ZITEL CORP
8-K, 1996-06-25
PATENT OWNERS & LESSORS
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                       SECURITIES EXCHANGE AND 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): June 12, 1996



                                ZITEL CORPORATION
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)


  California                                                    94-2566313
- --------------             -----------------------          --------------------
  (State of                (Commission File Number)            (IRS Employer
Incorporation)                                               Identification No.)


           47211 Bayside Parkway, Fremont, CA                  94538
           -----------------------------------------------------------
          (Address of principal executive offices)           (Zip Code)


                                 (510) 440-9600
              ----------------------------------------------------
              (Registrant's telephone number, including area code)



<PAGE>

Item 5.  Other Events.

         On June 12,  1996,  the Board of Directors  of Zitel  Corporation  (the
"Company") declared a dividend of one preferred share purchase right (a "Right")
for each  outstanding  share of common  stock,  without  par value (the  "Common
Shares"),  of the Company. The dividend is payable to the shareholders of record
on July 1, 1996 ("the "Record Date").  Each Right entitles the registered holder
to purchase  from the Company  one  one-hundredth  of a share of Series A Junior
Participating  Preferred Stock,  without par value (the "Preferred Stock"), at a
price of one hundred  thirty-nine  dollars  ($139.00) per one one-hundredth of a
Preferred  Share  (the  "Purchase  Price"),  subject  to  adjustment.  Each  one
one-hundredth  of a share of Preferred  Stock has  designations  and the powers,
preferences and rights,  and the  qualifications,  limitations and  restrictions
which make its value  approximately  equal to the value of a Common  Share.  The
description and terms of the Rights are set forth in a Rights Agreement dated as
of June 12, 1996 (the  "Rights  Agreement"),  between  the Company and  American
Stock Transfer & Trust Company, as Rights Agent (the "Rights Agent").

         Initially,  the  Rights  will be  evidenced  by the stock  certificates
representing  the  Common  Shares  then  outstanding,   and  no  separate  Right
Certificates, as defined below, will be distributed.  Until the earlier to occur
of (i) 10 days following a public announcement that a person, entity or group of
affiliated  or  associated  persons,  with certain  limited  exceptions  for the
Company's  existing  corporate  partners  (an  "Acquiring  Person") has acquired
beneficial  ownership of 15% or more of the outstanding Common Shares or (ii) 10
business days (or such later date as may be determined by action of the Board of
Directors  prior to such  time as any  person  or entity  becomes  an  Acquiring
Person)  following the commencement of, or announcement of an intention to make,
a tender offer or exchange offer the  consummation  of which would result in the
beneficial  ownership  by a person  or group of 15% or more of such  outstanding
Common Shares (the earlier of such dates being called the "Distribution  Date"),
the  Rights  will  be  evidenced,  with  respect  to  any of  the  Common  Share
certificates outstanding as of the Record Date, by such Common Share certificate
with or without a copy of the Summary of Rights, which is included in the Rights
Agreement as Exhibit C (the "Summary of Rights"), attached.

         The Rights Agreement  provides that,  until the Distribution  Date, the
Rights  will be  transferred  with and only with the  Common  Shares.  Until the
Distribution  Date (or earlier  redemption  or  expiration  of the Rights),  new
Common Share  certificates  issued after the Record Date,  upon  transfer or new
issuance of Common  Shares,  will  contain a notation  incorporating  the Rights
Agreement by reference.  Until the Distribution  Date (or earlier  redemption or
expiration  of the Rights),  the surrender or transfer of any  certificates  for
Common Shares outstanding as of the Record Date, even without such notation or a
copy of the Summary of Rights being attached  thereto,  will also constitute the
transfer of the Rights  associated  with the Common Shares  represented  by such
certificate.  As soon as practicable  following the Distribution Date,  separate
certificates  evidencing  the Rights  ("Right  Certificates")  will be mailed to
holders  of record of the  Common  Shares  as of the  close of  business  on the
Distribution Date and such separate Right  Certificates  alone will evidence the
Rights.

                                       1.

<PAGE>

         The Rights are not exercisable until the Distribution  Date. The Rights
will  expire on June 11, 2006 (the "Final  Expiration  Date"),  unless the Final
Expiration  Date is extended  or unless the Rights are  earlier  redeemed by the
Company as described below.

         The Purchase Price payable, and the number of Preferred Shares or other
securities  or  property  issuable,  upon  exercise of the Rights are subject to
adjustment  from time to time to  prevent  dilution  (i) in the event of a stock
dividend on, or a subdivision, combination or reclassification of, the Preferred
Shares, (ii) upon the grant to holders of the Preferred Shares of certain rights
or  warrants  to  subscribe  for or  purchase  Preferred  Shares at a price,  or
securities  convertible into Preferred Shares with a conversion price, less than
the  then  current  market  price of the  Preferred  Shares  or  (iii)  upon the
distribution to holders of the Preferred  Shares of evidences of indebtedness or
assets  (excluding  regular  periodic  cash  dividends  paid out of  earnings or
retained  earnings or dividends  payable in Preferred Shares) or of subscription
rights or warrants (other than those referred to above).  The exercise of Rights
for Preferred Shares is at all times subject to the availability of a sufficient
number of authorized but unissued Preferred Shares.

         The number of outstanding  Rights and the number of one  one-hundredths
of a Preferred  Share  issuable  upon exercise of each Right are also subject to
adjustment  in the  event  of a stock  split  of the  Common  Shares  or a stock
dividend  on the  Common  Shares  payable  in  Common  Shares  or  subdivisions,
consolidation or combinations of the Common Shares occurring, in any case, prior
to the Distribution Date.

         Preferred  Shares  purchasable  upon exercise of the Rights will not be
redeemable.  Each  Preferred  Share will be entitled  to a minimum  preferential
quarterly  dividend  payment  of $1.00  but  will be  entitled  to an  aggregate
dividend of 100 times the dividend  declared per Common  Share.  In the event of
liquidation,  the holders of the Preferred  Shares will be entitled to a minimum
preferential  liquidation  payment of $100 but will be entitled to an  aggregate
payment of 100 times the payment made per Common  Share.  Each  Preferred  Share
will have 100 votes,  voting  together with the Common Shares.  Finally,  in the
event of any merger,  consolidation or other  transaction in which Common Shares
are exchanged,  each  Preferred  Share will be entitled to receive 100 times the
amount of consideration received per Common Share. These rights are protected by
customary  anti-dilution  provisions.  Because  of the  nature of the  Preferred
Shares'  dividend and liquidation  rights,  the value of one  one-hundredth of a
Preferred Share should approximate the value of one Common Share.

         In the event  that any  person  becomes  an  Acquiring  Person,  proper
provision  shall be made so that  each  holder  of a Right,  other  than  Rights
beneficially owned by the Acquiring Person (which will thereafter be void), will
for a 60-day  period  have the right to receive  upon  exercise  that  number of
Common Shares having a market value of two times the exercise price of the Right
(or, if such number of shares is not and cannot be  authorized,  the Company may
issue Preferred Stock,  cash,  debt, stock or a combination  thereof in exchange
for the Rights).  This right will  terminate 60 days after the date on which the
Rights become nonredeemable (as described below),  unless there is an injunction
or similar  obstacle to  exercise of the Rights,  in which event this right will
terminate 60 days after the date on which the Rights again become exercisable.


                                       2.

<PAGE>

         In the event that the Company is acquired in a merger or other business
combination  transaction  or 50% or more of its  consolidated  assets or earning
power are sold,  proper  provision  will be made so that each  holder of a Right
will thereafter have the right to receive, upon the exercise thereof at the then
current  exercise  price of the Right,  that number of shares of common stock of
the acquiring  company which at the time of such  transaction will have a market
value of two times the exercise price of the Right.

         At any time after the acquisition by a person or group of affiliated or
associated  persons of  beneficial  ownership of 15% or more of the  outstanding
Common  Shares and prior to the  acquisition  by such  person or group of 50% or
more of the outstanding Common Shares, the Board of Directors of the Company may
exchange the Rights  (other than Rights owned by such person or group which have
become void),  in whole or in part, at an exchange ratio of one Common Share, or
one  one-hundredth  of a Preferred Share, per Right (or, if the number of shares
is not and cannot be authorized,  the Company may issue cash,  debt,  stock or a
combination thereof in exchange for the Rights), subject to adjustment.

         With certain  exceptions,  no adjustment in the Purchase  Price will be
required until  cumulative  adjustments  require an adjustment of at least 1% in
such Purchase Price. No fractional  Preferred  Shares will be issued (other than
fractions which are integral  multiples of the number of one one-hundredths of a
Preferred  Share  issuable  upon the  exercise  of one Right,  which may, at the
option  of the  Company,  be  evidenced  by  depositary  receipts),  and in lieu
thereof,  an  adjustment  in cash will be made based on the market  price of the
Preferred Shares on the last trading day prior to the date of exercise.

         At any time prior to the  earlier of (i) the close of  business  on the
day of the first  public  announcement  that a person  has  become an  Acquiring
Person or (ii) the Final  Expiration Date, the Board of Directors of the Company
may redeem the  Rights in whole,  but not in part,  at a price of $.01 per Right
(the  "Redemption  Price").  Following the expiration of the above periods,  the
Rights become nonredeemable.  Immediately upon any redemption of the Rights, the
right to exercise the Rights will terminate and the only right of the holders of
Rights will be to receive the Redemption Price.

         The terms of the Rights may be amended by the Board of Directors of the
Company without the consent of the holders of the Rights, including an amendment
to  lower  the  threshold  for  exercisability  of the  Rights  from  15% to any
percentage  which is (i) greater than the largest  percentage of the outstanding
Common Shares then known to the Company to be  beneficially  owned by any Person
(other than the Company,  any  Subsidiary of the Company,  any employee  benefit
plan of the  Company or any  Subsidiary,  or any entity  holding  Common  Shares
pursuant  to the terms of any such plan and (ii) not less than 10%,  except that
from and after  such time as any  person  becomes  an  Acquiring  Person no such
amendment may adversely affect the interest of the holders of the Rights.

         Until a Right is exercised,  the holder thereof,  as such, will have no
rights as a stockholder of the Company, including, without limitation, the right
to vote or to receive dividends.

                                       3.

<PAGE>

         The Rights have certain  anti-takeover  effects.  The Rights will cause
substantial  dilution to a person or group that  attempts to acquire the Company
on terms not approved by the Company's Board of Directors. The Rights should not
interfere with any merger or other business combination approved by the Board of
Directors  since the Rights  may be  redeemed  by the  Company at $.01 per Right
prior to the earliest of (i) the  twentieth day following the time that a person
or group has acquired  beneficial  ownership of 15% or more of the Common Shares
(unless extended for one or more 10 day periods by the Board of Directors), (ii)
a Change of Control, or (iii) the final expiration date of the rights.

Item 7.  Exhibits.

         1.   Rights  Agreement,  dated  as of  June  12,  1996,  between  Zitel
              Corporation  and  American  Stock  Transfer & Trust  Company, with
              exhibits.

         2.   Form of letter to be sent to Zitel Corporation shareholders, dated
              July ___, 1996.


                                       4.

<PAGE>




                                    SIGNATURE

         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.

                                                     ZITEL CORPORATION



Dated: June 20, 1996                                By:     /s/ Henry C. Harris
                                                             -------------------
                                                             Henry C. Harris
                                                             Secretary



<PAGE>


                                INDEX TO EXHIBITS



                                                                Page number in
                                                                sequentially
                                                                numbered version
                                                                ----------------

1.       Rights Agreement, dated as of
         June 12, 1996, between
         Zitel Corporation and
         American Stock Transfer & Trust Company,
         with exhibits.

2.       Form of letter to be sent to
         Zitel Corporation shareholders,
         dated July ___, 1996.



<PAGE>


                                ZITEL CORPORATION

                                       AND

                     AMERICAN STOCK TRANSFER & TRUST COMPANY
                                 AS RIGHTS AGENT


                                RIGHTS AGREEMENT


                            DATED AS OF JUNE 12, 1996


<PAGE>

<TABLE>
                                TABLE OF CONTENTS

<CAPTION>
                                                                                        PAGE

<S>          <C>                                                                          <C>
Section 1.   Certain Definitions.........................................................  1

Section 2.   Appointment of Rights Agent.................................................  4

Section 3.   Issue of Right Certificates.................................................  4

Section 4.   Form of Right Certificates..................................................  6

Section 5.   Countersignature and Registration...........................................  6

Section 6.   Transfer, Split Up, Combination and Exchange of Right Certificates;
             Mutilated, Destroyed, Lost or Stolen Right Certificates.....................  6

Section 7.   Exercise of Rights; Purchase Price; Expiration Date of Rights...............  7

Section 8.   Cancellation and Destruction of Right Certificates..........................  8

Section 9.   Availability of Preferred Shares............................................  9

Section 10.  Preferred Shares Record Date................................................  9

Section 11.  Adjustment of Purchase Price, Number of Shares or Number of Rights..........  9

Section 12.  Certificate of Adjusted Purchase Price or Number of Shares.................. 16

Section 13.  Consolidation, Merger or Sale or Transfer of Assets or Earning Power........ 16

Section 14.  Fractional Rights and Fractional Shares..................................... 19

Section 15.  Rights of Action............................................................ 20

Section 16.  Agreement of Right Holders.................................................. 20

Section 17.  Right Certificate Holder Not Deemed a Shareholder........................... 21

Section 18.  Concerning the Rights Agent................................................. 21

Section 19.  Merger or Consolidation or Change of Name of Rights Agent................... 21

Section 20.  Duties of Rights Agent...................................................... 22

Section 21.  Change of Rights Agent...................................................... 24
</TABLE>

                                       i.

<PAGE>

<TABLE>
<S>          <C>                                                                         <C>
Section 22.  Issuance of New Right Certificates.......................................... 25

Section 23.  Redemption.................................................................. 25

Section 24.  Exchange.................................................................... 26

Section 25.  Notice of Certain Events.................................................... 28

Section 26.  Notices..................................................................... 29

Section 27.  Supplements and Amendments.................................................. 29

Section 28.  Determination and Actions by the Board of Directors, etc.................... 30

Section 29.  Successors.................................................................. 30

Section 30.  Benefits of this Agreement.................................................. 30

Section 31.  Severability................................................................ 30

Section 32.  Governing Law............................................................... 30

Section 33.  Counterparts................................................................ 31

Section 34.  Descriptive Headings........................................................ 31



Exhibit A -  Certificate of Determination

Exhibit B -  Form of Right Certificate

Exhibit C -  Summary of Rights to Purchase Preferred Shares

</TABLE>


                                       ii.

<PAGE>

                                RIGHTS AGREEMENT


         AGREEMENT,  dated as of June 12,  1996  between  ZITEL  CORPORATION,  a
California  corporation  (the  "Company"),  and AMERICAN  STOCK TRANSFER & TRUST
COMPANY ("Rights Agent").

         The Board of  Directors  of the Company has  authorized  and declared a
dividend of one preferred share purchase right (a "Right") for each Common Share
(as hereinafter  defined) of the Company outstanding at the close of business on
July 1, 1996 (the "Record Date "), each Right representing the right to purchase
one one-hundredth of a Preferred Share (as hereinafter defined),  upon the terms
and subject to the conditions  herein set forth, and has further  authorized and
directed  the issuance of one Right with respect to each Common Share that shall
become outstanding  between the Record Date and the earliest of the Distribution
Date,  the  Redemption  Date and the Final  Expiration  Date (as such  terms are
hereinafter defined).

         Accordingly, in consideration of the premises and the mutual agreements
herein set forth, the parties hereby agree as follows:

         SECTION 1. CERTAIN  DEFINITIONS.  For purposes of this  Agreement,  the
following terms have the meanings indicated:

         (A)  "ACQUIRING  PERSON"  shall  mean  any  Person  (as  such  term  is
hereinafter  defined) who or which,  together with all Affiliates and Associates
(as such terms are hereinafter  defined) of such Person, shall be the Beneficial
Owner (as such term is hereinafter  defined) of 15% or more of the Common Shares
of the  Company  then  outstanding,  but  shall not  include  the  Company,  any
Subsidiary  (as such term is hereinafter  defined) of the Company,  any employee
benefit  plan of the Company or any  Subsidiary  of the  Company,  or any entity
holding  Common  Shares  for  or  pursuant  to  the  terms  of  any  such  plan.
Notwithstanding  the foregoing,  no Person shall become an "Acquiring Person" as
the result of an acquisition of Common Shares by the Company which,  by reducing
the number of shares outstanding,  increases the proportionate  number of shares
beneficially  owned by such  Person to 15% or more of the  Common  Shares of the
Company then outstanding;  provided,  however, that if a Person shall become the
Beneficial  Owner  of 15% or more  of the  Common  Shares  of the  Company  then
outstanding  by reason of share  purchases by the Company and shall,  after such
share  purchases by the Company,  become the Beneficial  Owner of any additional
Common  Shares  of the  Company,  then  such  Person  shall be  deemed  to be an
"Acquiring  Person."  Notwithstanding  the foregoing,  if the Incumbent Board of
Directors of the Company (as hereinafter  defined) determines in good faith that
a Person who would  otherwise be an "Acquiring  Person," as defined  pursuant to
the foregoing  provisions of this paragraph (a), has become such  inadvertently,
and such Person divests as promptly as practicable a sufficient number of Common
Shares so that such Person  would no longer be an Acquiring  Person,  as defined
pursuant to the  foregoing  provisions of this  paragraph  (a), then such Person
shall  not be  deemed  to be an  "Acquiring  Person"  for any  purposes  of this
Agreement.


                                       1.

<PAGE>

         (B)  "AFFILIATE"  and  "ASSOCIATE"  shall have the respective  meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations  under
the  Securities  Exchange Act of 1934, as amended (the  "Exchange  Act"),  as in
effect on the date of this Agreement.

