Document:

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                                                                   EXHIBIT 10.11

                       SUB-SURFACE WASTE MANAGEMENT, INC.
                              EMPLOYMENT AGREEMENT

THIS EMPLOYMENT AGREEMENT ("Agreement") is entered into effective December 23,
2002 (the "effective Date") by and between Behzad Mirzayi ("Employee") and
Sub-Surface Waste Management, Inc., a Delaware Corporation ("SSWMX").

WHEREAS, Employee has been employed as the Vice President of Sub-Surface Waste
Management, Inc.; a wholly owned subsidiary company of U.S. Microbics, Inc.
(USMX) and through such experience has acquired specials skills and abilities
and an extensive background in and knowledge of SSWMX's business and the
industry in which it is engaged;

WHEREAS, SSWMX desires to employ Employee, and Employee desires to remain in the
employ of SSWMX, on the terms and conditions set forth below;

NOW, THEREFORE, it is mutually agreed among the parties as follows:

                             SECTION 1. EMPLOYMENT.
                             ----------------------
1.1 POSITION AND DUTIES. Upon and subject to the conditions set forth herein,
during the Employment Term hereinafter defined, SSWMX hereby employs Employee as
SSWMX's Vice President and Chief Operating Officer. Employee shall be
responsible for such duties as are commensurate with such office and position as
may from time to time be designated by SSWMX's Board of Directors. Employee
shall report directly to the Board of Directors. Employee hereby accepts such
employment and, during the Employment Term, shall devote his skill, energy and
attention to the business of SSWMX, as may reasonably be required to fulfill his
duties in an efficient and productive manner. Employee shall perform his duties
in a diligent, trustworthy, loyal, and businesslike manner all for the purpose
of advancing the business of SSWMX.

                            SECTION 2. COMPENSATION.
                            ------------------------
2.1 SALARY. During the Employment Term, SSWMX shall pay to employee a minimum
annual salary as follows:

                  Year                               Salary

                  12/23/02 to 12/22/03               $145,000.00
                  12/23/03 to 12/22/04               $155,000.00
                  12/23/04 to 12/22/05               $165,000.00
                  12/23/05 to 12/22/06               $175,000.00
                  12/23/06 to 12/22/07               $195,000.00

Such salary shall be payable in bi-weekly installments.

2.2 BONUSES. In addition to the salary and other compensation specified in this
Agreement, Employee may from time to time receive a bonus from SSWMX as may be
earned by employee under a Incentive Stock Option Plan or other bonus plan or as

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may be authorized by SSWM's Board of Director's in order to more fully
compensate Employee for the true value of his services to SSWMX. In particular,
said bonus shall be in an amount of no less than five percent (5%) of the annual
net profit before taxes calculated prior to the inclusion of such bonus. Such
bonus shall be paid no later than 120 days after the end of the fiscal year and
may be paid in stock (valued on the day of issue at the bid price) or cash, at
determined by employee.

2.3 BUSINESS EXPENSES. SSWMX shall reimburse Employee for all reasonable,
ordinary and necessary business expenses incurred and paid by Employee in the
course of performing his duties for SSWMX pursuant to this Agreement and
consistent with SSWMX's policies in effect from time to time with respect to
travel, entertainment, and other business expenses, and subject to SSWMX's
requirements with respect to the manner of reporting such expenses. The
foregoing shall include reimbursement for business use of Employee's automobile
at the mileage rate in effect from time to time under federal income tax
regulations. Employee shall document all such business expenses by way of
expense reports and shall submit to SSWMX all such additional documentation as
may reasonably be required by SSWMX in order to establish the deductibility of
such expenses for tax purposes. Employee shall have the use of a SSWMX credit
card for payment of business expenses.

2.4 BENEFITS.

         (a) MEDICAL/DENTAL INSURANCE. During the Employment Term SSWMX shall
         pay the premium costs of covering Employee and his spouse and
         dependents under the present or future major medical, dental, and
         hospitalization plan of SSWMX and any other employee health and dental
         plans as may as may subsequently be put into effect from time to time
         by SSWMX during the Employment Term.

