Document:

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                                                                   EXHIBIT 10.21

                                PROMISSORY NOTE

$1,300,000                                                        April 26, 2001

     FOR VALUE RECEIVED, Tucows Inc., a Delaware corporation ("Tucows"), hereby
promises to pay to the order of Infonautics, Inc., a Pennsylvania corporation
(the "Holder"), the amount of U.S. ONE MILLION THREE HUNDRED THOUSAND DOLLARS
($1,300,000) or such lesser amount as shall equal the unpaid principal amount
extended by the Holder to Tucows together with interest thereon at an interest
rate of 8% per annum.

     Tucows shall repay the principal sum and interest in full on August 31,
2001. This Note may be prepaid in whole or in part at any time and from time to
time without premium or penalty.

     Payment received hereunder shall be applied first to the payment of
interest and then to the payment of principal, unless otherwise agreed by the
Holder.

     Both principal and interest payments shall be made in lawful money of the
United States at the business office of the Holder, or at such other place as
the Holder may from time to time direct.

     Upon an Event of Default (as defined below) hereunder, the principal sum
hereunder and all interest then accrued shall be immediately due and payable
without notice to or demand on Tucows, and interest accruing hereunder shall be
calculated at an interest rate of 9% per annum. An Event of Default shall
include:

          (i) the failure by Tucows to make any payment of principal or interest
     hereunder, which failure shall continue ten days after notice thereof
     provided by the Holder;

          (ii) the failure by Tucows to make any other payment required hereby,
     which failure shall continue ten days after notice thereof provided by the
     Holder;

          (iii) the admission in writing by Tucows of its inability to pay its
     debts as they become due;

          (iv) the making by Tucows of a general assignment for the benefit of
     creditors;

          (v) the institution by or against Tucows of any proceedings seeking
     the appointment of a trustee, receiver, custodian or liquidator for itself
     or a substantial

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     part of its property, or seeking its liquidation, reorganization,
     dissolution or winding-up or the composition or readjustment of its debts,
     or seeking similar relief under any law relating to bankruptcy, insolvency,
     reorganization, winding-up or composition or adjustment of debts; provided,
     however, if any such proceedings are instituted against Tucows, such
     proceedings shall have remained undismissed, or an order, judgment or
     decree approving or ordering any of the foregoing shall be entered and
     continue unstayed and in effect, for a period of 60 or more days; or

          (vi) the termination of the Agreement and Plan of Merger dated as of
     March 27, 2001, by and among Infonautics, Inc., Tucows Inc. and TAC
     Acquisition Corp (the "Merger Agreement").

     This Note may be assigned by the Holder at any time.

     In addition to and not in limitation of the foregoing, Tucows further
agrees, subject only to any limitation imposed by applicable law, to pay all
expenses, including reasonable attorneys' fees and legal expenses, incurred by
the holder of this Note in endeavoring to collect any amounts payable hereunder
which are not paid when due.

     Presentment for payment, demand, protest, dishonor and notice of dishonor
are hereby waived.

     THE FOLLOWING SETS FORTH A WARRANT OF AUTHORITY FOR ANY ATTORNEY TO CONFESS
JUDGMENT AGAINST THE UNDERSIGNED. IN GRANTING THIS WARRANT OF ATTORNEY TO
CONFESS JUDGMENT AGAINST THE UNDERSIGNED, THE UNDERSIGNED, FOLLOWING
CONSULTATION WITH (OR DECISION NOT TO CONSULT) SEPARATE COUNSEL FOR THE
UNDERSIGNED AND WITH KNOWLEDGE OF THE LEGAL EFFECT HEREOF, HEREBY WAIVES ANY AND
ALL RIGHTS THE UNDERSIGNED HAS OR MAY HAVE TO PRIOR NOTICE AND AN OPPORTUNITY
FOR HEARING UNDER THE CONSTITUTIONS AND LAWS OF THE UNITED STATES AND THE STATE
OF DELAWARE. IT IS SPECIFICALLY ACKNOWLEDGED THAT THE HOLDER HAS RELIED ON THIS
WARRANT OF ATTORNEY IN GRANTING THE FINANCIAL ACCOMMODATIONS DESCRIBED HEREIN.

     THE UNDERSIGNED HEREBY EMPOWERS ANY PROTHONOTARY, CLERK OF COURT OR
ATTORNEY OF ANY COURT OF RECORD TO APPEAR FOR THE UNDERSIGNED IN ANY AND ALL
ACTIONS WHICH MAY BE BROUGHT HEREUNDER, AND CONFESS JUDGMENT AGAINST UNDERSIGNED
FOR ALL OR ANY PART OF THE UNPAID PRINCIPAL BALANCE HEREUNDER AND ACCRUED
INTEREST, TOGETHER WITH OTHER REASONABLE OUT OF POCKET EXPENSES INCURRED IN
CONNECTION THEREWITH AND REASONABLE OUT OF POCKET ATTORNEYS' FEES AND FOR SUCH
PURPOSE THE ORIGINAL OR ANY PHOTOCOPY OF THIS NOTE SHALL BE A GOOD AND
SUFFICIENT WARRANT OF ATTORNEY. SUCH AUTHORIZATION SHALL NOT BE EXHAUSTED BY ONE
EXERCISE THEREOF,

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BUT JUDGMENT MAY BE CONFESSED AS AFORESAID FROM TIME TO TIME. THE UNDERSIGNED
HEREBY WAIVES ALL ERRORS AND RIGHTS OF APPEAL AS WELL AS RIGHTS TO STAY OF
EXECUTION AND EXEMPTION OF PROPERTY IN ANY ACTION TO ENFORCE ITS LIABILITY
HEREON.

     The parties intend that this Note shall be governed by and construed in
accordance with the substantive laws of the State of Delaware without regard to
principles of conflicts of laws or choice of law.

     In the event the Merger Agreement is terminated and, in accordance with the
terms thereof, Infonautics, Inc. is, at the time of termination of the Merger
Agreement, obligated to pay a termination fee to Tucows, then from the date such
termination fee is payable, the aggregate amount due to Holder under this Note
shall be reduced by the amount of such termination fee.

     ALL PARTIES HEREBY MUTUALLY AND RECIPROCALLY WAIVE ANY RIGHT TO A JURY
TRIAL IN ANY PROCEEDING HEREON OR RELATED HERETO.

     IN WITNESS WHEREOF, Tucows has caused the due execution hereof on the day
and year first above written.

                                    TUCOWS INC.
     Attest:

                                    By: /s/ Elliot Noss
    ------------------------            ---------------
    Title: Secretary                Title: President & Chief Executive Officer

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                               SECURITY AGREEMENT

     SECURITY AGREEMENT, dated as of April 26, 2001, made by TUCOWS INC., a
Delaware corporation (the "Obligor") in favor of Infonautics, Inc. a
Pennsylvania corporation, (the, "Secured Party" or the "Company").

                              W I T N E S S E T H:
                              --------------------

     WHEREAS, pursuant to the terms of the Promissory Note dated as of the date
hereof by and among the Company and the Obligor (the "Note"), the Company has
agreed to make a loan (the "Loan") to or for the benefit of the Obligor; and

     WHEREAS, it is a condition precedent to the obligation of the Company to
make the Loan to the Obligor under the Note that the Obligor shall have executed
and delivered this Security Agreement to the Company;

     NOW, THEREFORE, in consideration of the premises and to induce the Company
to enter into the Note and to make the Loan contemplated thereby, the Obligor
hereby agrees with the Company, as follows:

     SECTION 1. GRANT OF SECURITY INTEREST. Obligor hereby grants to Secured
Party a security interest in the following property, whether now owned or
hereafter arising or acquired (collectively, the "Collateral"):

     (a) all of Obligor's accounts, general intangibles, chattel paper, and
instruments (collectively, the "Receivables");

     (b) all of Obligor's inventory and documents;

     (c) all of Obligor's equipment (whether or not constituting fixtures)
including, without limitation, machinery, vehicles, computer hardware, computer
software and systems and furniture;

     (d) all of Obligor's financial assets and investment property; and

     (e) all proceeds and products of any of the foregoing, including insurance
payable by reason of loss or damage.

     Obligor represents and warrants that it is the sole owner of the Collateral
and has the legal right to grant to Secured Party a security interest therein,
and that the Collateral is free and clear of all other liens, security interests
and encumbrances.

     SECTION 2. SECURITY FOR LIABILITIES. This Agreement secures the payment and
performance of all indebtedness, obligations, and liabilities evidenced by or
payable pursuant to the Note or this Agreement (collectively, the
"Liabilities").

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     SECTION 3. OBLIGOR REMAINS LIABLE. Anything herein to the contrary
notwithstanding, (a) Obligor shall remain liable under its contracts and
agreements included in the Collateral to the extent set forth therein to perform
all of Obligor's duties and obligations thereunder to the same extent as if this
Agreement had not been executed, (b) the exercise by Secured Party of any of the
rights hereunder shall not release Obligor from any of its duties or obligations
under its contracts and agreements included in the Collateral, and (c) Secured
Party shall not have any obligation or liability under the contracts and
agreements included in the Collateral by reason of this Agreement, nor shall
Secured Party be obligated to perform any of the obligations or duties of
Obligor thereunder or to take any action to collect or enforce any claim for
payment assigned hereunder.

     SECTION 4. FURTHER ASSURANCES. (a) Obligor agrees that from time to time,
at its expense, it will promptly execute and deliver all further instruments and
documents (including without limitation those the Secured Party may deem
necessary to file with the Patent and Trademark Office or similar office), and
take all further action, that may be necessary or desirable, or that Secured
Party may request, in order to perfect and protect any security interest granted
or purported to be granted hereby (including without limitation those relating
to filings with the Patent and Trademark Office or similar office) or to enable
Secured Party to exercise and enforce its rights and remedies hereunder with
respect to any Collateral, including but not limited to, executing and filing
such financing or continuation statements, or amendments thereto, and such other
instruments or notices, as may be necessary or desirable, or as Secured Party
may request, in order to perfect and preserve the security interests granted or
purported to be granted hereby.

     (b) Obligor hereby authorizes Secured Party to file one or more financing
or continuation statements, and amendments thereto, relative to all or any part
of the Collateral without the signature of Obligor where permitted by law. A
carbon, photographic, or other reproduction of this Agreement or any part
thereof shall be sufficient as a financing statement where permitted by law.