         (C) A Person  shall be deemed  the  "BENEFICIAL  OWNER" of and shall be
deemed to "beneficially own" any securities:

                  (I)  which such  Person or any of such Person's  Affiliates or
         Associates beneficially owns, directly or indirectly;

                  (II) which such Person or any of such  Person's  Affiliates or
         Associates  has (A)  the  right  to  acquire  (whether  such  right  is
         exercisable  immediately or only after the passage of time) pursuant to
         any  agreement,  arrangement  or  understanding  (other than  customary
         agreements with and between underwriters and selling group members with
         respect to a bona fide  public  offering  of  securities),  or upon the
         exercise of  conversion  rights,  exchange  rights,  rights (other than
         these Rights),  warrants or options, or otherwise;  provided,  however,
         that a Person  shall  not be  deemed  the  Beneficial  Owner  of, or to
         beneficially own,  securities tendered pursuant to a tender or exchange
         offer  made by or on  behalf  of such  Person  or any of such  Person's
         Affiliates or Associates  until such tendered  securities  are accepted
         for  purchase  or  exchange;  or (B) the right to vote  pursuant to any
         agreement,  arrangement or  understanding;  provided,  however,  that a
         Person shall not be deemed the Beneficial  Owner of, or to beneficially
         own, any security if the  agreement,  arrangement or  understanding  to
         vote such security (1) arises solely from a revocable  proxy or consent
         given  to  such  Person  in  response  to a  public  proxy  or  consent
         solicitation  made pursuant to, and in accordance  with, the applicable
         rules and regulations promulgated under the Exchange Act and (2) is not
         also then  reportable  on Schedule  13D under the  Exchange Act (or any
         comparable or successor report); or

                  (III) which are beneficially owned, directly or indirectly, by
         any  other  Person  with  which  such  Person  or any of such  Person's
         Affiliates   or   Associates   has  any   agreement,   arrangement   or
         understanding   (other  than  customary  agreements  with  and  between
         underwriters  and selling  group  members  with  respect to a bona fide
         public offering of securities)  for the purpose of acquiring,  holding,
         voting  (except to the extent  contemplated  by the  proviso to Section
         1(c)(ii)(B)) or disposing of any securities of the Company.

Notwithstanding  anything in this  definition  of  Beneficial  Ownership  to the
contrary, the phrase, "then outstanding," when used with reference to a Person's
Beneficial Ownership of securities of the Company, shall mean the number of such
securities  then  issued  and  outstanding  together  with  the  number  of such
securities not then actually issued and  outstanding  which such Person would be
deemed to own beneficially hereunder.

         (D) "BUSINESS DAY" shall mean any day other than a Saturday,  a Sunday,
or a day on which banking  institutions in the States of California and New York
are authorized or obligated by law or executive order to close.


                                       2.

<PAGE>

         (E)      "CHANGE OF CONTROL" shall mean:

                  (I) The  acquisition  (other  than  from the  Company)  by any
         person,  entity or "group,"  within the meaning of Section  13(d)(3) or
         14(d)(2) of the Exchange Act, (excluding, for this purpose, the Company
         or its subsidiaries, or any employee benefit plan of the Company or its
         subsidiaries which acquires  beneficial  ownership of voting securities
         of the Company) of  beneficial  ownership,  (within the meaning of Rule
         13d-3  promulgated under the Exchange Act) of 50% or more of either the
         then  outstanding  Common  Shares or the  combined  voting power of the
         Company's then outstanding voting securities entitled to vote generally
         in the election of directors; or

                  (II)  Individuals  who, as of the date hereof,  constitute the
         Board  (as of the date  hereof  the  "Incumbent  Board")  cease for any
         reason to  constitute  at least a majority of the Board,  provided that
         any person  becoming a director  subsequent  to the date  hereof  whose
         election, or nomination for election by the Company's shareholders, was
         approved  by a vote  of at  least  a  majority  of the  directors  then
         comprising the Incumbent Board (other than an Affiliate or Associate of
         an  Acquiring  Person)  shall  be,  for  purposes  of  this  Agreement,
         considered as though such person were a member of the Incumbent  Board;
         or

                  (III)  Approval  by  the  shareholders  of  the  Company  of a
         reorganization, merger, or consolidation, in each case, with respect to
         which  persons who were the  shareholders  of the  Company  immediately
         prior  to  such   reorganization,   merger  or   consolidation  do  not
         immediately thereafter,  own more than 50% of the combined voting power
         entitled  to  vote  generally  in  the  election  of  directors  of the
         reorganized,  merged or consolidated  company's then outstanding voting
         securities,  or a liquidation  or  dissolution of the Company or of the
         sale of all or substantially all of the assets of the Company.

         (F) "CLOSE OF BUSINESS" on any given date shall mean 5:00 p.m., Eastern
Standard  time,  on such  date;  provided,  however,  that if such date is not a
Business  Day it shall  mean  5:00  p.m.,  Eastern  Standard  time,  on the next
succeeding Business Day.

         (G) "COMMON  SHARES" when used with reference to the Company shall mean
the shares of common stock,  without par value, of the Company.  "Common Shares"
when used with  reference  to any Person  other than the Company  shall mean the
capital stock (or equity  interest) with the greatest voting power of such other
Person or, if such other Person is a Subsidiary of another Person, the Person or
Persons which ultimately control such first-mentioned Person.

         (H)  "DISTRIBUTION  DATE" shall have the meaning set forth in Section 3
hereof.

         (I) "FINAL EXPIRATION DATE" shall have the meaning set forth in Section
7 hereof.

         (J) "PERSON"  shall mean any  individual,  firm,  corporation  or other
entity, and shall include any successor (by merger or otherwise) of such entity.


                                       3.

<PAGE>

         (K)   "PREFERRED   SHARES"   shall  mean  shares  of  Series  A  Junior
Participating  Preferred  Stock,  without par value,  of the Company  having the
rights,  privileges  and  preferences  set forth in the form of  Certificate  of
Determination attached to this Agreement as Exhibit A.

         (L)  "REDEMPTION  DATE"  shall have the  meaning set forth in Section 7
hereof.

         (M)  "SHARES  ACQUISITION  DATE"  shall  mean the first  date of public
announcement by the Company or an Acquiring  Person that an Acquiring Person has
become such.

         (N)  "SUBSIDIARY"  of any Person  shall mean any  corporation  or other
entity of which a majority of the voting power of the voting  equity  securities
or equity interest is owned, directly or indirectly, by such Person.

         SECTION 2. APPOINTMENT OF RIGHTS AGENT. The Company hereby appoints the
Rights Agent to act as agent for the Company and the holders of the Rights (who,
in accordance with Section 3 hereof,  shall prior to the Distribution  Date also
be the holders of the Common Shares) in accordance with the terms and conditions
hereof,  and the Rights Agent hereby accepts such  appointment.  The Company may
from time to time  appoint  such  co-Rights  Agents as it may deem  necessary or
desirable.

         SECTION 3.  ISSUE OF RIGHT CERTIFICATES.

         (A) Until the earlier of (i) the tenth day after the Shares Acquisition
Date or (ii) the tenth  business day (or such later date as may be determined by
action of the Board of  Directors  prior to such time as any  Person  becomes an
Acquiring  Person) after the date of the commencement  (determined in accordance
with Rule 14d-2 under the Exchange  Act) by any Person  (other than the Company,
any  Subsidiary of the Company,  any employee  benefit plan of the Company or of
any  Subsidiary  of the  Company  or any  entity  holding  Common  Shares for or
pursuant to the terms of any such plan) of, or of the first public  announcement
of the  intention of any Person (other than the Company,  any  Subsidiary of the
Company,  any employee  benefit plan of the Company or of any  Subsidiary of the
Company or any entity  holding Common Shares for or pursuant to the terms of any
such plan) to commence,  a tender or exchange offer,  the  consummation of which
would  result in any  Person  becoming  the  Beneficial  Owner of Common  Shares
aggregating  15% or more of the then  outstanding  Common Shares  (including any
such date which is after the date of this Agreement and prior to the issuance of
the  Rights,  the  earlier  of  such  dates  being  herein  referred  to as  the
"Distribution  Date"),  (x) the Rights will be evidenced by the certificates for
Common Shares registered in the names of the holders thereof (which certificates
shall  also be  deemed  to be  Right  Certificates)  and not by  separate  Right
Certificates,  and (y) the Rights (and the right to receive  Right  Certificates
therefor) will be  transferable  only in connection  with the transfer of Common
Shares.  As soon as practicable  after the  Distribution  Date, the Company will
prepare and  execute,  the Rights Agent will  countersign,  and the Company will
send or cause to be sent (and the Rights  Agent  will,  if  requested,  send) by
first-class,  insured,  postage-prepaid  mail,  to each record  holder of Common
Shares as of the close of business on the  Distribution  Date, at the address of
such  holder  shown on the  records  of the  Company,  a Right  Certificate,  in
substantially the form of Exhibit B hereto (a "Right  Certificate"),  evidencing
one Right for each Common Share so held. As of the Distribution Date, the Rights
will be evidenced solely by such Right Certificates.


                                       4.

<PAGE>

         (B) On the  Record  Date,  or as soon as  practicable  thereafter,  the
Company will send a copy of a Summary of Rights to Purchase Preferred Shares, in
substantially  the form of  Exhibit  C hereto  (the  "Summary  of  Rights"),  by
first-class,  postage-prepaid mail, to each record holder of Common Shares as of
the close of business on the Record Date, at the address of such holder shown on
the records of the  Company.  With  respect to  certificates  for Common  Shares
outstanding as of the Record Date, until the Distribution  Date, the Rights will
be  evidenced  by such  certificates  registered  in the  names  of the  holders
thereof.  Until the Distribution Date (or the earlier of the Redemption Date and
the Final  Expiration  Date),  the surrender for transfer of any certificate for
Common Shares  outstanding on the Record Date shall also constitute the transfer
of the Rights associated with the Common Shares represented thereby.

         (C) Certificates for Common Shares which become outstanding (including,
without limitation, reacquired Common Shares referred to in the last sentence of
this  paragraph  (c)) after the  Record  Date but prior to the  earliest  of the
Distribution  Date, the Redemption Date or the Final  Expiration Date shall have
impressed on, printed on, written on or otherwise  affixed to them the following
legend:

                  This certificate also evidences and entitles the holder hereof
                  to certain rights as set forth in a Rights  Agreement  between
                  Zitel  Corporation and American Stock Transfer & Trust Company
                  dated as of June 12,  1996,  as amended from time to time (the
                  "Rights   Agreement"),   the   terms  of  which   are   hereby
                  incorporated  herein  by  reference  and a copy of which is on
                  file at the principal  executive offices of Zitel Corporation.
                  Under  certain  circumstances,  as set  forth  in  the  Rights
                  Agreement,   such  Rights  will  be   evidenced   by  separate
                  certificates   and  will  no  longer  be   evidenced  by  this
                  certificate. Zitel Corporation will mail to the holder of this
                  certificate  a copy of the  Rights  Agreement  without  charge
                  after receipt of a written request  therefor.  As described in
                  the Rights Agreement,  Rights issued to any Person who becomes
                  an Acquiring Person (as defined in the Rights Agreement) shall
                  become null and void.

With respect to such  certificates  containing the foregoing  legend,  until the
Distribution  Date, the Rights associated with the Common Shares  represented by
such  certificates  shall  be  evidenced  by such  certificates  alone,  and the
surrender  for  transfer  of any such  certificate  shall  also  constitute  the
transfer of the Rights associated with the Common Shares represented thereby. In
the event that the Company  purchases  or acquires  any Common  Shares after the
Record Date but prior to the Distribution  Date, any Rights associated with such
Common Shares shall be deemed canceled and retired so that the Company shall not
be entitled to exercise any Rights  associated  with the Common Shares which are
no longer outstanding.

         SECTION 4. FORM OF RIGHT CERTIFICATES.  The Right Certificates (and the
form of election to purchase  Preferred  Shares,  the form of assignment and the
form  of   certification  to  be  printed  on  the  reverse  thereof)  shall  be
substantially  the  same  as  Exhibit  B  hereto  and may  have  such  marks  of
identification  or  designation  and such  legends,  summaries  or  endorsements
printed thereon as the Company may deem  appropriate and as are not inconsistent
with the provisions of this Agreement,  or as may be required to comply with any
applicable law or with


                                       5.

<PAGE>

any rule or regulation  made pursuant  thereto or with any rule or regulation of
any stock  exchange  on which the Rights may from time to time be listed,  or to
conform to usage.  Subject  to the  provisions  of Section 22 hereof,  the Right
Certificates  shall  entitle the holders  thereof to purchase such number of one
one-hundredths  of a Preferred  Share as shall be set forth therein at the price
per one  one-hundredth  of a Preferred  Share set forth  therein (the  "Purchase
Price"),  but the number of such one one-hundredths of a Preferred Share and the
Purchase Price shall be subject to adjustment as provided herein.

         SECTION 5.  COUNTERSIGNATURE  AND REGISTRATION.  The Right Certificates
shall be  executed on behalf of the  Company by its  Chairman of the Board,  its
Chief  Executive  Officer,  its President,  its Vice Chairman of the Board,  its
Chief Financial  Officer,  or any of its Vice Presidents,  either manually or by
facsimile  signature,  shall  have  affixed  thereto  the  Company's  seal  or a
facsimile  thereof,  and shall be  attested  by the  Secretary  or an  Assistant
Secretary of the Company,  either manually or by facsimile signature.  The Right
Certificates  shall be manually  countersigned by the Rights Agent and shall not
be valid  for any  purpose  unless  countersigned.  In case any  officer  of the
Company  who shall have signed any of the Right  Certificates  shall cease to be
such  officer of the Company  before  countersignature  by the Rights  Agent and
issuance and delivery by the Company, such Right Certificates, nevertheless, may
be  countersigned  by the Rights  Agent and issued and  delivered by the Company
with the same  force and  effect as though  the  person  who  signed  such Right
Certificates  had not ceased to be such  officer of the  Company;  and any Right
Certificate  may be signed on behalf of the  Company by any person  who,  at the
actual  date of the  execution  of such  Right  Certificate,  shall  be a proper
officer of the Company to sign such Right  Certificate,  although at the date of
the execution of this Rights Agreement any such person was not such an officer.

         Following the Distribution Date, the Rights Agent will keep or cause to
be kept, at its office  designated for such purpose,  books for registration and
transfer of the Right Certificates  issued hereunder.  Such books shall show the
names and addresses of the  respective  holders of the Right  Certificates,  the
number of Rights evidenced on its face by each of the Right Certificates and the
date of each of the Right Certificates.

         SECTION  6.  TRANSFER,  SPLIT UP,  COMBINATION  AND  EXCHANGE  OF RIGHT
CERTIFICATES;  MUTILATED, DESTROYED, LOST OR STOLEN RIGHT CERTIFICATES.  Subject
to the provisions of Section 14 hereof,  at any time after the close of business
on the  Distribution  Date,  and at or prior to the  close  of  business  on the
earlier  of the  Redemption  Date  or  the  Final  Expiration  Date,  any  Right
Certificate or Right Certificates  (other than Right  Certificates  representing
Rights that have become void pursuant to Section  11(a)(ii)  hereof or that have
been  exchanged  pursuant  to Section 24 hereof) may be  transferred,  split up,
combined or  exchanged  for another  Right  Certificate  or Right  Certificates,
entitling the registered holder to purchase a like number of one  one-hundredths
of a Preferred Share as the Right Certificate or Right Certificates  surrendered
then  entitled  such  holder to  purchase.  Any  registered  holder  desiring to
transfer,  split  up,  combine  or  exchange  any  Right  Certificate  or  Right
Certificates  shall make such request in writing  delivered to the Rights Agent,
and  shall  surrender  the  Right  Certificate  or  Right   Certificates  to  be
transferred,  split up,  combined or exchanged at the office of the Rights Agent
designated for such purpose.  Thereupon the Rights Agent shall  countersign  and
deliver  to  the  person   entitled   thereto  a  Right   Certificate  or  Right
Certificates,  as the case may be, as so  requested.  The  Company  may  require
payment of a sum sufficient to cover any tax or


                                       6.

<PAGE>

governmental  charge that may be imposed in connection with any transfer,  split
up, combination or exchange of Right Certificates.

         Upon receipt by the Company and the Rights Agent of evidence reasonably
satisfactory  to them of the loss,  theft,  destruction or mutilation of a Right
Certificate,  and,  in case of  loss,  theft or  destruction,  of  indemnity  or
security  reasonably  satisfactory  to  them,  and,  at the  Company's  request,
reimbursement  to the Company and the Rights  Agent of all  reasonable  expenses
incidental  thereto,  and upon surrender to the Rights Agent and cancellation of
the Right Certificate if mutilated,  the Company will issue, execute and deliver
a new Right  Certificate of like tenor to the Rights Agent for  countersignature
and delivery to the registered  holder in lieu of the Right Certificate so lost,
stolen, destroyed or mutilated.

         SECTION 7.  EXERCISE  OF RIGHTS;  PURCHASE  PRICE;  EXPIRATION  DATE OF
RIGHTS.

         (A) The  registered  holder of any Right  Certificate  may exercise the
Rights  evidenced  thereby (except as otherwise  provided herein) in whole or in
part at any time  after  the  Distribution  Date  upon  surrender  of the  Right
Certificate,  with the form of election to purchase on the reverse  side thereof
duly executed,  to the Rights Agent at the office of the Rights Agent designated
for such  purpose,  together  with  payment of the  Purchase  Price for each one
one-hundredth  of a  Preferred  Share (or such  other  number of shares or other
securities) as to which the Rights are exercised, at or prior to the earliest of
(i) the close of business on June 11, 2006 (the "Final Expiration  Date"),  (ii)
the time at which the Rights are  redeemed as provided in Section 23 hereof (the
"Redemption  Date"),  or (iii) the time at which such  Rights are  exchanged  as
provided in Section 24 hereof.

         (B) The Purchase Price for each one  one-hundredth of a Preferred Share
pursuant to the exercise of a Right shall  initially be one hundred  thirty-nine
dollars ($139.00),  shall be subject to adjustment from time to time as provided
in Sections 11 and 13 hereof and shall be payable in lawful  money of the United
States of America in accordance with paragraph (c) below.

         (C)  Upon  receipt  of a  Right  Certificate  representing  exercisable
Rights,  with the form of election to purchase  duly  executed,  accompanied  by
payment of the Purchase Price for the shares to be purchased and an amount equal
to any  applicable  transfer tax required to be paid by the holder of such Right
Certificate in accordance  with Section 9 hereof by certified  check,  cashier's
check, bank draft or money order payable to the order of the Company, the Rights
Agent shall thereupon  promptly (i) (A) requisition  from any transfer agent for
the  Preferred  Shares  certificates  for the number of  Preferred  Shares to be
purchased and the Company  hereby  irrevocably  authorizes its transfer agent to
comply with all such requests,  or (B)  requisition  from the  depositary  agent
depositary  receipts  representing  such  number  of  one  one-hundredths  of  a
Preferred  Share as are to be  purchased  (in which  case  certificates  for the
Preferred Shares represented by such receipts shall be deposited by the transfer
agent with the  depositary  agent) and the Company hereby directs the depositary
agent to comply with such request,  (ii) when appropriate,  requisition from the
Company the amount of cash to be paid in lieu of issuance of  fractional  shares
in accordance with Section 14 hereof,  (iii) after receipt of such  certificates
or depositary  receipts,  cause the same to be delivered to or upon the order of
the  registered  holder of such Right  Certificate,  registered  in such name or
names as may be designated by such holder


                                       7.

