Document:

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                                                                   EXHIBIT 10.13

              CONFIDENTIAL TREATMENT REQUESTED FOR CERTAIN PORTIONS
** indicates that confidential information has been omitted and filed separately
           with the SEC in an application for confidential treatment.

                       MANUFACTURING AND SUPPLY AGREEMENT

THIS MANUFACTURING AND SUPPLY AGREEMENT (this "Agreement") is made and entered
into on the 20th day of December 2004, by and between:

PRECISION ENGINE PRODUCTS CORP., a corporation organized and existing under the
laws of the State of Delaware, U.S.A. and having its principal office at 2919
Commonwealth Boulevard, Tallahassee, FL 32303 U.S.A. (hereinafter referred to as
"PEPC")

And

EQUATORIAL ENTERPRISES LIMITED, a Public Limited company organized and existing
under the laws of the India and having its registered office at Equatorial
Forum, 14 Mumbai-Pune Road, Wakdewadi, Pune 411 003, INDIA (hereinafter referred
to as "Equatorial").

                                   BACKGROUND

1.       PEPC wishes to have the Products (as defined in Section 2.4)
         manufactured for it.

2.       Equatorial is a precision manufacturer and wishes to make the Products
         for ultimate sale to PEPC.

3.       Equatorial believes that is has, and PEPC has concluded that Equatorial
         has the necessary technical and managerial capability to perform as
         required by this Agreement.

                                   AGREEMENTS

The parties agree as follows:

1.       GENERAL

         As per the terms and conditions of this Agreement, Equatorial will
         manufacture the Products for sale to PEPC and PEPC will buy the
         Products from Equatorial.

2.       PRE-PRODUCTION OBLIGATIONS

         The parties will generally cooperate to advance the purpose of this
         Agreement, which is the manufacture and supply of the Products.

         2.1      Technical Information Sharing

                  a.       While Equatorial has, on its own, developed the
                           general technical know-how, skill, expertise and
                           capability required to manufacture the Products, the
                           exact dimensions and mechanical properties required
                           by PEPC for the Products will be provided to
                           Equatorial by PEPC in the form of drawings and other
                           relevant technical information to enable Equatorial
                           to make the Products to PEPC's specific requirements
                           and specifications. PEPC may also provide to
                           Equatorial specifications, designs, drawings and
                           other information related to the purchase,
                           manufacture, modification and/or installation of
                           tooling and equipment.

                  b.       All such information provided by PEPC shall be
                           considered Proprietary Information for purposes of
                           Section 4 and shall remain the property of PEPC and
                           may be used by Equatorial solely to make and sell
                           Products to PEPC, and not for any other purpose.
                           Without limiting the generality of the foregoing,
                           Equatorial shall not use such information provided by
                           PEPC, directly or

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                           indirectly, for the purpose of developing, designing,
                           making, processing, testing or supplying any product
                           to any party other than PEPC.

                  c.       It is, however, expressly agreed that the technical
                           know-how, skill, expertise and capability developed
                           by Equatorial without use of information provided by
                           PEPC or other PEPC Proprietary Information or
                           proprietary rights will remain Equatorial's property
                           and Equatorial is free to use the same as they deem
                           fit, subject to the express provisions of this
                           Agreement.

         2.2      Tooling Orders

                  PEPC will issue tooling and equipment Purchase Orders to
                  Equatorial pursuant to which certain tooling and equipment
                  necessary for the manufacture of the Products will be
                  purchased/made by Equatorial and paid for, in whole or in
                  part, by PEPC. Such tooling and equipment ("Contract Tooling
                  and Equipment") will be owned by PEPC. Equatorial will
                  maintain a complete and accurate inventory of all Contract
                  Tooling and Equipment. All Contract Tooling and Equipment
                  shall be marked "Owned by Stanadyne- PEPC" and shall be used
                  by Equatorial solely to manufacture Products exclusively for
                  PEPC, and may not be used to make product for any other person
                  or entity or for any other purpose. Equatorial shall not copy
                  or reproduce the Contract Tooling and Equipment unless
                  authorized by PEPC in writing. PEPC's ownership of Contract
                  Tooling and Equipment shall be perpetual and in no event shall
                  title or other rights to the same revert to Equatorial. Upon
                  any expiration or termination of this Agreement, all Contract
                  Tooling and Equipment shall immediately be returned to PEPC,
                  and for such purposes Equatorial shall make the Contract
                  Tooling and Equipment available to PEPC for shipment from
                  Equatorial's plant, and shall give PEPC and its agents access
                  to Equatorial's facility for purposes of disassembling and
                  packing the same. At PEPC's request, Equatorial shall give
                  such notices and make (or cooperate with PEPC in making) such
                  recording, filings or registrations as may be appropriate to
                  protect PEPC's interests in the Contract Tooling and
                  Equipment. Equatorial will maintain the Contract Tooling and
                  Equipment in good order and replace worn-out Contract Tooling
                  and Equipment at their expense. All replacement and substitute
                  equipment and tooling and all repair parts and components and
                  normal accessions, even though paid for by Equatorial, shall
                  be deemed part of Contract Tooling and Equipment and shall be
                  owned by PEPC and otherwise subject to the terms of this
                  Section. PEPC and Equatorial agree that the amount to be paid
                  by PEPC for the Contract Tooling and Equipment is ** (U.S.
                  Dollars) which will be paid in three installments as follows:
                  ** immediately after signing this Agreement; ** after
                  successful shipment of ** units of Product pursuant to a
                  purchase order already submitted to Equatorial; and the
                  balance of ** the items on the Product list referred to in
                  SCHEDULE 2.3 that are designated as the top ten priority items
                  have been produced and qualified. Amounts paid by PEPC to
                  Equatorial for Contract Tooling and Equipment are
                  non-refundable.

         2.3      Product Qualification.

                  Based on its prior review and discussions with Equatorial,
                  PEPC has concluded that Equatorial has developed the technical
                  know-how, skill, expertise and capability to manufacture the
                  Products in accordance with the requirements of this
                  Agreement. However, prior to commencement of commercial
                  production by Equatorial, PEPC and Equatorial will agree upon
                  the procedures and documentation to be followed by them to
                  qualify each item of Product for commercial production.
                  Equatorial will use diligent best efforts to achieve full
                  qualification and commercial production capacity with respect
                  to all Products by January 1, 2005.

         2.4      Product Definition

                  The products covered by this Agreement will consist of the **
                  listed in SCHEDULE 2.3 to this Agreement (the "Products").

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         2.5      Export Licensing

                  Prior to commercial production and supply of Products,
                  Equatorial shall obtain all export licenses and permits from
                  the applicable governmental authorities in India that are
                  necessary for the manufacture and export of the Products as
                  contemplated by this Agreement and shall otherwise comply with
                  all laws and regulations applicable to its activities under
                  this Agreement.

3.       COMMERICAL PRODUCTION AND SUPPY

         Once Equatorial and the Products have been qualified for commercial
         production, the following shall apply:

         3.1      Supply

                  PEPC will purchase the Products from Equatorial from time to
                  time pursuant to purchase orders to be submitted by PEPC to
                  Equatorial on PEPC's standard form. PEPC's standard terms and
                  conditions of purchase, a copy of which is attached to this
                  Agreement as SCHEDULE 3.1, shall apply to the purchase and
                  sale of Products under this Agreement, and any additional,
                  different or contrary terms and conditions set forth in any
                  purchase order, acknowledgment, invoice or other instrument or
                  document issued by Equatorial shall not apply unless agreed to
                  in writing by both parties. In the event of any inconsistency
                  between the terms of the main body of this Agreement and the
                  terms of SCHEDULE 3.1, the terms of the main body of this
                  Agreement shall prevail. Equatorial agrees to supply PEPC with
                  the Products in such quantities as are required by PEPC,
                  subject to mutually acceptable lead time requirements, agreed
                  minimum and maximum quantity limits and compliance by PEPC
                  with the requirements of Section 3.2(f).

