Document:

<PAGE>
                                                                    EXHIBIT 4.27

                             PERFECTION CERTIFICATE

     The undersigned, JOHN PERRY, the SECRETARY of NORD RESOURCES CORPORATION, a
Delaware corporation (the "Company") hereby certifies to AURAMET TRADING, LLC
(the "Lender"), as follows:

1.   Name

     (a) The exact legal name of the Company as that name appears in its
organizational documents is as follows:

          (1) NORD RESOURCES CORPORATION

     (b) The following is a list of all other names (including trade names or
similar appellations) used by the Company, or any other business or organization
to which the Company became the successor by merger, consolidation, acquisition,
change in form, nature or jurisdiction of organization or otherwise, now or at
any time during the past five years and in the case of any such business or
organization, any chief executive office or other principal place of address
used thereby during such period to the extent know to the Company:

          (1)  NORD COPPER CORPORATION - P.O. BOX 384 DRAGOON, AZ 85609

          (2)  COCHISE AGGREGATES & MATERIALS - P.O. BOX 384 DRAGOON, AZ 85609

     (c) The following is the Company's federal employer identification number:

          (1)  85-0212139

     (d) The following is the Company's state-issued identification number, if
any:

          (1)  0769561

2.   Current Locations

     (a) The following is the jurisdiction of organization of the Company:

          DELAWARE

     (b) The chief executive office of the Company is located at the following
address:

          3048 N. SEVEN DASH RD., P.O. BOX 384, DRAGOON, AZ 85609

<PAGE>

     (c) The following are all other locations in which the Company maintains
any books or records relating to any accounts, contract rights, chattel paper,
general intangibles or mobile goods:

          (i) in the United States of America:

               NONE

          (ii) outside the United States of America:

               NONE

     (d) The following are all other places of business of the Company:

          (i) in the United States of America:

               NONE

          (ii) outside the United States of America:

               NONE

     (e) The following are all other locations where any inventory or equipment
of the Company is located:

          (i) in the United States of America:

               NONE

          (ii) outside the United States of America:

               NONE

     (f) The following are the names and addresses of all persons or entities
other than the Company such as lessees, consignees, warehousemen or purchasers
of chattel paper, which have possession or are intended to have possession of
any of the Collateral consisting of chattel paper, inventory or equipment:

SANTA BARBARA BANK & TRUST   MCGUIRE MACHINERY INC.
P.O. BOX 60607               P.O. BOX 1246
SANTA BARBARA, CA 93117      GRAYSON, KY 71143-1246

3.   Prior Locations

     (a) Set forth below is each location or place of business previously (but
not currently) maintained by the Company or at which books or records were
previously (but not currently)

                                       2

<PAGE>

maintained with respect to the items describe in Section 2(c) above at any time
during the past four months:

     NONE

     (b) The Company has___ has not _X__ changed its jurisdiction of
organization or chief executive office at any time during the past four months
(if "has" is checked, please set forth the prior jurisdiction of organization or
location of chief executive office below):

     (c) Set forth below is information required by subparagraphs (e) and (f) of
Section 2 with respect to each other location at which, or other person or
entity with which, any inventory or equipment of the Company has been previously
(but not currently) held at any time during the past four months:

     NONE.

4.   Real Estate Fixtures

Set forth below is a list of Collateral consisting of fixture(s) and a
description of each parcel of real property on which any said fixture(s) of the
Company are or are to be located and the name and address of each real estate
recording office where a mortgage on the real estate on which such fixture(s)
are or are to be located would be recorded and the name and address of the
record owner, if not the Company. A summary list of which of such properties are
owned and which are leased by the Company is set forth below:

     (a)  Owned property:

          PROPERTY FIXTURES TO INCLUDE ALL BUILDINGS OF SOLVENT EXTRACTION AND
          ELECTOWINNING, POWER SUBSTATION, PUMP STATIONS, OFFICE AND MAINTENANCE
          BUILDINGS ETC. LOCATED ON US PATENT # 02-63-0060 AS RECORDED IN THE
          RECORDS OF THE OFFICE OF THE COCHISE COUNT RECORDER BOOK 315 PAGE 561
          INCLUDING PORTIONS OF SECTIONS 25, 26 AND 35 TOWNSHIP 15 RANGE 22 E
          G&SRB&M IN THE COCHISE MINING DISTRICT.

