VERITAS DGC INC
8-K, 1996-09-16
OIL & GAS FIELD EXPLORATION SERVICES
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<PAGE>   1





                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                               ------------------


                                    FORM 8-K



                                CURRENT  REPORT


                     Pursuant to Section 13 or 15(d) of the

                        Securities Exchange Act of 1934



       Date of Report: (Date of earliest event reported): August 30, 1996


                                VERITAS DGC INC.
             (Exact name of registrant as specified in its charter)



<TABLE>
      <S>                                  <C>                              <C>
              Delaware                              1-7427                             76-0343152            
      (State of Incorporation)             (Commission File Number)         (IRS Employer Identification No.)
</TABLE>



                                3701 Kirby Drive
                              Houston, Texas 77098
                    (Address of Principal Executive Offices)


                                  713/526-5611
              (Registrant's telephone number, including area code)


                                  Digicon Inc.
         (Former name or former address, if changed since last report)
<PAGE>   2
ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS

        On August 30, 1996, Digicon Inc. (the "Company") and Veritas Energy
Services Inc. ("Veritas") reported the closing of the previously announced
merger of the two companies.  In connection with the merger, the Company 
changed its name to "Veritas DGC Inc." and its common stock began trading on 
the New York Stock Exchange and The Toronto Stock Exchange under the ticker 
symbol "VTS."

        All Veritas common shares have been converted to Veritas exchangeable
shares which will trade on The Toronto Stock Exchange under the symbol "VES" and
which are exchangeable for the common stock of Veritas DGC Inc.  The voting
equity of Veritas is now held by Veritas DGC Inc.  The August 30, 1996 joint
news release of the Company and Veritas concerning the closing of this
transaction and a copy of the agreements entered in connection therewith have
been filed with the Securities and Exchange Commission as exhibits to this Form
8-K.  This summary description of the transaction does not purport to be
complete and is qualified by reference to such press release and exhibits.

ITEM  7.  FINANCIAL STATEMENTS AND EXHIBITS

 (a) Financial statements of businesses acquired. The required financial
     statements have previously been filed in the Company's definitive proxy
     materials dated July 19, 1996.

 (b) Pro forma financial information. The required pro forma financial
     information has previously been filed in the Company's definitive proxy
     materials dated July 19, 1996.

 (c) Exhibits.

<TABLE>                                                             
<CAPTION>                                                  
       Exhibit No.                                     Exhibit                            
       -----------                                     -------                            
           <S>             <C>                                                            
           3.1             Restated Certificate of Incorporation of Digicon Inc. dated    
                           August 30, 1996.  (Filed herewith.)                            
                                                                                          
           9.1             Voting and Exchange Trust Agreement dated as of August 30, 1996
                           among Digicon Inc., Veritas Energy Services Inc. and The R-M   
                           Trust Company.  (Filed herewith.)                              

           10.1            Support Agreement dated as of August 30, 1996 between Digicon  
                           Inc. and Veritas Energy Services Inc.  (Filed herewith.)       
                                                                                          
           20.1            Joint Press Release of Digicon Inc. and Veritas Energy         
                           Services, Inc. dated August 30, 1996. (Filed herewith.)        
</TABLE>                                             





<PAGE>   3
                                   SIGNATURES

 Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

Date: September 16, 1996
                                        DIGICON INC.


                                        By:   /s/ Richard W. McNairy
                                            -------------------------------
                                                  Richard W. McNairy,
                                             Vice President and Principal
                                                   Financial Officer





                                      2



<PAGE>   4

                                EXHIBIT INDEX

<TABLE>                                                      
<CAPTION>                                                 
       Exhibit No.                                     Exhibit                            
       -----------                                     -------                            
           <S>             <C>                                                            
           3.1             Restated Certificate of Incorporation of Digicon Inc. dated    
                           August 30, 1996.  (Filed herewith.)                            
                                                                                          
           9.1             Voting and Exchange Trust Agreement dated as of August 30, 1996
                           among Digicon Inc., Veritas Energy Services Inc. and The R-M   
                           Trust Company.  (Filed herewith.)                              

           10.1            Support Agreement dated as of August 30, 1996 between Digicon  
                           Inc. and Veritas Energy Services Inc.  (Filed herewith.)       
                                                                                          
           20.1            Joint Press Release of Digicon Inc. and Veritas Energy         
                           Services, Inc. dated August 30, 1996. (Filed herewith.)        
</TABLE>                                            



<PAGE>   1
                                                                  EXHIBIT 3.1

                                    RESTATED
                          CERTIFICATE OF INCORPORATION
                               (WITH AMENDMENTS)
                                       OF
                                  DIGICON INC.


     Digicon Inc., a corporation organized and existing under the laws of
Delaware (the "Corporation"), hereby certifies as follows:

     FIRST:  The present name of the Corporation is Digicon Inc.  The original
name of the Corporation was "New Digicon Inc.", and its original date of
incorporation was June 21, 1991.

     SECOND:  This Restated Certificate of Incorporation (with Amendments) was
duly adopted in accordance with the provisions of Section 245 of the General
Corporation Law of the State of Delaware.

     THIRD:  Pursuant to Sections 242 and 245 of the General Corporation Law of
the State of Delaware, this Restated Certificate of Incorporation (with
Amendments) restates and integrates and further amends the provisions of the
Certificate of Incorporation of the Corporation.

     FOURTH:  The text of the Restated Certificate of Incorporation (with
Amendments) as heretofore amended and supplemented is hereby restated and
further amended to read in its entirety as follows:

                                   ARTICLE I

     The name of the Corporation is Veritas DGC Inc.

                                   ARTICLE II

     The registered office of the Corporation in the State of Delaware is
located at 1209 Orange Street in the City of Wilmington, County of New Castle.
The name and address of its registered agent at such address is The Corporation
Trust Company.

                                  ARTICLE III

     The nature of the business and the objects and purposes to be transacted,
promoted or carried on by the Corporation are to engage in any lawful act or
activity for which corporations may be organized under the General Corporation
Law of Delaware.

                                   ARTICLE IV

     Section 1. The aggregate number of shares which the Corporation will have
authority to issue is 41,000,000, of which 40,000,000 will be common shares,
par value $.01 per share, ("Ordinary 

                                      1

<PAGE>   2

Shares") and 1,000,000 will be shares of preferred stock, par value $.01
per share ("Preferred Stock").

     Section 2. Preferred Stock.  Shares of Preferred Stock may be issued from
time to time in one or more series, each of which is to have a distinctive
designation specified in the resolution or resolutions of the Board of
Directors providing for the issuance of such Preferred Stock from time to time.
Each series of Preferred Stock:

     (a) may have such number of shares;

     (b) may have such voting powers, full or limited;

     (c) may be subject to redemption upon such terms and conditions;

     (d) may be entitled to receive dividends (which may be cumulative or
noncumulative) payable in cash, property, rights or securities at such rate or
rates, on such conditions, from such date or dates, and at such times, and
payable in preference to, or in such relation to, the dividends payable on any
other class or series of stock;

     (e) may have such rights and preferences upon the dissolution or
liquidation (whether voluntary or involuntary) of the Corporation;

     (f) may be made convertible into or exchangeable for other securities, or
cash, or other property or rights at such price or prices or at such rates of
exchange, and with such adjustments;

     (g) may be entitled to the benefit of a sinking fund to be applied to the
redemption of shares of such series upon such terms and in such amount or
amounts;

     (h) may be subject to such restrictions as to issuance or as to the
powers, preferences or rights of any such other series; and

     (i) may have such other preferences, privileges and relative rights;

as in such instance is stated in the resolution or resolutions of the Board of
Directors providing for the issuance of such Preferred Stock.  Except where
otherwise set forth in such resolution or resolutions, the number of shares
comprising such series may be increased or decreased (but not below the number
of shares then outstanding from time to time) by like action of the Board of
Directors.  Shares of any series of Preferred Stock, which have been redeemed
(whether through the operation of a sinking fund or otherwise) by the
Corporation, or which, if convertible or exchangeable, have been converted into
or exchanged for shares of stock of any other class, will have the status of
authorized but unissued shares of Preferred Stock and may be reissued as a part
of the series of which they were originally a part or may be reclassified and
reissued as part of a new series of Preferred Stock created by resolution or
resolutions of the Board of Directors or as part of any other series of
Preferred Stock, all subject to the conditions or restrictions on
issuance set forth in the 

                                      2

<PAGE>   3

resolution or resolutions adopted by the Board of Directors providing for
the issuance of any series of Preferred Stock and to any filing required by
law.

     Section 3. Ordinary Shares.  Ordinary Shares may be issued from time to
time in one or more series.  The designations, powers, preferences and
relative, participating, optional and other special rights, and the
qualifications, limitations and restrictions thereon, of the Ordinary Shares of
each series shall be such as are stated and expressed herein, and to the extent
not stated and expressed herein, shall be such as may be fixed by the Board of
Directors and stated and expressed in the resolution or resolutions providing
for the issuance of such Ordinary Shares from time to time; provided, however,
that:

     (a) except as otherwise provided by law or by the resolution or
resolutions of the Board of Directors providing for the issuance of any series
of Preferred Stock, Ordinary Shares will have the exclusive right to vote for
the election of directors and for all other purposes;

     (b) all outstanding Ordinary Shares shall vote together as a single class
on all matters presented to stockholders, with each outstanding share of each
series of Ordinary Shares to have such number of votes as specified herein or
as set forth in the resolution or resolutions of the Board of Directors
authorizing such series; and

     (c) no series of Ordinary Shares (except for such series as are herein
designated and except for any increase in the number of shares constituting
such a series) shall be designated by resolution of the Board of Directors
except upon the unanimous approval of all outstanding Ordinary Shares.

     Section 4. Special Voting Stock Designated.  A series of Ordinary Shares,
consisting of one such share, is hereby designated as "Special Voting Stock."
Each outstanding share of Special Voting Stock shall be entitled at any
relevant date to the number of votes determined in accordance with the "Plan of
Arrangement" (as that term is defined in that certain "Combination Agreement"
dated as of May 10, 1996, by and between Digicon Inc. and Veritas Energy
Services Inc. ("Veritas")) on all matters presented to the stockholders.  No
dividend or distribution of assets shall be paid to the holders of Special
Voting Stock.  The Special Voting Stock is not convertible into any other class
or series of the capital stock of the Corporation or into cash, property or
other rights, and may not be redeemed.  Any shares of Special Voting Stock
purchased or otherwise acquired by the Corporation shall be deemed retired and
shall be canceled and may not thereafter be reissued or otherwise disposed of
by the Corporation.  So long as any "Exchangeable Shares" (as that term is
defined in the Combination Agreement) shall be outstanding, the number of
shares comprising the Special Voting Stock shall not be increased or decreased
and no other term of the Special Voting Stock shall be amended, except upon the
unanimous approval of all outstanding Ordinary Shares.

     Section 5. Common Stock Designated.  All Ordinary Shares not otherwise
designated as to series herein or in a resolution of the Board of Directors
creating another series of Ordinary Shares, is designated as "Common Stock."
Such resulting number of shares may be decreased by resolution of the
Board of Directors and without stockholder action; provided, however, that no
decrease shall reduce the number of shares of Common Stock to a number less
than the number of 

                                      3

<PAGE>   4

shares then outstanding plus the number of shares reserved for issuance upon
the exercise of outstanding options, rights and/or warrants, the conversion
of any outstanding convertible securities and/or the exchange of any
outstanding exchangeable securities which are directly or indirectly
exercisable for, convertible into or exchangeable for Common Stock.  Each
outstanding share of Common Stock shall be entitled to one vote on all matters
presented to the stockholders.  Subject to the rights and preferences of any
Preferred Stock which may be designated and issued, the holders of Common Stock
are entitled (i) to receive such dividends as may be declared thereon from time
to time by the Board of Directors in its discretion, out of any assets of the
Corporation at the time legally available for the payment of dividends and (ii)
in the event of liquidation, dissolution or winding up of the affairs of the
Corporation, whether voluntary or involuntary, or in the event of its
insolvency, to receive any net assets of the Corporation remaining after the
holders of any other classes or series of the Corporation's capital stock which
by their respective terms are senior to the Common Stock as to dividends and
distributions of assets have been paid in full the amounts to which they
respectively are entitled or a sum sufficient for such payment in full has been
set aside.

     Section 6. No holder of securities of the Corporation shall have any
preemptive right to acquire any shares or securities of any kind, whether now
or hereafter authorized, which may at any time be issued, sold or offered for
sale by the Corporation.

                                   ARTICLE V

     The existence of the Corporation is to be perpetual.

                                   ARTICLE VI

     In furtherance and not in limitation of the powers conferred by statute,
the Board of Directors is expressly authorized:

     (a) to authorize and cause to be executed mortgages and liens upon the
real and personal property of the Corporation;

     (b) to set apart out of any of the funds of the Corporation available for
dividends a reserve or reserves for any proper purpose and to abolish any such
reserve in the manner in which it was created; and

     (c) when and as authorized by the affirmative vote of the holders of a
majority of the stock issued and outstanding having voting power given at a
stockholders' meeting duly called upon such notice as is required by statute to
sell, lease or exchange all or substantially all of the property and assets of
the Corporation, including its goodwill and its corporate franchises, upon such
terms and conditions and for such consideration, which may consist in whole or
in part of money or property including securities of any other corporation or
corporations, as the Board of Directors shall deem expedient and for the best
interests of the Corporation.


                                      4


<PAGE>   5


                                  ARTICLE VII

     Meetings of stockholders may be held within or without the State of
Delaware, at such date and time as is requested by the person or persons
calling the meeting, within the limits fixed by law.  Special meetings of
stockholders of the Corporation for any purpose or purposes may only be called
by a majority of the entire Board of Directors, by the Chairman of the Board or
the President of the Corporation.  Special meetings may not be called by any
other person or persons.  The books of the Corporation may be kept (subject to
any provision contained in the statutes) outside the State of Delaware at such
place or places as may be designated from time to time by the Board of
Directors or in the Bylaws of the Corporation.  Elections of directors need not
be by written ballot unless the Bylaws of the Corporation shall so provide.

                                  ARTICLE VIII

     The Corporation reserves the right to amend, alter, change or repeal any
provision contained in this Restated Certificate of Incorporation (with
Amendments), in the manner now or hereafter prescribed by statute, and all
rights conferred upon stockholders herein are granted subject to this
reservation.

                                   ARTICLE IX

     The number of directors of the Corporation shall be not less than three
nor more than ten, the exact number to be fixed by the Board of Directors as
provided in the Bylaws.  Any vacancy created by an increase in the number of
directors in accordance with the Bylaws may only be filled by the Board of
Directors.  A director of the Corporation may only be removed by a majority
vote of the stockholders entitled to elect such director.

                                   ARTICLE X

     No director of the Corporation shall be personally liable to the
Corporation or its stockholders for monetary damages for breach of fiduciary
duty as a director; provided, however, that the foregoing clause shall not
apply to any liability of a director (i) for any breach of the director's duty
of loyalty to the Corporation or its stockholders, (ii) for acts or omissions
not in good faith or which involve intentional misconduct or a knowing
violation of law, (iii) under Section 174 of the Delaware General Corporation
Law, or (iv) for any transaction from which the director derived an improper
personal benefit.

     If the Delaware General Corporation Law hereafter is amended to authorize
the further elimination or limitation of the liability of directors, then the
liability of a director of the Corporation, in addition to the limitation on
personal liability provided herein, shall be limited to the fullest extent
permitted by the amended Delaware General Corporation Law.  Any repeal or
modification of this paragraph by the stockholders of the Corporation shall be
prospective only, and shall not adversely affect any limitation on the personal
liability of a director of the Corporation existing at the time of such repeal
or modification.



                                      5

<PAGE>   6

     The Corporation shall indemnify its officers and directors to the fullest
extent permitted by the Delaware General Corporation Law as the same may be in
effect from time to time.

                                   ARTICLE XI

     The Corporation expressly elects not to be governed by Section 203 of the
Delaware General Corporation Law.

