Document:

Exhibit 10.20
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The Securities  represented by this  Convertible  Note have not been  registered
under the  Securities  Act of 1933,  as amended  ("Act"),  or  applicable  state
securities laws ("State Acts") and shall not be sold,  hypothecated,  donated or
otherwise  transferred  unless the  Borrower  shall have  received an opinion of
Legal Counsel for the Borrower, or such other evidence as may be satisfactory to
Legal Counsel for the Borrower,  to the effect that any such transfer  shall not
require registration under the Act and the State Acts.
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                               BPK RESOURCES, INC.

                              f/k/a Bepariko Biocom

                         12.00% SECURED CONVERTIBLE NOTE

$600,000                                                                   No: 2

                          DATE OF ISSUE: JULY 29, 2003

     BPK Resources,  Inc. (a Nevada corporation) (hereinafter referred to as the
"Borrower") is indebted and, for value received, herewith promises to pay to:

                             TRIDENT GROWTH FUND, LP

or to its order, (together with any assignee, jointly or severally, the "Holder"
or "Lender") on or before July 31, 2004 (the  "Termination  Date")  (unless this
Convertible  Note shall have been sooner called for  redemption or presented for
conversion  as  herein  provided),  the  sum of  Six  Hundred  Thousand  Dollars
($600,000) (the "Principal  Amount") and to pay interest on the Principal Amount
at the rate of  twelve  percent  (12.00%)  per  annum  as  provided  herein.  In
furtherance  thereof,  and  in  consideration  of  the  premises,  the  Borrower
covenants, promises and agrees as follows:

     1. Interest: Interest on the Principal Amount outstanding from time to time
shall  accrue at the rate of 12.00%  per annum and be  payable  in cash via wire
transfer  in monthly  installments  commencing  August 30,  2003 and  subsequent
payments  shall be made on the  last  day of each  month  thereafter  until  the
Principal  Amount and all  accrued and unpaid  interest  shall have been paid in
full unless the Holder gives the Borrower written  notification  that it desires
for a  particular  month's  interest  payment  to be  paid  in  fully  paid  and
nonassessable  shares of common  stock,  $0.001 par value,  of the Borrower (the
"Common  Stock"),  based on a stock  price of $0.38 per share and such price per
share shall be subject to  adjustment at the times,  and in accordance  with the
provisions as set forth in section 4(a).  Overdue  principal and interest on the
Convertible Note shall, to the extent permitted by applicable law, bear interest
at the rate of 18.00% per annum.  All  payments of both  principal  and interest
shall be made at the address of the Holder hereof as it appears in the books and
records of the  Borrower,  or at such other  place as may be  designated  by the
Holder hereof in writing to Borrower.

     2. Maturity:  If not sooner redeemed or converted,  this  Convertible  Note
shall mature on July 31, 2004 at which time all then remaining unpaid principal,
interest and any other  charges then due under the Loan  Agreement  shall be due
and payable in full via wire transfer.

<PAGE>

     3. Optional  Redemption:  (a) On any interest  payment date and after prior
irrevocable  notice as provided for below,  the outstanding  principal amount of
this Convertible Note is redeemable at the option of the Borrower,  in whole but
not in part, at 100% of par.

     (b) The Borrower may exercise its right to redeem prior to Termination Date
by giving notice (the  "Redemption  Notice")  thereof to the Holder as such name
appears on the books of the  Borrower,  which notice shall  specify the terms of
redemption  (including  the place at which the Holder may obtain  payment),  the
total principal  amount to be redeemed (such principal  amount herein called the
"Redemption  Amount") and the date for redemption (the "Redemption Date"), which
date shall not be less than 90 days nor more than 120 days after the date of the
Redemption  Notice.  On the Redemption  Date, the Borrower shall pay all accrued
unpaid interest on the Convertible Note up to and including the Redemption Date,
and shall pay to the Holder a dollar amount equal to the Redemption  Amount.  In
the case of Convertible Notes called for redemption,  the conversion rights will
expire at the close of business on the Redemption Date.