         3.2      Prices, Shipment, Invoicing, Payment Terms

                  a.       The prices for the Products during the initial five
                           (5) year term of this Agreement shall be as set forth
                           in SCHEDULE 2.3. Product Prices are stated in and
                           shall be payable by PEPC in U.S. Dollars. In the
                           event that PEPC renews this Agreement for additional
                           one (1) year terms, PEPC and Equatorial will agree to
                           the prices of the Products for each renewal term. The
                           pricing calculation, which includes a "base price"
                           and "upcharge component" is set forth on SCHEDULE
                           2.3. The "base price" is fixed for the initial 5 year
                           term, and the "upcharge component" will be adjusted
                           from time to time by mutual determination of the
                           parties to reflect changes in raw material costs, all
                           as further illustrated on SCHEDULE 2.3.

                  b.       All Products will be shipped by marine
                           transportation. All shipment shall be made C.I.F.
                           (Incoterms 2000) the seaport of Jacksonville, Florida
                           or such other destination port as may be agreed by
                           PEPC and Equatorial. By way of confirmation, the
                           parties intend by the use of C.I.F. terms that:
                           Equatorial will deliver the goods to the seaport of
                           Jacksonville, Florida. Further to the same, all
                           carriage/freight and insurance to the port of
                           destination shall be Equatorial's responsibility;
                           however, charges related to the clearing and
                           forwarding, customs and taxes if any, and inland
                           transportation from the destination seaport to PEPC's
                           warehouse will be borne by PEPC.

                  c.       Equatorial is free to use any seaport from India to
                           transport the goods to PEPC. Equatorial will work
                           with the broker of PEPC's choice, who will coordinate
                           with Equatorial with respect to Product being loaded
                           on board at the India seaport and also will be PEPC's
                           broker in the U.S.A.

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                  d.       If PEPC desires the Product to be shipped by an
                           alternate mode of transportation and/or to an
                           alternate destination, the additional cost of doing
                           so shall be borne by PEPC.

                  e.       Product will be packaged according to mutually agreed
                           upon, sea-worthy packing specifications.

                  f.       PEPC will establish an irrevocable standby letter of
                           credit for a value of ** (U.S. Dollars) in favor of
                           Equatorial by a first class international bank.
                           However, payments for each shipment will be made by
                           PEPC by wire transfer into a designated account of
                           Equatorial upon receipt by PEPC of a copy of the
                           related bill of lading (no bill of lading shall be
                           presented to PEPC until the Product has been loaded
                           on the vessel at its departure port). Upon receipt of
                           payment, Equatorial will forward by courier service
                           the original bill of lading and related documents to
                           PEPC for the clearance of the Product. In case
                           payment is not made by PEPC within 45 days of receipt
                           of a copy of the bill of lading, Equatorial shall
                           have right to claim payment against the standby
                           letter of credit and upon receipt of payment by the
                           letter of credit bank will forward original documents
                           to PEPC.

                  g.       Title to all Product shall pass to PEPC when the
                           Product passes the ship's rail at the port of
                           departure from India.

         3.3      Manufacturing Standards and Quality

                  Equatorial shall provide and maintain a quality system for the
                  Products as agreed between PEPC and Equatorial. Such a quality
                  system shall be finalized before commencement of commercial
                  production of Products and Product shall not be qualified
                  until the related quality system is finalized and agreed upon
                  between the parties.

         3.4      Engineering Changes

                  Engineering changes in Product or process will not be
                  implemented without prior agreement between PEPC and
                  Equatorial. Where PEPC requires engineering changes, PEPC will
                  be responsible for the purchase of all scheduled production
                  completed or in process at the time of the change. Any price
                  changes necessitated due to such engineering changes will be
                  based solely on the cost differential of the design variance
                  from the original design version and will be agreed upon by
                  PEPC and Equatorial prior to incorporating such changes.

         3.5      Scheduling and Inventory Programs.

                  a.       PEPC will provide to Equatorial delivery schedules
                           for the Products, setting forth Product quantities
                           and shipment dates. Once each month, PEPC will
                           provide to Equatorial a monthly firm schedule
                           delivery release for the following 3 months, together
                           with monthly planning forecasts for months 4 through
                           6. PEPC's responsibility will be limited to the firm
                           schedule delivery releases for the upcoming 3 months.
                           Planning forecasts will create no commitment of PEPC
                           of any kind.

                  b.       Equatorial will maintain the agreed capacity in place
                           to meet the forecasted demand for Products. For
                           purposes of determining lead times and establishing
                           and maintaining capacity, the parties will assume
                           that PEPC will maintain an inventory of Product
                           sufficient in PEPC's estimation for approximately 45
                           days of its requirements.

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                  c.       Equatorial will cooperate with PEPC to attain PEPC
                           production, inventory, or scheduling objectives for
                           any PEPC developed "Just In Time" or other continuous
                           improvement program.

                  d.       Equatorial will commit adequate resources to support
                           PEPC`s peak demand of ** units of Product per year.
                           It is understood and agreed that production purchase
                           order releases will reflect actual demand from PEPC`s
                           end customer(s) and generally will be only a
                           percentage of peak demand. Production releases will
                           reflect the volume fluctuations experienced by PEPC's
                           end customer's(s') market place.

         3.6      Competitiveness.

                  Equatorial shall make every effort to offer competitive
                  advantage to PEPC in price, delivery and quality during the
                  term of this Agreement. PEPC shall make known to Equatorial
                  its expectations from time to time and will cooperate with and
                  assist Equatorial to meet these expectations. Both parties
                  shall cooperate and engage in regular dialogue on all three
                  issues of price, quality and delivery to ensure that the
                  competitive advantage is retained at all times. In the event
                  that PEPC believes that Equatorial has failed to offer
                  competitive advantage in price, delivery or quality and the
                  parties are not able to resolve the issues through mutual,
                  good faith deliberations, then either party may provide
                  formal, written notice to the other that the deliberations
                  have failed and may in such written notice elect to terminate
                  this Agreement effective 60 days after the date of such
                  written notice.

         3.7      Restrictive Covenant.

                  During the term of this Agreement, Equatorial and its
                  Affiliates (defined for purposes of this Agreement with
                  respect to either party as any entity or person controlling,
                  controlled by or under common control with such party) shall
                  not, directly or indirectly, supply ** that are competitive
                  with or that are substitutes for the Products to any person or
                  entity, anywhere in the world, other than to PEPC under this
                  Agreement and other than to the existing customers of
                  Equatorial who were on the list provided to PEPC by Equatorial
                  pursuant to Equatorial's letter dated December 13, 2004 to
                  PEPC, to whom Equatorial may supply ** on a continuing basis
                  consistent with prior practice and for the same, continuing
                  intended uses and purposes. During the term of this Agreement,
                  PEPC and its Affiliates (defined for purposes of this
                  Agreement as any entity or person controlling, controlled by
                  or under common control with PEPC) will comply with the terms
                  of that certain letter from PEPC to Equatorial dated December
                  10, 2004 with respect to the customer list provided to PEPC by
                  Equatorial, and such December 10, 2004 letter is incorporated
                  herein by reference. PEPC's breach of such December 10, 2004
                  letter shall be treated as a breach of this Agreement. During
                  the term of this Agreement, Equatorial shall not provide
                  financial, operating, engineering or other assistance of any
                  kind, and shall not grant licenses or similar rights to any
                  entity or person who engages in activities that would be
                  prohibited by this Section 3.7 if engaged in by Equatorial
                  directly.

4.       CONFIDENTIALITY AND PROPERIETARY RIGHTS

         4.1      Proprietary information.

                  a.       Each party agrees not to disclose or use any
                           materials or information of the other party which is
                           marked "Confidential" or, in the case of orally
                           conveyed information, which is confirmed as being
                           confidential in writing within thirty (30) days of
                           conveyance, including any such materials or
                           information conveyed prior to execution of this
                           Agreement ("Proprietary Information") except as may
                           be necessary to further the performance of this
                           Agreement. Each party further

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                           agrees to take such steps to maintain the
                           confidentiality of the other party's Proprietary
                           Information as it takes with respect to its own
                           similar information.

                  b.       The restrictions on disclosure set forth in this
                           Section 4.1 shall not apply to information which;

                           i.       is already in the public domain, and/or

                           ii.      later becomes publicly available through no
                                    fault of the party concerned, and/or

                           iii.     is disclosed to any party without
                                    restrictions by a third party which is not
                                    bound by any restrictions not to disclose
                                    such information, and/or

                           iv.      is independently developed without reliance
                                    on any information disclosed by the other
                                    party, as evidenced by written
                                    documentation, and/or

                           v.       a party is obligated to disclose under a
                                    court order, subject to such confidentiality
                                    orders, etc., as are available or obtainable
                                    under applicable law or regulation.

                  h.       All drawings, electronic files, pricing, sourcing,
                           contracts and tooling relating to the Products shall
                           be regarded as PEPC's Proprietary Information for
                           purposes of this Section 4.1 and PEPC shall be deemed
                           the owner of all such drawings, electronic files,
                           pricing, contracts and tooling relating to the
                           Products.

