A. Anderson, President
                                        Nord Resources Corporation

cc: Mr. Ron Hirsch

<PAGE>

                                       -2-

NRDS.PK: Historical Prices for NORD RESOURCES C - Yahoo! Finance     Page 1 of 1

PRICES

<TABLE>
<CAPTION>
Date        Open   High    Low   Close   Volume   Adj Close*
----        ----   ----    ---   -----   ------   ----------
<S>         <C>    <C>    <C>    <C>     <C>      <C>
13-Feb-04   0.39   0.39   0.39    0.39      0        0.39
12-Feb-04   0.40   0.40   0.40    0.40      0        0.40
11-Feb-04   0.37   0.37   0.37    0.37      0        0.37
10-Feb-04   0.40   0.40   0.40    0.40      0        0.40
9-Feb-04    0.40   0.40   0.40    0.40      0        0.40
6-Feb-04    0.40   0.40   0.40    0.40      0        0.40
5-Feb-04    0.35   0.35   0.35    0.35      0        0.35
4-Feb-04    0.35   0.35   0.35    0.35      0        0.35
3-Feb-04    0.30   0.30   0.30    0.30      0        0.30
2-Feb-04    0.29   0.29   0.29    0.29      0        0.29
30-Jan-04   0.31   0.31   0.31    0.31      0        0.31
</TABLE>

<PAGE>

                           NORD RESOURCES CORPORATION
                          PO BOX 384, DRAGOON, AZ 85609
                     TEL: (520) 586-2241 FAX: (520) 586-7020

October 8, 2004

Mr. Rex E. Loesby, P.E.
6164 S. Newport St.
Centennial, CO 80111

By email: reloesby@cs.com

Dear Rex:

This letter will outline the terms of your consulting services for Nord
Resources Corporation ("Nord").

You agree to provide consulting services to Nord acting as Director of Corporate
Development and/or Vice President, Corporate Development until such time as
corporate funding necessary to place Nord's Johnson Camp Mine into production is
secured by Nord or as at such time as this agreement is cancelled by Nord or
yourself. As payment, Nord will issue to you 12,500 of its common shares for
each full month of your consulting services with any partial month paid on a
pro-rata basis. This agreement may be cancelled at any time by either Nord or
yourself upon written notice. Pre-approved travel expenses are to be born by
Nord.

This agreement is made retroactive to June 17, 2004 to include your consulting
services since the expiration of a previous agreement between Nord and you dated
February 16, 2004.

Should you have any questions or require more information, I can be reached by
telephone at (520) 544-4893 or by fax at (520) 219-1877.

Regards.

/s/ Erland A. Anderson
-------------------------------------
Erland A. Anderson
President & COO

Agreed to this 8th day of October, 2004 by:

/s/ Rex E. Loesby
-------------------------------------
Rex E. Loesby, P.E.

cc:  R. Hirsch
     file

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