                                  ARTICLE XII

     Notwithstanding any other provisions herein to the contrary, so long as
any Exchangeable Shares are outstanding, the Corporation shall (i) fully comply
with all terms of the Exchangeable Shares and with all contractual obligations
of the Corporation associated with such Exchangeable Shares and (ii) not amend,
alter, change or repeal this Article XII except upon the unanimous approval of
all outstanding Ordinary Shares.




     IN WITNESS WHEREOF, the undersigned has executed this RESTATED CERTIFICATE
OF INCORPORATION (WITH AMENDMENTS) on August 28, 1996, which shall become
effective at 4:00 p.m. eastern standard time on August 30, 1996 in accordance
with Section 103(d) of the Delaware General Corporation Law.



                                         By: /s/ RICHARD W. MCNAIRY
                                            -----------------------------------
                                             Richard W. McNairy, Vice President
                                             and Chief Financial Officer


Attest:



/s/ ALLAN C. POGACH
- -----------------------------
Allan C. Pogach, Secretary



                                      6

<PAGE>   1
                                                                     EXHIBIT 9.1


                      VOTING AND EXCHANGE TRUST AGREEMENT

       MEMORANDUM OF AGREEMENT MADE AS OF THE 30th DAY OF AUGUST, 1996.


B E T W E E N:

                      DIGICON INC.,
                      a corporation existing under the
                      laws of the State of Delaware
                      (hereinafter referred to as
                      "Digicon")

                                                             OF THE FIRST PART,

                                    - and -

                      VERITAS ENERGY SERVICES INC.,
                           a corporation existing under
                      the laws of the Province of
                      Alberta
                      (hereinafter referred to as
                      "Veritas")

                                                             OF THE SECOND PART,

                                    - and -

                      THE R-M TRUST COMPANY,
                      a trust company existing under the laws of Canada
                      (hereinafter referred to as the
                      "Trustee")

                                                             OF THE THIRD PART.


     WHEREAS pursuant to a combination agreement dated as of May 10, 1996, by
and between Digicon and Veritas (such agreement as it may be amended or
restated is hereinafter referred to as the "Combination Agreement") the parties
agreed that on the Effective Date (as defined in the Combination Agreement),
Digicon and Veritas would execute and deliver a Voting and Exchange Trust
Agreement containing the terms and conditions set forth in Exhibit E to the
Combination Agreement together with such other terms and conditions as may be
agreed to by the parties to the Combination Agreement acting reasonably;

     AND WHEREAS pursuant to an arrangement (the "Arrangement") effected by
Articles of Arrangement dated August 30, 1996 filed pursuant to the Business
Corporations Act (Alberta), each issued and outstanding common share of Veritas
(a "Veritas Common Share") was exchanged for 0.8 issued and outstanding
Exchangeable Shares of Veritas (the "Exchangeable Shares"), and thereafter,
Veritas's sole issued and outstanding Class A Preferred Share was exchanged by
the holder thereof for one issued and outstanding Veritas Common Share;



                                     -1-

<PAGE>   2



     AND WHEREAS the above-mentioned Articles of Arrangement set forth the
rights, privileges, restrictions and conditions (collectively, the
"Exchangeable Share Provisions") attaching to the Exchangeable Shares;

     AND WHEREAS Digicon is to provide voting rights in Digicon to each holder
(other than Digicon and its Subsidiaries) from time to time of Exchangeable
Shares, such voting rights per Exchangeable Share to be equivalent to the
voting rights per share of Digicon Common Stock (the "Digicon Common Stock");

     AND WHEREAS Digicon is to grant to and in favour of the holders (other
than Digicon and its Subsidiaries) from time to time of Exchangeable Shares the
right, in the circumstances set forth herein, to require Digicon to purchase
from each such holder all or any part of the Exchangeable Shares held by the
holder;

     AND WHEREAS the parties desire to make appropriate provision and to
establish a procedure whereby voting rights in Digicon shall be exercisable by
holders (other than Digicon and its Subsidiaries) from time to time of
Exchangeable Shares by and through the Trustee, which will hold legal title to
one share of Digicon Special Voting Stock (the "Digicon Special Voting Stock")
to which voting rights attach for the benefit of such holders and whereby the
rights to require Digicon to purchase Exchangeable Shares from the holders
thereof (other than Digicon and its Subsidiaries) shall be exercisable by such
holders from time to time of Exchangeable Shares by and through the Trustee,
which will hold legal title to such rights for the benefit of such holders;

     AND WHEREAS these recitals and any statements of fact in this agreement
are made by Digicon and Veritas and not by the Trustee;

     NOW THEREFORE in consideration of the respective covenants and agreements
provided in this agreement and for other good and valuable consideration (the
receipt and sufficiency of which are hereby acknowledged), the parties agree as
follows:

1.   DEFINITIONS AND INTERPRETATION

                (a)  DEFINITIONS.  In this agreement, the
                     following terms shall have the following meanings:

"Aggregate Equivalent Vote Amount" means, with respect to any matter,
proposition or question on which holders of Digicon Common Stock are entitled
to vote, consent or otherwise act, the product of (i) the number of shares of
Exchangeable Shares issued and outstanding and held by Holders multiplied by
(ii) the number of votes to which a holder of one share of Digicon Common Stock
is entitled with respect to such matter, proposition or question.

"Exchangeable Share Consideration" has the meaning attributed thereto in the
Exchangeable Share Provisions.

"Exchangeable Share Price" has the meaning attributed thereto in the
Exchangeable Share Provisions.

                                     -2-

<PAGE>   3



"Arrangement" has the meaning attributed thereto in the recitals hereto.

"Automatic Exchange Rights" means the benefit of the obligation of Digicon to
effect the automatic exchange of shares of Digicon Common Stock for
Exchangeable Shares pursuant to Section 5(l) hereof.

"Board of Directors" means the Board of Directors of Veritas.

"Business Day" has the meaning attributed thereto in the Exchangeable Share
Provisions;

"Digicon Common Stock" has the meaning attributed thereto in the recitals
hereto.

"Digicon Consent" has the meaning attributed thereto in Section 4(b) hereof.

"Digicon Meeting" has the meaning attributed thereto in Section 4(b) hereof.

"Digicon Special Voting Stock" has the meaning attributed thereto in the
recitals hereto.

"Digicon Successor" has the meaning attributed thereto in subsection 11(a)(i)
hereof.

"Equivalent Vote Amount" means, with respect any matter, proposition or
question on which holders of Digicon Common Stock are entitled to vote, consent
or otherwise act, the number of votes to which a holder of one share of Digicon
Common Stock is entitled with respect to such matter, proposition or question.

"Exchange Right" has the meaning attributed thereto in Article 5 hereof.

"Exchangeable Share Provisions" has the meaning attributed thereto in the
recitals hereto.

"Exchangeable Shares" has the meaning attributed thereto in the recitals
hereto.

"Holder Votes" has the meaning attributed thereto in Section 4(b) hereof.

"Holders" means the registered holders from time to time of Exchangeable
Shares, other than Digicon and its Subsidiaries.

"Insolvency Event" means the institution by Veritas of any proceeding to  be
adjudicated a bankrupt or insolvent or to be dissolved or wound-up, or  the
consent of Veritas to the institution of bankruptcy, insolvency,  dissolution
or winding-up proceedings against it, or the filing of a  petition, answer or
consent seeking dissolution or winding-up under any  bankruptcy, insolvency or
analogous laws, including without limitation the Companies Creditors'
Arrangement Act (Canada) and the Bankruptcy and Insolvency Act (Canada), and
the failure by Veritas to contest in good  faith any such proceedings commenced
in respect of Veritas within 15  days of becoming aware thereof, or the consent
by Veritas to the filing  of any such petition or to the appointment of a
receiver, or the making by  Veritas of a general assignment for the benefit of
creditors, or the  admission in writing by Veritas of its inability to pay its
debts  generally as they become due, or Veritas not being 


                                     -3-

<PAGE>   4


permitted, pursuant to liquidity or solvency requirements of applicable law,
to redeem any Retracted Shares  pursuant to Section 6.6 of the Exchangeable
Share Provisions.

"Liquidation Call Right" has the meaning attributed thereto in the Exchangeable
Share Provisions.

"Liquidation Event" has the meaning attributed thereto in subsection 5(l)(ii)
hereof.

"Liquidation Event Effective Date" has the meaning attributed thereto in
subsection 5(l)(iii) hereof.

"List" has the meaning attributed thereto in Section 4(f) hereof.

"Officer's Certificate" means, with respect to Digicon or Veritas, as the case
may be, a certificate signed by any one of the Chairman of the Board, the
Vice-Chairman of the Board, the President, any Vice-President or any other
senior officer of Digicon or Veritas, as the case may be.

"Person" includes an individual, partnership, corporation, company,
unincorporated syndicate or organization, trust, trustee, executor,
administrator and other legal representative.

"Plan of Arrangement" has the meaning attributed thereto in the Exchangeable
Share Provisions.

"Redemption Call Right" has the meaning attributed thereto in the Exchangeable
Share Provisions.

"Retracted Shares" has the meaning attributed thereto in Section 5(g) hereof.

"Retraction Call Right" has the meaning attributed thereto in the Exchangeable
Share Provisions.

"Subsidiary" has the meaning attributed thereto in the Exchangeable Share
Provisions.

"Support Agreement" means that certain support agreement made as of even date
hereof between Veritas and Digicon.

"Trust" means the trust created by this agreement.

"Trust Estate" means the Voting Share, any other securities, the Exchange
Right, the Automatic Exchange Rights and any money or other property which may
be held by the Trustee from time to time pursuant to this agreement.

"Trustee" means The R-M Trust Company and, subject to the provisions of Article
10 hereof, includes any successor trustee or permitted assigns.

"Veritas Common Shares" has the meaning attributed thereto in the recitals
hereto.

"Voting Rights" means the voting rights attached to the Voting Share.

"Voting Share" means the one share of Digicon Special Voting Stock, U.S. $0.01
par value, issued by Digicon to and deposited with the Trustee, which entitles
the holder of record to a number of 


                                     -4-

<PAGE>   5

votes at meetings of holders of Digicon Common Stock equal to the Aggregate
Equivalent Vote Amount.

                (b)  INTERPRETATION NOT AFFECTED BY HEADINGS,
                     ETC.  The division of this agreement into articles,
                     sections and paragraphs and the insertion of headings are
                     for convenience of reference only and shall not affect the
                     construction or interpretation of this agreement.

                (c)  NUMBER, GENDER, ETC.  Words importing the
                     singular number only shall include the plural and vice
                     versa.  Words importing the use of any gender shall
                     include all genders.

                (d)  DATE FOR ANY ACTION.  If any date on
                     which any action is required to be taken under this
                     agreement is not a Business Day, such action shall be
                     required to be taken on the next succeeding Business Day.

2.              PURPOSE OF AGREEMENT

                The purpose of this agreement is to create the Trust for the
                benefit of the Holders, as herein provided.  The Trustee will
                hold the Voting Share in order to enable the Trustee to
                exercise the Voting Rights and will hold the Exchange Right and
                the Automatic Exchange Rights in order to enable the Trustee to
                exercise such rights, in each case as trustee for and on behalf
                of the Holders as provided in this agreement.

3.              VOTING SHARE

                (a)  ISSUANCE AND OWNERSHIP OF THE VOTING
                     SHARE.  Digicon hereby issues to and deposits with the
                     Trustee the Voting Share to be hereafter held of record by
                     the Trustee as trustee for and on behalf of, and for the
                     use and benefit of, the Holders and in accordance with the
                     provisions of this agreement.  Digicon hereby acknowledges
                     receipt from the Trustee as trustee for and on behalf of
                     the Holders of good and valuable consideration (and the
                     adequacy thereof) for the issuance of the Voting Share by
                     Digicon to the Trustee.  During the term of the Trust and
                     subject to the terms and conditions of this agreement, the
                     Trustee shall possess and be vested with full legal
                     ownership of the Voting Share and shall be entitled to
                     exercise all of the rights and powers of an owner with
                     respect to the Voting Share, provided that the Trustee
                     shall:

                        (i) hold the Voting Share and the legal title
                            thereto as trustee solely  for the use and benefit
                            of the Holders in accordance with the provisions of
                            this agreement; and

                       (ii) except as specifically authorized by this
                            agreement, have no  power or authority to sell,
                            transfer, vote or otherwise deal in or with the
                            Voting Share and the Voting Share shall not be used
                            or disposed of by the  Trustee for any purpose
                            other than the purposes for which this Trust is
                            created pursuant to this agreement.


                                     -5-

<PAGE>   6

                (b)  LEGENDED SHARE CERTIFICATES.  Veritas
                     will cause each certificate representing Exchangeable
                     Shares to bear an appropriate legend notifying the Holders
                     of their right to instruct the Trustee with respect to the
                     exercise of the Voting Rights with respect to the
                     Exchangeable Shares held by a Holder.

                (c)  SAFE KEEPING OF CERTIFICATE.  The
                     certificate representing the Voting Share shall at all
                     times be held in safe keeping by the Trustee or its agent.

4.              EXERCISE OF VOTING RIGHTS

                (a)  VOTING RIGHTS.  The Trustee, as the
                     holder of record of the Voting Share, shall be entitled to
                     all of the Voting Rights, including the right to consent
                     to or to vote in person or by proxy the Voting Share, on
                     any matter, question or proposition whatsoever that may
                     properly come before the stockholders of Digicon at a
                     Digicon Meeting or in connection with a Digicon Consent
                     (in each case, as hereinafter defined).  The Voting Rights
                     shall be and remain vested in and exercised by the
                     Trustee.  Subject to Section 7(o) hereof, the Trustee
                     shall exercise the Voting Rights only on the basis of
                     instructions received pursuant to this Article 4 from
                     Holders entitled to instruct the Trustee as to the voting
                     thereof at the time at which a Digicon Consent is sought
                     or a Digicon Meeting is held.  To the extent that no
                     instructions are received from a Holder with respect to
                     the Voting Rights to which such Holder is entitled, the
                     Trustee shall not exercise or permit the exercise of such
                     Holder's Voting Rights.

                (b)  NUMBER OF VOTES.  With respect to all
                     meetings of stockholders of Digicon at which holders of
                     shares of Digicon Common Stock are entitled to vote (a
                     "Digicon Meeting") and with respect to all written
                     consents sought by Digicon from its stockholders including
                     the holders of shares of Digicon Common Stock (a "Digicon
                     Consent"), each Holder shall be entitled to instruct the
                     Trustee to cast and exercise, in the manner instructed, a
                     number of votes equal to the Equivalent Vote Amount for
                     each Exchangeable Share owned of record by such Holder on
                     the record date established by Digicon or by applicable
                     law for such Digicon Meeting or Digicon Consent, as the
                     case may be (the "Holder Votes") in respect of each
                     matter, question or proposition to be voted on at such
                     Digicon Meeting or to be consented to in connection with
                     such Digicon Consent.

                (c)  MAILINGS TO SHAREHOLDERS.  With respect
                     to each Digicon Meeting and Digicon Consent, the Trustee
                     will mail or cause to be mailed (or otherwise communicate
                     in the same manner as Digicon utilizes in communications
                     to holders of Digicon Common Stock, subject to the
                     Trustee's ability to provide this method of communication
                     and upon being advised in writing of such method) to each
                     of the Holders named in the List on the same day as the
                     initial mailing or notice (or other communication) with
                     respect thereto is given by Digicon to its stockholders:

                        (i) a copy of such notice, together with any proxy
                            or information  statement and related materials to
                            be provided to stockholders of the  Digicon;


                                     -6-

<PAGE>   7


                       (ii) a statement that such Holder is entitled to
                            instruct the Trustee as  to the exercise of the
                            Holder Votes with respect to such Digicon Meeting
                            or  Digicon Consent, as the case may be, or,
                            pursuant to Section 4(g) hereof, to  attend such
                            Digicon Meeting and to exercise personally the
                            Holder Votes  thereat;

                      (iii) a statement as to the manner in which such
                            instructions may be given  to the Trustee,
                            including an express indication that instructions
                            may be  given to the Trustee to give:

                            (A)  a proxy to such Holder or his designee to 
                                 exercise personally the  Holder Votes; or

                            (B)  a proxy to a designated agent or other 
                                 representative of the  management of Digicon 
                                 to exercise such Holder Votes;

                       (iv) a statement that if no such instructions are
                            received from the  Holder, the Holder Votes to
                            which such Holder is entitled will not be
                            exercised;

                        (v) a form of direction whereby the Holder may so
                            direct and instruct  the Trustee as contemplated
                            herein; and

                       (vi) a statement of (A) the time and date by which
                            such instructions must  be received by the Trustee
                            in order to be binding upon it, which in the case
                            of a Digicon Meeting shall not be earlier than the
                            close of business on the Business Day prior to such
                            meeting, and (B) the method for revoking  or
                            amending such instructions.

