SOCIETY CORP
424B3, 1994-01-05
NATIONAL COMMERCIAL BANKS
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<PAGE>   1
                                               Filed pursuant to Rule 424(b)(3)
                                                   Registration No. 33-51717

                                                            [KeyCorp Letterhead]
 
                                                               December 29, 1993
 
Dear KeyCorp Shareholder:
 
     You are cordially invited to attend a Special Meeting of Shareholders of
KeyCorp to be held at the KeyCorp Tower, 30 South Pearl Street, Albany, New
York, on February 16, 1994, at 8:00 a.m., local time.
 
     The Boards of Directors of KeyCorp and Society Corporation ("Society") have
unanimously approved a merger of KeyCorp and Society. At the Special Meeting,
KeyCorp shareholders will be asked to adopt the Merger Agreement providing for
the merger of KeyCorp into and with Society (the "Merger") with the surviving
corporation being named "Key Bancshares Inc." or a variant thereof ("New Key").
In the Merger, each outstanding share of KeyCorp Common Stock will be converted
into 1.205 shares of New Key Common Stock, each outstanding share of KeyCorp 10%
Cumulative Preferred Stock, Series B, will be converted into one share of New
Key 10% Cumulative Preferred Stock, Class A, and each share of Society Common
Stock will remain outstanding as a share of New Key Common Stock.
 
     This "merger of equals" transaction is designed to create one of the
nation's premier banking organizations. The merger represents significant
geographic expansion for both KeyCorp and Society from their existing markets
and offers the potential for enhancing the financial products and services
available to our customers and those of Society.
 
     YOUR BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT YOU VOTE IN FAVOR OF
THE ADOPTION OF THE MERGER AGREEMENT.
 
     A proxy card is enclosed. Please indicate your voting instructions and
sign, date, and mail the proxy card promptly in the return envelope provided.
Whether or not you plan to attend the Special Meeting in person, it is important
that you return the enclosed proxy card so that your shares of KeyCorp Common
Stock are voted. Because the Merger requires approval of the holders of
two-thirds of the shares of KeyCorp Common Stock, a failure to vote has the same
effect as a vote against the Merger.
 
                                            Sincerely,
 
                                            VICTOR J. RILEY, JR.
                                            Chairman of the Board, President
                                            and Chief Executive Officer
<PAGE>   2
 
                                                            [KeyCorp Letterhead]
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
 
   
                               February 16, 1994
    
 
   
     A Special Meeting of Shareholders of KeyCorp (including any adjournments or
postponements thereof, the "KeyCorp Meeting") will be held on February 16, 1994
at 8:00 a.m., local time, at the KeyCorp Tower, 30 South Pearl Street, Albany,
New York, for the purpose of voting on the adoption of the Agreement and Plan of
Merger and the related Supplemental Agreement to Agreement and Plan of Merger,
each dated as of October 1, 1993, as amended (together, the "Merger Agreement"),
between KeyCorp and Society Corporation, providing for the merger of KeyCorp
into and with Society Corporation, with Society Corporation as the surviving
corporation under the name "Key Bancshares Inc." or a variant thereof ("New
Key"), as described in the accompanying Prospectus/Joint Proxy Statement.
    
 
     Only holders of record of KeyCorp Common Stock as of the close of business
on December 28, 1993, have the right to receive notice of and to vote at the
KeyCorp Meeting. Holders of KeyCorp Preferred Stock, as such, will not be
entitled to vote.
 
     The accompanying document constitutes the Prospectus/Joint Proxy Statement
of KeyCorp and Society Corporation for their respective special meetings of
shareholders. Copies of the Agreement and Plan of Merger and the related
Supplemental Agreement to Agreement and Plan of Merger are attached as
Appendices I and II, respectively, to the Prospectus/Joint Proxy Statement and
copies of the Amended and Restated Articles of Incorporation and Regulations of
New Key are attached as Exhibits I and II, respectively, to the Agreement and
Plan of Merger. The adoption of the Merger Agreement by the shareholders of
KeyCorp and Society Corporation will constitute, under applicable law, the
adoption of such Amended and Restated Articles of Incorporation and Regulations
of New Key.
 
     YOU ARE CORDIALLY INVITED TO ATTEND THE KEYCORP MEETING IN PERSON. WHETHER
OR NOT YOU PLAN TO ATTEND THE MEETING, YOU ARE URGED TO COMPLETE, DATE, SIGN,
AND RETURN THE ENCLOSED PROXY CARD IN THE ENVELOPE PROVIDED AS SOON AS POSSIBLE.
 
     HOLDERS OF KEYCORP STOCK AND DEPOSITARY SHARES SHOULD RETAIN THEIR STOCK
CERTIFICATES AND DEPOSITARY RECEIPTS UNTIL TRANSMITTAL FORMS HAVE BEEN RECEIVED.
STOCK CERTIFICATES AND DEPOSITARY RECEIPTS SHOULD NOT BE RETURNED WITH THE
ENCLOSED PROXY CARD.
 
                                            By Order of the Board of Directors
 
                                            ROBERT W. BOUCHARD, Secretary
 
December 29, 1993
 
                 WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING,
                     PLEASE SIGN, DATE, AND PROMPTLY RETURN
              THE ACCOMPANYING PROXY CARD IN THE ENCLOSED ENVELOPE
<PAGE>   3
 
                        [SOCIETY CORPORATION LETTERHEAD]
 
                                                               December 29, 1993
 
Dear Shareholder:
 
     You are cordially invited to attend a Special Meeting of Shareholders of
Society Corporation to be held at The Forum Conference Center, One Cleveland
Center, 1375 East Ninth Street, Cleveland, Ohio, on February 16, 1994, at 9:30
a.m., local time.
 
     At the Special Meeting, Society shareholders will be asked to adopt the
Merger Agreement providing for the merger of KeyCorp into and with Society, with
Society as the surviving corporation under the name "Key Bancshares Inc." or a
variant thereof ("New Key"). In the merger, each outstanding share of KeyCorp
Common Stock will be converted into 1.205 shares of New Key Common Stock, each
outstanding share of KeyCorp 10% Cumulative Preferred Stock, Series B, will be
converted into one share of New Key 10% Cumulative Preferred Stock, Class A, and
each share of Society Common Stock will remain outstanding as a share of New Key
Common Stock.
 
     This "merger of equals" transaction is designed to create one of the
nation's premier banking organizations. The merger represents significant
geographic expansion for both Society and KeyCorp from their existing markets
and offers the potential for enhancing the financial products and services
available to our customers and those of KeyCorp.
 
     YOUR BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT YOU VOTE IN FAVOR OF
THE ADOPTION OF THE MERGER AGREEMENT.
 
     A proxy card is enclosed. Please indicate your voting instructions and
sign, date, and mail the proxy card promptly in the return envelope provided.
Whether or not you plan to attend the Special Meeting in person, it is important
that you return the enclosed proxy card so that your shares of Society Common
Stock are voted.
 
                                            Sincerely,
 
                                            ROBERT W. GILLESPIE
                                            Chairman of the Board and
                                            Chief Executive Officer
<PAGE>   4
 
                        [Society Corporation Letterhead]
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
 
   
                               February 16, 1994
    
 
   
     A Special Meeting of Shareholders of Society Corporation (including any
adjournments or postponements thereof, the "Society Meeting") will be held on
February 16, 1994 at 9:30 a.m., local time, at The Forum Conference Center, One
Cleveland Center, 1375 East Ninth Street, Cleveland, Ohio, for the purpose of
voting on the adoption of the Agreement and Plan of Merger and the related
Supplemental Agreement to Agreement and Plan of Merger, each dated as of October
1, 1993, as amended (together, the "Merger Agreement"), between KeyCorp and
Society Corporation, providing for the merger of KeyCorp into and with Society
Corporation, with Society Corporation as the surviving corporation under the
name "Key Bancshares Inc." or a variant thereof ("New Key"), as described in the
accompanying Prospectus/Joint Proxy Statement, and all other matters properly
coming before the Society Meeting which relate to the Merger Agreement and the
transactions contemplated thereby.
    
 
     Only holders of record of Society Common Stock as of the close of business
on December 28, 1993, have the right to receive notice of and to vote at the
Society Meeting.
 
     The accompanying document constitutes the Prospectus/Joint Proxy Statement
of Society Corporation and KeyCorp for their respective special meetings of
shareholders. Copies of the Agreement and Plan of Merger and the Supplemental
Agreement to Agreement and Plan of Merger are attached as Appendices I and II,
respectively, to the Prospectus/Joint Proxy Statement and copies of the Amended
and Restated Articles of Incorporation and Regulations of New Key are attached
as Exhibits I and II, respectively, to the Agreement and Plan of Merger. The
adoption of the Merger Agreement by the shareholders of Society Corporation and
KeyCorp will constitute, under applicable law, the adoption of such Amended and
Restated Articles of Incorporation and Regulations of New Key.
 
     YOU ARE CORDIALLY INVITED TO ATTEND THE SOCIETY MEETING IN PERSON. WHETHER
OR NOT YOU PLAN TO ATTEND THE MEETING, YOU ARE URGED TO COMPLETE, DATE, SIGN,
AND RETURN THE ENCLOSED PROXY CARD IN THE ENVELOPE PROVIDED AS SOON AS POSSIBLE.
 
                                            By Order of the Board of Directors
 
                                            LAWRENCE J. CARLINI, Secretary
 
DECEMBER 29, 1993
 
                 WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING,
                     PLEASE SIGN, DATE, AND PROMPTLY RETURN
              THE ACCOMPANYING PROXY CARD IN THE ENCLOSED ENVELOPE
<PAGE>   5
 
                             JOINT PROXY STATEMENT
 
                        KEYCORP AND SOCIETY CORPORATION
        SPECIAL MEETINGS OF SHAREHOLDERS TO BE HELD ON FEBRUARY 16, 1994
 
                                   PROSPECTUS
 
                              SOCIETY CORPORATION
 (TO BE RENAMED "KEY BANCSHARES INC." OR A VARIANT THEREOF UPON CONSUMMATION OF
                          THE MERGER DESCRIBED HEREIN)
   
  COMMON SHARES, WITH A PAR VALUE OF $1 EACH (NOT TO EXCEED 137,788,925 COMMON
                                    SHARES)
    
                                      AND
    DEPOSITARY SHARES, EACH REPRESENTING A ONE-FIFTH INTEREST IN A SHARE OF
       10% CUMULATIVE PREFERRED STOCK, CLASS A, PAR VALUE $5.00 PER SHARE
                  (NOT TO EXCEED 6,400,000 DEPOSITARY SHARES)
 
    This Prospectus/Joint Proxy Statement is being furnished to holders of
Common Shares, par value $5.00 per share (the "KeyCorp Common Stock"), of
KeyCorp, a New York corporation ("KeyCorp"), in connection with the solicitation
of proxies by the Board of Directors of KeyCorp for use at a Special Meeting of
Shareholders of KeyCorp to be held at 8:00 a.m. on February 16, 1994 at the
KeyCorp Tower, 30 South Pearl Street, Albany, New York, and at any adjournments
or postponements thereof (the "KeyCorp Meeting"). This Prospectus/Joint Proxy
Statement is also being furnished to holders of Common Shares, with a par value
of $1 each (the "Society Common Stock"), of Society Corporation, an Ohio
corporation ("Society"), in connection with the solicitation of proxies by the
Board of Directors of Society for use at a Special Meeting of Shareholders of
Society to be held at 9:30 a.m. on February 16, 1994, at The Forum Conference
Center, One Cleveland Center, 1375 East Ninth Street, Cleveland, Ohio, and at
any adjournments or postponements thereof (the "Society Meeting"). At the
KeyCorp Meeting and at the Society Meeting, the holders of KeyCorp Common Stock
and Society Common Stock, respectively, will consider and vote upon the adoption
of an Agreement and Plan of Merger, as amended (the "Plan of Merger"), and a
related Supplemental Agreement to Agreement and Plan of Merger, as amended (the
"Supplemental Agreement"), each of which is by and between KeyCorp and Society
and is dated as of October 1, 1993 (the Supplemental Agreement together with the
Plan of Merger being hereinafter the "Merger Agreement"), providing for the
merger (the "Merger") of KeyCorp into and with Society, with Society as the
surviving corporation under the name "Key Bancshares Inc." or a variant thereof
("New Key"). See "TERMS OF THE MERGER -- Name." Adoption of the Merger Agreement
will also constitute, under applicable law, adoption of the Amended and Restated
Articles of Incorporation and the Regulations of New Key attached hereto as
Exhibits I and II, respectively, to the Plan of Merger. See "TERMS OF THE MERGER
- -- General."
 
    This Prospectus/Joint Proxy Statement also constitutes a prospectus of
Society in respect of up to 137,788,925 Common Shares, with a par value of $1
each, of New Key (the "New Key Common Stock") to be issued in connection with
the Merger and up to 6,400,000 Depositary Shares (the "New Key Depositary
Shares") each representing a one-fifth interest in a share of 10% Cumulative
Preferred Stock, Class A, par value $5.00 per share (the "New Key Preferred
Stock"), of New Key to be issued in connection with the Merger. Upon
consummation of the Merger, except as described herein, each outstanding share
of KeyCorp Common Stock will be converted into 1.205 shares (the "Exchange
Ratio") of New Key Common Stock and each outstanding share of KeyCorp Preferred
Stock (as defined herein) will be converted into one share of New Key Preferred
Stock. Unless the context otherwise requires, all references herein to the
KeyCorp Common Stock and the Society Common Stock also include the respective
rights attached thereto. Each share of New Key Common Stock issued in the Merger
will be accompanied by one New Key Right (as defined herein) to purchase one
share of New Key Common Stock upon the terms and conditions set forth in the New
Key Rights Agreement (as defined herein). See "COMPARISON OF CERTAIN RIGHTS OF
HOLDERS OF CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY -- Shareholder Rights
Plans." Upon consummation of the Merger, except as described herein, each
outstanding share of Society Common Stock will continue to be an outstanding
share of New Key Common Stock and each outstanding right to purchase Society
Common Stock under the Society Rights Plan (as defined herein) will continue to
be an outstanding right to purchase New Key Common Stock under the New Key
Rights Plan (as defined herein). See "TERMS OF THE MERGER -- Conversion of
KeyCorp Capital Stock; Effects on Society Shareholders." This Prospectus/Joint
Proxy Statement is also being furnished to holders of Depositary Shares (the
"KeyCorp Depositary Shares") each representing a one-fifth interest in a share
of 10% Cumulative Preferred Stock, Series B, par value $5.00 per share (the
"KeyCorp Preferred Stock") of KeyCorp.
 
