DYNECO INTERNATIONAL, INC.

                          1993 CORPORATE STOCK OPTION PLAN


                         PURPOSE; EFFECTIVENESS OF THE PLAN

     The purpose of the DYNECO INTERNATIONAL, INC. 1993 CORPORATE STOCK 
OPTION PLAN (the "Plan") is to advance the interests of DynEco International, 
Inc. (the "Company") and its stockholders by helping the Company obtain and 
retain the services of employees, officers and directors upon whose judgment, 
initiative and efforts the Company is substantially dependent, and to provide 
those persons with further incentives to advance the interests of the Company.

     This Plan will become effective as of May 1, 1993, the date of its 
adoption by the Board, subject to the approval of the Plan by the majority 
vote of the stockholders of the Company entitled to vote (excluding holders 
of shares of Stock issued by the Company pursuant to the exercise of options 
granted under this Plan) prior to April 30, 1994. If the Plan is not so 
approved by the stockholders of the Company, any options granted under this 
Plan will be rescinded and will be void. This Plan will remain in effect 
until it is terminated by the Board or the Committee (as defined hereafter) 
under Section IX hereof except that no ISO (as defined herein) will be 
granted after the tenth anniversary of the date of this Plan's adoption by 
the Board. This Plan will be governed by, and construed in accordance with, 
the laws of the State of Minnesota.

                             I.  CERTAIN DEFINITIONS

     Unless the context otherwise requires, the following defined terms 
(together with other capitalized terms defined elsewhere in this Plan) will 
govern the construction of this Plan, and of any stock option agreements 
entered into pursuant to this Plan:

     A.   "10% STOCKHOLDER" means a person who owns, either directly or
        indirectly by virtue of the ownership attribution provisions set forth
        in Section 424(d) of the Code at the time he or she is granted an 
        Option, stock possessing more than ten percent (10%) of the total 
        combined voting power or value of all classes of stock of the Company
        and/or of its subsidiaries;

     B.   "1933 ACT" means the Securities Act of 1933, as amended;

     C.   "1934 ACT" means the Securities Exchange Act of 1934, as amended;

                                         1



     D.   "BOARD" means the Board of Directors of the Company;

     E.   "CALLED FOR UNDER AN OPTION," or words to similar effect, means
        issuable pursuant to the exercise of an Option;

     F.   "CODE" means the Internal Revenue Code of 1986, as amended 
        (references herein to Sections of the Code are intended to refer to
        Sections of the Code as enacted at the time of this Plan's adoption 
        by the Board and as subsequently amended, or to any substantially 
        similar successor provisions of the Code resulting from recodification,
        renumbering or otherwise);

     G.   "COMMITTEE" means a committee of two or more individuals, appointed 
        by the Board, to administer and interpret this Plan; provided that the
        term "Committee" will refer to the Board during such times as no 
        Committee is appointed by the Board;

     H.   "COMPANY" means DynEco International, Inc., a Minnesota corporation;

     I.   "DISABILITY" has the same meaning as "permanent and total 
        disability," as defined in Section 22(e)(3) of the Code;

     J.   "ELIGIBLE PARTICIPANTS" means persons who, at a particular time, are
        employees, officers, or directors of the Company or its subsidiaries;

     K.   "FAIR MARKET VALUE" means, with respect to the Common Stock, the
        following:

        1.   If the Common Stock is listed or admitted to unlisted trading
        privileges on any national securities exchange or is not so listed or
        admitted but transactions in the Common Stock are reported on the
        NASDAQ National Market System, the last sale price of the Common Stock
        on such exchange or reported by the NASDAQ National Market System as
        of such date (or, if no shares were traded on such day, as of the next
        preceding day on which there was such a trade); or

        2.   If the Common Stock is not listed or admitted to unlisted trading
        privileges or reported on the NASDAQ National Market System, and bid
        and asked prices therefor in the over-the-counter market are reported
        by the NASDAQ System or the National Quotation Bureau, Inc. (or any
        comparable reporting service), the mean of the closing bid and asked
        prices as of such date, as so reported by the NASDAQ System, or, if
        not so reported thereon, as 

                                         2



        reported by the National Quotation Bureau, Inc. (or such comparable 
        reporting service).

        3.   If the Common Stock is not so listed or admitted to unlisted
        trading privileges, or reported on the NASDAQ National Market System,
        and such bid and asked prices are not so reported, such price as the
        Committee determines in good faith in the exercise of its reasonable
        discretion.

     L.   "ISO" has the same meaning as "incentive stock option," as
        defined in Section 422 of the Code;

     M.   "JUST CAUSE TERMINATION" means a termination by the Company of an
        Optionee's employment by and/or service to the Company (or if the 
        Optionee is a director, removal of the Optionee from the Board by 
        action of the stockholders or, if permitted by applicable law and the
        by-laws of the Company, the other directors), in connection with the 
        good faith determination of the Company's Board of Directors (or of 
        the Company's stockholders if the Optionee is a director and the 
        removal of the Optionee from the Board is by action of the 
        stockholders, but in either case excluding the vote of the Optionee if
        he or she is a director or a stockholder) that the Optionee has engaged
        in any acts involving dishonesty or moral turpitude or in any acts that
        materially and adversely affect the business, affairs or reputation of
        the Company or its subsidiaries;