                The materials referred to above are to be provided by Digicon
                to the Trustee, but shall be subject to review and comment by
                the Trustee.

                For the purpose of determining Holder Votes to which a Holder
                is entitled in respect of any such Digicon Meeting or Digicon
                Consent, the number of Exchangeable Shares owned of record by
                the Holder shall be determined at the close of business on the
                record date established by Digicon or by applicable law for
                purposes of determining stockholders entitled to vote at such
                Digicon Meeting or to give written consent in connection with
                such Digicon Consent.  Digicon will notify the Trustee in
                writing of any decision of the board of directors of Digicon
                with respect to the calling of any such Digicon Meeting or the
                seeking of any such Digicon Consent and shall provide all
                necessary information and materials to the Trustee in each case
                promptly and in any event in sufficient time to enable the
                Trustee to perform its obligations contemplated by this Section
                4(c).


                                     -7-

<PAGE>   8

                (d)  COPIES OF STOCKHOLDER INFORMATION. Digicon will deliver 
                     to the Trustee copies of all proxy materials,
                     (including notices of Digicon Meetings but excluding
                     proxies to vote shares of Digicon Common Stock),
                     information statements, reports (including without
                     limitation all interim and annual financial statements)
                     and other written communications that are to be
                     distributed from time to time to holders of Digicon Common
                     Stock in sufficient quantities and in sufficient time so
                     as to enable the Trustee to send those materials to each
                     Holder at the same time as such materials are first sent
                     to holders of Digicon Common Stock.  The Trustee will mail
                     or otherwise send to each Holder, at the expense of
                     Digicon, copies of all such materials (and all materials
                     specifically directed to the Holders or to the Trustee for
                     the benefit of the Holders by Digicon) received by the
                     Trustee from Digicon at the same time as such materials
                     are first sent to holders of Digicon Common Stock. The
                     Trustee will make copies of all such materials available
                     for inspection by any Holder at the Trustee's principal
                     office in the cities of Calgary and Toronto.

                (e)  OTHER MATERIALS.  Immediately after receipt by Digicon or 
                     any stockholder of Digicon of any material sent or
                     given generally to the holders of Digicon Common Stock by
                     or on behalf of a third party, including without
                     limitation dissident proxy and information circulars (and
                     related information and material) and tender and exchange
                     offer circulars (and related information and material),
                     Digicon shall use its best efforts to obtain and deliver
                     to the Trustee copies thereof in sufficient quantities so
                     as to enable the Trustee to forward such material (unless
                     the same has been provided directly to Holders by such
                     third party) to each Holder as soon as possible
                     thereafter.  As soon as practicable after receipt thereof,
                     the Trustee will mail or otherwise send to each Holder, at
                     the expense of Digicon, copies of all such materials
                     received by the Trustee from Digicon. The Trustee will
                     also make copies of all such materials available for
                     inspection by any Holder at the Trustee's principal office
                     in the cities of Toronto and Vancouver.

                (f)  LIST OF PERSONS ENTITLED TO VOTE. Veritas shall, (i) prior
                     to each annual, general and special Digicon Meeting or
                     the seeking of any Digicon Consent and (ii) forthwith upon
                     each request made at any time by the Trustee in writing,
                     prepare or cause to be prepared a list (a "List") of the
                     names and addresses of the Holders arranged in
                     alphabetical order and showing the number of Exchangeable
                     Shares held of record by each such Holder, in each case at
                     the close of business on the date specified by the Trustee
                     in such request or, in the case of a List prepared in
                     connection with a Digicon Meeting or a Digicon Consent, at
                     the close of business on the record date established by
                     Digicon or pursuant to applicable law for determining the
                     holders of Digicon Common Stock entitled to receive notice
                     of and/or to vote at such Digicon Meeting or to give
                     consent in connection with such Digicon Consent.  Each
                     such List shall be delivered to the Trustee promptly after
                     receipt by Veritas of such request or the record date for
                     such meeting or seeking of consent, as the case may be,
                     and in any event within sufficient time as to enable the
                     Trustee to perform its obligations under this agreement. 
                     Digicon agrees to give Veritas written notice (with a copy
                     to the Trustee) of the calling of any Digicon Meeting or
                     the seeking of any Digicon Consent, together with the
                     record dates therefor, sufficiently prior to the date 


                                     -8-


<PAGE>   9


                     of the calling of such meeting or seeking of such
                     consent so as to enable Veritas to perform its obligations
                     under this Section 4(f).

                (g)  ENTITLEMENT TO DIRECT VOTES.  Any Holder named in a List 
                     prepared in connection with any Digicon Meeting or any
                     Digicon Consent will be entitled (i) to instruct the
                     Trustee in the manner described in Section 4(c) hereof
                     with respect to the exercise of the Holder Votes to which
                     such Holder is entitled or (ii) to attend such meeting and
                     personally to exercise thereat (or to exercise with
                     respect to any written consent), as the proxy of the
                     Trustee, the Holder Votes to which such Holder is
                     entitled.

                (h)  VOTING BY TRUSTEE, AND ATTENDANCE OF TRUSTEE 
                     REPRESENTATIVE, AT MEETING.

                        (i) In connection with each Digicon Meeting and
                            Digicon Consent, the Trustee shall exercise, either
                            in person or by proxy, in accordance with the
                            instructions received from a Holder pursuant to
                            Section 4(c) hereof, the Holder Votes as to which
                            such Holder is entitled to direct the vote (or any
                            lesser number thereof as may be set forth in the
                            instructions); provided, however, that such written
                            instructions are received by the Trustee from the
                            Holder prior to the time and date fixed
                            by it for receipt of such instructions in the
                            notice given by the Trustee to the Holder pursuant
                            to Section 4(c) hereof.

                       (ii) The Trustee shall cause such representatives
                            as are empowered by it to sign and deliver, on
                            behalf of the Trustee, proxies for Voting Rights to
                            attend each Digicon Meeting.  Upon submission by a
                            Holder (or its designee) of identification
                            satisfactory to the Trustee's representatives, and
                            at the Holder's request, such representatives shall
                            sign and deliver to such Holder (or its designee) a
                            proxy to exercise personally the Holder Votes as to
                            which such Holder is otherwise entitled hereunder
                            to direct the vote, if such Holder either (A) has
                            not previously given the Trustee instructions
                            pursuant to Section 4(c) hereof in respect of such
                            meeting, or (B) submits to the Trustee's
                            representatives written revocation of any such
                            previous instructions.  At such meeting, the Holder
                            exercising such Holder Votes shall have the same
                            rights as the Trustee to speak at the meeting in
                            respect of any matter, question or proposition, to
                            vote by way of ballot at the meeting in respect of
                            any matter, question or proposition and to vote at
                            such meeting by way of a show of hands in respect
                            of any matter, question or proposition.

                (i)  DISTRIBUTION OF WRITTEN MATERIALS.  Any written materials
                     to be distributed by the Trustee to the Holders
                     pursuant to this agreement shall be delivered or sent by
                     mail (or otherwise communicated in the same manner as
                     Digicon utilizes in communications to holders of Digicon
                     Common Stock) to each Holder at its address as shown on
                     the books of Veritas.  Veritas shall provide or cause to
                     be provided to the Trustee for this purpose, on a timely
                     basis and without charge or other expense:

                                     -9-

<PAGE>   10



                            (A)  current lists of the Holders; and

                            (B)  upon the request of the Trustee, mailing 
                                 labels to enable the Trustee to carry out its
                                 duties under this agreement.

                     The materials referred to above are to be provided by
                     Digicon to the Trustee, but shall be subject to review
                     and comment by the Trustee.

                (j)  TERMINATION OF VOTING RIGHTS.  Except as otherwise 
                     provided herein or in the Exchangeable Share
                     provisions, all of the rights of a Holder with respect to
                     the Holder Votes exercisable in respect of the
                     Exchangeable Shares held by such Holder, including the
                     right to instruct the Trustee as to the voting of or to
                     vote personally such Holder Votes, shall be deemed to be
                     surrendered by the Holder to Digicon and such Holder Votes
                     and the Voting Rights represented thereby shall cease
                     immediately upon the delivery by such Holder to the
                     Trustee of the certificates representing such Exchangeable
                     Shares in connection with the exercise by the Holder of
                     the Exchange Right or the occurrence of the automatic
                     exchange of Exchangeable Shares for shares of Digicon
                     Common Stock, as specified in Article 5 hereof (unless in
                     either case Digicon shall not have delivered the
                     Exchangeable Share Consideration deliverable in exchange
                     therefor to the Trustee for delivery to the Holders), or
                     upon the redemption of Exchangeable Shares pursuant to
                     Article 6 or Article 7 of the Exchangeable Share
                     Provisions, or upon the effective date of the liquidation,
                     dissolution or winding-up of Veritas pursuant to Article 5
                     of the Exchangeable Share Provisions, or upon the purchase
                     of Exchangeable Shares from the holder thereof by Digicon
                     pursuant to the exercise by Digicon of the Retraction Call
                     Right, the Redemption Call Right or the Liquidation Call
                     Right.

5.   EXCHANGE RIGHT AND AUTOMATIC EXCHANGE

                (a)  GRANT AND OWNERSHIP OF THE EXCHANGE RIGHT.  Digicon hereby
                     grants to the Trustee as trustee for and on behalf of,
                     and for the use and benefit of, the Holders (i) the right
                     (the "Exchange Right"), upon the occurrence and during the
                     continuance of an Insolvency Event, to require Digicon to
                     purchase from each or any Holder all or any part of the
                     Exchangeable Shares held by the Holders, and (ii) the
                     Automatic Exchange Rights, all in accordance with the
                     provisions of this agreement. Digicon hereby acknowledges
                     receipt from the Trustee as trustee for and on behalf of
                     the Holders of good and valuable consideration (and the
                     adequacy thereof) for the grant of the Exchange Right and
                     the Automatic Exchange Rights by Digicon to the Trustee. 
                     During the term of the Trust and subject to the terms and
                     conditions of this agreement, the Trustee shall possess
                     and be vested with full legal ownership of the Exchange
                     Right and the Automatic Exchange Rights and shall be
                     entitled to exercise all of the rights and powers of an
                     owner with respect to the Exchange Right and the Automatic
                     Exchange Rights, provided that the Trustee shall:

                     (iii) hold the Exchange Right and the Automatic Exchange 
                           Rights and the  legal title thereto as trustee
                           solely for the use and benefit of the Holders  in
                           accordance with the provisions of this agreement;
                           and


                                    -10-

<PAGE>   11
                        (iv) except as specifically authorized by this
                             agreement, have no  power or authority to
                             exercise or otherwise deal in or with the Exchange 
                             Right or the Automatic Exchange Rights, and the
                             Trustee shall not exercise  any such rights for
                             any purpose other than the purposes for which this
                             Trust  is created pursuant to this agreement.

                (b)  LEGENDED SHARE CERTIFICATES.  Veritas will cause each 
                     certificate representing Exchangeable Shares to bear an 
                     appropriate legend notifying the Holders of:

                        (i) their right to instruct the Trustee with
                            respect to the exercise of  the Exchange Right in
                            respect of the Exchangeable Shares held by a
                            Holder;  and

                       (ii) the Automatic Exchange Rights.

                (c)  GENERAL EXERCISE OF EXCHANGE RIGHT.  The Exchange Right 
                     shall be and remain vested in and exercised by the
                     Trustee.  Subject to Section 7(o) hereof, the Trustee
                     shall exercise the Exchange Right only on the basis of
                     instructions received pursuant to this Article 5 from
                     Holders entitled to instruct the Trustee as to the
                     exercise thereof.  To the extent that no instructions are
                     received from a Holder with respect to the Exchange Right,
                     the Trustee shall not exercise or permit the exercise of
                     the Exchange Right.

                (d)  PURCHASE PRICE.  The purchase price payable by Digicon for
                     each Exchangeable Share to be purchased by Digicon
                     under the Exchange Right shall be an amount equal to the
                     Exchangeable Share Price on the last Business Day prior to
                     the day of closing of the purchase and sale of such
                     Exchangeable Share under the Exchange Right.  In
                     connection with each exercise of the Exchange Right,
                     Digicon will provide to the Trustee an Officer's
                     Certificate setting forth the calculation of the
                     Exchangeable Share Price for each Exchangeable Share.  The
                     Exchangeable Share Price for each such Exchangeable Share
                     so purchased may be satisfied only by Digicon issuing and
                     delivering or causing to be delivered to the Trustee, on
                     behalf of the relevant Holder, the Exchangeable Share
                     Consideration representing the total Exchangeable Share
                     Price.

                (e)  EXERCISE INSTRUCTIONS.  Subject to the terms and 
                     conditions herein set forth, a Holder shall be
                     entitled, upon the occurrence and during the continuance
                     of an Insolvency Event, to instruct the Trustee to
                     exercise the Exchange Right with respect to all or any
                     part of the Exchangeable Shares registered in the name of
                     such Holder on the books of Veritas.  To cause the
                     exercise of the Exchange Right by the Trustee, the Holder
                     shall deliver to the Trustee, in person or by certified or
                     registered mail, at its principal office in Calgary,
                     Alberta or at such other places in Canada as the Trustee
                     may from time to time designate by written notice to the
                     Holders, the certificates representing the Exchangeable
                     Shares which such Holder desires Digicon to purchase, duly
                     endorsed in blank, and accompanied by such other documents
                     and instruments as may be required to effect a transfer of
                     Exchangeable Shares under the Business Corporations Act
                     (Alberta) and the by-laws of Veritas and such additional
                     documents

                                    -11-
<PAGE>   12
                     and instruments as the Trustee may reasonably require
                     together with (i) a duly completed form of notice of
                     exercise of the Exchange Right, contained on the reverse
                     of or attached to the Exchangeable Share certificates,
                     stating (A) that the Holder thereby instructs the Trustee
                     to exercise the Exchange Right so as to require Digicon
                     to purchase from the Holder the number of Exchangeable
                     Shares specified therein, (B) that such Holder has good
                     title to and owns all such Exchangeable Shares to be
                     acquired by Digicon free and clear of all liens, claims
                     and encumbrances, (C) the names in which the certificates
                     representing Digicon Common Stock issuable in connection
                     with the exercise of the Exchange Right are to be issued
                     and (D) the names and addresses of the persons to whom
                     the Exchangeable Share Consideration should be delivered
                     and (ii) payment (or evidence satisfactory to the
                     Trustee, Veritas and Digicon of payment) of the taxes (if
                     any) payable as contemplated by Section 5(h) of this
                     agreement.  If only a part of the Exchangeable Shares
                     represented by any certificate or certificates delivered
                     to the Trustee are to be purchased by Digicon under the
                     Exchange Right, a new certificate for the balance of such
                     Exchangeable Shares shall be issued to the Holder at the
                     expense of Veritas.