   
    The outstanding shares of Society Common Stock are, and the shares of New
Key Common Stock offered hereby will be, listed on the New York Stock Exchange
(the "NYSE"). The last reported sale price of Society Common Stock reported on
the NYSE on December 30, 1993 was $29.63 per share.
    
 
    The terms, designations, preferences, limitations, privileges, and relative
rights of New Key Preferred Stock and KeyCorp Preferred Stock are identical
except for certain non-material technical differences. Each share of KeyCorp
Preferred Stock is, and each share of New Key Preferred Stock to be issued in
the Merger will be, represented by five depositary shares, with each depositary
share being evidenced by one depositary receipt. The following provisions of the
New Key Preferred Stock are also terms of the KeyCorp Preferred Stock. Upon any
liquidation, dissolution, or winding up of New Key, the holders of New Key
Preferred Stock will be entitled to receive, in full, the amount of $125.00 per
share, plus an amount equal to accrued and unpaid dividends, in preference to
the New Key Common Stock or any other class of stock of New Key ranking junior
to the New Key Preferred Stock upon liquidation. On and after June 30, 1996, the
New Key Preferred Stock will be redeemable at New Key's option, subject to prior
approval of the Board of Governors of the Federal Reserve System, if necessary,
at $125.00 per share plus an amount equal to accrued and unpaid dividends. The
New Key Depositary Shares, each representing a one-fifth interest in one share
of New Key Preferred Stock, will be listed on the NYSE. Except to the extent
expressly required under Ohio law (New York law as to the KeyCorp Preferred
Stock) and except in the case of certain dividend defaults, the holders of New
Key Preferred Stock, as such, will not have voting rights. See "DESCRIPTION OF
NEW KEY CAPITAL STOCK -- New Key Preferred Stock and New Key Depositary Shares."
 
    This Prospectus/Joint Proxy Statement and the accompanying proxy cards are
first being mailed to shareholders of KeyCorp and Society on or about January 4,
1994.
                            ------------------------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
             COMMISSION PASSED UPON THE ACCURACY OR
       ADEQUACY OF THIS PROSPECTUS/JOINT PROXY STATEMENT. ANY
        REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                         ------------------------
 
THE SECURITIES OFFERED HEREBY ARE NOT SAVINGS ACCOUNTS, DEPOSITS, OR OTHER
OBLIGATIONS OF A BANK OR SAVINGS ASSOCIATION AND ARE NOT INSURED BY THE
          FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER
                           GOVERNMENTAL AGENCY.
                         ------------------------
 
     The date of this Prospectus/Joint Proxy Statement is December 29, 1993
<PAGE>   6
 
                             AVAILABLE INFORMATION
 
     Each of KeyCorp and Society is subject to the informational requirements of
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith files reports, proxy statements, and other information with
the Securities and Exchange Commission (the "SEC"). Society has filed with the
SEC a Registration Statement on Form S-4 (the "Registration Statement") under
the Securities Act of 1933, as amended (the "Securities Act"), covering the New
Key Common Stock, the New Key Preferred Stock, and the related New Key
Depositary Shares to be issued by New Key in connection with the Merger. The
Registration Statement and the exhibits thereto, as well as the reports, proxy
statements, and other information filed with the SEC by KeyCorp and Society
under the Exchange Act, may be inspected and copied at prescribed rates at the
public reference facilities maintained by the SEC at Room 1024, Judiciary Plaza,
450 Fifth Street, N.W., Washington, D.C. 20549, and at the regional offices of
the SEC located at 7 World Trade Center, Thirteenth Floor, New York, New York
10048, and The Citicorp Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661. Copies of such material may also be obtained at prescribed rates
from the Public Reference Section of the SEC at 450 Fifth Street, N.W.,
Washington, D.C. 20549. In addition, the KeyCorp Common Stock, the Depositary
Shares each representing a one-fifth interest in one share of KeyCorp Preferred
Stock (the "KeyCorp Depositary Shares"), and the Society Common Stock are listed
on the NYSE and all materials filed by KeyCorp and Society with the SEC will be
available for inspection at the offices of the NYSE, 20 Broad Street, New York,
New York 10005. As permitted by the rules and regulations of the SEC, this
Prospectus/Joint Proxy Statement omits certain information, exhibits, and
undertakings contained in the Registration Statement. Reference is made to the
Registration Statement and to the exhibits thereto for further information.
 
     Statements contained herein or in any document incorporated herein by
reference as to the contents of any contract or other document referred to
herein or therein are not necessarily complete and, in each instance, reference
is made to the copy of such contract or other document filed as an exhibit to
the Registration Statement or such other document incorporated herein by
reference. Each such statement is qualified in its entirety by such reference.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents filed with the SEC under the Exchange Act by
KeyCorp are hereby incorporated by reference into this Prospectus/Joint Proxy
Statement: (a) KeyCorp's Annual Report on Form 10-K for the year ended December
31, 1992; (b) KeyCorp's Quarterly Reports on Form 10-Q for the quarters ended
March 31, 1993, June 30, 1993, and September 30, 1993; (c) KeyCorp's Current
Reports on Form 8-K filed on January 14, January 27, March 18 (as amended by a
Form 8 filed on May 20), which contained the audited restated consolidated
financial statements of KeyCorp for the fiscal year ended December 31, 1992
(which gave effect to the merger of KeyCorp with Puget Sound Bancorp on January
15, 1993), April 28, May 19, July 8 (two Reports), September 21, October 13 (two
Reports), and October 15, 1993; (d) the description of the KeyCorp Common Stock
contained in KeyCorp's Registration Statement on Form 8-A with respect thereto
filed pursuant to Section 12 of the Exchange Act (and any amendment or report
filed for the purpose of updating the description); (e) the description of the
KeyCorp Preferred Stock and the KeyCorp Depositary Shares contained in KeyCorp's
Registration Statement on Form 8-A with respect thereto filed pursuant to
Section 12 of the Exchange Act (and any amendment or report filed for the
purpose of updating the description); and (f) the description of the rights
issued pursuant to the Shareholder Protection Rights Plan of KeyCorp contained
in KeyCorp's Registration Statement on Form 8-A with respect thereto filed
pursuant to Section 12 of the Exchange Act (and any amendment or report filed
for the purpose of updating the description).
 
     The following documents filed with the SEC under the Exchange Act by
Society are hereby incorporated by reference into this Prospectus/Joint Proxy
Statement: (a) Society's Annual Report on Form 10-K for the year ended December
31, 1992; (b) Society's Quarterly Reports on Form 10-Q for the quarters ended
March 31, 1993, June 30, 1993, and September 30, 1993; (c) Society's Current
Reports on Form 8-K filed on January 27, March 22, April 14, July 9, October 13,
and November 19, 1993; and (d) the descriptions of Society Common Stock and the
rights to purchase Society Common Stock contained in Society's Registration
 
                                        2
<PAGE>   7
 
Statement on Form 8-A with respect thereto filed pursuant to Section 12 of the
Exchange Act (and any amendment or report filed for the purpose of updating the
description).
 
     The information relating to KeyCorp and Society contained in this
Prospectus/Joint Proxy Statement should be read together with the information in
the documents incorporated by reference.
 
     All documents filed by KeyCorp and Society, respectively, under Section
13(a), 13(c), 14, or 15(d) of the Exchange Act after the date of this
Prospectus/Joint Proxy Statement and prior to the date of the KeyCorp Meeting
and the Society Meeting shall be deemed to be incorporated by reference in this
Prospectus/Joint Proxy Statement and to be a part hereof from the date of filing
such documents. Any statement contained herein or in a document incorporated or
deemed to be incorporated by reference herein shall be deemed to be modified or
superseded for purposes of this Prospectus/Joint Proxy Statement to the extent
that a statement contained herein or in any other subsequently filed document
which is also incorporated or deemed to be incorporated by reference herein
modifies or supersedes such statement. Any such statement so modified or
superseded shall not be deemed, except as so modified or superseded, to
constitute a part of this Prospectus/Joint Proxy Statement.
 
     THIS PROSPECTUS/JOINT PROXY STATEMENT INCORPORATES CERTAIN DOCUMENTS BY
REFERENCE WHICH ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH. THESE DOCUMENTS
(WITHOUT EXHIBITS, UNLESS SUCH EXHIBITS ARE SPECIFICALLY INCORPORATED BY
REFERENCE INTO THIS PROSPECTUS/JOINT PROXY STATEMENT) ARE AVAILABLE WITHOUT
CHARGE TO EACH PERSON, INCLUDING ANY BENEFICIAL OWNER, TO WHOM A COPY OF THIS
PROSPECTUS/JOINT PROXY STATEMENT IS DELIVERED, UPON WRITTEN OR ORAL REQUEST.
REQUESTS FOR SUCH DOCUMENTS SHOULD BE DIRECTED, IN THE CASE OF KEYCORP
DOCUMENTS, TO LEE IRVING, SENIOR VICE PRESIDENT, KEYCORP, ONE KEYCORP PLAZA,
ALBANY, NEW YORK 12201 (TELEPHONE (518) 486-8579), AND, IN THE CASE OF SOCIETY
DOCUMENTS, TO LAWRENCE J. CARLINI, GENERAL COUNSEL, SOCIETY CORPORATION, 127
PUBLIC SQUARE, CLEVELAND, OHIO 44114-1306 (TELEPHONE (216) 689-3000). IN ORDER
TO ENSURE TIMELY DELIVERY OF SUCH DOCUMENTS, ANY REQUEST SHOULD BE MADE BY
FEBRUARY 2, 1994.
 
     NO PERSON IS AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATION NOT CONTAINED IN THIS PROSPECTUS/JOINT PROXY STATEMENT, AND, IF
GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION SHOULD NOT BE RELIED UPON AS
HAVING BEEN AUTHORIZED BY KEYCORP OR SOCIETY. THIS PROSPECTUS/JOINT PROXY
STATEMENT DOES NOT CONSTITUTE AN OFFER TO SELL, OR A SOLICITATION OF AN OFFER TO
PURCHASE, THE SECURITIES OFFERED BY THIS PROSPECTUS/JOINT PROXY STATEMENT, OR
THE SOLICITATION OF A PROXY, IN ANY JURISDICTION IN WHICH IT IS UNLAWFUL TO MAKE
SUCH AN OFFER, SOLICITATION OF AN OFFER, OR PROXY SOLICITATION. NEITHER THE
DELIVERY OF THIS PROSPECTUS/JOINT PROXY STATEMENT NOR ANY DISTRIBUTION OF THE
SECURITIES OFFERED PURSUANT TO THIS PROSPECTUS/JOINT PROXY STATEMENT SHALL,
UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS BEEN NO CHANGE IN
THE INFORMATION SET FORTH HEREIN OR IN THE AFFAIRS OF KEYCORP OR SOCIETY OR ANY
OF THEIR RESPECTIVE SUBSIDIARIES SINCE THE DATE OF THIS PROSPECTUS/JOINT PROXY
STATEMENT OR THAT THE INFORMATION HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO
THE DATE HEREOF.
 
                                        3
<PAGE>   8
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
AVAILABLE INFORMATION..................................................................   2
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE........................................   2
SUMMARY................................................................................   8
  Introduction.........................................................................   8
  Parties to the Merger................................................................   8
  Reasons for the Merger; Recommendations of the Boards of Directors...................   9
  Opinions of Financial Advisors.......................................................   9
  Board of Directors and Chief Executive Officers of New Key Through December 31,
     1998..............................................................................  10
  Terms of the Merger..................................................................  10
     General...........................................................................  10
     Effective Time....................................................................  11
     Conversion of KeyCorp Capital Stock...............................................  11
     Effects on Society Shareholders...................................................  11
     Dissenters' Rights................................................................  12
     NYSE Listing......................................................................  12
     Conditions; Regulatory Approvals..................................................  12
     Termination of the Merger Agreement...............................................  12
     Tax and Accounting Treatment of the Merger........................................  12
     New Key Amended and Restated Articles of Incorporation and Regulations of New
      Key..............................................................................  13
     Interests of Certain Persons in the Merger........................................  14
</TABLE>
    
 
   
<TABLE>
<S>                                                                                     <C>
  Shareholder Meetings.................................................................  14
       Date, Time, and Place...........................................................  14
       Purpose of Meetings.............................................................  14
       Shares Outstanding and Entitled to Vote; Record Date............................  14
       Votes Required..................................................................  15
       Shares Owned by Directors, Executive Officers, and Certain Subsidiaries of
        KeyCorp and Society............................................................  15
  KeyCorp and Society Stock Option Agreements and Shareholder Rights Agreements........  15
       Option Agreements...............................................................  15
       The KeyCorp Rights Agreement and the Third Amendment to the Society Rights
        Agreement......................................................................  16
MARKET PRICES..........................................................................  17
SELECTED FINANCIAL DATA................................................................  18
UNAUDITED COMPARATIVE PER SHARE BOOK VALUE, MARKET PRICE, DIVIDEND, AND EARNINGS DATA
  AND SELECTED FINANCIAL RATIOS........................................................  22
INTRODUCTION...........................................................................  26
SPECIAL MEETING OF KEYCORP SHAREHOLDERS................................................  26
  Date, Time, and Place................................................................  26
  Purpose of Meeting...................................................................  26
  Shares Outstanding and Entitled to Vote; Record Date.................................  26
  Vote Required........................................................................  26
  Voting, Solicitation, and Revocation of Proxies......................................  27
SPECIAL MEETING OF SOCIETY SHAREHOLDERS................................................  27
  Date, Time, and Place................................................................  27
  Purpose of Meeting...................................................................  27
  Shares Outstanding and Entitled to Vote; Record Date.................................  28
  Vote Required........................................................................  28
  Voting, Solicitation, and Revocation of Proxies......................................  28
</TABLE>
    