     (b)  Leased property:

          (1)  NEW MEXICO MINING LEASE FOR GENERAL MINING, LEASE NO. HG-0011,
               HG-0012, HG-0013, HG-0014, HG-0015, HG-0016, HG-0017, HG-0018.

          (2)  MINING LEASE AND UNPATENTED MINE CLAIMS AS LISTED IN DEED OF
               TRUST, ASSIGNMENT OF RENTS, SECURITY AGREEMENT AND FIXTURE FILING
               RECORDED IN THE COCHISE COUNTY CLERK AND RECORDERS OFFICE JUNE
               10, 1999 4:00 PM DOCUMENT NUMBER 990618420

                                       3

<PAGE>

          (3)  MINING LEASE AND PATENTED MINE CLAIMS IN AS LISTED IN DEED OF
               TRUST, ASSIGNMENT OF RENTS, SECURITY AGREEMENT AND FIXTURE FILING
               RECORDED IN THE COCHISE COUNTY CLERK AND RECORDERS OFFICE JUNE
               10, 1999 4:00 PM DOCUMENT NUMBER 990618420

          (4)  FEE LAND IN AS LISTED IN DEED OF TRUST, ASSIGNMENT OF RENTS,
               SECURITY AGREEMENT AND FIXTURE FILING RECORDED IN THE COCHISE
               COUNTY CLERK AND RECORDERS OFFICE JUNE 10, 1999 4:00 PM DOCUMENT
               NUMBER 990618420

          (5)  UNPATENTED MINING CLAIMS LOCATED IN TOWNSHIP 5 SOUTH RANGE 26
               EAST IN SECTIONS 17, 18, 19, 20 RECORDED IN THE BUREAU OF LAND
               MANAGEMENT CLAIM NUMBERS AMC359924 SEQUENTIALLY NUMBERED THROUGH
               AMC359978. RECORDED WITH THE BUREAU OF LAND MANAGEMENT ARIZONA
               OFFICE ON AUGUST 23, 2004

          (6)  STATE MINING LEASE NUMBERS 008-109145-00 AND 008-109146-00 AS
               RECORDED WITH THE BUREAU OF LAND MANAGEMENT ARIZONA OFFICE ON
               AUGUST 23, 2004.

5.   Real Property Owned or Leased

Set forth below is a list of all locations where the Company owns or leases real
property:

     (a) Owned property:

     PROPERTY FIXTURES TO INCLUDE ALL BUILDINGS OF SOLVENT EXTRACTION AND
     ELECTOWINNING, POWER SUBSTATION, PUMP STATIONS, OFFICE AND MAINTENANCE
     BUILDINGS ETC. LOCATED ON US PATENT # 02-63-0060 AS RECORDED IN THE RECORDS
     OF THE OFFICE OF THE COCHISE COUNT RECORDER BOOK 315 PAGE 561 INCLUDING
     PORTIONS OF SECTIONS 25, 26 AND 35 TOWNSHIP 15 RANGE 22 E G&SRB&M IN THE
     COCHISE MINING DISTRICT.

     (b) Leased property:

          (1)  NEW MEXICO MINING LEASE FOR GENERAL MINING, LEASE NO. HG-0011,
               HG-0012, HG-0013, HG-0014, HG-0015, HG-0016, HG-0017, HG-0018.

          (2)  MINING LEASE AND UNPATENTED MINE CLAIMS AS LISTED IN DEED OF
               TRUST, ASSIGNMENT OF RENTS, SECURITY AGREEMENT AND FIXTURE FILING
               RECORDED IN THE COCHISE COUNTY CLERK AND RECORDERS OFFICE JUNE
               10, 1999 4:00 PM DOCUMENT NUMBER 990618420

          (3)  MINING LEASE AND PATENTED MINE CLAIMS IN AS LISTED IN DEED OF
               TRUST, ASSIGNMENT OF RENTS, SECURITY AGREEMENT AND FIXTURE FILING
               RECORDED

                                       4

<PAGE>

               IN THE COCHISE COUNTY CLERK AND RECORDERS OFFICE JUNE 10, 1999
               4:00 PM DOCUMENT NUMBER 990618420

          (4)  FEE LAND IN AS LISTED IN DEED OF TRUST, ASSIGNMENT OF RENTS,
               SECURITY AGREEMENT AND FIXTURE FILING RECORDED IN THE COCHISE
               COUNTY CLERK AND RECORDERS OFFICE JUNE 10, 1999 4:00 PM DOCUMENT
               NUMBER 990618420