<PAGE>

and (iv) when appropriate, after receipt, deliver such cash to or upon the order
of the registered holder of such Right Certificate.

         (D) In case  the  registered  holder  of any  Right  Certificate  shall
exercise fewer than all the Rights evidenced  thereby,  a new Right  Certificate
evidencing Rights equivalent to the Rights remaining unexercised shall be issued
by the Rights Agent to the registered holder of such Right Certificate or to his
duly authorized assigns, subject to the provisions of Section 14 hereof.

         (E) The Company  covenants and agrees that it will cause to be reserved
and kept available out of its authorized  and unissued  Preferred  Shares or any
Preferred Shares held in its treasury,  the number of Preferred Shares that will
be  sufficient  to permit  the  exercise  in full of all  outstanding  Rights in
accordance with this Section 7.

         (F) Notwithstanding anything in this Agreement to the contrary, neither
the Rights Agent nor the Company shall be obligated to undertake any action with
respect to a registered holder upon the occurrence of any purported  exercise as
set  forth in this  Section  7 unless  such  registered  holder  shall  have (i)
completed  and  signed  the  certification  following  the form of  election  to
purchase set forth on the reverse side of the Rights Certificate surrendered for
such exercise and (ii) provided such additional  evidence of the identity of the
Beneficial  Owner (or  former  Beneficial  Owner) or  Affiliates  or  Associates
thereof as the Company shall reasonably request.

         SECTION 8.  CANCELLATION  AND  DESTRUCTION OF RIGHT  CERTIFICATES.  All
Right Certificates surrendered for the purpose of exercise,  transfer, split up,
combination  or exchange  shall,  if surrendered to the Company or to any of its
agents,  be delivered to the Rights Agent for  cancellation or in canceled form,
or, if delivered or  surrendered  to the Rights Agent,  shall be canceled by it,
and no Right  Certificates  shall be issued in lieu thereof  except as expressly
permitted by any of the provisions of this Rights  Agreement.  The Company shall
deliver to the Rights  Agent for  cancellation  and  retirement,  and the Rights
Agent  shall so cancel and  retire,  any other Right  Certificate  purchased  or
acquired by the Company  otherwise  than upon the exercise  thereof.  The Rights
Agent shall deliver all canceled Right Certificates to the Company, or shall, at
the written  request of the Company,  destroy such canceled Right  Certificates,
and in such case  shall  deliver a  certificate  of  destruction  thereof to the
Company.

         SECTION 9. AVAILABILITY OF PREFERRED SHARES.  The Company covenants and
agrees that it will take all such action as may be  necessary to ensure that all
Preferred  Shares  delivered  upon  exercise  of  Rights  shall,  at the time of
delivery of the  certificates  for such Preferred  Shares (subject to payment of
the Purchase  Price),  be duly and validly  authorized and issued and fully paid
and nonassessable shares.

         The Company further  covenants and agrees that it will pay when due and
payable any and all federal and state  transfer  taxes and charges  which may be
payable in respect of the issuance or delivery of the Right  Certificates  or of
any  Preferred  Shares  upon the  exercise  of Rights.  The  Company  shall not,
however,  be required to pay any transfer tax which may be payable in respect of
any transfer or delivery of Right  Certificates  to a person other than,  or the
issuance or delivery of  certificates  or depositary  receipts for the Preferred
Shares  in a name  other  than  that of,  the  registered  holder  of the  Right
Certificate evidencing Rights surrendered


                                       8.

<PAGE>

for exercise or to issue or to deliver any  certificates or depositary  receipts
for  Preferred  Shares upon the  exercise of any Rights until any such tax shall
have  been  paid  (any  such tax  being  payable  by the  holder  of such  Right
Certificate  at the time of surrender) or until it has been  established  to the
Company's reasonable satisfaction that no such tax is due.

         SECTION 10. PREFERRED SHARES RECORD DATE. Each person in whose name any
certificate for Preferred Shares or other securities is issued upon the exercise
of Rights  shall for all  purposes be deemed to have become the holder of record
of the Preferred  Shares or other  securities  represented  thereby on, and such
certificate shall be dated, the date upon which the Right Certificate evidencing
such Rights was duly  surrendered  with the forms of election and  certification
duly  executed and payment of the Purchase  Price (and any  applicable  transfer
taxes)  was made;  provided,  however,  that if the date of such  surrender  and
payment is a date upon which the Preferred Shares or other  securities  transfer
books of the Company are closed,  such person shall be deemed to have become the
record holder of such shares on, and such  certificate  shall be dated, the next
succeeding  Business  Day on which  the  Preferred  Shares  or other  securities
transfer  books of the  Company  are open.  Prior to the  exercise of the Rights
evidenced  thereby,  the holder of a Right  Certificate,  as such,  shall not be
entitled  to any  rights of a holder of  Preferred  Shares  for which the Rights
shall be  exercisable,  including,  without  limitation,  the right to vote,  to
receive dividends or other  distributions or to exercise any preemptive  rights,
and shall not be  entitled  to  receive  any  notice of any  proceedings  of the
Company, except as provided herein.

         SECTION 11. ADJUSTMENT OF PURCHASE PRICE, NUMBER OF SHARES OR NUMBER OF
RIGHTS. The Purchase Price, the number of Preferred Shares covered by each Right
and the number of Rights outstanding are subject to adjustment from time to time
as provided in this Section 11.

         (A) (I) In the event the  Company  shall at any time  after the date of
this  Agreement  (A)  declare a  dividend  on the  Preferred  Shares  payable in
Preferred Shares,  (B) subdivide the outstanding  Preferred Shares,  (C) combine
the outstanding  Preferred  Shares into a smaller number of Preferred  Shares or
(D) issue any shares of its capital stock in a reclassification of the Preferred
Shares (including any such  reclassification  in connection with a consolidation
or merger in which the  Company is the  continuing  or  surviving  corporation),
except as otherwise provided in this Section 11(a), the Purchase Price in effect
at the time of the record  date for such  dividend or of the  effective  date of
such subdivision,  combination or  reclassification,  and the number and kind of
shares of capital stock issuable on such date, shall be proportionately adjusted
so that the holder of any Right  exercised  after such time shall be entitled to
receive the aggregate  number and kind of shares of capital stock which, if such
Right had been exercised  immediately  prior to such date and at a time when the
Preferred Shares transfer books of the Company were open, such holder would have
owned  upon  such  exercise  and been  entitled  to  receive  by  virtue of such
dividend, subdivision, combination or reclassification;  provided, however, that
in no event shall the consideration to be paid upon the exercise of one Right be
less than the  aggregate par value of the shares of capital stock of the Company
issuable upon  exercise of one Right.  If an event occurs which would require an
adjustment  under both Section  11(a)(i) and Section  11(a)(ii),  the adjustment
provided for in this Section 11(a)(i) shall be in addition to, and shall be made
prior to any adjustment required pursuant to Section 11(a)(ii).


                                       9.

<PAGE>

         (II) Subject to Section 24 of this  Agreement,  in the event any Person
shall become an Acquiring Person,  each holder of a Right shall, for a period of
60 days after the expiration or  termination of the redemption  option set forth
in Section  23(b)  (provided  that,  if at any time prior to the  expiration  or
termination  of the Rights  there  shall be a  temporary  restraining  order,  a
preliminary injunction,  an injunction,  or temporary suspension by the Board of
Directors,  or similar  obstacle to  exercise  of the Rights (the  "Injunction")
which prevents exercise of the Rights, a new 60-day period shall commence on the
date the Injunction is removed),  have a right to receive, upon exercise thereof
at a price equal to the then current  Purchase Price multiplied by the number of
one  one-hundredths  of a Preferred Share for which a Right is then exercisable,
in accordance with the terms of this Agreement and in lieu of Preferred  Shares,
such number of Common  Shares of the Company as shall equal the result  obtained
by (A)  multiplying  the  then  current  Purchase  Price  by the  number  of one
one-hundredths  of a Preferred  Share for which a Right is then  exercisable and
dividing  that  product by (B) 50% of the then current per share market price of
the Company's Common Shares (determined pursuant to Section 11(d) hereof) on the
date such Person  became an Acquiring  Person;  provided,  however,  that if the
transaction  that would otherwise give rise to the foregoing  adjustment is also
subject to the  provisions  of Section 13 hereof,  then only the  provisions  of
Section 13 hereof shall apply and no  adjustment  shall be made pursuant to this
Section 11(a)(ii). In the event that any Person shall become an Acquiring Person
and the Rights shall then be outstanding,  the Company shall not take any action
which would  eliminate or diminish  the benefits  intended to be afforded by the
Rights.

         Notwithstanding  anything in this  Agreement to the contrary,  from and
after the time any Person becomes an Acquiring Person,  any Rights  beneficially
owned  by (i)  such  Acquiring  Person  or an  Associate  or  Affiliate  of such
Acquiring  Person,  (ii) a transferee of such  Acquiring  Person (or of any such
Associate or  Affiliate)  who becomes a transferee  after the  Acquiring  Person
became such,  or (iii) a  transferee  of such  Acquiring  Person (or of any such
Associate or Affiliate) who becomes a transferee  prior to or concurrently  with
the Acquiring Person's becoming such and receives such Rights pursuant to either
(A) a transfer (whether or not for  consideration)  from the Acquiring Person to
holders of equity  interests in such Acquiring Person or to any Person with whom
the Acquiring Person has any continuing agreement,  arrangement or understanding
regarding the transferred  Rights or (B) a transfer which the Board of Directors
of the Company has determined is part of a plan,  arrangement  or  understanding
which  has as a  primary  purpose  or  effect  the  avoidance  of  this  Section
11(a)(ii),  shall become null and void without any further  action and no holder
of such Rights  shall have any rights  whatsoever  with  respect to such Rights,
whether  under any provision of this  Agreement or otherwise.  The Company shall
use all  reasonable  efforts  to  insure  that the  provisions  of this  Section
11(a)(ii) are complied  with, but shall have no liability to any holder of Right
Certificates   or  other  Person  as  a  result  of  its  failure  to  make  any
determinations with respect to an Acquiring Person or its Affiliates, Associates
or transferees hereunder.  No Right Certificate shall be issued at any time upon
the  transfer of any Rights to an  Acquiring  Person  whose Rights would be void
pursuant to the preceding  sentence or any Associate or Affiliate  thereof or to
any nominee of such  Acquiring  Person,  Associate or  Affiliate;  and any Right
Certificate  delivered to the Rights  Agent for transfer to an Acquiring  Person
whose Rights would be void pursuant to the preceding sentence shall be canceled.



                                       10.

<PAGE>

         (III) In the event that there  shall not be  sufficient  Common  Shares
issued but not  outstanding or authorized but unissued to permit the exercise in
full of the Rights in  accordance  with the  foregoing  subparagraph  (ii),  the
Company  shall take all such action as may be necessary to authorize  additional
Common Shares for issuance  upon  exercise of the Rights.  In the event that the
Company shall,  after a good faith effort,  be unable to take all such action as
may be necessary to authorize such additional  Common Shares,  the Company shall
substitute, for each Common Share that would otherwise be issuable upon exercise
of a Right,  a number of  Preferred  Shares or  fraction  thereof  such that the
current per share market price of one Preferred Share  multiplied by such number
or fraction thereof is equal to the current per share market price of one Common
Share as of the date of issuance of such Preferred  Shares or fraction  thereof;
provided,  however,  that  if  the  Company  is  further  unable  to  cause  the
authorization of a sufficient number of Preferred Shares, then, in the event the
Rights  become so  exercisable,  the Board of  Directors  may,  but shall not be
required  to, with  respect to each Right (A) pay cash in an amount equal to the
Purchase Price, in lieu of issuing Common Shares and requiring payment therefor,
or (B) issue debt or equity securities or a combination thereof,  having a value
equal to the Current Value of the Common Shares (as defined hereinafter),  where
the value of such  securities  shall be  determined  by a nationally  recognized
investment  banking firm selected by the Board of Directors of the Company,  and
require the payment of the Purchase  Price,  or (C) deliver any  combination  of
cash, property, Common Shares, Preferred Shares and/or other securities having a
value equal to the Current  Value,  and require  payment of all or any requisite
portions of the Purchase  Price.  The Current  Value shall be the product of the
current market price per share of Common Shares (determined  pursuant to Section
11(d) on the date of the occurrence of the event described above in subparagraph
(ii))  multiplied by the number of Common  Shares for which the Right  otherwise
would be exercisable if there were sufficient  shares  available.  To the extent
that the  Company  determines  that some  action  need be taken  pursuant to the
second  sentence  of  this  subparagraph  (iii),  the  Board  of  Directors  may
temporarily  suspend the  exercisability  of the Rights for a period of up to 45
days following the date on which the event described in Section  11(a)(ii) shall
have occurred,  in order to seek any  authorization of additional  Common Shares
and/or to decide the appropriate form of distribution to be made pursuant to the
above  provision  and to determine the value  thereof.  In the event of any such
suspension,  the Company  shall  issue a public  announcement  stating  that the
exercisability of the Rights has been temporarily suspended.

         (B) In case the  Company  shall fix a record  date for the  issuance of
rights,  options or warrants to all holders of Preferred  Shares  entitling them
(for a period  expiring  within 45  calendar  days  after such  record  date) to
subscribe  for or purchase  Preferred  Shares (or shares having the same rights,
privileges  and  preferences  as the  Preferred  Shares  ("equivalent  preferred
shares"))  or  securities   convertible  into  Preferred  Shares  or  equivalent
preferred  shares at a price per Preferred  Share or equivalent  preferred share
(or  having a  conversion  price  per  share,  if a  security  convertible  into
Preferred Shares or equivalent  preferred shares) less than the then current per
share market price of the Preferred Shares (as defined in Section 11(d)) on such
record date,  the Purchase Price to be in effect after such record date shall be
determined by multiplying the Purchase Price in effect immediately prior to such
record  date by a  fraction,  the  numerator  of which  shall be the  number  of
Preferred  Shares  outstanding  on such record date plus the number of Preferred
Shares  which the  aggregate  offering  price of the total  number of  Preferred
Shares and/or equivalent preferred shares so to be offered (and/or the aggregate
initial  conversion price of the convertible  securities so to be offered) would
purchase at such current


                                       11.

<PAGE>

market  price and the  denominator  of which  shall be the  number of  Preferred
Shares  outstanding on such record date plus the number of additional  Preferred
Shares and/or  equivalent  preferred  shares to be offered for  subscription  or
purchase  (or  into  which  the  convertible  securities  so to be  offered  are
initially  convertible);   provided,   however,  that  in  no  event  shall  the
consideration  to be paid  upon  the  exercise  of one  Right  be less  than the
aggregate par value of the shares of capital stock of the Company  issuable upon
exercise  of one  Right.  In  case  such  subscription  price  may be  paid in a
consideration part or all of which shall be in a form other than cash, the value
of such  consideration  shall be as  determined  in good  faith by the  Board of
Directors of the Company,  whose determination shall be described in a statement
filed with the Rights Agent.  Preferred  Shares owned by or held for the account
of the  Company  shall not be deemed  outstanding  for the  purpose  of any such
computation.  Such adjustment shall be made successively  whenever such a record
date is fixed; and in the event that such rights, options or warrants are not so
issued,  the  Purchase  Price shall be adjusted to be the  Purchase  Price which
would then be in effect if such record date had not been fixed.

         (C) In case the  Company  shall fix a record  date for the  making of a
distribution  to all  holders  of  the  Preferred  Shares  (including  any  such
distribution  made in  connection  with a  consolidation  or merger in which the
Company is the continuing or surviving corporation) of evidences of indebtedness
or assets (other than a regular quarterly cash dividend or a dividend payable in
Preferred Shares) or subscription  rights or warrants  (excluding those referred
to in Section  11(b)  hereof),  the  Purchase  Price to be in effect  after such
record date shall be  determined  by  multiplying  the Purchase  Price in effect
immediately  prior to such  record date by a fraction,  the  numerator  of which
shall be the then  current per share market  price of the  Preferred  Shares (as
defined in Section  11(d)) on such record  date,  less the fair market value (as
determined  in good  faith  by the  Board of  Directors  of the  Company,  whose
determination  shall be described in a statement filed with the Rights Agent) of
the portion of the assets or evidences of  indebtedness  so to be distributed or
of such  subscription  rights or warrants  applicable to one Preferred Share and
the  denominator  of which shall be such  current per share  market price of the
Preferred Shares; provided, however, that in no event shall the consideration to
be paid upon the exercise of one Right be less than the  aggregate  par value of
the shares of capital  stock of the  Company to be issued  upon  exercise of one
Right. Such adjustments  shall be made successively  whenever such a record date
is fixed;  and in the event that such  distribution is not so made, the Purchase
Price shall again be  adjusted to be the  Purchase  Price which would then be in
effect if such record date had not been fixed.

         (D) (I) For the purpose of any computation hereunder,  the "current per
share  market  price" of any  security  (a  "Security"  for the  purpose of this
Section  11(d)(i))  on any date  shall be deemed to be the  average of the daily
closing  prices per share of such Security for the 30  consecutive  Trading Days
(as such term is hereinafter  defined) immediately prior to such date; provided,
however,  that in the  event  that the  current  per share  market  price of the
Security is determined  during a period following the announcement by the issuer
of such Security of (A) a dividend or distribution  on such Security  payable in
shares of such Security or securities  convertible into such shares,  or (B) any
subdivision,  combination  or  reclassification  of such  Security or securities
convertible  into  such  shares,   or  (C)  any   subdivision,   combination  or
reclassification of such Security and prior to the expiration of 30 Trading Days
after the ex- dividend  date for such  dividend or  distribution,  or the record
date for such subdivision,  combination or  reclassification,  then, and in each
such case, the current per share market price


                                       12.