 
                                        4
<PAGE>   9
 
   
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
BACKGROUND OF AND REASONS FOR THE MERGER...............................................  29
  Background of the Merger.............................................................  29
  Reasons for the Merger -- General....................................................  30
  Reasons for the Merger -- KeyCorp....................................................  32
  Reasons for the Merger -- Society....................................................  33
  Opinions of Financial Advisors.......................................................  34
       KeyCorp.........................................................................  34
       Society.........................................................................  38
  Recommendations of Boards of Directors...............................................  42
TERMS OF THE MERGER....................................................................  42
  General..............................................................................  42
  Conversion of KeyCorp Capital Stock; Effects on Society Shareholders.................  42
  Surrender of Certificates and Depositary Receipts....................................  43
  Treatment of Stock Options...........................................................  44
  Name.................................................................................  45
  Conduct of Business Pending the Merger...............................................  45
  No Solicitations.....................................................................  47
  Conditions to the Merger.............................................................  48
  Regulatory Approvals.................................................................  49
  Waiver of Conditions, Amendment, or Termination of the Merger Agreement..............  52
  Effective Time.......................................................................  53
  Board of Directors and Chief Executive Officers of New Key Through December 31,
     1998..............................................................................  53
  Interests of Certain Persons in the Merger...........................................  58
       General.........................................................................  58
       Interests of KeyCorp Directors and Executive Officers...........................  59
       Interests of Society Executive Officers.........................................  63
  Certain Federal Income Tax Consequences..............................................  67
  Accounting Treatment of Merger.......................................................  69
  NYSE Listing.........................................................................  69
  Expenses.............................................................................  69
RIGHTS OF DISSENTING SHAREHOLDERS......................................................  70
  KeyCorp Shareholders.................................................................  70
  Society Shareholders.................................................................  72
KEYCORP AND SOCIETY STOCK OPTION AGREEMENTS AND SHAREHOLDER RIGHTS AGREEMENTS; RESALES
  OF NEW KEY CAPITAL STOCK.............................................................  73
  The KeyCorp and Society Option Agreements............................................  73
  The KeyCorp Rights Agreement.........................................................  78
  The Third Amendment to the Society Rights Agreement..................................  78
  Resales of New Key Capital Stock Received in the Merger..............................  79
BUSINESS OF KEYCORP....................................................................  79
  Overview.............................................................................  79
  Subsidiaries.........................................................................  79
  Pending Acquisitions.................................................................  80
BUSINESS OF SOCIETY....................................................................  81
  Overview.............................................................................  81
  Subsidiaries.........................................................................  81
INTEGRATION OF KEYCORP AND SOCIETY INTO NEW KEY........................................  82
  Integration Management Team..........................................................  82
  Certain Business Strategies Under Consideration......................................  82
</TABLE>
    
 
                                        5
<PAGE>   10
 
   
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
CERTAIN REGULATORY CONSIDERATIONS......................................................  83
  General..............................................................................  83
  Dividend Restrictions................................................................  84
  Holding Company Structure............................................................  84
  Capital Requirements.................................................................  85
  Recent Legislation...................................................................  86
  Depositor Preference Statute.........................................................  88
  Implications of Being a Savings and Loan Holding Company.............................  88
  Control Acquisitions.................................................................  88
UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS............................  89
NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS...................  96
DESCRIPTION OF NEW KEY CAPITAL STOCK...................................................  97
  General..............................................................................  97
  New Key Common Stock.................................................................  97
  New Key Preferred Stock and New Key Depositary Shares................................  97
  Additional Class of Authorized but Unissued New Key Serial Preferred Stock...........  99
AMENDED AND RESTATED ARTICLES OF INCORPORATION AND REGULATIONS OF NEW KEY..............  99
  General..............................................................................  99
  Amended and Restated Articles of Incorporation of New Key............................  99
  Regulations of New Key............................................................... 100
COMPARISON OF CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW
  KEY.................................................................................. 104
  Voting Rights........................................................................ 105
  State Takeover Statutes and Takeover Provisions of Charter Documents................. 106
  Shareholder Rights Plans............................................................. 108
  Special Meetings of Shareholders..................................................... 112
  Amendment of Charter Documents....................................................... 112
  Directors............................................................................ 114
  Director Liability and Indemnification............................................... 115
  Dividends............................................................................ 116
  Repurchases.......................................................................... 117
  No Material Differences in Rights of Holders of New Key Preferred Stock and KeyCorp
     Preferred Stock................................................................... 117
  Inspection Rights.................................................................... 117
CERTAIN LEGAL MATTERS.................................................................. 117
EXPERTS................................................................................ 117
SHAREHOLDER PROPOSALS.................................................................. 118
</TABLE>
    
 
                                        6
<PAGE>   11
 
<TABLE>
<S>          <C>
APPENDICES
      I.     Agreement and Plan of Merger [composite form]
             Exhibit I -- Amended and Restated Articles of Incorporation of New Key
               [composite form]
             Exhibit II -- Regulations of New Key [composite form]
             Exhibit III -- List of Directors of New Key
     II.     Supplemental Agreement to Agreement and Plan of Merger [composite form]
             Exhibit V(A) -- KeyCorp Affiliate Agreement
             Exhibit V(B) -- Society Affiliate Agreement
    III.     Opinion of Salomon Brothers Inc
     IV.     Opinion of CS First Boston Corporation
      V.     KeyCorp Stock Option Agreement
     VI.     Society Corporation Stock Option Agreement
    VII.     New York Dissenters' Rights Statute
   VIII.     Ohio Dissenters' Rights Statute
</TABLE>
 
                                        7
<PAGE>   12
 
                                    SUMMARY
 
     The following summary is intended to summarize certain information
contained elsewhere in this Prospectus/Joint Proxy Statement. This summary is
not intended to be complete and is qualified in its entirety by reference to the
more detailed information contained elsewhere in this Prospectus/Joint Proxy
Statement, the appendices hereto, and the documents referred to and incorporated
herein.
 
INTRODUCTION
 
     The Boards of Directors of KeyCorp and Society have each unanimously
approved and adopted the Plan of Merger and the Supplemental Agreement, pursuant
to which KeyCorp will be merged into and with Society if the shareholders of
both KeyCorp and Society adopt the Merger Agreement by the requisite shareholder
votes, regulatory approvals are received, and certain other conditions are
satisfied. Society will be the surviving corporation in the Merger under New
Key's name. Copies of the Plan of Merger and the Supplemental Agreement are
attached hereto as Appendices I and II, respectively, and are incorporated
herein by reference. The terms of the Merger and information regarding the
KeyCorp Meeting and the Society Meeting are summarized below.
 
PARTIES TO THE MERGER
 
     KeyCorp. KeyCorp is a multi-regional financial services holding company
headquartered in Albany, New York. Incorporated in 1970 under the laws of the
State of New York as First Commercial Banks Inc., KeyCorp is registered under
the federal Bank Holding Company Act of 1956, as amended (the "BHCA"). At
September 30, 1993, based on data from the American Banker publication, KeyCorp
was the 25th largest bank holding company in the United States, in terms of
total consolidated assets, with approximately $32.4 billion at that date.
Through its eleven banking subsidiaries in nine states along the country's
Northeast, Pacific Northwest and Rocky Mountain tiers, KeyCorp provides banking
services to individual customers, small-to medium-sized businesses, and
municipalities. The oldest bank subsidiary of KeyCorp was organized in 1825.
KeyCorp's banking subsidiaries all operate under the Key Bank name and are
located in Alaska, Colorado, Idaho, Maine, New York, Oregon, Utah, Washington,
and Wyoming. As of September 30, 1993, KeyCorp's banking subsidiaries served
their respective markets with over 800 full-service banking offices. In addition
to its banking services, KeyCorp offers a variety of personal and commercial
financial services through other subsidiaries. KeyCorp Mortgage Inc., KeyCorp's
primary mortgage banking subsidiary, serviced a $22.0 billion portfolio of
mortgage loans as of September 30, 1993, making it one of the largest mortgage
servicing companies in the country. KeyCorp's other specialized financial
service companies provide such services as trust, credit life reinsurance,
equipment leasing, securities brokerage, annuity sales, asset management, and
data processing. At September 30, 1993, KeyCorp and its subsidiaries had
approximately 17,800 full-time equivalent employees. See "BUSINESS OF KEYCORP."
 
     Society. Society, a financial services holding company organized in 1958,
is headquartered in Cleveland, Ohio, is incorporated in Ohio, and is registered
under the BHCA. It is principally a regional banking organization and provides a
wide range of banking, fiduciary, and other financial services to corporate,
institutional, and individual customers. At September 30, 1993, Society had
total consolidated assets of approximately $25.8 billion, making it the 29th
largest bank holding company in the United States, in terms of total
consolidated assets and based on data from the American Banker publication. The
first predecessor of a subsidiary of Society was organized in 1849. Society's
lead bank, Society National Bank, is the largest bank in Ohio and one of the
nation's major regional banks, with headquarters in Cleveland, Ohio. Society
National Bank serves markets throughout most of Ohio with 294 full-service
banking offices as of September 30, 1993. Society also has banking subsidiaries
in Indiana and Michigan and a savings bank subsidiary in Florida. These
subsidiaries operate a total of 146 full-service banking offices in Indiana,
Michigan, and Florida. In addition to customary banking services of accepting
funds for deposit and making loans, Society's banking subsidiaries provide a
wide range of specialized services tailored to specific markets, including
investment management, personal and corporate trust services, personal financial
services, cash management services, investment banking services, and
international banking services. Society had one of the nation's largest trust
departments with approximately $25.0 billion in managed assets at September 30,
1993. Although Society is principally a banking organization, its nonbanking
subsidiaries provide insurance sales services, reinsurance of credit life
 
                                        8
<PAGE>   13
 
and accident and health insurance on loans made by subsidiary banks, securities
brokerage services, investment management, corporate and personal trust
services, venture capital and small business investment financing services,
equipment lease financing, registered investment advisory services, mortgage
banking services, community development services, and other financial services.
At September 30, 1993, Society and its subsidiaries had approximately 12,700
full-time equivalent employees. See "BUSINESS OF SOCIETY."
 
     The principal executive offices of KeyCorp are located at One KeyCorp
Plaza, Albany, New York 12201-0088, and its telephone number is (518) 486-8000.
The principal executive offices of Society are located at 127 Public Square,
Cleveland, Ohio 44114-1306, and its telephone number is (216) 689-3000.
 
REASONS FOR THE MERGER; RECOMMENDATIONS OF THE BOARDS OF DIRECTORS
 
     The merger of KeyCorp and Society will create a diversified financial
services company with a national presence by merging two high performing
super-regional bank holding companies. New Key, the combined entity, will be the
tenth largest bank holding company in the United States, based on total pro
forma consolidated assets and on data provided as of September 30, 1993 by the
American Banker publication. New Key will have a significant market position in
15 of the 100 largest metropolitan markets in the United States and its branch
network will be the fifth largest network of banking offices in the United
States. The map on page 31 shows the markets now served by the banks that will
become subsidiaries of New Key and the number of banking offices that such
subsidiaries had at September 30, 1993 in each state where they were conducting
banking operations (including pending acquisitions). The Merger will combine two
companies that currently have high performance records, do not have significant
asset quality problems, as compared to their peer bank group and the industry in
general, have strong management teams each with experience in successfully
completing substantial mergers, maintain compatible data-processing and other
operating systems, and share many cultural traits. The Merger also will permit
each company to diversify beyond its current markets and its current strengths
in specialty financial products and services by expanding the marketing of its
products and services into the markets now served by the other. KeyCorp, for
example, has a strong mortgage banking business and specializes in delivery of
services to small-and medium-sized businesses in local communities. Society has
a strong trust and asset management business and specializes in developing and
delivering products to the large corporate and various specialized industries
markets. Although no assurance can be given, KeyCorp and Society expect that
cost savings will be achieved by New Key at an annual rate of $80 to $105
million by the end of the first quarter of 1995 as a result of steps to be taken
to integrate their operations and to achieve efficiencies in certain combined
lines of business. These anticipated merger cost savings were determined based
upon preliminary estimates provided by major business groups at both Society and
KeyCorp. Merger integration task forces, made up of representatives of both
companies, are in the process of validating these preliminary estimates.
However, it is presently expected that approximately 50% of the anticipated
annualized savings will be achieved in 1994. KeyCorp and Society also anticipate
that they will incur one-time merger expenses and restructuring charges,
estimated to be in the range of $90 to $110 million in the aggregate, in
connection with the Merger. See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
FINANCIAL STATEMENTS."
 
     The Boards of Directors of each of KeyCorp and Society believe for the
reasons set forth herein that the Merger would be in the best interests of each
company's shareholders. See "BACKGROUND AND REASONS FOR THE MERGER."
 
        THE BOARDS OF DIRECTORS OF KEYCORP AND SOCIETY HAVE UNANIMOUSLY
          APPROVED AND ADOPTED THE MERGER AGREEMENT AND RECOMMEND ITS
                   ADOPTION BY THEIR RESPECTIVE SHAREHOLDERS.
 
OPINIONS OF FINANCIAL ADVISORS
 
     Salomon Brothers Inc ("Salomon Brothers") has delivered its written
opinions to KeyCorp's Board of Directors to the effect that, as of the date the
Merger Agreement was signed and as of the date of this Prospectus/Joint Proxy
Statement, the Exchange Ratio pursuant to the Merger Agreement was fair, from a
financial point of view, to the holders of KeyCorp Common Stock. CS First Boston
Corporation ("CS First Boston") has delivered its written opinions to Society's
Board of Directors that, as of the date the Merger
 
                                        9
<PAGE>   14
 
Agreement was signed and as of the date of this Prospectus/Joint Proxy
Statement, the Exchange Ratio pursuant to the Merger was fair to holders of
Society Common Stock from a financial point of view. Copies of the opinions of
Salomon Brothers and CS First Boston dated as of the date of this
Prospectus/Joint Proxy Statement are attached hereto as Appendices III and IV,
respectively. The opinions should be read in their entirety for a description of
the procedures followed by, assumptions and qualifications made by, matters
considered by, and limitations imposed on, Salomon Brothers and CS First Boston,
respectively. See also "BACKGROUND OF AND REASONS FOR THE MERGER -- Opinions of
Financial Advisors."
 