     4. Conversion  Right:  The Holder of this  Convertible  Note shall have the
right,  at Holder's  option,  at any time,  to convert  all, or, in multiples of
$50,000,  any part of this  Convertible  Note into such number of fully paid and
nonassessable  shares of Common Stock as shall be provided herein. The holder of
this Convertible Note may exercise the conversion right by giving written notice
(the  "Conversion  Notice") to the  Borrower  of the  exercise of such right and
stating the name or names in which the stock  certificate or stock  certificates
for the shares of Common  Stock are to be issued  and the  address to which such
certificates  shall be delivered.  The Conversion Notice shall be accompanied by
the  Convertible  Note.  The  number of shares of  Common  Stock  that  shall be
issuable upon conversion of the Convertible  Note shall equal the face amount of
the  Convertible  Note divided by the  Conversion  Price as defined below and in
effect on the date the Conversion Notice is given;  provided,  however,  that in
the event that this Convertible Note shall have been partially redeemed,  shares
of Common  Stock shall be issued pro rata,  rounded to the nearest  whole share.
Conversion  shall be  deemed to have been  effected  on the date the  Conversion
Notice is  received  (the  "Conversion  Date").  Within 10  business  days after
receipt of the  Conversion  Notice,  Borrower  shall  issue and  deliver by hand
against a signed receipt therefor or by United States  registered  mail,  return
receipt  requested,  to the address designated in the Conversion Notice, a stock
certificate or stock  certificates  of the Borrower  representing  the number of
shares  of  Common  Stock to which  Holder  is  entitled  and a check or cash in
payment  of all  interest  accrued  and  unpaid on the  Convertible  Note  being
converted up to and including the Conversion Date. The conversion rights will be
governed by the following provisions:

     (a)  Conversion  Price:  On the issue date hereof and until such time as an
adjustment shall occur, the Conversion price shall be $0.38 per share,  provided
however,  that the Conversion Price shall be subject to adjustment at the times,
and in accordance with the provisions, as follows:

          (i)  Adjustment  for  Issuance  of Shares at less than the  Conversion
Price:  If and whenever any Additional  Common Stock (as herein  defined) shares
shall be issued by the Borrower (the "Stock Issue Date") for a consideration per
share  less  than the  Conversion  Price,  then in each  such  case the  initial
Conversion  Price shall be reduced to a new Conversion  Price in an amount equal
to the  consideration  per share  received by the  Borrower  for the  additional

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                                     Page 2

                                                     Issuer's Initial __________
<PAGE>

shares of Common  Stock then issued and the number of shares  issuable to Holder
upon conversion shall be proportionately  increased;  and, in the case of shares
issued without  consideration,  the initial Conversion Price shall be reduced in
amount and the number of shares issued upon conversion  shall be increased in an
amount so as to  maintain  for the Holder the right to convert  the  Convertible
Note into shares equal in amount to the same  percentage  interest in the Common
Stock of the Borrower as existed for the Holder immediately  preceding the Stock
Issue Date.

          (ii) Sale of Shares:  In case of the  issuance  of  Additional  Common
Stock for a consideration  part or all of which shall be cash, the amount of the
cash  consideration  therefor  shall  be  deemed  to be the  amount  of the cash
received by Borrower for such shares,  after any compensation or discount in the
sale,  underwriting  or purchase  thereof by  underwriters  or dealers or others
performing   similar  services  or  for  any  expenses  incurred  in  connection
therewith.  In case of the issuance of any shares of Additional Common Stock for
a consideration part or all of which shall be other than cash, the amount of the
consideration  therefor,  other than  cash,  shall be deemed to be the then fair
market value of the property  received as determined  by an  investment  banking
firm selected by Lender.

          (iii)  Reclassification of Shares: In case of the  reclassification of
securities  into shares of Common  Stock,  the shares of Common  Stock issued in
such  reclassification  shall be deemed to have been issued for a  consideration
other than cash.  Shares of Additional Common Stock issued by way of dividend or
other distribution on any class of stock of the Borrower shall be deemed to have
been issued without consideration.

          (iv) Split up or Combination of Shares: In case issued and outstanding
shares of Common Stock shall be subdivided or split up into a greater  number of
shares of the  Common  Stock,  the  Conversion  Price  shall be  proportionately
decreased,  and in case issued and  outstanding  shares of Common Stock shall be
combined into a smaller number of shares of Common Stock,  the Conversion  Price
shall be proportionately  increased,  such increase or decrease, as the case may
be, becoming effective at the time of record of the split-up or combination,  as
the case may be.

          (v) Exceptions:  The term "Additional  Common Stock" herein shall mean
in the most broadest  sense all shares of Common Stock  hereafter  issued by the
Borrower (including, but not limited to Common Stock held in the treasury of the
Borrower and common stock  purchasable via derivative  security or option on the
date of such grant),  except  Common Stock issued upon the  conversion of any of
this Convertible Note or Warrant.

     (b) Adjustment for Mergers, Consolidations, Etc.:

          (i) In the event of  distribution  to all Common Stock  holders of any
stock,  indebtedness  of the  Borrower or assets  (excluding  cash  dividends or
distributions from retained earnings) or other rights to purchase  securities or
assets,  then, after such event, the Convertible  Notes will be convertible into
the kind and amount of  securities,  cash and other property which the holder of
the  Convertible  Notes would have been  entitled to receive if the holder owned
the Common Stock issuable upon conversion of the Convertible  Notes  immediately
prior to the occurrence of such event.