<PAGE>

shall be  appropriately  adjusted to reflect the current  market price per share
equivalent  of such  Security.  The closing price for each day shall be the last
sale price,  regular  way, or, in case no such sale takes place on such day, the
average of the  closing  bid and asked  prices,  regular  way, in either case as
reported in the principal consolidated transaction reporting system with respect
to securities  listed or admitted to trading on the New York Stock  Exchange or,
if the  Security  is not  listed or  admitted  to  trading on the New York Stock
Exchange, as reported in the principal consolidated transaction reporting system
with respect to securities listed on the principal national  securities exchange
on which the  Security  is listed or  admitted  to trading or as reported on the
Nasdaq  National Market or, if the Security is not listed or admitted to trading
on any national securities exchange, the last quoted price or, if not so quoted,
the average of the high bid and low asked prices in the over-the-counter market,
as reported by the National  Association of Securities  Dealers,  Inc. Automated
Quotations  System  ("Nasdaq")  or such other  system then in use, or, if on any
such date the  Security is not quoted by any such  organization,  the average of
the closing bid and asked  prices as furnished  by a  professional  market maker
making a market  in the  Security  selected  by the  Board of  Directors  of the
Company. The term "Trading Day" shall mean a day on which the principal national
securities  exchange  on which the  Security is listed or admitted to trading is
open for the  transaction  of  business  or, if the  Security  is not  listed or
admitted to trading on any national securities exchange, a Business Day.

                  (II)  For  the  purpose  of  any  computation  hereunder,  the
"current per share market price" of the Preferred  Shares shall be determined in
accordance  with the  method  set forth in Section  11(d)(i).  If the  Preferred
Shares are not publicly  traded,  the  "current  per share market  price" of the
Preferred Shares shall be conclusively deemed to be the current per share market
price  of  the  Common  Shares  as  determined   pursuant  to  Section  11(d)(i)
(appropriately  adjusted to reflect any stock split,  stock  dividend or similar
transaction  occurring  after the date hereof)  multiplied  by one  hundred.  If
neither  the Common  Shares nor the  Preferred  Shares are  publicly  held or so
listed or traded, "current per share market price" shall mean the fair value per
share as  determined  in good faith by the Board of  Directors  of the  Company,
whose  determination  shall be  described  in a statement  filed with the Rights
Agent.

         (E) No adjustment in the Purchase  Price shall be required  unless such
adjustment  would require an increase or decrease of at least 1% in the Purchase
Price;  provided,  however, that any adjustments which by reason of this Section
11(e) are not  required  to be made  shall be  carried  forward  and taken  into
account in any subsequent  adjustment.  All  calculations  under this Section 11
shall be made to the  nearest  cent or to the  nearest  one  one-millionth  of a
Preferred Share or one ten-thousandth of any other share or security as the case
may be. Notwithstanding the first sentence of this Section 11(e), any adjustment
required by this Section 11 shall be made no later than the earlier of (i) three
years from the date of the  transaction  which requires such  adjustment or (ii)
the date of the expiration of the right to exercise any Rights.

         (F) If as a result of an  adjustment  made  pursuant  to Section  11(a)
hereof,  the holder of any Right  thereafter  exercised shall become entitled to
receive any shares of capital stock of the Company other than Preferred  Shares,
thereafter  the number of such other shares so  receivable  upon exercise of any
Right shall be subject to adjustment  from time to time in a manner and on terms
as nearly  equivalent  as  practicable  to the  provisions  with  respect to the
Preferred  Shares  contained in Section  11(a) through (c),  inclusive,  and the
provisions of


                                       13.

<PAGE>

Sections 7, 9, 10, 13 and 14 with respect to the Preferred Shares shall apply on
like terms to any such other shares.

         (G) All  Rights  originally  issued by the  Company  subsequent  to any
adjustment  made to the Purchase  Price  hereunder  shall  evidence the right to
purchase,  at the adjusted Purchase Price, the number of one one-hundredths of a
Preferred  Share  purchasable  from time to time  hereunder upon exercise of the
Rights, all subject to further adjustment as provided herein.

         (H) Unless the Company shall have exercised its election as provided in
Section  11(i),  upon each  adjustment of the Purchase  Price as a result of the
calculations made in Section 11(b) and (c), each Right  outstanding  immediately
prior to the making of such adjustment  shall  thereafter  evidence the right to
purchase, at the adjusted Purchase Price, that number of one one-hundredths of a
Preferred  Share  (calculated  to the nearest one  one-millionth  of a Preferred
Share)  obtained by (i) multiplying  (x) the number of one  one-hundredths  of a
Preferred Share covered by a Right  immediately  prior to this adjustment by (y)
the  Purchase  Price  in  effect  immediately  prior to such  adjustment  of the
Purchase  Price and (ii) dividing the product so obtained by the Purchase  Price
in effect immediately after such adjustment of the Purchase Price.

         (I) The Company may elect on or after the date of any adjustment of the
Purchase  Price  to  adjust  the  number  of  Rights,  in  substitution  for any
adjustment in the number of one  one-hundredths of a Preferred Share purchasable
upon  the  exercise  of a  Right.  Each of the  Rights  outstanding  after  such
adjustment  of the number of Rights shall be  exercisable  for the number of one
one-hundredths   of  a  Preferred  Share  for  which  a  Right  was  exercisable
immediately  prior to such  adjustment.  Each Right held of record prior to such
adjustment  of  the  number  of  Rights  shall  become  that  number  of  Rights
(calculated  to the  nearest  one ten-  thousandth)  obtained  by  dividing  the
Purchase Price in effect  immediately  prior to adjustment of the Purchase Price
by the Purchase  Price in effect  immediately  after  adjustment of the Purchase
Price.  The Company shall make a public  announcement  of its election to adjust
the number of Rights,  indicating  the record date for the  adjustment,  and, if
known at the time, the amount of the adjustment to be made. This record date may
be the date on which the Purchase Price is adjusted or any day thereafter,  but,
if the Right Certificates have been issued, shall be at least 10 days later than
the date of the public  announcement.  If Right  Certificates  have been issued,
upon each adjustment of the number of Rights pursuant to this Section 11(i), the
Company shall, as promptly as practicable, cause to be distributed to holders of
record of Right Certificates on such record date Right Certificates  evidencing,
subject to Section 14 hereof,  the additional Rights to which such holders shall
be entitled as a result of such  adjustment,  or, at the option of the  Company,
shall cause to be  distributed  to such  holders of record in  substitution  and
replacement for the Right Certificates held by such holders prior to the date of
adjustment,  and upon surrender thereof,  if required by the Company,  new Right
Certificates  evidencing  all the Rights to which such holders shall be entitled
after such adjustment.  Right Certificates so to be distributed shall be issued,
executed  and  countersigned  in the  manner  provided  for  herein and shall be
registered  in the names of the holders of record of Right  Certificates  on the
record date specified in the public announcement.

         (J)  Irrespective  of any adjustment or change in the Purchase Price or
the number of one one-hundredths of a Preferred Share issuable upon the exercise
of the Rights,  the Right  Certificates  theretofore  and thereafter  issued may
continue to express the Purchase Price and the


                                       14.

<PAGE>

number of one  one-hundredths  of a Preferred  Share which were expressed in the
initial Right Certificates issued hereunder.

         (K) Before  taking any action that would cause an  adjustment  reducing
the Purchase Price below one one-hundredth of the then par value, if any, of the
Preferred  Shares  issuable upon exercise of the Rights,  the Company shall take
any corporate  action which may, in the opinion of its counsel,  be necessary in
order  that  the  Company   may  validly  and  legally   issue  fully  paid  and
nonassessable Preferred Shares at such adjusted Purchase Price.

         (L) In any  case  in  which  this  Section  11  shall  require  that an
adjustment  in the  Purchase  Price be made  effective as of a record date for a
specified  event,  the Company may elect to defer until the  occurrence  of such
event the issuing to the holder of any Right exercised after such record date of
the Preferred  Shares and other  capital stock or securities of the Company,  if
any,  issuable upon such  exercise on the basis of the Purchase  Price in effect
prior to such adjustment;  provided,  however, that the Company shall deliver to
such holder a due bill or other appropriate  instrument evidencing such holder's
right to  receive  such  additional  shares  upon the  occurrence  of the  event
requiring such adjustment.

         (M) Anything in this Section 11 to the  contrary  notwithstanding,  the
Company  shall be entitled to make such  reductions  in the Purchase  Price,  in
addition to those adjustments  expressly  required by this Section 11, as and to
the extent that it in its sole  discretion  shall  determine  to be advisable in
order that any  consolidation or subdivision of the Preferred  Shares,  issuance
wholly for cash of any Preferred  Shares at less than the current  market price,
issuance wholly for cash of Preferred  Shares or securities which by their terms
are  convertible  into  or  exchangeable  for  Preferred  Shares,  dividends  on
Preferred Shares payable in Preferred  Shares or issuance of rights,  options or
warrants referred to hereinabove in Section 11(b), hereafter made by the Company
to holders of its Preferred Shares shall not be taxable to such shareholders.

         (N) In the event that at any time after the date of this  Agreement and
prior to the  Distribution  Date,  the  Company  shall  (i)  declare  or pay any
dividend  on the  Common  Shares  payable  in  Common  Shares  or (ii)  effect a
subdivision,   combination   or   consolidation   of  the   Common   Shares  (by
reclassification  or otherwise  than by payment of  dividends in Common  Shares)
into a greater or lesser number of Common Shares,  then in any such case (A) the
number of one  one-hundredths  of a Preferred Share purchasable after such event
upon proper exercise of each Right shall be determined by multiplying the number
of one  one-hundredths of a Preferred Share so purchasable  immediately prior to
such event by a fraction,  the numerator of which is the number of Common Shares
outstanding  immediately  before such event and the  denominator of which is the
number of Common Shares  outstanding  immediately after such event, and (B) each
Common  Share  outstanding  immediately  after such event shall have issued with
respect  to it that  number  of  Rights  which  each  Common  Share  outstanding
immediately  prior to such event had issued with respect to it. The  adjustments
provided for in this Section  11(n) shall be made  successively  whenever such a
dividend is declared or paid or such a subdivision, combination or consolidation
is effected.

         SECTION 12. CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF SHARES.
Whenever an  adjustment  is made as  provided in Sections 11 and 13 hereof,  the
Company shall


                                       15.

<PAGE>

promptly (a) prepare a certificate  setting forth such  adjustment,  and a brief
statement of the facts accounting for such adjustment,  (b) file with the Rights
Agent and with each transfer agent for the Common Shares or the Preferred Shares
a copy of such  certificate  and (c) mail a brief summary thereof to each holder
of a Right  Certificate in accordance  with Section 25 hereof.  The Rights Agent
shall  be  fully  protected  in  relying  on  any  such  certificate  and on any
adjustment  therein  contained and shall not be deemed to have  knowledge of any
adjustment unless and until it shall have received such certificate.

         SECTION  13.  CONSOLIDATION,  MERGER OR SALE OR  TRANSFER  OF ASSETS OR
EARNING POWER.

         (A) In the event that,  following the Shares Acquisition Date, directly
or indirectly  (x) the Company shall  consolidate  with, or merge with and into,
any other Person,  (y) any Person shall  consolidate with the Company,  or merge
with and into the Company,  and the Company shall be the continuing or surviving
corporation  of such  merger  (other  than,  in the case of  either  transaction
described in (x) or (y), a merger or consolidation  which would result in all of
the voting  power  represented  by the  securities  of the  Company  outstanding
immediately   prior  thereto   continuing  to  represent  (either  by  remaining
outstanding or by being converted into  securities of the surviving  entity) all
of the  voting  power  represented  by the  securities  of the  Company  or such
surviving entity outstanding  immediately after such merger or consolidation and
the holders of such  securities not having changed as a result of such merger or
consolidation),  or (z) the Company shall sell,  mortgage or otherwise  transfer
(or one or more of its subsidiaries shall sell, mortgage or otherwise transfer),
in one or more  transactions,  assets or earning power aggregating more than 50%
of the assets or earning power of the Company and its  subsidiaries  (taken as a
whole) to any other Person,  then, and in each such case, proper provision shall
be made so that (i) following  the  Distribution  Date,  each holder of a Right,
subject to Section  7(e),  shall have the right to  receive,  upon the  exercise
thereof at a price equal to the then current  Purchase  Price  multiplied by the
number  of  one-hundredths  of a  Preferred  Share  for  which a  Right  is then
exercisable  in  accordance  with  the  terms of this  Agreement  and in lieu of
Preferred Shares, such number of shares of freely tradeable Common Shares of the
Principal Party (as  hereinafter  defined),  free and clear of liens,  rights of
call or first refusal,  encumbrances or other adverse claims,  as shall be equal
to the result obtained by (A) multiplying the then current Purchase Price by the
number  of one  one-hundredths  of a  Preferred  Share for which a Right is then
exercisable (without taking into account any adjustment previously made pursuant
to Section  11(a)(ii)  hereof) and dividing  that product by (B) 50% of the then
current per share  market  price of the Common  Shares of such  Principal  Party
(determined  pursuant to Section  11(d) hereof) on the date of  consummation  of
such consolidation,  merger,  sale or transfer;  (ii) such Principal Party shall
thereafter  be liable for, and shall  assume,  by virtue of such  consolidation,
merger, sale or transfer, all the obligations and duties of the Company pursuant
to this Agreement;  (iii) the term "Company" shall thereafter be deemed to refer
to such Principal Party, it being  specifically  intended that the provisions of
Section 11 hereof shall apply to such Principal  Party;  and (iv) such Principal
Party shall take such steps (including, but not limited to, the reservation of a
sufficient  number of shares of its Common Shares in  accordance  with Section 9
hereof) in connection with such  consummation as may be necessary to assure that
the provisions  hereof shall  thereafter be applicable,  as nearly as reasonably
may be,  in  relation  to its  Common  Shares  thereafter  deliverable  upon the
exercise of the Rights.



                                       16.

<PAGE>

         (B) "Principal Party" shall mean:

                  (I) in the case of any transaction  described in (x) or (y) of
         the first sentence of Section  13(a),  the Person that is the issuer of
         any securities into which Common Shares of the Company are converted in
         such merger or consolidation,  and if no securities are so issued,  the
         Person  that  is  the  other  party  to  the  merger  or  consolidation
         (including,  if  applicable,  the  Company,  if  it  is  the  surviving
         corporation); and

                  (II) in the case of any  transaction  described  in (z) of the
         first sentence in Section 13(a), the Person that is the party receiving
         the  greatest  portion  of the  assets  or  earning  power  transferred
         pursuant to such transaction or transactions;

provided, however, that in any case, (1) if the Common Shares of such Person are
not at such  time and have not been  continuously  over the  preceding  12-month
period  registered  under  Section 12 of the Exchange  Act, and such Person is a
direct or indirect  subsidiary or Affiliate of another  Person the Common Shares
of which are and have been so registered,  "Principal Party" shall refer to such
other Person;  (2) in case such Person is a subsidiary,  directly or indirectly,
or Affiliate of more than one Person,  the Common Shares of two or more of which
are and have been so registered,  "Principal  Party" shall refer to whichever of
such Persons is the issuer of the Common  Shares  having the greatest  aggregate
market value; and (3) in case such Person is owned, directly or indirectly, by a
joint  venture  formed by two or more  Persons  that are not owned,  directly or
indirectly,  by the same Person,  the rules set forth in (1) and (2) above shall
apply to each of the  chains of  ownership  having  an  interest  in such  joint
venture  as if such  party  were a  "subsidiary"  of  both or all of such  joint
venturers  and  the  Principal  Parties  in  each  such  chain  shall  bear  the
obligations  set forth in this  Section 13 in the same ratio as their  direct or
indirect interests in such Person bear to the total of such interests.

         (C) The Company shall not  consummate any such  consolidation,  merger,
sale or transfer  unless the Principal  Party shall have a sufficient  number of
authorized shares of its Common Shares that have not been issued or reserved for
issuance to permit the  exercise in full of the Rights in  accordance  with this
Section 13 and unless  prior  thereto the Company and each  Principal  Party and
each  other  Person  who may  become  a  Principal  Party  as a  result  of such
consolidation, merger, sale or transfer shall have executed and delivered to the
Rights  Agent a  supplemental  agreement  providing  for the  terms set forth in
paragraphs (a) and (b) of this Section 13 and further providing that, as soon as
practicable  after the date of any  consolidation,  merger,  sale or transfer of
assets mentioned in paragraph (a) of this Section 13, the Principal Party at its
own expense will:

                  (I)  prepare  and  file a  registration  statement  under  the
         Securities  Act of 1933 (the "Act") with  respect to the Rights and the
         securities  purchasable  upon exercise of the Rights on an  appropriate
         form, will use its best efforts to cause such registration statement to
         become effective as soon as practicable  after such filing and will use
         its best  efforts  to  cause  such  registration  statement  to  remain
         effective  (with a prospectus at all times meeting the  requirements of
         the Act) until the Final Expiration Date;



                                       17.

<PAGE>

                  (II) use its best  efforts to qualify or  register  the Rights
         and the  securities  purchasable  upon exercise of the Rights under the
         blue sky laws of such jurisdictions as may be necessary or appropriate;
         and

                  (III)  deliver to holders of the Rights  historical  financial
         statements  for the Principal  Party and each of its  Affiliates  which
         comply in all material  respects with the requirements for registration
         on Form 10 under the Exchange Act.

The provisions of this Section 13 shall similarly apply to successive mergers or
consolidations or sales or other transfers.

         (D) After the Shares Acquisition Date, the Company covenants and agrees
that it shall not (i)  consolidate  with, (ii) merge with or into, or (iii) sell
or transfer to, in one or more transactions, assets or earning power aggregating
more than 50% of the assets or earning power of the Company and its subsidiaries
taken  as a  whole,  any  other  Person,  if  at  the  time  of  or  after  such
consolidation,  merger or sale there are any charter or bylaw  provisions or any
rights, warrants or other instruments or securities  outstanding,  agreements in
effect or any other action taken which would diminish or otherwise eliminate the
benefits intended to be afforded by the Rights. The Company shall not consummate
any such consolidation, merger or sale unless prior thereto the Company and such
other  Person  shall  have   executed  and  delivered  to  the  Rights  Agent  a
supplemental agreement evidencing compliance with this subsection.

         SECTION 14. FRACTIONAL RIGHTS AND FRACTIONAL SHARES.

         (A) The Company  shall not be required to issue  fractions of Rights or
to distribute Right  Certificates  which evidence  fractional Rights. In lieu of
such  fractional  Rights,  there shall be paid to the registered  holders of the
Right  Certificates  with regard to which such fractional Rights would otherwise
be issuable,  an amount in cash equal to the same fraction of the current market
value of a whole  Right.  For the purposes of this  Section  14(a),  the current
market  value of a whole Right shall be the closing  price of the Rights for the
Trading Day immediately  prior to the date on which such fractional Rights would
have been  otherwise  issuable.  The closing price for any day shall be the last
sale price,  regular  way, or, in case no such sale takes place on such day, the
average of the  closing  bid and asked  prices,  regular  way, in either case as
reported in the principal consolidated transaction reporting system with respect
to securities  listed or admitted to trading on the New York Stock  Exchange or,
if the  Rights  are not  listed or  admitted  to  trading  on the New York Stock
Exchange, as reported in the principal consolidated transaction reporting system
with respect to securities listed on the principal national  securities exchange
on which the Rights  are listed or  admitted  to trading or as  reported  on the
Nasdaq  National  Market or, if the Rights are not listed or admitted to trading
on any national securities exchange, the last quoted price or, if not so quoted,
the average of the high bid and low asked prices in the over-the-counter market,
as reported  by Nasdaq or such other  system then in use or, if on any such date
the Rights are not quoted by any such  organization,  the average of the closing
bid and asked prices as furnished by a professional market maker making a market
in the Rights selected by the Board of Directors of the Company.  If on any such
date no such market  maker is making a market in the  Rights,  the fair value of
the Rights on such date as determined in good faith by the Board of Directors of
the Company shall be used.