BOARD OF DIRECTORS AND CHIEF EXECUTIVE OFFICERS
OF NEW KEY THROUGH DECEMBER 31, 1998
 
     At the Effective Time (as defined herein), the Regulations of New Key (the
"New Key Regulations") provide that the Board of Directors of New Key will have
22 members, divided into three classes. No more than two members of the Board
may be "Insider Directors" (as defined herein). Victor J. Riley, Jr., the
Chairman of the Board, President, and Chief Executive Officer of KeyCorp and
Robert W. Gillespie, the Chairman of the Board, President, and Chief Executive
Officer of Society will each be Directors of New Key and, after consultation
with each other, and with the approval of the respective Boards of Directors of
KeyCorp and Society, have each designated an additional ten individuals to be
members of the New Key Board of Directors. All 22 individuals who will be
members of the Board of Directors of New Key, and the present Board of Directors
affiliation and occupation of each of them, are listed on the table appearing
under the heading "TERMS OF THE MERGER -- Board of Directors and Chief Executive
Officers of New Key through December 31, 1998." Mr. Riley and Mr. Gillespie will
also consult with each other, subject to appropriate Board approval, with
respect to the formation, number and selection of members of, removal from, and
filling of vacancies for, the Executive, Compensation and Organization, Audit,
Nominating, Community Responsibility, and other committees of the Board of
Directors of New Key, and with respect to vacancies arising on its Board of
Directors. Mr. Riley will serve as Chairman of the Board of Directors and
Chairman of the Executive Committee of New Key through December 31, 1998, or
until his earlier failure to continue to be a director of New Key, and Mr.
Gillespie will become Chairman of the Board and Chairman of the Executive
Committee on the date (which in no event shall be later than December 31, 1998)
on which Mr. Riley ceases to hold such positions, subject to Mr. Gillespie's
earlier failure to continue to be a director of New Key. At the Effective Time,
Mr. Riley will be the Chief Executive Officer of New Key for a term expiring on
December 31, 1995, or upon his earlier death, retirement, resignation, or
removal. At the Effective Time, Mr. Gillespie will be the President of New Key
for a term expiring on December 31, 1998, or upon his earlier death, retirement,
resignation, or removal. At such time (which in no event shall be later than
December 31, 1995) as Mr. Riley ceases to hold the separate office of Chief
Executive Officer, Mr. Gillespie will, by virtue of being President, also be the
Chief Executive Officer of New Key through the expiration of his term on
December 31, 1998. On December 31, 1995, Mr. Riley will retire from all
positions he then holds as an officer of New Key or as an officer, director, or
employee of any of its subsidiaries. Notwithstanding anything to the contrary in
the Merger Agreement, any of the provisions relating to the foregoing that are
contained in the Merger Agreement and that, pursuant to the Merger Agreement,
survive the Effective Time, shall be deemed to be automatically amended to the
extent necessary to conform to the provisions of the New Key Articles of
Incorporation and/or the New Key Regulations as either of them may be amended
after the Effective Time in accordance with its respective terms or applicable
law. See "TERMS OF THE MERGER -- Board of Directors and Chief Executive Officers
of New Key through December 31, 1998" and " -- Interests of Certain Persons in
the Merger."
 
TERMS OF THE MERGER
<PAGE>   15
 
<TABLE>
<S>                                     <C>
General..............................   Pursuant to the Merger Agreement, at the Effective
                                        Time, KeyCorp will be merged into and with Society,
                                        with Society as the surviving corporation under New
                                        Key's name. See "TERMS OF THE MERGER -- General." For
                                        information on how KeyCorp shareholders will be able
                                        to exchange certificates representing shares of
                                        KeyCorp Common Stock and Depositary Receipts (the
                                        "KeyCorp Depositary Receipts") evidencing KeyCorp
                                        Depositary Shares each representing a one-fifth
                                        interest in a share of KeyCorp Preferred Stock for
 
</TABLE>
                                       10
 <PAGE>
<PAGE>
 
<TABLE>
<S>                                     <C>
                                        new certificates representing the shares of New Key
                                        Common Stock and New Key Depositary Receipts (the
                                        "New Key Depositary Receipts") evidencing the New Key
                                        Depositary Shares which will represent the New Key
                                        Preferred Stock to be issued to them, as the case may
                                        be, see "TERMS OF THE MERGER -- Surrender of
                                        Certificates and Depositary Receipts."
Effective Time.......................   The Merger is expected to be consummated during the
                                        first quarter of 1994, although the timing is subject
                                        to the receipt of regulatory approvals and the
                                        satisfaction of other conditions. The Merger will be
                                        consummated after shareholder adoption of the Merger
                                        Agreement, receipt of regulatory approvals, and
                                        satisfaction or waiver of all other conditions under
                                        the Merger Agreement. The time and date at which the
                                        Merger is consummated is referred to herein as the
                                        "Effective Time." See "TERMS OF THE MERGER --
                                        Effective Time"; "-- Conditions to the Merger" and
                                        "-- Regulatory Approvals."
Conversion of KeyCorp Capital
  Stock..............................   At the Effective Time, each outstanding share of
                                        KeyCorp Common Stock will be converted into 1.205
                                        shares of New Key Common Stock (the "Exchange
                                        Ratio"), with cash being paid in lieu of issuing
                                        fractional shares of New Key Common Stock to
                                        shareholders who properly exercise dissenters'
                                        rights, and each outstanding share of KeyCorp
                                        Preferred Stock will be converted into one share of
                                        New Key Preferred Stock and each share of New Key
                                        Preferred Stock will be represented by five New Key
                                        Depositary Shares. All references to the New Key
                                        Common Stock in this Prospectus/Joint Proxy Statement
                                        include the associated rights ("New Key Rights") to
                                        purchase New Key Common Stock pursuant to a Rights
                                        Agreement, dated as of August 25, 1989, between
                                        Society and Society National Bank, as rights agent
                                        (the "Society Rights Agent"), as amended (the
                                        "Society Rights Agreement" and, after the Merger, the
                                        "New Key Rights Agreement"); each share of New Key
                                        Common Stock issued to shareholders of KeyCorp in the
                                        Merger will be accompanied by one New Key Right which
                                        will be evidenced by the certificate for the New Key
                                        Common Stock. The terms, designations, preferences,
                                        limitations, privileges, and rights of the New Key
                                        Preferred Stock and the KeyCorp Preferred Stock are
                                        identical except for certain non-material technical
                                        differences. See "TERMS OF THE MERGER -- Conversion
                                        of KeyCorp Capital Stock; Effects on Society
                                        Shareholders" and "-- Certain Federal Income Tax
                                        Consequences"; "DESCRIPTION OF NEW KEY CAPITAL STOCK
                                        -- New Key Common Stock" and "-- New Key Preferred
                                        Stock and New Key Depositary Shares"; "COMPARISON OF
                                        CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF
                                        KEYCORP, SOCIETY, AND NEW KEY -- No Material
                                        Differences in Rights of Holders of New Key Preferred
                                        Stock and KeyCorp Preferred Stock" and "RIGHTS OF
                                        DISSENTING SHAREHOLDERS."
Effects on Society Shareholders......   At the Effective Time, each share of Society Common
                                        Stock then issued and outstanding will continue as
                                        one share of New Key Common Stock, and will continue
                                        to be accompanied by one New Key Right under the New
                                        Key Rights Agreement, subject to rights of dissenting
                                        shareholders.
</TABLE>
 
                                       11
<PAGE>   16
 
<TABLE>
<S>                                     <C>
Dissenters' Rights...................   Holders of KeyCorp Common Stock may, by complying
                                        with Section 623 of the New York Business Corporation
                                        Law, exercise dissenters' rights. Holders of KeyCorp
                                        Preferred Stock, represented by the related KeyCorp
                                        Depositary Shares, are not, as such, entitled to
                                        dissenters' rights under the New York Business
                                        Corporation Law. Holders of Society Common Stock may,
                                        by complying with Section 1701.85 of the Ohio General
                                        Corporation Law, exercise dissenters' rights. Failure
                                        to comply precisely with the requirements of the
                                        applicable statutes will result in the loss of
                                        dissenters' rights. See "RIGHTS OF DISSENTING
                                        SHAREHOLDERS."
NYSE Listing.........................   Society has agreed to use its best efforts to cause
                                        the listing on the NYSE of (a) the New Key Common
                                        Stock issued in the Merger, (b) the New Key Rights
                                        which will accompany the shares of New Key Common
                                        Stock issued in the Merger, and (c) the New Key
                                        Depositary Shares, each representing a one-fifth
                                        interest in one share of the New Key Preferred Stock
                                        issued in the Merger.
Conditions; Regulatory Approvals.....   Consummation of the Merger is conditioned upon
                                        adoption of the Merger Agreement by the requisite
                                        votes of holders of shares of KeyCorp Common Stock
                                        and Society Common Stock as set forth herein; receipt
                                        of all necessary material approvals of the Merger by
                                        governmental regulatory agencies, including the
                                        Federal Reserve Board, and bank and/or insurance
                                        regulatory agencies in Alaska, Arizona, Colorado,
                                        Idaho, Maine, New York, Oregon, Utah, Washington, and
                                        Wyoming, applications for which have been filed;
                                        receipt by each party of a favorable tax opinion from
                                        its legal counsel; receipt of letters from Ernst &
                                        Young to the effect that the Merger qualifies for
                                        pooling of interests accounting treatment; the
                                        continuing accuracy of the representations and
                                        warranties of each party; performance of specified
                                        obligations by each party; and other conditions. See
                                        "TERMS OF THE MERGER -- Conditions to the Merger" and
                                        "-- Regulatory Approvals."
Termination of the Merger
  Agreement..........................   The Merger Agreement may be terminated, and the
                                        Merger abandoned, prior to the Effective Time,
                                        whether before or after its adoption by the
                                        shareholders of KeyCorp and Society (a) by the
                                        respective majority votes of the Boards of Directors
                                        of both KeyCorp and Society, or (b) by either Board
                                        of Directors under certain specified circumstances,
                                        including if the Merger shall not have been
                                        consummated by December 31, 1994. See "TERMS OF THE
                                        MERGER -- Waiver of Conditions, Amendment, or
                                        Termination of the Merger Agreement."
Tax and Accounting Treatment
  of the Merger......................   Consummation of the Merger is conditioned upon
                                        receipt by KeyCorp and Society of opinions from their
                                        respective legal counsel substantially to the effect
                                        that the Merger will constitute a tax-free
                                        reorganization within the meaning of Section
                                        368(a)(1)(A) of the Internal Revenue Code of 1986, as
                                        amended (the "Internal Revenue Code"). Because the
                                        Merger will be a tax-free reorganization, no income,
                                        gain, or loss will be recognized by a shareholder of
                                        KeyCorp upon the exchange of shares of KeyCorp Common
                                        Stock for New Key Common Stock (including the New Key
                                        Rights) or shares of
</TABLE>
 
                                       12
<PAGE>   17
 
<TABLE>
<S>                                     <C>
                                        KeyCorp Preferred Stock for New Key Preferred Stock
                                        pursuant to the Merger, except that income, gain, or
                                        loss will be recognized by a holder of KeyCorp Common
                                        Stock upon exercise of dissenters' rights or upon
                                        receipt of cash in lieu of a fractional share of New
                                        Key Common Stock. There will be no tax consequences
                                        to a holder of Society Common Stock as a result of
                                        the Merger except that income, gain, or loss will be
                                        recognized by a holder of Society Common Stock on
                                        receipt of cash upon exercise of dissenters' rights.
                                        Consummation of the Merger is also conditioned upon
                                        receipt by KeyCorp and Society of letters from Ernst
                                        & Young to the effect that the Merger will qualify
                                        for pooling of interests accounting treatment. See
                                        "TERMS OF THE MERGER -- Certain Federal Income Tax
                                        Consequences"; "-- Accounting Treatment of Merger"
                                        and "RIGHTS OF DISSENTING SHAREHOLDERS."
New Key Amended and Restated Articles
  of Incorporation and Regulations of
  New Key............................   At the Effective Time, as a consequence of the
                                        adoption of the Merger Agreement by the shareholders
                                        of KeyCorp and Society, the Society Articles of
                                        Incorporation (as defined herein) will be amended and
                                        restated, and will become the Amended and Restated
                                        Articles of Incorporation of New Key (the "New Key
                                        Articles of Incorporation"), a copy of which is
                                        included as Exhibit I to the Plan of Merger attached
                                        hereto as Appendix I. The New Key Articles of
                                        Incorporation will authorize 900,000,000 shares of
                                        New Key Common Stock, 25,000,000 shares of New Key
                                        Serial Preferred Stock, and 1,400,000 shares of New
                                        Key Preferred Stock. The New Key Articles of
                                        Incorporation will (a) provide that holders of New
                                        Key Common Stock will not have preemptive rights or
                                        the right to cumulate their voting power, (b) contain
                                        an "opt-out" from the provisions of Ohio's control
                                        share acquisition statute, and (c) generally reduce
                                        any requisite shareholder vote of two-thirds of the
                                        voting power to a majority vote, except that there is
                                        no reduction in the vote of shareholders required to
                                        approve a transaction which requires shareholder
                                        approval under the Ohio Interested Shareholder
                                        Transaction Law. See "AMENDED AND RESTATED ARTICLES
                                        OF INCORPORATION AND REGULATIONS OF NEW KEY." The
                                        Society Regulations (as defined herein) will also be
                                        amended and restated at the Effective Time, as a
                                        consequence of the adoption of the Merger Agreement
                                        by the shareholders of KeyCorp and Society, and will
                                        become the New Key Regulations, a copy of which is
                                        included as Exhibit II to the Plan of Merger attached
                                        hereto as Appendix I. The New Key Regulations will
                                        provide, among other things, for specific procedures
                                        regarding the nomination, election, and removal of
                                        certain persons as members of the Board of Directors,
                                        certain committees of the Board of Directors, and
                                        management of New Key through December 31, 1998.
                                        Regulations under Ohio law are similar to by-laws
                                        under New York law. For a detailed description of
                                        these and other provisions of the New Key
                                        Regulations, see "TERMS OF THE MERGER -- Board of
                                        Directors and Chief Executive Officers of New Key
                                        through December 31, 1998" and "AMENDED AND RESTATED
                                        ARTICLES OF
</TABLE>
 
