CROMPTON & KNOWLES CORP
8-A12B, 1999-09-28
INDUSTRIAL ORGANIC CHEMICALS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549

                                  _____________

                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR 12(g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934



                                CK Witco Corporation
                 -------------------------------------------------
               (Exact name of registrant as specified in its charter)


         Delaware                                                52-2183153
  --------------------------------------------                  -----------
    (State of Incorporation or Organization)                   (IRS Employer
                                                            Identification No.)

   One Station Place, Metro Center, Stamford, Connecticut             06902
  --------------------------------------------------------------------------
           (Address of principal executive offices)               (Zip Code)

      If this form relates to the                If this form relates to the
      registration of a class of                 registration of a class of
      securities  pursuant to                    securities pursuant to
      Section 12(b) of the Exchange              Section 12(g) of the Exchange
      Act and is effective pursuant              Act and is effective pursuant
      to General Instruction A.(c),              to General Instruction
      please check the following                 A.(d), please check
      box. [X]                                   the following box. [ ]



Securities Act registration statement file number to which this form relates:

                                                               ---------------
                                                               (If applicable)

          Title of Each Class                Name of Each Exchange on Which
          to be so Registered                Each Class is to be Registered
          -------------------                ------------------------------

       Preferred Stock Purchase Rights        New York Stock Exchange, Inc.


Securities to be registered pursuant to Section 12(g) of the Act:


- --------------------------------------------------------------------------------
                                (Title of Class)


<PAGE>



Item 1.  DESCRIPTION OF SECURITIES TO BE REGISTERED.


INTRODUCTION


     On September 1, 1999, the Board of Directors of CK Witco Corporation
Company (the "Company") declared a dividend of one preferred share purchase
right (a "Right") for each outstanding share of common stock, par value $0.01
per share, of the Company (the "Common Shares"). The dividend was payable on
September 11, 1999 (the "Record Date") to the stockholders of record on that
date. The description and terms of the Rights are set forth in an Agreement (the
"Agreement") between the Company and ChaseMellon Shareholder Services, L.L.C. as
Rights Agent (the "Rights Agent").

PURCHASE PRICE


     Each Right entitles the registered holder to purchase from the Company one
one-thousandth of a share of Series A Junior Participating Preferred Stock of
the Company par value $0.10 per share (the "Preferred Shares"), at a price of
$100.00 per one one-thousandth of a Preferred Share (the "Purchase Price"),
subject to adjustment.

FLIP-IN

     In the event that any person or group of affiliated or associated persons
acquires beneficial ownership of 15% or more of the outstanding Common Shares
(an "Acquiring Person"), each holder of a Right, other than Rights beneficially
owned by the Acquiring Person (which will thereafter be void), will thereafter
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.

FLIP-OVER

     If 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
after a person or group has become an Acquiring Person, each holder of a Right
(other than Rights beneficially owned by Acquiring Person, which will be void)
will thereafter have the right to receive 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.



                                       -2-
<PAGE>

DISTRIBUTION DATE

     The distribution date is the earlier of

     (i) 10 days following a public announcement that a person or group of
affiliated or associated persons have 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 of the Company prior to such time as any person or group
of affiliated persons 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 the outstanding Common Shares.

TRANSFER AND DETACHMENT

     Until 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 a copy of this Summary of Rights attached thereto.
Until the Distribution Date (or earlier redemption or expiration of the Rights),
the Rights will be transferred with and only with the Common Shares, and
transfer of those certificates will also constitute transfer of these Rights.

     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 thereafter
evidence the Rights.

EXERCISABILITY

     The Rights are not exercisable until the Distribution Date. The Rights will
expire on December 31, 2009 (the "Final Expiration Date"), unless the Final
Expiration Date is extended or unless the Rights are earlier redeemed or
exchanged by the Company, in each case, as described below.

ADJUSTMENTS

     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 in the event of stock
dividends, stock splits, reclassifications, or certain distributions with
respect to the Preference Stock. The number of outstanding Rights and the number
of one one-thousandths of a Preferred Share issuable upon exercise of each Right
are also subject to adjustment if, prior to the Distribution Date, there is a
stock split of the Common Shares or a stock dividend on the Common Shares
payable in Common Shares or subdivisions, consolidations or combinations of the
Common Shares. With certain ex-



                                       -3-
<PAGE>


ceptions, 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 one one-thousandth of a Preferred Share, which may, at the
election 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.

PREFERRED SHARES

     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 per share but will be entitled to an aggregate
dividend of 1000 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 $1000 per share but will be entitled to an
aggregate payment of 1000 times the payment made per Common Share. Each
Preferred Share will have 1000 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
1000 times the amount received per Common Share. These rights are protected by
customary antidilution provisions.

     The value of the one one-thousandth interest in a Preferred Share
purchasable upon exercise of each Right should, because of the nature of the
Preferred Shares' dividend, liquidation and voting rights, approximate the value
of one Common Share.

EXCHANGE

     At any time after any person or group becomes an Acquiring Person, 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 the Acquiring Person, which will have
become void), in whole or in part, at an exchange ratio of one Common Share, or
one one-thousandth of a Preferred Share (subject to adjustment) per Right.

REDEMPTION

     At any time prior to any person or group becoming an Acquiring Person, 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"). The redemption of
the Rights may be made effective at such time on such basis with such conditions
as the Board of Directors in its sole discretion may establish. 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.



                                       -4-
<PAGE>



AMENDMENTS

     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 certain thresholds described above to not less than the greater of (i)
the sum of .001% and the largest percentage of the outstanding Common Shares
then known to the Company to be beneficially owned by any person or group of
affiliated or associated persons and (ii) 10%, except that from and after such
time as any person or group of affiliated or associated persons becomes an
Acquiring Person no such amendment may adversely affect the interests of the
holders of the Rights.

