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                                                                     EXHIBIT 2.1




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                            STOCK PURCHASE AGREEMENT



                            DATED AS OF JUNE 30, 2000

                                  BY AND AMONG

                              NEMATRON CORPORATION,

                        RONALD C. CAUSLEY, INDIVIDUALLY,

                                       AND

                        RONALD C. CAUSLEY, TRUSTEE OF THE
                        RONALD C. CAUSLEY REVOCABLE TRUST
                              DATED MARCH 14, 1990,
                                   AS AMENDED


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                            STOCK PURCHASE AGREEMENT

         STOCK PURCHASE AGREEMENT dated as of June 30, 2000 among the Ronald C.
Causley, Trustee of the Ronald C. Causley Revocable Trust dated March 14, 1990,
as amended ("Seller"), Ronald C. Causley, individually ("Causley"), and Nematron
Corporation, a Michigan corporation ("Purchaser").

         WHEREAS, Seller is the owner of 1,000 shares of common stock, $1.00 par
value per share (the "Shares") of A-OK Controls Engineering, Inc., a Michigan
corporation (the "Company"), which Shares constitute 100% of the issued and
outstanding capital stock of the Company;

     WHEREAS, Purchaser wishes to purchase from Seller and Seller wishes to sell
to Purchaser, upon the terms and conditions hereinafter provided, the Shares;



         NOW, THEREFORE, the parties agree as follows:


                                        I
              REPRESENTATIONS AND WARRANTIES OF SELLER AND CAUSLEY

         1.00 Representations of Seller and Causley. The Seller and Causley
jointly and severally represent and warrant to Purchaser as follows:

         1.01 Ownership of the Shares. Seller is the lawful owner of the Shares,
free and clear of all liens, encumbrances, restrictions and claims of every
kind. Except as set forth on Schedule 1.1 attached hereto, Seller has full legal
right, power and authority to sell assign, transfer and convey the Shares in
accordance with the terms and subject to the conditions of this Agreement. The
delivery to Purchaser of the Shares pursuant to the provisions of this Agreement
will transfer to Purchaser valid title thereto, free and clear of any claim,
lien, encumbrance or agreement with respect thereto.

         1.02. Existence and Good Standing of the Company. The Company is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Michigan and has all requisite corporate power and authority to
own, lease and operate its properties and to carry on its business as now being
conducted. The Company is duly qualified or licensed as a foreign corporation to
do business, and is in good standing in each jurisdiction in which the character
or location of the property owned, leased or operated by it or the nature of the
business conducted by it makes such qualification necessary, except where the
failure to be so duly qualified or licensed would not have a material adverse
effect on the business, financial condition or results of operations of the
Company. Schedule 1.2 attached hereto contains a list of all of the
jurisdictions in which the Company is presently doing business, with states
where it is qualified as a foreign corporation noted thereon.

         1.03. Capital Stock. The Company has an authorized capitalization
consisting of 50,000 shares of common stock, par value $1.00 per share, of which
1,000 shares are issued and owned by the Seller. All such outstanding shares
have been duly authorized and validly issued and are fully paid and
nonassessable. There are no outstanding subscriptions, options, warrants,
rights, calls, commitments, conversion rights,

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rights of exchange, plans or other agreements providing for the purchase,
issuance or sale of any shares of the capital stock of the Company, other than
as contemplated by this Agreement.

         1.04 Subsidiary. The Company does not own any subsidiary or own,
directly or indirectly, any interest or have an investment in any person. The
term "subsidiary" as used in this Section 1.04 shall mean any person of which
the Company owns, directly, or indirectly, more than 50% of the stock or other
equity interests that are generally entitled to vote for the election of the
board of directors or governing body of such person.

         1.05 Financial Statements and No Material Adverse Change. The Company
has heretofore furnished Purchaser with certain financial statements, which
include a balance sheet of the Company (the "Balance Sheet") as at November 30,
1999 (the "Balance Sheet Date"), and the related statements of income,
shareholders equity and cash flows for the year then ended. Such financial
statements, including the footnotes thereto, have been prepared in accordance
with generally accepted accounting principles and fairly present in all material
respects the financial condition and results of the operations of the Company
and the changes in its respective financial position at such date and for such
period. Since the Balance Sheet Date, except as shown on Schedule 1.5 attached
hereto, there has been no material adverse change in the business, financial
condition or results of operations of the Company. For purposes of this Section
1.05, "material adverse change" means any change, individually or in the
aggregate, of $25,000 or more.

         1.06 Title to Properties; Encumbrances. Except as set forth on Schedule
1.6 attached hereto, the Company has good title to all its properties and assets
(other than real property), including, without limitation, all the properties
and assets reflected in the Balance Sheet (except as indicated in the footnotes
thereto and except for properties and assets reflected in the Balance Sheet
which have been sold or otherwise disposed of in the ordinary course of business
after the Balance Sheet Date), subject to no encumbrance, lien, charge or other
restriction of any kind or character, except for (a) liens reflected in the
Balance Sheet or on Schedule 1.6, (b) liens or irregularities in title thereto
which do not materially detract from the value, of or impair the use of, such
property by the Company in the operation of its business, (c) liens arising by
operation of law and (d) liens for current taxes, assessments or governmental
charges or levies on property not yet due and delinquent (liens of the type
described in clauses (a) through (d) above, inclusive, together with liens
consisting of zoning or planning restrictions, easements, permits and other
restrictions or limitations of record on the use of real property are
hereinafter sometimes referred to as "Permitted Liens").

         1.07 Real Property.  The Company does not own any real property.

         1.08 Leases. Schedule 1.8 attached hereto contains a list of (a) all
leases of real property to which the Company is a party (and Purchaser
acknowledges that the landlord under the Auburn Hills and Saginaw leases is an
entity owned and controlled by Causley) and (b) all other leases pursuant to
which payments of greater than $25,000 per annum are paid. Each such lease set
forth on Schedule 1.8 is in full force and effect; all rents and additional
rents due to date on each such lease have been paid; in each case, the Company
has not received notice that it is in default thereunder. Except as set forth on
Schedule l.8, there exists no event, occurrence, condition or act (including the
purchase of the Stock hereunder) which, with the giving of notice, the lapse of
time or the happening of any further event or condition, would become a material
default by the Company under such lease. All the buildings, structures and
appurtenances situated on the real property listed on Schedule 1.8 are in good
operating condition and in a state of good maintenance and repair, ordinary wear
and tear excepted. There are no condemnation or appropriation proceedings
pending or, to the Seller's knowledge, threatened against any of the real
property leased by the Company. To the Seller's knowledge no work has been
performed on or materials supplied to

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the real property leased by the Company in Auburn Hills or Saginaw within any
applicable statutory period which could give rise to mechanic's or materialmen's
liens; all bills and claims for labor performed and materials furnished to or
for the benefit of the real property in Auburn Hills and Saginaw for all periods
prior to the Closing Date shall be paid in full, and Seller has no knowledge of
any mechanic's or materialmen's liens, whether or not perfected, nor affecting
any portion of the real property leased by the Company in Auburn Hills and
Saginaw.

         1.09 Material Contracts. Except as set forth on Schedule 1.8, 1.9 or
1.13 attached hereto, the Company does not have and is not bound by (a) any
written agreement, contract or commitment relating to the employment of any
Person by the Company, (b) any agreement, contract or commitment limiting the
freedom of the Company to engage in any line of business or to compete with any
other Person, (c) any agreement, contract or commitment not entered into in the
ordinary course of business which involves payment by the Company of $25,000 or
more in any calendar year and is not cancelable without penalty within 30 days,
(d) any contracts relating to the future disposition or acquisition of any
material assets, other than dispositions or acquisitions of inventory in the
ordinary course of business, (e) any contract (other than employees benefit
plans, leases and insurance policies) that (i) involves the payment or potential
payment, pursuant to its terms, by or to the Company of more than $25,000
annually and (ii) cannot be terminated within thirty (30) days after giving
notice of termination without resulting in any material cost or penalty to the
Company, (f) any contract with distributors, dealers, manufacturer's
representatives, sales representatives or sales agencies with whom the Company
deals in connection with its business. The Company has not violated any term or
condition of any contract or agreement set forth on Schedule 1.9 in any material
respect and to the knowledge of Seller no other party to such contracts has
violated any term or condition of such contracts in any material respect. The
Company has fulfilled all material obligations required pursuant to such
contracts to have been performed by it on its part prior to the date hereof.
Contracts made in the ordinary course of business involving an obligation or
commitment on the part of the Company of less than $25,000 in any calendar year
shall be deemed not to be material for purposes of this Section 1.9 and shall
not be required to be disclosed on Schedule 1.9.