     N.   "NSO" means any option granted under this Plan whether designated
        by the Committee as a "non-qualified stock option," a "non-statutory 
        stock option" or otherwise, other than an option designated by the 
        Committee as an ISO, or any option so designated but which, for any 
        reason, fails to qualify as an ISO pursuant to Section 422 of the Code
        and the rules and regulations thereunder;

     O.   "OPTION" means an option granted pursuant to this Plan entitling
        the option holder to acquire shares of Stock issued by the Company 
        pursuant to the valid exercise of the option;

     P.   "OPTION AGREEMENT" means an agreement between the Company and an
        Optionee, in form and substance satisfactory to the Committee in its
        sole discretion, consistent with this Plan;

     Q.   "OPTION PRICE" with respect to any particular Option means the
        exercise price at which the Optionee may acquire each share of the 
        Option Stock called for under such Option;

                                            3



     R.   "OPTION STOCK" means Common Stock issued or issuable by the
        Company pursuant to the valid exercise of an Option;

     S.   "OPTIONEE" means an Eligible Participant to whom Options are
        granted hereunder, and any transferee thereof pursuant to a Transfer
        authorized under this Plan;

     T.   "PLAN" means this 1993 Corporate Stock Option Plan of the Company;

     U.   "PREVIOUSLY ACQUIRED SHARES" means shares of Company Common Stock
        that are already owned by the Eligible Participant;

     V.   "STOCK" means shares of the Company's Common Stock, no par value;

     W.   "SUBSIDIARY" has the same meaning as "Subsidiary Corporation" as
        defined in Section 424(f) of the Code;

     X.   "TRANSFER," with respect to Option Stock, includes, without
        limitation, a voluntary or involuntary sale, assignment, transfer, 
        conveyance, pledge, hypothecation, encumbrance, disposal, loan, gift,
        attachment or levy of such Option Stock, including without limitation 
        an assignment for the benefit of creditors of the Optionee, a transfer
        by operation of law, such as a transfer by will or under the laws of 
        descent and distribution, an execution of judgment against the Option 
        Stock or the acquisition of record or beneficial ownership thereof by a
        lender or creditor, a transfer pursuant to a QDRO, or to any decree of
        divorce, dissolution or separate maintenance, any property settlement, 
        any separation agreement or any other agreement with a spouse (except 
        for estate planning purposes) under which a part or all of the shares 
        of Option Stock are transferred or awarded to the spouse of the 
        Optionee or are required to be sold; or a transfer resulting from the
        filing by the Optionee of a petition for relief, or the filing of an 
        involuntary petition against such Optionee, under the bankruptcy laws
        of the United States or of any other nation.

                                II.  ELIGIBILITY

     Participants in the Plan shall be those Eligible Participants who, in 
the judgment of the Committee, are performing, or during the term of an 
option will perform, services in management, operation and development of the 
Company or any Subsidiary, and significantly contributed, are significantly 
contributing or are expected to significantly contribute to the achievement 
of corporate objectives. Eligible Participants may be granted from 

                                     4



time to time one or more Options, as may be determined by the Committee in 
its sole discretion. The number, type, terms and conditions of the Options 
granted to various Eligible Participants need not be uniform, consistent or 
in accordance with any plan, regardless of whether such Eligible Participants 
are similarly situated. Upon determination by the Committee that an Option is 
to be granted to an Eligible Participant, written notice shall be given such 
person, specifying the terms, conditions, rights and duties related thereto. 
Each Eligible Participant to whom an Option is to be granted shall enter into 
an agreement with the Company, in such form as the Committee shall determine 
and which is consistent with the provisions of the Plan, specifying such 
terms, conditions, rights and duties. Options shall be deemed to be granted 
as of the date specified in the grant resolution of the Committee, and the 
related option agreements shall be dated as of such date.

                              III.  ADMINISTRATION

     A.   COMMITTEE. The Committee, if appointed by the Board, will 
administer this Plan. If the Board, in its discretion, does not appoint such 
a Committee, the Board itself will administer this Plan and take such other 
actions as the Committee is authorized to take hereunder; provided that the 
Board may take such actions hereunder in the same manner as the Board may 
take other actions under the Company's articles of incorporation and by-laws 
generally.

     A majority of the Committee shall constitute a quorum. Action of such 
Committee may be taken without a meeting if unanimous written consent is 
given. Such Committee shall act by majority approval of the members, shall 
keep minutes of its meetings and written action, and shall provide copies of 
such minutes to the Board. Copies of the minutes and written action shall be 
kept with the written records of the Company.

     From and after the date on which the Company first registers a class of 
its equity securities under Section 12 of the 1934 Act, the Plan shall be 
administered by the Board, all of whom shall be "disinterested persons" 
within the meaning of Rule 16b-3 under the 1934 Act, or a committee 
consisting solely of not fewer than two members of the Board who are such 
"disinterested persons."

     B.   AUTHORITY AND DISCRETION OF COMMITTEE. The Committee will have full 
and final authority in its discretion, at any time and from time to time, 
subject only to the express terms, conditions and other provisions of the 
Company's articles of incorporation, by-laws and this Plan, and the specific 
limitations on such discretion set forth herein:

     1.   to select and approve the persons who will be granted Options under
     this Plan from among the Eligible Participants, 

                                       5



     and to grant to any person so selected one or more Options to purchase 
     such number of shares of Option Stock as the Committee may determine;

     2.   to determine the period or periods of time during which options may 
     be exercised, the Option Price and the duration of such Options, and other
     matters to be determined by the Committee in connection with specific
     Option grants and Option Agreements as specified under this Plan;

     3.   to interpret this Plan, to prescribe, amend and rescind rules and
     regulations relating to this Plan, and to make all other determinations
     necessary or advisable for the operation and administration of this Plan;
     and

     4.   to delegate all or a portion of its authority under subsections 1, 2
     and 3 of this Section III to one or more directors of the Company who are
     executive officers of the Company, but only in connection with Options
     granted to Eligible Participants who are not subject to the reporting and
     liability provisions of Section 16 of the 1934 Act, and the rules and
     regulations thereunder, and subject to such restrictions and limitations
     (such as the aggregate number of shares of Option Stock called for by such
     Options that may be granted) as the Committee may decide to impose on such
     delegate directors.