         (b) RETIREMENT PLANS. Employee shall be entitled to participate in all
         qualified retirement plans and similar plans for the benefit of
         employees which may be subsequently be adopted by SSWMX during the
         Employment Term, in accordance with the participation, eligibility,
         vesting and other provisions of such plans applicable to employees
         generally. The type of plan(s) and all the particulars thereof shall be
         determined by SSWMX's Board of Directors in its discretion.

         (c) MEDICAL/DENTAL REIMBURSEMENT. During the Employment Term, SSWMX
         shall reimburse Employee, up to a maximum of $20,000.00 per calendar
         year, for all costs and expenses incurred by Employee for medical care
         for himself, his spouse and dependents, to the extent not payable or
         reimbursable by or under medical/dental insurance. SSWMX shall adopt a
         written medical reimbursement plan if one is not already in effect,
         providing for the above benefits and setting forth such terms and
         procedures consistent with this Section as SSWMX's Board deems
         appropriate.

         (d) DISABILITY INSURANCE. Employee shall have disability insurance
         premiums paid by SSWMX at a level, which will provide employee with a
         salary of at least 75% of the salary that existed at SSWMX at the time
         of the disability and continuing until employee reaches age 70. The
         disability insurance policy shall be approved by employee as to terms
         and conditions. Employer agrees to provide this policy within 90 days
         after commencement of employment.

                                       2
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         (e) LIFE INSURANCE. SSWMX shall maintain in full force and effect at a
         level of coverage of $1,000,000.00 and pay all premiums on term
         insurance on the life of the Employee with a beneficiary to be
         determined by Employee. Employer may select the carrier and employee
         shall approve the terms and conditions of benefits. Employer agrees to
         provide this policy within 90 days after commencement of employment.

         (f) INDEMNIFICATION. The Company's Bylaws and the Delaware General
         Corporation Law provide for indemnification of directors and officers
         against certain liabilities. SSWMX hereby agrees to indemnify Employee
         against expenses, including legal fees, actually and reasonably
         incurred in connection with proceedings, whether civil or criminal,
         provided that it is determined that he acted in good faith, and, in any
         criminal matter, had reasonable cause to believe that his conduct was
         not unlawful.

         (g) OFFICER INSURANCE. SSWMX agrees to provide Officer's and Directors
         liability insurance, including errors and commission provisions, to
         cover Employee in carrying out his duties as President of SSWMX.

         (h) CAR ALLOWANCE. SSWMX agrees to provide a $1,000 per month car
         allowance to Employee during the term of this agreement. The allowance
         shall be paid at the beginning of each month with the first payment
         starting on the date of this agreement. The allowance shall be
         increased 10% annually on each successive twelve-month anniversary of
         this agreement.

         (i) TUITION REIMBURSEMENT. SSWMX agrees to reimburse Employee for
         tuition expenses up to $20,000 per year for job-related course
         expenses.

         (j) PAYROLL TAXES. Company shall pay withholding and company portion of
         all applicable federal, state and social security taxes on all payroll,
         stock options and preferred and common stock issued to Employee.

                        SECTION 3. TERM AND TERMINATION.
                        --------------------------------
3.1 EMPLOYMENT TERM. The Employment Term shall commence on the Effective Date
and, unless sooner terminated or canceled in accordance with this Agreement,
shall continue for a period of five (5) years thereafter. If no notice of
cancellation shall have been delivered by either SSWMX or Employee to the other
at least one hundred eighty (180) days prior to five years, this Agreement shall
automatically be extended upon all the terms and conditions hereof at the latest
salary level then in effect. Except that the following shall apply:

         (a) There shall be no fixed Employment Term;

         (b) This Agreement shall be cancelable at the will of either party by
         delivery of at least one hundred eighty (180) days advance written
         notice of cancellation to the other party;

3.2 TERMINATION. Notwithstanding the five year Employment Term, this Agreement
is subject to sooner termination as hereinafter provided.