         4.2      Term of the Agreement

                  The parties agree that, except as required by law or court
                  order, and except for disclosure of this Agreement to a
                  party's advisors and to parties conducting bona fide due
                  diligence reviews of a party, they will not disclose any of
                  the terms or conditions of this Agreement to third parties,
                  except that this provision shall not preclude either party
                  from announcing the existence of this Agreement or from
                  providing a general summary of the intent and purpose of this
                  Agreement in the form of press releases, tombstone
                  advertisements and similar disclosures, provided that the
                  other party approves the form of the press release,
                  advertisement or similar disclosure. Such approval shall not
                  to be unreasonably withheld by either party.

         4.3      Survival

                  The provisions of this Section 4 shall survive the termination
                  or expiration of this Agreement.

5.       WARRANTIES, DISCLAIMER OF WARRANTIES, LIMITATION OF LIABILITIES.

         5.1      General Representations

                  Each party represents and warrants that it has full right,
                  power and authority to enter into this Agreement, to perform
                  all of its obligations hereunder, and to consummate all of the
                  transactions contemplated herein.

         5.2      Product Warranty

                  Equatorial warrants to PEPC that all Product supplied under
                  this Agreement shall (a) be new, of the grade and quality
                  specified, (b) conform to the specifications, drawings,
                  samples or descriptions furnished by PEPC, (c) be free from
                  defects in workmanship and material, and (d) be free and clear
                  of any security interest, lien or other claim of any third

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                  party. Equatorial will, at its own expense and option, either
                  repair or replace product, which does not comply with this
                  warranty. PEPC shall be entitled to credit for transportation
                  costs incurred by PEPC and its distributors and end customers
                  in connection with the return of defective Product. The
                  warranty period shall be 180 days from date of receipt of the
                  Product at PEPC's plant (initially, PEPC's plant in
                  Tallahassee, Florida).

         5.3      Disclaimer of Warranties.

                  Except for the warranties set forth herein, the parties hereto
                  disclaim all warranties of any kind, either express or
                  implied, including, but not limited to, all warranties of
                  merchantability and fitness for a particular purpose.

         5.4      Indemnity

                  Equatorial agrees to defend, indemnify and hold PEPC harmless
                  from and against any and all losses, costs, damages,
                  liabilities, penalties, fines expenses (including attorneys'
                  fees) administrative proceedings, claims (including those
                  based upon strict liability and those asserted by a
                  governmental entity) or suits (collectively referred to as
                  "Losses") which PEPC may incur or be subject to arising from
                  or relating, in any way, to (1) the breach of any warranty or
                  any inaccurate or erroneous representation of Equatorial set
                  out herein, (2) Equatorial's manufacture and sale of Product,
                  or (3) Equatorial's negligence, misconduct or breach of this
                  Agreement or of applicable law; provided that with respect to
                  Losses that arise exclusively from a specific item of Product,
                  only to the extent that the Losses or the underlying cause or
                  circumstances giving rise to such Losses exist or arise within
                  180 days from date of receipt of the Product at PEPC's plant
                  (initially, PEPC's plant in Tallahassee, Florida).

6.       TERM AND TERMINATION

         6.1      Term

                  The initial term of this Agreement shall be five (5) years,
                  and thereafter PEPC and Equatorial may renew this Agreement
                  for one or more additional, successive one (1) year renewal
                  terms by written, mutual agreement. Any such renewals shall
                  come into force at least sixty (60) days prior to the end of
                  the then effective initial or 1 year renewal term. This
                  Agreement may be terminated as provided in Section 6.2 of this
                  Agreement or by mutual agreement of the parties.

         6.2      Termination

                  This Agreement shall be terminable as provided in Section 3.6
                  and as follows:

                  a.       In the event Equatorial shall be in material breach
                           in the performance of any provision of this Agreement
                           ("Default") and if such Default shall not be cured
                           within thirty (30) days following written notice
                           thereof from PEPC (or if such Default is susceptible
                           to cure but cannot be cured within such 30 day cure
                           period, then if Equatorial has not promptly commenced
                           curing such Default within said thirty (30) day
                           notice period or does not thereafter proceed to cure
                           such Default with reasonable diligence and good faith
                           without interruption except for causes beyond its
                           control), then upon the expiration of said thirty
                           (30) day period (or at such time as Equatorial ceases
                           efforts to cure the Default or cure becomes no longer
                           reasonably feasible), PEPC, at its own election,
                           shall have the right to terminate this Agreement upon
                           written notice delivered to Equatorial within ten
                           (10) days after the end of said thirty (30) day (or
                           longer) period; and

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                  b.       In the event PEPC shall be in material breach in the
                           performance of any provision of this Agreement
                           ("Default") and if such Default shall not be cured
                           within thirty (30) days following written notice
                           thereof from Equatorial (or if such Default is
                           susceptible to cure but cannot be cured within such
                           30 day cure period, then if PEPC has not promptly
                           commenced curing such Default within said thirty (30)
                           day notice period or does not thereafter proceed to
                           cure such Default with reasonable diligence and good
                           faith without interruption except for causes beyond
                           its control), then upon the expiration of said thirty
                           (30) day period (or at such time as PEPC ceases
                           efforts to cure the Default or cure becomes no longer
                           reasonably feasible), Equatorial, at its own
                           election, shall have the right to terminate this
                           Agreement upon written notice delivered to PEPC
                           within ten (10) days after the end of said thirty
                           (30) day (or longer) period; and

                  c.       By PEPC if Equatorial is declared insolvent or
                           bankrupt or makes an assignment for the benefit of
                           creditors, or a receiver is appointed or any
                           proceeding is demanded by, for or against the other
                           under applicable bankruptcy, insolvency or
                           receivership law of any country;

                  d.       By Equatorial if PEPC is declared insolvent or
                           bankrupt or makes an assignment for the benefit of
                           creditors, or a receiver is appointed or any
                           proceeding is demanded by, for or against the other
                           under applicable bankruptcy, insolvency or
                           receivership law of any country.

         Termination of this Agreement under this Section 6.2 shall be without
         prejudice to any rights or remedies of the terminating party.

         6.3      Effect of Termination

                  Upon expiration or termination of this Agreement in accordance
                  with Section 6.1 or Section 6.2, or by operation of law or
                  otherwise:

                  (a)      The provisions of Section 2.1(b), Section 2.2,
                           Section 4, Section 5, this Section 6 and Section 7
                           shall survive such termination or expiration.

                  (b)      Equatorial's right to use the Proprietary Information
                           of PEPC shall cease and Equatorial shall, as soon as
                           possible:

                           i.       return to PEPC all tangible copies of PEPC's
                                    Proprietary Information in Equatorial's
                                    possession or control;

                           ii.      destroy all Proprietary Information of PEPC
                                    contained in any report, analysis, or other
                                    document, including all copies thereof, in
                                    Equatorial's possession or control and
                                    certify in writing to PEPC as to such
                                    destruction; and

                           iii.     permanently delete and erase from any
                                    electronic storage media any and all PEPC
                                    Proprietary Information or copies thereof,
                                    including, without limitation, from computer
                                    files (including back-ups and archives),
                                    tapes, discs and magnetic, electronic or
                                    optical media, and certify in writing to
                                    PEPC as to such deletion and erasure.