     C.   LIMITATION ON AUTHORITY. Notwithstanding the foregoing, or any 
other provision of this Plan, the Committee will have no authority:

     1.   to grant options to any of its members, whether or not approved by the
     Board; and

     2.   to determine any matters, or exercise any discretion, in connection
     with the Options, to the extent that the power to make such determinations
     or to exercise such discretion would cause one or more members of the
     Committee no longer to be "disinterested persons" within the meaning of
     Section III.A. above.

     D.   DESIGNATION OF OPTIONS. Except as otherwise provided herein, the 
Committee will designate any Option granted hereunder either as an ISO or as 
an NSO. To the extent that the Fair Market Value (determined at the time the 
Option is granted) of Stock with respect to which all ISOs are exercisable 
for the first time by any individual during any calendar year (pursuant to 
this Plan and all other plans of the Company and/or its Subsidiaries) exceeds 
$100,000, such option will be treated as an NSO. Notwithstanding the general 
eligibility provisions of Section II hereof, the Committee may grant ISOs 
only to persons who are employees of the Company and/or its Subsidiaries.

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     E.   OPTION AGREEMENTS. Options will be deemed granted hereunder only 
upon the execution and delivery of an Option Agreement by the optionee and a 
duly authorized executive officer of the Company. Options will not be deemed 
granted hereunder merely upon the authorization of such grant by the 
Committee.

                        IV.  SHARES RESERVED FOR OPTIONS

     A.   OPTION POOL. The aggregate number of shares of Option Stock that 
may be issued pursuant to the exercise of Options granted under this Plan 
shall be Seven Hundred Fifty Thousand (750,000) (the "Option Pool"), provided 
that such number will be increased by the number of shares of Option Stock 
that the Company subsequently may reacquire through repurchase or otherwise. 
Shares of Option Stock that would have been issuable pursuant to Options, but 
that are no longer issuable because all or part of those Options have 
terminated or expired, will be deemed not to have been issued for purposes of 
computing the number of shares of Option Stock remaining in the Option Pool 
and available for issuance.

     The maximum number of shares authorized may also be increased from time 
to time by approval of the Board and, if required pursuant to Rule 16b-3 
under the 1934 Act, Section 422 of the Code, or the applicable rules of any 
securities exchange or NASDAQ and/or NASD, the shareholders of the Company.

     B.   ADJUSTMENTS UPON CHANGES IN STOCK. In the event of any change in 
the outstanding Stock of the Company as a result of a stock split, reverse 
stock split, stock dividend, recapitalization, combination or 
reclassification, reorganization, merger, consolidation, liquidation, rights 
offering, extraordinary dividend or divesture (including a spin-off) or any 
other change in the corporate structure or shares of the Company, appropriate 
proportionate adjustments will be made (in order to prevent dilution or 
enlargement of Eligible Participants) in: (1) the aggregate number of shares 
of Option Stock in the Option Pool that may be issued pursuant to the 
exercise of Options granted hereunder; (2) the Option Price and the number of 
shares of Option Stock called for in each outstanding Option granted 
hereunder; and (3) other rights and matters determined on a per share basis 
under this Plan or any Option Agreement hereunder. Any such adjustments will 
be made only by the Board (or, if the Company is not the surviving 
corporation in any such transaction, the board of directors of the surviving 
corporation), and when so made will be effective, conclusive and binding for 
all purposes with respect to this Plan and all Options then outstanding. No 
such adjustments will be required by reason of the issuance or sale by the 
Company for cash or other consideration of additional shares of its Stock or 
securities convertible into or exchangeable for shares of its Stock.

                                   7



                      V.  TERMS OF STOCK OPTION AGREEMENTS

     Each Option granted pursuant to this Plan will be evidenced by an 
agreement (an "Option Agreement") between the Company and the person to whom 
such Option is granted, in form and substance satisfactory to the Committee 
in its sole discretion, consistent with this Plan. Without limiting the 
foregoing, each Option Agreement (unless otherwise stated therein) will be 
deemed to include the following terms and conditions:

     A.   COVENANTS OF OPTIONEE. At the discretion of the Committee, the 
person to whom an Option is granted hereunder, as a condition to the granting 
of the Option, must execute and deliver to the Company a confidential 
information agreement approved by the Committee. Nothing contained in this 
Plan, any Option Agreement or in any other agreement executed in connection 
with the granting of an Option under this Plan will confer upon any Optionee 
any right with respect to the continuation of his or her status as an 
employee of, officer of, or director of, the Company or its subsidiaries.

     B.   VESTING. An Option shall become exercisable at such times and in 
such installments (which may be cumulative) as shall be determined by the 
Committee in its sole discretion at the time the Option is granted. Upon the 
completion of its exercise period, an Option, to the extent not then 
exercised, shall expire.