RIGHTS AND HOLDERS

     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.

FURTHER INFORMATION

     A copy of the Agreement is available free of charge from the Company. This
summary description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Agreement, which is hereby
incorporated herein by reference.


                                      -5-


<PAGE>



Item 2  EXHIBITS.


        EXHIBIT     DESCRIPTION
        NO.

        4.1         Rights Agreement, dated as of September 2, 1999, between
                    the Company and ChaseMellon Shareholder Services, L.L.C.
                    which includes the form of Certificate of Amendment to the
                    Certificate of Incorporation setting forth the terms of the
                    Series A Preferred Stock as Exhibit A, Right Certificate as
                    Exhibit B and the Summary of Rights to Purchase Preferred
                    Shares as Exhibit C.


                                      -6-


<PAGE>




                                   SIGNATURES


     Pursuant to the requirements of Section 12 of the Securities Exchange Act
of 1934, the Registrant has duly caused this registration statement to be signed
by the undersigned, thereunto duly authorized.


                                  CK WITCO CORPORATION
                                  --------------------
                                       (Registrant)


                                  By   /s/ John T. Ferguson II
                                      ----------------------------
                                      Name:  John T. Ferguson II
                                      Title: Senior Vice President, General
                                             Counsel and Secretary



Dated:  September 28, 1999


                                      -7-


<PAGE>


                              CK WITCO CORPORATION

                       Registration Statement on Form 8-A

                                  EXHIBIT INDEX


         EXHIBIT    DESCRIPTION
         NO.

         4.1        Rights Agreement, dated as of September 2, 1999, between
                    the Company and ChaseMellon Shareholder Services, L.L.C.
                    which includes the form of Certificate of Amendment to the
                    Certificate of Incorporation setting forth the terms of the
                    Series A Preferred Stock as Exhibit A, Right Certificate as
                    Exhibit B and the Summary of Rights to Purchase Preferred
                    Shares as Exhibit C.



                                       -8-


                                                                     EXHIBIT 4.1







                                Rights Agreement

                                 BY AND BETWEEN

                              CK Witco Corporation

                                       AND

                    ChaseMellon Shareholder Services, L.L.C.

                          Dated as of September 2, 1999



<PAGE>




                                TABLE OF CONTENTS

                                                                     Page
                                                                    NUMBER

Section 1.  Definitions..........................................      1

Section 2.  Appointment of Rights Agent..........................      6

Section 3.  Issue of Right Certificates..........................      7

Section 4.  Form of Right Certificates...........................      9

Section 5.  Countersignature and Registration....................     10

Section 6.  Transfer, Split Up, Combination and Exchange
            of Right Certificates; Mutilated, Destroyed,
            Lost or Stolen Right Certificates....................     11

Section 7.  Exercise of Rights; Purchase Price; Expiration
            Date of Rights.......................................     12

Section 8.  Cancellation and Destruction of Right Certificates...     14

Section 9.  Availability of Preferred Shares.....................     15

Section 10. Preferred Shares Record Date.........................     15

Section 11. Adjustment of Purchase Price, Number of Shares or
            Number of Rights.....................................     16

Section 12. Certificate of Adjusted Purchase Price or Number
            of Shares............................................     27

Section 13. Consolidation, Merger or Sale or Transfer of Assets
            or Earning Power.....................................     27

Section 14. Fractional Rights and Fractional Shares..............     29

Section 15. Rights of Action.....................................     31

Section 16. Agreement of Right Holders...........................     32

Section 17. Right Certificate Holder Not Deemed a Stockholder....     32

                                       -ii-
<PAGE>

Section 18. Concerning the Rights Agent..........................     33

Section 19. Merger or Consolidation or Change of Name of Rights
            Agent................................................     34

Section 20. Duties of Rights Agent...............................     35

Section 21. Change of Rights Agent...............................     38

Section 22. Issuance of New Right Certificates...................     40

Section 23. Redemption...........................................     40

Section 24. Exchange.............................................     41

Section 25. Notice of Certain Events.............................     43

Section 26. Notices..............................................     45

Section 27. Supplements and Amendments...........................     45

Section 28. Successors...........................................     46

Section 29. Benefits of this Agreement...........................     46

Section 30. Severability.........................................     47

Section 31. Governing Law........................................     47

Section 32. Counterparts.........................................     47

Section 33. Descriptive Headings.................................     47

Signatures.......................................................     48



Exhibit A   -    Form of Certificate of Designations

Exhibit B   -    Form of Right Certificate

Exhibit C   -    Summary of Rights to Purchase Preferred Shares



                                       -iii-
<PAGE>

            Agreement, dated as of September 2, 1999, between CK Witco

Corporation, a Delaware corporation (the "COMPANY"), and ChaseMellon Shareholder

Services, L.L.C., as rights agent (the "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 on September 11, 1999 (the

"RECORD DATE"), each Right representing the right to purchase one one-thousandth

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.  DEFINITIONS. For purposes of this Agreement, the

following terms have the meanings indicated:


            (a) "ACQUIRING PERSON" shall mean any Person who or which, together

with all Affiliates and Associates of such Person, shall be the Beneficial

Owner of 15% or more of the Common Shares of the Company then outstanding, but

shall not include the Company, any Subsidiary 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


<PAGE>

acquisition of Common Shares by the Company which, by reducing the number of

Common Shares of the Company outstanding, increases the proportionate number of

Common Shares of the Company 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 Board of

Directors of the Company 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.


          (b) "AFFILIATE" shall have the meaning ascribed to such term in Rule

12b-2 of the General Rules and Regulations under the Exchange Act as in effect

on the date of this Agreement.


          (c) "ASSOCIATE" shall have the meaning ascribed to such term in Rule

12b-2 of the General Rules and Regulations under the Exchange Act as in effect

on the date of this Agreement.