                (f)  DELIVERY OF EXCHANGEABLE SHARE CONSIDERATION; EFFECT OF 
                     EXERCISE.  Promptly after receipt of the certificates
                     representing the Exchangeable Shares which the Holder
                     desires Digicon to purchase under the Exchange Right
                     (together with such documents and instruments of transfer
                     and a duly completed form of notice of exercise of the
                     Exchange Right), duly endorsed for transfer to Digicon,
                     the Trustee shall notify Digicon and Veritas of its
                     receipt of the same, which notice to Digicon and Veritas
                     shall constitute exercise of the Exchange Right by the
                     Trustee on behalf of the Holder of such Exchangeable
                     Shares, and Digicon shall immediately thereafter deliver
                     or cause to be delivered to the Trustee, for delivery to
                     the Holder of such Exchangeable Shares (or to such other
                     persons, if any, properly designated by such Holder), the
                     Exchangeable Share Consideration deliverable in connection
                     with the exercise of the Exchange Right;  provided,
                     however, that no such delivery shall be made unless and
                     until the Holder requesting the same shall have paid (or
                     provided evidence satisfactory to the Trustee, Veritas and
                     Digicon of the payment of) the taxes (if any) payable as
                     contemplated by Section 5(h) of this agreement.
                     Immediately upon the giving of notice by the Trustee to
                     Digicon and Veritas of the exercise of the Exchange Right,
                     as provided in this Section 5(f), the closing of the
                     transaction of purchase and sale contemplated by the
                     Exchange Right shall be deemed to have occurred, and the
                     Holder of such Exchangeable Shares shall be deemed to have
                     transferred to Digicon all of its right, title and
                     interest in and to such Exchangeable Shares and in the
                     related interest in the Trust Estate and shall cease to be
                     a holder of such Exchangeable Shares and shall not be
                     entitled to exercise any of the rights of a holder in
                     respect thereof, other than the right to receive his
                     proportionate part of the total purchase price therefor,
                     unless such Exchangeable Share Consideration is not
                     delivered by Digicon to the Trustee, for delivery to such
                     Holder (or to such other persons, if any, properly
                     designated by such Holder), within five Business Days of
                     the date of the giving of such notice by the Trustee, in
                     which case the rights of the Holder shall remain
                     unaffected until such Exchangeable Share Consideration is
                     delivered by Digicon and any cheque included therein is
                     paid.  Concurrently with such Holder ceasing to be a
                     holder of Exchangeable Shares, the Holder shall be
                     considered and 

                                    -12-

<PAGE>   13


                     deemed for all purposes to be the  holder of the shares of 
                     Digicon Common Stock delivered to it pursuant to the
                     Exchange Right.  Notwithstanding the foregoing until the
                     Exchangeable Share Consideration is delivered to the
                     Holder, the Holder shall be deemed to still be a holder of
                     the sold Exchangeable Shares for purposes of voting rights
                     with respect thereto under this agreement.

                (g)  EXERCISE OF EXCHANGE RIGHT SUBSEQUENT TO RETRACTION.  In 
                     the event that a Holder has exercised its right under
                     Article 6 of the Exchangeable Share Provisions to require
                     Veritas to redeem any or all of the Exchangeable Shares
                     held by the Holder (the "Retracted Shares") and is
                     notified by Veritas pursuant to Section 6.6 of the
                     Exchangeable Share Provisions that Veritas will not be
                     permitted as a result of liquidity or solvency
                     requirements of applicable law to redeem all such
                     Retracted Shares, subject to receipt by the Trustee of
                     written notice to that effect from Veritas and provided
                     that Digicon shall not have exercised the Retraction Call
                     Right with respect to the Retracted Shares and that the
                     Holder has not revoked the retraction request delivered by
                     the Holder to Veritas pursuant to Section 6.1 of the
                     Exchangeable Share Provisions, the retraction request will
                     constitute and will be deemed to constitute notice from
                     the Holder to the Trustee instructing the Trustee to
                     exercise the Exchange Right with respect to those
                     Retracted Shares which Veritas is unable to redeem.  In
                     any such event, Veritas hereby agrees with the Trustee and
                     in favour of the Holder immediately to notify the Trustee
                     of such prohibition against Veritas redeeming all of the
                     Retracted Shares and immediately to forward or cause to be
                     forwarded to the Trustee all relevant materials delivered
                     by the Holder to Veritas or to the transfer agent of the
                     Exchangeable Shares (including without limitation a copy
                     of the retraction request delivered pursuant to Section
                     6.1 of the Exchangeable Share Provisions) in connection
                     with such proposed redemption of the Retracted Shares and
                     the Trustee will thereupon exercise the Exchange Right
                     with respect to the Retracted Shares that Veritas is not
                     permitted to redeem and will require Digicon to purchase
                     such shares in accordance with the provisions of this
                     Article 5.

                (h)  STAMP OR OTHER TRANSFER TAXES.  Upon any sale of 
                     Exchangeable Shares to Digicon pursuant to the Exchange
                     Right or the Automatic Exchange Rights, the share
                     certificate or certificates representing Digicon Common
                     Stock to be delivered in connection with the payment of
                     the total purchase price therefor shall be issued in the
                     name of the Holder of the Exchangeable Shares so sold or
                     in such names as such Holder may otherwise direct in
                     writing without charge to the holder of the Exchangeable
                     Shares so sold, provided, however, that such Holder (i)
                     shall pay (and neither Digicon, Veritas nor the Trustee
                     shall be required to pay) any documentary, stamp, transfer
                     or other similar taxes that may be payable in respect of
                     any transfer involved in the issuance or delivery of such
                     shares to a person other than such Holder or (ii) shall
                     have established to the satisfaction of the Trustee,       
                     Digicon and Veritas that such taxes, if any, have been
                     paid.


                                    -13-

<PAGE>   14
                (i)  NOTICE OF INSOLVENCY EVENT.  Immediately upon the 
                     occurrence of an Insolvency Event or any event which
                     with the giving of notice or the passage of time or both
                     would be an Insolvency Event, Veritas and Digicon shall
                     give written notice thereof to the Trustee.  As soon as
                     practicable after receiving notice from Veritas and
                     Digicon or from any other Person of the occurrence of an
                     Insolvency Event, the Trustee will mail to each Holder, at
                     the expense of Digicon, a notice of such Insolvency Event
                     in the form provided by Digicon, which notice shall
                     contain a brief statement of the right of the Holders with
                     respect to the Exchange Right.

                (j)  QUALIFICATION OF DIGICON COMMON STOCK. Digicon covenants 
                     that if any shares of Digicon Common Stock to be issued
                     and delivered pursuant to the Exchange Right or the
                     Automatic Exchange Rights require registration or
                     qualification with or approval of or the filing of any
                     document including any prospectus or similar document or
                     the taking of any proceeding with or the obtaining of any
                     order, ruling or consent from any governmental or
                     regulatory authority under any Canadian or United States
                     federal, provincial or state law or regulation or pursuant
                     to the rules and regulations of any regulatory authority
                     or the fulfillment of any other legal requirement
                     (collectively, the "Applicable Laws") before such shares
                     may be issued and delivered by Digicon to the initial
                     holder thereof (other than Veritas) or in order that such
                     shares may be freely traded thereafter (other than any
                     restrictions on transfer by reason of a holder being a
                     "control person" of Digicon for purposes of Canadian
                     federal or provincial securities law or an "affiliate" of
                     Digicon for purposes of United States federal or state
                     securities law), Digicon will in good faith expeditiously
                     take all such actions and do all such things as are
                     necessary to cause such shares of Digicon Common Stock to
                     be and remain duly registered, qualified or approved. 
                     Digicon represents and warrants that it has in good faith
                     taken all actions and done all things as are necessary
                     under Applicable Laws as they exist on the date hereof to
                     cause the shares of Digicon Common Stock to be issued and
                     delivered pursuant to the Exchange Right and the Automatic
                     Exchange Rights and to be freely tradeable thereafter
                     (other than restrictions on transfer by reason of a holder
                     being a "control person" of Digicon for the purposes of
                     Canadian federal and provincial securities law or an
                     "affiliate" of Digicon for the purposes of United States
                     federal or state securities law).  Digicon will in good
                     faith expeditiously take all such actions and do all such
                     things as are necessary to cause all shares of Digicon
                     Common Stock to be delivered pursuant to the Exchange
                     Right or the Automatic Exchange Rights to be listed,
                     quoted or posted for trading on all stock exchanges and
                     quotation systems on which such shares are listed, quoted
                     or posted for trading at such time.

                (k)  RESERVATION OF SHARES OF DIGICON COMMON STOCK.

                     Digicon hereby represents, warrants and covenants that it
                     has irrevocably reserved for issuance and will at all
                     times keep available, free from pre-emptive and other
                     rights, out of its authorized and unissued capital stock
                     such number of shares of Digicon Common Stock (i) as is
                     equal to the sum of (A) the number of Exchangeable Shares
                     issued and outstanding from time to time and (B) the
                     number of Exchangeable Shares issuable upon the exercise
                     of all rights to acquire Exchangeable Shares outstanding
                     from time to time and (ii) as are now and may hereafter
                     be required to enable and 


                                    -14-

<PAGE>   15

                     permit Veritas to meet its obligations hereunder, under
                     the Restated Certificate of Incorporation of Digicon,
                     under the Support Agreement, under the Exchangeable Share
                     Provisions and under any other security or commitment
                     pursuant to the Arrangement with respect to which Digicon
                     may now or hereafter be required to issue shares of
                     Digicon Common Stock.

                (l)  AUTOMATIC EXCHANGE ON LIQUIDATION OF DIGICON.

                        (i) Digicon will give the Trustee written notice of
                            each of the following events at the time set forth
                            below:

                            (A)  in the event of any determination by the 
                                 board of directors of the  Digicon to 
                                 institute voluntary liquidation,
                                 dissolution or winding-up proceedings with
                                 respect to Digicon or to effect any other
                                 distribution  of assets of Digicon among its
                                 stockholders for the purpose of winding-up 
                                 its affairs, at least 60 days prior to the
                                 proposed effective date of such liquidation,
                                 dissolution, winding-up or other distribution;
                                 and

                            (B)  immediately, upon the earlier of (I) receipt 
                                 by Digicon of notice of and (II)
                                 Digicon otherwise becoming aware of any
                                 threatened or  instituted claim, suit,
                                 petition or other proceedings with respect to
                                 the  involuntary liquidation, dissolution or
                                 winding-up of Digicon or to effect any other
                                 distribution of assets of Digicon among its
                                 stockholders  for the purpose of winding-up
                                 its affairs.

                       (ii) Immediately following receipt by the Trustee
                            from Digicon of notice of any event (a "Liquidation
                            Event") contemplated by Section 5(l)(i) above, the
                            Trustee will give notice thereof to the Holders.
                            Such notice will be provided by Digicon to the
                            Trustee and shall include a brief description of
                            the automatic exchange of Exchangeable Shares for
                            shares of Digicon Common Stock provided for in
                            Section 5(l)(iii) below.

                      (iii) In order that the Holders will be able to
                            participate on a PRO RATA basis with the holders of
                            Digicon Common Stock in the distribution of assets
                            of Digicon in connection with a Liquidation Event,
                            immediately prior to the effective time (the
                            "Liquidation Event Effective Time") of a
                            Liquidation Event all of the then outstanding
                            Exchangeable Shares shall be automatically
                            exchanged for shares of Digicon Common Stock.  To
                            effect such automatic exchange, Digicon shall be
                            deemed to have purchased each Exchangeable Share
                            outstanding immediately prior to the Liquidation
                            Event Effective Time and held by Holders, and each
                            Holder shall be deemed to have sold the
                            Exchangeable Shares held by it at such time, for a
                            purchase price per share equal to the Exchangeable
                            Share Price applicable at such time.  In connection
                            with such automatic exchange, Digicon will provide
                            to the Trustee an Officer's Certificate setting
                            forth the calculation of the purchase price for
                            each Exchangeable Share.


                                    -15-

<PAGE>   16

                       (iv) The closing of the transaction of purchase and
                            sale contemplated by Section 5(l)(iii) above shall
                            be deemed to have occurred immediately prior to the
                            Liquidation Event Effective Time, and each Holder
                            of Exchangeable Shares shall be deemed to have
                            transferred to Digicon all of the Holder's right,
                            title and interest in and to such Exchangeable
                            Shares and the related interest in the Trust Estate
                            and shall cease to be a holder of such Exchangeable
                            Shares and Digicon shall deliver to the Holder the
                            Exchangeable Share Consideration deliverable upon
                            the automatic exchange of Exchangeable Shares.
                            Concurrently with such Holder ceasing to be a
                            holder of Exchangeable Shares, the Holder shall be
                            considered and deemed for all purposes to be
                            the holder of the shares of Digicon
                            Common Stock issued to it pursuant to the automatic
                            exchange of Exchangeable Shares for Digicon Common
                            Stock and the certificates held by the Holder
                            previously representing the Exchangeable Shares
                            exchanged by the Holder with Digicon pursuant to
                            such automatic exchange shall thereafter be deemed
                            to represent the shares of Digicon Common Stock
                            issued to the Holder by Digicon pursuant to such
                            automatic exchange.  Upon the request of a Holder
                            and the surrender by the Holder of Exchangeable
                            Share certificates deemed to represent shares of
                            Digicon Common Stock, duly endorsed in blank and
                            accompanied by such instruments of transfer as
                            Digicon may reasonably require, Digicon shall
                            deliver or cause to be delivered to the Holder
                            certificates representing the shares of Digicon
                            Common Stock of which the Holder is the holder.
                            Notwithstanding the foregoing until each Holder is
                            actually entered on the register of holders of
                            Digicon Common Stock, such Holder shall be deemed
                            to still be a holder of the transferred
                            Exchangeable Shares for purposes of all voting
                            rights with respect thereto under this agreement.

6.   RESTRICTIONS ON ISSUANCE OF DIGICON SPECIAL VOTING STOCK

                During the term of this agreement, Digicon will not issue any
                shares of Digicon Special Voting Stock in addition to the
                Voting Share.

7.   CONCERNING THE TRUSTEE

                (a)  POWERS AND DUTIES OF THE TRUSTEE.  The rights, powers and 
                     authorities of the Trustee under this agreement, in its
                     capacity as trustee of the Trust, shall include:

                        (i) receipt and deposit of the Voting Share from
                            Digicon as trustee  for and on behalf of the
                            Holders in accordance with the provisions of this
                            agreement;

                       (ii) granting proxies and distributing materials to
                            Holders as provided  in this agreement;

                      (iii) voting the Holder Votes in accordance with
                            the provisions of this  agreement;

                                    -16-

<PAGE>   17


                       (iv) receiving the grant of the Exchange Right and
                            the Automatic Exchange  Rights from Digicon as
                            trustee for and on behalf of the Holders in
                            accordance with the provisions of this agreement;

                        (v) exercising the Exchange Right and enforcing the
                            benefit of the  Automatic Exchange Rights, in each
                            case in accordance with the provisions of  this
                            agreement, and in connection therewith receiving
                            from Holders  Exchangeable Shares and other
                            requisite documents and distributing to such
                            Holders the shares of Digicon Common Stock and
                            cheques, if any, to which such  Holders are
                            entitled upon the exercise of the Exchange Right or
                            pursuant to  the Automatic Exchange Rights, as the
                            case may be;

                       (vi) holding title to the Trust Estate;

                      (vii) investing any moneys forming, from time to
                            time, a part of the Trust  Estate as provided in
                            this agreement;

                     (viii) taking action at the direction of a Holder
                            or Holders to enforce the  obligations of Digicon
                            under this agreement; and

                       (ix) taking such other actions and doing such other
                            things as are  specifically provided in this
                            agreement.

                In the exercise of such rights, powers and authorities the
                Trustee shall have (and is granted) such incidental and
                additional rights, powers and authority not in conflict with
                any of the provisions of this agreement as the Trustee, acting
                in good faith and in the reasonable exercise of its discretion,
                may deem necessary, appropriate or desirable to effect the
                purpose of the Trust.  Any exercise of such discretionary
                rights, powers and authorities by the Trustee shall be final,
                conclusive and binding upon all persons.  For greater
                certainty, the Trustee shall have only those duties as are set
                out specifically in this agreement.

                The Trustee in exercising its rights, powers, duties and
                authorities hereunder shall act honestly and in good faith with
                a view to the best interests of the Holders and shall exercise
                the care, diligence and skill that a reasonably prudent trustee
                would exercise in comparable circumstances.