                                       13
<PAGE>   18
 
   
<TABLE>
<S>                                     <C>
                                        INCORPORATION AND REGULATIONS OF NEW KEY."
Interests of Certain Persons in
  the Merger.........................   If the Merger is consummated, new employment
                                        agreements between New Key and each of Messrs. Riley
                                        and Gillespie will become effective with terms
                                        running from the Effective Time through December 31,
                                        1998. In addition, as a result of the Merger, 40
                                        other key employees of KeyCorp and 27 other key
                                        employees of Society will become entitled to certain
                                        rights under existing employment, severance, and
                                        change of control agreements. The Boards of Directors
                                        of KeyCorp and Society, however, are presently
                                        considering possible executive retention programs
                                        which may involve the offer to a number of such
                                        employees of alternative arrangements. Not later than
                                        the Effective Time, KeyCorp will fully fund certain
                                        trusts to secure payment of certain severance,
                                        deferred compensation, supplemental retirement, and
                                        other benefits to key employees and directors of
                                        KeyCorp. See "TERMS OF THE MERGER -- Interests of
                                        Certain Persons in the Merger -- Interests of KeyCorp
                                        Directors and Executive Officers" and "-- Interests
                                        of Society Executive Officers."
SHAREHOLDER MEETINGS
Date, Time, and Place................   The KeyCorp Meeting will be held on February 16,
                                        1994, at 8:00 a.m., local time, at the KeyCorp Tower,
                                        30 South Pearl Street, Albany, New York. The Society
                                        Meeting will be held on the same date at 9:30 a.m. at
                                        The Forum Conference Center, One Cleveland Center,
                                        1375 East Ninth Street, Cleveland, Ohio. See "SPECIAL
                                        MEETING OF KEYCORP SHAREHOLDERS -- Date, Time, and
                                        Place" and "SPECIAL MEETING OF SOCIETY SHAREHOLDERS
                                        -- Date, Time, and Place."
Purpose of Meetings..................   The purpose of both the KeyCorp Meeting and the
                                        Society Meeting is to vote on the adoption of the
                                        Merger Agreement providing for the Merger of KeyCorp
                                        into and with Society, with Society as the surviving
                                        corporation under New Key's name. In addition, under
                                        applicable law, the adoption of the Merger Agreement
                                        by the shareholders of KeyCorp and Society will
                                        constitute the adoption of the New Key Articles of
                                        Incorporation and the New Key Regulations, which are
                                        set forth as exhibits to, and are parts of, the Plan
                                        of Merger attached hereto as Appendix I. See "SPECIAL
                                        MEETING OF KEYCORP SHAREHOLDERS -- Purpose of
                                        Meeting"; "SPECIAL MEETING OF SOCIETY SHAREHOLDERS --
                                        Purpose of Meeting" and "AMENDED AND RESTATED
                                        ARTICLES OF INCORPORATION AND REGULA-TIONS OF NEW
                                        KEY."
Shares Outstanding and Entitled
  to Vote; Record Date...............   Shares of KeyCorp Common Stock are the only shares
                                        entitled to vote at the KeyCorp Meeting and the
                                        shares of Society Common Stock are the only shares
                                        entitled to vote at the Society Meeting. December 28,
                                        1993, is the record date for the KeyCorp Meeting and
                                        the Society Meeting (the "Record Date"); on that date
                                        there were 101,826,896 shares of KeyCorp Common Stock
                                        outstanding and 117,337,789 shares of Society Common
                                        Stock outstanding. See "SPECIAL MEETING OF
</TABLE>
    
 
                                       14
<PAGE>   19
 
   
<TABLE>
<S>                                     <C>
                                        KEYCORP SHAREHOLDERS -- Shares Outstanding and
                                        Entitled to Vote; Record Date" and "SPECIAL MEETING
                                        OF SOCIETY SHAREHOLDERS -- Shares Outstanding and
                                        Entitled to Vote; Record Date."
Votes Required.......................   The affirmative votes of two-thirds of the shares of
                                        KeyCorp Common Stock outstanding on the Record Date
                                        and a majority of the shares of Society Common Stock
                                        outstanding on the Record Date are required to adopt
                                        the Merger Agreement. See "SPECIAL MEETING OF KEYCORP
                                        SHAREHOLDERS -- Vote Required" and "SPECIAL MEETING
                                        OF SOCIETY SHAREHOLDERS -- Vote Required."
Shares Owned by Directors, Executive
  Officers, and Certain Subsidiaries
  of KeyCorp and Society.............   As of the Record Date, KeyCorp's directors, executive
                                        officers, and their affiliates owned and were
                                        entitled to vote 1,828,013 shares at the KeyCorp
                                        Meeting, which represent 2.7% of the total number of
                                        KeyCorp shareholder votes necessary to adopt the
                                        Merger Agreement. As of the Record Date, Society's
                                        directors, executive officers, and their affiliates
                                        owned and were entitled to vote 1,230,577 shares at
                                        the Society Meeting, which represent 2.1% of the
                                        total number of Society shareholder votes necessary
                                        to adopt the Merger Agreement. In addition, as of the
                                        Record Date, trust departments of one or more
                                        subsidiaries of KeyCorp, in a fiduciary capacity for
                                        third parties, had sole voting and dispositive power
                                        or shared voting and dispositive power as to
                                        2,306,487 shares of KeyCorp Common Stock or 2.3% of
                                        the outstanding KeyCorp Common Stock and 16,300
                                        shares of Society Common Stock or 0.01% of the
                                        outstanding Society Common Stock. Also, as of the
                                        Record Date, the trust departments of one or more
                                        subsidiaries of Society, in a fiduciary capacity for
                                        third parties, had sole or shared voting power as to
                                        115,548 shares of KeyCorp Common Stock or 0.11% of
                                        the outstanding KeyCorp Common Stock and 6,469,266
                                        shares of Society Common Stock or 5.51% of the
                                        outstanding Society Common Stock. As of the Record
                                        Date, 12,170,471 shares of Society Common Stock or
                                        10.37% of the outstanding Society Common Stock, were
                                        held under Society's Employee Stock Purchase and
                                        Savings Plan (the "Society ESOP") and such shares
                                        will be voted by the trustee of the Society ESOP as
                                        named fiduciary in accordance with directions given
                                        by such participants and beneficiaries under the
                                        Society ESOP. See "SPECIAL MEETING OF KEYCORP
                                        SHAREHOLDERS -- Vote Required" and "SPECIAL MEETING
                                        OF SOCIETY SHAREHOLDERS -- Vote Required."
KEYCORP AND SOCIETY STOCK OPTION AGREEMENTS AND SHAREHOLDER RIGHTS AGREEMENTS
Option Agreements....................   As an inducement to Society to enter into the Merger
                                        Agreement, KeyCorp and Society entered into the
                                        KeyCorp Stock Option Agreement, dated as of October
                                        2, 1993 (the "KeyCorp Option Agreement"), pursuant to
                                        which KeyCorp granted Society an option (the "KeyCorp
                                        Option") to purchase from KeyCorp up to 19.9% of the
                                        KeyCorp Common Stock outstanding as of October 1,
                                        1993 (without giving effect to the exercise of the
                                        option), or 20,229,509 shares of KeyCorp Common
                                        Stock, at a price of $38.50 per share (the closing
</TABLE>
    
 
                                       15
<PAGE>   20
 
   
<TABLE>
<S>                                     <C>
                                        price of KeyCorp Common Stock on October 1, 1993).
                                        Society may exercise the KeyCorp Option only upon the
                                        occurrence of certain events (none of which has
                                        occurred) and upon obtaining any regulatory approvals
                                        necessary for the acquisition of the KeyCorp Common
                                        Stock subject to the KeyCorp Option. At the request
                                        of Society, under limited circumstances (none of
                                        which has occurred), KeyCorp will repurchase for a
                                        formula price the KeyCorp Option and any shares of
                                        KeyCorp Common Stock purchased upon exercise of the
                                        KeyCorp Option and beneficially owned by Society at
                                        that time. See "KEYCORP AND SOCIETY STOCK OPTION
                                        AGREEMENTS AND SHAREHOLDER RIGHTS AGREEMENTS; RESALES
                                        OF NEW KEY CAPITAL STOCK -- The KeyCorp and Society
                                        Option Agreements."
                                        As an inducement to KeyCorp to enter into the Merger
                                        Agreement, Society and KeyCorp entered into the
                                        Society Corporation Stock Option Agreement, dated as
                                        of October 2, 1993 (the "Society Option Agreement"
                                        and, together with the KeyCorp Option Agreement, the
                                        "Option Agreements"), pursuant to which Society
                                        granted KeyCorp an option (the "Society Option") to
                                        purchase from Society up to 19.9% of the Society
                                        Common Stock outstanding as of October 1, 1993
                                        (without giving effect to the exercise of the
                                        option), or 23,299,888 shares of Society Common
                                        Stock, at a price of $32.50 per share (the closing
                                        price of Society Common Stock on October 1, 1993).
                                        KeyCorp may exercise the Society Option only upon the
                                        occurrence of certain events (none of which has
                                        occurred) and upon obtaining any regulatory approvals
                                        necessary for the acquisition of the Society Common
                                        Stock subject to the Society Option. At the request
                                        of KeyCorp, under limited circumstances (none of
                                        which has occurred), Society will repurchase for a
                                        formula price the Society Option and any shares of
                                        Society Common Stock purchased upon exercise of the
                                        Society Option and beneficially owned by KeyCorp at
                                        that time. See "KEYCORP AND SOCIETY STOCK OPTION
                                        AGREEMENTS AND SHARE-HOLDER RIGHTS AGREEMENTS;
                                        RESALES OF NEW KEY CAPITAL STOCK -- The KeyCorp and
                                        Society Option Agreements."
                                        The terms of the KeyCorp Option Agreement and the
                                        Society Option Agreement are identical in all
                                        material respects.
The KeyCorp Rights Agreement and The
  Third Amendment to the Society
  Rights Agreement...................   Concurrently with the execution of the Merger
                                        Agreement, KeyCorp entered into the KeyCorp Rights
                                        Agreement, pursuant to which holders of KeyCorp
                                        Common Stock received a dividend of certain rights
                                        (the "KeyCorp Rights") which, upon the occurrence of
                                        certain events (none of which has occurred), are
                                        exercisable for certain securities of KeyCorp. The
                                        KeyCorp Rights Agreement is generally similar in
                                        purpose and effect to the Society Rights Agreement
                                        previously adopted by Society. The KeyCorp Rights
                                        Agreement provides that, with certain exceptions,
                                        Society will not become an "Acquiring Person," and
                                        that no "Flip-in Date," "Flip-over Transaction or
                                        Event," "Separation Time," or "Stock Acquisition
                                        Date" (as
</TABLE>
    
 
                                       16
<PAGE>   21
 
   
<TABLE>
<S>                                     <C>
                                        those terms are defined in the KeyCorp Rights
                                        Agreement) will occur by reason of the Merger
                                        Agreement or the KeyCorp Stock Option Agreement or
                                        the transactions contemplated thereby. The KeyCorp
                                        Rights Agreement will terminate in accordance with
                                        its terms upon the Effective Time. See "KEYCORP AND
                                        SOCIETY STOCK OPTION AGREEMENTS AND SHAREHOLDER
                                        RIGHTS AGREEMENTS; RESALES OF NEW KEY CAPITAL STOCK
                                        -- The KeyCorp Rights Agreement" and "COMPARISON OF
                                        CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF
                                        KEYCORP, SOCIETY, AND NEW KEY -- Shareholder Rights
                                        Plans."
                                        Concurrently with the execution of the Merger
                                        Agreement, Society and the Society Rights Agent
                                        entered into a third amendment to the Society Rights
                                        Agreement (the "Society Rights Agreement Amendment").
                                        The Society Rights Agreement Amendment provides that,
                                        with certain exceptions, for purposes of the
                                        definition of "Acquiring Person" and of the "flip-in"
                                        provision of the Society Rights Agreement, neither
                                        KeyCorp nor any of its affiliates or associates will
                                        be deemed to be the beneficial owner of Society
                                        Common Stock by reason of the Merger Agreement or the
                                        Society Option Agreement or the transactions
                                        contemplated thereby. See "KEYCORP AND SOCIETY STOCK
                                        OPTION AGREEMENTS AND SHAREHOLDER RIGHTS AGREEMENTS;
                                        RESALES OF NEW KEY CAPITAL STOCK -- The Third
                                        Amendment to the Society Rights Agreement" and
                                        "COMPARISON OF CERTAIN RIGHTS OF HOLDERS OF CAPITAL
                                        STOCK OF KEYCORP, SOCIETY, AND NEW KEY -- Shareholder
                                        Rights Plans."
</TABLE>
    
 
                                 MARKET PRICES
 
   
     KeyCorp Common Stock and Society Common Stock are listed for trading on the
NYSE. The information presented in the table below sets forth the closing prices
for KeyCorp Common Stock and Society Common Stock on the NYSE on October 1,
1993, and on December 30, 1993, together with the equivalent value per share of
KeyCorp Common Stock calculated by multiplying the closing prices of Society
Common Stock on such dates by the Exchange Ratio of 1.205 shares of New Key
Common Stock for each share of KeyCorp Common Stock.
    