         1.10 No Violations. Except as set forth on Schedule 1.10 attached
hereto, the execution and delivery of this Agreement by Seller and the
consummation of the transactions contemplated hereby (a) will not violate any
provision of the Articles of Incorporation or By-Laws of the Company, (b) to the
knowledge of Seller will not violate any statute, rule, regulation, order or
decree of any public body or authority by which the Company is bound or binding
upon any of their respective properties or assets and, (c) to the knowledge of
Seller will not result in a violation or breach of, or constitute a default
under, any license, franchise, permit, indenture, agreement or other instrument
to which the Company is a party, or by which the Company or any of their
respective assets or properties is bound, excluding from the foregoing clauses
(b) and (c) violations, breaches or defaults which, either individually or in
the aggregate, would not have a material adverse effect on the business,
financial condition or of operations of the Company.

         1.11 Litigation. Except as set forth on Schedule 1.11 attached hereto,
Seller has no notice of any action, suit or proceeding at law or in equity by
any person or any arbitration or any administrative or other proceeding by or
before any governmental or other instrumentality or agency, pending, or, to the
knowledge of Seller, threatened against the Company.

         1.12 Taxes. The Company has filed or caused to be filed, or will file
or cause to be filed on or prior to the Closing Date (as defined in Section
3.01), all federal, state, local and foreign tax returns and tax reports which
are required to be filed by, or with respect to, the Company on or prior to the
Closing Date (taking into account any extension of time to file granted to or an
behalf of the Company) (collectively, the "Returns"). Except as set forth on
Schedule 1.12 attached hereto, all federal, state, local

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and foreign taxes ("Taxes") due and payable by the Company have been, or prior
to the Closing Date will be, paid or fully provided for on the books and records
of the Company in accordance with generally accepted accounting principles.
Except as disclosed on Schedule 1.12, (a) there are no waivers in effect of the
applicable statutory period of limitation for Taxes of the Company for any
taxable period, and (b) no deficiency assessment or proposed adjustment with
respect to any tax liability of the Company for any taxable period is pending
or, to the knowledge of Seller, threatened. The federal income tax returns of
the Company have been audited by the Internal Revenue Service through the fiscal
year ended November 30, 1991 and any deficiencies assessed thereby have been
paid.

         1.13 Conduct of Business. Since the Balance Sheet Date, and except as
set forth on Schedule 1.13 or 1.20 attached hereto or as contemplated or
expressly required or permitted by this Agreement, the Company has not taken any
action which, if taken subsequent to the execution of this Agreement and on or
prior to the Closing Date, would constitute a breach of Seller's agreements set
forth in Article IV.

         1.14 Intellectual Properties. The Company does not own any domestic and
foreign patents, patent applications, patent licenses, software licenses (other
than those obtained on a non-exclusive basis in ordinary course business
transactions from software designers, packagers or resellers, which software
licenses are not proprietary as they relate to the Company), trade names (other
than the name of the Company registered as a corporate name in the states in
which the Company is either incorporated or qualified), trademarks, service
marks, trademarks registrations and applications, service mark registrations and
applications, copyright registrations and applications (collectively, the
"Intellectual Property"). To the knowledge of Seller and Causley, except as
stated on Schedule 1.14, there are no pending proceedings or litigation or other
adverse claims made in writing affecting or with respect to the Intellectual
Property. To the knowledge of Seller and Causley, the Company has not received
any notice that it is infringing any Intellectual Property of any other person
in connection with the conduct of the business of the Company and to the
knowledge of Seller and Causley, no claim is pending or has been made to such
effect that has not been resolved and, to the knowledge of Seller and Causley
the Company is not infringing any Intellectual Property of any other Person.

         1.15 Environmental Laws and Regulations. To the knowledge of Seller and
Causley, except as set forth on Schedule 1.15, (a) the Company is in compliance
in all material respects with applicable Environmental Laws and the requirements
of permits issued under such laws with respect to any property of the Company
such that the Company is fully able to carry out its business as currently
conducted; (b) there are no pending or threatened Environmental Claims against
the Company or any real property that individually or in the aggregate could
reasonably be expected to have a material adverse effect on the business,
financial condition or results of operations of the Company; (c) there have been
no releases of Hazardous Materials on, in, above or about any real property that
individually or in the aggregate could reasonably be expected to have a material
adverse effect on the business, financial condition or results of operations of
the Company, and (d) no Company facilities are hazardous waste treatment,
storage or disposal facilities, as such term is used in the Resource
Conservation and Recovery Act, 42 U.S.C. ss. 6901 et seq., which individually or
in the aggregate could reasonably be expected to have a material adverse effect
on the business, financial condition or results of operations of the Company as
the result of noncompliance with such statute. For proposes of this Agreement:

              "Environmental Law" means any applicable federal state or local
statute, law, rule, regulation, ordinance, code or rule of common law in each
case in effect and as amended as of the Closing Date, and any applicable
judicial or administrative interpretation thereof as of the Closing Date,
including any judicial or administrative order, consent decree or judgment,
relating to the environment, health, safety or Hazardous Materials;

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              "Environmental Claims" means administrative, regulatory or
judicial actions, suits, demands, demand letters, claims, liens, notices of
non-compliance or violation, investigations or proceedings relating to any
applicable Environmental Law or any permit issued under any such Law (hereafter
"Claims"), including (i) Claims by governmental or regulatory authorities for
enforcement, cleanup, removal, response, remedial or other actions or damages
pursuant to any applicable Environmental Law, and (ii) Claims by any third party
seeking damages, contribution, indemnification, cost recovery, compensation or
injunctive relief resulting from Hazardous Materials or arising from alleged
injury or threat of injury to health, safety or the environment; and

              "Hazardous Materials" means (i) any petroleum or petroleum
products, radioactive materials, asbestos in any form that is friable, urea
formaldehyde foam insulation, transformers or other equipment that contains
dielectric fluid containing levels of polychlorinated biphenyls, and radon gas,
and (ii) any chemicals, materials or substances defined as or included in the
definition of "hazardous substances, "hazardous wastes," "hazardous materials,"
"extremely hazardous wastes," "restricted hazardous wastes," "toxic substances,"
"toxic pollutants," or words of similar import under any applicable
Environmental Law.

         1.16 Compliance with Laws. Except as set forth on Schedule 1.16
attached hereto, the Company is, to the knowledge of Seller and Causley, in
compliance with all applicable laws, regulations, orders, judgments and decrees
except where the failure to so comply would not have a material adverse effect
on the business, financial condition or results of operations of the Company.

         1.17 Employee Benefit Plans. Each employee benefit plan within the
meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974,
as amended ("ERISA"), currently or over the last five years maintained or
contributed to by the Company, or any entity currently treated as a single
employer under Section 414(b) or (c) of the Internal Revenue Code of 1986, as
amended (the "Code") ("ERISA Affiliates") with the Company, with respect to
which the Company has a liability, and any deferred compensation, bonus, or
material fringe benefit plan, policy, trust, or arrangement whether written or
oral, with or for the benefit of any present or prior officer, director, or
employee with respect to which the Company is or will be required to make any
payment is listed on Schedule 1.17 attached hereto (collectively, the "Employee
Benefit Plans"). Except as set forth on such Schedule 1.17: (a) each Employee
Benefit Plan is, in all material respects, in compliance with applicable law and
has been administered and operated in all material respects in accordance with
its terms; (b) each Employee Benefit Plan which is intended to be "qualified"
within the meaning of Section 401(a) of the Code, has received a favorable
determination letter from the Internal Revenue Service (the "IRS") and, to the
knowledge of the Seller and Causley, no event has occurred and no condition
exists which would result in the revocation of any such determination; (c) no
Employee Benefit Plan is covered by Title IV of ERISA or subject to Section 412
of the Code or Section 302 of ERISA or a multiemployer plan (as described in
Section 3(37) of ERISA); (d) neither the Company nor, any ERISA Affiliate nor to
the Seller's knowledge, any other "disqualified person" or "party in interest"
(as defined in Section 4975(e)(2) of the Code and Section 3(14) of ERISA,
respectively) has engaged in any transactions in connection with any Employee
Benefit Plan that would reasonably be expected to result in the imposition of a
penalty pursuant to Section 502 of ERISA, damages pursuant to Section 409 of
ERISA or a tax pursuant to Section 4975 of the Code which penalty, damage or tax
would be a material liability to the Company; and (e) no litigation or legal or
administrative proceeding has been asserted or commenced or, to the Seller's and
Causley's knowledge, threatened, against any Employee Benefit Plan, the assets
of any such plan or the Company or any ERISA Affiliate with respect to any
Employee Benefit Plan, or the plan administrator or fiduciary of any Employee
Benefit Plan with respect to the operation of any such plan (other than routine,
uncontested benefit claims), and to the