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                                     Page 3

                                                     Issuer's Initial __________
<PAGE>

          (ii) In case of any capital  reorganization,  reclassification  of the
stock of the  Borrower  (other  than a change  in par  value or as a result of a
stock  dividend,   subdivision,   split  up  or  combination  of  shares),  this
Convertible  Note  shall be  convertible  into the kind and  number of shares of
stock or other securities or property of the Borrower to which the holder of the
Convertible  Note would have been  entitled  to receive if the holder  owned the
Common Stock issuable upon conversion of the Convertible Note immediately  prior
to the  occurrence of such event.  The  provisions of these  foregoing  sentence
shall   similarly  apply  to  successive   reorganizations,   reclassifications,
consolidations,  exchanges,  leases,  transfers or other  dispositions  or other
share exchanges.

          (iii)  Notice  of  Adjustment.  (A) In the event  the  Borrower  shall
propose to take any action which shall result in an adjustment in the Conversion
Price,  the Borrower shall give notice to the holder of this  Convertible  Note,
which notice shall  specify the record date, if any, with respect to such action
and the date on which such action is to take place.  Such notice  shall be given
on or before  the  earlier of 10 days  before the record  date or the date which
such action  shall be taken.  Such notice shall also set forth all facts (to the
extent known) material to the effect of such action on the Conversion  Price and
the number,  kind or class of shares or other securities or property which shall
be deliverable or purchasable  upon the occurrence of such action or deliverable
upon conversion of this Convertible  Note. (B) Following  completion of an event
wherein the  Conversion  Price shall be adjusted,  the Borrower shall furnish to
the holder of this Convertible Note a statement, signed by an authorized officer
of the  Borrower  of the facts  creating  such  adjustment  and  specifying  the
resultant adjusted Conversion Price then in effect.

     5. Reservation of Shares: Borrower warrants and agrees that it shall at all
times  reserve  and keep  available,  free from  preemptive  rights,  sufficient
authorized  and  unissued  shares of Common Stock to effect  conversion  of this
Convertible Note.

     6. Registration  Rights:  The Holder has certain rights with respect to the
registration  of shares of  Common  Stock  issued  upon the  conversion  of this
Convertible  Note pursuant to the terms of the Loan  Agreement.  Borrower agrees
that  a  copy  of  the  Loan  Agreement  with  all   amendments,   additions  or
substitutions  therefor  shall be  available to the Holder at the offices of the
Borrower.

     7. Taxes:  The Borrower shall pay any  documentary  or other  transactional
taxes  attributable to the issuance or delivery of this  Convertible Note or the
shares of Common  Stock  issued upon  conversion  by the Holder  (excluding  any
federal,  state or local income taxes and any  franchise  taxes or taxes imposed
upon the Holder by the jurisdiction, or any political subdivision thereof, under
which such Holder is organized or is qualified to do business.)

     8. Default:

     (a) Event of Default:  An "Event of Default" shall exist if any one or more
of the following events (herein  collectively  called "Events of Default") shall
occur and be continuing:

          (i) Borrower shall fail to pay (or shall state in writing an intention
not to pay or its inability to pay),  not later than 10 days after the due date,
any installment of interest on or principal of, any Convertible Note or any fee,
expense or other payment required hereunder;

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                                     Page 4

                                                     Issuer's Initial __________
<PAGE>

          (ii) Any of events stated in Section 7 of the Loan Agreement.

     (b)  Remedies  Upon Event of  Default:  If an Event of  Default  shall have
occurred  and be  continuing,  then Lender may  exercise  any one or more of the
following  rights and remedies,  and any other  remedies  provided in any of the
Loan  Documents,  as  Lender  in its  sole  discretion,  may deem  necessary  or
appropriate:

          (i) declare the unpaid  Principal  Amount  (after  application  of any
payments or  installments  received by Lender) of, and all interest then accrued
but unpaid on, the Convertible Notes and any other  liabilities  hereunder to be
forthwith  due and payable,  whereupon the same shall  forthwith  become due and
payable  without  presentment,  demand,  protest,  notice of default,  notice of
acceleration  or of intention to accelerate or other notice of any kind,  all of
which Borrower hereby expressly waives.

          (ii) reduce any claim to judgment, and/or

          (iii) without  notice of default or demand,  pursue and enforce any of
Lender's  rights and remedies under the Loan  Documents,  or otherwise  provided
under or pursuant to any applicable law or agreement, all of which rights may be
specifically enforced.

     (c) Remedies Nonexclusive: Each right, power or remedy of the holder hereof
upon the occurrence of any Event of Default as provided for in this Convertible
Note or now or hereafter existing at law or in equity or by statute shall be
cumulative and concurrent and shall be in addition to every other right, power
or remedy provided for in this Convertible Note or now or hereafter existing at
law or in equity or by statute, and the exercise or beginning of the exercise by
the holder or transferee hereof of any one or more of such rights, powers or
remedies shall not preclude the simultaneous or later exercise by the holder of
any or all such other rights, powers or remedies.