     SECTION 5. INSURANCE. Obligor shall, at its own expense, maintain liability
and casualty insurance with respect to its business and property with
responsible and reputable insurance companies or associations satisfactory to
Secured Party in such amounts and covering such risks as are acceptable to or
specified by Secured Party, taking into account, among other factors, such
amounts and risks as are usually carried by persons engaged in similar
businesses and owning similar properties in the same general areas in which
Obligor operates.

     SECTION 6. CERTAIN COVENANTS AS TO INVENTORY AND EQUIPMENT. Obligor shall:

     (a) Keep its inventory and equipment in the places specified therefor on
Schedule 1 hereto (other than inventory sold or leased in the ordinary course of
business) or, upon 30 days' prior written notice to Secured Party, at such other
places as shall be identified in such notice and which are in jurisdictions
where all action required by Section 4 shall have been taken with respect to
such inventory and equipment.

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     (b) Cause its equipment to be maintained and preserved in the same
condition, repair, and working order as when new, ordinary wear and tear
excepted, and, in the case of any material loss or damage to any of its
equipment, as quickly as practicable after the occurrence thereof, make or cause
to be made all repairs, replacements, and other improvements in connection
therewith which are necessary or desirable to such end.

     (c) Pay promptly when due all property and other taxes, assessments, and
governmental charges or levies imposed upon it, and all claims (including claims
for labor, materials and supplies) against its inventory and equipment.

     (d) After the occurrence and during the existence of an Event of Default
(as hereinafter defined), receive in trust for the benefit of Secured Party all
amounts and proceeds received or collected by Obligor in respect of its
inventory and equipment, segregate such amounts and proceeds from other funds of
Obligor, and forthwith pay such amounts and proceeds over to Secured Party in
the same form as so received (with any necessary endorsement) to be held as cash
collateral and applied as provided in Section 14(b).

     SECTION 7. CERTAIN COVENANTS AS TO RECEIVABLES. Obligor shall:

     (a) Keep its chief place of business and chief executive office and the
offices where it keeps its records, including all computer hardware and
software, concerning its Receivables, and all originals of all chattel paper
which evidence any such Receivables at the places specified in Schedule 1 hereto
or, upon 30 days' prior written notice to Secured Party, at such other locations
as shall be identified in such notice and which are in a jurisdiction where all
action required by Section 4 shall have been taken with respect to its
Receivables. Obligor will hold and preserve such records and chattel paper and
will, upon reasonable notice, permit representatives of Secured Party at any
time during normal business hours to inspect and make abstracts from such
records and chattel paper. Obligor shall immediately endorse and deliver to
Secured Party each instrument included in the Receivables. Obligor shall
immediately notify Secured Party if any of its accounts arise out of contracts
with the United States or the federal government of Canada or any agency or
instrumentality thereof, and execute any instruments and take any steps required
by Secured Party in order that all moneys due and to become due under such
contracts shall be assigned to Secured Party and notice given to the Government
under the Federal Assignment of Claims Act (in the case of United States
contracts) and shall take all steps necessary to comply with the Financial
Administration Act (Canada) (in the case of federal government of Canada
contracts).

     (b) From time to time upon request, Obligor shall provide Secured Party
with (i) schedules describing all accounts, (ii) additional schedules describing
other receivables, and (iii) specific written assignments to Secured Party of
any of its Receivables. Any failure to execute or deliver any schedule or
assignment shall not, however, affect or limit any security interest or other
right of Secured Party in and to any Receivable. Upon Secured Party's request,
Obligor shall also furnish to Secured Party copies of invoices to customers and
shipping and delivery receipts or warehouse receipts relating thereto, as well
as such other documents and instruments as Secured Party may reasonably request
in connection with any Receivable.

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     (c) Obligor shall promptly notify Secured Party of all returns,
repossessions and recoveries of goods covered by the Receivables and of all
claims asserted with respect thereto. Each such notification shall be
accompanied by a statement describing the relevant goods and the location
thereof. Obligor shall not settle or adjust any dispute or claim, grant any
discount, credit or allowance, or accept any return of merchandise except in the
ordinary course of business. When Obligor receives collateral of any kind by
reason of transactions between itself and its customers or account debtors, it
will hold the same on Secured Party's behalf, subject to Secured Party's
instructions, as property forming part of the Receivables.

     (d) Except as otherwise provided in Section 14, Obligor shall continue to
collect, at its own expense, all amounts due or to become due to Obligor under
the Receivables. In connection with such collections, Obligor may take (and, at
Secured Party's direction, shall take) such action as Obligor or Secured Party
may deem necessary or advisable to enforce collection of its Receivables;
PROVIDED, HOWEVER, that Secured Party shall have the right, if an Event of
Default has occurred and is continuing, to notify the account debtors or
obligors under any Receivables of the assignment of such Receivables to Secured
Party and to direct such account debtors or obligors to make payment of all
amounts due or to become due thereunder directly to Secured Party and, upon such
notification and at the expense of Obligor, to enforce collection of any amount,
payment, or other terms thereof, upon terms which it considers advisable. Any
amounts received or collected by Secured Party pursuant to this subsection shall
be held as cash collateral and applied as provided in Section 14(b). After such
notification, and in any event after the occurrence and during the continuance
of an Event of Default, (i) all amounts or proceeds received or collected by
Obligor in respect of Receivables shall be received in trust for the benefit of
Secured Party hereunder, shall be segregated from other funds of Obligor, and
shall be forthwith paid over to Secured Party in the same form as so received
(with any necessary endorsement) to be held as cash collateral and applied as
provided in Section 14(b), and (ii) Obligor shall not adjust, settle or
compromise the amount or payment of any Receivable, or release wholly or partly
any account debtor or obligor thereunder, or allow any credit or discount
thereon.

     (e) If an Event of Default has occurred and is continuing, Secured Party
shall have the right to communicate directly with account debtors and obligors
on the Receivables and to do test verifications of the Receivables.

     SECTION 8. TRANSFERS AND OTHER LIENS. Obligor shall not:

     (a) Sell, assign (by operation of law or otherwise), or otherwise dispose
of any of the Collateral except sales of inventory in the ordinary course of
business.

     (b) Create or suffer to exist any lien, security interest, or other
charge or encumbrance upon or with respect to any of the Collateral.

     SECTION 9. SECURED PARTY APPOINTED ATTORNEY-IN-FACT. Obligor hereby
irrevocably appoints Secured Party as its attorney-in-fact, with full authority
in the place and stead of Obligor and in the name of Obligor, Secured Party, or
otherwise, from time to time in Secured Party's discretion to take any action
and to execute any instrument which Secured Party may

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deem necessary or advisable to accomplish the purposes of this Agreement,
including, without limitation:

     (a) to sign in the name and on behalf of Obligor any financing statements
or other papers required under Section 4;

     (b) to ask, demand, collect, sue for, recover, compound, receive, and give
acquittance and receipts for moneys due and to become due under or in respect of
any of the Collateral;

     (c) to file any claims or take any action or institute any proceedings
which Secured Party may deem necessary or desirable for the collection of any of
the Collateral or otherwise to enforce the rights of Secured Party with respect
to any of the Collateral.

     Obligor hereby ratifies and approves all acts of Secured Party as such
attorney-in-fact. Secured Party shall not, in its capacity as such
attorney-in-fact, be liable for any acts or omissions, nor for any error in
judgment or mistake of fact or law, but only for gross negligence or willful
misconduct. This power, being coupled with an interest, is irrevocable until all
Liabilities have been fully satisfied and until Secured Party is no longer
committed to allow additional Liabilities to be incurred. Any amounts received
or collected by Secured Party in its capacity as such attorney-in-fact shall be
held as cash collateral and applied as provided in Section 14(b).

     SECTION 10. SECURED PARTY MAY PERFORM. If Obligor fails to perform any
agreement contained herein, Secured Party may itself perform, or cause
performance of, such agreement, and the expenses of Secured Party incurred in
connection therewith shall be payable by Obligor under Section 15(b).

     SECTION 11. SECURED PARTY'S DUTIES. The powers conferred on Secured Party
hereunder are solely to protect its interest in the Collateral and shall not
impose any duty to exercise any such powers. Except for the safe custody of any
Collateral in its possession and the accounting for moneys actually received by
it hereunder, Secured Party shall not have any duty as to any Collateral or as
to the taking of any necessary steps to preserve rights against any parties or
any other rights pertaining to any Collateral.

     SECTION 12. INSPECTION RIGHTS. Secured Party at all times shall have access
to inspect, audit, and make extracts from all of Obligor's records, files, and
books of account relating to the Collateral, and Obligor shall deliver any
document or instrument necessary for Secured Party to obtain records from any
service bureau maintaining records for Obligor. Secured Party may also, at all
reasonable times, examine and inspect inventory and other Collateral owned by
Obligor. Obligor shall, at Secured Party's request, take all steps necessary to
facilitate such inspection.

     SECTION 13. DEFAULT. "Event of Default" means nonpayment of any of the
Liabilities when due (whether at stated maturity or upon demand, acceleration of
maturity or otherwise), any other default with respect to the Liabilities, any
failure by Obligor to perform any of their obligations under this Agreement or
any other agreement, instrument, or document evidencing or

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securing any of the Liabilities, or any breach of any representation or warranty
made by Obligors in connection with the transactions contemplated by this
Agreement or any other agreement, instrument, or document evidencing or securing
any of the Liabilities.