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knowledge of Seller and Causley there are no facts or circumstances which would
reasonably be expected to form the basis for any such legal proceeding except to
the extent that any such litigation or proceeding would not reasonably be
expected to result in a material liability to the Company; (f) the Company has
no obligations under any of the Employee Benefit Plans, to provide health or
life insurance benefits to its current or prior employees (or their
beneficiaries or dependents) for periods after termination of employment, except
as specifically required by Section 4980B of the Code or subtitle B, part 6, of
Title I of ERISA or similar state continuation coverage law; (g) each Employee
Benefit Plan which is a "welfare benefit plan" under ERISA ss. 3(1) is
terminable in accordance with its terms by the Company at any time without any
further obligation thereunder other than to make payments and/or contributions
in respect of benefits theretofore accrued in accordance with its terms; and (h)
all contributions required to have been paid under any Employee Benefit Plan to
the date hereof have been timely made.

              With respect to each Employee Benefit Plan, the Company has
delivered to Purchaser a true and correct copy of (i) the annual reports (Form
5500), if any, filed with the IRS for the three recent plan years, (ii) the plan
document and all amendments thereto, along with any current summary plan
description for such Employee Benefit Plan, (iii) each trust agreement, group
annuity contract and insurance policy, if any, relating to such Employee Benefit
Plan and (iv) each determination letter from the IRS relating to such Employee
Benefit Plan which is intended to qualify under Section 401(a) of the Code.

              For purposes of this Section 1.17, "material" shall mean any
liability which exceeds $25,000.

         1.18 Insurance. Schedule 1.18 attached hereto contains a list of all
policies and contracts for property and casualty insurance maintained by the
Company. All such policies are in full force and effect.

         1.19 Brokers or Finder's Fees. No agent, broker, person or firm acting
on behalf of Seller or the Company is, or will be, entitled to any commission or
broker's or finder's fees from any of the parties hereto, or from any Person
controlling controlled by or under common control with any of the parties
hereto, in connection with any of the transactions contemplated herein, except
for Alliance-BRG, Ltd., whose fees and expenses will be paid by Seller.

         1.20 Employees. Schedule 1.20 attached hereto sets forth the following
information for each of the officers and employees of the Company: name and job
title; current annualized rate of compensation as of the date of this Agreement
(identifying any guaranteed bonuses separately); and the number of vacation days
such person is entitled to take in each calendar year.

         1.21 Labor Relations. The employees of the Company are not covered by
any collective bargaining agreement. To the knowledge of Seller and Causley (i)
there is no union organization activity currently underway, (ii) the Company is
not engaged in, or has not received any written notice during the current or
preceding year of, any unfair labor practice, and no such complaint is pending
before the National Labor Relations Board or any other agency having
jurisdiction thereof, (b) during the immediately preceding twelve (12) calendar
months there has not been any, and there is no threatened, labor strike, work
stoppage or slowdown pending and (iv) there is no material labor grievance
pending or threatened against or affecting the Company.

         1.22 Vehicles. Schedule 1.22 attached hereto contains a list of all
motor vehicles owned or leased by the Company. The two leases identified in
subsection (b) of Schedule 1.22 will be assigned by the Company and assumed by
Seller on the Closing Date.

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         1.23 Customers. None of the customers which accounted for one percent
or more of the dollar volume of purchases from the Company for the fiscal year
ended November 30, 1999 and for the five (5) months ended April 30, 2000 has
discontinued its relationship with the Company or notified it in writing that it
intends to discontinue its relationship with the Company.

         1.24 Bank Accounts. Schedule 1.24 attached hereto is a list containing
the names and locations of all banks or other financial institutions which are
depositories of funds of the Company, the names of all persons authorized to
draw or sign checks or drafts upon such accounts and the names and locations of
any institutions in which the Company has safe deposit boxes and the names of
the persons having access thereto.

         1.25 Accounts Receivable. All of the accounts receivable of the Company
on the Balance Sheet and created since the Balance Sheet Date and prior to the
Closing Date are the result of a bona fide sales or other transactions.

         1.26 Accuracy of Information. To the knowledge of Seller and Causley,
no representation or warranty by Seller or Causley in this Agreement, nor any
statement, document, certificate or schedule furnished or to be furnished in
connection with the transactions contemplated by this Agreement contains or will
contain any untrue statement of material fact or omits or will omit a material
fact necessary to make the statements contained therein too misleading.

         1.27 Investment Representations. Seller is acquiring the Nematron Stock
(defined in Section 3.04) for its own account and not with a view to
distribution or resale thereof in any transaction which would be in violation of
the Securities Act of 1933, as amended (the "Securities Act") and rules
promulgated thereunder, or any state securities statute, and agrees not to sell,
hypothecate or otherwise dispose of all or any part of the Nematron Stock unless
such Nematron Stock has been registered under the Securities Act and applicable
state or other securities laws or in the opinion of counsel for the Seller,
which counsel and which opinion are reasonably satisfactory to Purchaser, an
exemption from the registration requirements of the Securities Act and such
state or other laws is available. Seller is an "accredited investor" as defined
in Rule 501 under Regulation D promulgated under the Securities Act. Seller can
bear the economic risk of losing its investment in the Nematron Stock and is
presently able to afford the complete loss of such investment. Seller has such
knowledge and experience in financial and business matters so as to be capable
of evaluating the merits and risks of an investment in the Nematron Stock.
Seller has been furnished with and acknowledges receipt of the Purchaser's Form
10KSB for the year ended December 31, 1999, Form 10QSB for the quarter ended
March 31, 2000 and the proxy statement for the Purchaser's annual meeting of
shareholders held on May 23, 2000 (the "SEC Reports") and acknowledges that it
has been afforded the opportunity (i) to ask such questions as it has deemed
necessary of, and to receive answers from, representatives of Purchaser
concerning the merits and risks of investing in the Nematron Stock and (ii) to
obtain such additional information which Purchaser possesses or can acquire
without unreasonable effort or expense that is necessary to verity the accuracy
and completeness of the information contained in the SEC Reports. Seller
acknowledges that (a) Purchaser has answered all questions and responded to all
inquiries and requests for information to Seller's satisfaction, (b) it has
made, independently and without reliance upon the Purchaser (other than the
representations and warranties of the Purchaser set forth in Article II hereof)
or any agent or representative of the Purchaser and based on its own independent
analysis of the Purchaser and such other documents and information as it has
deemed appropriate, its own investment analysis and its own business decision to
enter into and consummate this Agreement and the transactions contemplated
hereby, (c) Purchaser does not guarantee the value of the Nematron Stock or the
price which Seller may receive upon sale by it of the Nematron Stock and (d) in
connection with the transaction contemplated herein, Seller may have received
nonpublic information about

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the Purchaser, and Seller will not trade in the Purchaser's common stock until
after Purchaser files its Form 10Q for the quarter ended June 30, 2000.

                                       II
                         REPRESENTATIONS AND WARRANTIES
                                  OF PURCHASER

         2.00 Representations of Purchaser. Purchaser represents and warrants to
Seller and Causley as follows:

         2.01 Existence and Good Standing. Purchaser is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Michigan.

         2.02 Authority. Purchaser has full corporate power to enter into this
Agreement and to consummate the transactions contemplated herein. This Agreement
has been duly authorized, executed, and delivered by Purchaser and is a valid
and binding obligation of Purchaser in accordance with its terms. Neither the
execution of this Agreement nor the consummation of the transactions
contemplated herein will constitute or cause a breach or violation of the
articles of incorporation or bylaws of Purchaser or of any covenant or
obligation binding upon Purchaser.