     (d)  Expenses:  Upon the  occurrence  of a Default or an Event of  Default,
which  occurrence  is not cured  within the notice  provisions,  if any provided
therefore,  Borrower  agrees  to pay  and  shall  pay  all  costs  and  expenses
(including Lenders attorney's fees and expenses)  reasonably  incurred by Lender
in connection with the preservation and enforcement of Lender's rights under the
Loan Agreement, the Convertible Notes, or any other Loan Document.

     9. Failure to Act and Waiver:  No failure or delay by the holder  hereof to
require the performance of any term or terms of this  Convertible Note or not to
exercise any right, or any remedy shall  constitute a waiver of any such term or
of any right or of any  default,  nor shall such delay or failure  preclude  the
holder hereof from exercising any such right,  power or remedy at any later time
or times.  By accepting  payment after the due date of any amount  payable under
this Convertible  Note, the holder hereof shall not be deemed to waive the right
either to require  payment when due of all other  amounts  payable,  or to later
declare a default for failure to effect such  payment of any such other  amount.
The failure of the holder of this Convertible Note to give notice of any failure
or breach of the Borrower  under this  Convertible  Note shall not  constitute a
waiver of any right or remedy in respect of such continuing failure or breach or
any subsequent failure or breach.

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                                     Page 5

                                                     Issuer's Initial __________
<PAGE>

     10. Consent to  Jurisdiction:  The Borrower hereby agrees and consents that
any  action,  suit or  proceeding  arising out of this  Convertible  Note may be
brought  in any  appropriate  court in the State of Texas  including  the United
States District Court for the Northern  District of Texas, or in any other court
having  jurisdiction  over the subject  matter,  all at the sole election of the
holder hereof,  and by the issuance and execution of this  Convertible  Note the
Borrower irrevocably consents to the jurisdiction of each such court.

     11. Holders Right to Request Multiple  Convertible Notes: The Holder shall,
upon written request and  presentation of the Convertible  Note, have the right,
at any interest  payment date, to request division of this Convertible Note into
two or more  units,  each of such to be in such  amounts as shall be  requested;
provided  however that no Convertible  Notes shall be issued in denominations of
face amount less than $50,000.00.

     12. Transfer:  This Convertible Note may be transferred on the books of the
Borrower  by  the  registered  Holder  hereof,  or  by  Holder's  attorney  duly
authorized in writing, only upon (i) delivery to the Borrower of a duly executed
assignment of the Convertible Note, or part thereof, to the proposed new Holder,
along  with a current  notation  of the  amount  of  payments  received  and net
Principal  Amount yet unfunded,  and presentment of such Convertible Note to the
Borrower for issue of a replacement  Convertible Note, or Convertible  Notes, in
the  name of the new  Holder,  (ii) the  designation  by the new  Holder  of the
Lender's  agent for  notice,  such agent to be the sole  party to whom  Borrower
shall be required to provide notice when notice to Lender is required  hereunder
and who shall be the sole  party  authorized  to  represent  Lender in regard to
modification or waivers under the Convertible Note, the Loan Agreement, or other
Loan Documents;  and any action,  consent or waiver, (other than a compromise of
principal and interest), when given or taken by Lender's agent for notice, shall
be  deemed  to be the  action  of the  holders  of a  majority  in amount of the
Principal  Amount of the Convertible  Notes, as such holders are recorded on the
books of the  Borrower,  and (iii) in  compliance  with the  legend to read "The
Securities  represented by this  Convertible Note have not been registered under
the Securities Act of 1933, as amended  ("Act"),  or applicable state securities
laws ("State  Acts") and shall not be sold,  hypothecated,  donated or otherwise
transferred  unless the Borrower shall have received an opinion of Legal Counsel
for the Borrower, or such other evidence as may be satisfactory to Legal Counsel
for the  Borrower,  to the  effect  that any such  transfer  shall  not  require
registration under the Act and the State Acts."

The Borrower shall be entitled to treat any holder of record of the  Convertible
Note as the Holder in fact thereof and of the Convertible  Note and shall not be
bound  to  recognize  any  equitable  or  other  claim  to or  interest  in this
Convertible  Note in the name of any other person,  whether or not it shall have
express or other  notice  thereof,  save as  expressly  provided  by the laws of
Texas.

     13. Notices:  All notices and  communications  under this  Convertible Note
shall be in  writing  and shall be either  delivered  in person or by  overnight
delivery and  accompanied by a signed receipt  therefor;  or mailed  first-class
United States certified mail,  return receipt  requested,  postage prepaid,  and
addressed as follows: (i) if to the Borrower at its address for notice as stated
in the Loan Agreement;  and, (ii) if to the holder of this Convertible  Note, to
the address (a) of such  holder as it appears on the books of the  Borrower,  or
(b) in the case of a partial assignment to one or more holders,  to the Lender's
agent for  notice,  as the case may be.  Any  notice of  communication  shall be

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                                     Page 6

                                                     Issuer's Initial __________
<PAGE>

deemed given and received as of the date of such  delivery if  delivered;  or if
mailed, then three days after the date of mailing.