     SECTION 14. REMEDIES. If any Event of Default shall have occurred and be
continuing:

     (a) Secured Party may exercise in respect of the Collateral, in addition to
other rights and remedies provided for herein (including those provided for on
the attached Additional Remedies Rider, which is incorporated by reference into
and made a part of this Security Agreement) or otherwise available to it, all
the rights and remedies of a secured party on default under the Delaware Uniform
Commercial Code (the "Code") and the Personal Property Security Act (Ontario)
(the "PPSA") and other applicable laws and agreements and also may (i) require
Obligor to, and Obligor hereby agree that it will at its expense and upon
request of Secured Party forthwith, assemble the tangible Collateral as directed
by Secured Party and make it available to Secured Party at a place or places to
be designated by Secured Party which are reasonably convenient to Secured Party
and Obligor and (ii) without notice except as specified below, sell the
Collateral or any part thereof in one or more parcels at public or private sale,
at any of Secured Party's offices or elsewhere, for cash, on credit, or for
future delivery, and upon such other terms as Secured Party may deem
commercially reasonable. Obligor agrees that, to the extent notice of sale shall
be required by law, at least five business days' notice to Obligor of the time
and place of any public sale or the time after which any private sale is to be
made shall constitute reasonable notification. Secured Party shall not be
obligated to make any sale of the Collateral regardless of notice of sale having
been given. Secured Party may adjourn any public or private sale from time to
time by announcement at the time and place fixed therefor, and such sale may,
without further notice, be made at the time and place to which it was so
adjourned.

     (b) All cash proceeds received by Secured Party in respect of any sale of,
collection from, or other realization upon all or any part of the Collateral
may, in the discretion of Secured Party, be held by Secured Party (with
interest) as collateral for, and/or then or at any time thereafter applied
(after payment of any amounts payable to Secured Party pursuant to Section 15)
in whole or in part by Secured Party against, all or any part of the Liabilities
in such order as Secured Party shall elect. Any surplus of such cash or cash
proceeds held by Secured Party and remaining after payments in full of all the
Liabilities shall be paid over to Obligor or to whosoever may be lawfully
entitled to receive such surplus.

     SECTION 15. EXPENSES. Obligor will upon demand pay to Secured Party the
amount of any and all reasonable expenses, including the reasonable fees and
disbursements of its counsel and of any experts and agents, which Secured Party
may incur in connection with (i) the preparation, administration and amendment
of this Agreement, (ii) the custody, preservation, use, or operation of, or the
sale of, collection from, or other realization upon, any of the Collateral,
(iii) the exercise or enforcement of any of the rights of Secured Party, or (iv)
the failure by Obligor to perform or observe any of the provisions hereof.

     SECTION 16. AMENDMENTS, INDULGENCES, ETC. No amendment or waiver of any
provision of this Agreement nor consent to any departure by Obligor herefrom
shall in any event be effective unless the same shall be in writing and signed
by Secured Party and Obligor, and

<PAGE>

then such waiver or consent shall be effective only in the specific instance and
for the specific purpose for which given. No failure or delay on the part of
Secured Party in the exercise of any right, power, or remedy under this
Agreement shall constitute a waiver thereof, or prevent the exercise thereof in
that or any other instance.

     SECTION 17. NOTICES. All notices, requests and demands to or upon the
respective parties hereto shall be deemed to have been given or made, (A) if
delivered by hand against receipt, on the date of such delivery, or (B) if
deposited in the mails, postage prepaid, registered or certified mail, return
receipt requested, on the third day following the date of postmark, addressed as
follows or to such other address as may be hereafter designated in writing by
the respective parties hereto:

If to Secured Party:

         Infonautics, Inc.
         590 North Gulph Road
         King of Prussia, PA 19406
         Attn:  President and CEO; Vice President and General Counsel
         Telephone:   610.971.8840
         Facsimile:   610.971.8859

         with a copy to:

         Morgan, Lewis & Bockius LLP
         1701 Market Street
         Philadelphia, PA 19102-2921
         Attn:  Joanne R. Soslow
         Telephone:   215.963.5000
         Fascimile:   215.963.5299

If to Obligor:

         Tucows Inc.
         96 Mowat Avenue
         Toronto, Ontario M6K 3M1
         Canada
         Attn:  Elliot Noss and Graham Morris
         Telephone:   416.535.0123
         Facsimile:   416.531.5584

<PAGE>
         with a copy to:

         Skadden, Arps, Slate, Meagher & Flom LLP
         4 Times Square
         New York, NY 10036
         Attn: David Fox
         Telephone:   212.735-3000
         Fascimile:   212.735.2000

     SECTION 18. CONTINUING SECURITY INTEREST; ETC. This Agreement shall create
a continuing security interest in the Collateral and shall (a) be binding upon
Obligor, its heirs, administrators, successors, and assigns and (b) inure to the
benefit of Secured Party and its successors, transferees, and assigns. The
execution and delivery of this Agreement shall in no manner impair or affect any
other security (by endorsement or otherwise) for the payment or performance of
the Liabilities and no security taken hereafter as security for payment or
performance of the Liabilities shall impair in any manner or affect this
Agreement or the security interest granted hereby, all such present and future
additional security to be considered as one general, continuing security. Any of
the Collateral may be released from this Agreement upon written agreement of the
parties without altering, varying, or diminishing in any way this Agreement or
the security interest granted hereby as to the Collateral not expressly
released, and this Agreement and such security interest shall continue in full
force and effect as to all of the Collateral not expressly released.

     SECTION 19. REPRESENTATIONS AND WARRANTIES. Obligor represents and warrants
to Secured Party that:

     (a) Obligor has all requisite power and authority to execute and deliver
this Agreement and to carry out the transactions contemplated hereby. The
execution, delivery and performance of this Agreement by Obligor has been duly
authorized by all requisite corporate action, and this Agreement has been duly
executed and delivered by Obligor and constitutes its valid and binding
obligation, enforceable against Obligor in accordance with its terms, except as
such enforcement may be limited by bankruptcy, insolvency, moratorium,
reorganization and other similar laws relating to or affecting the enforcement
of creditors' rights generally, and except that the availability of specific
performance, injunctive relief or other equitable remedies is subject to the
discretion of the court before which any such proceeding may be brought.

     (b) The execution, delivery and performance of this Agreement by Obligor
will not violate any provision of law, any rule or regulation of any
governmental authority, or any judgment, decree or order of any court binding on
Obligor, and will not conflict with or result in any breach of any of the terms,
conditions or provisions of, or constitute a default under, or, except as
expressly provided herein, result in the creation of any lien, security
interest, charge or encumbrance upon any of its properties, assets or
outstanding stock under its lease, agreement or other instrument to which
Obligor is a party or by which it or any of its properties is bound.

<PAGE>

     (c) Obligor's full and complete corporate name is Tucows Inc. Obligor's
only other prior corporate names are Tucows Interactive Ltd. and Tucows.com Inc.
The Obligor does not carry on business using a French form of its name.

     (d) The Obligor owns all of the assets described in Schedule 2 and is the
beneficiary of each accounts receivable described in Schedule 3.

     (e) The Obligor confirms that the PPSA registrations attached in Schedule 4
do not perfect a security interest in the property, assets and undertaking of
the Obligor other than those specifically identified as exceptions in
Schedule 4.

     SECTION 20. GOVERNING LAW; CONSENT TO JURISDICTION; ETC. This Agreement
shall be governed by and construed in accordance with the laws of the State
of Delaware. Obligor consents to the jurisdiction of the courts of Delaware
and of the courts of the United States sitting in Delaware in any litigation
concerning this Agreement, and Obligor waives any objection based on venue or
inconvenient forum. Obligor waives any right to trial by jury in any
litigation involving this Agreement. Unless otherwise defined herein, terms
defined in the Code as in effect in Delaware on the date hereof (including
the terms "inventory," "accounts," "general intangibles," "chattel paper,"
"instruments," "equipment," "fixtures," "financial assets," "investment
property," "proceeds," "products" and "documents") in so far as such terms
related to subject matter located in the United States are used herein as
therein defined as of such date. Unless otherwise defined herein, terms
defined in the PPSA as in effect in Ontario on the date hereof (including the
terms "inventory," "accounts," "general intangibles," "chattel paper,"
"instruments," "equipment," "fixtures," "financial assets," "investment
property," "proceeds," "products" and "documents") in so far as such terms
related to subject matter located in Canada are used herein as therein
defined as of such date. This Agreement may be executed in any number of
counterparts, all of which taken together shall constitute one and the same
instrument, and any of the parties hereto may execute this Agreement by
signing any such counterpart.

     SECTION 21. SEVERABILITY. The provisions of this Agreement are independent
of and separable from each other, and no such provision shall be affected or
rendered invalid or unenforceable by virtue of the fact that for any reason any
other such provision may be invalid or unenforceable in whole or in part.

     SECTION 22. ENTRUST SECURITY INTEREST. Notwithstanding anything to the
contrary herein, (including, without limitation, Section 8(b) hereof), at
Obligor's request, Secured Party will consent and agree to the grant by Obligor
of a security interest in the Collateral, or any part thereof, to Entrust
Technologies Limited ("Entrust") securing obligations, in an amount not to
exceed $750,000 in the aggregate, of Obligor to Entrust (such security interest,
the "Entrust Security Interest") on substantially the same terms as set out
herein. The Entrust Security Interest shall be on a PARI PASSU, ratable basis
with the security interest granted herein. In furtherance of the foregoing,
Secured Party agrees to either amend this Security Agreement to reflect the
Entrust Security Interest, or enter into an intercreditor agreement with
Entrust, on terms reasonably satisfactory to Secured Party, to reflect the PARI
PASSU and ratable nature of the respective security interests of Secured Party
and Entrust.

<PAGE>

     IN WITNESS WHEREOF, the Obligor, intending to be legally bound, has
executed or caused the execution of this Agreement, under seal, as of the date
first above written.

                                       TUCOWS INC.

                                       By:  /s/ Elliot Noss
                                            ----------------------------------
                                       Name:  Elliot Noss
                                       Title: President & Chief
                                              Executive Officer

Acknowledged and Agreed:

INFONAUTICS, INC.

By:  /s/ Van Morris
     --------------
Name:  Van Morris
Title: President & Chief Executive Officer

<PAGE>

                                   SCHEDULE 1

Locations of chief place of business and executive office (including County):

         Tucows Inc.
         96 Mowat Avenue
         Toronto, Ontario M6K 3M1
         Canada
         (County of York)

Locations of records concerning Receivables, originals of chattel paper
(including County):

         Tucows Inc.
         96 Mowat Avenue
         Toronto, Ontario M6K 3M1
         Canada
         (County of York)

Locations of Inventory and Equipment (including County):

         Tucows Inc.
         96 Mowat Avenue
         Toronto, Ontario M6K 3M1
         Canada
         (County of York)

         Tucows Inc.
         4100 Pier North Drive, Suite A
         Flint, Michigan 48504
         U.S.A.
         (County of Genesee)

<PAGE>

                                   SCHEDULE 2

     The Company owns, free of any encumbrances, all of the assets, tangible and
intangible, reflected in the draft consolidated financial statements as at March
2001. The book value of these assets as at March 31, 2001, was $32,281,997.