         2.03 Consents. No approval of or filing with any court, governmental
authority, or administrative agency (domestic or foreign) is required in
connection with the execution and delivery of this Agreement by Purchaser or its
consummation of the transactions contemplated herein.

         2.04 Accuracy of Information. The SEC Reports do not contain any untrue
statement of a material fact or omit to state a material fact necessary in order
to make the statements made, in light of the circumstances under which they were
made, not misleading, nor has there been any material adverse change in the
business, financial condition or results of operations of the Purchaser since
the date of the last of the SEC Reports except as has been disclosed to Seller
and Causley. For purposes of this Section 2.04, "material adverse change" means
any change, individually or in the aggregate, of $25,000 or more.

         2.05 Accuracy of Information. To the knowledge of Purchaser, no
representation or warranty by Purchaser in this Agreement nor any statement,
document, certificate or schedule furnished or to be furnished in connection
with the transactions contemplated by this Agreement contains or will contain
any untrue statement of material fact or omits or will omit a material fact
necessary to make the statements contained therein too misleading.


                                       III
                                PURCHASE AND SALE

         3.01 Sale of the Shares. Subject to the terms and conditions of this
Agreement, the Seller agrees to sell, transfer, and convey, and Purchaser hereby
agrees to purchase, the Shares. The closing of such purchase and sale (the
"Closing") shall take place within three business days after the conditions
precedent in Articles V and VI have been satisfied (such date being referred to
as the "Closing Date") and at a location to be agreed upon. Subject to the terms
and conditions of this Agreement, each party agrees to use its reasonable best
efforts to take, or cause to be taken, all action and to do, or cause to be
done, all

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things reasonably necessary, proper, or advisable in order to cause the timely
consummation of the transactions contemplated hereby.

         3.02 Delivery of Certificates. At the Closing, the Seller shall deliver
to Purchaser certificates representing all of the Shares, endorsed in blank or
with accompanying stock powers duly signed. The Seller shall also deliver such
other instruments or documents as shall, in the opinion of Purchaser's counsel,
be reasonably required to vest good and marketable title in the Purchaser to the
Shares.

         3.03 Resignations. Contemporaneously with the Closing, all of the
directors and officers of the Company shall resign.

         3.04 Purchase Price. The aggregate purchase price hereunder for all of
the Stock (the "Purchase Price") shall consist of $4,000,000, $2,750,000 in cash
and $1,250,000 of unregistered common stock of the Purchaser ("Nematron Stock"),
said cash to be payable and Nematron Stock deliverable to the Seller at Closing.
The number of shares of Nematron Stock to be issued at Closing shall be
determined by dividing $1,250,000 by the average closing sale price for such
shares of Nematron common stock on the American Stock Exchange for the ten
trading days prior to the two trading days immediately preceding the Closing
Date. The number of shares of Nematron Stock to be delivered at Closing is
604,186, determined as set forth on Schedule 3.04 attached hereto. Seller and
Causley acknowledge and agree with the calculation of the number of shares set
forth on Schedule 3.04. The Purchase Price shall be subject to certain
adjustments described in Section 3.06. The remainder of the Purchase Price shall
be paid in cash by the Purchaser, or the reimbursement of a portion of the
Purchase Price theretofore received by Seller shall be paid in cash, as
appropriate, after the final adjustments to the Purchase Price pursuant to
Section 3.06.

         3.05 Repayment of Company Indebtedness. At Closing Purchaser will cause
the Company to pay to Causley the indebtedness owing from the Company to Causley
in the outstanding principal amount of $2,078,000, plus interest through the
Closing Date, and Causley will deliver to the Company a receipt and release
acknowledging payment in full of such indebtedness. At Closing Purchaser will
also cause Huntington Bank to release Causley from any personal guaranties of
the Company's indebtedness to Huntington Bank, and will cause Huntington Bank to
deliver to Causley documentary evidence of such release.

                  3.06 Purchase Price Adjustment.

                  (a)  As soon as practicable following the Closing Date (but
not later than 30 days after the Closing Date), Purchaser shall cause the
Company to prepare and deliver to Seller an unaudited balance sheet of the
Company as at June 30, 2000 (the "Closing Balance Sheet"), together with a
certificate of the chief financial officer of the Company, stating that the
Closing Balance Sheet was prepared in accordance with this Section 3.06. The
Closing Balance Sheet shall be prepared so as to present fairly in all material
respects the financial position of the Company at such date and shall be
prepared on a basis consistent with the Balance Sheet.

                  (b)  If the amount determined by subtracting total liabilities
from total assets on the Closing Balance Sheet (the "Closing Adjusted Net
Worth") exceeds the amount determined by subtracting total liabilities from
total assets on the Balance Sheet (the "Most Recent Adjusted Net Worth"), then
Purchaser shall pay to Seller the amount of the excess. If the Most Recent
Adjusted Net Worth exceeds the Closing Adjusted Net Worth, then Seller shall pay
to Purchaser the amount of the excess. Any amounts payable pursuant to this
Section 3.06(b) shall be paid within 2 business days after the Closing Balance
Sheet is deemed final and conclusive pursuant to Section 3.07, by wire transfer
in immediately available

                                       9
<PAGE>   11
funds to an account designated by Seller or Purchaser as the case may be. In all
computations pursuant to this Section 3.06(b), the excess of assets over
liabilities shall include an adjustment to state the amount of work-in-process
and unbilled accounts receivable at the contract rate of billing, less federal
and state taxes thereon, consistent with GAAP accounting. In addition, the
increase in federal and state taxes owing by the Company arising from such
adjustment is the responsibility of Seller; any provision for taxes as a result
of increasing the amount of work-in-process and unbilled accounts receivable
will be offset in the Closing Balance Sheet and the Balance Sheet by a
receivable from the Seller in the amount of the taxes, which receivable will be
deducted from any additional payment made by Purchaser or added to any
additional payment made by Seller (provided, that Seller will receive credit for
the $156,000 deducted at Closing pursuant to Section 3.06(e)).

              (c) At Closing the Company shall assign to Seller, without
recourse, the Quantum receivable in the amount of $256,898.21 and such amount
will offset against the repayment of the shareholder indebtedness described in
Section 3.05.

              (d) At Closing Purchaser will offset against the repayment of the
shareholder indebtedness described in Section 3.05 the amount of $18,000 for
costs and penalties relating to filing of Form 5500 for certain benefit plans of
the Company.

              (e) At Closing Purchaser will offset against repayment of the
shareholder indebtedness described in Section 3.05 the amount of $156,000 as an
estimated amount of Seller's tax liability for work in process adjustments
described in Section 3.06(b).

         3.07 Dispute and Resolution. (a) In the event Seller does not agree
with the Closing Balance Sheet as prepared by the Company, Seller shall so
inform Purchaser in writing within 30 days of Seller's receipt thereof, such
writing to set forth the objections of Seller in reasonable detail. If Seller
and Purchaser cannot reach agreement as to any disputed matter relating to the
Closing Balance Sheet within 15 days of Purchaser's receipt thereof, they shall
forthwith refer the dispute to the southeastern Michigan office of Plante Moran
for resolution, with the understanding that such firm shall resolve all disputed
items within 20 days after such disputed items are referred to it. Each of
Purchaser and Seller shall bear one-half of the costs of Plante Moran. The
decision of Plante Moran with respect to all disputed matters relating to the
Closing Balance Sheet shall be deemed final and conclusive and shall be binding
upon Purchaser and Seller. In addition, if Seller does not object to the Closing
Balance Sheet as prepared by the Company within the 30-day period referred to
above, the Closing Balance Sheet as so prepared shall be deemed final and
conclusive and binding upon the Purchaser and Seller.

                  (b) Until the Closing Balance Sheet is deemed final and
conclusive pursuant to Section 3.07(a), Purchaser shall provide Seller and their
representatives full access to the books, records, facilities and employees of
the Company and shall cooperate fully with Seller. Seller shall also be entitled
to have access to the work papers prepared in connection with the Closing
Balance Sheet and shall be entitled to discuss such work papers with the persons
who prepared them.