     14. Maximum  Interest Rate:  Regardless of any provision  contained in this
Convertible Note, Lender shall never be entitled to receive, collect or apply as
interest on the Convertible Note any amount in excess of interest  calculated at
the Maximum  Rate,  and, in the event that  Lender  ever  receives,  collects or
applies as  interest  any such  excess,  the  amount  which  would be  excessive
interest  shall be deemed to be a partial  prepayment  of principal  and treated
hereunder as such; and, if the principal  amount of the Convertible Note is paid
in  full,  any  remaining  excess  shall  forthwith  be  paid  to  Borrower.  In
determining  whether  or not the  interest  paid or payable  under any  specific
contingency exceeds interest calculated at the Maximum Rate, Borrower and Lender
shall, to the maximum extent  permitted under  applicable law, (i)  characterize
any non principal payment as an expense, fee or premium rather than as interest;
(ii) exclude voluntary  prepayments and the effects thereof, and (iii) amortize,
pro rate,  allocate  and spread,  in equal  parts,  the total amount of interest
throughout the entire  contemplated term of the Convertible Note; provided that,
if the  Convertible  Note is paid and  performed in full prior to the end of the
full  contemplated  term  thereof,  and if the interest  received for the actual
period of existence  thereof  exceeds  interest  calculated at the Maximum Rate,
Lender  shall  refund to Borrower the amount of such excess or credit the amount
of such excess against the principal amount of the Convertible Note and, in such
event,  Lender  shall not be subject to any  penalties  provided by any laws for
contracting for, charging,  taking, reserving or receiving interest in excess of
interest calculated at the Maximum Rate.

     "Maximum  Rate" shall mean, on any day, the less of (i) 18% or (ii) highest
nonusurious  rate of interest (if any)  permitted by applicable  law on such day
that at any time, or from time to time, may be contracted for, taken,  reserved,
charged or received on the Indebtedness  evidenced by the Convertible Note under
the laws which are  presently in effect of the United  States of America and the
State  of Texas or by the laws of any  other  jurisdiction  which  are or may be
applicable to the holders of the Convertible  Note and such  Indebtedness or, to
the extent  permitted by law, under such applicable laws of the United States of
America  and the State of Texas or by the laws of any other  jurisdiction  which
are or may be  applicable  to the holder of the  Convertible  Note and which may
hereafter  be in effect and which allow a higher  maximum  nonusurious  interest
rate than applicable laws now allow.

     15. Rights under Loan Agreement:  This  Convertible Note is issued pursuant
to that certain Loan Agreement originally dated April__, 2002 by and between the
Lender and Borrower (the "Loan Agreement"), and the holder hereof is entitled to
all the rights and  benefits,  and is subject to all the  obligations  of Lender
under said  agreement.  Both  Borrower  and  Lenders  have  participated  in the
negotiation and preparation of the Loan Agreement and of this Convertible  Note.
Borrower agrees that a copy of the Loan Agreement with all amendments, additions
and  substitutions  therefore shall be available to the Holder at the offices of
the Borrower.  This Convertible Note is secured pursuant to a security agreement
dated April __, 2002

     16. Governing Law: This Convertible Note shall be governed by and construed
and  enforced  in  accordance  with the laws of the  State of Texas,  or,  where
applicable,  the  laws  of  the  United  States.  There  are no  unwritten  oral
agreements between the parties.

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                                     Page 7

                                                     Issuer's Initial __________
<PAGE>

     IN WITNESS  WHEREOF,  the undersigned  Borrower has caused this Convertible
Note to be duly issued and executed on the Date of Issue as stated above.

Address for Notice:                             BPK Resources, Inc.
-------------------

One Belmont Ave
GSB Building, Suite 417                         By: /s/ Cecile Coady
                                                   -----------------
Bala Cynwyd, PA 19004                              Cecile Coady
Attn. Steve Harrington                             Title:
Ph. 610 660 5906
Fax. 610 660 5905                               Attest

                                                By:
                                                   ---------------------------
                                                   Name:
                                                   Secretary

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                                     Page 8

                                                     Issuer's Initial __________Exhibit 10.21
                                                                   -------------

                        FIRST AMENDED SECURITY AGREEMENT

Date:    Originally dated April 2002 and amended July 29, 2003

Debtor:  BPK Resources, Inc. (f/k/a Bepariko Biocom), a Nevada corporation

Debtor's Mailing Address:  One Belmont Ave, GSB Building, Suite 417 Bala Cynwyd,
                           PA 19004

Secured Party:   Trident Growth Fund, L.P (f/ka Gemini Growth Fund, L.P.)

Secured Party's Mailing Address:   700 Gemini, Houston, TX 77058

Classification of Collateral:  Accounts,  contract rights, property,  equipment,
inventory,  general intangibles,  instruments,  deposit accounts, chattel paper,
leases, mineral right and all other assets.