     C.   EXERCISE OF THE OPTION.

     1.   MECHANICS AND NOTICE. An Option may be exercised to the extent
     exercisable (a) by giving written notice of exercise to the Company, 
     specifying the number of full shares of Option Stock to be purchased and
     accompanied by full payment of the Option Price thereof and the amount of
     withholding taxes pursuant to subsection V.C.2 below; and (b) by giving 
     assurances satisfactory to the Company that the shares of Option Stock to
     be purchased upon such exercise are being purchased for investment and not
     with a view to resale in connection with any distribution of such shares 
     in violation of the 1933 Act; provided, however, that in the event the 
     Option Stock called for under the Option is registered under the 1933 Act,
     or in the event resale of such Option Stock without such registration 
     would otherwise be permissible, this second condition will be inoperative
     if, in the opinion of counsel for the Company, such condition is not 
     required under the 1933 Act, or any other applicable law, regulation or
     rule of any governmental agency.

     2.   WITHHOLDING TAXES. As a condition to the issuance of the shares of
     Option Stock upon full or partial exercise of an Option granted under this
     Plan, the Optionee will pay to the Company in cash, or in such other form
     as the Committee may 

                                      8



     determine in its discretion, the amount of the Company's tax withholding
     liability required in connection with such exercise. For purposes of this
     subsection V.C.2, "tax withholding liability" will mean all federal and 
     state income taxes, social security tax, and any other taxes applicable to
     the compensation income arising from the transaction required by 
     applicable law to be withheld by the Company.

     3.   PAYMENT OF OPTION PRICE. Each Option Agreement will specify the 
     Option Price with respect to the exercise of Option Stock thereunder, to 
     be fixed by the Committee in its discretion, but in no event will the 
     Option Price for an ISO granted hereunder be less than one hundred 
     (100%) percent of the Fair Market Value (or, in case the Optionee is a 
     10% Stockholder, one hundred ten (110%) percent of such Fair Market Value)
     of the Option Stock at the time such ISO is granted, and in no event will
     the Option Price for an NSO granted hereunder be less than eighty-five 
     (85%) percent of Fair Market Value. The Option Price will be payable to 
     the Company in United States dollars in cash or by check or, such other 
     form of consideration as may be approved by the Committee, in its 
     discretion.

     In determining whether or upon what terms and conditions an Eligible
     Participant will be permitted to pay the purchase price of an Option in a
     form other than cash, the Committee may consider all relevant facts and
     circumstances, including, without limitation, the tax and securities law
     consequences to the Company. In the event the Eligible Participant is
     permitted to pay the purchase price of an Option in whole or in part with
     Previously Acquired Shares and/or the surrender of Options, the value of
     such Previously Acquired Shares and/or the shares covered by such Options
     shall be equal to their Fair Market Value on the date of exercise of the
     Option.

     D.   TERMINATION OF THE OPTION. Except as otherwise provided herein, 
each Option Agreement will specify the period of time, to be fixed by the 
Committee in its discretion, during which the Option granted therein will be 
exercisable, not to exceed ten years from the date of grant in the case of an 
ISO (the "Option Period"); provided that the Option Period will not exceed 
five years from the date of grant in the case of an ISO granted to a 10% 
Stockholder. To the extent not previously exercised, each Option will 
terminate upon the expiration of the Option Period specified in the Option 
Agreement; provided, however, that each such Option will terminate, if 
earlier: (i) ninety days after the date that the Optionee ceases to be an 
Eligible Participant for any reason, other than by reason of death or 
disability; (ii) twelve months after the date that the Optionee ceases to be 
an Eligible Participant by reason of such person's death or disability; or 
(iii) immediately as of the date that the Optionee ceases to be an Eligible 
Participant by reason of a Just Cause Termination. In the event of a sale or 
all 

                                    9



or substantially all of the assets of the Company, or a merger or 
consolidation or other reorganization in which the Company is not the 
surviving corporation, or in which the Company becomes a subsidiary of 
another corporation (any of the foregoing events, a "Corporate Transaction"), 
then notwithstanding anything else herein, the right to exercise all then 
outstanding Options will vest immediately prior to such Corporate Transaction 
and will terminate immediately after such Corporate Transaction; provided, 
however, that if the Board, in its sole discretion, determines that such 
immediate vesting of the right to exercise outstanding Options is not in the 
best interests of the Company, then the successor corporation must agree to 
assume the outstanding Options or substitute therefor comparable options of 
such successor corporation or a parent or subsidiary of such successor 
corporation.

     Unless the committee shall otherwise determine in its sole discretion, 
an Eligible Participant's employment or other service shall, for purposes of 
the Plan, be deemed to have terminated on the date such Eligible Participant 
ceases to perform services for the Company and all Subsidiaries, as 
determined in good faith by the Committee.

     E.   OPTIONS NONTRANSFERABLE. No Option will be transferable by the 
Optionee otherwise than by will or the laws of descent and distribution, or 
in the case of an NSO, pursuant to a qualified domestic relations order (as 
defined by the Code). During the lifetime of the Optionee, the Option will be 
exercisable only by him or her, or the transferee of an NSO if it was 
transferred pursuant to a qualified domestic relations order.