         3.08 Legend on Nematron Stock. Seller understands that the Nematron
Stock has not been registered under the Securities Act or any state securities
laws, and that it must therefore bear the economic risk of such investment
indefinitely, unless a subsequent disposition thereof is registered under the
Securities Act or is exempt from registration, and that the certificates
representing Nematron Stock will bear substantially the following legend:

                                       10
<PAGE>   12

         "The shares represented by this certificate are "Restricted
         Securities". As such they may not be transferred unless (i) such
         transfer is effected pursuant to a registration statement which has
         been filed under the Securities Act of 1933 (the "1933 Act") and
         declared effective by the Securities and Exchange Commission, or (ii)
         in the written opinion of counsel, which opinion and counsel are
         acceptable to the issuer of these shares, such transfer may be effected
         under and is in compliance with Rule 144 under the 1933 Act, as in
         effect on the date of such transfer, or is otherwise exempt from the
         registration requirements of the 1933 Act."

         Notwithstanding the foregoing, the parties agree to be bound by the
terms of a certain Registration Rights Agreement in the form attached hereto as
Exhibit 3.08.


                                       IV
                         COVENANTS OF SELLER AND CAUSLEY

         4.00 Covenants. Except for transactions expressly permitted by this
Agreement, Seller and Causley covenants and agrees as follows from the date of
this Agreement until the Closing:

         4.01 Conduct of Business of the Company. The Company will carry on its
business in the usual and ordinary course, consistent with prior practice, will
not introduce any fundamental new method of management or operation, will
perform in all material respects all obligations to be performed by it pursuant
to each material agreement to which it is bound, and will use its reasonable
best efforts to preserve in all material respects its relationships with
customers, suppliers, employees and others transacting business with it and the
services of all officers, employees, agents and representatives.

         4.02 Corporate Existence. The Company will maintain its corporate
existence and good standing in its jurisdiction of incorporation and in each
jurisdiction in which it is qualified to do business, and it will not amend its
charter documents or bylaws.

         4.03 Material Transactions. Except for transactions in the usual and
ordinary course of business consistent with past practices, without Purchaser's
consent the Company will not (a) waive a material right, cancel or amend a
material contract, debt, or claim, or assume or enter into a material contract,
lease, license, obligation, indebtedness, commitment, purchase, or sale, (b)
enter into any employment or severance agreement with any person whose total
annual compensation exceeds $35,000 pursuant to which the Company would have any
obligations following the Closing; (c) enter into a guarantee of indebtedness of
any person or entity; (d) sell, lease or otherwise dispose of any material asset
or property; (e) make or guarantee any loan, advance or capital contributions to
or investment in any person or entity; or (f) enter into any collective
bargaining agreement with any union or other collective bargaining
representative. For purposes of this Section 4.03, and without limiting the
generality of the foregoing, all indebtedness for borrowed money or guarantees
thereof and commitments and agreements having a duration in excess of one year
or for amounts in excess of $25,000, are deemed to be material and not in the
usual and ordinary course of business. The Purchaser acknowledges that the
Company will, prior to Closing, enter into subleases for space in the Auburn
Hills building with Quantum and Visioneering, the terms of which subleases will
be acceptable to Purchaser.

         4.04 Maintenance of Properties. The Company will (a) duly and timely
file all material reports and returns required to be filed with any governmental
agency and will promptly pay when due all material taxes, assessments, and
governmental charges, including interest and penalties levied or assessed,
unless

                                       11
<PAGE>   13

diligently contested in good faith by appropriate proceedings, (b) maintain and
keep in substantially their current condition all of its buildings, offices,
shops, other structures, and material tangible personal property, and (c)
maintain in full force and effect all material policies of insurance that are
listed on Schedule 1.18.

         4.05 Access. The Company will afford Purchaser and Purchaser's
financing sources and their respective representatives (including their
respective counsel, accountants, and other agents) full access at all reasonable
times to all of the plants, offices, properties, and records of the Company, and
will furnish all such other information concerning the business, properties,
financial condition, prospects and results of operations of the Company as
Purchaser and Purchaser's financing sources may reasonably request; provided
that Purchaser and its financing sources will conduct such review in a manner
that does not unreasonably interfere in the conduct of the business of the
Company or result in substantial out-of-pocket costs to Seller or the Company.

         4.06 Noncompete. At Closing Causley shall enter into an Agreement Not
to Compete in the form attached as Exhibit 6.09 hereto.

         4.07 Publicity. Other than the press release announcing the letter of
intent, prior to the Closing, no party will issue or cause the publication of
any press release or other public announcement with respect to this Agreement or
the transactions contemplated hereby without the prior consent of the other
party, which consent will not be unreasonably withheld or delayed; provided,
however, that nothing herein will prohibit any party from issuing or causing
publication of any such press release or public announcement to the extent that
such party determines such action to be required by law or the rules of any
national stock exchange applicable to it or its affiliates, in which event the
party making such determination will, if applicable in the circumstances, use
reasonable efforts to allow the other party reasonable time to comment on such
release or announcement in advance of its issuance. Moreover, nothing herein
shall be construed to prohibit or preclude the Purchaser from disclosing
information regarding the Company or its business or properties to its
professional advisors or potential lenders or other financial participants in
the transaction.

         4.08 No-Shop. Neither the Company or any of its officers, employees,
directors, nor Causley or the Seller or any of their representatives (including
investment bankers, accountants, attorneys, agents or consultants) will take any
action to, directly or indirectly, (i) encourage, initiate or solicit
discussions or negotiations with any person, other than Purchaser (and its
affiliates and representatives), concerning any purchase of any capital stock of
the Company or any merger, asset sale or similar transaction involving the
Company (other than sales of assets in the ordinary course of business
consistent with past practice), or enter into any negotiations or agreement with
any third party with respect to the foregoing (an "Alternative Transaction"), or
(ii) except as may be required by law or legal process, disclose non-public
information relating to the Company or provide access to property, books or
records of the Company to any person, other than Purchaser (and its affiliates
and representatives), in connection with any solicitation, offer or proposal of
an Alternative Transaction. The Seller and Causley will promptly disclose to
Purchaser the existence or occurrence of any proposal, contract or contact which
they, the Company or any of their representatives described above may receive
after the date hereof in respect of any Alternative Transaction. The Seller and
Causley agree that they will, and will cause the Company and its officers,
employees, directors, agents and representatives to, immediately cease any
activities, discussions or negotiations existing as of the date of this
Agreement with any parties conducted heretofore with respect to any Alternative
Transaction.



                                       12
<PAGE>   14
                                        V
                          SELLER'S CONDITIONS PRECEDENT

         5.00 Conditions to Seller's Obligations. All of the following shall be
conditions precedent to the Seller's obligation to consummate the transactions
contemplated by this Agreement:

         5.01 Representations and Warranties. The representations and warranties
made by Purchaser herein shall be correct in all material respects on and as of
the date when made, and on and as of the Closing Date.

         5.02 Performance. Purchaser shall have complied in all material
respects with all of its obligations under this Agreement.

         5.03 No Illegality. There shall not be in effect any statute, rule, or
regulation which makes it illegal for the Sellers to consummate the transactions
contemplated herein, or any order, decree, or judgment which enjoins the Seller
from consummating the transactions contemplated herein.

         5.04 No Litigation. No suit, action, or other proceeding shall be
pending or, to the knowledge of Seller and Causley, threatened against Seller
(i) by any governmental authority which challenges or seeks to challenge,
restrain or prohibit the consummation of the transaction contemplated hereby or
(ii) before any court or government agency that Seller reasonably determines
would be materially adverse to them if they consummated the transactions
contemplated hereby.

         5.05 Closing Certificate. Seller shall have received a certificate
signed by Purchaser and dated the Closing Date to the effect that the conditions
precedent provided in Sections 5.01, 5.02 and 6.04 have been satisfied. The
delivery of such certificate shall in no way diminish, supersede or enlarge the
representations and warranties of Purchaser made in this Agreement or its
liability in respect thereof pursuant to Article IX.

         5.06 Opinion of Counsel. Seller shall have been provided an opinion of
counsel for the Purchaser, in form and substance reasonably acceptable to Seller
and its counsel.