          (5)  UNPATENTED MINING CLAIMS LOCATED IN TOWNSHIP 5 SOUTH RANGE 26
               EAST IN SECTIONS 17, 18, 19, 20 RECORDED IN THE BUREAU OF LAND
               MANAGEMENT CLAIM NUMBERS AMC359924 SEQUENTIALLY NUMBERED THROUGH
               AMC359978. RECORDED WITH THE BUREAU OF LAND MANAGEMENT ARIZONA
               OFFICE ON AUGUST 23, 2004

          (6)  STATE MINING LEASE NUMBERS 008-109145-00 AND 008-109146-00 AS
               RECORDED WITH THE BUREAU OF LAND MANAGEMENT ARIZONA OFFICE ON
               AUGUST 23, 2004.

6.   Unusual Transactions

Except as set forth below, all of the property and assets of the Company pledged
to the Lender as Collateral has been originated by the Company in the ordinary
course of its business or consist of goods which have been acquired by the
Company in the ordinary course from a person in the business of selling goods of
that kind.

     NONE.

7.   Intellectual Property

Set forth below is a list of all United States and foreign patents, copyrights,
trademarks, trade names and service marks registered or for which applications
are pending in the name of the Company.

     NONE

8.   Deposit Accounts

Set forth below is a list of all bank accounts (including lockbox, securities
and commodities accounts) maintained by the Company (provide name and address of
depository bank, type of account and account number).

                                       5

<PAGE>

     COMPASS BANK - 7335 E. DOUBLE TREE RANCH RD. SCOTTSDALE, AZ 85258

     GENERAL OPERATING ACCOUNT   2500401373
     PAYROLL ACCOUNT             2500401268
     SAVINGS ACCOUNT             2500424829

     A.G. EDWARDS - 7630 N. ORACLE RD. TUCSON, AZ 85704

     SECURITIES ACCOUNT          82509046

9.   Investment Property

Set forth below is a list of (i) all stocks, bonds, debentures, notes and other
securities and investment property owned by the Company and (ii) all limited
liability company, partnership and limited partnership interests owned by the
Company (provide name of issuer, description of security or interest and value).

     (A) 5,097,561 SHARES OF ALLIED GOLD LIMITED

     (B) ONE "B" SHARE IN SRL ACQUISITION NO. 1 LIMITED (2.5% ROYALTY INTEREST)

10.  Litigation

Set forth below is a complete description of any lawsuits pending against the
Company, its subsidiaries or affiliates or any of its officers (provide brief
description of each claim).

     (A) ON DECEMBER 4, 2001, DEFAULT JUDGMENT WAS ENTERED AGAINST THE COMPANY
FOR FAILING TO APPEAR ON A COMPLAINT FILED BY ACCOUNTING SOLUTIONS HOLDING
COMPANY, INC. (ACCOUNTING SOLUTIONS) FOR THE AGGREGATE SUM OF $25,682.31,
INCLUSIVE OF PREJUDGMENT INTEREST AND ATTORNEYS FEES. THE COMPANY HAS NOT PAID
ANY AMOUNTS TOWARDS THIS JUDGMENT.

     (B) ON OR ABOUT DECEMBER 11, 2003, GREAT WEST LIFE & ANNUITY INSURANCE
COMPANY ("GREAT WEST") FILED A VERIFIED COMPLAINT (THE "COMPLAINT") AGAINST THE
COMPANY IN CASE NUMBER CV2003-024231, FILED IN THE SUPERIOR COURT OF ARIZONA,
COUNTY OF MARICOPA ALLEGING CAUSES OF ACTION FOR BREACH OF CONTRACT AND UNJUST
ENRICHMENT AND SEEKING TO RECOVER $107,606.09 IN ADDITION TO PREJUDGMENT
INTEREST, COSTS AND ATTORNEYS FEES. THE COMPLAINT ALLEGES THAT THE COMPANY
BREACHED A CONTRACT WITH GREAT WEST FOR THE ESTABLISHMENT AND MAINTENANCE OF THE
COMPANY'S EMPLOYEE HEALTH AND WELFARE BENEFIT PLANS BY FAILING TO PAY GREAT WEST
THE AMOUNTS OWING TO GREAT WEST UNDER THE CONTRACT. THE COMPANY HAS FILED A
CROSS-COMPLAINT AGAINST GREAT WEST FOR FAILING TO PAY THE CLAIMS MADE BY THE
COMPANY'S EMPLOYEES UNDER EMPLOYEE HEALTH AND WELFARE BENEFIT PLANS. LITIGATION
IS PENDING.