                                       3
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         (a) TERMINATION DUE TO DEATH OF EMPLOYEE. This Agreement shall
         terminate upon the death of the Employee.

         (b) TERMINATION FOR REASONABLE CAUSE. SSWMX may terminate this
         Agreement immediately upon written notice to Employee in the event of
         (i) the willful breach of any agreement or covenant set forth herein;
         or (ii) Employee's habitual neglect of his duties hereunder.

         (c) TERMINATION IN EVENT OF PERMANENT DISABILITY. In the event that
         Employee should, in the opinion of a physician duly licensed in
         California, become unable, due to mental and/or physical disability,
         for a period of three hundred sixty-five (365) days to substantially
         perform the duties regularly performed by Employee for SSWMX hereunder,
         SSWMX shall have the right to terminate this Agreement at its sole
         election upon SSWMX's giving at least one hundred eighty (180) days
         written notice of its intention to so terminate to Employee or his
         conservator or other legal representative. Any time counted as
         disability time shall also be counted as time worked and all other
         benefits, salary and stock conversion rights shall continue during the
         disability period.

         (d) TERMINATION BY EMPLOYEE. Notwithstanding any of the foregoing or
         any other provisions of this Agreement, Employee shall have the right
         to terminate this Agreement for any reason upon thirty (30) days
         written notice to SSWMX. Employee shall similarly have the right to
         terminate this Agreement immediately upon written notice to SSWMX in
         the event that SSWMX should commit any willful or material breach of
         any of its obligations, representations or warranties under this
         Agreement.

         (e) PAYMENT UPON CHANGE IN OWNERSHIP. If the ownership or control of
         SSWMX shall change as a result of merger, acquisition, asset purchase,
         takeover or otherwise, employee shall be entitled to one hundred
         percent (100%) of the balance of payments due under this agreement
         which shall be paid in one lump sum within 30 days of the change in
         control or ownership. Such termination payment shall be made a
         condition of the completion of any merger, acquisition, asset purchase,
         takeover or otherwise.

         (f) PAYMENT UPON TERMINATION. IF SSWMX desires to terminate this
         agreement for any reason, other than described in paragraph 3.2(b) or
         (c) above, then employee shall be entitled to one hundred percent
         (100%) of the balance of payments due under this contract payable, at
         SSWMX's option, either on a bi-weekly basis or in a lump sum discounted
         by ten percent (10%) and payable within 30 days after said termination.
         Such payment shall be contingent upon employee entering into, and
         complying with a one-year non-compete agreement, which shall include
         language that employee shall not:

                  (1) Compete with SSWMX in the conduct of its business as a
                  manufacturer or seller of products or services similar to
                  those offered by SSWMX, unless licensed by SSWMX or its
                  subsidiaries, or

                                       4
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                  (2) Engage or participate, directly or indirectly, in any
                  business or businesses substantially similar to any business
                  conducted by SSWMX at any time within one year after
                  termination unless employee has received Board of Director
                  approval to engage in such business(es).

                  (3) Solicit or cause to be solicited for the benefit of
                  Employee or any third party any customers or employees of
                  SSWMX unless employee has received Board of Director approval
                  to engage in such business(es).

Notwithstanding anything to the contrary set forth in this Agreement, Employee's
obligations and covenants set forth in Sections 4 and 5 hereof shall survive the
termination of the Employment Term and/or this Agreement.

         (g) EXERCISE OF STOCK OPTIONS AFTER TERMINATION. Employee shall be
         entitled to exercise any stock options (granted prior to the
         termination date) under the terms of said options. SSWMX shall not have
         the right to cancel any stock options, due to termination, which were
         granted to Employee prior to termination.

                 SECTION 4. PROPRIETARY RIGHTS AND COMPETITION.
                 ----------------------------------------------
4.1 BUSINESS PROPERTIES. Other than as required to perform his duties in
accordance with this Agreement and for purposes of furthering the business of
SSWMX, Employee shall not use or cause to be used, for personal gain, any
customer lists, underwriter names, financial sources, trade secrets or other
confidential business information obtained by him as a result of his employment
by or relationship with SSWMX.