                                       -2-
<PAGE>

          (d) 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


                                       -3-
<PAGE>

            (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(d)(ii)(B) hereof) 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.


          (e) "BUSINESS DAY" shall mean any day other than a Saturday, a

Sunday, or a day on which banking institutions in the State of Pennsylvania

are authorized or obligated by law or executive order to close.


          (f) "CLOSE OF BUSINESS" on any given date shall mean 5:00 P.M., New

York City time, on such date; PROVIDED, HOWEVER, that, if such date is not a

Business Day, it shall mean 5:00 P.M., New York City time, on the next

succeeding Business Day.


          (g) "COMMON SHARES" when used with reference to the Company shall

mean the shares of common stock, par value $0.01 per share, of the Company.

"Common Shares" when used with reference to any Person other than the Company

shall mean the capital stock (or


                                       -4-
<PAGE>

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(a) hereof.


          (i) "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934,

as amended.


          (j) "EXCHANGE RATIO" shall have the meaning set forth in Section

24(a) hereof.


          (k) "FINAL EXPIRATION DATE" shall have the meaning set forth in

Section 7(a) hereof.


          (l) "NASDAQ" shall mean the National Association of Securities

Dealers, Inc. Automated Quotation System.


          (m) "PERSON" shall mean any individual, firm, corporation,

partnership, limited liability company or other entity, and shall include any

successor (by merger or otherwise) of such entity.


          (n) "PREFERRED SHARES" shall mean shares of Series A Junior

Participating Preferred Stock, par value $0.10 per share, of the Company having

the rights and preferences set forth in the Form of Certificate of Designations

attached to this Agreement as Exhibit A.


          (o) "PURCHASE PRICE" shall have the meaning set forth in Section 4

hereof.


                                       -5-
<PAGE>

          (p) "RECORD DATE" shall have the meaning set forth in the second

paragraph hereof.


          (q) "REDEMPTION DATE" shall have the meaning set forth in Section

7(a) hereof.


          (r) "REDEMPTION PRICE" shall have the meaning set forth in Section

23(a) hereof.


          (s) "RIGHT" shall have the meaning set forth in the second paragraph

hereof.


          (t) "RIGHT CERTIFICATE" shall have the meaning set forth in

Section 3(a) hereof.


          (u) "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.


          (v) "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.


          (w) "SUMMARY OF RIGHTS" shall have the meaning set forth in Section

3(b) hereof.


          (x) "TRADING DAY" shall have the meaning set forth in Section 11(d)

hereof.

          Section 2.  APPOINTMENT OF RIGHTS AGENT. The Company hereby appoints

the Rights Agent to act as agent for the Company in accordance with the terms

and conditions

                                       -6-
<PAGE>

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 of

the Company prior to such time as any Person becomes an Acquiring Person) after

the date of the commencement 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 of the Company 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 of the Company 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 of the Company aggregating 15% or more of the

then outstanding Common Shares of the Company (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 (subject to the provisions of Section 3(b) hereof)

by the certificates for Common Shares of the Company 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 right to

receive Right Certificates will be transferable only in connection with the

transfer of Common Shares of the Company. The Company must promptly notify the

Rights Agent of the occurrence of a Distribution Date and request the transfer

agent to

                                       -7-
<PAGE>

provide a shareholders list. As soon as practicable after a Distribution Date

occurs and the Rights Agent receives such notice and list, 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 of the Company 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.


            (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 of

the Company 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 together with a copy of the Summary of Rights attached thereto.

Until the Distribution Date (or the earlier of the Redemption Date or the Final

Expiration Date), the surrender for transfer of any certificate for Common

Shares of the Company outstanding on the Record Date, with or without a copy of

the Summary of Rights attached thereto, shall also constitute the transfer of

the Rights associated with the Common Shares of the Company represented thereby.


                                       -8-
<PAGE>

          (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 an Agreement between CK Witco Corporation and
     ChaseMellon Shareholder Services, L.L.C., dated as of September 2, 1999, as
     it may be amended from time to time (the "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 CK Witco Corporation. Under certain
     circumstances, as set forth in the Agreement, such Rights (as defined in
     the Agreement) will be evidenced by separate certificates and will no
     longer be evidenced by this certificate. CK Witco Corporation will mail to
     the holder of this certificate a copy of the Agreement without charge after
     receipt of a written request therefor. As set forth in the Agreement,
     Rights beneficially owned by any Person (as defined in the Agreement) who
     becomes an Acquiring Person (as defined in the Agreement) become null and
     void.

With respect to such certificates containing the foregoing legend, until the

Distribution Date, the Rights associated with the Common Shares of the Company

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 of the Company

represented thereby. In the event that the Company purchases or acquires any

Common Shares of the Company after the Record Date but prior to the Distribution

Date, any Rights associated with such Common Shares of the Company shall be

deemed cancelled and retired so that the Company shall not be entitled to

exercise any Rights associated with the Common Shares of the Company which are

no longer outstanding.


          Section 4. FORM OF RIGHT CERTIFICATES. The Right Certificates (and the

forms of election to purchase Preferred Shares and of assignment to be printed

on the reverse thereof)

                                       -9-
<PAGE>

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 which do not affect the

duties or responsibilities of the Rights Agent and as are not inconsistent with

the provisions of this Agreement, or as may be required to comply with any

applicable law or with any applicable rule or regulation made pursuant thereto

or with any applicable rule or regulation of any stock exchange or the National

Association of Securities Dealers, Inc., 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-thousandths of a Preferred

Share as shall be set forth therein at the price per one one-thousandth of a

Preferred Share set forth therein (the "PURCHASE PRICE"), but the number of such

one one-thousandths 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, any of its Vice Presidents or its

Treasurer, 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 individual who signed such Right Certifi-

                                       -10-
<PAGE>

cates had not ceased to be such officer of the Company; and any Right

Certificate may be signed on behalf of the Company by any individual 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 Agreement any such individual was not such an officer.