                                       6

<PAGE>

     (C) ON OCTOBER 31, 2001, A COMPLAINT WAS FILED AGAINST THE COMPANY BY
GALLAGHER & KENNEDY, P.A. ("GALLAGHER") IN THE SUPERIOR COURT OF ARIZONA, COUNTY
OF MARICOPA, ALLEGING CAUSES OF ACTION FOR BREACH OF CONTRACT, UNJUST
ENRICHMENT, AND QUANTUM MERUIT AND SEEKING TO RECOVER, IN ADDITION TO
PREJUDGMENT INTEREST AND ATTORNEYS FEES, TWENTY THOUSAND ONE HUNDRED AND FIFTY
SEVEN DOLLARS AND NINETY EIGHT CENTS ($20,157.98), THE BALANCE DUE IN EXCHANGE
FOR LEGAL SERVICES PROVIDED BY GALLAGHER TO THE COMPANY. ON MARCH 4, 2004,
COUNSEL FOR GALLAGHER FILED AN APPLICATION FOR ENTRY OF DEFAULT. TO THE BEST OF
THE COMPANY'S KNOWLEDGE, DEFAULT JUDGMENT WAS ENTERED AGAINST THE COMPANY FOR
THE AMOUNTS PRAYED FOR AND THE COMPANY EXPECTS TO NEGOTIATE A SETTLEMENT OF THIS
OBLIGATION.

11.  Commercial Tort Claims

Set forth below is a complete description of all existing commercial tort claims
held by the Company (provide brief description of each claim).

     NONE

12.  Letter of Credit Rights

Set forth below is a complete description of all existing letter of credit
rights (provide name or issuer and brief description).

     NONE

     IN WITNESS WHEREOF, I have hereunto signed this Certificate as of this 17th
day of October, 2005.

                                        NORD RESOURCES CORPORATION

                                        By: /s/ John Perry
                                            ------------------------------------
                                        Name: John Perry
                                        Title: Secretary

                                        7<PAGE>
                                                                    EXHIBIT 4.28

WHEN RECORDED, RETURN TO:

Fennemore Craig, P.C.
Attn: Sarah A. Strunk
3003 North Central Avenue
Suite 2600
Phoenix, AZ 85012-2913

                          BENEFICIARY'S DEED OF RELEASE
                                AND RECONVEYANCE

     WHEREAS, the undersigned is the Beneficiary under that certain Deed of
Trust, Assignment of Rents, Security Agreement and Fixture Filing dated as
October 17, 2005, executed by NORD RESOURCES CORPORATION, a Delaware
corporation, as Trustor, in favor of AURAMET TRADING, LLC, a Delaware limited
liability company, as Beneficiary and FIRST AMERICAN TITLE INSURANCE COMPANY, as
Trustee, recorded on October 18, 2005, at Fee No. 051039985, Official Records of
Cochise County, Arizona (the "Deed of Trust"); and

     WHEREAS, the indebtedness secured by the Deed of Trust has been fully paid.

     NOW, THEREFORE, for good and valuable consideration and pursuant to the
provisions of Arizona Revised Statutes Section 33-707.A. which makes it
unnecessary for the Trustee to join in this document, the undersigned hereby
releases and reconveys, without covenant or warranty, express or implied, unto
the parties legally entitled thereto, all right, title and interest which was
heretofore acquired by the undersigned or the Trustee under the Deed of Trust.

DATED: November 7, 2005

                                        BENEFICIARY:

                                        AURAMET TRADING, LLC

                                        /s/ Justin M. Sullivan
                                        ----------------------------------------
                                        By Justine M. Sullivan
                                        Its Chief Operating Officer

<PAGE>

STATE OF New Jersey   )
                      ) ss.
COUNTY OF  Bergen     )

     The foregoing was acknowledged before me this 7th day of November, 2005, by
Justin M. Sillivan, the Chief Operating Officer of Auramet Trading, LLC.

                                        /s/ Beth Anne Russo
                                        ----------------------------------------
                                        Notary Public

My Commission Expires:
May 25, 2009

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00096-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00096-of-00352.parquet"}]]