<PAGE>

                                   SCHEDULE 3

     The company has no liens over any of the accounts receivable reflected in
the draft consolidated financial statements of the company as at March 31, 2001.
The value of accounts receivable, net of allowance for doubtful accounts, as at
March 31, 2001 was $612,000.

<PAGE>

                                   SCHEDULE 4
                               PPSA REGISTRATIONS

     Two PPSA registrations pertain to motor vehicles. Lease agreements for both
the Nissan Maxima and the Chevrolet Venture were registered by a formerly
associated company of Obligor. Obligor hereby confirms that the two vehicles are
currently driven by two employees of Tucows Inc. who are each responsible for
payments on the cars.

     Certain pieces of Sun equipment acquired by Obligor pursuant to an Asset
Purchase Agreement dated May 4, 1999 by and between Obligor and Tucows
Interactive Limited and Tucows International Inc. continue to remain registered
against Obligor's formerly associated company(ies). Obligor is responsible for
ongoing payments with respect to the machinery. Obligor estimates the current
value of the equipment at approximately U.S. $10,000.

<PAGE>

     ADDITIONAL REMEDIES RIDER

     (a) Appoint by instrument in writing a receiver (which term shall include a
receiver and manager or agent) of the Obligor and of all or any part of the
Collateral and remove or replace such receiver from time to time or may
institute proceedings in any court of competent jurisdiction for the appointment
of a receiver. Any such receiver appointed by the Secured Party, with respect to
responsibility for its acts, shall, to the extent permitted by applicable law,
be deemed the agent of the Obligor and not of the Secured Party. Where Secured
Party is referred to in this Article the reference includes, where the context
permits, any receiver so appointed and the officers, employees, servants or
agents of such receiver;

     (b) Immediately and without notice enter the Obligor's premises and
repossess, disable or remove the Collateral;

     (c) Retain and administer the Collateral in the Secured Party's discretion;

     (d) Dispose of any Collateral by public auction, private tender or private
contract with notice, advertising or any other formality, all of which are
hereby waived by the Obligor to the extent permitted by law. The Secured Party
may, to the extent permitted by law, at its discretion acting reasonably
establish the terms of such disposition, including, without limitation, terms
and conditions as to credit, reserve bid or price. All payments made pursuant to
such dispositions shall be credited against the Obligations only as they are
actually received;

     (e) Foreclose upon the Collateral;

Upon the occurrence of an Event of Default and during its continuance, the
Secured Party on its own account or through a receiver, receiver-manager or
agent and whether alone or in conjunction with the exercise of all or any other
remedies contemplated hereby, shall have the right, at any time, to notify and
direct third parties to make all payments whatsoever to the Secured Party and
the Secured Party shall have the right, at any time, to hold all amounts
acquired from any such party and any proceeds as part of the Collateral. The
Secured Party shall, from and after such occurrence, be entitled to enforce
collection of any Collateral, and adjust, settle or compromise the amount or
payment of same, in such manner and to such extent as the Secured Party deems
appropriate in the circumstances.<PAGE>

                                                                    EXHIBIT 10.1

                               ADOPTION AGREEMENT
                             DREYFUS NONSTANDARDIZED
                     PROTOTYPE PROFIT SHARING PLAN AND TRUST

                                PLAN NUMBER 01002
                           IRS SERIAL NUMBER D362552A

The Employer named in Section I.A. below hereby establishes or restates a Profit
Sharing Plan ("Plan") and Trust, consisting of such sums as shall be paid to the
Trustee(s) under the Plan, the investments thereof and earnings thereon. The
terms of the Plan and Trust are set forth in this Adoption Agreement and the
applicable provisions of the Dreyfus Prototype Defined Contribution Plan, Basic
Plan Document No. 01, and the Dreyfus Trust Agreement, both as amended from time
to time, which are hereby adopted and incorporated herein by reference.

I.    BASIC PROVISIONS

      A.    Employer's Name:        BENCHMARK ELECTRONICS, INC.

            Address:                3000 TECHNOLOGY DRIVE
                                    ANGLETON, TX 77515
                                    (979) 849-6550

      B.    Employer is a (X) corporation; ( ) S Corporation;
            ( ) partnership; ( ) sole proprietor;
            ( ) other: [....]

      C.    Employer's Tax ID Number:     74-2211011

      D.    Employer's fiscal year: JANUARY 1 TO DECEMBER 31

      E.    Plan Name:  BENCHMARK ELECTRONICS, INC. 401(K) EMPLOYEE SAVINGS PLAN

      F.    If this is a new Plan, the Effective Date of the Plan is:  N/A

                                       1
<PAGE>

            If this is an amendment and restatement of an existing Plan, enter
            the original Effective Date: JANUARY 1, 1990. The effective date of
            this amended Plan is: DECEMBER 31, 2000. THIS PLAN ALSO CONSTITUTES
            AN AMENDMENT AND RESTATEMENT OF THE $AVEX SAVINGS PLAN, WHICH WAS
            ORIGINALLY EFFECTIVE JUNE 1, 1988, AND WHICH HAS BEEN MERGED INTO
            THIS PLAN AS OF DECEMBER 31, 2000.

      G.    The Trustee shall be:

            ( ) The Dreyfus Trust Company

            ( ) Other:  (Name)      BOSTON SAFE DEPOSIT AND TRUST COMPANY
                        (Address)   1 BOSTON PLACE
                                    BOSTON, MA 02108-4402
                        (Phone #)   (617) 722-7000

      H.    The first Plan Year shall be [....] through [....]. Thereafter, the
            Plan Year shall mean the 12-consecutive-month period commencing on
            DECEMBER 31 and ending on DECEMBER 30.

      I.    Service with the following predecessor employer(s): ELECTRONICS
            ACQUISITIONS, INC., EMD ASSOCIATES, INC. AND AVEX ELECTRONICS, INC.

            shall be credited for purposes of: [X] eligibility; [X] vesting.

            Note: Such Service must be credited if the adopting Employer
            maintains the plan of the predecessor employer.

      J.    The following employer(s) aggregated with the Employer under
            Sections 414(b), (c), (m) or (o) of the Internal Revenue Code
            ("Code") shall be Participating Employers in the Plan: BENCHMARK
            ELECTRONICS CORP. AND BENCHMARK ELECTRONICS HUNTSVILLE, INC.

      K.    Are all employers aggregated with the Employer under Sections
            414(b), (c), (m) or (o) of the Code participating in this Plan?

                        (X) Yes      ( ) No

                                       2
<PAGE>

II.   HOURS OF SERVICE

      A. For Eligibility Purposes.

      Hours of Service under the Plan will be determined for all Employees on
      the basis of the method selected below:

      (X)   On the basis of actual hours for which an Employee is paid or
            entitled to payment.

      ( )   On the basis of days worked. An Employee will be credited with ten
            (10) Hours of Service for any day such Employee would be credited
            with at least one (1) Hour of Service during the day under the Plan.

      ( )   On the basis of weeks worked.  An Employee will be credited with
            forty-five (45) Hours of Service for any week such Employee would be
            credited with at least one (1) Hour of Service during the week under
            the Plan.

      ( )   On the basis of semi-monthly payroll periods.  An Employee will be
            credited with ninety-five (95) Hours of Service for any semi-monthly
            payroll period such Employee would be credited with at least one (1)
            Hour of Service under the Plan.

      ( )   On the basis of months worked. An Employee will be credited with
            one hundred ninety (190) Hours of Service for any month such
            Employee would be credited with at least one (1) Hour of Service
            under the Plan.

      ( ) On the basis of elapsed time.

      B. For Vesting Purposes.

      Hours of Service under the Plan will be determined for all Employees on
      the basis of the method selected below:

      (X)   On the basis of actual hours for which an Employee is paid or
            entitled to payment.

                                       3
<PAGE>

      ( )   On the basis of days worked. An Employee will be credited with ten
            (10) Hours of Service for any day such Employee would be credited
            with at least one (1) Hour of Service during the day under the Plan.

      ( )   On the basis of weeks worked.  An Employee will be credited with
            forty-five (45) Hours of Service for any week such Employee would be
            credited with at least one (1) Hour of Service during the week under
            the Plan.

      ( )   On the basis of semi-monthly payroll periods.  An Employee will be
            credited with ninety-five (95) Hours of Service for any semi-monthly
            payroll period such Employee would be credited with at least one (1)
            Hour of Service under the Plan.

      ( )   On the basis of months worked. An Employee will be credited with
            one hundred ninety (190) Hours of Service for any month such
            Employee would be credited with at least one (1) Hour of Service
            under the Plan.

      ( )   On the basis of elapsed time.

III.  ELIGIBLE EMPLOYEES

      All Employees shall be Eligible Employees, except:

      (X)   Employees included in a unit of Employees covered by a collective
            bargaining agreement between the Employer and employee
            representatives, if retirement benefits were the subject of good
            faith bargaining. For this purpose, the term "employee
            representatives" does not include any organization more than half of
            whose members are Employees who are owners, officers, or executives
            of the Employer.

      (X)   Employees who are nonresident aliens and who receive no earned
            income from the Employer which constitutes income from sources
            within the United States.

      (X)   Employees included in the following classification(s):

                  (A) INDEPENDENT CONTRACTORS, DEFINED AS INDIVIDUALS WHO
                  PERFORM SERVICES FOR THE EMPLOYER BUT WHO ARE NOT EMPLOYEES.

                                       4
<PAGE>

                  SUCH INDIVIDUALS SHALL BE EXCLUDED EVEN IF A COURT OR
                  ADMINISTRATIVE AGENCY DETERMINES THAT SUCH INDIVIDUALS WHO
                  HAVE BEEN TREATED AS INDEPENDENT CONTRACTORS ARE COMMON LAW
                  EMPLOYEES AND NOT INDEPENDENT CONTRACTORS.