                  (c)      Equatorial shall within sixty (60) days from such
                           termination or expiration and if requested in writing
                           by PEPC ship to PEPC all Product in their inventory
                           subject to then outstanding purchase orders placed by
                           PEPC;

                  (d)      PEPC shall, consistent with the standard payment
                           terms set forth in this Agreement, pay Equatorial for
                           all Product shipped to PEPC under this Agreement and
                           not previously paid for; and

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                  (e)      Equatorial shall make the Contract Tooling and
                           Equipment available to PEPC as required by Section
                           2.2.

         Nothing in this Section shall relieve either party of liability for
         breach of this Agreement.

7.       GENERAL

         7.1      Relationship of the Parties

                  This Agreement shall in no way be construed to constitute any
                  party as the joint venture partner, employee or agent of any
                  other party nor shall any party have the authority to bind any
                  other in any respect, accept service of process or other
                  notice on the other's behalf, or make any representation,
                  statement or warranty by or on behalf of the other, it being
                  intended that each shall remain an independent contractor
                  responsible only for its own actions.

         7.2      Expenses

                  Except as otherwise provided in this Agreement, each party
                  shall be responsible for all costs and expenses incurred by it
                  in the performance of this Agreement.

         7.3      Assignment

                  This Agreement and the rights, duties and obligations of the
                  parties hereto shall not be assignable, transferable or
                  delegable by any party hereto without the prior written
                  consent of the other, not to be unreasonably withheld or
                  delayed, and any purported assignment, transfer or delegation
                  without such consent shall be void and of no effect.
                  Notwithstanding the foregoing;

                  a.       any party may assign this Agreement to an Affiliate,
                           provided that the assignment shall not constitute a
                           release of the assigning party and the assigning
                           party shall remain liable for all assigned
                           obligations in the event of a breach of this
                           Agreement by its assignee, and

                  b.       any party may assign this Agreement to an assignee of
                           all or substantially all its assets and business,
                           provided the assignee agrees in writing to be bound
                           by this Agreement on the same terms as the assignor
                           beginning on the date of assignment, whereupon the
                           assignor shall be relieved from liability or
                           obligation under this Agreement for periods after the
                           date of assignment, but not with respect to prior
                           periods.

         7.4      Governing Law: Choice of Forum

                  This Agreement shall be governed by and construed in
                  accordance with the laws of the State of Florida, U.S.A.,
                  without giving effect to Florida's rules of conflicts of law,
                  and regardless of the place or places of its physical
                  execution and performance. Any disputes arising from this
                  Agreement and not settled amicably, shall be referred to the
                  International Chamber of Commerce (ICC) for arbitration in
                  Chennai, India, in accordance with Section 7.4A. The parties
                  specifically agree that the United Nations Convention on
                  Contracts for the International Sale of Goods does not apply
                  to this Agreement or to any sale of product under this
                  Agreement.

         7.4A.    Dispute Resolution.

                  The parties shall strive to resolve amicably any and all
                  differences arising between or among them respecting the
                  interpretation of this Agreement or any part or provision
                  hereof or their rights and obligations hereunder by mutual
                  consultations. Failing such

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                  amicable resolution during a thirty (30) day period, and
                  subject to Section 7.5, any controversy, claim or dispute,
                  whether contractual or extra-contractual, relating to or
                  arising under, out of or in connection with this Agreement
                  (including issues of construction of the agreement to
                  arbitrate and the scope of arbitration) shall be finally
                  settled by arbitration held in Chennai, India under the Rules
                  of Arbitration of the International Chamber of Commerce.
                  Unless the parties agree to one arbitrator, there shall be
                  three arbitrators. The arbitrator(s) will not have authority
                  to award punitive damages to any party. The award of the
                  arbitrator(s) shall be final and binding upon the parties, and
                  judgment thereon may be entered in any court of competent
                  jurisdiction. Subject to Section 7.5, after the appointment of
                  the arbitrator(s), the arbitrator(s) shall have exclusive
                  power to consider and grant requests for provisional or
                  interim measures.

         7.5      Equitable Relief

                  If any party breaches any of its obligations under Section
                  2.1(b), Section 2.2, Section 3.7 or Section 4, the other party
                  shall be entitled to equitable relief to protect its interest
                  therein, including but not limited to injunctive relief, as
                  well as money damages. Nothing in this Agreement shall limit
                  any party's ability to seek immediate equitable relief in such
                  circumstances, as it reasonably believes that its interests
                  hereunder and in its property may be compromised.

         7.6      Partial Invalidity

                  If any provision of this Agreement is held to be invalid, void
                  or unenforceable, the remainder of the provisions shall remain
                  in full force and effect and shall in no way be affected,
                  impaired, or invalidated.

         7.7      Nonwaiver

                  The waiver by any party of a breach by any other party of any
                  provision of this Agreement shall not operate or be construed
                  as a waiver of any subsequent breach by that party. No waiver
                  shall be valid unless confirmed in writing and signed by the
                  party against whom it is to be enforced.

         7.8      Captions

                  The captions contained in this Agreement are for reference
                  purposes only and shall not affect in any way the meaning or
                  interpretation of this Agreement.

         7.9      Force Majeure

                  Any party shall be excused from performance of its obligations
                  hereunder to the extent and for such period of time as such
                  performance is prevented by an act of God, fire, flood,
                  earthquake, transportation disruption, war, insurrection,
                  labor dispute or other cause beyond the reasonable control of
                  such party including inability to obtain parts required to
                  perform the work contemplated by this Agreement.

         7.10     Counterparts

                  This Agreement may be executed in counterparts, each of which
                  when so executed and delivered shall constitute a complete and
                  original instrument but all of which together shall constitute
                  one and the same agreement, and it shall not be necessary when
                  making proof of this Agreement or any counterpart hereof to
                  account for any other counterpart.

                                      10
<PAGE>

         7.11     Waiver of Jury Right

                  The parties hereby waive their right, if any, to have any
                  dispute arising under this Agreement determined by a jury
                  proceeding.

         7.12     Entire Agreement

                  This Agreement and the attachments hereto, together with
                  PEPC's letter to Equatorial dated December 10, 2004 to PEPC,
                  constitute the entire agreement between the parties concerning
                  the subject matter hereof and supersedes all prior and
                  contemporaneous agreements between the parties. This Agreement
                  may be amended only by an instrument in writing, which
                  expressly refers to this Agreement and specifically states
                  that it is intended to amend it. No party is relying upon any
                  warranties, representations, or inducements not set forth
                  herein.

         7.13     Notices

                  All notices, consents, and other communications required or
                  permitted to be made under the terms of this Agreement shall
                  be in writing and shall be;

                  c.       personally delivered by an agent of the relevant
                           party, or

                  d.       transmitted by postage prepaid, certified or
                           registered mail, or

                  e.       by reliable express mail services (e.g Federal
                           Express), or

                  f.       by facsimile, confirmed by airmail,

                  to the parties at the address first set out above or at such
                  address as one party hereto may notify the other in writing.
                  All notices shall be effective upon receipt.

         7.14     Binding Nature

                  This Agreement shall be binding on upon and inure to the
                  benefit of the parties hereto, their successors and permitted
                  assigns.

         7.15     Compliance with Laws

                  Both parties will at all times conduct their activities in
                  compliance with all laws and regulations applicable to it,
                  including import, export, customs, unfair competition,
                  antitrust, advertising and consumer laws.

                                      11
<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be signed
on the day and year first above written.

PRECISION ENGINE PRODUCTS CORP.