                                       VI
                        PURCHASER'S CONDITIONS PRECEDENT

         6.00 Conditions to Purchaser's Obligations. All of the following shall
be conditions precedent to Purchaser's obligation to consummate the transactions
contemplated by this Agreement:

         6.01 Representations and Warranties. Except for the changes expressly
permitted by this Agreement, the representations and warranties made by Seller
herein shall be accurate and correct in all material respects on and as of the
date when made, and on, as of and as if made on the Closing Date. The Schedules
referred to herein and the documents and schedules delivered pursuant hereto
shall likewise be accurate and correct in all material respects on and as of the
date when made, and on, as of and as if made on the Closing Date.

         6.02 Performance. Seller shall have complied in all material respects
with all of its obligations under this Agreement.

                                       13
<PAGE>   15


         6.03 No Illegality. There shall not be in effect any statute, rule, or
regulation which makes it illegal for Purchaser to consummate the transactions
contemplated herein, or any order, decree, or judgment which enjoins Purchaser
from consummating the transactions contemplated herein.

         6.04 No Litigation. No suit, action, or other proceeding shall be
pending or, to the knowledge of Purchaser, threatened against Purchaser (i) by
any governmental authority which challenges or seeks to challenge, restrain or
prohibit the consummation of the transaction contemplated hereby or (ii) before
any court or government agency that Purchaser reasonably determines would be
materially adverse to it if it consummated the transactions contemplated hereby.

         6.05 No Material Adverse Change. During the period from the date hereof
to the Closing, there shall not have been any material adverse change in the
business, properties, financial condition, prospects or results of operations of
the Company (including, without limitation, any loss or damage to its
properties, whether or not insured, which materially affects the ability to
conduct business).

         6.06 Closing Certificate. Purchaser shall have received a certificate
(the "Sellers Closing Certificate") signed by Seller and dated the Closing Date
to the effect that the conditions precedent provided in Sections 5.01, 5.02,
5.04 and 6.05 have been satisfied. The delivery of such certificate shall in no
way diminish, supersede or enlarge the representations and warranties of Seller
made in this Agreement or its liability in respect thereof pursuant to Article
IX.

              6.07 Opinion of Counsel. Purchaser shall have been provided an
opinion of counsel for Seller, Causley and the Company in form and substance
reasonably acceptable to Purchaser and its counsel.

              6.08 Employment Agreement. Causley shall have entered into an
employment agreement with the Company in the form attached hereto as Exhibit
6.08.

              6.09 Noncompetition Agreement. Causley shall have entered into the
agreement not to compete with the Company and Purchaser in the form attached
hereto as Exhibit 6.09.


         6.10 Outstanding Indebtedness. The Purchaser shall have been provided
documentary evidence or assurances to the effect that prior to or
contemporaneous with the Closing all of the Company's outstanding indebtedness
(other than the indebtedness to Causley that shall be repaid to Causley at
Closing and liabilities resulting from recharacterization of certain equipment
leases as capital purchases on the Closing Balance Sheet), inclusive of
customary trade payables and accrued expenses consistent with past practice,
does not exceed $942,000.



                                       VII

                                   TERMINATION

         7.01 Termination by Mutual Agreement. This Agreement may be terminated
at any time prior to the Closing by mutual agreement of Seller and Purchaser.

                                       14
<PAGE>   16

         7.02 Termination as a Result of Breach. Either the Seller or Purchaser
may terminate this Agreement at any time prior to the Closing, by giving the
other party written notice thereof, if the other party is in material breach of
any of its representations, warranties, covenants and other obligations under
this Agreement.

         7.03 Purchaser's Right to Terminate. Purchaser may terminate this
Agreement by giving Seller written notice thereof (a) on or before June 30, 2000
if Purchaser (i) is not satisfied with the results of its due diligence review,
or (ii) has not secured reasonable and customary commitments for financing that
would enable Purchaser to consummate the transactions contemplated herein, or
(b) at any time after June 30, 2000 and prior to Closing if the Seller makes a
material change to a Schedule to this Agreement that discloses information that
could, individually or in the aggregate, have a Material Adverse Effect.

         7.04 Delay of Closing. Seller or Purchaser may terminate this Agreement
by giving the other party written notice thereof if the Closing has not occurred
on or before the close of business on July 31, 2000; provided that neither party
shall be entitled to terminate this Agreement pursuant to this Section 7.04 if
such party's breach of this Agreement has prevented the Closing.

         7.05 Effect of Termination. If this Agreement is terminated as provided
in this Article VII, this Agreement shall forthwith become wholly void and of no
effect, without liability of either party to the other, except for the liability
of any party then in breach and Sections 9.01 and 9.12, which will continue in
force and effect.

                                      VIII
                                 INDEMNIFICATION

         8.01 Indemnification by Seller and Causley. Seller and Causley shall
jointly and severally indemnify, defend and hold harmless Purchaser, its
affiliates, and their respective officers, directors, employees, members,
partners and shareholders in their capacities as such (including the successors
of any of the foregoing) from, against and with respect to any claim, liability,
obligation, loss, damage, assessment, judgment, cost or expense (including,
without limitation, reasonable attorneys', environmental consultants' and
accountants' fees and costs) of any kind or character ("Damages"), (subject to
Section 8.05), arising out of or in any manner incident, relating or
attributable to (a) any misrepresentation or breach of warranty by Seller or
Causley contained in this Agreement (subject to Section 9.03), (b) any failure
by Seller or Causley to perform, cause to be performed or observe any covenant
to be performed or observed by Seller or Causley or the Company under this
Agreement, (c) any guaranty to which the Company is a party and which guarantees
amounts payable by, or obligations of, the Seller, Causley or any of their
affiliates or related parties, (d) any liability of the Company under any
agreements, contracts, negotiations and other dealings by the Seller with any
third party concerning the sale of the capital stock or business of the Company,
(e) any liability for federal income or state or local income or franchise Taxes
of the Company, the Seller or Causley that is based upon or measured with
respect to the income of the Company, the Seller or Causley for any period up
through and including the Closing Date, or resulting from any restatement of the
financial statements (including without limitation the inventory position) of
the Company for any year in order to comply with GAAP, (f) any liability for
federal income or state or local income or franchise Taxes of Seller or Causley
based on income for any post-Closing period, (g) any liability of the Seller,
Causley or the Company for Taxes resulting from the transactions contemplated by
this Agreement, including, without limitation, any Taxes resulting from the
disposition, deemed or actual, of assets or stock contemplated by this
Agreement, (h) any liability of the Company relating to insurance

                                       15
<PAGE>   17


coverage under Company policies or plans for persons who were not eligible to be
covered under such policies or plans, (i) any liability of the Company under
certain automobile leases assigned to and assumed by Causley at or prior to the
Closing; (j) any liability for failure of the Company to timely file any reports
required to be filed with any governmental agency with respect to any of the
Company's benefit plans for any period up through and including the Closing
Date; (k) any liability for failure of the Company or any of its benefit plans
to comply with ERISA for any period up through and including the Closing Date;
or (l) any liability of the Company to Alliance-BRG in connection with the
transactions anticipated hereby.

         8.02 Limitations. Notwithstanding the provisions of Section 8.01:

         (a)  Purchaser shall have no right to make a claim for indemnification
for breach by Seller and/or Causley of representations and warranties under
Section 8.01(a) except for the amount by which the aggregate of all claims with
respect to such matters exceeds $25,000; provided, that the foregoing
limitations shall not apply to any claim for indemnification under Sections
8.01(b), (c), (d), (e), (f), (g), (h), (i), (j), (k) or (l). The provisions of
this Section 8.02(a) shall not apply with respect to claims under Section
8.01(a) for breach by Seller or Causley of the representations and warranties
set forth in Sections 1.01, 1.02, 1.03 and 1.04.

         (b)  The right of indemnification provided in Section 8.03 is solely
for the benefit of the parties referred to therein, and such right will not be
extended, either directly or indirectly, to any other person except for
assignees of Purchaser permitted by Section 9.05 hereof or consented to by
Seller and Causley. Except as set forth in the Agreement Not to Compete, the
right of indemnification in Section 8.01 is the sole remedy which Purchaser has
against Seller and Causley for any breach of a representation or warranty
hereunder or for any other claim with respect to, or arising in any matter from,
the transactions contemplated hereunder.