                  (B) SEASONAL EMPLOYEES, DEFINED AS EMPLOYEES HIRED BY THE
                  EMPLOYER WHOSE EMPLOYMENT (DURING PEAK PERIODS SUCH AS SUMMER
                  OR HOLIDAYS) IS EXPECTED TO BE LESS THAN FIVE (5) MONTHS PER
                  YEAR.

                  (C) INTERNS AND CO-OPS, DEFINED AS EMPLOYEES WHO ARE ENROLLED
                  IN A SECONDARY OR POST-SECONDARY EDUCATIONAL INSTITUTION AND
                  WHOSE EMPLOYMENT IS IN CONNECTION WITH AN APPROVED COURSE OF
                  STUDY.

      ( )   Employees of the following employers aggregated with the Employer
            under Sections 414(b), (c), (m) or (o) of the Code:

      (X)   Individuals required to be considered Employees under Section 414(n)
            of the Code.

      ( )   Employees who, subject to determination by the Committee that such
            election will not affect the plan's qualification, make a one-time
            irrevocable election not to participate in the Plan for purposes of
            the following:

            [ ]   Employer Discretionary Contributions.

            [ ] Elective Deferrals/Thrift Contributions/Combined Contributions.

      Note: The term Employee includes all employees of the Employer and any
            employer required to be aggregated with the Employer under Sections
            414(b), (c), (m) or (o) of the Code, and individuals considered
            employees of any such employer under Section 414(n) or (o) of the
            Code.

IV.   AGE AND SERVICE REQUIREMENTS

      Each Eligible Employee shall become a Participant on the Entry Date
      coincident with or following completion of the following requirements:

      Age:        (X)   No age requirement.

                                       5
<PAGE>

                  ( )   The attainment of age [....] (not to exceed age 21).

      Service:    ( )    No service requirement.

                  (X)   For Employer Discretionary Contributions AND MATCHING
                        CONTRIBUTIONS only -- The completion of [1] (not to
                        exceed 1 unless 100% immediate vesting is elected, in
                        which case, may not exceed 2)  Eligibility Years of
                        Service. If the Eligibility Years of Service is or
                        includes a fractional year, an Employee shall not be
                        required to complete any specific number of Hours of
                        Service to receive credit for such fractional year.

                  If more than 1 Eligibility Year of Service is required,
                  Participants must be 100% immediately vested.

                  (X)   For all other contributions -- The completion of [0]
                        (not to exceed 1) Eligibility Year of Service.

                                    AND

      Effective
      Date:       ( )   Each Eligible Employee who is employed on the Effective
                        Date shall become a Participant on the Effective Date.
                        Each Eligible Employee employed after the Effective Date
                        shall become a Participant on the Entry Date coincident
                        with or following completion of the age and service
                        requirements specified above.

                  (X)   Each Eligible Employee who is employed on the effective
                        date of this amended plan shall become a Participant as
                        of such date. Each Eligible Employee employed after the
                        effective date shall become a Participant on the entry
                        date coincident with or following completion of the age
                        and service requirements specified above.

                                       6
<PAGE>

V.    ELIGIBILITY YEARS OF SERVICE

      A.    For Employer Discretionary AND MATCHING Contributions, in order to
            be credited with an Eligibility Year of Service, an Employee shall
            complete [1000] (not to exceed 1,000) Hours of Service.

            Note: Not applicable if elapsed time method of crediting service for
            eligibility purposes is elected.

      B.    For all other contributions, in order to be credited with an
            Eligibility Year of Service, an Employee shall complete [N/A] (not
            to exceed 1,000) Hours of Service.

            Note: Not applicable if elapsed time method of crediting service for
            eligibility purposes is elected.

            Note: In the case of an Employee in the Maritime Industry, for
            purposes of Eligibility Years of Service, refer to Section 1.24 of
            the Plan.

VI.   ENTRY DATE

      The Entry Date shall mean:

      ( )   For the first Plan Year only, the initial Entry Date shall
            BE                      ;
               --------------------

      thereafter:

      ( )   Annual Entry.  The first day of the Plan Year. [Note:  If Annual]
            Entry is selected, the age and service requirements cannot exceed
            20 1/2 and 1/2 Eligibility Year of Service.]

      ( )   Dual Entry.  The first day of the Plan Year and the first day of the
            seventh month of the Plan Year.

      ( )   Quarterly Entry. The first day of the Plan Year and the first day
            of the fourth, seventh and tenth months of the Plan Year.

      ( )   Monthly Entry.  The first day of the Plan Year and the first day of
            each following month of the Plan Year.

                                       7
<PAGE>

      (X)   Other: IMMEDIATE ENTRY UPON COMPLETION OF THE APPLICABLE SERVICE
            REQUIREMENTS.  (Note: Eligible Employees must commence participation
            no later than the earlier of:  a) the beginning of the Plan Year
            after meeting the age and service requirements, or b) 6 months after
            the date the Employee meets the age and service requirements).

VII.  COMPENSATION

      A.    Except for purposes of "annual additions" testing under Section 415
            of the Code, Compensation shall mean all of each Participant's:

      (X)   Information required to be reported under Sections 6041, 6051, and
            6052 of the Code. (Wages, tips and other compensation box on Form
            W-2) Compensation is defined as wages as defined in Section 3401(a)
            and all other payments of compensation to the Employee by the
            Employer (in the course of the Employer's trade or business) for
            which the Employer is required to furnish the Employee a written
            statement under Sections 6041(d) and 6051(a)(3) of the Code.
            Compensation must be determined without regard to any rules under
            Section 3401(a) that limit the remuneration included in wages based
            on the nature or location of the employment or services performed
            (such as the exception for agricultural labor in Section 3401(a)(2)
            of the Code). This definition of Compensation shall exclude amounts
            paid or reimbursed by the Employer for moving expenses incurred by
            an Employee, but only to the extent that at the time of the payment
            it is reasonable to believe that these amounts are deductible by the
            Employee under Section 217 of the Code.

      ( )   Section 3401(a) wages. Compensation is defined as wages within the
            meaning of Section 3401(a) of the Code for purposes of income tax
            withholding at the source but determined without regard to any rules
            that limit the remuneration included in wages based on the nature or
            location of the employment or the services performed (such as the
            exception for agricultural labor in Section 3401(a)(2) of the Code).

      ( )   Section 415 safe-harbor compensation. Compensation is defined as
            wages, salaries, and fees for professional services and other
            amounts received (without regard to whether or not an amount is paid
            in cash) for personal services actually rendered in the course of
            employment with the

                                       8
<PAGE>

            Employer to the extent that the amounts are includible in gross
            income (including, but not limited to, commissions paid salesmen,
            compensation for services on the basis of a percentage of profits,
            commissions on insurance premiums, tips, bonuses, fringe benefits,
            and reimbursements or other expense allowances under a
            nonaccountable plan (as described in Section 1.62-2(c)), and
            excluding the following:

            (a)   Employer contributions to a plan of deferred compensation
                  which are not includible in the Employee's gross income for
                  the taxable year in which contributed, or Employer
                  contributions under a simplified employee pension plan
                  described in Section 408(k), or any distributions from a plan
                  of deferred compensation regardless of whether such amounts
                  are includible in the gross income of the Employee;

            (b)   Amounts realized from the exercise of a nonqualified stock
                  option, or when restricted stock (or property) held by the
                  Employee either becomes freely transferable or is no longer
                  subject to a substantial risk of forfeiture;

            (c)   Amounts realized from the sale, exchange or other disposition
                  of stock acquired under a qualified stock option; and

            (d)   Other amounts which receive special tax benefits, such as
                  premiums for group-term life insurance (but only to the extent
                  that the premiums are not includible in the gross income of
                  the Employee), or contributions made by the Employer (whether
                  or not under a salary reduction agreement) towards the
                  purchase of an annuity contract described in Section 403(b) of
                  the Code (whether or not the contributions are actually
                  excludable from the gross income of the Employee).

      which is actually paid to the Participant during  the following applicable
      period:

            (  )  the portion of the Plan Year in which the Employee is a
                  Participant in the Plan.

            (X)   the Plan Year.

            ( )   the calendar year ending with or within the Plan Year.

                                       9
<PAGE>

      (X)   Compensation shall be reduced by all of the following items (even if
            includible in gross income): reimbursements or other expense
            allowances, fringe benefits (cash and noncash), moving expenses,
            deferred compensation and welfare benefits.

      Compensation (X) shall; ( ) shall not include Employer contributions made
      pursuant to a salary reduction agreement with an Employee which are not
      includible in the gross income of the Employee by reason of Sections 125,
      402(e)(3), 402(h)(1)(B) or 403(b) of the Code.

      If the Employer's contributions to the Plan are not allocated on an
      integrated basis, the following may be excluded from the definition of
      Compensation selected above for any year in which the Plan is not Top
      Heavy:

            ( )   bonuses

            ( )   overtime

            ( )   commissions

            ( )   amounts in excess of $ [....]

            (X)   SEVERANCE

      For any Self-Employed Individual covered under the Plan, Compensation
      means Earned Income.

      B.    For purposes of "annual additions" testing under Section 415 of the
            Code, Compensation for any Limitation Year shall mean all of each
            Participant's:

      (X)   Information required to be reported under Sections 6041, 6051 and
            6052 of the Code. (Wages, tips and other compensation box on Form
            W-2) Compensation is defined as wages as defined in Section 3401(a)
            and all other payments of compensation to the Employee by the
            Employer (in the course of the Employer's trade or business) for
            which the Employer is required to furnish the Employee a written
            statement under Sections 6041(d) and 6051(a)(3) of the Code.
            Compensation must be determined without regard to any rules under
            Section 3401(a) that limit the remuneration included in wages based
            on the nature or location of the

                                       10

<PAGE>

            employment or services performed (such as the exception for
            agricultural labor in Section 3401(a)(2) of the Code). This
            definition of Compensation shall exclude amounts paid or reimbursed
            by the Employer for moving expenses incurred by an Employee, but
            only to the extent that at the time of the payment it is reasonable
            to believe that these amounts are deductible by the Employee under
            Section 217 of the Code.

      ( )   Section 3401(a) wages.  Compensation is defined as wages within the
            meaning of Section 3401(a) of the Code for purposes of income tax
            withholding at the source but determined without regard to any rules
            that limit the remuneration included in wages based on the nature or
            location of the employment or the services performed (such as the
            exception for agricultural labor in Section 3401(a)(2) of the Code).