By: /s/ Robert L. Dayton
   ---------------------
    Name: Robert L. Dayton
    Title: V.P., GM, PEPC

EQUATORIAL ENTERPRISES LIMITED

By: /s/ DHANANJAY M. BAPAT
    ------------------------
    Name: DHANANJAY M. BAPAT
    Title: Director

                                      12
<PAGE>

                                  SCHEDULE 2.3

                               PRODUCTS AND PRICES

                                      13
<PAGE>

                                  SCHEDULE 2.3

<TABLE>
<CAPTION>
                                       UNIT BASE PRICE OF BODIES
CASTING            BODIES                 AS OF JUN 16, 2004
<S>                <C>                 <C>
**                   **                           **
                     **                           **

**                   **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **

**                   **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **
                     **                           **

**                   **                           **
                     **                           **
                     **                           **

**                   **                           **
                                                  **
                                                  **

**                   **                           **
                     **                           **
                     **                           **

**                   **                       TBD
**
**
</TABLE>

<PAGE>

                                  SCHEDULE 2.3

UNIT BASE PRICE FOR ** LINKED TO FOLLOWING
RAW MATERIAL PRICE AS OF JUNE 16, 2004

<TABLE>
<CAPTION>
                  BASE PRICE PER METRIC TONNE   PRICE PER METRIC TONNE
                      AS ON JUNE 16, 2004       AS ON OCTOBER 7, 2004    CHANGE
  RAW MATERIAL           INDIAN RUPEES              INDIAN RUPEES          %
-------------------------------------------------------------------------------
<S>               <C>                           <C>
**                            **                         **                **
**                            **                         **                **
**                            **                         **                **
**                            **                         **                **
**                            **                         **                **
</TABLE>

UNIT PRICE FOR ** LINKED TO FOLLOWING
RAW MATERIAL PRICE AS OF DEC 20, 2004

<TABLE>
<CAPTION>
                       % CHANGE IN PRICE OF             EFFECT OF CHANGE IN RAW
                       MACHINED ** FOR 10%               MATERIAL PRICES ON THE
                      CHANGE IN BASE PRICE OF             PRICE OF MACHINED **
RAW MATERIAL        CORRESPONDING RAW MATERIAL             PRICE IN %
--------------------------------------------------------------------------------
<S>               <C>                                   <C>
**                              **                                 **
**                              **                                 **
**                              **                                 **
**                              **                                 **
**                              **                                 **
--------------------------------------------------------------------------------
Total                                                              **
--------------------------------------------------------------------------------
</TABLE>

<TABLE>
<S>                                    <C>
Agreed Base Price USD                  **
Upcharge component USD                 **
New price based on the upcharge USD    **
</TABLE>

<PAGE>

                                  SCHEDULE 3.1

                              STANADYNE CORPORATION
                           STANDARD TERMS OF PURCHASE

1. GENERAL

A. Prompt acceptance of this Purchase Order by signing and returning the
acknowledgment copy hereof is requested. Delivery or commencement of work
hereunder shall also constitute acceptance of this Purchase Order and all of its
terms.

B. This Purchase Order is the final, complete and exclusive statement of
the agreement between the parties and may not be modified, contradicted,
supplemented, explained or waived by parol evidence, Seller's acknowledgments, a
course of dealing, or in any other way except in a writing signed by an
authorized representative of Buyer. Any references in this Purchase Order to
Seller's proposal or quotation are only to describe the materials or work
covered hereby, and this Purchase Order does not constitute an acceptance of any
terms set forth therein.

C. This Purchase Order and the language set forth herein is to be interpreted
according to the Uniform Commercial Code as in effect in the state shown at the
address of Buyer.

2. PERFORMANCE BY SELLER

A. Time is of the essence for this Purchase Order, and it is essential that it
be performed and filled on the specified date(s) and that the work progress in a
timely fashion. Deliveries shall be made both in the quantities and at the times
specified in schedules furnished by Buyer. Buyer reserves the right to change
delivery schedules or direct temporary suspension of scheduled shipment(s).
Seller shall immediately give written notice to Buyer setting forth the reason
and extent of any anticipated delay in any scheduled shipment(s).

B. Seller warrants that material and work furnished hereunder shall be of the
highest grade and quality, unless otherwise specified by Buyer. Seller further
warrants that it shall meet and otherwise comply with, as appropriate, all
standards of the Occupational Safety and Health Act of 1970, as amended; Fair
Labor Standards Act of 1938, as amended; Title VII of the Civil Rights Act of
1964, as amended; Executive Order 11246, as amended by Executive Order 11375;
Section 503 of the Rehabilitation Act of 1973, as amended; Vietnam Era Veteran's
Readjustment Assistance Act of 1974, as amended; Executive Order 11625, as
amended; Motor Vehicle Safety Act, as amended; all federal, state and local
safety, health and environmental laws, as amended; and all rules, regulations,
ordinances, guidelines and other requirements related to the foregoing, all of
which are hereby incorporated by reference. At Buyer's option, any part of the
material or work not complying with the requirements hereof, expressed or
implied, may be returned, at Seller's risk and expense including transportation
both ways, for prompt correction of defects. Payment by Buyer shall not
constitute acceptance of nonconforming material or work or waive any rights of
Buyer hereunder.

C. This Purchase Order is issued to Seller in reliance on Seller's personal
performance, and Seller may not assign this Purchase Order or the partial
payment of any sums due hereunder or subcontract any substantial part of the
performance or work other than for standard commercial supplies.

D. Seller agrees to exculpate, defend, indemnify and hold harmless Buyer and its
customers from and against all claims, liabilities, lawsuits, expenses
(including attorneys' fees and other defense costs) and penalties, including
those based on Buyer's or its customer's negligence, which arise, directly or
indirectly, out of any of the following: (i) alleged defects in material,
workmanship or design of the material or work furnished hereunder; (ii)
violations of federal, state or local safety, health or environmental laws
arising out of the use or resale of material or work furnished hereunder; (iii)
personal injury or death of Seller, its agents, employees or subcontractors
and/or damage to or destruction of Seller's or its subcontractor's property
arising out of the use or resale of materials or work furnished hereunder; (iv)
the infringement by material or work furnished hereunder of any United States or
foreign patent, trademark or intellectual property right; or (v) the breach by
Seller of any of its representations, warranties or covenants hereunder.

3. CERTAIN CHARGES OR EXPENSES NEGATED; RISK OF LOSS

A. Unless otherwise specifically provided herein: (i) all material shall be
packed, marked and shipped in accordance with requirements of common carriers,
as specified by the Interstate Commerce Commission; (ii) no charges for packing,
crating, demurrage, storage or containers shall be allowed; (iii) Seller shall
pay and the price includes all applicable sales and similar type taxes other
than those which Seller is prohibited by law from assuming; and (iv) any
information or data disclosed or furnished to Buyer by Seller hereunder shall be
deemed sold as part of the price hereof, non-proprietary and free of all
restrictions whatsoever. Unless specifically instructed by Buyer, Seller shall
select the most economical transportation mode available consistent with Buyer's
delivery schedule.

B. Delay in receiving invoices or statements will be just cause for withholding
payment, without loss of cash discount privileges.

C. The risk of loss for conforming goods shall be on Seller until the products
are delivered to the destination(s) specified in this Purchase Order, regardless
of whether Buyer or Seller is paying for the freight; provided, however, that
Buyer shall assume the risk of loss for conforming goods while being transported
on Buyer's vehicles. The risk of loss for nonconforming goods shall be on Seller
at all times.

4. BUYER'S PROPERTY

A. Buyer retains title to all drawings, designs, specifications, technical data
and materials, including tools, special dies and patterns furnished to Seller or
specifically paid for by Buyer for use with this Purchase Order. Said materials
shall remain the property of Buyer, shall be treated as Buyer's confidential
information, shall be used by Seller only to complete this order and shall be
returned to Buyer upon completion or termination of this Purchase Order or when
no longer required. Any copies or reproductions thereof shall be made only with
Buyer's written consent, shall be segregated and clearly identified as property
of Buyer and shall be returned to Buyer upon completion or termination of this
Purchase Order or when no longer required. Seller authorizes Buyer to sign and
file a UCC-1 Financing Statement covering the foregoing described property of
Buyer. Buyer reserves the right at any time and for any reason to demand
possession of said materials and any copies or reproductions thereof or to enter
upon the premises of Seller to reclaim possession of the same.

B. Seller assumes all risk and liability for loss or damage to said materials,
except for normal wear, and agrees to permit inspection and supply detailed
statements of inventory upon request of Buyer. Seller shall at all times cover
said materials with full fire and extended coverage insurance naming Buyer as
loss payee and furnish to Buyer evidence of said coverage upon Buyer's request.