 
   
<TABLE>
<CAPTION>
                                                               SOCIETY    KEYCORP    EQUIVALENT
                                                               COMMON     COMMON       VALUE
                                                               STOCK      STOCK      PER SHARE
                                                               ------     ------     ----------
<S>                                                            <C>        <C>        <C>
Closing Prices, October 1, 1993..............................  $32.50     $38.50       $39.16
Closing Prices, December 30, 1993............................  29.63      35.38         35.70
</TABLE>
    
 
   
     No assurance can be given as to the market price of New Key Common Stock if
and at the time that the Merger is consummated or when the shares of New Key
Common Stock are actually issued.
    
 
                                       17
<PAGE>   22
 
                            SELECTED FINANCIAL DATA
 
     The following tables set forth selected historical financial data for
KeyCorp and Society for each of the five years in the period ended December 31,
1992, and the nine-month periods ended September 30, 1993 and 1992. Such data
have been derived from, and should be read in conjunction with, the consolidated
financial statements and the unaudited consolidated interim financial statements
of KeyCorp and Society, including the notes thereto, incorporated by reference
in this Prospectus/Joint Proxy Statement. See "INCORPORATION OF CERTAIN
DOCUMENTS BY REFERENCE." Selected unaudited financial information for the nine-
month periods ended September 30, 1993 and 1992, for KeyCorp and Society
includes all adjustments, consisting only of normal recurring adjustments, that,
in the opinion of the managements of KeyCorp and Society, respectively, were
considered necessary for a fair presentation of the consolidated operating
results and financial position for and at the end of such interim periods.
Results for the interim periods are not necessarily indicative of results
expected for the year as a whole. See "AVAILABLE INFORMATION."
 
     The following tables also set forth unaudited pro forma combined selected
financial data for each of the three years in the period ended December 31,
1992, and the nine-month periods ended September 30, 1993 and 1992, giving
effect to the Merger on the basis described in the notes to the unaudited pro
forma condensed combined financial statements included elsewhere herein. The
effect of other pending or recently-completed acquisitions is not expected to be
material to the pro forma combined selected financial data and is not included
therein. See "BUSINESS OF KEYCORP--Pending Acquisitions." Certain pro forma
combined selected financial data are derived from the unaudited pro forma
condensed combined financial statements and should be read in conjunction with
those statements. Pro forma per share amounts are presented based on the
Exchange Ratio of 1.205 shares of New Key Common Stock for each share of KeyCorp
Common Stock. See "UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS."
The pro forma data and ratios set forth in the following tables do not reflect
the merger expenses and restructuring charges anticipated to be incurred by
KeyCorp and Society or the cost savings anticipated to result from the Merger.
The following pro forma data prior to the Effective Time may not be indicative
of the results that actually would have occurred if the Merger had been in
effect during the periods presented or which may be attained in the future. See
"BACKGROUND AND REASONS FOR THE MERGER--Reasons for the Merger--General" and
"NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS."
 
                                       18
<PAGE>   23
 
                            KEYCORP AND SUBSIDIARIES
 
                            SELECTED FINANCIAL DATA
 
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<TABLE>
<CAPTION>
                                        NINE MONTHS ENDED
                                          SEPTEMBER 30,                               YEAR ENDED DECEMBER 31,
                                   ---------------------------     -------------------------------------------------------------
                                      1993         1992(1)(3)      1992(1)(3)      1991(1)(4)(6)     1990(1)(4)      1989(1)(4)
                                   -----------     -----------     -----------     -------------     -----------     -----------
<S>                                <C>             <C>             <C>             <C>               <C>             <C>
CONSOLIDATED SUMMARY OF
  OPERATIONS
  Interest income..............    $ 1,752,179     $ 1,714,337     $ 2,295,357      $ 2,388,478      $ 2,007,446     $ 1,846,098
  Interest expense.............        652,920         746,291         977,071        1,302,677        1,168,804       1,077,740
                                   -----------     -----------     -----------     -------------     -----------     -----------
  Net interest income..........      1,099,259         968,046       1,318,286        1,085,801          838,642         768,358
  Provision for loan losses....        106,226         144,841         190,971          186,116           97,302          94,123
  Noninterest income...........        368,415         311,504         423,659          394,197          283,574         273,951
  Noninterest expense..........        905,166         798,997       1,124,461(2)       953,186          754,410         726,538
                                   -----------     -----------     -----------     -------------     -----------     -----------
  Income before income taxes
    and cumulative effect of
    accounting change..........        456,282         335,712         426,513          340,696          270,504         221,648
  Provision for income taxes...        158,864         108,684         142,238          103,478           75,871          56,806
                                   -----------     -----------     -----------     -------------     -----------     -----------
  Income before cumulative
    effect of accounting
    change.....................        297,418         227,028         284,275          237,218          194,633         164,842
  Cumulative effect of
    accounting change..........             --           6,613(5)        6,613(5)            --               --              --
                                   -----------     -----------     -----------     -------------     -----------     -----------
  Net income...................    $   297,418     $   233,641     $   290,888      $   237,218      $   194,633     $   164,842
                                   -----------     -----------     -----------     -------------     -----------     -----------
                                   -----------     -----------     -----------     -------------     -----------     -----------
  Net income applicable to
    KeyCorp Common Stock.......    $   284,359     $   220,289     $   273,085      $   227,244      $   192,724     $   161,378
                                   -----------     -----------     -----------     -------------     -----------     -----------
                                   -----------     -----------     -----------     -------------     -----------     -----------
  Weighted average shares of
    KeyCorp Common Stock.......        100,466          97,393          97,640           92,821           86,816          86,449
CONSOLIDATED PER SHARE DATA
  APPLICABLE TO KEYCORP COMMON
  STOCK
  Income before cumulative
    effect of accounting
    change.....................    $      2.83     $      2.19     $      2.73      $      2.45      $      2.22     $      1.87
  Net income...................           2.83            2.26            2.80             2.45             2.22            1.87
  Cash dividends declared......            .93             .78            1.04              .95              .89             .84
  Book value at period-end.....          21.23           18.92           19.19            17.50            15.87           14.45
CONSOLIDATED BALANCE SHEET DATA
  AT PERIOD-END
  Investment securities(7).....    $ 5,150,950     $ 4,390,902     $ 4,491,919      $ 5,497,800      $ 4,446,340     $ 4,015,801
  Loans, net of unearned
    income(7)..................     22,075,319      20,060,197      20,014,345       18,726,583       16,140,839      13,197,900
  Allowance for loan losses....        314,402         294,081         279,905          267,603          216,255         169,258
  Total assets.................     32,432,601      30,027,558      30,114,082       28,039,360       23,856,079      19,755,010
  Deposits.....................     26,574,883      24,360,178      24,775,065       22,820,243       19,540,312      15,612,042
  Short-term borrowings........      2,278,336       2,313,013       1,971,945        2,131,880        1,801,483       1,896,567
  Long-term debt...............        830,587         918,029         904,026          760,716          674,202         708,471
  Total shareholders' equity...      2,317,716       2,043,474       2,074,790        1,876,843        1,395,262       1,276,485
 
<CAPTION>
 
                                 1988(1)(4)
                                 -----------
<S>                                <C>
CONSOLIDATED SUMMARY OF
  OPERATIONS
  Interest income..............  $ 1,557,057
  Interest expense.............      855,564
                                 -----------
  Net interest income..........      701,493
  Provision for loan losses....       57,055
  Noninterest income...........      231,472
  Noninterest expense..........      667,292
                                 -----------
  Income before income taxes
    and cumulative effect of
    accounting change..........      208,618
  Provision for income taxes...       48,357
                                 -----------
  Income before cumulative
    effect of accounting
    change.....................      160,261
  Cumulative effect of
    accounting change..........           --
                                 -----------
  Net income...................  $   160,261
                                 -----------
                                 -----------
  Net income applicable to
    KeyCorp Common Stock.......  $   155,426
                                 -----------
                                 -----------
  Weighted average shares of
    KeyCorp Common Stock.......       83,027
CONSOLIDATED PER SHARE DATA
  APPLICABLE TO KEYCORP COMMON
  STOCK
  Income before cumulative
    effect of accounting
    change.....................  $      1.87
  Net income...................         1.87
  Cash dividends declared......          .80
  Book value at period-end.....        13.40
CONSOLIDATED BALANCE SHEET DATA
  AT PERIOD-END
  Investment securities(7).....  $ 3,998,547
  Loans, net of unearned
    income(7)..................   12,353,660
  Allowance for loan losses....      151,445
  Total assets.................   18,592,526
  Deposits.....................   14,331,699
  Short-term borrowings........    1,974,730
  Long-term debt...............      834,794
  Total shareholders' equity...    1,211,122
</TABLE>
 
- ---------------
 
<TABLE>
<S>   <C>
 (1)  On January 15, 1993, KeyCorp merged with Puget Sound Bancorp, a bank holding company based in Tacoma,
      Washington ("PSB"). The transaction was accounted for as a pooling of interests and, accordingly, historical
      financial data for KeyCorp have been restated to include the accounts of PSB.
 (2)  Noninterest expense includes $42.7 million in restructuring charges recorded in the fourth quarter of 1992 in
      connection with the merger with PSB.
 (3)  On September 3, 1992, KeyCorp purchased 48 branches and other business and private banking operations of the
      former Security Pacific Bank-Washington from BankAmerica Corporation. Deposits of $1.3 billion and loans
      totaling $709 million were acquired as part of the transaction.
 (4)  KeyCorp Common Stock-related amounts have been restated to reflect a three-for-two stock split effective
      April 15, 1992.
 (5)  Effective January 1, 1992, KeyCorp adopted SFAS No. 109, "Accounting for Income Taxes."
 (6)  On May 31, 1991, KeyCorp purchased from the Federal Deposit Insurance Corporation certain assets and
      liabilities of Goldome Savings Bank in a regulator-assisted transaction. KeyCorp initially acquired total
      assets of $7.3 billion and assumed deposits of $2.9 billion and borrowings of $4.2 billion. Significant
      amounts of assets were liquidated to repay the borrowings of Goldome.
 (7)  Investment securities and loans, net of unearned income, exclude securities available for sale and loans held
      for sale/putback, respectively.
</TABLE>
 
                                       19
<PAGE>   24
 
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
                              SELECTED FINANCIAL DATA
 
                     (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<TABLE>
<CAPTION>
                                  NINE MONTHS ENDED
                                    SEPTEMBER 30,                               YEAR ENDED DECEMBER 31,
                             ---------------------------     -------------------------------------------------------------
                                1993           1992(1)         1992(1)       1991(1)(2)      1990(1)(2)      1989(1)(2)(3)
                             -----------     -----------     -----------     -----------     -----------     -------------
<S>                          <C>             <C>             <C>             <C>             <C>             <C>
CONSOLIDATED SUMMARY OF
 OPERATIONS
  Interest income........... $ 1,411,193     $ 1,439,693     $ 1,903,434     $ 2,263,873     $ 2,521,399      $ 2,564,120
  Interest expense..........     509,798         600,190         773,047       1,216,713       1,498,953        1,538,031
                             -----------     -----------     -----------     -----------     -----------     -------------
  Net interest income.......     901,395         839,503       1,130,387       1,047,160       1,022,446        1,026,089
  Provision for loan
    losses..................      59,080         116,257         147,366         280,047(4)      419,914(5)       212,127
  Noninterest income........     396,147(6)      387,652(7)      501,534(7)      455,064         460,608          361,143
  Noninterest expense.......     790,505         798,793(8)    1,045,951(8)    1,112,493(8)    1,065,087          979,265
                             -----------     -----------     -----------     -----------     -----------     -------------
  Income (loss) before
    income taxes and
    cumulative effect of
    accounting change.......     447,957         312,105         438,604         109,684          (1,947)         195,840
  Provision (credit) for
    income taxes............     157,811          97,401         137,394          33,206         (60,698)          73,994
                             -----------     -----------     -----------     -----------     -----------     -------------
  Income before cumulative
    effect of accounting
    change..................     290,146         214,704         301,210          76,478          58,751          121,846
  Cumulative effect of
    accounting change.......          --              --              --              --           2,714(9)            --
                             -----------     -----------     -----------     -----------     -----------     -------------
  Net income................ $   290,146     $   214,704     $   301,210     $    76,478     $    61,465      $   121,846
                             -----------     -----------     -----------     -----------     -----------     -------------
                             -----------     -----------     -----------     -----------     -----------     -------------
  Net income applicable to
    Society Common Stock.... $   289,108     $   210,034     $   294,984     $    70,229     $    56,313      $   119,876
                             -----------     -----------     -----------     -----------     -----------     -------------
                             -----------     -----------     -----------     -----------     -----------     -------------
  Weighted average shares of
    Society Common Stock....     118,376         117,200         117,349         115,267         115,465          119,730
CONSOLIDATED PER SHARE DATA
 APPLICABLE TO SOCIETY COMMON STOCK
  Income before cumulative
    effect of accounting
    change.................. $      2.44     $      1.79     $      2.51     $       .61     $       .47      $      1.00
  Net income................        2.44            1.79            2.51             .61             .49             1.00
  Cash dividends declared...         .84            .735             .98             .92             .88              .80
  Book value at
    period-end..............       17.15           14.97           15.49           13.82           13.90            14.46
CONSOLIDATED BALANCE SHEET DATA
 AT PERIOD-END
  Investment
    securities(10).......... $ 4,906,794     $ 5,477,912     $ 4,484,381     $ 4,790,470     $ 4,369,366      $ 3,921,756
  Loans, net of unearned
    income(10)..............  17,019,340      15,742,132      16,031,488      16,831,674      18,076,828       18,372,525
  Allowance for loan
    losses..................     484,992         512,736         502,744         525,916         461,039(5)       283,443
  Total assets..............  25,760,633      24,388,881      24,978,302      25,585,558      26,121,369       27,450,103
  Deposits..................  17,764,988      17,327,194      18,658,000      20,014,763      21,394,976       21,763,362
  Short-term borrowings.....   4,291,869       3,817,143       3,110,462       2,955,653       2,188,424        2,961,378
  Long-term debt............   1,077,832         687,121         886,052         463,754         471,086          468,867
  Total shareholders'
    equity..................   2,007,996       1,798,703       1,868,103       1,655,190       1,645,999        1,702,913
 
<CAPTION>
 
                              1988(1)(2)(3)
                              -------------
<S>                          <C>
CONSOLIDATED SUMMARY OF
 OPERATIONS
  Interest income...........   $ 2,222,334
  Interest expense..........     1,292,721
                              -------------
  Net interest income.......       929,613
  Provision for loan
    losses..................       147,324
  Noninterest income........       332,208
  Noninterest expense.......       866,479
                              -------------
  Income (loss) before
    income taxes and
    cumulative effect of
    accounting change.......       248,018
  Provision (credit) for
    income taxes............        43,227
                              -------------
  Income before cumulative
    effect of accounting
    change..................       204,791
  Cumulative effect of
    accounting change.......            --
                              -------------
  Net income................   $   204,791
                              -------------
                              -------------
  Net income applicable to
    Society Common Stock....   $   202,749
                              -------------
                              -------------
  Weighted average shares of
    Society Common Stock....       122,859
CONSOLIDATED PER SHARE DATA
 APPLICABLE TO SOCIETY COMMO
  Income before cumulative
    effect of accounting
    change..................   $      1.65
  Net income................          1.65
  Cash dividends declared...           .68
  Book value at
    period-end..............         14.87
CONSOLIDATED BALANCE SHEET D
 AT PERIOD-END
  Investment
    securities(10)..........   $ 4,041,007
  Loans, net of unearned
    income(10)..............    17,627,298
  Allowance for loan
    losses..................       261,633
  Total assets..............    26,694,487
  Deposits..................    20,506,804
  Short-term borrowings.....     3,543,648
  Long-term debt............       463,086
  Total shareholders'
    equity..................     1,769,754
</TABLE>
 
- ---------------
 
 (1) Society Common Stock-related amounts have been restated to reflect a
     two-for-one stock split effective March 22, 1993.
 