4.2 REVEALING OF TRADE SECRETS, ETC. Employee acknowledges the interest of SSWMX
in maintaining the confidentiality of information related to its business and
shall not at any time during the Employment Term or thereafter, directly or
indirectly, use in competition with SSWMX, or reveal or cause to be revealed to
any person or entity, the production processes, inventions, formulae, trade
secrets, customer lists, sales data, or other confidential business information
obtained by him as a result of his employment relationship with SSWMX; provided,
however, that the parties acknowledge that it is not the intent of this Section
to include within its subject matter information which is not proprietary to
SSWMX, which was known by Employee prior to commence of employment, or which is
in the public domain.

4.3 NON-COMPETITION DURING EMPLOYMENT. While Employee remains in the employ of
SSWMX, Employee shall not:

         (a) Compete with SSWMX in the conduct of its business as a manufacturer
         or seller of products or services similar to those offered by SSWMX, or

         (b) Engage or participate, directly or indirectly, in any business or
         businesses substantially similar to any business conducted by SSWMX at
         any time during such period of employment unless such business(es)
         existed at the time of employment commencement and employee is the
         owner or major stockholder of such business(es) or employee has
         received Board of Director approval to engage in such business(es).

         (c) Solicit or cause to be solicited for the benefit of Employee or any
         third party any customers of SSWMX unless employee has received Board
         of Director approval to solicit such customers.

                                       5
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4.4 RECRUITING OF EMPLOYEES. At no time during the Employment Term shall
Employee recruit or cause any other person to solicit or recruit any employee of
SSWMX for the benefit of any business similar to or competitive with any
business carried on by SSWMX during the period of the Employee's employment with
SSWMX.

                  SECTION 5. APPOINTMENT TO BOARD OF DIRECTORS
                  --------------------------------------------
5.1 APPOINTMENT. Without further consideration Employee shall be appointed to
the Board of Directors and shall continue to be a member of the Board during the
term of this Agreement.

                       SECTION 6. VACATIONS AND HOLIDAYS.
                       ----------------------------------
Employee shall be entitled to vacations and holidays without reduction in
his/her base compensation in accordance with the policies established from time
to time by SSWMX's Board of Directors. Employee shall also be entitled to
observe regular holidays observed by SSWMX's employees generally.

                            SECTION 7. MISCELLANEOUS.
                            -------------------------
7.1 NOTICES. Any notices required to be given to any party hereunder shall be in
writing and shall be deemed given upon actual delivery in the case of personal
delivery, or three (3) business days after deposit in the U.S. mail, first class
postage and certified fees prepaid, in either case addressed to the party to be
notified at its address as such party may have specified in a written notice to
the other party given in accordance with this section.

7.2 ASSIGNMENT, BINDING EFFECT. SSWMX may assign its rights and delegate its
obligations under this Agreement to any affiliated entity or to any person or
entity which acquires ownership or control of the assets or stock of SSWMX by
sale, merger, reorganization or otherwise. Except as hereinabove provided,
neither of the parties hereto may assign any rights or delegate any obligations
under this Agreement without the written consent of the other party. Subject to
the foregoing, this Agreement shall inure to the benefit of and be binding upon
the parties and their respective successors and assigns.

7.3 MODIFICATIONS. This Agreement may be modified only by a writing signed by
both parties.

7.4 GOVERNING LAW. This Agreement shall be interpreted under and governed by the
laws of the State of California.

7.5 NON-WAIVER. No covenant or condition of this Agreement can be waived except
by the written consent of the waiving party. Forbearance or indulgence by either
party in any regard whatsoever or failure to take action on account of any
default by either party will not constitute a waiver of the covenant or
condition to be performed; and, until complete performance of such covenant or
condition, the non-defaulting party will be entitled to invoke any remedy
available to it under this Agreement or by law or in equity despite said
forbearance or indulgence.