          Following the Distribution Date and receipt by the Rights Agent of the

notice and list of record holders of Rights referred to in Section 3(a), the

Rights Agent will keep or cause to be kept, at its office designated pursuant to

Section 26 hereof, 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-thousandths

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

                                       -11-
<PAGE>

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. 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 governmental charge that may be imposed in

connection with any transfer, split up, combination or exchange of Right

Certificates. The Rights Agent shall not be required to process the transaction

until it receives evidence that all taxes and charges with respect to the Rights

have been paid by the Company.


            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 make and deliver a new

Right Certificate of like tenor to the Rights Agent for 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, together

with payment of the Purchase Price for each one one-thousandth of a Preferred

Share as to which the

                                       -12-
<PAGE>

Rights are exercised, at or prior to the earliest of (i) the Close of Business

on December 31, 2009 (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-thousandth of a Preferred

Share purchasable pursuant to the exercise of a Right shall initially be $100,

and shall be subject to adjustment from time to time as provided in Section 11

or 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 tax or governmental charge required to be paid by the holder

of such Right Certificate in accordance with Section 9 hereof by certified

check, cashier's check or money order payable to the order of the Company, the

Rights Agent shall thereupon promptly (i) (A) requisition from any transfer

agent of the Preferred Shares certificates for the number of Preferred Shares to

be purchased and the Company hereby irrevocably authorizes any such transfer

agent to comply with all such requests, or (B) requisition from the depositary

agent depositary receipts representing such number of one one-thousandths 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 of the Preferred Shares with such depositary agent) and the Company hereby

directs such depositary agent to comply with such request; (ii) if and when

necessary or appropriate to comply with this Agreement, requisition from the

Company the amount of cash to be paid in lieu of issuance of fractional shares

in

                                       -13-
<PAGE>

accordance with Section 14 hereof; (iii) promptly 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; and (iv) if and when

necessary or appropriate to comply with this Agreement, after receipt, promptly

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 less 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 registered holder of such Right Certificate or to such

holder's duly authorized assigns, subject to the provisions of Section 6 and

Section 14 hereof.


          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 cancelled form,

or, if surrendered to the Rights Agent, shall be cancelled by it, and no Right

Certificates shall be issued in lieu thereof except as expressly permitted by

any of the provisions of this 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

cancelled Right Certificates to the Company, or shall, at the written request of

the Company, destroy such cancelled Right Certificates, and, in such case, shall

deliver a certificate of destruction thereof to the Company.

                                       -14-
<PAGE>

          Section 9.  AVAILABILITY OF PREFERRED SHARES. 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 Section 7 hereof.

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 taxes and governmental 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 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 is issued upon the exercise of Rights

shall for all purposes be deemed to have become the holder of record of the

Preferred Shares represented thereby on, and

                                       -15-
<PAGE>

such certificate shall be dated, the date upon which the Right Certificate

evidencing such Rights was duly surrendered and payment of the Purchase Price

(and any applicable taxes and governmental charges) was made; PROVIDED, HOWEVER,

that, if the date of such surrender and payment is a date upon which the

Preferred Shares 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

transfer books of the Company are open. Prior to the exercise of the Rights

evidenced thereby, the holder of a Right Certificate 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

                                       -16-
<PAGE>

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.


            (ii)  Subject to Section 24 hereof, in the event any Person becomes

an Acquiring Person, each holder of a Right shall thereafter 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-thousandths 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-thousandths 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 Common Shares of the Company

(determined pursuant to Section 11(d) hereof) on the date of the occurrence of

such event. 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.


                                       -17-
<PAGE>

            From and after the occurrence of such event, any Rights that are or

were acquired or beneficially owned by any Acquiring Person (or any Associate or

Affiliate of such Acquiring Person) shall be void, and any holder of such Rights

shall thereafter have no right to exercise such Rights under any provision of

this Agreement. No Right Certificate shall be issued pursuant to Section 3

hereof that represents Rights beneficially owned by an Acquiring Person whose

Rights would be void pursuant to the preceding sentence or any Associate or

Affiliate thereof; 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

cancelled.


          (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 subparagraph (ii) above, 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 the Company shall, after

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 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.


                                       -18-
<PAGE>

          (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 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 and shall be binding on the

                                       -19-
<PAGE>

Rights Agent and holders of the Rights. 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 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 and shall be binding on the Rights Agent

and holders of the Rights) 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

then-current per share market price of the Preferred Shares on such record date;

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;


                                       -20-
<PAGE>

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

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 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 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, 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

                                       -21-
<PAGE>

market, as reported by 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)

hereof (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

                                       -22-
<PAGE>

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) hereof, inclusive, and

the provisions of Sections 7, 9, 10 and 13 hereof 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-thousandths 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) hereof, upon each adjustment of the Purchase Price as a result

of the calculations made in Sections 11(b) and (c) hereof, 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-thousandths of a Preferred Share (calculated to the nearest one

one-millionth

                                       -23-
<PAGE>

of a Preferred Share) obtained by (A) multiplying (x) the number of one

one-thousandths of a 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 (B) 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-thousandths 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-thousandths 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 and shall concurrently send

written notice to the Rights Agent concerning such adjustment. 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

                                       -24-
<PAGE>

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

in the number of one one-thousandths 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 number of one one-thousandths

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-thousandth 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 Com-

                                       -25-
<PAGE>

pany, if any, issuable upon such exercise over and above 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.

The Company shall promptly notify the Rights Agent of any such adjustment in the

Purchase Price pursuant to this Section 11(l).


          (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 in Section 11(b) hereof, hereafter made by the Company to

holders of the Preferred Shares shall not be taxable to such stockholders.