                                       18.

<PAGE>

         (B) The Company  shall not be required to issue  fractions of Preferred
Shares (other than fractions which are integral  multiples of one  one-hundredth
of a Preferred Share) upon exercise of the Rights or to distribute  certificates
which  evidence  fractional  Preferred  Shares (other than  fractions  which are
integral  multiples of one  one-hundredth  of a Preferred  Share).  Fractions of
Preferred Shares in integral multiples of one one-hundredth of a Preferred Share
may, at the  election of the  Company,  be  evidenced  by  depositary  receipts;
provided,  however,  that holders of such depositary  receipts shall have all of
the rights,  privileges and preferences to which they are entitled as beneficial
owners of the Preferred Shares represented by such depositary receipts.  In lieu
of  fractional   Preferred  Shares  that  are  not  integral  multiples  of  one
one-hundredth  of a Preferred  Share,  the Company  shall pay to the  registered
holders of Right  Certificates  at the time such Rights are  exercised as herein
provided  an amount in cash equal to the same  fraction  of the  current  market
value of one  Preferred  Share.  For the  purposes of this  Section  14(b),  the
current  market  value of a  Preferred  Share  shall be the  closing  price of a
Preferred  Share (as  determined  pursuant  to the  second  sentence  of Section
11(d)(i)  hereof)  for the  Trading  Day  immediately  prior to the date of such
exercise.

         (C) The  holder of a Right by the  acceptance  of the  Right  expressly
waives his right to receive any fractional  Rights or any fractional shares upon
exercise of a Right (except as provided above).

         SECTION 15.  RIGHTS OF ACTION.  All rights of action in respect of this
Agreement,  excepting  the  rights of action  given to the  Rights  Agent  under
Sections 18 and 20 hereof,  are vested in the respective  registered  holders of
the Right  Certificates  (and,  prior to the  Distribution  Date, the registered
holders of the Common Shares) and any registered holder of any Right Certificate
(or, prior to the Distribution Date, of the Common Shares),  without the consent
of the Rights Agent or of the holder of any other Right  Certificate  (or, prior
to the Distribution Date, of the Common Shares),  may, in his own behalf and for
his own benefit,  enforce,  and may institute  and maintain any suit,  action or
proceeding  against the Company to enforce,  or otherwise act in respect of, his
right to exercise the Rights  evidenced by such Right  Certificate in the manner
provided in such Right  Certificate and in this Agreement.  Without limiting the
foregoing or any remedies available to the holders of Rights, it is specifically
acknowledged that the holders of Rights would not have an adequate remedy at law
for any breach of this Agreement and will be entitled to specific performance of
the  obligations  under,  and  injunctive  relief  against  actual or threatened
violations of the obligations of any Person subject to, this Agreement.  Holders
of Rights  shall be  entitled  to recover  the  reasonable  costs and  expenses,
including  attorneys  fees,  incurred  by  them in any  action  to  enforce  the
provisions of this Agreement.

         SECTION 16.  AGREEMENT OF RIGHT  HOLDERS.  Every holder of a Right,  by
accepting  the same,  consents  and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

         (A) prior to the  Distribution  Date,  the Rights will be  transferable
only in connection with the transfer of the Common Shares;



                                       19.

<PAGE>

                  (B) after the  Distribution  Date, the Right  Certificates are
transferable  only on the registry  books of the Rights Agent if  surrendered at
the principal  office of the Rights Agent,  duly  endorsed or  accompanied  by a
proper instrument of transfer; and

                  (C) the  Company  and the Rights  Agent may deem and treat the
person in whose name the Right Certificate (or, prior to the Distribution  Date,
the associated  Common Shares  certificate)  is registered as the absolute owner
thereof and of the Rights evidenced  thereby  (notwithstanding  any notations of
ownership or writing on the Right  Certificates or the associated  Common Shares
certificate  made by anyone other than the Company or the Rights  Agent) for all
purposes  whatsoever,  and neither  the  Company  nor the Rights  Agent shall be
affected by any notice to the contrary.

         SECTION  17.  RIGHT  CERTIFICATE  HOLDER NOT DEEMED A  SHAREHOLDER.  No
holder,  as such, of any Right  Certificate  shall be entitled to vote,  receive
dividends or be deemed for any purpose the holder of the Preferred Shares or any
other  securities  of the  Company  which  may at any  time be  issuable  on the
exercise of the Rights represented  thereby, nor shall anything contained herein
or in any Right  Certificate be construed to confer upon the holder of any Right
Certificate,  as such,  any of the rights of a shareholder of the Company or any
right to vote for the  election of  directors  or upon any matter  submitted  to
shareholders  at any  meeting  thereof,  or to give or  withhold  consent to any
corporate  action,  or to receive notice of meetings or other actions  affecting
shareholders  (except as provided in Section 25 hereof), or to receive dividends
or subscription  rights,  or otherwise,  until the Right or Rights  evidenced by
such  Right  Certificate  shall  have  been  exercised  in  accordance  with the
provisions hereof.

         SECTION 18.  CONCERNING THE RIGHTS AGENT.  The Company agrees to pay to
the  Rights  Agent  reasonable  compensation  for all  services  rendered  by it
hereunder and, from time to time, on demand of the Rights Agent,  its reasonable
expenses and counsel fees and other disbursements incurred in the administration
and execution of this  Agreement and the exercise and  performance of its duties
hereunder.  The Company  also agrees to  indemnify  the Rights Agent for, and to
hold it harmless  against,  any loss,  liability,  or expense,  incurred without
negligence, bad faith or willful misconduct on the part of the Rights Agent, for
anything done or omitted by the Rights Agent in connection  with the  acceptance
and  administration  of this  Agreement,  including  the costs and  expenses  of
defending against any claim of liability in the premises. The indemnity provided
herein shall survive the  expiration of the Rights and the  termination  of this
Agreement.

         The Rights Agent shall be protected  and shall incur no liability  for,
or in respect of any action taken, suffered or omitted by it in connection with,
its  administration  of this Agreement in reliance upon any Right Certificate or
certificate for the Preferred Shares or Common Shares or for other securities of
the  Company,   instrument  of  assignment  or  transfer,   power  of  attorney,
endorsement,   affidavit,  letter,  notice,  direction,   consent,  certificate,
statement,  or other  paper or  document  believed by it to be genuine and to be
signed, executed and, where necessary,  verified or acknowledged,  by the proper
person or  persons,  or  otherwise  upon the  advice of  counsel as set forth in
Section 20 hereof.

         SECTION 19. MERGER OR  CONSOLIDATION OR CHANGE OF NAME OF RIGHTS AGENT.
Any corporation into which the Rights Agent or any successor Rights Agent may be
merged or with


                                       20.

<PAGE>

which it may be  consolidated,  or any corporation  resulting from any merger or
consolidation to which the Rights Agent or any successor Rights Agent shall be a
party,  or any corporation  succeeding to the shareholder  services or corporate
trust business of the Rights Agent or any successor  Rights Agent,  shall be the
successor  to the Rights  Agent under this  Agreement  without the  execution or
filing of any paper or any further act on the part of any of the parties hereto,
provided that such corporation  would be eligible for appointment as a successor
Rights Agent under the provisions of Section 21 hereof. In case at the time such
successor Rights Agent shall succeed to the agency created by this Agreement any
of the Right Certificates  shall have been countersigned but not delivered,  any
such successor  Rights Agent may adopt the  countersignature  of the predecessor
Rights Agent and deliver such Right  Certificates so countersigned;  and in case
at that time any of the Right  Certificates  shall not have been  countersigned,
any successor Rights Agent may countersign such Right Certificates either in the
name of the  predecessor  Rights  Agent or in the name of the  successor  Rights
Agent; and in all such cases such Right  Certificates  shall have the full force
provided in the Right Certificates and in this Agreement.

         In case at any time the name of the Rights  Agent  shall be changed and
at such time any of the Right Certificates shall have been countersigned but not
delivered,  the Rights Agent may adopt the countersignature under its prior name
and deliver Right Certificates so countersigned; and in case at that time any of
the Right Certificates shall not have been  countersigned,  the Rights Agent may
countersign such Right  Certificates  either in its prior name or in its changed
name;  and in all such cases such Right  Certificates  shall have the full force
provided in the Right Certificates and in this Agreement.

         SECTION 20. DUTIES OF RIGHTS  AGENT.  The Rights Agent  undertakes  the
duties and  obligations  imposed by this Agreement upon the following  terms and
conditions,  by all of which the Company and the holders of Right  Certificates,
by their acceptance thereof, shall be bound:

         (A) The Rights Agent may consult with legal  counsel of its choice (who
may be legal counsel for the Company),  and the opinion of such counsel shall be
full and complete  authorization  and  protection  to the Rights Agent as to any
action taken or omitted by it in good faith and in accordance with such opinion.

         (B) Whenever in the  performance of its duties under this Agreement the
Rights Agent shall deem it  necessary  or  desirable  that any fact or matter be
proved or  established  by the Company  prior to taking or suffering  any action
hereunder,  such fact or matter  (unless  other  evidence in respect  thereof be
herein  specifically  prescribed)  may be deemed to be  conclusively  proved and
established by a certificate signed by any one of the Chairman of the Board, the
Chief Executive Officer,  the President,  the Chief Financial Officer,  any Vice
President,  the  Treasurer or the  Secretary of the Company and delivered to the
Rights Agent;  and such  certificate  shall be full  authorization to the Rights
Agent for any action taken or suffered in good faith by it under the  provisions
of this Agreement in reliance upon such certificate.

         (C) The Rights  Agent shall be liable  hereunder to the Company and any
other Person only for its own negligence, bad faith or willful misconduct.

         (D) The Rights Agent shall not be liable for or by reason of any of the
statements  of fact or  recitals  contained  in this  Agreement  or in the Right
Certificates (except its


                                       21.

<PAGE>

countersignature  thereof)  or be  required  to verify  the  same,  but all such
statements and recitals are and shall be deemed to have been made by the Company
only.

         (E) The Rights Agent shall not be under any  responsibility  in respect
of the validity of this  Agreement or the execution and delivery  hereof (except
the due  execution  hereof by the Rights Agent) or in respect of the validity or
execution of any Right Certificate (except its  countersignature  thereof);  nor
shall it be  responsible  for any  breach  by the  Company  of any  covenant  or
condition contained in this Agreement or in any Right Certificate;  nor shall it
be responsible for any change in the exercisability of the Rights (including the
Rights becoming void pursuant to Section  11(a)(ii) hereof) or any adjustment in
the terms of the  Rights  (including  the  manner,  method  or  amount  thereof)
provided  for in  Section  3,  11,  13,  23 or 24,  or the  ascertaining  of the
existence of facts that would require any such change or adjustment (except with
respect to the exercise of Rights evidenced by Right  Certificates after receipt
of a certificate  pursuant to Section 12 describing  such change or adjustment);
nor  shall it by any act  hereunder  be  deemed  to make any  representation  or
warranty as to the  authorization  or reservation of any Preferred  Shares to be
issued pursuant to this Agreement or any Right  Certificate or as to whether any
Preferred Shares will, when issued, be validly authorized and issued, fully paid
and nonassessable.

         (F) The Company agrees that it will perform,  execute,  acknowledge and
deliver or cause to be performed, executed,  acknowledged and delivered all such
further and other acts, instruments and assurances as may reasonably be required
by the Rights Agent for the carrying  out or  performing  by the Rights Agent of
the provisions of this Agreement.

         (G) The  Rights  Agent is  hereby  authorized  and  directed  to accept
instructions  with respect to the  performance of its duties  hereunder from any
one of the Chairman of the Board,  the Chief Executive  Officer,  the President,
the Chief Financial Officer, any Vice President,  the Secretary or the Treasurer
of the  Company,  and to apply to such  officers for advice or  instructions  in
connection  with its duties,  and it shall not be liable for any action taken or
suffered by it in good faith in accordance with instructions of any such officer
or for any delay in acting while waiting for those instructions. Any application
by the Rights Agent for written instructions from the Company may, at the option
of the Rights  Agent,  set forth in writing  any action  proposed to be taken or
omitted by the Rights Agent with respect to its duties or obligations under this
Rights  Agreement  and the date on and/or after which such action shall be taken
or omitted  and the  Rights  Agent  shall not be liable for any action  taken or
omitted in accordance  with a proposal  included in any such  application  on or
after the date  specified  therein  (which  date  shall  not be less than  three
business  days  after the date  indicated  in such  application  unless any such
officer shall have  consented in writing to an earlier  date)  unless,  prior to
taking or  omitting  any such  action,  the Rights  Agent has  received  written
instructions in response to such  application  specifying the action to be taken
or omitted.

         (H) The Rights Agent and any shareholder, director, officer or employee
of the  Rights  Agent  may  buy,  sell  or deal in any of the  Rights  or  other
securities of the Company or become pecuniarily interested in any transaction in
which the  Company  may be  interested,  or  contract  with or lend money to the
Company or otherwise  act as fully and freely as though it were not Rights Agent
under this Agreement. Nothing herein shall preclude the Rights Agent from acting
in any other capacity for the Company or for any other legal entity.


                                       22.

<PAGE>

         (I) The Rights  Agent may  execute  and  exercise  any of the rights or
powers hereby vested in it or perform any duty hereunder  either itself or by or
through its attorneys or agents, and the Rights Agent shall not be answerable or
accountable for any act, default, neglect or misconduct of any such attorneys or
agents or for any loss to the  Company  resulting  from any such  act,  default,
neglect or misconduct,  provided  reasonable care was exercised in the selection
and continued employment thereof.

         (J) No provision of this  Agreement  shall  require the Rights Agent to
expend or risk its own funds or otherwise  incur any financial  liability in the
performance  of any of its duties  hereunder or in the exercise of its rights if
there shall be reasonable  grounds for believing that repayment of such funds or
adequate  indemnification  against  such  risk or  liability  is not  reasonably
assured to it.

         (K) If, with respect to any Right Certificate surrendered to the Rights
Agent  for  exercise  or  transfer,  the  certificate  attached  to the  form of
assignment  or form of  election to  purchase,  as the case may be, has not been
executed,  the Rights  Agent shall not take any further  action with  respect to
such requested exercise of transfer without first consulting with the Company.

         SECTION 21. CHANGE OF RIGHTS  AGENT.  The Rights Agent or any successor
Rights Agent may resign and be discharged  from its duties under this  Agreement
upon 30 days' notice in writing mailed to the Company and to each transfer agent
for the Common Shares or Preferred  Shares by registered or certified  mail, and
to the holders of the Right  Certificates  by first-class  mail. The Company may
remove the Rights  Agent or any  successor  Rights Agent upon 30 days' notice in
writing,  mailed to the Rights Agent or successor  Rights Agent, as the case may
be, and to each  transfer  agent for the Common  Shares or  Preferred  Shares by
registered or certified  mail, and to the holders of the Right  Certificates  by
first-class  mail.  If the  Rights  Agent  shall  resign or be  removed or shall
otherwise become  incapable of acting,  the Company shall appoint a successor to
the Rights Agent.  If the Company shall fail to make such  appointment  within a
period  of 30 days  after  giving  notice of such  removal  or after it has been
notified  in writing of such  resignation  or  incapacity  by the  resigning  or
incapacitated  Rights Agent or by the holder of a Right  Certificate (who shall,
with such notice,  submit his Right  Certificate for inspection by the Company),
then the registered  holder of any Right  Certificate  may apply to any court of
competent  jurisdiction for the appointment of a new Rights Agent. Any successor
Rights Agent,  whether  appointed by the Company or by such a court,  shall be a
corporation  organized and doing business under the laws of the United States or
of any other state of the United States which is  authorized  under such laws to
exercise  corporate trust or stock transfer powers and is subject to supervision
or  examination  by federal or state  authority and which has at the time of its
appointment  as Rights  Agent a  combined  capital  and  surplus of at least $50
million. After appointment,  the successor Rights Agent shall be vested with the
same powers,  rights,  duties and  responsibilities as if it had been originally
named as Rights Agent without  further act or deed; but the  predecessor  Rights
Agent shall deliver and transfer to the  successor  Rights Agent any property at
the time held by it  hereunder,  and execute and deliver any further  assurance,
conveyance,  act or deed necessary for the purpose. Not later than the effective
date of any such  appointment  the Company shall file notice  thereof in writing
with the predecessor  Rights Agent and each transfer agent for the Common Shares
or  Preferred  Shares,  and mail a notice  thereof in writing to the  registered
holders of the Right Certificates. Failure


                                       23.

<PAGE>

to give any notice  provided  for in this  Section  21,  however,  or any defect
therein, shall not affect the legality or validity of the resignation or removal
of the Rights Agent or the  appointment  of the successor  Rights Agent,  as the
case may be.

         SECTION 22. ISSUANCE OF NEW RIGHT CERTIFICATES.  Notwithstanding any of
the provisions of this  Agreement or of the Rights to the contrary,  the Company
may, at its option, issue new Right Certificates  evidencing Rights in such form
as may be approved by its Board of Directors to reflect any adjustment or change
in the  Purchase  Price  and the  number  or kind or  class of  shares  or other
securities  or  property  purchasable  under  the  Right  Certificates  made  in
accordance with the provisions of this Agreement.

         SECTION 23. REDEMPTION.

         (A) The  Rights  may be  redeemed  by action of the Board of  Directors
pursuant to  subsection  (b) of this Section 23 and shall not be redeemed in any
other manner.