Collateral  (including all accessions):  Accounts,  contract  rights,  property,
equipment,  inventory,  general  intangibles,   instruments,  deposit  accounts,
chattel paper, leases, mineral rights and all other assets.

     a)   All  attachments,   accessions  accessories,  tools,  parts  supplies,
          increases,  and additions to and all replacements of and substitutions
          for any property described above.

     b)   All  products  and produce of any of the  property  described  in this
          Collateral section.

     c)   All accounts,  contracts  rights,  general  intangibles,  intellectual
          property,  instruments, rents, monies, payments, and all other rights,
          arising  out of a sale,  lease,  or  other  disposition  of any of the
          property described in this Collateral section.

     d)   All   proceeds   (including   insurance   proceeds)   from  the  sale,
          destruction,  loss,  or  other  deposition  of  any  of  the  property
          described in this Collateral section.

Obligation:  Convertible Note and any, and all other  indebtedness,  liabilities
and  obligations  of the Debtor to the  Secured  Party now owing or  hereinafter
incurred.

     Date:         April 2002 and July 29, 2003

     Amount:       $2,100,000

     Maker:        BPK Resources, Inc.

     Payee:        Trident Growth Fund, LP

     Final Maturity Date: As provided therein

     Terms of Payment (optional): As provided therein

Debtor grants to Secured Party a security interest in the Collateral and all its
proceeds  to secure  payment and  performance  of  Debtor's  obligation  and all
renewals and extensions of any of the obligation.

Debtor's Warranties:

1.   Ownership.  Debtor owns the  collateral and has the authority to grant this
     security interest.

<PAGE>

2.   Fixtures and Accessions.  None of the collateral is affixed to real estate,
     is an  accession to any goods,  is  commingled  with other  goods,  or will
     become a fixture,  accession, or part of a product or mass with other goods
     except as expressly provided in this agreement.

3.   Financial  Statements.  All information about Debtor's financial  condition
     provided  to Secured  Party was  accurate  when  submitted,  as will be any
     information subsequently provided.

Debtor's Covenants:

1.   Protection of  Collateral.  Debtor will defend the  collateral  against all
     claims and demands adverse to Secured Party's  interest in it and will keep
     it free  from all  liens  except  those  for taxes not yet due and from all
     security  interests except this one. The collateral will remain in Debtor's
     possession  or control at all times,  except as otherwise  provided in this
     agreement.  Debtor will  maintain  the  collateral  in good  condition  and
     protect  it  against  misuse,  abuse,  waste and  deterioration  except for
     ordinary wear and tear resulting from its intended use.

4.   Secured  Party's  Costs.  Debtor will pay all expenses  incurred by Secured
     Party in obtaining,  preserving,  perfecting,  defending and enforcing this
     security  interest or the  collateral  and in  collecting  or enforcing the
     Obligation.  Expenses  for  which  Debtor is  liable  include,  but are not
     limited to, taxes, assessments, reasonable attorney's fees, and other legal
     expenses.  These  expenses will bear interest from the dates of payments at
     the  highest  rate  stated in notes  that are part of the  obligation,  and
     Debtor will pay Secured  Party this  interest on demand at a time and place
     reasonably  specified by Secured Party. These expenses and interest will be
     part of the obligation and will be recovered as such in all respects.

5.   Additional  Documents.  Debtor  will sign any  papers  that  Secured  Party
     considers necessary to obtain, maintain, and perfect this security interest
     or to comply with any relevant law.

6.   Notice of Changes.  Debtor will  immediately  notify  Secured  Party of any
     material  change in the  collateral  other than in the  ordinary  course of
     business;  change in Debtor's  name,  address,  or location;  change in any
     matter  warranted or represented in this agreement;  change that may affect
     this security interest; and any event of default.

7.   Use and Removal of  Collateral.  Debtor will use the  collateral  primarily
     according  to the  stated  classification  unless  Secured  Party  consents
     otherwise in writing.  Debtor will not permit the  collateral to be affixed
     to any real estate,  to become an accession to any goods,  to be commingled
     with other goods, or to become a fixture,  accession,  or part of a product
     or mass with other goods except as expressly  provided in this agreement or
     in the ordinary course of business.

8.   Sale.  Debtor will not sell,  transfer,  or encumber any of the  collateral
     without  the prior  written  consent  of  Secured  Party  other than in the
     ordinary course of business.

9.   If  requested  by Secured  Party,  debtor will  receive and use  reasonable
     diligence to collect all  accounts,  accounts  receivable,  chattel  paper,
     instruments, documents and general intangibles, deposit accounts, in trust,
     and to be held as property of the Secured Party, and to immediately endorse
     as  appropriate  and deliver such rights to payment and proceeds to Secured
     Party daily in the exact form in which they are  received  together  with a
     collection report in a form satisfactory to Secured Party.