5. WARRANTIES

A. In addition to the other warranties made herein, Seller represents and
warrants that Seller has special skills and that Buyer is relying on that skill
and the judgment of Seller to select and furnish suitable products or services.
All written or oral statements of Seller as to function, quality, suitability,
and use of the products or services are warranties of Seller. Seller represents
and warrants that all products (including packaging) and services (including
construction work) provided under this Purchase Order shall: (i) fully and
strictly conform to specifications; (ii) be free of defects; (iii) be of good
material and workmanship; (iv) be merchantable and fit for the general and
particular purposes for which they are required; and (v) be free of any liens,
claims or encumbrances of any kind. If any product or service is nonconforming
Seller shall, if Buyer requests, promptly and without charge repair or replace
the product or provide replacement service. If any specification or instruction
supplied by Buyer, regardless of the form, appears to be in conflict with any
other specifications or instructions, or otherwise appears insufficient or
unclear, it shall be the duty of Seller to request clarification from Buyer, who
shall reserve the right to determine products or services' conformity with the
specifications or instructions.

B. All goods or material received shall be subject to Buyer's inspection and
rejection. Goods or material not in conformance to Buyer's specifications will
be held for Seller's instructions at Seller's risk and, if Seller so directs,
will be returned to Seller at Seller's expense. No goods or material returned as
nonconforming shall be replaced without a new order and schedule established by
Buyer. Payment for material on this Purchase Order prior to inspection shall not
constitute an acceptance thereof, nor will acceptance remove Seller's
responsibility for latent defects or any other obligation of Seller under this
Purchase Order.

C. In addition to any and all other remedies available to Buyer, Buyer shall be
entitled to all incidental damages resulting from a breach by Seller of this
Purchase Order, including, but not limited to, all expenses reasonably incurred
in inspection, receipt, transportation, and care and custody of the goods or
material rightfully rejected, any commercially reasonable charges, expenses or
commissions incurred in effecting cover, and any other reasonable expense
incident to a delay or breach by Seller.

6. CHANGES

Buyer may at any time by written notice make changes within the general scope of
this Purchase Order. If any such change affects the time for or cost of
performance, an equitable adjustment shall be made in the delivery schedule,
purchase price, or both by agreement of the parties. All claims by Seller for
adjustment under this clause must be asserted in writing and in full within
thirty (30) days from the date of notification of the change or shall be waived.
Nothing herein shall excuse Seller from proceeding with the order as changed. No
extras shall be allowed except pursuant to this clause.

7. CANCELLATION

A. Buyer may at any time terminate this Purchase Order, in whole or in part, by
written notice, whereupon Seller shall terminate work pursuant to the terms of
such notice. Seller shall promptly advise Buyer of the quantities of applicable
work and material on hand or purchased prior to termination and the most
favorable disposition that Seller can make thereof. Seller shall comply with
Buyer's instructions regarding disposition of such work and material. All claims
by Seller based on such termination must be asserted in writing and in full
within sixty (60) days from the date of notification of the termination or shall
be waived. Buyer shall pay Seller the Purchase Order price of finished work and
the cost to Seller (excluding profit or losses) of work in process and raw
material, less: (i) the agreed value of any items used or sold by Seller with
Buyer's consent; and (ii) the reasonable value or cost (whichever is higher) of
any defective, damaged or destroyed work or material and any items sold or used
by Seller without Buyer's consent. Buyer will make no payments for finished
work, work in process or raw material fabricated or procured by Seller
unnecessarily in advance of, or in excess of, Buyer's delivery requirements. The
payment provided under this clause shall constitute Buyer's only liability in
the event this Purchase Order is terminated as provided herein. The foregoing
provisions of this clause shall not apply to any termination by Buyer for
default of Seller or under the following provisions of this clause unless a
court shall find such termination by Buyer to be improper.

B. To the extent this Purchase Order covers items normally carried in inventory
by Seller (as distinguished from items specially made to Buyer's
specifications), Buyer shall have no liability for any termination of this
Purchase Order, in whole or in part, prior to actual shipment. For any
termination made within ten (10) days after receipt by Buyer of items from
Seller, Buyer's liability shall be limited to returning said items and
reimbursing Seller for direct costs of handling and transportation.

                                       14
<PAGE>

C. Buyer may cancel without liability in the event of Seller's insolvency or
bankruptcy.

D. Buyer shall not be liable for failure to take delivery of
material or work or render any other performance in the event fire, accidents,
labor difficulties, governmental actions, third-party failures or any other
conditions beyond Buyer's control render it commercially impractical for Buyer
to do so.

8. GOVERNMENT CONTRACTS

If this Purchase Order is for material or work under a government contract or
subcontract, all contract provisions applicable hereto and required by law,
order, regulation or Buyer's government contract or subcontract are hereby
incorporated by reference as if fully set forth herein. Where necessary to make
the context of such provisions or clauses applicable to this Purchase Order, the
terms "Contractor", "Contract", and "Government" or "Contracting Officer" (or
terms of similar import) shall mean respectively Seller, this Purchase Order,
and Buyer.

9. NOTICE

Buyer values highly the confidence and good will of its customers and suppliers.
Buyer offers its products only on their merit, and Buyer expects its customers
to judge and purchase its products and services solely on the basis of quality,
price, delivery and service. This policy applies in all of Buyer's relationships
with its customers and suppliers.

10. BILLING AND SHIPPING INSTRUCTIONS

A. In the absence of special packing requirements, all material shall be packed,
marked and shipped in accordance with requirements of common carriers, as
specified by the Interstate Commerce Commission.

B. The Purchase Order number must be shown on all packing slips, bills of
lading, invoices and packages. Along with the Purchase Order number, the box
identification should also have the packing list number, part number, and
quantity on the box label.

C. Packing slips shall accompany each shipment, and an original bill of lading
or other shipping receipt shall be promptly forwarded by Seller to Buyer.

D. Invoices shall be rendered promptly to Buyer at its address as indicated.

REV. JULY, 2003

                                       15
<PAGE>

[STANADYNE LOGO]

         December 10, 2004

         Mr Jay Bapat
         Equatorial Enterprises Ltd.
         Equatorial Forum
         14 Mumbai-Pune Road, Wakdewadi,
         Pune 411 003
         INDIA

                  Re: Confidentiality of Customer Names of Equatorial

         Dear Jay,

         Precision Engine Products Corp. ("PEPC") and Equatorial Enterprises Ltd
         ("Equatorial") are currently negotiating a manufacturing and supply
         agreement (the "Agreement") pursuant to which PEPC would purchase from
         Equatorial certain **. The Agreement will prohibit Equatorial and its
         affiliates from supplying ** that are competitive with or that are
         substitutes for the products to be supplied to PEPC under the Agreement
         to any person or entity, anywhere in the world, other than the
         continuing supply of ** to existing customers of Equatorial whose names
         are to be provided to PEPC ("Existing Equatorial Customers").
         Equatorial has requested that PEPC sign this letter as a condition to
         providing to PEPC the names of the Existing Equatorial Customers.

         By signing below, PEPC agrees that it will:

         1. Hold in confidence and not disclose to third parties the Existing
         Equatorial Customer list to be provided to PEPC by Equatorial in
         connection with the final negotiation of the Agreement; and

         2. Not, unless it obtains Equatorial's prior written approval, solicit
         Existing Equatorial Customers with respect to the supply of ** in a
         manner that is competitive with Equatorial's existing business with
         such customers, unless any such Existing Equatorial Customer is already
         a customer of PEPC at the time PEPC receives the Existing Equatorial
         Customer list. This letter shall not prohibit PEPC from responding to
         inquiries it may receive without solicitation, with Equatorial's
         concurrence.

         The Agreement will not include a list of the Equatorial Customers, and
         will either incorporate the provisions of this letter as continuing
         obligations of PEPC or will contain similar agreements of PEPC in
         substitution for the terms of this letter.

         Regards,

         Precision Engine Products Corp.