         (c)  If a condition precedent stated in Section 6.01 is not satisfied,
the Seller's Closing Certificate specifies the representation or warranty which
is not correct in all material respects and identifies the reason and underlying
facts therefor in reasonable details (such facts, the "Down-Date Facts"), and
Purchaser at any time thereafter proceeds with the Closing notwithstanding such
unsatisfied condition or incorrectness, then Seller and Causley shall have no
liability to Purchaser or any other party indemnified pursuant to Section 8.01
with respect to the Down-Date Facts to the extent so described.

         8.03 Purchaser's Indemnification. (a) Subject to clause (b) below,
Purchaser agrees to indemnify, defend, and hold harmless Seller and Causley
from, against, and with respect to any Damages (subject to Section 8.05) arising
out of or in any manner incident, relating, or attributable to (1) any
misrepresentation or breach of warranty by Purchaser contained in this
Agreement, (2) any failure by Purchaser to perform or observe any covenant to be
performed or observed by Purchaser under this Agreement, (3) any obligation or
liability relating to any matter as to which Purchaser or the Company is
responsible and which is not then subject to indemnification by Seller and
Causley hereunder or, (4) any liability for federal income or state or local
income or franchise taxes of the Company for any post-Closing period.


         (b) The right of indemnification provided in Section 8.03 is solely for
         the benefit of the parties referred to therein, and such right will not
         be extended, either directly or indirectly, to any other person. The
         right of indemnification in Section 8.03 is the sole remedy which
         Seller and Causley have against Purchaser for any breach of a
         representation or warranty hereunder or for any other claim with
         respect to, or arising in any manner from, the transactions
         contemplated hereunder.

                                       16
<PAGE>   18

         8.04 Procedure. The party requesting indemnification under this Article
VIII (the "indemnified party") shall give the party from whom indemnification is
requested (the "indemnifying party") prompt notice of, and shall reasonably
cooperate with the indemnifying party (including, without limitation, by making
relevant personnel and records available to the indemnifying party at all
reasonable times free of charge) in connection with any claim for which the
indemnified party may seek indemnification from the indemnifying party under
Article VIII, but the failure to give such notice will not affect the
indemnifying party's liability hereunder, except and to the extent it is
actually prejudiced thereby. The indemnifying party shall at its own expense and
with counsel of its choice assume the defense of all third party claims for
which it is obligated to indemnify the indemnified party. The indemnified party
may also at its own expense employ its own counsel to participate in the defense
of any such third party claim. The indemnifying party shall have the absolute
right to settle at its expense any such third party claim; provided, however,
that such settlement shall also require the prior written consent of the
indemnified party where criminal liability is admitted or where any action other
than the payment of money is required or which does not include an unconditional
release of all indemnified parties.

         8.05 Amount. The amount of Damages for which indemnification is
provided (i) under this Article VIII will be computed net of any insurance
proceeds received by the indemnified party in connection with such Damages,
reduced by all costs and expenses related thereto and any premium increase or
expense resulting therefrom and (ii) by Seller and Causley under Section 8.01(a)
will be reduced to the extent such Damages relate to and do not exceed any
applicable reserve or accrual with respect to such Damages provided for or
reflected in the Closing Balance Sheet.



                                       IX
                                     GENERAL

     9.01     Expenses. Except for the services of Alliance-BRG, the cost and
     expenses of which Seller will pay, and the services of Urban "Sandy"
     MacDonald, the cost and expenses of which Purchaser will pay, each party
     represents and warrants to the other party that the services of a broker,
     finder, or financial advisor have not been used by the representing party
     in connection with any of the matters pertaining to the transactions
     contemplated herein. Each party will indemnify the other party, its
     affiliates, and the respective officers, directors, employees, and
     shareholders of the foregoing (other than the indemnifying party) in their
     capacities as such from and against any claim for broker's, finder's, or
     financial advisor's fees, including costs or expenses incurred in
     connection with the defense of any suit claiming such fees, or in any other
     manner pertaining to claims for such fees, which may become payable by
     reason of the acts or omissions of the indemnifying party.


         9.02 Governing Law. This Agreement shall be construed and interpreted,
and the rights of the parties shall be determined, in accordance with the laws
of the State of Michigan, without giving effect to the principles of conflict of
laws of such state.

         9.03 Survival. The representations and warranties contained herein
shall continue in full force and effect after the Closing (a) without
termination in the case of those contained in Sections 1.01, 1.02, 1.03, 1.04,
2.01 and 2.02, (b) until 30 days after the expiration of the statute of
limitations (including any extensions) applicable to Returns relating to any
period prior to or including the Closing, in the case of those contained in
Section 1.12, (c) until the date which is five years after the Closing Date in
the case of

                                       17
<PAGE>   19

those contained in Section 1.15, (d) until the expiration of the statute of
limitations (including any extensions) contained in ERISA, in the case of those
contained in Section 1.17 which relate to compliance with ERISA, and (e) until
two (2) years after the Closing Date in the case of all other representations
and warranties contained herein. No claim for indemnity may be made on account
of the incorrectness of any representation or warranty contained herein unless
prior to the expiration of the applicable survival period the party claiming
indemnity has given proper notice to the party against whom indemnification is
sought. Any claim timely and properly made prior to such expiration shall be
subject to indemnification hereunder notwithstanding any subsequent expiration.

         9.04 Entire Agreement. This Agreement (which term, as used in this
Agreement, includes the Schedules referred to herein) constitutes the entire
agreement among the parties pertaining to the subject matter hereof and
supersedes all prior and contemporaneous agreements, understandings,
negotiations, and discussions, whether oral or written, of the parties including
the letter of intent, and there are no representations, warranties, covenants or
other obligations between the parties in connection with the subject matter
hereof except as set forth specifically herein. No amendment, supplement,
modification, waiver or termination of this Agreement shall be implied or be
binding (including, without limitation, any alleged waiver based on a party's
knowledge of a breach or inaccuracy in any representation or warranty contained
herein except as set forth in Section 8.02(b) above) unless in writing and
signed by the party against which such amendment, supplement, modification,
waiver or termination is asserted. No waiver of a provision of this Agreement
shall be deemed or shall constitute a waiver of any other provision hereof
(whether or not similar), nor shall such waiver constitute a continuing waiver
unless otherwise expressly therein provided.

         9.05 Successors and Assigns. All of the terms and provisions of this
Agreement by or for the benefit of the parties shall be binding upon and inure
to the benefit of their successors, permitted assigns, heirs and personal
representatives. The rights and obligations provided by this Agreement shall not
be assignable and, except as expressly provided herein, nothing herein is
intended to confer upon any person, other than the parties and their successors,
any rights or remedies under or by reason of this Agreement. Notwithstanding the
foregoing, Purchaser may assign its rights as collateral security to the
Purchaser's lenders without the consent of Seller; provided that the foregoing
will not release Purchaser of any of its obligations under this Agreement.

         9.06 Schedules. All instruments or documents to be delivered by any
party to this Agreement shall be in form and content reasonably satisfactory to
the counsel for the party receiving such instrument or document. Seller shall
have the right to amend and update the Schedules referred to in this Agreement
at any time or from time to time prior to Closing. Each Schedule has been
identified by a cover page, and an officer or counsel for each party has
initialed each such cover page for purposes of identification. Each Schedule is
deemed an integral part of this Agreement.

         9.07 Counterparts. This Agreement may be executed simultaneously in two
or more counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same Agreement.

         9.08 Notices. All notices, requests, demands, and other communications
hereunder shall be in writing and shall be deemed to have been duly given
(except as may otherwise be specifically provided herein to the contrary) if
delivered by hand and receipted for by the party to whom said notice or other
communication shall have been directed, if mailed by certified or registered
mail with postage prepaid, if sent by facsimile with receipt confirmed, or if
shipped and receipted by express courier service, charges prepaid by shipper, in
all such cases addressed as follows (or to such other address as may be
designated

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<PAGE>   20

by notice given pursuant hereto), but in any event shall be deemed to have been
duly given no earlier than actual receipt following delivery by any method:

(a)      If to Seller                        Ronald C. Causley
         and Causley:                        4375 Giddings Road
                                             Auburn Hills, MI

                                             with a copy to:

                                             Simcha Shapiro
                                             Spilkin, Shapiro & Feeney, P.C.
                                             29621 Northwestern Highway
                                             Southfield, MI  48086
                                             Fax:  (248) 353-3815

         If to Purchaser                     Nematron Corporation
                                             5840 Interface Drive
                                             Ann Arbor, MI  48103
                                             Attn:  Matthew S. Galvez
                                             Fax:  (734) 994-0352

                                             with a copy to:

                                             Dickinson Wright PLLC
                                             500 Woodward Avenue, Suite 4000
                                             Detroit, Michigan  48226
                                             Attention:  Bernadette M. Dennehy
                                             Fax No.:  (313) 223-3598

         9.09 Knowledge. For purposes of this Agreement, the "knowledge of
Seller and Causley", "Seller's and Causley's knowledge" or any phrase of similar
import will be deemed to mean the actual knowledge, after reasonable inquiry, of
the individuals whose names are listed on Schedule 9.09.