7.6 ATTORNEY'S FEES. If any litigation is commenced between the parties
concerning any provisions of this Agreement, or the rights and duties of any
person in relation to this Agreement, the party or parties prevailing in such
litigation shall be entitled, in addition to such other relief that is granted,
to a reasonable sum as and for its attorneys' fees in such action which are
determined by the court in such action or in a separate action brought for that
purpose.

                                       6
<PAGE>

7.7 ENTIRE AGREEMENT. This Agreement contains the sole and entire agreement of
the parties hereto as of the date hereof with respect to the subject matter of
this Agreement, and supersedes and replaces in full any and all other prior or
contemporaneous written and/or oral agreements, representations and
understandings of or between the parties concerning the subject matter.

7.8 SEVERABILITY. In case this Agreement, or any one or more of the provisions
hereof, are held to be invalid, illegal or unenforceable within any governmental
jurisdiction, neither this Agreement nor any provision shall as a consequence
thereof be deemed to be invalid, illegal or unenforceable within any other
jurisdiction. In case any one or more of the provisions hereof shall for any
reason be held to be invalid, illegal or unenforceable in any respect, such
invalidity, illegality or unenforceable shall not effect any other provision of
this Agreement, and this Agreement shall be construed as if the invalid, illegal
or unenforceable provision had never been contained herein, and there shall be
deemed substituted such other provision as will most nearly accomplish the
intent of the parties to the extent permitted by applicable law.

7.9 COUNTERPARTS. This Agreement may be executed in counterparts, each of which
shall be deemed an original as against the party or parties who signed it, but
all of which together constitutes a single agreement.

7.10 HEADINGS. The captions set forth in this Agreement are for convenience only
and shall not be considered as part of this Agreement or as in any way limiting
or amplifying the terms and provisions hereof.

7.11 NO RIGHTS IN THIRD PARTIES. Nothing herein expressed or implied is intended
to or shall be construed to confer upon or give to any person, firm or other
entity, other than the parties hereof and their respective successors and
assigns or personal representatives, any rights or remedies under or by reason
of this Agreement.

7.12 CERTAIN DEFINITIONS. For purposes of this Agreement, the following terms
shall have the following meanings:
         (a) "Engage or participant in any business" referred to in section 4.3
         shall be deemed to mean engaging or participating in any business or
         businesses, whether for Employee's own account or for that of any other
         person, firm or corporation, and whether as a stockholder (except as a
         stockholder in a publicly-held corporation with more than 500 holders
         of common stock of which Employee owns less than 1% of the outstanding
         securities of any class), principal, agent, proprietor, partner,
         officer, director, employee, consultant, or contractor, or in any other
         capacity.

7.13 REMEDIES. The parties acknowledge that any breach, violation or evasion by
Employee of the terms of this Agreement will result in immediate and irreparable
injury and harm to SSWMX, and will cause damage to SSWMX in amounts difficult to
ascertain. Accordingly, SSWMX shall be entitled to the remedies of injunction
and specific performance, or either of such remedies, as well as to all other
legal or equitable remedies to which SSWMX may be entitled, including, without

                                       7
<PAGE>

limitation, termination of the Employment Term and this Agreement. Any breach,
violation or evasion by SSWMX of the terms of this Agreement will result in
immediate and irreparable injury to Employee, and shall entitle him to all legal
or equitable remedies to which he may be entitled.

IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement with an Effective Date of November 25, 2002.

SSWM, Inc.                                         Employee: Behzad Mirzayi
5922-B Farnsworth Court                            8228 South Jackson Street
Carlsbad, CA 92008                                 Littleton, CO 80122

BY: /S/ BRUCE S. BEATTIE                                /S/ BEHZAD MIRZAYI
    --------------------------------               -----------------------------
    Bruce S. Beattie, President, CEO               Behzad Mirzayi

BY: /S/ ROBERT C. BREHM
    --------------------------
    Robert C. Brehm, Director, Secretary

                                       8<PAGE>

                                                                   EXHIBIT 10.55

                                   ADDENDUM TO
                            STOCK PURCHASE AGREEMENT

         This ADDENDUM TO STOCK PURCHASE AGREEMENT (this "Agreement"), dated
September 24, 2004, is made by and among Allis-Chalmers Corporation, a Delaware
corporation (the "Company"), and the signatories hereto (the "Investors").