         By: /S/ Dwarak Parvatam
            --------------------
            Name:  Dwarak Parvatam
            Title: Directors. Materials & Purchasing

         Precision Engine Products Corp.
         2919 Commonwealth Blvd., Tallahassee, FL 32303, USA Tel. (860)
         575-8181, Fax: (850) 576-9630exv10w1

 

EXHIBIT 10.1

SECOND AMENDMENT TO CREDIT AND SECURITY AGREEMENT

          This Amendment, dated as of January 25, 2005, is made by and between ZILA NUTRACEUTICALS,
INC., an Arizona corporation (“ZN”), ZILA BIOTECHNOLOGY, INC., an Arizona corporation (“ZB”), ZILA
PHARMACEUTICALS, INC., a Nevada corporation (“ZP”), ZILA SWAB TECHNOLOGIES, INC., an Arizona
corporation (“ZS”), OXYCAL LABORATORIES, INCORPORATED, an Arizona corporation (“Oxycal”)
(collectively, jointly and severally the “Borrower”), and WELLS FARGO BUSINESS CREDIT, INC., a
Minnesota corporation (the “Lender”).

Recitals

          The Borrower and the Lender are parties to a Credit and Security Agreement dated as of
February 6, 2004, as amended from time to time (the “Credit Agreement”). Capitalized terms used in
these recitals have the meanings given to them in the Credit Agreement unless otherwise specified.

          The Borrower has requested that certain amendments be made to the Credit Agreement, which the
Lender is willing to make pursuant to the terms and conditions set forth herein.

          NOW, THEREFORE, in consideration of the premises and of the mutual covenants and agreements
herein contained, it is agreed as follows:

          1. Amendments. The Credit Agreement is hereby amended as follows:

               (a) Effective December 31, 2004, Sections 6.2(a) through 6.2(c) are hereby deleted and
replaced as follows:

(a) Quarterly Net Worth. The Borrower covenants that as of
December 31, 2003, the Guarantor had a Book Net Worth of not
less than $50,000,000.00. The Borrower covenants that,
commencing with the fiscal quarter ending January 31, 2005
and continuing each quarter thereafter, the Guarantor shall
not achieve a Book Net Worth decrease of more than the
amounts set forth below as measured from the last day of the
immediately preceding fiscal year.

- 1 -

 

	 	 	 	 	 	 	 	 
	 
	 	 	 	 	Maximum Net	 	 
	 	Quarter Ending	 	 	Worth Decrease	 	 
	 	January 31, 2005
	 	 	 	($7,500,000.00	)	 
	 	April 30, 2005
	 	 	 	($11,000,000.00	)	 
	 	July 31, 2005
	 	 	 	($11,000,000.00	)	 
	 

(b) Monthly Net Worth. The Borrower covenants that
commencing with the month ending November 30, 2004 and
continuing on the last day of each month thereafter, the
Guarantor’s Book Net Worth as of the last day of each such
month shall not be less than the amounts set forth below:

	 	 	 	 	 	 	 	 
	 
	 	November, 2004 through January, 2005
	 	 	$	41,500,000.00	 	 
	 	February, 2005 through June, 2005
	 	 	$	38,000,000.00	 	 
	 	July, 2005
	 	 	$	39,000,000.00	 	 
	 

(c) Capital Expenditures. The Borrower and the Guarantor
together will not incur or contract to incur Capital
Expenditures of more than $3,000,000.00 in the aggregate
during 2005 fiscal year.

               (b) Exhibit B of the Credit Agreement is hereby deleted and replaced with Exhibit B attached
hereto.

          2. Amendment Fee. The Borrower shall pay the Lender as of the date hereof a fully
earned, non-refundable fee in the amount of $15,000.00 in consideration of the Lender’s execution
and delivery of this Amendment.

          3. No Other Changes. Except as explicitly amended by this Amendment, all of the terms
and conditions of the Credit Agreement shall remain in full force and effect and shall apply to any
advance or letter of credit thereunder.

          4. Conditions Precedent. This Amendment shall be effective when the Lender shall have
received an executed original hereof, together with each of the following, each in substance and
form acceptable to the Lender in its sole discretion:

               (a) The Acknowledgment and Agreement of Guarantor set forth at the end of this Amendment, duly
executed by the Guarantor and Subordinated Creditor.

               (b) A Certificate of the Secretary of the Borrower certifying as to (i) the resolutions of the
board of directors of the Borrower approving the execution and delivery of this Amendment, (ii) the
fact that the articles of incorporation and bylaws of the Borrower, which were certified and
delivered to the Lender pursuant to the Certificate of Authority of the Borrower’s secretary or
assistant secretary dated as of

- 2 -

 

February 6, 2004 continue in full force and effect and have not been amended or otherwise
modified except as set forth in the Certificate to be delivered, and (iii) certifying that the
officers and agents of the Borrower who have been certified to the Lender, pursuant to the
Certificate of Authority of the Borrower’s secretary or assistant secretary dated as of February 6,
2004, as being authorized to sign and to act on behalf of the Borrower continue to be so authorized
or setting forth the sample signatures of each of the officers and agents of the Borrower
authorized to execute and deliver this Amendment and all other documents, agreements and
certificates on behalf of the Borrower.

               (c) Such other matters as the Lender may require.

          5. Representations and Warranties. The Borrower hereby represents and warrants to the
Lender as follows:

               (a) The Borrower has all requisite power and authority to execute this Amendment and to
perform all of its obligations hereunder, and this Amendment has been duly executed and delivered
by the Borrower and constitutes the legal, valid and binding obligation of the Borrower,
enforceable in accordance with its terms.

               (b) The execution, delivery and performance by the Borrower of this Amendment has been duly
authorized by all necessary corporate action and do not (i) require any authorization, consent or
approval by any governmental department, commission, board, bureau, agency or instrumentality,
domestic or foreign, (ii) violate any provision of any law, rule or regulation or of any order,
writ, injunction or decree presently in effect, having applicability to the Borrower, or the
articles of incorporation or by-laws of the Borrower, or (iii) result in a breach of or constitute
a default under any indenture or loan or credit agreement or any other agreement, lease or
instrument to which the Borrower is a party or by which it or its properties may be bound or
affected.

               (c) All of the representations and warranties contained in Article V of the Credit Agreement
are correct on and as of the date hereof as though made on and as of such date, except to the
extent that such representations and warranties relate solely to an earlier date.

          6. References. All references in the Credit Agreement to “this Agreement” shall be
deemed to refer to the Credit Agreement as amended hereby; and any and all references in the
Security Documents to the Credit Agreement shall be deemed to refer to the Credit Agreement as
amended hereby.

          7. No Waiver. The execution of this Amendment and acceptance of any documents related
hereto shall not be deemed to be a waiver of any Default or Event of Default or Default Period
under the Credit Agreement or breach, default or event of default under any Security Document or
other document held by the Lender, whether or not known to the Lender and whether or not existing
on the date of this Amendment.

- 3 -

 

          8. Release. The Borrower and each Guarantor by signing the Acknowledgment and
Agreement of Guarantor each hereby absolutely and unconditionally releases and forever discharges
the Lender, and any and all participants, parent corporations, subsidiary corporations, affiliated
corporations, insurers, indemnitors, successors and assigns thereof, together with all of the
present and former directors, officers, agents and employees of any of the foregoing, from any and
all claims, demands or causes of action of any kind, nature or description, whether arising in law
or equity or upon contract or tort or under any state or federal law or otherwise, which the
Borrower or such Guarantor has had, now has or has made claim to have against any such person for
or by reason of any act, omission, matter, cause or thing whatsoever arising from the beginning of
time to and including the date of this Amendment, whether such claims, demands and causes of action
are matured or unmatured or known or unknown.

          9. Costs and Expenses. The Borrower hereby reaffirms its agreement under the Credit
Agreement to pay or reimburse the Lender on demand for all costs and expenses incurred by the
Lender in connection with the Loan Documents, including without limitation all reasonable fees and
disbursements of legal counsel. Without limiting the generality of the foregoing, the Borrower
specifically agrees to pay all fees and disbursements of counsel to the Lender for the services
performed by such counsel in connection with the preparation of this Amendment and the documents
and instruments incidental hereto. The Borrower hereby agrees that the Lender may, at any time or
from time to time in its sole discretion and without further authorization by the Borrower, make a
loan to the Borrower under the Credit Agreement, or apply the proceeds of any loan, for the purpose
of paying any such fees, disbursements, costs and expenses, including the fee described in Section
2 above.