10.  Debtor  agrees  not  to  commingle  the  rights  to  payment,  proceeds  or
     collections thereunder with other property.

<PAGE>

11.  Debtor agrees,  with regard to the  collateral  and proceeds,  from time to
     time when  reasonably  requested by Secured Party, to prepare and deliver a
     schedule of all  collateral  and proceeds  subject to this agreement and to
     assign in writing and  deliver to secured  party all  accounts,  contracts,
     leases and other chattel paper, instruments,  documents and other evidences
     thereof.

12.  Debtor  agrees  with  regard to the  collateral  and  proceeds in the event
     secured  party elects to receive  payments of rights to payment or proceeds
     hereunder,  to pay all  reasonable  expenses  incurred by secured  party in
     connection   therewith,   including   reasonable  expenses  of  accounting,
     correspondence,  collection  efforts,  reporting  to  account  or  contract
     debtors, filing, recording, record keeping and expenses incidental thereto.

Rights and Remedies of Secured Party:

1.   Generally.  Secured  Party may exercise the  following  rights and remedies
     after default:

     a)   take control of any proceeds of the collateral;

     b)   release any  collateral in Secured  Party's  possession to any debtor,
          temporarily or otherwise;

     c)   take control of any funds generated by the collateral, such as refunds
          from and proceeds of insurance,  and reduce any part of the obligation
          accordingly  or permit  Debtor to use such  funds to repair or replace
          damaged or destroyed collateral covered by insurance; and

     d)   demand, collect,  convert,  redeem, settle,  compromise,  receipt for,
          realize on, adjust, sue for, and foreclose on the collateral either in
          Secured Party's Debtor's name, as Secured Party desires.

Events of Default:  Each of the  following  conditions is an Event of Default if
not cured within an  applicable  cure or grace period under any Loan Document by
and between Secured Party and Debtor:

1.   if Debtor  defaults in timely  payment or  performance  of any  obligation,
     covenant,  or liability in any written agreement between Debtor and Secured
     Party or in any other transaction secured by this agreement;

2.   if any warranty,  covenant or representation made to Secured Party by or on
     behalf of Debtor  proves to have been false in any  material  respect  when
     made;

3.   if a receiver is appointed for Debtor or any of the collateral;

4.   if the  collateral  is  assigned  for the benefit of  creditors  or, to the
     extent permitted by law, if bankruptcy or insolvency  proceedings  commence
     against or by any of these parties: Debtor; any partnership of which Debtor
     is a general partner; and any maker, drawer, acceptor, endorser, guarantor,
     surety,  accommodation  party, or other person liable on or for any part of
     the obligation;

5.   if any financing statement regarding the collateral but not related to this
     security and not favoring Secured Party is filed;

6.   if any lien attaches to any of the collateral;

7.   if any material  amount of the  collateral  is lost,  stolen,  damaged,  or
     destroyed,  unless it is promptly  replaced with collateral of like quality
     or restored to its former condition.

<PAGE>

8.   Secured party reasonably by and in good faith,  believes that any or all of
     the  collateral  and/or  proceeds  to be  danger  of  misuse,  dissipation,
     commingling,  loss, theft, damage or destruction,  or otherwise in jeopardy
     or unsatisfactory in character or value.

Remedies of Secured Party on Default:

1.   During the existence of any event of default, Secured Party may declare the
     unpaid  principal and earned interest of the obligation  immediately due in
     whole or part, enforce the obligation, and exercise any rights and remedies
     granted by the Uniform Commercial Code or by this agreement,  including the
     following:

     a)   require  Debtor to  deliver  to  Secured  Party all books and  records
          relating to the collateral;

     b)   require  Debtor to assemble  the  collateral  and make it available to
          Secured Party at a place reasonably convenient to both parties;

     c)   take  possession of any of the  collateral  and for this purpose enter
          any premises where it is located if this can be done without breach of
          the peace;

     d)   sell,  lease, or otherwise  dispose of any of the collateral in accord
          with the  rights,  remedies,  and  duties  of a  secured  party  under
          chapters 2 and 9 of the Texas Uniform  Commercial Code after notice as
          required by those chapters; unless the collateral threatens to decline
          speedily in value,  is  perishable,  or would  typically  be sold on a
          recognized market, Secured Party will give Debtor reasonable notice of
          any public sale of the  collateral  or of a time after which it may be
          otherwise disposed of without further notice to Debtor; in this event,
          notice will be deemed reasonable if it is mailed,  postage prepaid, to
          Debtor at the address  specified  in this  agreement at least ten days
          before any public sale or ten days before the time when the collateral
          may be otherwise disposed of without further notice to Debtor; in this
          event,  notice  will be deemed  reasonable  if it is  mailed,  postage
          prepaid, to Debtor at the address specified in this agreement at least
          ten days before any private sale or ten days before any public sale or
          ten days before time when the collateral may be otherwise  disposed of
          without further notice to Debtor;

     e)   surrender any insurance  policies  covering the collateral and receive
          the unearned premium;

     f)   apply any proceeds from disposition of the collateral after default in
          the manner  specified  in chapter 9 of the  Uniform  Commercial  Code,
          including  payment of Secured Party's  reasonable  attorney's fees and
          court expenses; and

     g)   if disposition of the  collateral  leaves the obligation  unsatisfied,
          collect the deficiency from Debtor.