     F.   QUALIFICATION OF STOCK. The right to exercise an Option will be 
further subject to the requirement that if at any time the Board determines, 
in its discretion, that the listing, registration or qualification of the 
shares of Option Stock called for thereunder upon any securities exchange or 
under any state or federal law, or the consent or approval of any 
governmental regulatory authority, is necessary or desirable as a condition 
of or in connection with the granting of such Option or the purchase of 
shares of Option Stock thereunder, the Option may not be exercised, in whole 
or in part, unless and until such listing, registration, qualification, 
consent or approval is effected or obtained free of any conditions not 
acceptable to the Board, in its discretion.

     G.   ADDITIONAL RESTRICTIONS ON TRANSFER. By accepting Options and/or 
Option Stock under this Plan, the Optionee will be deemed to represent, 
warrant and agree as follows:

     1.   SECURITIES ACT OF 1933. The Optionee understands that the shares of
     Option Stock have not been registered under the 1933 Act, and that such
     shares are not freely tradeable and must be 

                                     10



     held indefinitely unless such shares are either registered under the 
     1933 Act or an exemption from such registration is available. The 
     Optionee understands that the Company is under no obligation to register
     the shares of Option Stock.

     2.   OTHER APPLICABLE LAWS. The Optionee further understands that Transfer
     of the Option Stock requires full compliance with the provisions of all
     applicable laws.

     3.   INVESTMENT INTENT. Unless a registration statement is in effect with
     respect to the sale of Option Stock obtained through exercise of Options
     granted hereunder: (a) Upon exercise of any Option, the Optionee will
     purchase the Option Stock for his or her own account and not with a view 
     to distribution within the meaning of the 1933 Act, other than as may be
     effected in compliance with the 1933 Act and the rules and regulations
     promulgated thereunder; (b) no one else will have any beneficial interest
     in the Option Stock; and (c) he or she has no present intention of
     disposing of the Option Stock at any particular time.

     H.   COMPLIANCE WITH LAW. Notwithstanding any other provision of this 
Plan, Options may be granted pursuant to this Plan, and Option Stock may be 
issued pursuant to the exercise thereof by an Optionee, only after there has 
been compliance with all applicable federal and state securities laws, and 
all of the same will be subject to this overriding condition. The Company 
will not be required to register or qualify Option Stock with the Securities 
and Exchange Commission or any State agency, except that the Company will 
register with, or as required by local law, file for and secure an exemption 
from such registration requirements from, the applicable securities 
administrator and other officials of each jurisdiction in which an Eligible 
Participant would be granted an Option hereunder prior to such grant.

     I.   STOCK CERTIFICATES. Certificates representing the Option Stock 
issued pursuant to the exercise of Options will bear all legends required by 
law and necessary to effectuate this Plan's provisions. The Company may place 
a "stop transfer" order against shares of the Option Stock until all 
restrictions and conditions set forth in this Plan have been complied with.

     Unless a registration statement under the 1933 Act and applicable state 
securities laws is in effect with respect to the issuance or transfer of the 
shares of Stock under the Plan, each certificate representing any such shares 
shall be endorsed with a legend in substantially the following form, unless 
counsel for the Company is of the opinion as to any such certificate that 
such legend is unnecessary:

     THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
     UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR UNDER
     APPLICABLE STATE SECURITIES LAWS. THESE 

                                      11



     SECURITIES HAVE ACQUIRED FOR INVESTMENT AND MAY NOT BE OFFERED FOR SALE,
     SOLD, ASSIGNED, TRANSFERRED, PLEDGED, OR ENCUMBERED OR OTHERWISE DISPOSED
     OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT 
     AND SUCH STATE LAWS OR PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER 
     THE ACT AND SUCH STATE LAWS, THE AVAILABILITY OF WHICH IS TO BE 
     ESTABLISHED TO THE SATISFACTION OF THE COMPANY.

     J.   NOTICES. Any notice to be given to the Company under the terms of 
an Option Agreement will be addressed to the Company at its principal 
executive office, Attention: Corporate Secretary, or at such other address as 
the Company may designate in writing. Any notice to be given to an Optionee 
will be addressed to the Optionee at the address provided to the Company by 
the Optionee. Any such notice will be deemed to have been duly given if and 
when enclosed in a properly sealed envelope, addressed as aforesaid, 
registered and deposited, postage and registry fee prepaid, in a post office 
or branch post office regularly maintained by the United States Government.

     K.   OTHER PROVISIONS. The Option Agreement may contain such other 
terms, provisions and conditions, including such special forfeiture 
conditions, rights of repurchase, rights of first refusal and other 
restrictions on Transfer of Option Stock issued upon exercise of any Options 
granted hereunder, not inconsistent with this Plan, as may be determined by 
the Committee in its sole discretion.

     L.   RIGHTS AS A SHAREHOLDER. The Eligible Participant shall have no 
rights as a shareholder with respect to any shares of Company Common Stock 
covered by an Option until the Optionee shall have become the holder of 
record of such shares.

     M.   EMPLOYMENT OF SERVICE. Nothing in this Plan shall interfere with or 
limit in any way the right of the Company or any Subsidiary to terminate the 
employment or service of any Eligible Participant at any time, nor confer 
upon any Eligible Participant any right to continue in the employ or service 
of the Company or any Subsidiary.

     N.   NON-EXCLUSIVITY OF THE PLAN. Nothing contained in the Plan is 
intended to amend, modify or rescind any previously approved compensation 
plans or programs entered into by the Company. The Plan will be construed to 
be in addition to any and all other plans or programs. Neither the adoption 
of the plan nor the submission of the Plan to the shareholders of the Company 
for approval will be construed as creating any limitations on the power or 
authority of the Board to adopt such additional or other compensation 
arrangements as the Board may deem necessary or desirable.