         (B) The Board of Directors  of the Company  may, at its option,  at any
time prior to the earlier of (i) the close of business on the Shares Acquisition
Date; or (ii) the Final  Expiration  Date,  redeem all but not less than all the
then outstanding  Rights at a redemption price of $.01 per Right,  appropriately
adjusted  to reflect any stock  split,  stock  dividend  or similar  transaction
occurring  after  the date  hereof  (such  redemption  price  being  hereinafter
referred to as the "Redemption  Price"), and the Company may, at its option, pay
the  Redemption  Price in Common  Shares (based on the "current per share market
price," as defined in Section 11(d) hereof,  of the Common Shares at the time of
redemption),  cash or any other form of consideration  deemed appropriate by the
Board of Directors.  The  redemption of the Rights by the Board of Directors may
be made effective at such time, on such basis and subject to such  conditions as
the Board of Directors in its sole  discretion  may  establish.  Notwithstanding
anything  contained in this  Agreement to the contrary,  the Rights shall not be
exercisable  pursuant to Section  11(a)(ii)  hereof prior to the  expiration  or
termination of the Company's right of redemption hereunder.

         (C)  Immediately  upon the  action  of the  Board of  Directors  of the
Company ordering the redemption of the Rights pursuant to subsection (b) of this
Section 23, and without any further action and without any notice,  the right to
exercise the Rights will terminate and the only right  thereafter of the holders
of Rights shall be to receive the Redemption  Price.  The Company shall promptly
give public notice of any such redemption;  provided,  however, that the failure
to give, or any defect in, any such notice shall not affect the validity of such
redemption.  Within 10 days after such action of the Board of Directors ordering
the redemption of the Rights pursuant to subsection (b) the Company shall mail a
notice of redemption to all the holders of the then outstanding  Rights at their
last  addresses as they appear upon the  registry  books of the Rights Agent or,
prior to the Distribution  Date, on the registry books of the transfer agent for
the Common  Shares.  Any notice  which is mailed in the manner  herein  provided
shall be deemed given,  whether or not the holder receives the notice. Each such
notice  of  redemption  will  state  the  method  by which  the  payment  of the
Redemption Price will be made.  Neither the Company nor any of its Affiliates or
Associates  may redeem,  acquire or purchase for value any Rights at any time in
any  manner  other  than that  specifically  set forth in this  Section 23 or in
Section 24


                                       24.

<PAGE>

hereof, and other than in connection with the purchase of Common Shares prior to
the Distribution Date.

         (D) The Company may, at its option,  discharge  all of its  obligations
with respect to the Rights by (i) issuing a press release  announcing the manner
of redemption of the Rights and (ii) mailing payment of the Redemption  Price to
the  registered  holders of the Rights at their last addresses as they appear on
the registry  books of the Rights Agent or, prior to the  Distribution  Date, on
the registry books of the transfer  agent for the Common  Shares,  and upon such
action,  all outstanding Right  Certificates  shall be null and void without any
further action by the Company.

         SECTION 24. EXCHANGE.

         (A) The Board of Directors  of the Company  may, at its option,  at any
time after any Person becomes an Acquiring  Person,  exchange all or part of the
then  outstanding  and  exercisable  Rights (which shall not include Rights that
have become void  pursuant to the  provisions of Section  11(a)(ii)  hereof) for
Common Shares at an exchange ratio of one Common Share per Right,  appropriately
adjusted  to reflect any stock  split,  stock  dividend  or similar  transaction
occurring after the date hereof (such exchange ratio being hereinafter  referred
to as the  "Exchange  Ratio").  Notwithstanding  the  foregoing,  the  Board  of
Directors  shall not be empowered to effect such  exchange at any time after any
Person  (other than the Company,  any  Subsidiary  of the Company,  any employee
benefit plan of the Company or any such Subsidiary, or any entity holding Common
Shares  for or  pursuant  to the  terms of any  such  plan),  together  with all
Affiliates and Associates of such Person, becomes the Beneficial Owner of 50% or
more of the Common Shares then outstanding.

         (B)  Immediately  upon the  action  of the  Board of  Directors  of the
Company  ordering the exchange of any Rights  pursuant to subsection (a) of this
Section 24 and without any further  action and without any notice,  the right to
exercise such Rights shall  terminate and the only right  thereafter of a holder
of such Rights  shall be to receive  that number of Common  Shares  equal to the
number of such Rights held by such holder  multiplied by the Exchange Ratio. The
Company  shall  promptly  give  public  notice of any such  exchange;  provided,
however,  that the  failure to give,  or any defect in,  such  notice  shall not
affect the validity of such exchange.  The Company  promptly shall mail a notice
of any  such  exchange  to all of the  holders  of such  Rights  at  their  last
addresses as they appear upon the registry books of the Rights Agent. Any notice
which is mailed in the manner herein provided shall be deemed given,  whether or
not the holder receives the notice.  Each such notice of exchange will state the
method by which the  exchange  of the Common  Shares for Rights will be effected
and, in the event of any partial  exchange,  the number of Rights  which will be
exchanged.  Any partial  exchange shall be effected pro rata based on the number
of Rights (other than Rights which have become void  pursuant to the  provisions
of Section 11(a)(ii) hereof) held by each holder of Rights.

         (C) In the event  that  there  shall not be  sufficient  Common  Shares
issued but not  outstanding or authorized but unissued to permit any exchange of
Rights as  contemplated  in  accordance  with this Section 24, the Company shall
take all such action as may be necessary to authorize  additional  Common Shares
for issuance upon exchange of the Rights.  In the event that the Company  shall,
after a good faith effort, be unable to take all such action as may be


                                       25.

<PAGE>

necessary  to  authorize  such  additional  Common  Shares,  the  Company  shall
substitute, for each Common Share that would otherwise be issuable upon exchange
of a Right,  a number of  Preferred  Shares or  fraction  thereof  such that the
current per share market price of one Preferred Share  multiplied by such number
or  fraction  thereof  multiplied  by such  number or  fraction  is equal to the
current per share market price of one Common Share as of the date of issuance of
such  Preferred  Shares or  fraction  thereof;  provided,  however,  that if the
Company is further unable to cause the  authorization of a sufficient  number of
additional Common Shares,  then, in the event the Rights become so exchangeable,
the Board of  Directors  may, but shall not be required to, with respect to each
Right (A) pay cash in an amount  equal to the current per share  market price of
one  Common  Share  (determined  pursuant  to  Section  11(d) on the date of the
occurrence  of the event  described in Section  11(a)(ii))  in exchange for each
Right, in lieu of issuing Common Shares,  or (B) issue debt or equity securities
or a combination  thereof,  having a value equal to the current per share market
price of one Common Share  (determined  pursuant to Section 11(d) on the date of
the occurrence of the event described in Section  11(a)(ii))  where the value of
such  securities  shall be  determined  by a  nationally  recognized  investment
banking firm selected by the Board of Directors of the Company,  in exchange for
each Right,  or (C) deliver any  combination  of cash,  property,  Common Shares
and/or  other  securities  having a value equal to the current per share  market
price of one Common Share  (determined  pursuant to Section 11(d) on the date of
the occurrence of the event described in Section 11(2)(ii)) in exchange for each
Right. To the extent that the Company  determines that some action need be taken
pursuant to the second  sentence of this Section  24(c),  the Board of Directors
may temporarily  suspend the  exercisability of the Rights for a period of up to
45 days  following  the date on which the event  described in Section  11(a)(ii)
shall have occurred,  in order to seek any  authorization  of additional  Common
Shares and/or to decide the appropriate form of distribution to be made pursuant
to the above  provision and to determine the value thereof.  In the event of any
such suspension,  the Company shall issue a public announcement stating that the
exercisability of the Rights has been temporarily suspended.

         (D) The  Company  shall not be required  to issue  fractions  of Common
Shares or to distribute certificates which evidence fractional Common Shares. In
lieu of such fractional  Common Shares,  the Company shall pay to the registered
holders of the Right  Certificates  with regard to which such fractional  Common
Shares would  otherwise be issuable an amount in cash equal to the same fraction
of the current  market value of a whole Common  Share.  For the purposes of this
subsection  (d),  the current  market value of a whole Common Share shall be the
closing price of a Common Share (as determined  pursuant to the second  sentence
of Section  11(d)(i)  hereof) for the Trading Day immediately  after the date of
the first public  announcement by the Company that an exchange is to be effected
pursuant to this Section 24.

         (E) The Company  shall not be required to issue  fractions of Preferred
Shares (other than fractions which are integral  multiples of one  one-hundredth
of a Preferred Share) upon exchange of the Rights or to distribute  certificates
which  evidence  fractional  Preferred  Shares (other than  fractions  which are
integral  multiples of one  one-hundredth  of a Preferred  Share).  Fractions of
Preferred Shares in integral multiples of one one-hundredth of a Preferred Share
may, at the  election of the  Company,  be  evidenced  by  depositary  receipts;
provided,  however,  that holders of such depositary  receipts shall have all of
the rights,  privileges and preferences to which they are entitled as beneficial
owners of the Preferred Shares represented by such depositary receipts.  In lieu
of fractional Preferred Shares that are not integral multiples of one


                                       26.

<PAGE>

one-hundredth  of a Preferred  Share,  the Company  shall pay to the  registered
holders of Right  Certificates  at the time such Rights are  exercised as herein
provided  an amount in cash equal to the same  fraction  of the  current  market
value of one  Preferred  Share.  For the  purposes of this  Section  24(e),  the
current  market  value of a  Preferred  Share  shall be the  closing  price of a
Preferred  Share (as  determined  pursuant  to the  second  sentence  of Section
11(d)(i)  hereof) for the Trading  Day  immediately  after the date of the first
public  announcement by the Company that an exchange is to be effected  pursuant
to this Section 24.

         SECTION 25. NOTICE OF CERTAIN EVENTS.

         (A) In case the Company shall  propose (i) to pay any dividend  payable
in stock of any  class to the  holders  of its  Preferred  Shares or to make any
other  distribution to the holders of its Preferred Shares (other than a regular
quarterly cash dividend),  (ii) to offer to the holders of its Preferred  Shares
rights or warrants to  subscribe  for or to purchase  any  additional  Preferred
Shares  or  shares  of stock of any  class or any  other  securities,  rights or
options,  (iii) to effect any  reclassification  of its Preferred  Shares (other
than a reclassification  involving only the subdivision of outstanding Preferred
Shares),  (iv) to effect any  consolidation or merger into or with, or to effect
any sale or other  transfer  (or to permit  one or more of its  Subsidiaries  to
effect any sale or other transfer), in one or more transactions,  of 50% or more
of the assets or earning power of the Company and its  Subsidiaries  (taken as a
whole),  to any other  Person,  (v) to effect the  liquidation,  dissolution  or
winding up of the Company,  or (vi) to declare or pay any dividend on the Common
Shares  payable  in Common  Shares or to effect a  subdivision,  combination  or
consolidation  of the Common Shares (by  reclassification  or otherwise  than by
payment of dividends in Common  Shares),  then,  in each such case,  the Company
shall give to each holder of a Right Certificate,  in accordance with Section 26
hereof,  a notice of such proposed  action,  which shall specify the record date
for the purpose of such stock  dividend,  or distribution of rights or warrants,
or the  date  on  which  such  reclassification,  consolidation,  merger,  sale,
transfer, liquidation,  dissolution, or winding up is to take place and the date
of  participation  therein  by the  holders  of the  Common  Shares  and/or  the
Preferred  Shares,  if any such date is to be fixed, and such notice shall be so
given in the case of any action  covered by clause (i) or (ii) above at least 10
days prior to the record date for  determining  holders of the Preferred  Shares
for purposes of such action,  and in the case of any such other action, at least
10 days prior to the date of the taking of such  proposed  action or the date of
participation  therein by the holders of the Common  Shares and/or the Preferred
Shares, whichever shall be the earlier.

         (B) In case the event  set  forth in  Section  11(a)(ii)  hereof  shall
occur,  then the Company shall as soon as  practicable  thereafter  give to each
holder of a Right Certificate, in accordance with Section 26 hereof, a notice of
the  occurrence  of such event,  which notice  shall  describe the event and the
consequences of the event to holders of Rights under Section 11(a)(ii) hereof.

         SECTION 26. NOTICES. Notices or demands authorized by this Agreement to
be given or made by the Rights  Agent or by the holder of any Right  Certificate
to or on the Company shall be sufficiently  given or made if sent by first-class
mail, postage prepaid, addressed (until another address is filed in writing with
the Rights Agent) as follows:



                                       27.

<PAGE>


                           Zitel Corporation
                           47211 Bayside Parkway
                           Fremont, CA  94538-6517
                           Attention:  Henry C. Harris

Subject to the provisions of Section 21 hereof,  any notice or demand authorized
by this  Agreement  to be given or made by the  Company  or by the holder of any
Right Certificate to or on the Rights Agent shall be sufficiently  given or made
if sent by first-class mail,  postage prepaid,  addressed (until another address
is filed in writing with the Company) as follows:

                           AMERICAN STOCK TRANSFER & TRUST COMPANY
                           6210 15th Avenue
                           Brooklyn, NY  11219
                           Attention:  Joseph Wolf

Notices  or  demands  authorized  by this  Agreement  to be given or made by the
Company or the  Rights  Agent to the  holder of any Right  Certificate  shall be
sufficiently  given  or  made  if sent by  first-class  mail,  postage  prepaid,
addressed  to such holder at the address of such holder as shown on the registry
books of the Company.

         SECTION 27.  SUPPLEMENTS AND  AMENDMENTS.  The Company may from time to
time  supplement or amend this Agreement  without the approval of any holders of
Right Certificates in order to cure any ambiguity,  to correct or supplement any
provision contained herein which may be defective or inconsistent with any other
provisions  herein,  or to make any other  provisions with respect to the Rights
which the  Company may deem  necessary  or  desirable,  any such  supplement  or
amendment  to be  evidenced  by a writing  signed by the  Company and the Rights
Agent; provided, however, that from and after such time as any Person becomes an
Acquiring Person,  this Agreement shall not be amended in any manner which would
adversely  affect the interests of the holders of Rights.  Without  limiting the
foregoing,  the Company may at any time prior to such time as any Person becomes
an Acquiring  Person amend this  Agreement to lower the  thresholds set forth in
Sections  1(a) and 3(a) hereof from 15% to any  percentage  which is (i) greater
than the largest  percentage of the outstanding  Common Shares then known by the
Company to be  beneficially  owned by any Person  (other than the  Company,  any
Subsidiary  of the  Company,  any  employee  benefit  plan of the Company or any
Subsidiary,  or any entity holding Common Shares for or pursuant to the terms of
any such plan) and (ii) not less than 10%. Upon  delivery of a certificate  from
an appropriate  officer of the Company which states that the proposed supplement
or  amendment  is in  compliance  with the terms of this  Section 27, the Rights
Agent shall execute such  supplement or amendment  unless the Rights Agent shall
have  determined in good faith that such supplement or amendment would adversely
affect its interest under this Agreement.  Prior to the  Distribution  Date, the
interests of the holders of Rights shall be deemed coincident with the interests
of the holders of Common Shares.

         SECTION 28.  DETERMINATION AND ACTIONS BY THE BOARD OF DIRECTORS,  ETC.
For all  purposes of this  Agreement,  any  calculation  of the number of Common
Shares outstanding at any particular time, including for purposes of determining
the  particular  percentage  of such  outstanding  Common  Shares  or any  other
securities  of  which  any  Person  is the  Beneficial  Owner,  shall be made in
accordance with the last sentence of Rule 13d-3(d)(1)(i) of the General


                                       28.

<PAGE>

Rules and  Regulations  under the  Exchange Act as in effect on the date of this
Agreement.  The Board of Directors of the Company shall have the exclusive power
and authority to administer this Agreement and to exercise all rights and powers
specifically  granted to the Board,  or the  Company,  or as may be necessary or
advisable in the administration of this Agreement, including without limitation,
the right and power to (i) interpret the provisions of this Agreement,  and (ii)
make all determinations  deemed necessary or advisable for the administration of
this Agreement  (including a determination to redeem or not redeem the Rights or
to amend the Agreement).  All such actions,  calculations,  interpretations  and
determinations  (including, for purposes of clause (y) below, all omissions with
respect  to the  foregoing)  which are done or made by the Board in good  faith,
shall (x) be final,  conclusive  and binding on the Rights Agent and the holders
of the Right Certificates, and (y) not subject the Board to any liability to the
holders of the Right Certificates.

         SECTION  29.  SUCCESSORS.  All the  covenants  and  provisions  of this
Agreement  by or for the benefit of the  Company or the Rights  Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

         SECTION 30. BENEFITS OF THIS AGREEMENT. Nothing in this Agreement shall
be construed to give to any person or  corporation  other than the Company,  the
Rights Agent and the registered holders of the Right Certificates (and, prior to
the Distribution  Date, the Common Shares) any legal or equitable right,  remedy
or claim  under this  Agreement;  but this  Agreement  shall be for the sole and
exclusive benefit of the Company, the Rights Agent and the registered holders of
the Right Certificates (and, prior to the Distribution Date, the Common Shares).

         SECTION  31.  SEVERABILITY.   If  any  term,  provision,   covenant  or
restriction  of this Agreement is held by a court of competent  jurisdiction  or
other  authority  to be invalid,  void or  unenforceable,  the  remainder of the
terms, provisions,  covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated.

         SECTION 32.  GOVERNING LAW. This  Agreement and each Right  Certificate
issued  hereunder  shall be deemed to be a  contract  made under the laws of the
State of California  and for all purposes  shall be governed by and construed in
accordance  with the laws of such State  applicable  to contracts to be made and
performed entirely within such State.

         SECTION 33. COUNTERPARTS.  This Agreement may be executed in any number
of counterparts and each of such  counterparts  shall for all purposes be deemed
to be an original,  and all such counterparts shall together  constitute but one
and the same instrument.

         SECTION 34. DESCRIPTIVE  HEADINGS.  Descriptive headings of the several
Sections of this  Agreement  are  inserted  for  convenience  only and shall not
control or affect the meaning or construction of any of the provisions hereof.


                                       29.

<PAGE>

         IN WITNESS  WHEREOF,  parties  whereto have caused this Agreement to be
duly executed and their seals  attested,  all as of the day and year first above
written.

ATTEST:                                     ZITEL CORPORATION



By: /S/ HENRY C. HARRIS                     By:  /S/ JACK H. KING
- --------------------------------------      ------------------------------------
    Henry C. Harris                               Jack H. King
    Secretary                                     President



ATTEST:                                  AMERICAN STOCK TRANSFER & TRUST COMPANY


By: /S/ HERBERT J. LEMMER                   By:  /S/ JOSEPH WOLF
- --------------------------------------      ------------------------------------
Title:  VICE PRESIDENT                      Title: VICE PRESIDENT
- --------------------------------------      ------------------------------------



                                       30.