          (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-thousandths of a Preferred Share purchasable after such

event upon proper exer-

                                       -26-
<PAGE>

cise of each Right shall be determined by multiplying the number of one

one-thousandths 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 Section 11 or 13 hereof,

the Company shall promptly (a) prepare a certificate setting forth such

adjustment and a brief, reasonably detailed statement of the facts, computations

and methodology accounting for such adjustment, (b) file with the Rights Agent

and with each transfer agent for the Common Shares or the Preferred Shares and

the Securities and Exchange Commission a copy of such certificate and (c) if

such adjustment occurs at any time after the Distribution Date, mail a brief

summary thereof to each holder of a Right Certificate in accordance with Section

25 hereof.


          Section 13.  CONSOLIDATION, MERGER OR SALE OR TRANSFER OF ASSETS OR

EARNING POWER. In the event, directly or indirectly, at any time after a Person

has become an Acquiring Person, (a) the Company shall consolidate with, or merge

with and into, any other Person, (b) 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 and, in connection

                                       -27-
<PAGE>

with such merger, all or part of the Common Shares shall be changed into or

exchanged for stock or other securities of any other Person (or the Company) or

cash or any other property, or (c) the Company shall sell or otherwise transfer

(or one or more of its Subsidiaries shall sell or otherwise transfer), in one or

more transactions, assets or earning power aggregating 50% or more of the assets

or earning power of the Company and its Subsidiaries (taken as a whole) to any

other Person other than the Company or one or more of its wholly-owned

Subsidiaries, then, and in each such case, proper provision shall be made so

that (i) each holder of a Right (except as otherwise provided herein) shall

thereafter 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

one-thousandths 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 such other Person (including the Company as

successor thereto or as the surviving corporation) as shall equal the result

obtained by (A) multiplying the then current Purchase Price by the number of one

one-thousandths 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 Common Shares of such other Person (determined pursuant to Section 11(d)

hereof) on the date of consummation of such consolidation, merger, sale or

transfer; (ii) the issuer of such Common Shares 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 issuer; and (iv) such

issuer shall take such steps (including, but not limited to, the reservation of

a sufficient number 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 the

                                       -28-
<PAGE>

Common Shares of the Company thereafter deliverable upon the exercise of the

Rights. The Company shall not consummate any such consolidation, merger, sale or

transfer unless, prior thereto, the Company and such issuer shall have executed

and delivered to the Rights Agent a supplemental agreement so providing. The

Company shall not enter into any transaction of the kind referred to in this

Section 13 if at the time of such transaction there are any rights, warrants,

instruments or securities outstanding or any agreements or arrangements which,

as a result of the consummation of such transaction, would eliminate or

substantially diminish the benefits intended to be afforded by the Rights. The

provisions of this Section 13 shall similarly apply to successive mergers or

consolidations or sales or other transfers.


          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

                                       -29-
<PAGE>

listed on the principal national securities exchange on which the Rights are

listed or admitted to trading 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.


            (b) The Company shall not be required to issue fractions of

Preferred Shares (other than fractions which are integral multiples of one

one-thousandth 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-thousandth of a Preferred

Share). Fractions of Preferred Shares in integral multiples of one

one-thousandth of a Preferred Share may, at the election of the Company, be

evidenced by depositary receipts, pursuant to an appropriate agreement between

the Company and a depositary selected by it; PROVIDED that such agreement shall

provide that the holders of such depositary receipts shall have all 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-thousandth 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.

                                       -30-
<PAGE>

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 such holder's 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

Section 18 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 such holder's own behalf and

for such holder's own benefit, enforce, and may institute and maintain any suit,

action or proceeding against the Company to enforce, or otherwise act in respect

of, such holder's 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.

                                       -31-
<PAGE>


          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;


          (b) after the Distribution Date, the Right Certificates are

transferable only on the registry books of the Rights Agent if surrendered at

the 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 Certificate 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 STOCKHOLDER. 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 stockholder of the Company or any

right to vote for the

                                       -32-
<PAGE>

election of directors or upon any matter submitted to stockholders at any

meeting thereof, or to give or withhold consent to any corporate action, or to

receive notice of meetings or other actions affecting stockholders (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 preparation,

delivery, amendment, 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, damage, judgment, ruling (interlocutory or final), fine, penalty,

claim, demand, settlement, cost or expense incurred without gross negligence,

bad faith or willful misconduct on the part of the Rights Agent, for any action

taken, suffered or omitted by the Rights Agent in connection with the acceptance

and administration of this Agreement, including, without limitation, the costs

and expenses of defending against any claim of liability in the premises. The

indemnity provided herein shall survive the termination of this Agreement and

the termination and the expiration of the Rights. The reasonable costs and

expenses incurred in enforcing this right of indemnification shall be paid by

the Company. Anything to the contrary notwithstanding, in no event shall the

Rights Agent be liable for special, punitive, indirect, consequential or

incidental loss or damage of any kind whatsoever (including but not limited to

lost profits), even if the Rights Agent has been advised of the likelihood of

such loss or damage. Any liability of the Rights Agent under

                                       -33-
<PAGE>

this Rights Agreement will be limited to the amount of fees paid by the Company

to the Rights Agent.


            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, the acceptance and 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. The Rights Agent shall be fully protected in relying

on any such certificate and on any adjustment therein contained. The Rights

Agent is not deemed to have notice unless the Company has given the Rights Agent

notice.