      ( )   Section 415 safe-harbor compensation. Compensation is defined as
            wages, salaries, and fees for professional services and other
            amounts received (without regard to whether or not an amount is paid
            in cash) for personal services actually rendered in the course of
            employment with the Employer to the extent that the amounts are
            includible in gross income (including, but not limited to,
            commissions paid salesmen, compensation for services on the basis of
            a percentage of profits, commissions on insurance premiums, tips,
            bonuses, fringe benefits, and reimbursements or other expense
            allowances under a nonaccountable plan (as described in Section
            1.62-2(c)), and excluding the following:

            (a)   Employer contributions to a plan of deferred compensation
                  which are not includible in the Employee's gross income for
                  the taxable year in which contributed, or Employer
                  contributions under a simplified employee pension plan
                  described in Section 408(k), or any distributions from a plan
                  of deferred compensation regardless of whether such amounts
                  are includible in the gross income of the Employee;

            (b)   Amounts realized from the exercise of a nonqualified stock
                  option, or when restricted stock (or property) held by the
                  Employee either becomes freely transferable or is no longer
                  subject to a substantial risk of forfeiture;

            (c)   Amounts realized from the sale, exchange or other disposition
                  of stock acquired under a qualified stock option; and

                                       11
<PAGE>

            (d)   Other amounts which receive special tax benefits, such as
                  premiums for group-term life insurance (but only to the extent
                  that the premiums are not includible in the gross income of
                  the Employee), or contributions made by the Employer (whether
                  or not under a salary reduction agreement) towards the
                  purchase of an annuity contract described in Section 403(b) of
                  the Code (whether or not the contributions are actually
                  excludable from the gross income of the Employee).

      which is actually paid or includible in gross income during such
      Limitation Year.

      For any Self-Employed Individual covered under the Plan, Compensation
      means Earned Income.

VIII. LIMITATION YEAR

      Limitation Year shall mean the twelve (12) consecutive-month period:

      (X) Identical to the Plan Year.

      ( )   Identical to the Employer's fiscal year ending with or within the
            Plan Year of reference.

      ( )   As fixed by a resolution of the Board of Directors of the Employer,
            or the Employer if no Board of Directors exists.

IX.   NORMAL RETIREMENT AGE

      Normal Retirement Age shall mean:

      (X) Age [65] (not to exceed 65).

      ( )   Age [....] (not to exceed 65), or the [....] (not to exceed the 5th)
            anniversary of the date the Participant commenced participation in
            the Plan, if later.

                                       12
<PAGE>

X.    EARLY RETIREMENT AGE

      Early Retirement Age shall mean:

      ( )   There shall be no early retirement provision in this Plan.

      (X)   Age [55].

      ( )   Age [....] and [....] Years of Service.

XI.   EMPLOYER AND EMPLOYEE CONTRIBUTIONS

      A.    Types and allocation of Contributions

            1.    Employer Discretionary Contributions

                  ( )   Not permitted.

                  (X)   Permitted.

                        (X)   An amount fixed by appropriate action of the
                              Employer.

                        ( )   [....]% of Compensation of Participants for the
                              Plan Year (not to exceed 15%).

                        ( )   [....]% of Compensation of Participants for the
                              Plan Year, plus an additional amount fixed by
                              appropriate action of the Employer (in total not
                              to exceed 15%).

                  Employer Discretionary Contributions ( ) shall; (X) shall not
                  be integrated with Social Security.

                       If integrated with Social Security:

                        a.    ( )   The Permitted Disparity Percentage shall be
                                    [....]%.

                                       13
<PAGE>

                        b.    ( )   The Permitted Disparity Percentage shall be
                                    determined annually by appropriate action of
                                    the Employer.

                        c.    ( )   The Integration Level shall be:

                                    ( )   the Taxable Wage Base.

                                    ( )   $ _______ (a dollar amount less than
                                          the Taxable Wage Base).

                                    ( )   ____% (not to exceed 100% of the
                                          Taxable Wage Base).

                        Note: The Permitted Disparity Percentage cannot exceed
                              the lesser of: (i) the base contribution, or (ii)
                              the greater of 5.7% or the tax rate under Section
                              3111(a) of the Code attributable to the old age
                              insurance portion of the Old Age, Survivors and
                              Disability Income provisions of the Social
                              Security Act (as in effect on the first day of the
                              Plan Year). If the Integration Level selected
                              above is other than the Taxable Wage Base ("TWB"),
                              the 5.7% factor in the preceding sentence must be
                              replaced by the applicable percentage determined
                              from the following table.

                              IF THE INTEGRATION LEVEL IS:
                                                              THE APPLICABLE
                              MORE THAN   BUT NOT MORE THAN   FACTOR IS
                              ---------   -----------------   -----------

                              $0                 X*             5.7%
                              X*            80% of TWB          4.3%
                              80% of TWB         Y**            5.4%

                              *X = the greater of $10,000 or 20% of TWB

                              **Y = any amount more than 80% of TWB, but less
                              than 100% of TWB

                                       14
<PAGE>

            Allocation of Employer Discretionary Contributions.

                  In order to share in the allocation of Employer Discretionary
                  Contributions (and forfeitures, if forfeitures are reallocated
                  to Participants) an Active Participant:

                  ( )   Need not be employed on the last day of the Plan Year.

                  (X)   Must be employed on the last day of the Plan Year,
                        unless the Participant terminates employment on account
                        of:

                        (X)   Death.

                        (X)   Disability.

                        ( )   Attainment of Early Retirement Age.

                        (X)   Attainment of Normal Retirement Age.

                        ( ) Employer approved leave of absence.

                  (X)   Must have ( ) 501 Hours of Service; (X) [1000] Hours of
                        Service (cannot exceed 1,000). (Note: Not applicable if
                        elapsed time method of crediting service is elected.

            2.    Elective Deferrals

                  ( )   Not permitted.

                  (X)   Permitted.

                  A Participant may elect to have his or her Compensation
                  reduced by:

                  (X)   An amount not in excess of [17]% of Compensation
                        [cannot] exceed the dollar limitation of Section
                        402(g) of the Code for the calendar year].

                                       15
<PAGE>

                  ( )   An amount not in excess of $[....] of Compensation
                        [cannot exceed the dollar limitation of Section 402(g)]
                        of the Code for the calendar year].

                  ( )   An amount not to exceed the dollar limitation of
                        Section 402(g) of the Code for the calendar year.

                  ( )   An amount not in excess of (Note: The percent for the
                        Highly Compensated Employee cannot exceed the percent
                        for the Non-Highly Compensated Employee):

                              ____% of Compensation [cannot exceed the dollar]
                              limitation of Section 402(g) of the Code for the
                              calendar year] for each Highly Compensated
                              Employee; and

                              ____% of Compensation [cannot exceed the dollar]
                              limitation of Section 402(g) of the Code for the
                              calendar year] for each Non-Highly Compensated
                              Employee.

                  A Participant may elect to commence Elective Deferrals the
                  next pay period following: [ANY ENTRY DATE] (enter date or
                  period -- at least once each calendar year).

                  A Participant may modify the amount of Elective Deferrals as
                  of [THE FIRST PAYROLL PERIOD FOLLOWING ANY ENTRY DATE.] (enter
                  date or period -- at least once each calendar year).

                  A Participant ( ) may; (X) may not base Elective Deferrals on
                  cash bonuses that, at the Participant's election, may be
                  contributed to the CODA or received by the Participant in
                  cash. Such election shall be effective as of the next pay
                  period following [....] or as soon as administratively
                  feasible thereafter.

                  Participants who claim Excess Elective Deferrals for the
                  preceding calendar year must submit their claims in writing to
                  the plan administrator by [MARCH 1] (enter date between March
                  1 and April 15).

                                       16
<PAGE>

                  A Participant ( ) may; (X) may not elect to recharacterize
                  Excess Contributions as Thrift Contributions.  (Note:
                  Available only if Thrift Contributions are permitted.)

                  Participants who elect to recharacterize Excess Contributions
                  for the preceding Plan Year as Thrift Contributions must
                  submit their elections in writing to the Committee by [....]
                  (enter date no later than 2 1/2 months after close of Plan
                  Year).

            3.    Thrift Contributions

                  (X)   Not permitted.

                  ( )   Permitted.

                        Participants shall be permitted to make Thrift
                        Contributions from [....]% (not less than 1) to [....]%
                        (not more than 10) of their total aggregate
                        Compensation.

                        A Participant may elect to commence Thrift Contributions
                        the next pay period following [....] (enter date or
                        period--at least once each calendar year).

                        The Change Date for a Participant to modify the amount
                        of Thrift Contributions shall be as of [....] (enter
                        date or period -- at least once each calendar year).

            4.    Elective Deferrals and Thrift Contributions, combined
                  ("Combined Contributions")

                  (X)   Not Permitted.

                  ( )   Permitted.

                        A Participant may elect to make Combined Contributions
                        which do not exceed [....]% of Compensation.  (Note:
                        Elective Deferrals can not exceed the dollar limitation
                        of Section 402(g) of the Code for the calendar year).

                                       17
<PAGE>

                        A Participant may elect to commence contributions the
                        next pay period following: (enter date or period -- at
                        least once each calendar year).

                        A Participant may modify his amount of Combined
                        Contributions as of [....] (enter date or period -- at
                        least once each calendar year).

                        A Participant ( ) may; ( ) may not base Elective
                        Deferrals on cash bonuses that, at the Participant's
                        election, may be contributed to the CODA or received by
                        the Participant in cash. Such election shall be
                        effective as of the next pay period following [....] or
                        as soon as administratively feasible thereafter.

                        Participants who claim Excess Elective Deferrals for the
                        preceding calendar year must submit their claims in
                        writing to the plan administrator by [....] (enter date
                        between March 1 and April 15).

                        A Participant ( ) may; ( ) may not elect to
                        recharacterize Excess Contributions as Thrift
                        Contributions.

                        Participants who elect to recharacterize Excess
                        Contributions for the preceding Plan Year as Thrift
                        Contributions must submit their elections in writing to
                        the Committee by [....] (enter date no later than 2 1/2
                        months after close of the Plan Year).