                                      12



                        VI.  PROCEEDS FROM SALE OF STOCK

     Cash proceeds from the sale of shares of Option Stock issued from time 
to time upon the exercise of Options granted pursuant to this Plan will be 
added to the general funds of the Company and as such will be used from time 
to time for general corporate purposes.

              VII.  MODIFICATION, EXTENSION AND RENEWAL OF OPTIONS

     Subject to the terms and conditions and within the limitations of this 
Plan, the Committee may modify, extend or renew outstanding Options granted 
under this Plan, or accept the surrender of outstanding Options (to the 
extent not theretofore exercised) and authorize the granting of new Options 
in substitution therefor (to the extent not theretofore exercised). 
Notwithstanding the foregoing, however, no modification of any Option will, 
without the consent of the holder of the Option, alter or impair any rights 
or obligations under any Option theretofore granted under this Plan.

                       VIII.  AMENDMENT AND DISCONTINUANCE

     The Board may amend, suspend or discontinue this Plan at any time or 
from time to time; provided that no action of the Board will cause ISOs 
granted under this Plan not to comply with Section 422 of the Code unless the 
Board specifically declares such action to be made for that purpose and 
provided further that no such action may, without the approval of the 
stockholders of the Company, materially increase (other than by reason of an 
adjustment pursuant to Section IV.B hereof) the maximum aggregate number of 
shares of Option Stock in the Option Pool that may be issued under Options 
granted pursuant to this Plan or materially increase the benefits accruing to 
Plan participants or materially modify eligibility requirements for the 
participants. Moreover, no such action may alter or impair any Option 
previously granted under this Plan without the consent of the holder of such 
Option.

                      IX.  PLAN COMPLIANCE WITH RULE 16B-3

     With respect to persons subject to Section 16 of the 1934 Act, 
transactions under this plan are intended to comply with all applicable 
conditions of Rule 16b-3 or its successors under the 1934 Act. To the extent 
any provision of the Plan or action by the Plan administrators fails so to 
comply, it shall be deemed null and void, to the extent permitted by law and 
deemed advisable by the Plan administrators.

                                       13



                                X.  MISCELLANEOUS

     A.   CONSTRUCTION AND HEADINGS. The use of the masculine gender shall 
also include within its meaning the feminine, and the singular may include 
the plural and the plural may include the singular, unless the context 
clearly indicates to the contrary. The headings of the Sections and subparts 
of the Plan are for convenience of reading only and are not meant to be of 
substantive significance and shall not add or detract from the meaning of 
such Section or subpart.

     B.   GOVERNING LAW. The place of administration of the Plan shall be 
conclusively deemed to be within the State of Minnesota, and the rights and 
obligations of any and all persons having or claiming to have had an interest 
under the Plan or under any agreements evidencing Options shall be governed 
by and construed exclusively and solely in accordance with the laws of the 
State of Minnesota without regard to the conflict of laws provisions of any 
jurisdiction. All parties agree to submit to the jurisdiction of the state 
and federal courts of Minnesota with respect to matters relating to the Plan 
and agree not to raise or assert the defense that such forum is not 
convenient for such party.

     C.   SUCCESSORS AND ASSIGNS. This Plan shall be binding upon and inure 
to the benefit of the successors and permitted assigns of the Company, 
including without limitation, whether by way of merger, consolidation, 
operation of law, assignment, purchase or other acquisition of substantially 
all of the assets or business of the Company, and any and all such successors 
and assigns shall absolutely and unconditionally assume all of the Company's 
obligations under the Plan.

     D.   SURVIVAL OF PROVISIONS. The rights, remedies, agreements, 
obligations and covenants contained in or made pursuant to the plan, any 
agreement evidencing an Option and any other notices or agreements in 
connection therewith, including, without limitation, any notice of exercise 
of an Option, shall survive the execution and delivery of such notices and 
agreements and the delivery and receipt of shares of Common stock and shall 
remain in full force and effect.

                               XI.  COPIES OF PLAN

     A copy of this Plan will be delivered to each Optionee at or before the 
time he or she executes an Option Agreement.

                             _______________________
 
                                       14



[SPECIMEN FORM]
                           DYNECO INTERNATIONAL, INC.

                        1993 CORPORATE STOCK OPTION PLAN

                             Stock Option Agreement
                                  Form DYNCASH

     THIS AGREEMENT is made as of ______________, 199___, between DynEco 
International, Inc., a Minnesota corporation (the "Company"), and 
_________________________  (the "Optionee").

THE PARTIES AGREE AS FOLLOWS:

     1.   OPTION GRANT. The Company hereby grants to the Optionee an option 
(the "Option") to purchase the number of shares of the Company's Common Stock 
(the "Shares"), for an exercise price per share (the "Option Price") and 
based upon a Grant Date, all as set forth below:

          Shares under option:     __________

          Option Price per Share:  $_________

          Grant Date:              __________, 199___

The Option will be subject to all of the terms and conditions set forth 
herein and in the Company's 1993 Corporate Stock Option Plan (the "Option 
Plan"), a copy of which is attached hereto and incorporated by reference. The 
Option granted hereunder will be a nonstatutory or nonqualified option for 
tax purposes.

     2.   STOCKHOLDER RIGHTS. No rights or privileges of a stockholder in the 
Company are conferred by reason of the granting of the Option. Optionee will 
not become a stockholder in the Company with respect to the Shares unless and 
until the Option has been properly exercised and the Option Price fully paid 
as to the portion of the Option exercised.