                The Trustee shall not be bound to give any notice or do or take
                any act, action or proceeding by virtue of the powers conferred
                on it hereby unless and until it shall be specifically required
                to do so under the terms hereof; nor shall the Trustee be
                required to take any notice of, or to do or to take any act,
                action or proceeding as a result of any default or breach of
                any provision hereunder, unless and until notified in writing
                of such default or breach, which notices shall distinctly
                specify the default or breach desired to be brought to the
                attention of the Trustee and in the absence of such notice the
                Trustee may for all purposes of this agreement conclusively
                assume that no default or breach has been made in the
                observance or performance of any of the representations, 
                warranties, covenants, agreements or conditions contained 
                herein.


                                    -17-

<PAGE>   18
                (b)  NO CONFLICT OF INTEREST.  The Trustee represents to 
                     Veritas and Digicon that at the date of execution and
                     delivery of this agreement there exists no material
                     conflict of interest in the role of the Trustee as a
                     fiduciary hereunder and the role of the Trustee in any
                     other capacity.  The Trustee shall, within 90 days after
                     it becomes aware that such a material conflict of interest
                     exists, either eliminate such material conflict of
                     interest or resign in the manner and with the effect
                     specified in Article 10 hereof.  If, notwithstanding the
                     foregoing provisions of this Section 7(b), the Trustee has
                     such a material conflict of interest, the validity and
                     enforceability of this agreement shall not be affected in
                     any manner whatsoever by reason only of the existence of
                     such material conflict of interest.  If the Trustee
                     contravenes the foregoing provisions of this Section 7(b),
                     any interested party may apply to the Alberta Court of
                     Queen's Bench an order that the Trustee be replaced as
                     trustee hereunder.

                (c)  DEALINGS WITH TRANSFER AGENTS, REGISTRARS, ETC.  Veritas 
                     and Digicon irrevocably authorize the Trustee, from time 
                     to time, to:

                        (i) consult, communicate and otherwise deal with
                            the respective  registrars and transfer agents, and
                            with any such subsequent registrar or  transfer
                            agent, of the Exchangeable Shares and Digicon
                            Common Stock; and

                       (ii) requisition, from time to time, (A) from any
                            such registrar or  transfer agent any information
                            readily available from the records maintained  by
                            it which the Trustee may reasonably require for the
                            discharge of its  duties and responsibilities under
                            this agreement and (B) from the  transfer agent of
                            Digicon Common Stock, and any subsequent transfer
                            agent  of such shares, the share certificates
                            issuable upon the exercise from time  to time of
                            the Exchange Right and pursuant to the Automatic
                            Exchange Rights  in the manner specified in Article
                            5 hereof.

                Veritas and Digicon irrevocably authorize their respective
                registrars and transfer agents to comply with all such
                requests.  Digicon covenants that it will supply its transfer
                agent with duly executed share certificates for the purpose of
                completing the exercise from time to time of the Exchange Right
                and the Automatic Exchange Rights, in each case pursuant to
                Article 5 hereof.

                (d)  BOOKS AND RECORDS.  The Trustee shall keep available for 
                     inspection by Digicon and Veritas, at the Trustee's
                     principal office in Calgary, Alberta, correct and complete
                     books and records of account relating to the Trustee's
                     actions under this agreement, including without limitation
                     all information relating to mailings and instructions to
                     and from Holders and all transactions pursuant to the
                     Voting Rights, the Exchange Right and the Automatic
                     Exchange Rights for the term of this agreement. On or
                     before June 30, 1997, and on or before June 30 in every
                     year thereafter, so long as the Voting Share is on deposit
                     with the Trustee, the Trustee shall transmit to Digicon
                     and Veritas a brief report, dated as of the preceding
                     March 31, with respect to:

                        (i) the property and funds comprising the Trust
                            Estate as of that date;


                                    -18-

<PAGE>   19

                       (ii) the number of exercises of the Exchange Right,
                            if any, and the  aggregate number of Exchangeable
                            Shares received by the Trustee on behalf of
                            Holders in consideration of the issue and delivery
                            by Digicon of shares  of Digicon Common Stock in
                            connection with the Exchange Right, during the
                            calendar year ended on such date; and

                      (iii) all other actions taken by the Trustee in the
                            performance of its  duties under this agreement
                            which it had not previously reported.

                (e)  INCOME TAX RETURNS AND REPORTS.  The Trustee shall, to the 
                     extent necessary, prepare and file on behalf of the
                     Trust appropriate United States and Canadian income tax
                     returns and any other returns or reports as may be
                     required by applicable law or pursuant to the rules and
                     regulations of any securities exchange or other trading
                     system through which the Exchangeable Shares are traded
                     and, in connection therewith, may obtain the advice and
                     assistance of such experts as the Trustee may consider
                     necessary or advisable.  If requested by the Trustee,
                     Digicon shall retain such experts for purposes of
                     providing such advice and assistance.

                (f)  INDEMNIFICATION PRIOR TO CERTAIN ACTIONS BY TRUSTEE.  The 
                     Trustee shall exercise any or all of the rights,
                     duties, powers or authorities vested in it by this
                     agreement at the request, order or direction of any Holder
                     upon such Holder furnishing to the Trustee reasonable
                     funding, security and indemnity against the costs,
                     expenses and liabilities which may be incurred by the
                     Trustee therein or thereby, provided that no Holder shall
                     be obligated to furnish to the Trustee any such funding,
                     security or indemnity in connection with the exercise by
                     the Trustee of any of its rights, duties, powers and
                     authorities with respect to the Voting Share pursuant to
                     Article 4 hereof, subject to Section 7(o) hereof, and with
                     respect to the Exchange Right pursuant to Article 5
                     hereof, subject to Section 7(o) hereof, and with respect
                     to the Automatic Exchange Rights pursuant to Article 5
                     hereof.

                     None of the provisions contained in this agreement shall
                     require the Trustee to expend or risk its own funds or
                     otherwise incur financial liability in the exercise of
                     any of its rights, powers, duties or authorities unless
                     funded, given funds, security and indemnified as
                     aforesaid.

                (g)  ACTIONS BY HOLDERS.  No Holder shall have the right to 
                     institute any action, suit or proceeding or to exercise
                     any other remedy authorized by this agreement for the
                     purpose of enforcing any of its rights or for the
                     execution of any trust or power hereunder unless the
                     Holder has requested the Trustee to take or institute such
                     action, suit or proceeding and furnished the Trustee with
                     the funding, security and indemnity referred to in Section
                     7(f) hereof and the Trustee shall have failed to act
                     within a reasonable time thereafter.  In such case, but
                     not otherwise, the Holder shall be entitled to take
                     proceedings in any court of competent jurisdiction such as
                     the Trustee might have taken; it being understood and
                     intended that no one or more Holders shall have any right
                     in any manner whatsoever to affect, disturb or prejudice
                     the rights hereby created by any such action, or to
                     enforce any right hereunder or under the 

                                    -19-

<PAGE>   20

                     Voting Rights, the Exchange Right or the Automatic
                     Exchange Rights, except subject to the conditions and in
                     the manner herein provided, and that all powers and trusts
                     hereunder shall be exercised and all proceedings at law
                     shall be instituted, had and maintained by the Trustee,
                     except only as herein provided, and in any event for the
                     equal benefit of all Holders.

                (h)  RELIANCE UPON DECLARATIONS.  The Trustee
                     shall not be considered to be in contravention of any of
                     its rights, powers, duties and authorities hereunder if,
                     when required, it acts and relies in good faith upon
                     lists, mailing labels, notices, statutory declarations,
                     certificates, opinions, reports or other papers or
                     documents furnished pursuant to the provisions hereof or
                     required by the Trustee to be furnished to it in the
                     exercise of its rights, powers, duties and authorities
                     hereunder and such lists, mailing labels, notices,
                     statutory declarations, certificates, opinions, reports or
                     other papers or documents comply with the provisions of
                     Section 7(i) hereof, if applicable, and with any other
                     applicable provisions of this agreement.

                (i)  EVIDENCE AND AUTHORITY TO TRUSTEE.
                     Veritas and/or Digicon shall furnish to the Trustee
                     evidence of compliance with the conditions provided for in
                     this agreement relating to any action or step required or
                     permitted to be taken by Veritas and/or Digicon or the
                     Trustee under this agreement or as a result of any
                     obligation imposed under this agreement, including,
                     without limitation, in respect of the Voting Rights or the
                     Exchange Right or the Automatic Exchange Rights and the
                     taking of any other action to be taken by the Trustee at
                     the request of or on the application of Veritas and/or
                     Digicon forthwith if and when:

                        (i) such evidence is required by any other section
                            of this agreement to be furnished to the Trustee in
                            accordance with the terms of  this Section 7(i); or

                       (ii) the Trustee, in the exercise of its rights,
                            powers, duties and  authorities under this
                            agreement, gives Veritas and/or Digicon  written
                            notice requiring it to furnish such evidence in
                            relation to any  particular action or obligation
                            specified in such notice.

                      Such evidence shall consist of an Officer's Certificate
                      of Veritas and/or Digicon or a statutory declaration or a
                      certificate made by persons entitled to sign an Officer's
                      Certificate stating that any such condition has been
                      complied with in accordance with the terms of this
                      agreement.

                      Whenever such evidence relates to a matter other than the
                      Voting Rights or the Exchange Right or the Automatic
                      Exchange Rights, and except as otherwise specifically
                      provided herein, such evidence may consist of a report or
                      opinion of any solicitor, auditor, accountant, appraiser,
                      valuer, engineer or other expert or any other person
                      whose qualifications give authority to a statement made
                      by him, provided that if such report or opinion is
                      furnished by a director, officer or employee of Veritas
                      and/or Digicon it shall be in the form of an Officer's
                      Certificate or a statutory declaration.

                                    -20-

<PAGE>   21


                      Each statutory declaration, certificate, opinion or
                      report furnished to the Trustee as evidence of compliance
                      with a condition provided for in this agreement shall
                      include a statement by the person giving the evidence:

                      (iii) declaring that he has read and understands
                            the provisions of this  agreement relating to the
                            condition in question:

                       (iv) describing the nature and scope of the
                            examination or investigation  upon which he based
                            the statutory declaration, certificate, statement
                            or  opinion; and

                        (v) declaring that he has made such examination or
                            investigation as he  believes is necessary to
                            enable him to make the statements or give the
                            opinions contained or expressed therein.

                (j)  EXPERTS, ADVISERS AND AGENTS.  The Trustee may:

                        (i) in relation to these presents act and rely on
                            the opinion or advice of or information obtained
                            from or prepared by any solicitor, auditor,
                            accountant, appraiser, valuer, engineer or other
                            expert, whether retained by the Trustee or by
                            Veritas and/or Digicon or otherwise, and may employ
                            such assistants as may be necessary to the proper
                            determination and discharge of its powers and
                            duties and determination of its rights hereunder
                            and may pay proper and reasonable compensation for
                            all such legal and other advice or assistance as
                            aforesaid; and

                       (ii) employ such agents and other assistants as it
                            may reasonably require for the proper determination
                            and discharge of its powers and duties hereunder,
                            and may pay reasonable remuneration for all
                            services performed for it (and shall be entitled to
                            receive reasonable remuneration for all services
                            performed by it) in the discharge of the trusts
                            hereof and compensation for all disbursements,
                            costs and expenses made or incurred by it in the
                            determination and discharge of its duties hereunder
                            and in the management of the Trust.

                (k)  INVESTMENT OF MONEYS HELD BY TRUSTEE.
                     Unless otherwise provided in this agreement, any moneys
                     held by or on behalf of the Trustee which under the terms
                     of this agreement may or ought to be invested or which may
                     be on deposit with the Trustee or which may be in the
                     hands of the Trustee may be invested and reinvested in the
                     name or under the control of the Trustee in securities in
                     which, under the laws of the Province of Alberta, trustees
                     are authorized to invest trust moneys, provided that such
                     securities are stated to mature within two years after
                     their purchase by the Trustee, and the Trustee shall so
                     invest such moneys on the written direction of Veritas.
                     Pending the investment of any moneys as hereinbefore
                     provided, such moneys may be deposited in the name of the
                     Trustee in any chartered bank in Canada or, with the
                     consent of Veritas, in the deposit department of the
                     Trustee or any other loan or trust company authorized to
                     accept deposits under the laws of Canada or any province
                     thereof at the rate of interest then current on similar
                     deposits.


                                    -21-

<PAGE>   22

                (l)  TRUSTEE NOT REQUIRED TO GIVE SECURITY.
                     The Trustee shall not be required to give any bond or
                     security in respect of the execution of the trusts,
                     rights, duties, powers and authorities of this agreement
                     or otherwise in respect of the premises.

                (m)  TRUSTEE NOT BOUND TO ACT ON REQUEST.
                     Except as in this agreement otherwise specifically
                     provided, the Trustee shall not be bound to act in
                     accordance with any direction or request of Veritas and/or
                     Digicon or of the directors thereof until a duly
                     authenticated copy of the instrument or resolution 
                     containing such direction or request shall have been
                     delivered to the Trustee,  and the Trustee shall be
                     empowered to act and rely upon any such copy purporting to
                     be authenticated and believed by the Trustee to be
                     genuine.

                (n)  AUTHORITY TO CARRY ON BUSINESS.  The
                     Trustee represents to Veritas and Digicon that at the date
                     of execution and delivery by it of this agreement it is
                     authorized to carry on the business of a trust company in
                     the Province of Alberta but if, notwithstanding the
                     provisions of this Section 7(n), it ceases to be so
                     authorized to carry on business, the validity and
                     enforceability of this agreement and the Voting Rights,
                     the Exchange Right and the Automatic Exchange Rights shall
                     not be affected in any manner whatsoever by reason only of
                     such event but the Trustee shall, within 90 days after
                     ceasing to be authorized to carry on the business of a
                     trust company in the Province of Alberta, either become so
                     authorized or resign in the manner and with the effect
                     specified in Article 10 hereof.

                (o)  CONFLICTING CLAIMS.  If conflicting
                     claims or demands are made or asserted with respect to any
                     interest of any Holder in any Exchangeable Shares,
                     including any disagreement between the heirs,
                     representatives, successors or assigns succeeding to all
                     or any part of the interest of any Holder in any
                     Exchangeable Shares resulting in conflicting claims or
                     demands being made in connection with such interest, then
                     the Trustee shall be entitled, at its sole discretion, to
                     refuse to recognize or to comply with any such claim or
                     demand. In so refusing, the Trustee may elect not to
                     exercise any Voting Rights, Exchange Right or Automatic
                     Exchange Rights subject to such conflicting claims or
                     demands and, in so doing, the Trustee shall not be or
                     become liable to any person on account of such election or
                     its failure or refusal to comply with any such conflicting
                     claims or demands.  The Trustee shall be entitled to
                     continue to refrain from acting and to refuse to act
                     until:

                        (i) the rights of all adverse claimants with
                            respect to the Voting  Rights, Exchange Right or
                            Automatic Exchange Rights subject to such
                            conflicting claims or demands have been adjudicated
                            by a final judgment of a  court of competent
                            jurisdiction; or

                       (ii) all differences with respect to the Voting
                            Rights, Exchange Right or  Automatic Exchange
                            Rights subject to such conflicting claims or
                            demands have  been conclusively settled by a valid
                            written agreement binding on all 


                                    -22-

<PAGE>   23

                            such  adverse claimants, and the Trustee            
                            shall have been furnished with an  executed copy of
                            such agreement.


                      If the Trustee elects to recognize any claim or comply
                      with any demand made by any such adverse claimant, it may
                      in its discretion require such claimant to furnish such
                      surety bond or other security satisfactory to the Trustee
                      as it shall deem appropriate fully to indemnify it as
                      between all conflicting claims or demands.

                (p)  ACCEPTANCE OF TRUST.  The Trustee hereby
                     accepts the Trust created and provided for by and in this
                     agreement and agrees to perform the same upon the terms
                     and conditions herein set forth and to hold all rights,
                     privileges and benefits conferred hereby and by law in
                     trust for the various persons who shall from time to time
                     be Holders, subject to all the terms and conditions herein
                     set forth.