                                    RECITALS

         WHEREAS, the Company and certain investors (the "August Investors")
executed and delivered to each other a Stock Purchase Agreement dated August 10,
2004, as amended by an Amendment to Stock Purchase Agreement dated August 10,
2004, and a Letter regarding Stock Purchase Agreement dated August 5, 2004
(collectively, the "August Stock Purchase Agreement");

         WHEREAS, the Company has agreed to issue and sell shares of its Common
Stock to the investors signatory hereto (the "Investors"), on the terms set
forth in the August Stock Purchase Agreement as modified hereby;

         WHEREAS, the Company has delivered to the Investors a Private Placement
Memorandum dated July 13, 2004 (the "Private Placement Memorandum), describing
the business of the Company, and a copy of a Registration Statement on Form S-1
filed with the Securities and Exchange Commission on September 10, 2004 (the
"Registration Statement");

                                    AGREEMENT

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
set forth herein and for other good and valuable consideration, the receipt and
adequacy of which are hereby acknowledged, the parties hereto agree as follows
(capitalized terms used but not defined herein shall have the meanings ascribed
to such terms in the August Stock Purchase Agreement):

                  1. PURCHASE AND SALE OF STOCK. Subject to the terms and
conditions of the August Stock Purchase Agreement, which terms and conditions
are incorporated herein by reference, as modified by this Agreement, the Company
will issue and sell to each Investor, and each Investor severally agrees to
purchase from the Company, the number of shares of the Company's authorized but
unissued Common Stock (the "Shares") set forth with respect to such Investor on
Schedule 1.1 hereto, at a price per share equal to $3.00. The closing (the
"Closing") of the sale of the Shares shall be effected at the offices of the
Company on or prior to the third business day following satisfaction in full of
all of the closing conditions set forth in Section 4 and 5 of the August Stock
Purchase Agreement, or waiver of any such conditions pursuant to the terms
thereof, or at such other time and place as may be agreed to by a Majority of
the Investors and the Company (the "Closing Date"). At the Closing, subject to
the terms and conditions hereof, the Company shall issue to the Investors
certificates representing the Shares purchased by such Investor from the
Company, against payment of the full amount of such Investor's aggregate
purchase price by wire transfer of immediately available funds to the Company's
bank account. The Company's obligation to sell shares to the Investors shall be
deemed to be a separate agreement from the August Stock Purchase Agreement and
shall be deemed made on and as of the date hereof.

<PAGE>

                  2. DISCLOSURES. Attached hereto are current disclosure
schedules corresponding to Section 2 of the August Stock Purchase Agreement. The
Investors acknowledge that the Private Placement Memorandum and the August Stock
Purchase Agreement speak only as of the respective dates of each thereof, and
that such documents shall be deemed to be, and are hereby, modified to reflect
(a) that the Company is no longer pursuing the acquisition designated as
"Company "F" in the Private Placement Memorandum, (b) the disclosures set forth
in the Registration Statement, and (c) the press release released on September
23, 2004, relating to the acquisition of Safco-Oil Field Products, Inc. The
Company represents that except for the acquisition of Safco-Oil Field Products,
Inc., there has been no material change in its business since the date of the
Registration Statement. Subject to the foregoing, the representations and
warranties set forth in the August Stock Purchase Agreement are true and correct
as of the date hereof.

                  3. BOARD APPROVAL. The Investors acknowledge that consummation
of the transactions contemplated hereby is subject to the approval of the Board
of Directors of the Company, currently contemplated to be obtained on September
28, 2004.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed and delivered by their respective representatives hereunto duly
authorized as of the date first above written.