 (2) On March 16, 1992, Society merged with Ameritrust Corporation, a bank
     holding company based in Cleveland, Ohio ("Ameritrust"). That transaction
     was accounted for as a pooling of interests and, accordingly, historical
     financial data for Society have been restated to include the operating
     results of Ameritrust.
 
 (3) On January 5, 1990, Society merged with Trustcorp, Inc., a bank holding
     company based in Toledo, Ohio ("Trustcorp"). That transaction was accounted
     for as a pooling of interests and, accordingly, historical financial data
     for Society have been restated to include the operating results of
     Trustcorp.
 
 (4) The provision for loan losses includes $93.9 million recorded by Ameritrust
     in the fourth quarter of 1991 in connection with the merger with Society.
 
 (5) Ameritrust recorded a special provision for loan losses of $120.0 million
     for the first quarter of 1990 and, as a result of efforts to address asset
     quality issues which arose later in 1990, recorded a substantially higher
     provision of $147.4 million in the fourth quarter of 1990. The level of its
     allowance for loan losses at December 31, 1990, reflected the results of
     its management's extensive review of loan portfolios, with special emphasis
     on commercial real estate loans and media and other highly leveraged
     transactions.
 
 (6) Noninterest income includes a $29.4 million gain on the sale of Ameritrust
     Texas Corporation recorded in the third quarter of 1993.
 
 (7) Noninterest income includes a $20.1 million gain on the sale of branch
     offices and loans recorded in the second quarter of 1992 in connection with
     the merger with Ameritrust and as part of an agreement with the United
     States Department of Justice.
 
 (8) Noninterest expense includes restructuring charges of $50.0 million
     recorded in the first quarter of 1992 and $93.8 million recorded in the
     fourth quarter of 1991 in connection with the Ameritrust merger.
 
 (9) Effective January 1, 1990, Society adopted SFAS No. 96, "Accounting for
     Income Taxes."
 
(10) Investment securities and loans, net of unearned income, exclude securities
     available for sale and mortgage loans held for sale, respectively.
 
                                       20
<PAGE>   25
 
                             KEYCORP AND SUBSIDIARIES AND
                         SOCIETY CORPORATION AND SUBSIDIARIES
 
                  UNAUDITED PRO FORMA COMBINED SELECTED FINANCIAL DATA
 
                        (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                       NINE MONTHS ENDED
                                         SEPTEMBER 30,                      YEAR ENDED DECEMBER 31,
                                  ---------------------------     -------------------------------------------
                                     1993            1992            1992            1991            1990
                                  -----------     -----------     -----------     -----------     -----------
<S>                               <C>             <C>             <C>             <C>             <C>
CONSOLIDATED SUMMARY OF
  OPERATIONS
  Interest income.............    $ 3,163,372     $ 3,154,030     $ 4,198,791     $ 4,652,351     $ 4,528,845
  Interest expense............      1,162,718       1,346,481       1,750,118       2,519,390       2,667,757
                                  -----------     -----------     -----------     -----------     -----------
  Net interest income.........      2,000,654       1,807,549       2,448,673       2,132,961       1,861,088
  Provision for loan losses...        165,306         261,098         338,337         466,163         517,216
  Noninterest income..........        764,562         699,156         925,193         849,261         744,182
  Noninterest expense.........      1,695,671       1,597,790       2,170,412       2,065,679       1,819,497
                                  -----------     -----------     -----------     -----------     -----------
  Income before income taxes
     and cumulative effect of
     accounting change........        904,239         647,817         865,117         450,380         268,557
  Provision for income
     taxes....................        316,675         206,085         279,632         136,684          15,173
                                  -----------     -----------     -----------     -----------     -----------
  Income before cumulative
     effect of accounting
     change...................    $   587,564     $   441,732     $   585,485     $   313,696     $   253,384
                                  -----------     -----------     -----------     -----------     -----------
                                  -----------     -----------     -----------     -----------     -----------
  Weighted average shares of
     New Key Common Stock.....        239,437         234,559         235,005         227,116         220,079
CONSOLIDATED PER SHARE DATA
  APPLICABLE TO NEW KEY COMMON
  STOCK
  Income before cumulative
     effect of accounting
     change...................    $      2.40     $      1.81     $      2.39     $      1.31     $      1.12
  Cash dividends declared.....            .84            .735             .98             .92             .88
  Book value at period-end....          17.39           15.34           15.71           14.17           13.55
CONSOLIDATED BALANCE SHEET
  DATA AT PERIOD-END
  Investment securities.......    $10,057,744     $ 9,868,814     $ 8,976,300     $10,288,270     $ 8,815,706
  Loans, net of unearned
     income...................     39,094,659      35,802,329      36,045,833      35,558,257      34,217,667
  Allowance for loan losses...        799,394         806,817         782,649         793,519         677,294
  Total assets................     58,193,234      54,416,439      55,092,384      53,624,918      49,977,448
  Deposits....................     44,339,871      41,687,372      43,433,065      42,835,006      40,935,288
  Short-term borrowings.......      6,570,205       6,130,156       5,082,407       5,087,533       3,989,907
  Long-term debt..............      1,908,419       1,605,150       1,790,078       1,224,470       1,145,288
  Total shareholders'
     equity...................      4,325,712       3,842,177       3,942,893       3,532,033       3,041,261
</TABLE>
 
                                   See "NOTES TO UNAUDITED PRO FORMA CONDENSED
                                          COMBINED FINANCIAL STATEMENTS."
 
                                       21
<PAGE>   26
 
      UNAUDITED COMPARATIVE PER SHARE BOOK VALUE, MARKET PRICE, DIVIDEND,
                AND EARNINGS DATA AND SELECTED FINANCIAL RATIOS
 
     Based upon the Exchange Ratio of 1.205 shares of New Key Common Stock for
each share of KeyCorp Common Stock outstanding immediately prior to the Merger,
the following table sets forth unaudited comparative per common share book
value, market price, cash dividends declared, income before cumulative effect of
change in accounting principle, and net income data of: (a) Society, (b) New Key
pro forma adjusted to give effect to the Merger as if the Merger had occurred at
January 1, 1990, (c) KeyCorp, and (d) the pro forma equivalent of one share of
KeyCorp Common Stock, in each case adjusted for all stock splits. Also set forth
is a table of certain unaudited selected financial ratios of: (a) KeyCorp, (b)
Society, and (c) New Key pro forma adjusted to give effect to the Merger as if
the Merger had occurred at January 1, 1990. The following information should be
read in conjunction with the historical financial statements of KeyCorp and
Society incorporated by reference in this Prospectus/Joint Proxy Statement and
the unaudited pro forma condensed combined financial statements giving effect to
the Merger appearing elsewhere herein. See "INCORPORATION OF CERTAIN DOCUMENTS
BY REFERENCE"; "AVAILABLE INFORMATION," and "UNAUDITED PRO FORMA CONDENSED
COMBINED FINANCIAL STATEMENTS." The pro forma data prior to the Effective Time
may not be indicative of the results that actually would have occurred if the
Merger had been in effect during the periods presented or which may be attained
in the future.
 
                                       22
<PAGE>   27
 
                  UNAUDITED COMPARATIVE PER COMMON SHARE DATA
 
<TABLE>
<CAPTION>
                                            SOCIETY AND NEW KEY                  KEYCORP
                                          ------------------------     ----------------------------
                                           SOCIETY        NEW KEY                      EQUIVALENT
                                          HISTORICAL     PRO FORMA     HISTORICAL     PRO FORMA (1)
                                          ----------     ---------     ----------     -------------
<S>                 <C>                   <C>            <C>           <C>            <C>
BOOK VALUE
  September 30, 1993 ..................     $17.15        $ 17.39        $21.23          $ 20.95
                1992 ..................      14.97          15.34         18.92            18.48
   December 31, 1992 ..................      15.49          15.71         19.19            18.93
                1991 ..................      13.82          14.17         17.50            17.07
                1990 ..................      13.90          13.55         15.87            16.33
MARKET PRICE (2)
  September 30, 1993 ..................     $32.00        $ 32.00        $37.88          $ 38.56
                1992 ..................      28.25          28.25         33.25            34.04
   December 31, 1992 ..................      32.13          32.13         38.63            38.72
                1991 ..................      24.75          24.75         29.63            29.82
                1990 ..................      16.13          16.13         15.50            19.44
CASH DIVIDENDS DECLARED (2)
  Third quarter 1993 ..................     $  .28        $   .28        $  .31          $   .34
 Second quarter 1993 ..................        .28            .28           .31              .34
  First quarter 1993 ..................        .28            .28           .31              .34
  Third quarter 1992 ..................       .245           .245           .26              .30
 Second quarter 1992 ..................       .245           .245           .26              .30
  First quarter 1992 ..................       .245           .245           .26              .30
 INCOME BEFORE CUMULATIVE EFFECT OF
        CHANGE IN ACCOUNTING PRINCIPLE
  Nine months ended:
  September 30, 1993 ..................     $ 2.44        $  2.40        $ 2.83          $  2.89
                1992 ..................       1.79           1.81          2.19             2.18
         Year ended:
   December 31, 1992 ..................       2.51           2.39          2.73             2.88
                1991 ..................        .61           1.31          2.45             1.58
                1990 ..................        .47           1.12          2.22             1.35
</TABLE>
 
- ---------------
 
(1) The equivalent pro forma per share amounts for KeyCorp Common Stock
    represent, in the cases of book value and income before cumulative effect of
    change in accounting principle, the pro forma amounts for shares of New Key
    Common Stock multiplied by 1.205 (the Exchange Ratio) and, in the cases of
    cash dividends declared and market price, the historical data for shares of
    Society Common Stock multiplied by 1.205 (the Exchange Ratio).
 
(2) The New Key pro forma market price and combined dividends represent Society
    historical market price and dividends. No assurance can be given that
    equivalent dividends will be paid in the future. The amount of future
    dividends payable by New Key will depend upon the earnings and financial
    condition of New Key and other factors, including, without limitation,
    applicable governmental regulations and policies.
 
                                       23
<PAGE>   28
 
                      UNAUDITED SELECTED FINANCIAL RATIOS
 
<TABLE>
<CAPTION>
                                                     NINE MONTHS ENDED
                                                       SEPTEMBER 30,
                                                     -----------------       YEAR ENDED DECEMBER 31,
                                                      1993       1992      ----------------------------
                                                      (1)        (1)        1992       1991       1990
                                                     ------     ------     ------     ------     ------
<S>                                                  <C>        <C>        <C>        <C>        <C>
PERFORMANCE RATIOS
  Return on Average Total Assets:
     KeyCorp.....................................      1.27%      1.12%      1.02%       .89%       .93%
     Society.....................................      1.52       1.21       1.26        .30        .23
     New Key Pro Forma...........................      1.39       1.16       1.13        .60        .54
  Return on Average Total Shareholders' Equity:
     KeyCorp.....................................     18.04%     15.98%     14.70%     14.35%     14.61%
     Society.....................................     20.26      16.74      17.28       4.46       3.59
     New Key Pro Forma...........................     19.13      16.60      15.91       9.31       8.41
  Net Interest Margin:
     KeyCorp.....................................      5.37%      5.29%      5.30%      4.76%      4.65%
     Society.....................................      5.31       5.33       5.33       4.65       4.44
     New Key Pro Forma...........................      5.34       5.31       5.31       4.71       4.53
  Total Shareholders' Equity to Total Assets
     (end of period):
     KeyCorp.....................................      7.15%      6.81%      6.89%      6.69%      5.85%
     Society.....................................      7.79       7.38       7.48       6.47       6.30
     New Key Pro Forma...........................      7.43       7.06       7.16       6.59       6.09
RISK-BASED CAPITAL RATIOS
  Tier I:
     KeyCorp.....................................      8.68%      8.42%      8.64%      7.95%      6.71%
     Society.....................................      8.71       8.16       8.53       7.43       6.85
     New Key Pro Forma...........................      8.69       8.29       8.58       7.70       6.79
  Total Capital:
     KeyCorp.....................................     11.49%     10.87%     11.18%      9.93%      8.93%
     Society.....................................     12.99      11.15      12.39       9.71       9.42
     New Key Pro Forma...........................     12.21      11.00      11.76       9.83       9.20
ASSET QUALITY DATA
  Net Charge-Offs to Average Loans:
     KeyCorp.....................................       .57%       .91%       .99%      1.00%       .65%
     Society.....................................       .61       1.07       1.06       1.23       1.31
     New Key Pro Forma...........................       .59        .98       1.02       1.11       1.02
  Allowance for Loan Losses to Loans (end of
     period):
     KeyCorp.....................................      1.42%      1.47%      1.40%      1.43%      1.34%
     Society.....................................      2.85       3.26       3.14       3.12       2.55
     New Key Pro Forma...........................      2.04       2.25       2.17       2.23       1.98
  Allowance for Loan Losses to Nonperforming
     Loans (end of period):
     KeyCorp.....................................    174.72%    150.46%    137.08%    111.63%    102.35%
     Society.....................................    242.80     129.52     144.17     107.39      78.46
     New Key Pro Forma...........................    210.53     136.44     141.55     108.78      84.78
  Nonperforming Assets to Loans Plus Other Real
     Estate Owned and Other Nonperforming Assets
     (end of period):
     KeyCorp.....................................      1.43%      2.03%      1.99%      2.35%      2.15%
     Society.....................................      1.78       3.61       3.07       3.70       3.66
     New Key Pro Forma...........................      1.58       2.72       2.47       2.98       2.94
</TABLE>
 