     3.   TERMINATION. Subject to earlier termination as provided in the 
Option Plan, this Option will expire, unless previously exercised in full, on 
December __, 199__.

     4.   TERMS OF THE OPTION PLAN. The Optionee understands that the Option 
Plan includes important terms and conditions that apply to this Option. Those 
terms include (without limitation): important conditions to the right of the 
Optionee to exercise the Option; important restrictions on the ability of the 
Optionee to transfer the Option or to transfer Shares received upon exercise 
of the Option; and early termination of the Option following the occurrence 
of certain events, including the Optionee no longer 

                                      15



being an officer, director or employee to or of the Company or its 
subsidiaries. The Optionee acknowledges that he or she has read the Option 
Plan, agrees to be bound by its terms, and makes each of the representations 
required to be made by the Optionee under it.

     5.   MISCELLANEOUS. This Agreement (together with the Option Plan) sets 
forth the complete agreement of the parties concerning the subject matter 
hereof, superseding all prior agreements, negotiations and understandings. 
This Agreement will be governed by the substantive law of the State of 
Minnesota, and may be executed in counterparts.

     The parties hereby have entered into this Agreement as of the date set 
forth above.

                         DYNECO INTERNATIONAL, INC.

                         By_____________________________________
                              An Authorized Officer



                         OPTIONEE

                         _______________________________________
                         Address:

                         _______________________________________

                         _______________________________________

                         _______________________________________



Attachments:   (1) Spousal Consent
               (2) 1993 Corporate Stock Option Plan


                                          16




                                 SPOUSAL CONSENT

     The undersigned is the spouse of the Optionee referred to in the 
attached DynEco International, Inc. 1993 Corporate Stock Option Plan 
Agreement (the "Agreement"). The undersigned acknowledges that he or she:

     1.   has received, reviewed and understands the terms of the Agreement
     (including its attachments);

     2.   consents to the Agreement, and agrees to be bound by its terms to the
     extent that he or she now has or may obtain any interest in the Option or
     Shares covered by the Agreement; and

     3.   understands that the Company is relying upon this consent in entering
     into the Agreement and in not taking further steps to protect its
     interests.

Date: ____________, 199___

                              _______________________________________
                              Print Name:

                              _______________________________________





[SPECIMEN FORM]

                           DYNECO INTERNATIONAL, INC.

                        1993 CORPORATE STOCK OPTION PLAN

                             Stock Option Agreement
                                 Form DYNNOCASH

     THIS AGREEMENT is made as of __________, 199___, between DynEco 
International, Inc., a Minnesota corporation (the "Company"), and 
____________________  (the "Optionee").

     THE PARTIES AGREE AS FOLLOWS:

     1.   OPTION GRANT. The Company hereby grants to the Optionee an option 
(the "Option") to purchase the number of shares of the Company's Common Stock 
(the "Shares"), for an exercise price per share (the "Option Price") and 
based upon a Grant Date, all as set forth below:

          Shares under option: ________________

          Option Price Per Share:  $ __________

          Grant Date: __________, 199___

The Option will be subject to all of the terms and conditions set forth 
herein and in the Company's 1993 Corporate Stock Option Plan (the "Option 
Plan"), a copy of which is attached hereto and incorporated by reference. The 
Option granted hereunder will be a nonstatutory or nonqualified option for 
tax purposes.

     2.   EXERCISE PRICE. The Optionee may pay the Option Price for Shares, 
in his or her sole discretion, by either:

          (a)  by paying the Option Price in cash; or

          (b)  by paying with Previously Acquired Shares; or

          (c)  by paying the Option Price through surrendering that number
               of Options covering the number of underlying shares of
               Common Stock the fair market value of which shares equal the
               Option Price.

     3.   STOCKHOLDER RIGHTS. No rights or privileges of a stockholder in the 
Company are conferred by reason of the granting of the Option. Optionee will 
not become a stockholder in the Company with respect to the Shares unless and 
until the Option has been properly exercised and the Option Price fully paid 
as to the portion of the Option exercised.

     4.   TERMINATION. Subject to earlier termination as provided in the 
Option Plan, this Option will expire, unless previously exercised in full, on 
December ___, 199___.



     5.   TERMS OF THE OPTION PLAN. The Optionee understands that the Option 
Plan includes important terms and conditions that apply to this Option. Those 
terms include (without limitation): important conditions to the right of the 
Optionee to exercise the Option; important restrictions on the ability of the 
Optionee to transfer the Option or to transfer Shares received upon exercise 
of the Option; and early termination of the Option following the occurrence 
of certain events, including the Optionee no longer being an officer, 
director or employee to or of the Company or its subsidiaries. THE OPTIONEE 
ACKNOWLEDGES THAT HE OR SHE HAS READ THE OPTION PLAN, AGREES TO BE BOUND BY 
ITS TERMS, AND MAKES EACH OF THE REPRESENTATIONS REQUIRED TO BE MADE BY THE 
OPTIONEE UNDER IT.

     6.   MISCELLANEOUS. This Agreement (together with the Option Plan) sets 
forth the complete agreement of the parties concerning the subject matter 
hereof, superseding all prior agreements, negotiations and understandings. 
This Agreement will be governed by the substantive law of the State of 
Minnesota, and may be executed in counterparts.