By:
Allis-Chalmers Corporation,                   TRANSCONTINENTAL CAPITAL CORP.
a Delaware corporation

                                              /S/ RONALD GONZALEZ-BUNSTER
                                              ------------------------------
/S/ MUNAWAR H. HIDAYATALLAH                   Signature
------------------------------
Munawar H. Hidayatallah,                      RONALD GONZALEZ-BUNSTER
Chief Executive Officer                       ------------------------------
7660 Woodway, Suite 200                       Name
Houston, Texas  77063
                                              President/CEO
                                              ------------------------------
                                              Title

                                       2
<PAGE>

                           [SIGNATURE PAGE CONTINUED]

                                      MILTON H. DRESNER REVOCABLE LIVING TRUST

                                      /S/ MILTON H. DRESNER
                                      ----------------------------------------
                                      Signature

                                      MILTON H. DRESNER
                                      ----------------------------------------
                                      Name

                                      JOSEPH S. DRESNER

                                      /S/ JOSEPH S. DRESNER
                                      ----------------------------------------
                                      Signature

                                      JOSEPH S. DRESNER
                                      ----------------------------------------
                                      Name

                                      J. STEVEN EMERSON ROTH IRA

                                      /S/ J. STEVEN EMERSON
                                      ----------------------------------------
                                      Signature

                                      J. STEVEN EMERSON
                                      ----------------------------------------
                                      Name

                                      Sole beneficiary, self-directed IRA
                                      ----------------------------------------
                                      Title

                                       3
<PAGE>

                           [SIGNATURE PAGE CONTINUED]

                                    WAVERLY LIMITED PARTNERSHIP

                                    /S/ J. GRAHAM R. SMITH
                                    ------------------------------------------
                                    Signature

                                    GRAHAM R. SMITH
                                    ------------------------------------------
                                    Name

                                    Managing General Partner
                                    ------------------------------------------
                                    Title

                                    THE SCHMIEDING FOUNDATION, INC.

                                    /S/ L.H. SCHMIEDING
                                    ------------------------------------------
                                    Signature

                                    L.H. SCHMIEDING
                                    ------------------------------------------
                                    Name

                                    Chief Executive Officer
                                    ------------------------------------------
                                    Title

                                    ROSEBURY, L.P.

                                    /S/ ANTHONY R. DANAHER
                                    ------------------------------------------
                                    Signature

                                    ANTHONY R. DANAHER
                                    ------------------------------------------
                                    Name

                                    President of Guild Investment Management,
                                    Inc., General Partner
                                    ------------------------------------------
                                    Title

                                       4
<PAGE>

                           [SIGNATURE PAGE CONTINUED]

                                    METEORIC, L.P.

                                    /S/ ANTHONY R. DANAHER
                                    ------------------------------------------
                                    Signature

                                    ANTHONY R. DANAHER
                                    ------------------------------------------
                                    Name

                                    President of Guild Investment Management,
                                    Inc., General Partner
                                    ------------------------------------------
                                    Title

                                    BARBARA C. CRANE

                                    /S/ BARBARA C. CRANE
                                    ------------------------------------------
                                    Signature

                                    BARBARA C. CRANE
                                    ------------------------------------------
                                    Name

                                    BRISTOL INVESTMENT FUND, LTD.

                                    /S/ PAUL KESSLER
                                    ------------------------------------------
                                    Signature

                                    PAUL KESSLER
                                    ------------------------------------------
                                    Name

                                    Director
                                    ------------------------------------------
                                    Title

                                       5
<PAGE>

                           [SIGNATURE PAGE CONTINUED]

                                    MEADOWBROOK OPPORTUNITY FUND LLC

                                    /S/ MICHAEL RAGINS
                                    ------------------------------------------
                                    Signature

                                    MICHAEL RAGINS
                                    ------------------------------------------
                                    Name

                                    Manager
                                    ------------------------------------------
                                    Title

                                    KENNETH MALKES

                                    /S/ KENNETH MALKES
                                    ------------------------------------------
                                    Signature

                                    KENNETH MALKES
                                    ------------------------------------------
                                    Name

                                       6

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