            5.    Matching Contributions

                  ( )   Not permitted.

                  (X)   Permitted.

                        (X)   The Employer shall or may (in the event that the
                              Matching Contribution amount is within the
                              discretion of the Employer) make Matching
                              Contributions to the Plan with respect to (any one
                              or a combination of the following may be
                              selected):

                                       18
<PAGE>

                              (X) Elective Deferrals.

                              ( )   Thrift Contributions.

                              ( )   Combined Contributions.

                        Such Matching Contributions will be made on behalf of:

                              (X)   All Participants who make such
                                    contribution(s).

                              ( )   All Participants who are Non-Highly
                                    Compensated Employees who make such
                                    contribution(s).

                        The amount of such Matching Contributions made on behalf
                        of each such Participant shall be:

                        (i)   Elective Deferrals (any one or a combination of
                              the following may be selected) -

                              ( )   An amount or percentage fixed by
                                    appropriate action of the Employer.

                              (X) [50]% of the Elective Deferrals.

                              ( )   [....]% of the first [....]% of Compensation
                                    contributed as an Elective Deferral, plus

                                    [....]% of the next [....]% of Compensation
                                    contributed as an Elective Deferral, plus

                                    [....]% of the next [....]% of Compensation
                                    contributed as an Elective Deferral.

                              The Employer shall not match Elective Deferrals as
                              provided above in excess of $[....] or in excess
                              of [7.5]% of the Participant's Compensation.

                                       19
<PAGE>

                              The Employer shall not match Elective Deferrals
                              made by the following class(es) of Employees:
                              [....]

                        (ii)  Thrift Contributions (any one or a combination of
                              the following may be selected)-

                              ( )   An amount or percentage fixed by
                                    appropriate action of the Employer.

                              ( )   $[....] for each dollar of Thrift
                                    Contributions.

                              ( )   [....]% of the Thrift Contributions.

                              ( )   [....]% of the first [....]% of Compensation
                                    contributed, plus [....]% of the next [...]%
                                    of Compensation contributed, plus [....]% of
                                    the remaining Compensation contributed.

                              The Employer shall not match Thrift Contributions
                              as provided above in excess of $[....] or in
                              excess of [....]% of the Participant's
                              Compensation.

                              The Employer shall not match Thrift Contributions
                              made by the following class(es) of Employees:
                              [...]

                        (iii) Combined Contributions (any one or a combination
                              of the following may be selected).

                              ( )   An amount fixed by appropriate action of the
                                    Employer.

                              ( )   [....]% of Combined Contributions.

                              ( )   [....]% of Elective Deferrals, plus [....]%
                                    of Thrift contributions.

                              ( )   [....]% of the first [....]% of Compensation
                                    contributed, plus [....]% of the next [...]%
                                    of Compensation contributed, plus [....]% of
                                    the remaining Compensation contributed.

                                       20

<PAGE>

                        The Employer shall not match Combined Contributions as
                        provided above in excess of $[....] or in excess of
                        [....]% of the Participant's Compensation.

                        The Employer shall not match Combined Contributions made
                        by the following class(es) of Employees: [....]

                  Matching Contributions shall be made each:

                        (X)   Payroll period.

                        ( )   Month.

                        ( )   Quarter.

                        ( )   Plan Year.

                  Allocation of Matching Contributions --

                  In order to share in the allocation of Matching Contributions
                  (and forfeitures, if forfeitures are reallocated to
                  participants) a Participant:

                        ( )   Must be employed on the last day of the payroll
                              period.

                        ( )   Must be employed on the last day of the Month.

                        ( )   Must be employed on the last day of the Quarter.

                        ( )   Must be employed on the last day of the Plan Year.

                        unless the Participant terminates employment on account
                        of:

                              ( )   Death.

                              ( )   Disability.

                              ( )   Attainment of Early Retirement Age.

                                       21
<PAGE>

                              ( )   Attainment of Normal Retirement Age.

                              ( )   Employer approved leave of absence.

                        ( )   Must have ( ) 501 Hours of Service; ( ) [....]
                              Hours of Service (cannot exceed 1,000).  Note: Not
                              applicable if elapsed time method of crediting
                              service is elected.

            6.    Qualified Matching Contributions

                        ( )   Not permitted.

                        (X)   Permitted.

                              (X)   The Employer shall or may (in the event that
                                    the Qualified Matching Contribution amount
                                    is within the discretion of the Employer)
                                    make Qualified Matching Contributions.

                        Qualified Matching Contributions will be made on behalf
                        of:

                        ( )   All Participants who make Elective Deferrals.

                        (X)   All Participants who are Non-Highly Compensated
                              Employees and who make Elective Deferrals.

                        The amount of such Qualified Matching Contributions made
                        on behalf of each Participant shall be (any one or a
                        combination of the following may be selected):

                        (X)   An amount or percentage fixed by appropriate
                              action by the Employer.

                        ( )   [....]% of the Elective Deferrals.

                  The Employer shall not match Elective Deferrals as provided
                  above in excess of $[....] or in excess of [....]% of the
                  Participant's Compensation.

                                       22
<PAGE>

            7.    Qualified Nonelective Contributions

                  ( )   Not permitted.

                  (X)   The Employer shall have the discretion to contribute
                        Qualified Nonelective Contributions for any Plan Year in
                        an amount to be determined each year by the Employer.

                        Qualified Nonelective Contributions will be made on
                        behalf of (select as appropriate):

                        ( ) All Eligible Employees.

                        ( )   All Participants who make Elective Deferrals.

                        (X)   All Participants who are Non-Highly Compensated
                              Employees and who make Elective Deferrals.

                        ( )   All Participants who are Non-Highly Compensated
                              Employees.

                        ( )   All Non-Key Employees.

      B.    Forfeitures (Do not complete if 100% immediate vesting is elected).

            Forfeitures of Employer Discretionary Contributions, Matching
            Contributions or Excess Aggregate Contributions shall be:

            ( )   Allocated to participants in the manner provided in Sections
                  4.2 and 4.7(d)(2) of the Plan.

            (X)   Used to reduce:

                  (X) any future Employer contributions.

                  ( )   Plan expenses.

                                       23
<PAGE>

      C.    Contributions Not Limited by Net Profits

            Indicate for each type of Employer contribution allowed under the
            Plan whether such contributions are to be limited to Net Profits of
            the Employer for the taxable year of the Employer ending with or
            within the Plan Year:

                  ( )   Yes   (X)   No    Employer Discretionary Contributions

                  ( )   Yes   (X)   No    Elective Deferrals

                  ( )   Yes   (X)   No    Qualified Nonelective Contributions

                  ( )   Yes   (X)   No    Matching Contributions

                  ( )   Yes   (X)   No    Qualified Matching Contributions.

XII.  DISTRIBUTIONS AND IN-SERVICE WITHDRAWALS

      A.    Accounts shall be distributable upon a Participant's separation from
            service, death, or Total and Permanent Disability, and, in addition:

            (X)   Termination of the Plan without establishment or maintenance
                  of a successor plan.

            (X)   The disposition to an entity that is not an Affiliated
                  Employer of substantially all of the assets used by the
                  Employer in a trade or business, but only if the Employer
                  continues to maintain the Plan and only with respect to
                  participants who continue employment with the acquiring
                  corporation.

            ( )   Upon attainment of the Plan's Normal Retirement Age.

            (X)   The disposition to an entity that is not an Affiliated
                  Employer of the Employer's interest in a subsidiary, but only
                  if the Employer continues to maintain the Plan and only with
                  respect to Participants who continue employment with such
                  subsidiary.

                                       24
<PAGE>

            ( )   Vested portion of Employer Discretionary Contributions on
                  account of a Participant's financial hardship to the extent
                  permitted by Section 4.9 of the Plan.

            ( )   Vested portion of Employer Matching Contributions on account
                  of a Participant's financial hardship to the extent permitted
                  by Section 4.9 of the Plan.

      B.    In addition to A above, Elective Deferrals, Qualified Nonelective
            Contributions and Qualified Matching Contributions (as applicable)
            and income allocable to such amounts shall be distributable:

            (X)   Upon the Participant's attainment of age 59 1/2.

            (X)   On account of a Participant's financial hardship, to the
                  extent permitted by Section 4.9 of the Plan (Elective
                  Deferrals Only).

      C.    In-service withdrawals from a Participant's: (X) Employer
            Discretionary Contribution Account; (X) Matching Contribution
            Account; (X) Transfer Account, if any (X) shall; ( ) shall not be
            permitted upon the attainment of age 59 1/2. NOTWITHSTANDING SECTION
            4.8(A) OF THE PLAN, A PARTICIPANT NEED NOT BE 100% VESTED AT THE
            TIME OF SUCH DISTRIBUTION, PROVIDED THAT SUCH WITHDRAWALS SHALL BE
            PERMITTED ONLY FROM THE VESTED PORTION OF THE PARTICIPANT'S
            ACCOUNTS.

IN ADDITION TO A, B AND C ABOVE, AND NOTWITHSTANDING SECTION 10.3 OF THE PLAN,
THE PARTICIPANT'S ROLLOVER ACCOUNT SHALL BE DISTRIBUTABLE UPON THE PARTICIPANT'S
ATTAINMENT OF AGE 59 1/2.

      D.    Distribution of benefits upon separation of service, retirement or
            death of a Participant ( ) shall; (X) shall not be subject to the
            Automatic Annuity rules of Section 8.2 of the Plan.

      E.    (Complete only if the Plan is not subject to the Automatic Annuity
            rules of Section 8.2.) Check the appropriate optional forms of
            benefit that shall be available under the Plan (if left blank, the
            provisions of Section 8.6(a) of this Plan shall apply):

                  [X] Single lump sum payment.

                                       25
<PAGE>

                  [ ]   Installment payments pursuant to Section 8.6(a) of the
                        Plan.

      F.    The following optional forms of benefit shall be available in
            addition to the optional forms of benefit available under Section
            8.6 of the Plan (Note: If the Plan is not subject to the Automatic
            Annuity rules of Section 8.2 and the Participant is permitted to
            select an annuity as an optional form of benefit, then the Automatic
            Annuity rules of Section 8.2 shall apply to such participant):

            [Note: If the Plan is an amendment and restatement of an existing]
            Plan, optional forms of benefit protected under Section 411(d)(6) of
            the Code may not be eliminated, unless permitted by IRS Regulations
            Sections 1.401(a)-(4) and 1.411(d)-4].