         9.10 Post-Closing Access. Each party will retain the books and records
relating to the businesses of the Company for a period of five years after the
Closing, and will not destroy such books and records without providing the other
party at least 30 days prior written notice. Each party shall afford to the
other reasonable access thereto, and provide reasonable assistance, as may be
necessary for purposes of preparing tax returns, financial statements, or for
such other purposes as such other party may reasonably request. Each party will
have the right to make copies, at its own expense, of such books and records for
any proper purpose.

         9.11 Further Assurances. After the Closing, each of the parties will
execute and deliver from time to time at the request of the other party all such
other instruments as are necessary or appropriate to evidence or effectuate the
transactions contemplated by this Agreement.

         9.12 Expenses. Except as provided in Sections 8.01, 8.05 and 9.01,
regardless of whether the transactions contemplated by this Agreement are
consummated, each party shall pay all fees and expenses incurred by such party
in connection therewith.

                                       19
<PAGE>   21

         9.13 Filing of Returns. (a) Seller and Causley shall prepare and timely
file, or cause to be prepared and timely filed, all Returns that include income
of the Company that are due with respect to any taxable year or other taxable
period ending on or prior to the Closing Date. Seller and Causley shall
determine the manner in which any items of income, gain, deduction, loss or
credit arising out of the respective income, properties and operations of the
Company will be reported or disclosed in such returns; provided, however, that
such Returns will be prepared by treating items on such returns in a manner
consistent with the past practice with respect to such items, unless otherwise
required by law. Seller and Purchaser will provide to each other drafts of all
Tax Returns required to be prepared and filed by it under this Section 9.13 as
soon as reasonably practicable prior to the due date for the filing of such
Returns (including any extensions). As soon as reasonably practicable prior to
the due date for the filing of such Returns (including any extensions), Seller
and Purchaser will notify the other of the existence of any objection it
(specifying in reasonable detail the nature and basis of such objection) may
have to any items set forth on such draft returns. Purchaser and Seller agree to
consult and resolve in good faith any such objection.

         (b) Purchaser shall prepare or cause to be prepared and file or cause
to be filed any Returns of the Company for tax periods which begin before the
Closing Date and end after the Closing Date. The Seller will be liable for the
payment of all Taxes (and entitled to Tax refunds and the deposit with the IRS
pursuant to ss. 444 of the Internal Revenue Code) of the Company which are
attributable to any pre-Closing tax period, whether shown on any original return
or amended return for the period referred to therein. Nothing herein is to be
construed as superseding the terms of paragraph 3.06(b) with respect to Seller's
liability for taxes resulting from work-in-process and unbilled accounts
receivable adjustments. The Company will be liable for the payment of all Taxes
which are attributable to any post-Closing tax period. All transfer,
documentary, sales, use, stamp, registration, value added and other such Taxes
and fees (including any penalties and interest), imposed on the Purchaser or the
Company which are incurred in connection with this Agreement will be borne and
paid by Seller and Causley, when due, and Seller and Causley will, at their own
expense, cause to be filed all necessary returns and other documentation with
respect to all such Taxes and fees.

         (c) In connection with the preparation of Returns, audit examinations
and any administrative or judicial proceedings relating to the Tax liabilities
imposed on the Company for all pre-Closing tax periods, Purchaser and Seller
will cooperate fully with each other, including, but not limited to, the
furnishing or making available during normal business hours of records,
personnel (as reasonably required), books of account, powers of attorney or
other materials necessary or helpful for the preparation of such Returns, the
conduct of audit examinations or the defense of claims by Tax authorities as to
the imposition of Taxes.

         (d) Purchaser will promptly notify Seller in writing upon receipt by
Purchaser or any affiliate of Purchaser (including the Company after the Closing
Date) of written notice of any inquiries, claims, assessments, audits or similar
events with respect to Taxes relating to a pre-Closing tax period for which
Seller and Causley may be liable under this Agreement (any such inquiry, claim,
assessment, audit or similar event, a "Tax Matter"). Seller and Causley at their
sole expense, will have the exclusive authority to represent the interests of
the Company with respect to any Tax Matter before the IRS, any other Taxing
authority, any other governmental agency or authority or any court and will have
the sole right to extend or waive the statute of limitations with respect to a
Tax Matter and to control the defense, compromise or other resolution of any Tax
Matter, including responding to inquiries, filing Tax Returns and settling
audits; provided, however, that Seller and Causley will not enter into any
settlement of or otherwise compromise any Tax Matter that affects or may affect
the Tax liability of Purchaser or the Company or



                                       20

<PAGE>   22


any affiliate of the foregoing for any  post-Closing  tax period,  including the
portion of a period  beginning  before  the  Closing  Date and ending  after the
Closing Date, without the prior written consent of Purchaser. Seller and Causley
will keep Purchaser fully and timely informed with respect to the  commencement,
status and nature of any Tax  Matter.  Seller and Causley  will,  in good faith,
allow  Purchaser  to consult with Seller  regarding  the conduct of or positions
taken in any such proceeding.

         (e) Seller and Causley will not file or cause or permit to be filed any
amended Tax Return for any pre-Closing tax period (of the Company or relating to
amounts for which the Company may be liable) without the prior written consent
of Purchaser, which consent will not be unreasonably withheld or delayed.
Purchaser will not file or cause to be filed any amended return covering any
period or adjusting any Taxes for any pre-Closing tax period without the prior
written consent of Seller, which consent will not be unreasonably withheld or
delayed.

         (f) Effective as of the Closing Date, Seller will terminate any Tax
sharing agreement to which the Company is a party, and the Company will not have
any further obligations thereunder.

         (g) Seller shall remit to Purchaser that portion of any Tax refund any
of them receives for any loss carryback attributable to any post-Closing period
of the Company. Purchaser will forward to Seller that portion of any Tax refunds
received by Purchaser or the Company that are attributable to Taxes assumed or
retained and paid by Seller pursuant to this Agreement.







                                       21

<PAGE>   23


         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date and year first above written.

                                     SELLER:


                                     /s/ Ronald C. Causley, Trustee
                                     -------------------------------------------
                                     Ronald C. Causley, as Trustee
                                     of the Ronald C. Causley Revocable
                                     Trust dated March 14, 1990, as amended


                                     CAUSLEY:


                                     /s/ Ronald C. Causley
                                     -------------------------------------------
                                     Ronald C. Causley



                                     NEMATRON CORPORATION


                                     By:  /s/ David P. Gienapp
                                        ----------------------------------------
                                        Name: David P. Gienapp
                                        Title: Vice President - Finance and
                                               Administration





                                       22





<PAGE>   24


                               SCHEDULES (OMITTED)


Schedule 1.1        Exceptions to Transferability
Schedule 1.2        Jurisdictions where Qualified to Do Business
Schedule 1.5        Material Adverse Change
Schedule 1.6        Exceptions to Title
Schedule 1.8        Leases
Schedule 1.9        Material Contracts
Schedule 1.10       Violations
Schedule 1.11       Litigation
Schedule 1.12       Exceptions to Taxes
Schedule 1.13       Conduct of Business
Schedule 1.14       Intellectual Property
Schedule 1.15       Environmental Exceptions
Schedule 1.16       Compliance with Laws Exceptions
Schedule 1.17       Employee Benefit Plans
Schedule 1.18       Insurance
Schedule 1.20       Employees
Schedule 1.22       Vehicles
Schedule 1.24       Bank Accounts
Schedule 3.04       Calculation of Number of Shares of Nematron Stock
Schedule 9.09       Knowledge



Omitted Schedules will be furnished upon request.






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