8.   COMPENSATION

                (a)  Digicon and Veritas jointly and severally
                     agree to pay to the Trustee reasonable compensation for
                     all of the services rendered by it under this agreement
                     and will reimburse the Trustee for all reasonable expenses
                     (including but not limited to taxes, compensation paid to
                     experts, agents and advisors and travel expenses) and
                     disbursements, including the cost and expense of any suit
                     or litigation of any character and any proceedings before
                     any governmental agency reasonably incurred by the Trustee
                     in connection with its rights and duties under this
                     agreement; provided that Digicon and Veritas shall have no
                     obligation to reimburse the Trustee for any expenses or
                     disbursements paid, incurred or suffered by the Trustee in
                     any suit or litigation in which the Trustee is determined
                     to have acted in bad faith or with negligence or willful
                     misconduct.

9.   INDEMNIFICATION AND LIMITATION OF LIABILITY

                (a)  INDEMNIFICATION OF THE TRUSTEE.  Digicon
                     and Veritas jointly and severally agree to indemnify and
                     hold harmless the Trustee and each of its directors,
                     officers, employees and agents appointed and acting in
                     accordance with this agreement (collectively, the
                     "Indemnified Parties") against all claims, losses,
                     damages, costs, penalties, fines and reasonable expenses
                     (including reasonable expenses of the Trustee's legal
                     counsel on a solicitor and his own client basis) which,
                     without fraud, negligence, willful misconduct or bad faith
                     on the part of such Indemnified Party, may be paid,
                     incurred or suffered by the Indemnified Party by reason of
                     or as a result of the Trustee's acceptance or
                     administration of the Trust, its compliance with its
                     duties set forth in this agreement, or any written or oral
                     instructions delivered to the Trustee by Digicon or
                     Veritas pursuant hereto.  In no case shall Digicon or
                     Veritas be liable under this indemnity for any claim
                     against any of the Indemnified Parties unless Digicon and
                     Veritas shall be notified by the Trustee of the written
                     assertion of a claim or of any action commenced against
                     the Indemnified Parties, promptly after any of the 
                     Indemnified Parties shall have received any such written
                     assertion of a claim or shall have been served with a
                     summons or other first legal process giving information as
                     to the nature and basis of the claim. Subject to (ii),
                     below, Digicon and Veritas shall 

                                    -23-

<PAGE>   24

                     be entitled to participate at their own expense in the
                     defense and, if Digicon or Veritas so elect at any time
                     after receipt of such notice, either of them may assume
                     the defense of any suit brought to enforce any such claim. 
                     The Trustee shall have the right to employ separate
                     counsel in any such suit and participate in the defense
                     thereof but the fees and expenses of such counsel shall be
                     at the expense of the Trustee unless: (i) the employment
                     of such counsel has been authorized by Digicon or Veritas,
                     such authorization not to be unreasonably withheld; or
                     (ii) the named parties to any such suit include both the
                     Trustee and Digicon or Veritas and the Trustee shall have
                     been advised by counsel acceptable to Digicon or Veritas
                     that there may be one or more legal defenses available to
                     the Trustee that are different from or in addition to
                     those available to Digicon or Veritas and that an actual
                     or potential conflict of interest exists (in which case
                     Digicon and Veritas shall not have the right to assume the
                     defense of such suit on behalf of the Trustee but shall be
                     liable to pay the reasonable fees and expenses of counsel
                     for the Trustee).

                (b)  LIMITATION OF LIABILITY.  The Trustee
                     shall not be held liable for any loss which may occur by
                     reason of depreciation of the value of any part of the
                     Trust Estate or any loss incurred on any investment of
                     funds pursuant to this agreement, except to the extent
                     that such loss is attributable to the fraud, negligence,
                     willful misconduct or bad faith on the part of the
                     Trustee.

10.  CHANGE OF TRUSTEE

                (a)  RESIGNATION.  The Trustee, or any trustee
                     hereafter appointed, may at any time resign by giving
                     written notice of such resignation to Digicon and Veritas
                     specifying the date on which it desires to resign,
                     provided that such notice shall never be given less than
                     60 days before such desired resignation date unless
                     Digicon and Veritas otherwise agree and provided further
                     that such resignation shall not take effect until the date
                     of the appointment of a successor trustee and the
                     acceptance of such appointment by the successor trustee.
                     Upon receiving such notice of resignation, Digicon and
                     Veritas shall promptly appoint a successor trustee by
                     written instrument in duplicate, one copy of which shall
                     be delivered to the resigning trustee and one copy to the
                     successor trustee.  Failing acceptance by a successor
                     trustee, a successor trustee may be appointed by an order
                     of the Alberta Court of Queen's Bench upon application of
                     one or more of the parties hereto.

                (b)  REMOVAL.  The Trustee, or any trustee
                     hereafter appointed, may be removed with or without cause,
                     at any time on 60 days' prior notice by written instrument
                     executed by Digicon and Veritas, in duplicate, one copy of
                     which shall be delivered to the trustee so removed and one
                     copy to the successor trustee, provided that, in
                     connection with such removal, provision is made for a
                     replacement trustee similar to that contemplated in
                     Section 10(a).



                                    -24-

<PAGE>   25

                (c)  SUCCESSOR TRUSTEE.  Any successor trustee
                     appointed as provided under this agreement shall execute,
                     acknowledge and deliver to Digicon and Veritas and to its
                     predecessor trustee an instrument accepting such
                     appointment.  Thereupon the resignation or removal of the
                     predecessor trustee shall become effective and such
                     successor trustee, without any further act, deed or
                     conveyance, shall become vested with all the rights,
                     powers, duties and obligations of its predecessor under
                     this agreement, with like effect as if originally named as
                     trustee in this agreement.  However, on the written
                     request of Digicon and Veritas or of the successor
                     trustee, the trustee ceasing to act shall, upon payment of
                     any amounts then due it pursuant to the provisions of this
                     agreement, execute and deliver an instrument transferring
                     to such successor trustee all the rights and powers of the
                     trustee so ceasing to act.  Upon the request of any such
                     successor trustee, Digicon, Veritas and such predecessor
                     trustee shall execute any and all instruments in writing
                     for more fully and certainly vesting in and confirming to
                     such successor trustee all such rights and powers.

                (d)  NOTICE OF SUCCESSOR TRUSTEE.  Upon
                     acceptance of appointment by a successor trustee as
                     provided herein, Digicon and Veritas shall cause to be
                     mailed notice of the succession of such trustee hereunder
                     to each Holder specified in a List.  If Digicon or Veritas
                     shall fail to cause such notice to be mailed within 10
                     days after acceptance of appointment by the successor
                     trustee, the successor trustee shall cause such notice to
                     be mailed at the expense of Digicon and Veritas.

11.  DIGICON SUCCESSORS

                (a)  CERTAIN REQUIREMENTS IN RESPECT OF
                     COMBINATION, ETC.  Digicon shall not enter into any
                     transaction (whether by way of reconstruction,
                     reorganization, consolidation, merger, transfer, sale,
                     lease or otherwise) whereby all or substantially all of
                     its undertaking, property and assets would become the
                     property of any other Person or, in the case of a merger,
                     of the continuing corporation resulting therefrom unless,
                     but may do so if:

                        (i) such other Person or continuing corporation
                            (the "Digicon Successor"), by operation of law,
                            becomes, without more,  bound by the terms and
                            provisions of this agreement or, if not so  bound,
                            executes, prior to or contemporaneously with the
                            consummation of such  transaction an agreement
                            supplemental hereto and such other instruments  (if
                            any) as are satisfactory to the Trustee and in the
                            opinion of legal  counsel to the Trustee are
                            necessary or advisable to evidence the assumption
                            by the Digicon Successor of liability for all
                            moneys payable and property  deliverable hereunder
                            and the covenant of such Digicon Successor to pay
                            and  deliver or cause to be delivered the same and
                            its agreement to observe and  perform all the
                            covenants and obligations of Digicon under this
                            agreement; and

                       (ii) such transaction shall, to the satisfaction of
                            the Trustee and in  the opinion of legal counsel to
                            the Trustee, be upon such terms as  substantially
                            to preserve and not to impair in any material
                            respect any of  the rights, duties, powers and
                            authorities of the Trustee or of the Holders
                            hereunder.

                                    -25-

<PAGE>   26


                (b)  VESTING OF POWERS IN SUCCESSOR.  Whenever
                     the conditions of Section 11(a) hereof have been duly
                     observed and performed, the Trustee, if required, by
                     Section 11(a) hereof, the Digicon Successor and Veritas
                     shall execute and deliver the supplemental agreement
                     provided for in Article 12 hereof and thereupon the
                     Digicon Successor shall possess and from time to time may
                     exercise each and every right and power of Digicon under
                     this agreement in the name of Digicon or otherwise and any
                     act or proceeding by any provision of this agreement
                     required to be done or performed by the board of directors
                     of Digicon or any officers of Digicon may be done and
                     performed with like force and effect by the directors or
                     officers of such Digicon Successor.

                (c)  WHOLLY-OWNED SUBSIDIARIES.  Nothing
                     herein shall be construed as preventing the amalgamation
                     or merger of any wholly-owned subsidiary of Digicon with
                     or into Digicon or the winding-up, liquidation or
                     dissolution of any wholly-owned subsidiary of Digicon
                     provided that all of the assets of such subsidiary are
                     transferred to Digicon or another wholly-owned subsidiary
                     of Digicon, and any such transactions are expressly
                     permitted by this Article 11.

12.  AMENDMENTS AND SUPPLEMENTAL AGREEMENTS

                (a)  AMENDMENTS, MODIFICATIONS, ETC.  This
                     agreement may not be amended or modified except by an
                     agreement in writing executed by Veritas, Digicon and the
                     Trustee and approved by the Holders in accordance with
                     Section 9.2 of the Exchangeable Share Provisions.

                (b)  MINISTERIAL AMENDMENTS.  Notwithstanding
                     the provisions of Section 12(a) hereof, the parties to
                     this agreement may in writing, at
                     any time and from time to time, without the approval of
                     the Holders, amend or modify this agreement for the
                     purposes of:

                        (i) adding to the covenants of any or all of the
                            parties hereto for the  protection of the Holders
                            hereunder;

                       (ii) making such amendments or modifications not
                            inconsistent with this  agreement as may be
                            necessary or desirable with respect to matters or
                            questions which, in the opinion of the board of
                            directors of each of Digicon and Veritas and in the
                            opinion of the Trustee and its counsel, having  in
                            mind the best interests of the Holders as a whole,
                            it may be expedient to  make, provided that such
                            boards of directors and the Trustee and its counsel
                            shall be of the opinion that such amendments and
                            modifications will not be  prejudicial to the
                            interests of the Holders as a whole; or

                      (iii) making such changes or corrections which, on
                            the advice of counsel  to Veritas, Digicon and the
                            Trustee, are required for the purpose of  curing or
                            correcting any ambiguity or defect or inconsistent
                            provision or  clerical omission or mistake or
                            manifest error, provided that the Trustee  and its


                                    -26-

<PAGE>   27

                            counsel and the board of directors of each of
                            Veritas and Digicon shall be of the opinion that
                            such changes or corrections will not be
                            prejudicial to the interests of the Holders as a
                            whole.

                (c)  MEETING TO CONSIDER AMENDMENTS.  Veritas,
                     at the request of Digicon, shall call a meeting or
                     meetings of the Holders for the purpose of considering any
                     proposed amendment or modification requiring approval
                     pursuant hereto.  Any such meeting or meetings shall be
                     called and held in accordance with the by-laws of Veritas,
                     the Exchangeable Share Provisions and all applicable laws.

                (d)  CHANGES IN CAPITAL OF DIGICON AND
                     VERITAS.  At all times after the occurrence of any event
                     effected pursuant to Section 2(g) or Section 2(h) of the
                     Support Agreement, as a result of which either Digicon
                     Common Stock or the Exchangeable Shares or both are in any
                     way changed, this agreement shall forthwith be amended and
                     modified as necessary in order that it shall apply with
                     full force and effect, mutatis mutandis, to all new
                     securities into which Digicon Common Stock or the
                     Exchangeable Shares or both are so changed and the parties
                     hereto shall execute and deliver a supplemental agreement
                     giving effect to and evidencing such necessary amendments
                     and modifications.

                (e)  EXECUTION OF SUPPLEMENTAL AGREEMENTS.  No
                     amendment to or modification or waiver of any of the
                     provisions of this agreement otherwise permitted
                     hereunder shall be effective unless made in writing and
                     signed by all of the parties hereto. From time to time
                     Veritas (when authorized by a resolution of its Board of
                     Directors), Digicon (when authorized by a resolution of
                     its board of directors) and the Trustee may, subject to
                     the provisions of these presents, and they shall, when so
                     directed by these presents, execute and deliver by their
                     proper officers, agreements or other instruments
                     supplemental hereto, which thereafter shall form part
                     hereof, for any one or more of the following purposes:

                        (i) evidencing the succession of any Digicon
                            Successors to Digicon and the covenants of and
                            obligations assumed by each such Digicon Successors
                            in accordance with the provisions of Article 11 and
                            the successor of any successor trustee in
                            accordance with the provisions of Article 10;

                       (ii) making any additions to, deletions from or
                            alterations of the provisions of this agreement or
                            the Voting Rights, the Exchange Right or the
                            Automatic Exchange Rights which, in the opinion of
                            the Trustee and its counsel, will not be
                            prejudicial to the interests of the Holders as a
                            whole or are in the opinion of counsel to the
                            Trustee necessary or advisable in order to
                            incorporate, reflect or comply with any legislation
                            the provisions of which apply to Digicon, Veritas,
                            the Trustee or this agreement; and

                      (iii) for any other purposes not inconsistent with
                            the provisions of this agreement, including without
                            limitation to make or evidence any amendment or
                            modification to this agreement as contemplated
                            hereby, provided that, in the 


                                    -27-

<PAGE>   28

                            opinion of the Trustee and its counsel, the
                            rights of the Trustee and the Holders as a whole
                            will not be prejudiced thereby.

13.  TERMINATION

                (a)  TERM.  The Trust created by this
                     agreement shall continue until the earliest to occur of
                     the following events:

                        (i) no outstanding Exchangeable Shares are held by
                            a Holder;

                       (ii) each of Veritas and Digicon elects in writing
                            to terminate the Trust and such termination is
                            approved by the Holders of the Exchangeable Shares
                            in accordance with Section 9.2 of the Exchangeable
                            Share Provisions; and

                      (iii) 21 years after the death of the last survivor
                            of the descendants of His Majesty King George VI of
                            the United  Kingdom of Great Britain and Northern
                            Ireland living on the date of the creation of the
                            Trust.

                (b)  SURVIVAL OF AGREEMENT.  This agreement
                     shall survive any termination of the Trust and shall
                     continue until there are no Exchangeable Shares
                     outstanding held by a Holder; provided, however, that the
                     provisions of Articles 8 and 9 hereof shall survive any
                     such termination of this agreement.

14.  GENERAL

                (a)  SEVERABILITY.  If any provision of this
                     agreement is held to be invalid, illegal or unenforceable,
                     the validity, legality or enforceability of the remainder
                     of this agreement shall not in any way be affected or
                     impaired thereby and the agreement shall be carried out as
                     nearly as possible in accordance with its original terms
                     and conditions.

                (b)  INUREMENT.  This agreement shall be
                     binding upon and inure to the benefit of the parties
                     hereto and their respective successors and permitted
                     assigns and to the benefit of the Holders.