<PAGE>


                                    EXHIBIT A

                          CERTIFICATE OF DETERMINATION



<PAGE>

                          CERTIFICATE OF DETERMINATION

                                       OF

                  SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                                       OF

                                ZITEL CORPORATION

                         (Pursuant to Section 401 of the
                       California General Corporation Law)


         The undersigned, JACK H. KING and HENRY C. HARRIS hereby certify that:
         1.  They are the duly  elected  and  acting  President  and  Secretary,
respectively, of Zitel Corporation (the "Corporation").
         2.  Pursuant  to  authority  given  by the  Corporation's  Articles  of
Incorporation,  the Board of Directors of the  Corporation  has duly adopted the
following resolutions at a meeting duly called and held on June 12, 1996:

                  RESOLVED, that pursuant to the authority granted to and vested
         in the Board of Directors of the  Corporation  in  accordance  with the
         provisions  of its  Restated  Articles of  Incorporation,  the Board of
         Directors  hereby  creates a series of  Preferred  Stock,  without  par
         value,  of the Corporation and hereby states the designation and number
         of shares, and fixes the relative rights,  preferences,  privileges and
         restrictions  thereof (in addition to the  provisions  set forth in the
         Restated  Articles  of  Incorporation  of the  Corporation,  which  are
         applicable  to the  Preferred  Stock of all  classes  and  series),  as
         follows:

                  Series A Junior Participating Preferred Stock:

                           SECTION  1.  DESIGNATION  AND  AMOUNT.   One  Hundred
         Thousand  (100,000) shares of Preferred  Stock,  without par value, are
         designated  "Series A Junior  Participating  Preferred  Stock" with the
         rights, preferences,  privileges and restrictions specified herein (the
         "Junior  Preferred  Stock").  Such number of shares may be increased or
         decreased by resolution of the Board of  Directors;  provided,  that no
         decrease shall reduce the number of shares of Junior Preferred Stock to
         a number  less  than the  number of shares  then  outstanding  plus the
         number of shares reserved for issuance upon the exercise of outstanding
         options,


                                       1.

<PAGE>

         rights or warrants or upon the conversion of any outstanding securities
         issued by the Corporation convertible into Junior Preferred Stock.

                  SECTION 2.  DIVIDENDS AND DISTRIBUTIONS.

                  (A)  Subject to the rights of the holders of any shares of any
         series of  Preferred  Stock (or any similar  stock)  ranking  prior and
         superior to the Junior  Preferred Stock with respect to dividends,  the
         holders  of shares of Junior  Preferred  Stock,  in  preference  to the
         holders of Common Stock, without par value (the "Common Stock"), of the
         Corporation,  and of any  other  junior  stock,  shall be  entitled  to
         receive,  when,  as and if  declared by the Board of  Directors  out of
         funds legally available for the purpose, quarterly dividends payable in
         cash on the first day of March,  June,  September  and December in each
         year (each such date being referred to herein as a "Quarterly  Dividend
         Payment Date"), commencing on the first Quarterly Dividend Payment Date
         after the first  issuance  of a share or  fraction of a share of Junior
         Preferred  Stock,  in an amount per share (rounded to the nearest cent)
         equal to the greater of (a) $l.00 or (b) subject to the  provision  for
         adjustment  hereinafter  set forth,  100 times the  aggregate per share
         amount of all cash  dividends,  and 100 times the  aggregate  per share
         amount   (payable  in  kind)  of  all   non-cash   dividends  or  other
         distributions,  other than a dividend payable in shares of Common Stock
         or a  subdivision  of  the  outstanding  shares  of  Common  Stock  (by
         reclassification  or otherwise)  declared on the Common Stock since the
         immediately  preceding Quarterly Dividend Payment Date or, with respect
         to the first Quarterly  Dividend Payment Date, since the first issuance
         of any share or fraction of a share of Junior  Preferred  Stock. In the
         event the Corporation  shall at any time declare or pay any dividend on
         the  Common  Stock  payable  in  shares of  Common  Stock,  or effect a
         subdivision or combination or consolidation  of the outstanding  shares
         of Common Stock (by  reclassification or otherwise than by payment of a
         dividend in shares of Common  Stock) into a greater or lesser number of
         shares of  Common  Stock,  then in each  such case the  amount to which
         holders of shares of Junior  Preferred Stock were entitled  immediately
         prior to such event under clause (b) of the preceding sentence shall be
         adjusted by  multiplying  such amount by a fraction,  the  numerator of
         which is the number of shares of Common Stock  outstanding  immediately
         after such event and the  denominator  of which is the number of shares
         of Common Stock that were outstanding immediately prior to such event.

                  (B) The  Corporation  shall declare a dividend or distribution
         on the Junior  Preferred  Stock as  provided in  paragraph  (A) of this
         Section immediately after it declares a dividend or distribution on the
         Common Stock (other than a dividend payable in shares of Common Stock);
         provided that, in the event no dividend or distribution shall have been
         declared on the Common  Stock during the period  between any  Quarterly
         Dividend  Payment  Date  and the  next  subsequent  Quarterly  Dividend
         Payment  Date,  a dividend  of $1.00 per share on the Junior  Preferred
         Stock  shall  nevertheless  be  payable  on such  subsequent  Quarterly
         Dividend Payment Date.



                                       2.

<PAGE>

                  (C)  Dividends  shall  begin to accrue  and be  cumulative  on
         outstanding  shares  of  Junior  Preferred  Stock  from  the  Quarterly
         Dividend  Payment Date next preceding the date of issue of such shares,
         unless the date of issue of such shares is prior to the record date for
         the first Quarterly  Dividend  Payment Date, in which case dividends on
         such  shares  shall  begin  to  accrue  from  the date of issue of such
         shares,  or unless the date of issue is a  Quarterly  Dividend  Payment
         Date or is a date  after  the  record  date  for the  determination  of
         holders  of shares of Junior  Preferred  Stock  entitled  to  receive a
         quarterly  dividend and before such Quarterly Dividend Payment Date, in
         either of which  events  such  dividends  shall  begin to accrue and be
         cumulative  from such  Quarterly  Dividend  Payment  Date.  Accrued but
         unpaid dividends shall not bear interest.  Dividends paid on the shares
         of Junior  Preferred  Stock in an amount less than the total  amount of
         such  dividends at the time accrued and payable on such shares shall be
         allocated pro rata on a  share-by-share  basis among all such shares at
         the time outstanding.  The Board of Directors may fix a record date for
         the  determination  of  holders  of shares of  Junior  Preferred  Stock
         entitled  to receive  payment of a dividend  or  distribution  declared
         thereon,  which record date shall be not more than 60 days prior to the
         date fixed for the payment thereof.

                  SECTION  3.  VOTING  RIGHTS.  The  holders of shares of Junior
         Preferred Stock shall have the following voting rights:

                  (A) Subject to the provision for  adjustment  hereinafter  set
         forth,  each share of Junior  Preferred  Stock shall entitle the holder
         thereof  to  100  votes  on all  matters  submitted  to a  vote  of the
         shareholders of the Corporation.  In the event the Corporation shall at
         any time  declare or pay any  dividend on the Common  Stock  payable in
         shares of Common  Stock,  or effect a  subdivision  or  combination  or
         consolidation   of  the   outstanding   shares  of  Common   Stock  (by
         reclassification  or otherwise  than by payment of a dividend in shares
         of Common  Stock)  into a greater or lesser  number of shares of Common
         Stock,  then in each such  case the  number of votes per share to which
         holders of shares of Junior  Preferred Stock were entitled  immediately
         prior to such event shall be adjusted by  multiplying  such number by a
         fraction,  the  numerator  of which is the  number  of shares of Common
         Stock  outstanding  immediately after such event and the denominator of
         which is the  number of shares of Common  Stock  that were  outstanding
         immediately prior to such event.

                  (B)  Except  as  otherwise   provided  herein,  in  any  other
         Certificate  of  Determination  of  Preferences  creating  a series  of
         Preferred  Stock or any similar stock, or by law, the holders of shares
         of Junior Preferred Stock and the holders of shares of Common Stock and
         any other capital stock of the Corporation having general voting rights
         shall vote together as one class on all matters  submitted to a vote of
         shareholders of the Corporation.

                  (C) Except as set forth  herein,  or as otherwise  provided by
         law,  holders of Junior  Preferred  Stock shall have no special  voting
         rights and their


                                       3.

<PAGE>

         consent  shall not be required  (except to the extent they are entitled
         to vote with  holders of Common  Stock as set forth  herein) for taking
         any corporate action.

                  SECTION 4.  CERTAIN RESTRICTIONS.

                  (A)  Whenever  quarterly   dividends  or  other  dividends  or
         distributions  payable on the Junior  Preferred  Stock as  provided  in
         Section 2 are in arrears,  thereafter  and until all accrued and unpaid
         dividends  and  distributions,  whether or not  declared,  on shares of
         Junior  Preferred Stock  outstanding  shall have been paid in full, the
         Corporation shall not:

                           (I)  declare  or pay  dividends,  or make  any  other
         distributions,  on any  shares of stock  ranking  junior  (either as to
         dividends or upon liquidation, dissolution or winding up) to the Junior
         Preferred Stock;

                           (II)  declare  or pay  dividends,  or make any  other
         distributions, on any shares of stock ranking on a parity (either as to
         dividends  or upon  liquidation,  dissolution  or winding  up) with the
         Junior  Preferred  Stock,  except  dividends paid ratably on the Junior
         Preferred  Stock  and all such  parity  stock on  which  dividends  are
         payable or in arrears in  proportion  to the total amounts to which the
         holders of all such shares are then entitled;

                           (III)  redeem or  purchase or  otherwise  acquire for
         consideration  shares  of  any  stock  ranking  junior  (either  as  to
         dividends or upon liquidation, dissolution or winding up) to the Junior
         Preferred Stock,  provided that the Corporation may at any time redeem,
         purchase  or  otherwise  acquire  shares  of any such  junior  stock in
         exchange  for  shares of any stock of the  Corporation  ranking  junior
         (either as to dividends or upon dissolution, liquidation or winding up)
         to the Junior Preferred Stock; or

                           (IV)  redeem or  purchase  or  otherwise  acquire for
         consideration  any shares of Junior  Preferred  Stock, or any shares of
         stock ranking on a parity with the Junior  Preferred  Stock,  except in
         accordance  with a purchase offer made in writing or by publication (as
         determined  by the Board of  Directors)  to all  holders of such shares
         upon such terms as the Board of Directors,  after  consideration of the
         respective   annual  dividend  rates  and  other  relative  rights  and
         preferences of the respective  series and classes,  shall  determine in
         good  faith  will  result  in fair and  equitable  treatment  among the
         respective series or classes.

                  (B) The  Corporation  shall not permit any  subsidiary  of the
         Corporation  to purchase or  otherwise  acquire for  consideration  any
         shares of stock of the Corporation  unless the Corporation could, under
         paragraph  (A) of this Section 4,  purchase or  otherwise  acquire such
         shares at such time and in such manner.



                                       4.

<PAGE>

                  SECTION 5. REACQUIRED  SHARES.  Any shares of Junior Preferred
         Stock purchased or otherwise  acquired by the Corporation in any manner
         whatsoever   shall  be  retired  and  cancelled   promptly   after  the
         acquisition  thereof.  All such  shares  shall upon their  cancellation
         become  authorized  but unissued  shares of Preferred  Stock and may be
         reissued  as part of a new  series of  Preferred  Stock  subject to the
         conditions  and  restrictions  on  issuance  set forth  herein,  in the
         Restated  Articles of  Incorporation,  or in any other  Certificate  of
         Determination  of Preferences  creating a series of Preferred  Stock or
         any similar stock or as otherwise required by law.

                  SECTION 6.  LIQUIDATION,  DISSOLUTION  OR WINDING UP. Upon any
         liquidation,   dissolution  or  winding  up  of  the  Corporation,   no
         distribution  shall  be made  (1) to the  holders  of  shares  of stock
         ranking junior (either as to dividends or upon liquidation, dissolution
         or winding up) to the Junior Preferred Stock unless, prior thereto, the
         holders of shares of Junior  Preferred  Stock shall have  received  the
         greater  of: (A) $100 per share,  plus an amount  equal to accrued  and
         unpaid dividends and distributions thereon, whether or not declared, to
         the date of such payment; or (B) an aggregate amount per share, subject
         to the provision for  adjustment  hereinafter  set forth,  equal to 100
         times the aggregate  amount to be  distributed  per share to holders of
         shares  of  Common  Stock,  or (2) to the  holders  of  shares of stock
         ranking  on a  parity  (either  as to  dividends  or upon  liquidation,
         dissolution  or winding  up) with the Junior  Preferred  Stock,  except
         distributions  made ratably on the Junior  Preferred Stock and all such
         parity stock in proportion to the total amounts to which the holders of
         all such shares are  entitled  upon such  liquidation,  dissolution  or
         winding up. In the event the  Corporation  shall at any time declare or
         pay any dividend on the Common Stock payable in shares of Common Stock,
         or  effect  a  subdivision  or  combination  or  consolidation  of  the
         outstanding  shares of Common Stock (by  reclassification  or otherwise
         than by payment of a dividend in shares of Common Stock) into a greater
         or lesser number of shares of Common Stock,  then in each such case the
         aggregate  amount to which holders of shares of Junior  Preferred Stock
         were  entitled  immediately  prior to such event  under the  proviso in
         clause (1) of the preceding  sentence  shall be adjusted by multiplying
         such  amount by a  fraction  the  numerator  of which is the  number of
         shares of Common Stock outstanding immediately after such event and the
         denominator  of which is the number of shares of Common Stock that were
         outstanding immediately prior to such event.

                  SECTION 7. CONSOLIDATION, MERGER, ETC. In case the Corporation
         shall  enter  into  any  consolidation,  merger,  combination  or other
         transaction  in which the shares of Common Stock are  exchanged  for or
         changed into other stock or securities, cash and/or any other property,
         then in any such case each share of Junior Preferred Stock shall at the
         same time be  similarly  exchanged or changed into an amount per share,
         subject to the provision for adjustment hereinafter set forth, equal to
         100 times the aggregate  amount of stock,  securities,  cash and/or any
         other property (payable in kind), as the case may be, into which or for
         which each share of Common Stock is changed or exchanged.  In the event
         the  Corporation  shall at any time  declare or pay any dividend on the
         Common Stock


                                       5.

<PAGE>

         payable  in  shares  of  Common  Stock,  or  effect  a  subdivision  or
         combination or consolidation of the outstanding  shares of Common Stock
         (by  reclassification  or  otherwise  than by payment of a dividend  in
         shares of Common  Stock)  into a greater or lesser  number of shares of
         Common  Stock,  then in each  such  case the  amount  set  forth in the
         preceding  sentence with respect to the exchange or change of shares of
         Junior  Preferred Stock shall be adjusted by multiplying such amount by
         a fraction,  the  numerator  of which is the number of shares of Common
         Stock  outstanding  immediately after such event and the denominator of
         which is the  number of shares of Common  Stock  that were  outstanding
         immediately prior to such event.

                  SECTION 8. NO REDEMPTION. The shares of Junior Preferred Stock
         shall not be redeemable.

                  SECTION 9. RANK. The Junior  Preferred  Stock shall rank, with
         respect to the payment of  dividends  and the  distribution  of assets,
         junior to all other series of the Corporation's Preferred Stock.

                  SECTION 10. AMENDMENT.  The Restated Articles of Incorporation
         of the  Corporation  shall not be  amended in any  manner  which  would
         materially alter or change the powers, preferences or special rights of
         the Junior  Preferred Stock so as to affect them adversely  without the
         affirmative  vote  of  the  holders  of  at  least  two-thirds  of  the
         outstanding  shares of Junior  Preferred  Stock,  voting  together as a
         single class.

         3.  The  authorized  number  of  shares  of  Preferred  Stock  of  this
corporation  is  1,000,000,   and  the  number  of  shares  of  Preferred  Stock
constituting  Series A Junior Preferred Stock, none of which has been issued, is
100,000.



                                       6.

<PAGE>

         IN WITNESS  WHEREOF,  the undersigned have executed this certificate on
June __, 1996.

          
                                             -----------------------------------
                                             JACK H. KING
                                             President



                                            -----------------------------------
                                             HENRY C. HARRIS
                                             Secretary




         The undersigned Jack H. King, President of Zitel Corporation, and Henry
C. Harris,  Secretary  of said  corporation,  each  certifies  under  penalty of
perjury that the matters set forth in the foregoing Certificate of Determination
are true of their own knowledge.

         Executed at Fremont, California on June ___, 1996.



                                            -----------------------------------
                                            JACK H. KING
                                            President


         Executed at Fremont, California on June ___, 1996.



                                            -----------------------------------
                                             HENRY C. HARRIS
                                             Secretary




                                       7.

<PAGE>




                                    EXHIBIT B

                            FORM OF RIGHT CERTIFICATE



<PAGE>


                            FORM OF RIGHT CERTIFICATE


CERTIFICATE NO. R-                                                  _____ RIGHTS


         NOT EXERCISABLE AFTER JUNE 11, 2006 OR EARLIER IF REDEMPTION
         OR EXCHANGE OCCURS.  THE RIGHTS ARE SUBJECT TO REDEMPTION
         AT $.01 PER RIGHT AND TO EXCHANGE ON THE TERMS SET FORTH
         IN THE RIGHTS AGREEMENT.


                                RIGHT CERTIFICATE

                                ZITEL CORPORATION


         This certifies that _________________________ or registered assigns, is
the  registered  owner of the  number of Rights set forth  above,  each of which
entitles the owner thereof,  subject to the terms,  provisions and conditions of
the  Rights  Agreement,  dated as of June 12,  1996  (the  "Rights  Agreement"),
between  Zitel  Corporation,  a  California  corporation  (the  "Company"),  and
American Stock Transfer & Trust Company (the "Rights  Agent"),  to purchase from
the Company at any time after the Distribution  Date (as such term is defined in
the Rights Agreement) and prior to 5:00 P.M., New York Time, on June 11, 2006 at
the office of the Rights Agent designated for such purpose,  or at the office of
its successor as Rights Agent, one one-hundredth of a fully paid  non-assessable
share of Series A Junior  Participating  Preferred Stock, without par value (the
"Preferred  Shares"),  of the  Company,  at a  purchase  price  of  one  hundred
thirty-nine  dollars  ($139.00) per one  one-hundredth of a Preferred Share (the
"Purchase  Price"),  upon  presentation and surrender of this Right  Certificate
with the Form of  Election  to  Purchase  duly  executed.  The  number of Rights
evidenced by this Right  Certificate (and the number of one  one-hundredths of a
Preferred  Share which may be purchased  upon exercise  hereof) set forth above,
and the Purchase Price set forth above,  are the number and Purchase Price as of
_______________, based on the Preferred Shares as constituted at such date.