          10. Miscellaneous. This Amendment and the Acknowledgment and Agreement of Guarantor
may be executed in any number of counterparts, each of which when so executed and delivered shall
be deemed an original and all of which counterparts, taken together, shall constitute one and the
same instrument.

- 4 -

 

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed as of
the date first written above.

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA NUTRACEUTICALS, INC., an Arizona corporation	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	By	 	/s/ Andrew A. Stevens
	 	 	 	 	 
	

	 	 	 	Its
	 	/s/ Vice President	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA BIOTECHNOLOGY, INC., an Arizona corporation	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	By	 	/s/ Andrew A. Stevens
	 	 	 	 	 
	

	 	 	 	Its
	 	/s/ Vice President	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA PHARMACEUTICALS, INC., a Nevada corporation	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	By	 	/s/ Andrew A. Stevens
	 	 	 	 	 
	

	 	 	 	Its
	 	/s/ Vice President	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA SWAB TECHNOLOGIES, INC., an Arizona
corporation	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	By	 	/s/ Andrew A. Stevens
	 	 	 	 	 
	

	 	 	 	Its
	 	/s/ Vice President	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

- 5 -

 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	OXYCAL LABORATORIES, INCORPORATED, an Arizona
corporation	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	By	 	/s/ Andrew A. Stevens
	 	 	 	 	 
	

	 	 	 	Its
	 	/s/ Vice President	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	WELLS FARGO BUSINESS CREDIT, INC.	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	By	 	/s/ Andrew A. Stevens
	 	 	 	 	 
	

	 	 	 	Its
	 	/s/ Vice President	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

- 6 -

 

ACKNOWLEDGMENT AND AGREEMENT OF GUARANTORS

          The undersigned, a guarantor of the indebtedness of the Borrower, as defined above (the
“Borrower”) to Wells Fargo Business Credit, Inc. (the “Lender”) pursuant to a Guaranty dated as of
February 6, 2004 (the “Guaranty”), hereby (i) acknowledges receipt of the foregoing Amendment; (ii)
consents to the terms (including without limitation the release set forth in paragraph 8 of the
Amendment) and execution thereof; (iii) reaffirms his or its obligations to the Lender pursuant to
the terms of his or its Guaranty; and (iv) acknowledges that the Lender may amend, restate, extend,
renew or otherwise modify the Credit Agreement and any indebtedness or agreement of the Borrower,
or enter into any agreement or extend additional or other credit accommodations, without notifying
or obtaining the consent of the undersigned and without impairing the liability of the undersigned
under the Guaranty for all of the Borrower’s present and future indebtedness to the Lender.

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA, INC., a Delaware corporation	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	By	 	/s/ Andrew A. Stevens
	 	 	 	 	 
	

	 	 	 	Its
	 	/s/ Vice President	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

- 7 -

 

Exhibit B to Credit and Security Agreement

Compliance Certificate

	 	 	 
	To:

	 	                                                            
	 
	 	 
	

	 	Wells Fargo Business Credit, Inc.
	 
	 	 
	Date:

	 	                                        , 2004
	 
	 	 
	Subject:

	 	ZILA NUTRACEUTICALS, INC., an Arizona corporation, ZILA
BIOTECHNOLOGY, INC., an Arizona corporation, ZILA
PHARMACEUTICALS, INC., a Nevada corporation, ZILA SWAB
TECHNOLOGIES, INC., an Arizona corporation, OXYCAL LABORATORIES,
INCORPORATED, an Arizona corporation
Financial Statements

In accordance with our Credit and Security Agreement dated as of ___, 2003 (the “Credit
Agreement”), attached are the financial statements of ZILA NUTRACEUTICALS, INC., an Arizona
corporation, ZILA BIOTECHNOLOGY, INC., an Arizona corporation, ZILA PHARMACEUTICALS, INC., a Nevada
corporation, ZILA SWAB TECHNOLOGIES, INC., an Arizona corporation, OXYCAL LABORATORIES,
INCORPORATED, an Arizona corporation (collectively, jointly and severally the “Borrower”), as of
and for ___, ___(the “Reporting Date”) and the year-to-date period then ended (the
“Current Financials”). All terms used in this certificate have the meanings given in the Credit
Agreement.

          I certify (as an officer of the Borrower, but not in my personal capacity) that the Current
Financials have been prepared in accordance with GAAP, subject to year-end audit adjustments, and
fairly present the Borrower’s financial condition and the results of its operations as of the date
thereof.

Events of Default. (Check one):

 ̈ The undersigned does not have knowledge of the
occurrence of a Default or Event of Default under
the Credit Agreement except as previously reported
in writing to the Lender.

 ̈ The undersigned has knowledge of the occurrence of a
Default or Event of Default under the Credit
Agreement not previously reported in writing to the
Lender and attached hereto is a statement of the
facts with respect to thereto. The Borrower
acknowledges that pursuant to Section 2.10(d) of the
Credit Agreement, the Lender may impose the Default
Rate at any time during the resulting Default
Period.

I hereby certify to the Lender as follows:

 ̈ The Reporting Date does not mark the end of one of
the Borrower’s fiscal quarters, hence I am
completing only paragraph ___below.

- 8 -

 

 ̈ The Reporting Date marks the end of one of the Borrower’s fiscal quarters,
hence I am completing all paragraphs below except paragraph ___.

 ̈ The Reporting Date marks the end of the Borrower’s fiscal year, hence I am
completing all paragraphs below.

Financial Covenants. I further hereby certify that (as an officer of the Borrower, but not
in my personal capacity) the Borrower is in compliance with the covenants set forth in Section 6(a)
through (c) of the Agreement, except as indicated below. The calculations made to determine
compliance are as follows:

Covenant 6.2(a) Quarterly Net Worth

	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	Quarter Ending	 	 	Maximum Net Worth Decrease	 	 	 	Actual	 	 
	 	January 31, 2005
	 	 	$	7,500,000.00	 	 	 	 	 	 	 
	 	April 30, 2005
	 	 	$	11,000,000.00	 	 	 	 	 	 	 
	 	July 31, 2005
	 	 	$	11,000,000.00	 	 	 	 	 	 	 
	 

Covenant 6.2(b) Monthly Net Worth

	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	Month Ending	 	 	Minimum Net Worth Required	 	 	 	Actual	 	 
	 	November, 2004 through
January, 2005
	 	 	$	41,500,000.00	 	 	 	 	 	 	 
	 	February, 2005 through June,
2005
	 	 	$	38,000,000.00	 	 	 	 	 	 	 
	 	July, 2005
	 	 	$	39,000,000.00	 	 	 	 	 	 	 
	 

- 9 -

 

Covenant 6.2(c) Capital Expenditures

	 	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	Year	 	Maximum Allowable Capital 
Expenditures	 	 	 	Actual	 	 
	 	2005
	 	$3,000,000.00	 	 	 	 	 	 	 
	 

     Attached hereto are all relevant facts in reasonable detail to evidence, and the computations
of the financial covenants referred to above.

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA NUTRACEUTICALS, INC., an Arizona corporation	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	

	 	By	 	 	 	 	 	 	 	 
	 	 	 	 	 
	

	 	 	 	Its	 	 	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA BIOTECHNOLOGY, INC., an Arizona corporation	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	

	 	By	 	 	 	 	 	 	 	 
	 	 	 	 	 
	

	 	 	 	Its	 	 	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA PHARMACEUTICALS, INC., a Nevada corporation	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	

	 	By	 	 	 	 	 	 	 	 
	 	 	 	 	 
	

	 	 	 	Its	 	 	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	ZILA SWAB TECHNOLOGIES, INC., an Arizona
corporation	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	

	 	By	 	 	 	 	 	 	 	 
	 	 	 	 	 
	

	 	 	 	Its	 	 	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

- 10 -

 

	 	 	 	 	 	 	 	 	 	 	 
	 	 	OXYCAL LABORATORIES, INCORPORATED, an Arizona

corporation	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	

	 	By	 	 	 	 	 	 	 	 
	 	 	 	 	 
	

	 	 	 	Its	 	 	 	 	 	 
	

	 	 	 	 	 	 	 	 	 	 

- 11 -

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