          Section 19.  MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS

AGENT. Any Person into which the Rights Agent or any successor Rights Agent

may be merged or with which it may be consolidated, or any Person resulting

from any merger or consolidation to which the Rights Agent or any successor

Rights Agent shall be a party, or any Person succeeding to the stock transfer

powers or shareholder services 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 Person 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,

                                       -34-
<PAGE>

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 expressly 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 (who may be legal

counsel for the Company), and the advice or opinion of such counsel shall be

full and complete authorization and protection to the Rights Agent and the

Rights Agent shall incur no liability for,

                                       -35-
<PAGE>

or in respect of, any action taken, suffered or omitted by it in good faith and

in accordance with such advice or 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, suffering or omitting 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, any Vice President, the Treasurer or the

Secretary of the Company and delivered to the Rights Agent; and such certificate

shall be full authorization and protection to the Rights Agent and the Rights

Agent shall incur no liability for, or in respect of, any action taken, suffered

or omitted 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 gross 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 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 liability or

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 Certifi-

                                       -36-
<PAGE>

cate (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 hereof, 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 actual notice that such change or

adjustment is required); 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,

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

such instructions shall be full authorization and protection to the Rights Agent

and the Rights Agent shall incur no liability for or in respect of any action

taken, suffered or omitted

                                       -37-
<PAGE>

by it in good faith in accordance with instructions of any such officer or for

any delay in acting while waiting for those instructions. The Rights Agent may

conclusively rely on the most recent instruction given by any such officer.


          (h) The Rights Agent and any stockholder, affiliate, 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 Person

or legal entity.


          (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 absent gross negligence, bad faith, or willful misconduct

in the selection and continued employment thereof.


          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

of 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

                                       -38-
<PAGE>

case may be, and to each transfer agent of 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 (which holder

shall, with such notice, submit such holder's 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 Person organized and doing business under the laws of the

United States or of the State of Pennsylvania (or of any other state of the

United States so long as such Person is authorized to do business as a banking

institution in the State of Pennsylvania), in good standing, having an office in

the State of Pennsylvania, which 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 of the Common Shares or

Preferred Shares, and mail a notice thereof in writing to the registered holders

of the Right Certificates.

                                       -39-
<PAGE>

Failure 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 the Board of Directors of the Company 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 Board of Directors of the Company

may, at its option, at any time prior to such time as any Person becomes an

Acquiring Person, 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"). The redemption of the Rights by the Board of Directors of the Company

may be made effective at such time, on such basis and with such conditions as

the Board of Directors of the Company, in its sole discretion, may establish.


          (b) Immediately upon the action of the Board of Directors of the

Company ordering the redemption of the Rights pursuant to paragraph (a) 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

                                       -40-
<PAGE>

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 of the Company ordering the redemption of the Rights, the Company

shall mail a notice of redemption to all the holders of the then outstanding

Rights (in case of notice to holders) 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 hereof, and other

than in connection with the purchase of Common Shares prior to the Distribution

Date.


          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 null and 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 adjustment in the number

of Rights pursuant to Section 11(i) (such exchange ratio being hereinafter

referred to as the "EXCHANGE RATIO"). Notwithstanding the foregoing, the Board

of Directors of the Company 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

                                       -41-
<PAGE>

such Subsidiary, or any Person organized, appointed or established by the

Company 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 paragraph (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 the

holders 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 and shall

notify the Rights Agent in writing; 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

                                       -42-
<PAGE>

authorize additional Common Shares for issuance upon exchange of the Rights. In

the event the Company shall, after 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 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 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.


          (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

paragraph (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 prior to the date of

exchange pursuant to this Section 24.


          Section 25. NOTICE OF CERTAIN EVENTS. (a) In case the Company shall,

at any time after the Distribution Date, propose (i) to pay any dividend payable

in stock of any class to the holders of the Preferred Shares or to make any

other distribution to the holders of the Preferred Shares (other than a regular

quarterly cash dividend), (ii) to offer to the holders of the 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 reclassifi-

                                       -43-
<PAGE>

cation of the 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 purposes 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 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 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

                                       -44-
<PAGE>

describe such event and the consequences of such 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:

            CK Witco Corporation
            One Station Place, Metro Center
            Stamford, Connecticut  06902
            Attention:  Corporate Secretary

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:

            ChaseMellon Shareholder Services, L.L.C.
            One Mellon Bank Center
            Pittsburgh, PA 15258
            Attention:  General Counsel

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 Certifi-

                                       -45-
<PAGE>

cates 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 to not less than the greater of (a) the

sum of .001% and 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 of the Company, or any entity holding Common Shares for or

pursuant to the terms of any such plan) and (b) 10%.


          Section 28. 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 29. BENEFITS OF THIS AGREEMENT. Nothing in this Agreement

shall be construed to give to any Person 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).


                                       -46-
<PAGE>

          Section 30. 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 31. 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 New York 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 32. 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 33. 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.


                                       -47-
<PAGE>



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

Attest:                                 CK Witco Corporation


By: /s/ Barry J. Shainman               By:  /s/ John T. Ferguson II
   ------------------------                 ---------------------------------
   Name:  Barry J. Shainman                 Name:  John T. Ferguson II
   Title: Assistant Secretary               Title: Senior Vice President,
                                                   General Counsel and Secretary


Attest:                                 ChaseMellon Shareholder Services, L.L.C.

By: /s/ Jacqueline Wadsworth            By:  /s/ Lee Tinto
   --------------------------               ---------------------------------
    Name:  Jacqueline Wadsworth             Name:  Lee Tinto
    Title: Vice President                   Title: Vice President










                                       -48-
<PAGE>

                                                                       EXHIBIT A
                                      FORM

                                       of

                           CERTIFICATE OF DESIGNATIONS

                                       of

                  SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                                       of

                              CK WITCO CORPORATION

                         (Pursuant to Section 151 of the
                        Delaware General Corporation Law)


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

            CK Witco Corporation, a corporation organized and existing under the
General Corporation Law of the State of Delaware (hereinafter called the
"Corporation"), hereby certifies that the following resolution was adopted by
the Board of Directors of the Corporation as required by Section 151 of the
General Corporation Law at a meeting duly called and held on September 1, 1999:

            RESOLVED, that pursuant to the authority granted to and vested in
the Board of Directors of this Corporation (hereinafter called the "Board of
Directors" or the "Board") in accordance with the provisions of the Certificate
of Incorporation, the Board of Directors hereby creates a series of Preferred
Stock, par value $0.10 per share, of the Corporation (the "Preferred Stock"),
and hereby states the designation and number of shares, and fixes the relative
rights, preferences, and limitations thereof as follows:

            Series A Junior Participating Preferred Stock:

Section 1. DESIGNATION AND AMOUNT. The shares of such series shall be designated
as "Series A Junior Participating Preferred Stock" (the "Series A Preferred
Stock") and the number of shares constituting the Series A Preferred Stock shall
be 150,000. 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 Series A 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, rights or warrants or upon the conversion of
any outstanding securities issued by the Corporation convertible into Series A
Preferred Stock.