XIII. VESTING SERVICE

      In order to be credited with a year of Service for vesting purposes, a
      Participant shall complete [1000] (not to exceed 1,000) Hours of Service.
      (Not applicable if elapsed time method of crediting service for vesting
      purposes is elected).

      Note: In the case of Employees in the Maritime Industry, for purposes of a
      year of Service, refer to Section 1.56 of the Plan.

XIV.  VESTING SERVICE - EXCLUSIONS

      All of an Employee's years of Service with the Employer shall be counted
      to determine the vested interest of such Employee except:

      ( ) Years of Service before age 18.

      ( )   Years of Service before the Employer maintained this Plan or a
            predecessor plan.

      ( )   Years of Service before the effective date of ERISA if such Service
            would have been disregarded under the Service Break rules of the
            prior plan in effect from time to time before such date.  For this
            purpose, Service Break rules are rules which result in the loss of
            prior vesting or benefit accruals,

                                       26
<PAGE>

            or deny an Employee's eligibility to participate by reason of
            separation or failure to complete a required period of Service
            within a specified period of time.

XV.   VESTING SCHEDULES

      The vested interest of each Employee (who has an Hour of Service on or
      after January 1, 1989) in his Employer-derived account balance shall be
      determined on the basis of the following schedules:

      A.  Employer Discretionary Contributions.

            ( )   100% immediately vested.  [Note:  Mandatory if more than 1]
                  Eligibility Year of Service is required.]

            ( )   100% immediately vested after [...] (not to exceed 5) years of
                  Service.

            ( )   [....]% (not less than 20%) vested for each year of Service,
                  beginning with the [....] (not more than the 3rd) year of
                  Service until 100% vested.

            (X)   Other: 50% VESTED UPON THE COMPLETION OF 2 YEARS OF SERVICE
                  AND 100% VESTED UPON THE COMPLETION OF 3 YEARS OF SERVICE
                  (Must be at least as favorable as any one of the above 3
                  options).

                  AND

            ( )   Effective Date Vesting.  Each Employee who is a Participant on
                  the Effective Date shall be 100% immediately vested.

      B.    Matching Contributions.

            ( )   100% immediately vested.  [Note:  Mandatory if more than 1]
                  Eligibility Year of Service is required.]

            ( )   100% immediately vested after [  ] (not to exceed 5) years of
                  Service.

                                       27
<PAGE>

            ( )   [....]% (not less than 20%) vested for each year of Service,
                  beginning with the [....] (not more than the 3rd) year of
                  Service until 100% vested.

            (X)   Other: 50% VESTED UPON THE COMPLETION OF 2 YEARS OF SERVICE
                  AND 100% VESTED UPON THE COMPLETION OF 3 YEARS OF SERVICE
                  (Must be at least as favorable as any one of the above 3
                  options).

                  AND

            ( )   Effective Date Vesting.  Each Employee who is a Participant on
                  the Effective Date shall be 100% immediately vested.

      C.    Top Heavy Minimum Vesting Schedules.

            One of the following schedules will be used for years when the Plan
            is or is deemed to be Top-Heavy.

            ( )   100% immediately vested after [....] (not to exceed 3) years
                  of Service.

            ( )   20% vested after 2 years of Service, plus [....]% vested (not
                  less than 20%) for each additional year of Service until 100%
                  vested.

            (X)   Other: 50% VESTED UPON THE COMPLETION OF 2 YEARS OF SERVICE
                  AND 100% VESTED UPON THE COMPLETION OF 3 YEARS OF SERVICE
                  (Note: must be at least as favorable as either of the two
                  schedules in this Section C).

            If the vesting schedule under the Plan shifts in or out of the
            Minimum Schedule above for any Plan Year because of the Plan's
            Top-Heavy status, such shift is an amendment to the vesting schedule
            and the election in Section 7.3 of the Plan applies.

XVI.  LIFE INSURANCE

      Life insurance ( ) shall; (X) shall not be a permissible investment.

                                       28
<PAGE>

XVII. LOANS

      Loans (X) shall; ( ) shall not be permitted.

XVIII.  TOP-HEAVY PROVISIONS

      A.  Top Heavy Status

            ( )   The provisions of Article XIII of the Plan shall always apply.

            (X)   The provisions of Article XIII of the Plan shall only apply in
                  Plan Years after 1983, during which the Plan is or becomes
                  Top-Heavy.

      B.  Minimum Allocations

            If a Participant in this Plan who is a Non-Key Employee is covered
            under another qualified plan maintained by the Employer, the minimum
            Top Heavy allocation or benefit required under Section 416 of the
            Code shall be provided to such Non-key Employee under: N/A

                  ( )   this Plan.

                  ( )   the Employer's other qualified defined contribution
                        plan.

                  ( )   the Employer's qualified defined benefit plan.

      C.  Determination of Present Value

            If the Employer maintains a defined benefit plan in addition to this
            Plan, and such plan fails to specify the interest rate an mortality
            table to be used for purposes of establishing present value to
            compute the Top-Heavy Ratio, then the following assumptions shall be
            used: N/A

                  Interest Rate: [....]%

                  Mortality Table: [....]

                                       29
<PAGE>

XIX.  LIMITATION ON ALLOCATIONS

            If the adopting Employer maintains or has ever maintained another
            qualified plan in which any Participant in this Plan is (or was) a
            Participant or could possibly become a Participant, the adopting
            Employer must complete this Section. The Employer must also complete
            this Section if it maintains a welfare benefit fund, as defined in
            Section 419(e) of the Code, or an individual medical account, as
            defined in Section 415(l)(2) of the Code, under which amounts are
            treated as Annual Additions with respect to any Participant in the
            Plan.

            (a)   If the Participant is covered under another qualified defined
                  contribution plan maintained by the Employer, other than a
                  Master or Prototype Plan, Annual Additions for any Limitation
                  Year shall be limited to comply with Section 415(c) of the
                  Code: N/A

                  ( )   in accordance with Sections 6.4(e) - (j) as though the
                        other plan were a Master or Prototype Plan.

                  ( )   by freezing or reducing Annual Additions in the other
                        qualified defined contribution plan.

                  ( )   other:

            (b)   If a Participant is or has ever been a Participant in a
                  qualified defined benefit plan maintained by the Employer, the
                  "1.0" aggregate limitation of Section 415(e) of the Code shall
                  be satisfied by: N/A

                  ( )   freezing or reducing the rate of benefit accrual under
                        the qualified defined benefit plan.

                  ( )   freezing or reducing the Annual Additions under this
                        Plan (or, if the Employer maintains more than one
                        qualified defined contribution plan, as indicated in (a)
                        above).

                  ( )   other: _____________________________

                                       30
<PAGE>

XX.   INVESTMENTS

      (X)   Participants (X) shall; ( ) shall not be permitted to direct the
            investment of their Accounts in the investment options selected by
            the Employer or the Committee.

      ( )   Investment of participant Accounts shall be directed consistent with
            rules and procedures established by the Committee.  Such rules shall
            be applied to all Participants in a uniform and nondiscriminatory
            basis.

XXI.  TRANSFERS

      Transfers pursuant to Section 10.3 of the Plan (X) shall; ( ) shall not be
      permitted.

      If permitted, indicate additional prior plan provisions, if applicable:
      [....].

XXII. ROLLOVERS

      Rollovers pursuant to Section 10.3 of the Plan (X) shall; ( ) shall not be
      permitted.

XXIII. EMPLOYER REPRESENTATIONS

      The Employer hereby represents that:

            a.    It is aware of, and agrees to be bound by, the terms of the
                  Plan.

            b.    It understands that the Sponsor will not furnish legal or tax
                  advice in connection with the adoption or operation of the
                  Plan and has consulted legal and tax counsel to the extent
                  necessary.

            c.    The failure to properly fill out this Adoption Agreement may
                  result in disqualification of the Plan.

                                       31
<PAGE>

XXIV. RELIANCE ON PLAN QUALIFICATION

      The adopting Employer may not rely on an opinion letter issued by the
      National Office of the Internal Revenue Service as evidence that the Plan
      is qualified under Section 401 of the Code. In order to obtain reliance
      with respect to plan qualification, the Employer must apply to the
      appropriate key district office of the Internal Revenue Service for a
      determination letter.

XXV.  PROTOTYPE PLAN DOCUMENTS

      This Adoption Agreement may be used only in conjunction with the Dreyfus
      Prototype Defined Contribution Plan, Basic Plan Document No. 01, and the
      Dreyfus Trust Agreement both as amended from time to time. In the event
      the Sponsor amends the Basic Plan Document or this Adoption Agreement or
      discontinues this type of plan, it will inform the Employer. The Sponsor,
      The Dreyfus Corporation, is available to answer questions regarding the
      intended meaning of any Plan provisions, adoption of the Plan and the
      effect of an Opinion Letter at 144 Glenn Curtiss Boulevard, Uniondale, New
      York 11556-0144 [(516) 338-3418].

                                       32
<PAGE>

      IN WITNESS WHEREOF, the Employer and the Trustee have executed this
      instrument the day 2nd of January, 2001. If applicable, the appropriate
      corporate seal has been affixed and attested to.

                                 BENCHMARK ELECTRONICS, INC.
                                                            -
                                 (Name of Business Entity)

                                 -----------------------------
                                 Signature(Sole Proprietors only)

                                 BY: Gayla J Delly, VP Finance
                                     -----------------------------------
                                 Name and Title (Corporations or Partnerships)

      ATTEST:

       Lenora Gurtan
      ---------------------------
      Secretary (Corporations only)

      SEAL:

                                    BOSTON SAFE DEPOSIT AND TRUST COMPANY
                                    (Name(s) of Trustee(s))

                                      /s/ John Geli
                                     ----------------------------
                                     Signature (Individual Trustee)

                                     ----------------------------
                                     Signature (Individual Trustee)

                                     BY: ----------------------------------
                                     Name and Title (Corporate Trustee only)

                                       33

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