General Provisions

1.   Parties Bound.  Secured  Party's rights under this agreement shall inure to
     the benefit of its  successors  and assigns.  Assignment of any part of the
     obligation and delivery by Secured Party of any part of the collateral will
     fully  discharge  Secured  Party from  responsibility  for that part of the
     collateral.  If  Debtor  is  more  than  one,  all  their  representations,
     warranties,  and  agreements  are joint and several.  Debtor's  obligations
     under  this  agreement  shall  bind  Debtor's   personal   representatives,
     successors, and assigns.

<PAGE>

2.   Waiver.  Neither  delay in  exercise  nor  partial  exercise of any Secured
     Party's  remedies or rights shall waive further  exercise of those remedies
     or rights.  Secured Party's failure to exercise remedies or rights does not
     waive  subsequent  exercise of those  remedies or rights.  Secured  Party's
     waiver of any  default  does not waive  further  default.  Secured  Party's
     waiver of any right in this  agreement or of any default is binding only if
     it is in writing. Secured Party may remedy any default without waiving it.

3.   Reimbursement.  If Debtor  fails to perform  any of  Debtor's  obligations,
     Secured Party may perform those  obligations and be reimbursed by Debtor on
     demand  at the  place  where  the  note is  payable  for any  sums so paid,
     including attorney's fees and other legal expenses,  plus interest on those
     sums from the dates of payment at the rate stated in the note for  matured,
     unpaid amounts.  The sum to be reimbursed shall be secured by this security
     agreement.

4.   Interest Rate.  Interest  included in the  obligation  shall not exceed the
     maximum  amount of nonusers  interest  that may be contracted  for,  taken,
     reserved,  charged,  or received  under law; any interest in excess of that
     maximum  amount shall be credited to the principal of the obligation or, if
     that has been paid, refunded.  On any acceleration or required or permitted
     prepayment   of  the   obligation,   any  such  excess  shall  be  canceled
     automatically  as of the  acceleration  or prepayment  or, if already paid,
     credited on the  principal  amount of the  obligation  or, if the principal
     amount has been paid or refunded. This provision overrides other provisions
     in this and all other instruments concerning the obligation.

5.   Modifications. No provisions of this agreement shall be modified or limited
     except by written agreement.

6.   Severability.  The unenforceability of any provision of this agreement will
     not effect the enforceability or validity of any other provision.

7.   After-Acquired  Consumer  Goods.  This  security  interest  shall attach to
     after-acquired consumer goods only to the extent permitted by law.

8.   Applicable Law. This agreement will be construed according to Texas laws.

9.   Place of  Performance.  This  agreement is to be performed in the county of
     Secured Party's mailing address.

10.  Financing Statement. A carbon, photographic,  or other reproduction of this
     agreement or any financing  statement covering the collateral is sufficient
     as a financing statement.

11.  Presumption of Truth and Validity. If the collateral is sold after default,
     recitals  in the bill of sale or transfer  will be prima facie  evidence of
     their truth, and all  prerequisites to the sale specified by this agreement
     and by the Texas Uniform Commercial Code will be presumed satisfied.

12.  Singular and Plural. When the context requires, singular nouns and pronouns
     include the plural.

13.  Priority of Security Interest.  Neither extensions of any of the obligation
     nor releases of any of the collateral  will affect the priority of validity
     of this security interest with reference to any third person.

<PAGE>

14.  Cumulative Remedies. Foreclosure of this security interest by suit does not
     limit secured Party's remedies,  including the right to sell the collateral
     under the terms of this  agreement.  All  remedies of Secured  Party may be
     exercised at the same or different  times, and no remedy shall be a defense
     to any other. Secured Party's rights and remedies include all those granted
     by law or otherwise, in addition to those specified in this agreement.

15.  Agency.  Debtor's appointment of Secured Party as Debtor's agent is coupled
     with an interest and will survive any disability of Debtor.

16.  Attachments Incorporated.  The addendum indicated below is attached to this
     agreement and incorporated into it for all purposes:

     a)   ( ) addendum  relating  to  accounts,  inventory,  documents,  chattel
              paper, and general intangibles

     b)   ( ) addendum relating to instruments

Secured Party

By: /s/ Scott Cook
    --------------------

Debtor:

BPK Resources, Inc.

By: /s/ Cecile Coady
    --------------------
     Cecile Coady
     Title:

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