                (c)  NOTICES TO PARTIES.  All notices and
                     other communications between the parties hereunder shall
                     be in writing and shall be deemed to have been given if
                     delivered personally or by confirmed telecopy to the
                     parties at the following addresses (or at such other
                     address for such party as shall be specified in like
                     notice):

                (i) if to Digicon at:


                Digicon Inc.
                3701 Kirby Drive, Suite 112
                Houston, Texas 77098
                Attention: President
                Telecopy:(713) 526-5611



                                    -28-

<PAGE>   29

                (ii)        if to Veritas at:

                Veritas Energy Services Inc.
                Suite 300, 615 - Third Avenue S.W.
                Calgary, Alberta T2P 0G6
                Attention: President
                Telecopy:(403) 266-9359

                (iii)if to the Trustee at:

                if by mail or delivery:

                The R-M Trust Company
                600 The Dome Tower
                333 - 7th Avenue S.W.
                Calgary, Alberta  T2P 2Z1
                Attention:  _______________
                Telecopy: (403) 232-2400

                Any notice or other communication given personally shall be
                deemed to have been given and received upon delivery thereof
                and if given by telecopy shall be deemed to have been given and
                received on the date of receipt thereof unless such day is not
                a Business Day in which case it shall be deemed to have been
                given and received upon the immediately following Business Day.

                (d)  NOTICE OF HOLDERS.  Any and all notices
                     to be given and any documents to be sent to any Holders
                     may be given or sent to the address of such Holder shown
                     on the register of Holders of Exchangeable Shares in any
                     manner permitted by the Exchangeable Share Provisions and
                     shall be deemed to be received (if given or sent in such
                     manner) at the time specified in such Exchangeable Share
                     Provisions, the provisions of which the Exchangeable Share
                     Provisions shall apply mutatis mutandis to notices or
                     documents as aforesaid sent to such Holders.

                (e)  RISK OF PAYMENTS BY POST.  Whenever
                     payments are to be made or documents are to be sent to any
                     Holder by the Trustee, by Veritas or by Digicon or by such
                     Holder to the Trustee or to Digicon or Veritas, the making
                     of such payment or sending of such document sent through
                     the post shall be at the risk of Veritas or Digicon, in
                     the case of payments made or documents sent by the Trustee
                     or Veritas or Digicon, and the Holder, in the case of
                     payments made or documents sent by the Holder.

                (f)  COUNTERPARTS.  This agreement may be
                     executed in counterparts, each of which shall be deemed an
                     original, but all of which taken together shall constitute
                     one and the same instrument.


                                    -29-

<PAGE>   30

                (g)  JURISDICTION.  This agreement shall be
                     construed and enforced in accordance with the laws of the
                     Province of Alberta and the laws of Canada applicable
                     therein.

                (h)  ATTORNMENT.  Digicon agrees that any
                     action or proceeding arising out of or relating to this
                     agreement may be instituted in the courts of Alberta,
                     waives any objection which it may have now or hereafter to
                     the venue of any such action or proceeding, irrevocably
                     submits to the jurisdiction of the said courts in any such
                     action or proceeding, agrees to be bound by any judgment
                     of the said courts and agrees not to seek, and hereby
                     waives, any review of the merits of any such judgment by
                     the courts of any other jurisdiction and hereby appoints
                     Veritas at its registered office in the Province of
                     Alberta as Digicon's attorney for service of process.


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


                                        DIGICON INC.


                                        Per:  /s/ RICHARD W. McNAIRY
                                            ------------------------------
                                              Richard W. McNairy,
                                              Vice President and
                                              Chief Financial Officer
                                            

                                        VERITAS ENERGY SERVICES INC.


                                        Per: /s/ DAVID B. ROBSON
                                            ------------------------------

                                            ------------------------------


                                        THE R-M TRUST COMPANY

                                        Per: /s/ JOYCE WHITELAW 
                                            ------------------------------
                                            /s/ PATRICIA HODSON 
                                            ------------------------------



                                    -30-




<PAGE>   1

                                                                    EXHIBIT 10.1

                               SUPPORT AGREEMENT

              MEMORANDUM OF AGREEMENT made as of August 30, 1996.

B E T W E E N:

        DIGICON INC.,
        a corporation existing under the laws of the State of Delaware,
        (hereinafter referred to as "Digicon"),

                                                             OF THE FIRST PART,

                                    - and -
       
       VERITAS ENERGY SERVICES INC.
       a corporation existing under the laws of the Province of Alberta,
       (hereinafter referred to as "Veritas"),

                                                             OF THE SECOND PART.

     WHEREAS pursuant to a combination agreement dated as of May 10, 1996,
by and between Digicon and Veritas (such agreement as it may be amended or
restated is hereinafter referred to as the "Combination Agreement") the parties
agreed that on the Effective Date (as defined in the Combination Agreement),
Digicon and Veritas would execute and deliver a Support Agreement containing
the terms and conditions set forth in Exhibit D to the Combination Agreement 
together with such other terms and conditions as may be agreed to by the 
parties to the Combination Agreement acting reasonably;

     AND WHEREAS pursuant to an arrangement (the "Arrangement") effected by
Articles of Arrangement dated August 30, 1996 filed pursuant to the Business
Corporations Act (Alberta) each issued and outstanding common share of Veritas
(a "Veritas Common Share") was exchanged for 0.8 issued and outstanding
Exchangeable Shares of Veritas (the "Exchangeable Shares"), and thereafter,
Veritas' sole issued and outstanding Class A Preferred Share was exchanged by
the holder thereof for one issued and outstanding Veritas Common Share;

     AND WHEREAS the above-mentioned Articles of Arrangement set forth the
rights, privileges, restrictions and conditions (collectively the "Exchangeable
Share Provisions") attaching to the Exchangeable Shares;

     AND WHEREAS the parties hereto desire to make appropriate provision and to
establish a procedure whereby Digicon will take certain actions and make
certain payments and deliveries necessary to ensure that Veritas will be able
to make certain payments and to deliver or cause to be delivered shares of
Digicon Common Stock in satisfaction of the obligations of Veritas under the
Exchangeable Share Provisions with respect to the payment and satisfaction of 
dividends, Liquidation Amounts, Retraction Prices and Redemption Prices, all 
in accordance with the Exchangeable Share Provisions;



                                      1

<PAGE>   2

     NOW THEREFORE in consideration of the respective covenants and agreements
provided in this agreement and for other good and valuable consideration (the
receipt and sufficiency of which are hereby acknowledged), the parties agree as
follows:

1. DEFINITIONS AND INTERPRETATION

      (a)  DEFINED TERMS.  Each term denoted herein by initial capital
           letters and not otherwise defined herein shall have the meaning
           attributed thereto in the Exchangeable Share Provisions, unless the
           context requires otherwise.

      (b)  INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.  The division
           of this agreement into articles, sections and paragraphs and the
           insertion of headings are for convenience of reference only and
           shall not affect the construction or interpretation of this
           agreement.

      (c)  NUMBER, GENDER, ETC.  Words importing the singular number
           only shall include the plural and vice versa.  Words importing the
           use of any gender shall include all genders.

      (d)  DATE FOR ANY ACTION.  If any date on which any action is
           required to be taken under this agreement is not a Business Day,
           such action shall be required to be taken on the next succeeding
           Business Day.

2. COVENANTS OF DIGICON AND VERITAS

      (a)  COVENANTS OF DIGICON REGARDING EXCHANGEABLE SHARES.  So long
           as any Exchangeable Shares are outstanding, Digicon will:

                        (i) not declare or pay any dividend on Digicon
                            Common Stock unless (A) Veritas will have
                            sufficient assets, funds and other property
                            available to enable the due declaration and the due
                            and punctual payment in  accordance with applicable
                            law of an equivalent dividend on the  Exchangeable
                            Shares and (B) subsection 2(a)(ii) shall be
                            complied with in connection with such dividend;

                       (ii) cause Veritas to declare simultaneously with
                            the declaration of  any dividend on Digicon Common
                            Stock an equivalent dividend on the  Exchangeable
                            Shares and, when such dividend is paid on Digicon
                            Common  Stock, cause Veritas to pay simultaneously
                            therewith such equivalent dividend on the
                            Exchangeable Shares, in each case in accordance
                            with the  Exchangeable Share Provisions;

                      (iii) advise Veritas sufficiently in advance of the
                            declaration by Digicon of any dividend on Digicon
                            Common Stock and take all such other  actions as
                            are necessary, in cooperation with Veritas, to
                            ensure that  the respective declaration date,
                            record date and payment date for a dividend  on the
                            Exchangeable Shares shall be the same as the record
                            date, declaration  date and payment date for the
                            corresponding dividend on Digicon Common  Stock 




                                     -2-
<PAGE>   3

                            and such dividend on the Exchangeable Shares shall
                            correspond with any  requirement of the principal
                            stock exchange on which the Exchangeable Shares are
                            listed;

                       (iv) ensure that the record date for any dividend
                            declared on Digicon  Common Stock is not less than
                            10 Business Days after the declaration date  for
                            such dividend;

                        (v) take all such actions and do all such things as
                            are necessary or  desirable to enable and permit
                            Veritas, in accordance with applicable  law, to pay
                            and otherwise perform its obligations with respect
                            to the  satisfaction of the Liquidation Amount in
                            respect of each issued and  outstanding
                            Exchangeable Share upon the liquidation,
                            dissolution or  winding-up of Veritas, including
                            without limitation all such actions and all such
                            things as are  necessary or desirable to enable and
                            permit Veritas to cause to be  delivered shares of
                            Digicon Common Stock to the holders of Exchangeable
                            Shares in accordance with the provisions of
                            Article 5 of the Exchangeable  Share Provisions;

                       (vi) take all such actions and do all such things
                            as are necessary or  desirable to enable and permit
                            Veritas, in accordance with applicable  law, to pay
                            and otherwise perform its obligations with respect
                            to the  satisfaction of the Retraction Price and
                            the Redemption Price, including  without limitation
                            all such actions and all such things as are
                            necessary or  desirable to enable and permit
                            Veritas to cause to be delivered shares  of Digicon
                            Common Stock to the holders of Exchangeable Shares,
                            upon the  retraction or redemption of the
                            Exchangeable Shares in accordance with the
                            provisions of Article 6 or Article 7 of the
                            Exchangeable Share Provisions,  as the case may be;
                            and

                      (vii) not exercise its vote as a shareholder to
                            initiate the voluntary  liquidation, dissolution or
                            winding-up of Veritas nor take any action or  omit
                            to take any action that is designed to result in
                            the liquidation,  dissolution or winding-up of
                            Veritas.

      (b)  SEGREGATION OF FUNDS.  Digicon will cause Veritas to deposit
           a sufficient amount of funds in a separate account and segregate a
           sufficient amount of such assets and other property as is necessary
           to enable Veritas to pay or otherwise satisfy the applicable
           dividends, Liquidation Amount, Retraction Price or Redemption Price,
           in each case for the benefit of holders from time to time of the
           Exchangeable Shares, and Veritas will use such funds, assets and
           other property so segregated exclusively for the payment of
           dividends and the payment or other satisfaction of the Liquidation
           Amount, the Retraction Price or the Redemption Price, as applicable,
           net of any corresponding withholding tax obligations and for the
           remittance of such withholding tax obligations.

      (c)  RESERVATION OF SHARES OF DIGICON COMMON STOCK.  Digicon
           hereby represents, warrants and covenants that it has irrevocably
           reserved for issuance and will at all times keep available, free
           from pre-emptive and other rights, out of its 

                                      3

<PAGE>   4

           authorized and unissued capital stock such number of shares of
           Digicon Common Stock (or other shares or securities into which
           Digicon Common Stock may be reclassified or changed as contemplated
           by section 2(g) hereof) (i) as is equal to the sum of (A) the number
           of Exchangeable Shares issued and outstanding from time to time and
           (B) the number of Exchangeable Shares issuable upon the exercise of
           all rights to acquire Exchangeable Shares outstanding from time to
           time and (ii) as are now and may hereafter be required to enable and
           permit Veritas to meet its obligations hereunder, under the Voting
           and Exchange Trust Agreement, under the Exchangeable Share
           Provisions and under any other security or commitment pursuant to
           the Arrangement with respect to which Digicon may now or hereafter
           be required to issue shares of Digicon Common Stock.

      (d)  NOTIFICATION OF CERTAIN EVENTS.  In order to assist Digicon
           to comply with its obligations hereunder, Veritas will give Digicon
           notice of each of the following events at the time set forth below:

                        (i) in the event of any determination by the Board
                            of Directors of Veritas to institute voluntary
                            liquidation, dissolution or winding-up  proceedings
                            with respect to Veritas or to effect any other
                            distribution  of the assets of Veritas among its
                            shareholders for the purpose of  winding-up its
                            affairs, at least 60 days prior to the proposed
                            effective  date of such liquidation, dissolution,
                            winding-up or other distribution;

                       (ii) immediately, upon the earlier of (A) receipt
                            by Veritas of  notice of, and (B) Veritas otherwise
                            becoming aware of, any threatened  or instituted
                            claim, suit, petition or other proceedings with
                            respect to the involuntary  liquidation,
                            dissolution or winding-up of Veritas or to  effect
                            any other distribution of the assets of Veritas
                            among its  shareholders for the purpose of
                            winding-up its affairs;

                      (iii) immediately, upon receipt by Veritas of a
                            Retraction Request (as  defined in the Exchangeable
                            Share Provisions);

                       (iv) at least 130 days prior to any accelerated
                            Automatic Redemption Date  determined by the Board
                            of Directors of Veritas in accordance with the
                            Exchangeable Share Provisions; and

                        (v) as soon as practicable upon the issuance by
                            Veritas of any  Exchangeable Shares or rights to
                            acquire Exchangeable Shares.

      (e)  DELIVERY OF SHARES OF DIGICON COMMON STOCK.  In furtherance
           of its obligations hereunder, upon notice of any event which
           requires Veritas to cause to be delivered shares of Digicon Common
           Stock to any holder of Exchangeable Shares, Digicon shall forthwith
           issue and deliver the requisite shares of Digicon Common Stock to or
           to the order of the former holder of the surrendered Exchangeable
           Shares, as Veritas shall direct.  All such shares of Digicon Common
           Stock shall be duly issued 

                                      4

<PAGE>   5

           as fully paid and non-assessable and shall be free and clear of any
           lien, claim, encumbrance, security interest or adverse claim.

      (f)  QUALIFICATION OF SHARES OF DIGICON COMMON STOCK.  Digicon
           covenants that if any shares of Digicon Common Stock (or other
           shares or securities into which Digicon Common Stock may be
           reclassified or changed as contemplated by Section 2(g) hereof) to
           be issued and delivered hereunder, including for greater certainty,
           pursuant to the Exchangeable Share Provisions, or pursuant to the
           Exchange Right or the Automatic Exchange Rights (both as defined in
           the Voting and Exchange Trust Agreement) require registration or
           qualification with or approval of or the filing of any document
           including any prospectus or similar document or the taking of any
           proceeding with or the obtaining of any order, ruling or consent
           from any governmental or regulatory authority under any Canadian or
           United States federal, provincial or state law or regulation or
           pursuant to the rules and regulations of any regulatory authority or
           the fulfillment of any other legal requirement (collectively, the
           "Applicable Laws") before such shares (or other shares or securities
           into which Digicon Common Stock may be reclassified or changed as
           contemplated by Section 2(g) hereof) may be issued and delivered by
           Digicon to the initial holder thereof (other than    Veritas) or in
           order that such shares may be freely traded thereafter (other than
           any restrictions on transfer by reason of a holder being a "control
           person" of Digicon for purposes of Canadian federal or provincial
           securities law or an "affiliate" of Digicon for purposes of United
           States federal or state securities law), Digicon will in good faith
           expeditiously take all such actions and do all such things as are
           necessary to cause such shares of Digicon Common Stock (or other
           shares or securities into which Digicon Common Stock may be
           reclassified or changed as contemplated by Section 2(g) hereof) to
           be and remain duly registered, qualified or approved.  Digicon
           represents and warrants that it has in good faith taken all actions
           and done all things as are necessary under Applicable Laws as they
           exist on the date hereof to cause the shares of Digicon Common Stock
           (or other shares or securities into which Digicon Common Stock may
           be reclassified or changed as contemplated by Section 2(g) hereof)
           to be issued and delivered hereunder, including for greater
           certainty, pursuant to the Exchangeable Share Provisions, or
           pursuant to the Exchange Right and the Automatic Exchange Rights to
           be freely tradeable thereafter (other than restrictions on transfer
           by reason of a holder being a "control person" of Digicon for the
           purposes of Canadian federal and provincial securities law or an
           "affiliate" of Digicon for the purposes of United States federal or
           state securities law).  Digicon will in good faith expeditiously
           take all such actions and do all such things as are necessary to
           cause all shares of Digicon Common Stock (or other shares or
           securities into which Digicon Common Stock may be reclassified or
           changed as contemplated by Section 2(g) hereof) to be delivered
           hereunder, including for greater certainty, pursuant to the
           Exchangeable Share Provisions, or pursuant to the Exchange Right or
           the Automatic Exchange Rights to be listed, quoted or posted for
           trading on all stock exchanges and quotation systems on which such
           shares are listed, quoted or posted for trading at such time.
           Digicon will in good faith expeditiously take all such action and do
           all such things as are necessary to cause all Exchangeable Shares to
           be and to continue to be listed and posted for trading on a stock
           exchange in Canada.  Digicon will in good faith expeditiously take
           all such 

                                      5

<PAGE>   6

           action and do all such things as are necessary to cause all
           the shares of Digicon Common Stock to be and to continue to be
           listed and posted for trading on The Toronto Stock Exchange.