                                       A-1
<PAGE>

          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
     Series A Preferred Stock with respect to dividends, the holders of shares
     of Series A Preferred Stock, in preference to the holders of Common Stock,
     par value $0.01per share (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 Series A Preferred Stock, in an amount per share
     (rounded to the nearest cent) equal to the greater of (a) $1 or (b) subject
     to the provision for adjustment hereinafter set forth, 1000 times the
     aggregate per share amount of all cash dividends, and 1000 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 Series A 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 Series A
     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
     Series A 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 per share on the Series A Preferred Stock shall nevertheless be payable
     on such subsequent Quarterly Dividend Payment Date.

          (C) Dividends shall begin to accrue and be cumulative on outstanding
     shares of Series A 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 is-

                                       A-2
<PAGE>

     sue is a Quarterly Dividend Payment Date or is a date after the record date
     for the determination of holders of shares of Series A 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 Series A 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 Series A 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 Series A Preferred
Stock shall have the following voting rights:

          (A) Subject to the provision for adjustment hereinafter set forth,
     each share of Series A Preferred Stock shall entitle the holder thereof to
     1000 votes on all matters submitted to a vote of the stockholders 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 Series A 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
     Designations creating a series of Preferred Stock or any similar stock, or
     by law, the holders of shares of Series A 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 stockholders of the Corporation.

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

                                       A-3
<PAGE>

     shares of Series A 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 Series A 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 Series A
          Preferred Stock, except dividends paid ratably on the Series A
          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 Series A 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
          Series A Preferred Stock; or

               (iv) redeem or purchase or otherwise acquire for consideration
          any shares of Series A Preferred Stock, or any shares of stock ranking
          on a parity with the Series A 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.

          Section 5. REACQUIRED SHARES. Any shares of Series A 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
Certificate of Incorporation, or in any other Certificate of Designations
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

                                       A-4
<PAGE>

shares of stock ranking junior (either as to dividends or upon liquidation,
dissolution or winding up) to the Series A Preferred Stock unless, prior
thereto, the holders of shares of Series A Preferred Stock shall have received
$1000 per share, plus an amount equal to accrued and unpaid dividends and
distributions thereon, whether or not declared, to the date of such payment,
provided that the holders of shares of Series A Preferred Stock shall be
entitled to receive an aggregate amount per share, subject to the provision for
adjustment hereinafter set forth, equal to 1000 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 Series A Preferred Stock,
except distributions made ratably on the Series A 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 Series A 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
Series A 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 1000 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 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 Series A 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 Series A Preferred Stock
shall not be redeemable.

                                       A-5
<PAGE>

          Section 9. RANK. The Series A Preferred Stock shall rank, with
respect to the payment of dividends and the distribution of assets, junior to
all series of any other class of the Corporation's Preferred Stock.

          Section 10. AMENDMENT. The Certificate 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 Series A 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 Series A Preferred Stock, voting
together as a single class.


                                       A-6
<PAGE>


            IN WITNESS WHEREOF, this Certificate of Designations is executed on
behalf of the Corporation by its Chairman of the Board and attested by its
Secretary this __ day of
___________, ___.


                                          ---------------------------------
                                          [                            ]
                                            --------------------------
                                            Chairman of the Board
Attest:
- ---------------------
[                 ]
 ----------------
 Secretary


                                       A-7
<PAGE>





                                                                       EXHIBIT B

                            Form of Right Certificate

Certificate No. R-                                                ___ Rights

          NOT EXERCISABLE AFTER DECEMBER 31, 2009 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 AGREEMENT.

                                Right Certificate

                              CK WITCO 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
Agreement, dated as of September 2, 1999 (the "Agreement"), between CK Witco
Corporation (the "Company"), and ChaseMellon Shareholder Services, L.L.C. (the
"Rights Agent"), to purchase from the Company at any time after the Distribution
Date (as such term is defined in the Agreement) and prior to 5:00 P.M., New York
City time, on December 31, 2009 at the principal office of the Rights Agent, or
at the office of its successor as Rights Agent, one one-thousandth of a fully
paid non-assessable share of Series A Junior Participating Preferred Stock, par
value $0.10 per share, of the Company (the "Preferred Shares"), at a purchase
price of $100 per one one-thousandth 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-thousandths 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 September 11,
1999, based on the Preferred Shares as constituted at such date. As provided in
the Agreement, the Purchase Price and the number of one one-thousandths 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 Agreement, which terms, provisions and conditions are
hereby incorporated herein by reference and made a part hereof and to which
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 Agreement are on file at the principal executive offices of the Company and
the offices of the Rights Agent.

            This Right Certificate, with or without other Right Certificates,
upon surrender at the principal office of the Rights Agent, may be exchanged for
another Right Certificate or Right Certificates of like tenor and date
evidencing Rights entitling the holder to purchase a like aggre-

                                       B-1
<PAGE>

gate 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 Agreement, the Rights evidenced by
this Right 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 Preferred
Shares or shares of the Company's Common Stock, par value $0.01 per share.