         As provided in the Rights Agreement,  the Purchase Price and the number
of one  one-hundredths  of a  Preferred  Share which may be  purchased  upon the
exercise  of the Rights  evidenced  by this  Right  Certificate  are  subject to
modification and adjustment upon the happening of certain events.

         This Right  Certificate is subject to all of the terms,  provisions and
conditions of the Rights  Agreement,  as amended from time to time, which terms,
provisions and conditions are hereby incorporated herein by reference and made a
part hereof and to which  Rights  Agreement  reference is hereby made for a full
description  of the  rights,  limitations  of  rights,  obligations,  duties and
immunities  hereunder  of the Rights  Agent,  the Company and the holders of the
Right Certificates.  Copies of the Rights Agreement are on file at the principal
executive offices of the Company and the  above-mentioned  offices of the Rights
Agent.

                                       1.

<PAGE>

         This Right Certificate, with or without other Right Certificates,  upon
surrender at the office of the Rights Agent designated for such purpose,  may be
exchanged for another Right Certificate or Right  Certificates of like tenor and
date evidencing  Rights entitling the holder to purchase a like aggregate number
of Preferred  Shares as the Rights  evidenced by the Right  Certificate or Right
Certificates  surrendered  shall have entitled such holder to purchase.  If this
Right  Certificate  shall be exercised in part,  the holder shall be entitled to
receive upon surrender  hereof another Right  Certificate or Right  Certificates
for the number of whole Rights not exercised.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this  Certificate (i) may be redeemed by the Company at a redemption price of
$.01 per Right or (ii) may be  exchanged  in whole or in part for  shares of the
Company's Common Stock or Preferred Shares, without par value.

         No fractional  Preferred Shares will be issued upon the exercise of any
Right or Rights  evidenced  hereby  (other  than  fractions  which are  integral
multiples of one one-hundredth of a Preferred Share,  which may, at the election
of the Company, be evidenced by depositary  receipts) but in lieu thereof a cash
payment will be made, as provided in the Rights Agreement.

         No  holder  of this  Right  Certificate  shall be  entitled  to vote or
receive  dividends  or be deemed for any  purpose  the  holder of the  Preferred
Shares  or of any  other  securities  of the  Company  which  may at any time be
issuable on the  exercise  hereof,  nor shall  anything  contained in the Rights
Agreement or herein be construed to confer upon the holder hereof,  as such, any
of the  rights  of a  shareholder  of the  Company  or any right to vote for the
election  of  directors  or upon any matter  submitted  to  shareholders  at any
meeting thereof,  or to give or withhold consent to any corporate  action, or to
receive notice of meetings or other actions  affecting  shareholders  (except as
provided  in the Rights  Agreement),  or to receive  dividends  or  subscription
rights,  or  otherwise,  until  the  Right or  Rights  evidenced  by this  Right
Certificate shall have been exercised as provided in the Rights Agreement.

         This Right Certificate shall not be valid or obligatory for any purpose
until it shall have been countersigned by the Rights Agent.


                                       2.

<PAGE>

         WITNESS the facsimile  signature of the proper  officers of the Company
and its corporate seal. Dated as of _______________, 1996.


ATTEST:                                     ZITEL CORPORATION



                                            By:
- --------------------------------------      ------------------------------------


Countersigned:


- --------------------------------------
as Rights Agent



By:
   -----------------------------------
         Authorized Signature



                                       3.

<PAGE>

                    Form of Reverse Side of Right Certificate


                               FORM OF ASSIGNMENT


                (To be executed by the registered holder if such
               holder desires to transfer the Right Certificate.)


         FOR VALUE RECEIVED ______________________________________ hereby sells,
assigns and transfers unto

- --------------------------------------------------------------------------------
                  (Please print name and address of transferee)

__________________________________________________________       this      Right
Certificate,  together  with all right,  title and  interest  therein,  and does
hereby irrevocably constitute and appoint ________________________  Attorney, to
transfer the within Right Certificate on the books of the within-named  Company,
with full power of substitution.


Dated:  ____________________


                                          --------------------------------------
                                          Signature


Signature Guaranteed:

         Signatures must be guaranteed by an "eligible guarantor institution" as
defined in Rule 17Ad-15  promulgated under the Securities  Exchange Act of 1934,
as amended.

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

         The  undersigned  hereby  certifies  that the Rights  evidenced by this
Right  Certificate  are not  beneficially  owned by an  Acquiring  Person  or an
Affiliate or Associate thereof (as defined in the Rights Agreement).


                                          --------------------------------------
                                          Signature


                                       1.

<PAGE>

             Form of Reverse Side of Right Certificate -- continued

                          FORM OF ELECTION TO PURCHASE

                  (To be executed if holder desires to exercise
                  Rights represented by the Right Certificate.)


To Zitel Corporation

         The    undersigned    hereby    irrevocably    elects    to    exercise
___________________________  Rights  represented  by this Right  Certificate  to
purchase  the  Preferred  Shares  issuable  upon the exercise of such Rights and
requests that certificates for such Preferred Shares be issued in the name of:

Please insert social security
or other identifying number: ______________


- --------------------------------------------------------------------------------
                         (Please print name and address)

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

If such  number of Rights  shall not be all the Rights  evidenced  by this Right
Certificate,  a new Right  Certificate for the balance  remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number: ______________


- --------------------------------------------------------------------------------
                         (Please print name and address)

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

Dated:  _________________



                                          --------------------------------------
                                          Signature





                                       1.

<PAGE>

             Form of Reverse Side of Right Certificate -- continued

Signature Guaranteed:

         Signatures must be guaranteed by an "eligible guarantor institution" as
defined in Rule 17Ad-15  promulgated under the Securities  Exchange Act of 1934,
as amended.

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

         The  undersigned  hereby  certifies  that the Rights  evidenced by this
Right  Certificate  are not  beneficially  owned by an  Acquiring  Person  or an
Affiliate or Associate thereof (as defined in the Rights Agreement)




                                          --------------------------------------
                                          Signature


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

                                     NOTICE

         The  signature  in the  Form  of  Assignment  or Form  of  Election  to
Purchase,  as the case may be, must conform to the name as written upon the face
of this Right Certificate in every particular, without alteration or enlargement
or any change whatsoever.

         In  the  event  the  certification  set  forth  above  in the  Form  of
Assignment  or the Form of  Election  to  Purchase,  as the case may be,  is not
completed,  the Company and the Rights Agent will deem the  beneficial  owner of
the Rights  evidenced by this Right  Certificate to be an Acquiring Person or an
Affiliate or  Associate  thereof (as defined in the Rights  Agreement)  and such
Assignment or Election to Purchase will not be honored.




                                       2.

<PAGE>



                                    Exhibit C

                 SUMMARY OF RIGHTS TO PURCHASE PREFERRED SHARES




<PAGE>

                                ZITEL RIGHTS PLAN

                                SUMMARY OF TERMS


         ISSUANCE:  One right to buy 1/100 of a share of a new  series of junior
participating  preferred stock,  without par value (the "Preferred  Stock"),  of
Zitel  Corporation  (the  "Company"),  issued as a dividend on each  outstanding
share of common stock,  without par value (the "Common Stock"),  of the Company.
Until the rights  become  exercisable,  all further  issuances of Common  Stock,
including  Common Stock  issuable upon exercise of  outstanding  options,  would
carry the rights.

         TERM:  The term is 10 years from date of declaration of the dividend.

         EXERCISE PRICE: The exercise price is one hundred  thirty-nine  dollars
($139.00) per 1/100 of a share of Preferred Stock. The exercise price is subject
to certain anti-dilution adjustments for stock splits, etc.

         RIGHTS  DETACH AND  BECOME  EXERCISABLE:  The rights  detach and become
exercisable  10 days  after such time as a person or group  acquires  beneficial
ownership of 15% or more of the Company's Common Stock or 10 business days after
such a time as a  person  or group  commences  or  announces  its  intention  to
commence a tender or exchange  offer the  consummation  of which would result in
beneficial  ownership  by such  person or group of 15% or more of the  Company's
Common Stock (the "Distribution  Date").  Prior to such time, the rights are not
exercisable and are not  transferable  apart from the Company's Common Stock. As
soon  as  practicable  after  the  rights  become  exercisable,  separate  right
certificates would be issued and the rights would become transferable apart from
the Company's Common Stock.  After such  detachment,  the rights would continue,
until a triggering  event as described below, to be exercisable for the purchase
of 1/100 of a share of the  Preferred  Stock per right at the exercise  price of
$139.00 per 1/100 of a share.

         PROTECTION AGAINST CREEPING  ACQUISITION/OPEN  MARKET PURCHASES: In the
event a person or group were to acquire a 15% or greater position in the Company
then,  unless redeemed as described  below,  each right then  outstanding  would
"flip in" and become a right to buy that number of shares of Common Stock of the
Company  obtained by dividing two times the  exercise  price of the right by the
then-current  market  price of the  Company's  Common  Stock.  The  acquirer who
triggered the rights would be excluded from the "flip-in." Thus, if the exercise
price were $100, as a result of the flip-in,  the rightholder  would be entitled
to purchase  shares of the Common Stock of the Company  having a market value of
$200 at an exercise price of $100. If the Company did not have sufficient shares
of authorized  Common Stock available for the complete exercise of the "flip-in"
rights,  the Company could satisfy its  obligations to rights holders by issuing
Preferred  Stock or cash,  debt,  stock or a combination  thereof.  This flip-in
right  would  terminate  60 days  after  the date on  which  the  rights  become
nonredeemable (as described  below),  unless there were an injunction or similar
obstacle  to exercise of the  rights,  in which event this  flip-in  right would
terminate 60 days after the rights again became exercisable.


                                       1.

<PAGE>

         EXCHANGE:  At any time  after the  acquisition  by a person or group of
affiliated or associated  persons of beneficial  ownership of 15% or more of the
outstanding  Common  Stock of the  Company  and until  such  person or group has
acquired  beneficial  ownership of 50% or more of the outstanding  Common Stock,
the Board of Directors could cause the exchange of the rights (other than rights
owned by the acquirer,  which have become void), in whole or in part, for shares
of Common Stock at an exchange ratio of one share of the Company's  Common Stock
for each right (or, if the number of shares is not and cannot be authorized, the
Company may issue 1/100 of a share of the Preferred Stock or cash,  debt,  stock
or a combination thereof in exchange for the rights), subject to adjustment.

         PROTECTION AGAINST  SQUEEZEOUT:  If, after the rights have detached and
become exercisable, an acquiring company were to merge or otherwise combine with
the  Company,  or the Company  were to sell 50% or more of its assets or earning
power,  each right then  outstanding  and not previously  exercised or exchanged
would "flip over" and thereby  would become a right to buy that number of shares
of common stock of the acquiring  company which at the time of such  transaction
would have a market value of two times the exercise price of the right. Thus, as
a result of the flip-over,  the rightholder would be entitled to purchase shares
of the  acquiring  company's  stock having a market value of $200 at an exercise
price of $100.

         REDEMPTION:  The  rights  are  redeemable  by the  Company's  Board  of
Directors  at a price of $.01 per right  (the  "Redemption  Price")  at any time
prior to the  earliest of (i) the close of business on the first day of a public
announcement  that a person or group has acquired  15% or more of the  Company's
Common Stock,  or (ii) the  expiration of the rights 10 years after  adoption of
the Rights Plan.  Following the expiration of these  periods,  the rights become
nonredeemable.

         TERMS  OF THE  PREFERRED  STOCK:  The  Preferred  Stock  issuable  upon
exercise  of the  rights  would be  nonredeemable  and rank  junior to any other
series of the Company's  Preferred Stock.  The dividend,  liquidation and voting
rights, and the nonredemption  features,  of the Preferred Stock are designed so
the value of the 1/100 interest in a share of Preferred Stock  purchasable  with
each right will  approximate the value of one share of Common Stock.  Each whole
share of  Preferred  Stock would be entitled to receive a  cumulative  quarterly
preferential  dividend of $1 per share but would be entitled to receive,  in the
aggregate, a dividend of 100 times the dividend declared on the Common Stock. In
the event of  liquidation,  the holders of the Preferred Stock would be entitled
to  receive a  preferential  liquidation  payment of $100 per share but would be
entitled to receive, in the aggregate,  a liquidation payment equal to 100 times
the payment made per share of Common Stock.  Each share of Preferred Stock would
have 100 votes, voting together with the Common Stock.  Finally, in the event of
any merger,  consolidation or other  transaction in which shares of Common Stock
are exchanged for or changed into other stock or  securities,  cash and/or other
property,  each share of Preferred  Stock would be entitled to receive 100 times
the  amount  received  per share of  Common  Stock.  The  foregoing  rights  are
protected  against dilution in the event  additional  shares of Common Stock are
issued.   Since  the   "out-of-the-money"   rights  would  not  be   exercisable
immediately,  registration  of the Preferred Stock issuable upon exercise of the
rights with the Securities and Exchange  Commission  need not be effective until
the rights  become  exercisable  and are "in the money" or are so close to being
"in the money" so as to make exercise economically reasonable.



                                       2.

<PAGE>

         VOTING:  The rights would not have any voting rights.

         AMENDMENT:  The rights  could be amended or  otherwise  modified by the
Board of  Directors  at any time  prior to the time a person  acquires  a 15% or
greater position in the Company.

         FEDERAL INCOME TAX CONSEQUENCES: The federal income tax consequences of
rights plans have not been directly  established by Congress or the courts,  and
the only revenue ruling issued by the Internal Revenue Service to date addresses
the adoption of a rights plan, but not any later tax consequences. The following
discussion of probable tax consequences is subject to changes in the law as well
as clarification and interpretation of existing law that may have retroactive as
well as prospective effect.

         Under  Revenue  Ruling  90-11,  the  adoption  of a rights plan and the
subsequent distribution of the rights to stockholders is not a taxable event for
the Company or its stockholders under the federal income tax laws.  Although not
addressed  in  the  revenue   ruling,   the  physical   distribution  of  rights
certificates upon the rights becoming exercisable should not result in any tax.

         After such physical distribution,  the rights would probably be treated
for tax purposes as capital  assets in the hands of most  stockholders  and each
right would  probably  have a basis of zero and a holding  period which  relates
back to the  holding  period of the stock  with  respect to which such right was
issued.  Upon the rights becoming rights to purchase an acquirer's common stock,
holders of rights probably would be taxed even if the rights were not exercised.
Upon the rights being redeemed for cash or the rights being  exchanged for stock
of the Company,  holders of the rights probably would have a taxable event. Upon
the rights becoming  rights to purchase Common Stock of the Company,  holders of
rights probably would not have a taxable event. The rights may have an impact on
tax-free  reorganizations  involving  the  Company.  Several  types of  tax-free
transactions  can still be  structured,  although  the  rights may be treated as
taxable "boot."

         ACCOUNTING  CONSEQUENCES:  The  initial  issuance  of the rights has no
accounting or financial reporting impact.  Since the rights would be "out of the
money"  when  issued,  they would not dilute  earnings  per share.  Because  the
redemption date of the rights is neither fixed nor determinable,  the accounting
guidelines  do not  require  the  redemption  amount  to be  accounted  for as a
long-term  obligation of the Company.  The rights do raise  certain  issues with
respect to  pooling-of-interests  transactions,  but several national accounting
firms have advised that the rights should not interfere with a company's ability
to  consummate  a pooling  transaction  so long as the  transaction  is properly
structured.

         MISCELLANEOUS:  The rights agreement would provide that the Company may
not  enter  into  any  transaction  of the  sort  enumerated  in the  squeezeout
provision if in connection  therewith there are outstanding  securities or there
are agreements or arrangements  intended to counteract the protective provisions
of the rights.  The rights  agreement  would provide for amendment  from time to
time in any manner  consistent with the Board's  purposes in adopting the rights
plan,  including  lowering the thresholds at which the rights become exercisable
or flip in from 15%


                                       3.

<PAGE>

to not  less  than  10%,  prior  to the  acquisition  by a  person  or  group of
beneficial ownership of 15% or more of the Company's Common Stock.





                                       4.

<PAGE>

                        [ON ZITEL CORPORATION LETTERHEAD]


                                 July ___, 1996



To Our Shareholders:

         Your Board of Directors has adopted a Preferred  Share Purchase  Rights
Plan under  which  ZITEL  CORPORATION  (the  "Company")  will issue  Rights with
respect to its Common Shares. We believe that this Plan will provide  protection
to the shareholders  from many of the takeover abuses prevalent today. The terms
of the  plan are set  forth  in a Rights  Agreement.  A  summary  of the  Rights
Agreement,  which you may wish to attach to your share certificate,  is included
with this letter.

         The Rights to be issued  under the Plan contain  provisions  to protect
shareholders  in the event of an  unsolicited  attempt to acquire  the  Company,
including  a gradual  accumulation  of shares in the open  market,  a partial or
two-tier  tender  offer  that  does  not  treat  all  shareholders   equally,  a
squeeze-out  merger and other abusive  takeover tactics which the Board believes
are not in the best interests of shareholders.  These tactics unfairly  pressure
shareholders,  squeeze them out of their investment without giving them any real
choice and  deprive  them of the full value of their  shares.  We  consider  the
Rights to be the best  available  means of protecting  both your right to retain
your equity  investment  in the  Company and the full value of that  investment,
while not foreclosing a fair acquisition bid for the Company.

         The Plan is not intended to protect management or to prevent a takeover
of the  Company  and will not do so.  However,  it should  deter any  attempt to
acquire  the  Company in a manner or on terms not  approved by the Board and, in
some  cases,  by the  shareholders.  The Plan is  designed to deal with the very
serious  problem of another  person or company using abusive  tactics to deprive
the Company's Board and  shareholders  of any real  opportunity to determine the
destiny of the Company.

         The Rights will trade automatically with shares of the Company's Common
Shares and are not  exercisable  except as  provided  in the  Rights  Agreement.
However,  as more fully  described in the Summary  attached to this letter,  ten
days after the  announcement  that a person or group has acquired 15% or more of
the Company's  shares, or ten business days after the announcement that a person
or group has commenced a tender offer the  consummation of which would result in
such  person or group  owning  15% or more of the shares  (even if no  purchases
actually occur), the Rights will become exercisable,  and separate  certificates
representing  the Rights will be  distributed.  We expect that the Rights  would
begin to trade  independently from the Company's shares at that time. At no time
will the Rights have any voting power.

         In adopting the Plan, we have expressed our continued confidence in the
future  and our  determination  that  you,  our  shareholders,  be  given  every
opportunity to participate fully in that future.

                                            On behalf of the Board of Directors,



                                            Jack H. King
                                            President





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