(g)        EQUIVALENCE.

           (i)  Digicon will not without the prior approval of
                Veritas and the prior approval of the holders of
                the Exchangeable Shares given in accordance with
                Section 9.2 of the Exchangeable Share Provisions:
          
                (A) issue or distribute shares of Digicon Common Stock  (or 
                    securities exchangeable for or convertible into or carrying
                    rights to acquire shares of  Digicon Common Stock) to
                    the holders of all or substantially all of the then 
                    outstanding Digicon Common Stock by way of stock dividend or
                    other distribution; or

                (B) issue or distribute rights, options or warrants to the 
                    holders of all or substantially all of the then     
                    outstanding shares of Digicon Common  Stock entitling them
                    to subscribe for or to purchase shares of Digicon Common 
                    Stock (or securities exchangeable for or convertible into or
                    carrying rights  to acquire shares of Digicon Common Stock);
                    or

                (C) issue or distribute to the holders of all or substantially 
                    all of  the then outstanding shares of Digicon Common
                    Stock (I) shares or securities  of Digicon of any class
                    other than Digicon Common Stock (other than shares 
                    convertible into or exchangeable for or carrying rights to
                    acquire shares of Digicon Common Stock), (II) rights,
                    options or warrants other than those  referred to in
                    subsection 2(g)(i)(A) above, (III) evidences of indebtedness
                    of Digicon or (IV) assets of Digicon;

           unless (D) Veritas is permitted under applicable law to issue or 
           distribute the equivalent on a per share basis of such rights,
           options, securities, shares, evidences of indebtedness or other
           assets to holders of the Exchangeable Shares and (E) Veritas shall
           issue or distribute such rights, options, securities, shares,
           evidences of indebtedness or other assets simultaneously to holders
           of the Exchangeable Shares.

           (ii) Digicon will not without the prior approval of Veritas and the 
                prior approval of the holders of the Exchangeable Shares given 
                in accordance with Section 9.2 of the Exchangeable Share 
                Provisions:

                (A) subdivide, redivide or change the then outstanding shares 
                    of Digicon Common Stock into a greater number of shares
                    of Digicon Common Stock; or

                (B) reduce, combine or consolidate or change the then 
                    outstanding shares of Digicon Common Stock into a lesser 
                    number of shares of Digicon Common Stock; or


                                      6

<PAGE>   7

                 (C) reclassify or otherwise change the shares of Digicon 
                     Common Stock or effect an amalgamation, merger, 
                     reorganization or other transaction affecting the shares 
                     of Digicon Common Stock;

           unless (I) Veritas is permitted under applicable law to      
           simultaneously make the same or an equivalent change to, or in the
           rights of holders of, the Exchangeable Shares and (II) the same or
           an equivalent change is made to, or in the rights of the holders of,
           the Exchangeable Shares.

           (iii) Digicon will ensure that the record date for any event 
                 referred to in section 2(g)(i) or 2(g)(ii) above, or (if no
                 record date is applicable for such event) the effective
                 date for any such event, is not less than 20 Business Days
                 after the date on which such event is declared or announced by
                 Digicon (with simultaneous notice thereof to be given by
                 Digicon to Veritas).

      (h)  TENDER OFFERS, ETC.  In the event that a tender offer, share
           exchange offer, issuer bid, take-over bid or similar transaction
           with respect to Digicon Common Stock (an "Offer") is proposed by
           Digicon or is proposed to Digicon or its shareholders and is
           recommended by the Board of Directors of Digicon, or is otherwise
           effected or to be effected with the consent or approval of the Board
           of Directors of Digicon, Digicon shall take all such actions and do
           all such things as are necessary or desirable to enable and permit
           holders of Exchangeable Shares to participate in such Offer to the
           same extent and on an equivalent basis as the holders of shares of
           Digicon Common Stock, without discrimination, including, without
           limiting the generality of the foregoing, Digicon will use its good
           faith efforts expeditiously to (and shall, in the case of a
           transaction proposed by Digicon or where Digicon is a participant in
           the negotiation thereof) ensure that holders of Exchangeable Shares
           may participate in all such Offers without being required to retract
           Exchangeable Shares as against Veritas (or, if so required, to
           ensure that any such retraction shall be effective only upon, and
           shall be conditional upon, the closing of the Offer and only to the
           extent necessary to tender or deposit to the Offer).

      (i)  OWNERSHIP OF OUTSTANDING SHARES.  Without the prior approval
           of Veritas and the prior approval of the holders of the Exchangeable
           Shares given in accordance with Section 9.2 of the Exchangeable
           Share Provisions, Digicon covenants and agrees in favour of Veritas
           that, as long as any outstanding Exchangeable Shares are owned by
           any person or entity other than Digicon or any of its Subsidiaries,
           Digicon will be and remain the direct or indirect beneficial
           owner of all issued and outstanding shares in the capital of Veritas
           and all outstanding securities of Veritas carrying or otherwise
           entitled to voting rights in any circumstances, in each case other
           than the Exchangeable Shares.

      (j)  DIGICON NOT TO VOTE EXCHANGEABLE SHARES.  Digicon covenants
           and agrees that it will appoint and cause to be appointed
           proxyholders with respect to all Exchangeable Shares held by Digicon
           and its Subsidiaries for the sole purpose of attending each meeting
           of holders of Exchangeable Shares in order to be counted as 

                                      7

<PAGE>   8

           part of the quorum for each such meeting.  Digicon further covenants
           and  agrees that it will not, and will cause its Subsidiaries not
           to, exercise any voting rights which may be exercisable by holders
           of Exchangeable Shares from time to time pursuant to the
           Exchangeable Share Provisions or pursuant to the provisions of the
           Business Corporations Act (Alberta) (or any successor or other
           corporate statute by which Veritas may in the future be governed)
           with respect to any Exchangeable Shares held by it or by its
           Subsidiaries in respect of any matter considered at any meeting of
           holders of Exchangeable Shares.

      (k)  DUE PERFORMANCE.  On and after the Effective Date, Digicon
           shall duly and timely perform all of its obligations provided for in
           the Plan of Arrangement, including any obligations that may arise
           upon the exercise of Digicon's rights under the Exchangeable Share
           Provisions.

      (l)  ELECTION OF DIGICON BOARD AND NOMINATING COMMITTEE. At or
           prior to the Effective Time (as defined in the Combination
           Agreement), (i) such number of directors of Digicon shall resign or
           be removed such that there shall be no more than six directors of
           Digicon ("Digicon Designees") serving in such a capacity, (ii) the
           size of the board of directors of Digicon shall be increased so that
           it shall initially consist of ten directors and (iii) a nominating
           committee (the "Nominating Committee") will be created.  At the
           Effective Time, four individuals designated by Veritas (the "Veritas
           Designees") shall be elected to the board of directors of Digicon.
           The Nominating Committee (i) shall consist initially of two outside
           directors who are Veritas Designees and two outside directors who
           are Digicon Designees, (ii) shall take action by the vote of a
           majority of its authorized number of members and (iii) shall
           nominate directors for election for not less than the two annual
           stockholder meetings of Digicon (or special meetings in lieu
           thereof) following the Closing (as defined in the Combination
           Agreement).  Any member of the Nominating Committee who ceases to be
           such a member (whether by reason of resignation from the Nominating
           Committee or death, disability, removal or resignation as a director
           or otherwise) shall be promptly replaced with a Digicon director
           designated by a majority of  the Veritas Designees or the Digicon
           Designees, as applicable.  Digicon shall put forth those
           individuals nominated by the Nominating Committee for election to
           its board of directors and will solicit proxies for its
           stockholder's meetings in favour of the election of each such
           individual.

3. GENERAL

      (a)  TERM.  This agreement shall come into force and be effective
           as of the date hereof and shall terminate and be of no further force
           and effect at such time as no Exchangeable Shares (or securities or
           rights convertible into or exchangeable for or carrying rights to
           acquire Exchangeable Shares) are held by any party other than
           Digicon and any of its Subsidiaries.

      (b)  CHANGES IN CAPITAL OF DIGICON AND VERITAS.  Notwithstanding
           the provisions of section 3(d) hereof, at all times after the
           occurrence of any event effected pursuant to section 2(g) or 2(h)
           hereof, as a result of which either Digicon 



                                      8

<PAGE>   9

           Common Stock or the  Exchangeable Shares or both are in any way
           changed, this agreement shall forthwith be amended and modified as
           necessary in order that it shall apply with full force and effect,
           mutatis mutandis, to all new securities into which Digicon Common
           Stock or the Exchangeable Shares or both are so changed and the
           parties hereto shall execute and deliver an agreement in writing
           giving effect to and evidencing such necessary amendments and
           modifications.

      (c)  SEVERABILITY.  If any provision of this agreement is held to
           be invalid, illegal or unenforceable, the validity, legality or
           enforceability of the remainder of this agreement shall not in any
           way be affected or impaired thereby and this agreement shall be
           carried out as nearly as possible in accordance with its original
           terms and conditions.

      (d)  AMENDMENTS, MODIFICATIONS, ETC.  This agreement may not be
           amended or modified except by an agreement in writing executed by
           Veritas and Digicon and approved by the holders of the Exchangeable
           Shares in accordance with Section 9.2 of the Exchangeable Share
           Provisions.

      (e)  MINISTERIAL AMENDMENTS.  Notwithstanding the provisions of
           section 3(d), the parties to this agreement may in writing, at any
           time and from time to time, without the approval of the holders of
           the Exchangeable Shares, amend or modify this agreement for the
           purposes of:

                        (i) adding to the covenants of either or both
                            parties for the protection  of the holders of the
                            Exchangeable Shares;

                       (ii) making such amendments or modifications not
                            inconsistent with this  agreement as may be
                            necessary or desirable with respect to matters or
                            questions which, in the opinion of the board of
                            directors of each of Veritas and Digicon, it may be
                            expedient to make, provided that each such  boards
                            of directors shall be of the opinion that such
                            amendments or  modifications will not be
                            prejudicial to the interests of the holders of the
                            Exchangeable Shares; or

                      (iii) making such changes or corrections which, on
                            the advice of counsel  to Veritas and Digicon, are
                            required for the purpose of curing or  correcting
                            any ambiguity or defect or inconsistent provision
                            or clerical  omission or mistake or manifest error,
                            provided that the boards of directors  of each of
                            Veritas and Digicon shall be of the opinion that
                            such  changes or corrections will not be
                            prejudicial to the interests of the  holders of the
                            Exchangeable Shares.

      (f)  MEETING TO CONSIDER AMENDMENTS.  Veritas, at the request of
           Digicon, shall call a meeting or meetings of the holders of the
           Exchangeable Shares for the purpose of considering any proposed
           amendment or modification requiring approval of such shareholders.
           Any such meeting or meetings shall be called and held in accordance
           with the by-laws of Veritas, the Exchangeable Share Provisions and
           all applicable laws.



                                      9

<PAGE>   10

      (g)  AMENDMENTS ONLY IN WRITING.  No amendment to or modification
           or waiver of any of the provisions of this agreement otherwise
           permitted hereunder shall be effective unless made in writing and
           signed by both of the parties hereto.

      (h)  INUREMENT.  This agreement shall be binding upon and inure to
           the benefit of the parties hereto and the holders, from time to
           time, of Exchangeable Shares and each of their respective heirs,
           successors and assigns.

      (i)  NOTICES TO PARTIES.  All notices and other communications
           between the parties shall be in writing and shall be deemed to have
           been given if delivered personally or by confirmed telecopy to the
           parties at the following addresses (or at such other address for
           either such party as shall be specified in like notice):

           (i) if to Digicon at:    Digicon Inc.
                                    3701 Kirby Drive, Suite 112
                                    Houston, Texas 77098
                                    Attention: President

           Telecopy:                (713) 526-5611

           (ii)  if to Veritas at:  Veritas Energy Services Inc.
                                    Suite 300, 615 - Third Avenue S.W.
                                    Calgary, Alberta T2P 0G6
                                    Attention: President
                                    Telecopy: (403) 266-9359

           Any notice or other communication given personally shall
           be deemed to have been given and received upon delivery
           thereof and if given by telecopy shall be deemed to have
           been given and received on the date of confirmed receipt
           thereof unless such day is not a Business Day in which
           case it shall be deemed to have been given and received
           upon the immediately following Business Day.
           
      (j)  COUNTERPARTS.  This agreement may be executed in
           counterparts, each of which shall be deemed an original, and all of
           which taken together shall constitute one and the same instrument.

      (k)  JURISDICTION.  This agreement shall be construed and enforced
           in accordance with the laws of the Province of Alberta and the laws
           of Canada applicable therein.

                                     10

<PAGE>   11


      (l)  ATTORNMENT.  Digicon agrees that any action or proceeding
           arising out of or relating to this agreement may be instituted in
           the courts of Alberta, waives any objection which it may have now or
           hereafter to the venue of any such action or proceeding, irrevocably
           submits to the jurisdiction of the said courts in any such action or
           proceeding, agrees to be bound by any judgment of the said courts
           and not to seek, and hereby waives, any review of the merits of any
           such judgment by the courts of any other jurisdiction and hereby
           appoints Veritas at its registered office in the Province of Alberta
           as Digicon's attorney for service of process.

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


DIGICON INC.                     VERITAS ENERGY SERVICES INC.


Per: /s/ RICHARD W. MCNAIRY      Per: /s/ DAVID B. ROBSON        
    -----------------------           ------------------------
     Richard W. McNairy 
     Vice President and          Per: 
     Chief Financial Officer          ------------------------




                                      11

<PAGE>   1
                                                                   EXHIBIT 20.1



                              JOINT PRESS RELEASE



VERITAS ENERGY SERVICES INC.                                       DIGICON INC.
CALGARY, ALBERTA, CANADA                                 HOUSTON, TEXAS, U.S.A.



August 30, 1996 - Veritas Energy Services Inc. and Digicon Inc. reported today
the closing of the previously announced merger of the two companies.  In
connection with the merger, Digicon will change its name to "Veritas DGC Inc."
and its common stock will trade on the New York Stock Exchange and The Toronto
Stock Exchange under the ticker symbol "VTS".

All Veritas Energy common shares have been converted to Veritas Energy
exchangeable shares which will trade on The Toronto Stock Exchange under the
symbol "VES" and which are exchangeable for Veritas DGC common stock.  The
voting equity of Veritas Energy is now held by Veritas DGC.

Veritas DGC Inc. is actively engaged in land, transition zone and marine-based
seismic data acquisition, seismic data processing, multi-client data sales, and
exploration and development information services in selected markets worldwide.



                                      -30-



For additional information, please contact:

Larry Fichtner                                                     Dick McNairy
Veritas Energy Services Inc.                                       Digicon Inc.
Suite 300, 615 Third Avenue S.W.                    Suite 112, 3701 Kirby Drive
Calgary, AB T2P 0G6                                           Houston, TX 77098
(403) 266-9350                                                   (713) 526-5611


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