            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-thousandth 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 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 Agreement
or herein be construed to confer upon the holder hereof, as such, any of the
rights of a stockholder of the Company or any right to vote for the election of
directors or upon any matter submitted to stockholders at any meeting thereof,
or to give or withhold consent to any corporate action, or to receive notice of
meetings or other actions affecting stockholders (except as provided in the
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 Agreement.

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

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

ATTEST:                                   CK Witco Corporation


                                          By
- ------------------                           ---------------------
Name:                                        Name:
Title:                                       Title:

Countersigned:

ChaseMellon Shareholder Services, L.L.C.
By
  ----------------------------------
   Name:
   Title:

                                       B-2
<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 a member firm of a registered
national securities exchange, a member of the National Association of Securities
Dealers, Inc., or a commercial bank or trust company having an office or
correspondent in the United States.

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

            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 Agreement).


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

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

                                       B-3
<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:  CK Witco 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

                                       B-4
<PAGE>

Signature Guaranteed:

            Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of Securities
Dealers, Inc., or a commercial bank or trust company having an office or
correspondent in the United States.


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

            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 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 Agreement) and such Assignment
or Election to Purchase will not be honored.


                                       B-5
<PAGE>

                                                                     EXHIBIT C
                          SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED SHARES


INTRODUCTION

            On September 1, 1999, the Board of Directors of CK Witco Corporation
(the "Company") declared a dividend of one preferred share purchase right (a
"Right") for each outstanding share of common stock, par value $0.01 per share,
of the Company (the "Common Shares"). The dividend is payable on September 11,
1999 (the "Record Date") to the stockholders of record on that date. The
description and terms of the Rights are set forth in an Agreement (the
"Agreement") between the Company and ChaseMellon Shareholder Services, L.L.C.,
as Rights Agent (the "Rights Agent").

PURCHASE PRICE

            Each Right entitles the registered holder to purchase from the
Company one one-thousandth of a share of Series A Junior Participating Preferred
Stock of the Company, par value $0.10 per share (the "Preferred Shares"), at a
price of $100 per one one-thousandth of a Preferred Share (the "Purchase
Price"), subject to adjustment.

FLIP-IN

            In the event that any person or group of affiliated or associated
persons acquires beneficial ownership of 15% or more of the outstanding Common
Shares (an "Acquiring Person"), each holder of a Right, other than Rights
beneficially owned by the Acquiring Person (which will thereafter be void), will
thereafter 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.

FLIP-OVER

            If 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
after a person or group has become an Acquiring Person, each holder of a Right
(other than Rights beneficially owned by Acquiring Person, which will be void)
will thereafter have the right to receive 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.



                                       C-1
<PAGE>

DISTRIBUTION DATE

            The distribution date is the earlier of

            (i) 10 days following a public announcement that a person or group
of affiliated or associated persons have 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 of the Company prior to such time as any person
or group of affiliated persons 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 the outstanding Common Shares.

TRANSFER AND DETACHMENT

            Until 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 a copy of this Summary of Rights
attached thereto. Until the Distribution Date (or earlier redemption or
expiration of the Rights), the Rights will be transferred with and only with the
Common Shares, and transfer of those certificates will also constitute transfer
of these Rights.

            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 thereafter
evidence the Rights.

EXERCISABILITY

            The Rights are not exercisable until the Distribution Date. The
Rights will expire on December 31, 2009 (the "Final Expiration Date"), unless
the Final Expiration Date is extended or unless the Rights are earlier redeemed
or exchanged by the Company, in each case, as described below.

ADJUSTMENTS

            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 in the event of stock
dividends, stock splits, reclassifications, or certain distributions with
respect to the Preferred Shares. The number of outstanding Rights and the number
of one one-thousandths of a Preferred Share issuable upon exercise of each Right
are also subject to adjustment if, prior to the Distribution Date, there is a
stock split of the Common Shares or a stock dividend on the Common Shares
payable in Common Shares or subdivisions, consolidations or combinations of the
Common Shares. 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

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are integral multiples of one one-thousandth of a Preferred Share, which may, at
the election 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.

PREFERRED SHARES

            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 per share but will be entitled to an aggregate
dividend of 1000 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 $1000 per share but will be entitled to an
aggregate payment of 1000 times the payment made per Common Share. Each
Preferred Share will have 1000 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
1000 times the amount received per Common Share. These rights are protected by
customary antidilution provisions.

            The value of the one one-thousandth interest in a Preferred Share
purchasable upon exercise of each Right should, because of the nature of the
Preferred Shares' dividend, liquidation and voting rights, approximate the value
of one Common Share.

EXCHANGE

            At any time after any person or group becomes an Acquiring Person,
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 the Acquiring Person, which will have
become void), in whole or in part, at an exchange ratio of one Common Share, or
one one-thousandth of a Preferred Share (subject to adjustment).

REDEMPTION

            At any time prior to any person or group becoming an Acquiring
Person, 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"). The
redemption of the Rights may be made effective at such time on such basis with
such conditions as the Board of Directors in its sole discretion may establish.
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.

AMENDMENTS
            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 certain thresholds described above to not less than the
greater of (i) the sum of .001% and the largest percentage of the outstanding
Common Shares then known to the Company to be beneficially owned by any person
or group of affiliated or associated persons and (ii) 10%, except that from

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and after such time as any person or group of affiliated or associated persons
becomes an Acquiring Person no such amendment may adversely affect the interests
of the holders of the Rights.

RIGHTS AND HOLDERS

            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.

FURTHER INFORMATION

            A copy of the Agreement has been filed with the Securities and
Exchange Commission as an Exhibit to a Registration Statement on Form 8-A dated
                    , 1999. A copy of the Agreement is available free of charge
from the Company. This summary description of the Rights does not purport to be
complete and is qualified in its entirety by reference to the Agreement, which
is hereby incorporated herein by reference.



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