     The parties hereby have entered into this Agreement as of the date set 
forth above.

                         DYNECO INTERNATIONAL, INC.

                         By _______________________________________
                              An Authorized Officer



                         OPTIONEE


                         _______________________________________
                         Address:

                         _______________________________________

                         _______________________________________

                         _______________________________________


Attachments:   (l) Spousal Consent
               (2) 1993 Corporate Stock Option Plan


                                      2



                                 SPOUSAL CONSENT

     The undersigned is the spouse of the Optionee referred to in the 
attached DynEco International, Inc. 1993 Corporate Stock Option Plan 
Agreement (the "Agreement"). The undersigned acknowledges that he or she:

     1.   has received, reviewed and understands the terms of the Agreement
     (including its attachments);

     2.   consents to the Agreement, and agrees to be bound by its terms to the
     extent that he or she now has or may obtain any interest in the Option or
     Shares covered by the Agreement; and

     3.   understands that the Company is relying upon this consent in entering
     into the Agreement and in not taking further steps to protect its
     interests.

Date: __________, 199__


                              _______________________________________
                              Print Name:

                              _______________________________________



[SAMPLE FORM OF NOTICE TO OPTIONEE]


MEMORANDUM

Date:__________

To: _________________________

From:  A.J. Ryden
       Chairman
       DynEco International, Inc.

Subject: 1993 CORPORATE STOCK OPTION PLAN

     I am pleased to inform you that the Board of Directors recently awarded 
you a non-statutory stock option to purchase __________ shares of the 
Company's common stock at an exercise price of $_____  per share. This option 
was granted on _____________, 199___ under the 1993 Corporate Stock Option 
Plan and vests as of the grant date.

     Please enter your address on the enclosed Stock Option Agreement, sign 
the original copy of the Agreement and return it to me as soon as 
practicable. Attached to the Agreement is a Spousal Consent which your spouse 
should sign and date. A duplicate copy of the Agreement is included for your 
files. Attached to your copy of the agreement as Exhibit A is a copy of the 
1993 Corporate Stock Option Plan.

     If you desire to exercise a vested portion of your option, I will assist 
you in arranging for the execution of the necessary papers. If you have any 
questions regarding your option, please contact me. CONGRATULATIONS!

Enclosure






                          NOTICE OF EXERCISE OF OPTION




To:   DynEco International, Inc.
      Office of the Corporate Secretary

From: _________________________________
      ( Optionee )

      Address:
      _________________________________

      _________________________________

      _________________________________

      Social Security Number: ______________________


     1.   EXERCISE OF OPTION. I am the holder of an option or options granted 
under the 1993 Corporate Stock Option Plan (the "Plan") and that certain 
Stock Option Agreement dated _____________, 199__. I hereby irrevocably elect 
to exercise the purchase rights represented by such option, and to purchase 
thereunder ________ (____) shares of Common Stock of DynEco International, 
Inc. (the "Company") at $____ per share, for an aggregate exercise price of 
$______, to be paid by me in one or more of the following forms (indicate the 
amount for each form that applies):

     [ ]  $__________ by delivering herewith cash or a check made payable
          to DynEco International, Inc.; or

     [ ]  $__________ by the delivering herewith of certificate(s) numbered
          __________ representing shares of Common Stock of the Company
          with a fair market value on the date hereof equal to $____ per
          share (and, if such certificate represents shares in excess of
          the number required to achieve the amount indicated in the left
          margin, requesting that the Company or its transfer agent deliver
          to me a certificate or certificates for the balance of the shares
          represented thereby), together with a stock power executed in
          blank; or

     [ ]  $__________ by delivering to _________________________________
          ("Broker") an irrevocable direction (two copies of which I have
          completed, executed and attached hereto), to sell that number of
          shares of the stock to be acquired hereby and to deliver the proceeds
          thereof to the Company in the amount indicated in the left margin; or

     [ ]  $__________ by the delivering herewith of the Stock Option Agreement
          dated , 199___, 

                                        1



          representing Options to purchase shares of Common Stock of the 
          Company with the shares having a fair market value on the date hereof
          equal to $_________ per share (and, if such Stock Option Agreement 
          represents shares in excess of the number required to achieve the 
          amount indicated in the left margin, requesting that the Company or 
          its transfer agent deliver to me a Stock Option Agreement for the 
          balance of the Options represented thereby).

I request that certificate(s) for such shares be registered and issued in the 
name set forth above. The certificate(s) issued upon exercise of the 
aforesaid option should be mailed to my address indicated above via first 
class mail. I acknowledge that the Option Exercise Date is the date upon 
which this notice and the required payment are received in the Office of the 
Secretary of the Company.

     2.   OTHER ACKNOWLEDGEMENTS.

     (a)  I acknowledge receipt of copies of the Company's most recent 10K
     and/or Annual Report to Shareholders, and 10Q.

     (b)  I am aware that the Securities Act of 1933, as amended, and the
     regulations and requirements of the Securities and Exchange Commission
     thereunder, may impose limitations on the resale of Company stock acquired
     pursuant to this option exercise. I hereby certify that any resale of such
     stock will be made in compliance with the Act and those regulations and
     requirements.

     (c)  I hereby appoint ______________________ as my agent to accept 
     delivery of the shares of Company stock being purchased on my behalf
     pursuant to this option exercise, and request _______________________
     to forward the certificates representing those shares to me at the address
     shown above.

Dated: __________, 199___

                              ______________________________________
                              Optionee

                                  2