                                       24
<PAGE>   29
 
<TABLE>
<CAPTION>
                                                     NINE MONTHS ENDED
                                                       SEPTEMBER 30,
                                                     -----------------       YEAR ENDED DECEMBER 31,
                                                      1993       1992      ----------------------------
                                                      (1)        (1)        1992       1991       1990
                                                     ------     ------     ------     ------     ------
<S>                                                  <C>        <C>        <C>        <C>        <C>
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND
  PREFERRED STOCK DIVIDENDS(2)
  Excluding Interest on Deposits:
     KeyCorp.....................................      4.12x      3.05x      2.98x      2.33x      2.17x
     Society.....................................      4.00       3.76       3.72       1.50         --(3)
     New Key Pro Forma...........................      4.06       3.35       3.31       1.96       1.54
  Including Interest on Deposits:
     KeyCorp.....................................      1.63x      1.40x      1.39x      1.24x      1.23x
     Society.....................................      1.85       1.49       1.54       1.08         --(3)
     New Key Pro Forma...........................      1.73       1.44       1.45       1.17       1.10
</TABLE>
 
- ---------------
 
(1) Ratios for the periods ended September 30, 1993 and 1992, represent
    annualized amounts.
 
   
(2) The ratios of earnings to combined fixed charges and preferred stock
    dividends, excluding interest on deposits, for the year ended December 31,
    1989, were 1.82x for KeyCorp, 1.62x for Society, and 1.71x for New Key pro
    forma. Including interest on deposits, the ratios were 1.20x, 1.12x, and
    1.15x, respectively. For the year ended December 31, 1988, the ratios,
    excluding interest on deposits, were 2.00x for KeyCorp, 1.91x for Society,
    and 1.95x for New Key pro forma, while those including interest on deposits
    were 1.23x, 1.19x, and 1.21x, respectively.
    
 
(3) Earnings were inadequate to cover combined fixed charges and preferred stock
    dividends, both excluding and including interest on deposits, by $7.1
    million for the year ended December 31, 1990.
 
                                       25
<PAGE>   30
 
                                  INTRODUCTION
 
   
     This Prospectus/Joint Proxy Statement is being furnished in connection with
the solicitation of proxies by the Board of Directors of KeyCorp for use at the
KeyCorp Meeting to be held on February 16, 1994. This Prospectus/Joint Proxy
Statement is also being furnished in connection with the solicitation of proxies
by the Board of Directors of Society for use at the Society Meeting to be held
on February 16, 1994. This Prospectus/Joint Proxy Statement also serves as a
prospectus for the New Key Common Stock (including the New Key Rights) and the
New Key Depositary Shares each representing a one-fifth interest in one share of
New Key Preferred Stock which will be issued upon the effectiveness of the
Merger.
    
 
   
     All information contained in this Prospectus/Joint Proxy Statement relating
to KeyCorp has been furnished by KeyCorp, and Society is relying upon the
accuracy of that information. All information contained in this Prospectus/Joint
Proxy Statement relating to Society has been furnished by Society, and KeyCorp
is relying upon the accuracy of that information.
    
 
   
                    SPECIAL MEETING OF KEYCORP SHAREHOLDERS
    
 
DATE, TIME, AND PLACE
 
   
     The KeyCorp Meeting will be held on February 16, 1994, commencing at 8:00
a.m., local time, at The KeyCorp Tower, 30 South Pearl Street, Albany, New York.
    
 
PURPOSE OF MEETING
 
     The purpose of the KeyCorp Meeting is to consider and vote upon the
adoption of the Merger Agreement. The adoption of the Merger Agreement by the
shareholders of KeyCorp (and Society) will also constitute the adoption of the
New Key Articles of Incorporation and New Key Regulations. See "AMENDED AND
RESTATED ARTICLES OF INCORPORATION AND REGULATIONS OF NEW KEY -- General."
 
SHARES OUTSTANDING AND ENTITLED TO VOTE; RECORD DATE
 
   
     The close of business on December 28, 1993 (the "Record Date"), has been
fixed by the Board of Directors of KeyCorp as the record date for the
determination of holders of shares of KeyCorp Common Stock entitled to notice of
and to vote at the KeyCorp Meeting. At the close of business on the Record Date,
there were 101,826,896 shares of KeyCorp Common Stock issued and outstanding
held by 24,120 holders of record. Holders of record of KeyCorp Common Stock on
the Record Date are entitled to one vote per share and are entitled to exercise
dissenters' rights. Holders of KeyCorp Preferred Stock, represented by the
related Depositary Shares, are, as such, not entitled to vote on the Merger
Agreement or to exercise dissenters' rights. See "RIGHTS OF DISSENTING
SHAREHOLDERS -- KeyCorp Shareholders."
    
 
VOTE REQUIRED
 
   
     The affirmative vote of two-thirds of all shares of KeyCorp Common Stock
outstanding on the Record Date is required to adopt the Merger Agreement.
    
 
   
     As of the Record Date, KeyCorp's directors, executive officers, and their
affiliates owned and were entitled to vote 1,828,013 shares at the KeyCorp
Meeting, representing 2.7% of the total number of KeyCorp shareholder votes
necessary to adopt the Merger Agreement. In addition, as of the Record Date, the
trust departments of one or more subsidiaries of KeyCorp had sole voting and
dispositive power, in a fiduciary capacity for third parties, as to 2,215,212
shares of KeyCorp Common Stock or approximately 2.2% of the outstanding KeyCorp
Common Stock. Further, 91,275 shares of KeyCorp Common Stock or approximately
0.1% of the outstanding shares of KeyCorp Common Stock were held by such
subsidiaries under arrangements that provide for the exercise of voting power to
be shared with co-fiduciaries, settlors, beneficiaries, or others. In addition,
as of the Record Date, the trust departments of one or more subsidiaries of
Society had sole voting power, in a fiduciary capacity for third parties, as to
111,548 shares of KeyCorp Common Stock or 0.11% of the outstanding KeyCorp
Common Stock. An additional 4,000 shares of KeyCorp Common Stock or 0.004%
    
 
                                       26
<PAGE>   31
 
   
of the outstanding KeyCorp Common Stock were held by such subsidiaries under
arrangements that provide for the exercise of voting power to be shared with
co-fiduciaries, settlors, beneficiaries, or others.
    
 
   
VOTING, SOLICITATION, AND REVOCATION OF PROXIES
    
 
   
     Proxy cards for use at the KeyCorp Meeting accompany this Prospectus/Joint
Proxy Statement delivered to record holders of KeyCorp Common Stock. A holder of
KeyCorp Common Stock may use his proxy if he does not attend the KeyCorp Meeting
in person or wishes to have his shares voted by proxy even if he does attend the
meeting. The proxy may be revoked in writing by the person giving it at any time
before it is exercised by notice of such revocation to the Secretary of KeyCorp,
or by submitting a proxy having a later date, or by such person appearing at the
KeyCorp Meeting and electing to vote in person. All proxies validly submitted
and not revoked will be voted in the manner specified therein. IF NO
SPECIFICATION IS MADE, THE PROXIES WILL BE VOTED IN FAVOR OF ADOPTION OF THE
MERGER AGREEMENT.
    
 
   
     Under the New York Business Corporation Law and the KeyCorp By-Laws, the
presence, in person or by proxy, of a majority of the outstanding shares of
KeyCorp Common Stock is necessary to constitute a quorum of shareholders to take
action at the KeyCorp Meeting. For these purposes, shares which are present, or
represented by a proxy, at the KeyCorp Meeting will be counted for quorum
purposes regardless of whether the holder of the shares or proxy fails to vote
on the Merger Agreement ("abstentions") or whether a broker with discretionary
authority fails to exercise its discretionary authority to vote shares with
respect to the Merger Agreement ("broker non-votes"). For voting purposes, only
shares voted for the adoption of the Merger Agreement, and neither abstentions
nor broker non-votes, will be counted as voting in favor in determining whether
the Merger Agreement is adopted by the holders of KeyCorp Common Stock. As a
consequence, abstentions and broker non-votes will have the same effect as votes
against adoption of the Merger Agreement.
    
 
   
     KeyCorp will bear the cost of solicitation of proxies from its
shareholders. In addition to using the mails, proxies may be solicited by
personal interview, telephone, and wire. Banks, brokerage houses, other
institutions, nominees, and fiduciaries will be requested to forward their proxy
soliciting material to their principals and obtain authorizations for the
execution of proxies. Officers and other employees of KeyCorp and its
subsidiaries, acting on KeyCorp's behalf, may solicit proxies personally.
KeyCorp has retained Morrow & Company, Inc. ("Morrow") to assist in such
solicitation. The fee of Morrow is estimated not to exceed $40,000, plus
reasonable out-of-pocket costs and expenses. KeyCorp does not expect to pay any
other compensation for the solicitation of proxies, but will, upon request, pay
the standard charges and expenses of banks, brokerage houses, other
institutions, nominees, and fiduciaries for forwarding proxy materials to and
obtaining proxies from their principals. However, no such payment will be made
to any of KeyCorp's subsidiaries acting through their nominees or acting as a
fiduciary.
    
 
   
                    SPECIAL MEETING OF SOCIETY SHAREHOLDERS
    
 
   
DATE, TIME, AND PLACE
    
 
   
     The Society Meeting will be held on February 16, 1994, commencing at 9:30
a.m., local time, at The Forum Conference Center, One Cleveland Center, 1375
East Ninth Street, Cleveland, Ohio.
    
 
   
PURPOSE OF MEETING
    
 
   
     The purpose of the Society Meeting is to consider and vote upon the
adoption of the Merger Agreement and all other matters properly coming before
the Society Meeting which relate to the Merger Agreement and the transactions
contemplated thereby. The adoption of the Merger Agreement by the shareholders
of Society (and KeyCorp) will constitute the adoption of the New Key Articles of
Incorporation and the New Key Regulations. See "AMENDED AND RESTATED ARTICLES OF
INCORPORATION AND REGULATIONS OF NEW KEY -- General."
    
 
                                       27
<PAGE>   32
 
   
SHARES OUTSTANDING AND ENTITLED TO VOTE; RECORD DATE
    
 
   
     The close of business on December 28, 1993, (the "Record Date") has been
fixed by the Board of Directors of Society as the record date for the
determination of holders of shares of Society Common Stock entitled to notice of
and to vote at the Society Meeting. At the close of business on the Record Date,
there were 117,337,789 shares of Society Common Stock issued and outstanding
held by 36,331 holders of record. Holders of record of Society Common Stock on
the Record Date are entitled to one vote per share and are entitled to exercise
dissenters' rights.
    
 
VOTE REQUIRED
 
     The affirmative vote of a majority of all Society Common Stock outstanding
on the Record Date is required to adopt the Merger Agreement.
 
   
     As of the Record Date, Society's directors, executive officers, and their
affiliates owned and were entitled to vote 1,230,577 shares at the Society
Meeting, representing 2.1% of the total number of Society shareholder votes
necessary to adopt the Merger Agreement. In addition, as of the Record Date, the
trust departments of one or more subsidiaries of Society had sole voting power,
in a fiduciary capacity for third parties, as to 5,156,275 shares of Society
Common Stock or 4.39% of the outstanding shares of Society Common Stock. An
additional 1,312,991 shares of Society Common Stock or 1.12% of the outstanding
Society Common Stock were held by such subsidiaries under arrangements that
provide for the exercise of voting power to be shared with co-fiduciaries,
settlors, beneficiaries, or others. In addition, as of the Record Date, the
trust departments of one or more subsidiaries of KeyCorp had sole voting and
dispositive power, in a fiduciary capacity for third parties, as to 200 shares
of Society Common Stock or 0.0002% of the outstanding Society Common Stock.
Also, 16,100 shares of Society Common Stock or 0.01% of the outstanding Society
Common Stock were held by such subsidiaries under arrangements that provide for
the exercise of voting power to be shared with co-fiduciaries, settlors,
beneficiaries, or others. As of the Record Date, 12,170,471 shares of Society
Common Stock or 10.37% of the outstanding Society Common Stock, were held by one
or more trustees, for the Society ESOP, under instruments that provide for the
pass-through of voting rights to participants and beneficiaries under the
Society ESOP. Under the applicable trust agreement, the trustees as named
fiduciaries will vote shares of Society Common Stock, including shares allocated
to participants and shares held by the Society ESOP but not allocated, in
accordance with directions given by those participants and beneficiaries.
    
 
VOTING, SOLICITATION, AND REVOCATION OF PROXIES
 
     Proxy cards for use at the Society Meeting accompany this Prospectus/Joint
Proxy Statement delivered to record holders of Society Common Stock. A Society
shareholder may use his proxy if he is unable to attend the Society Meeting in
person or wishes to have his shares voted by proxy even if he does attend the
meeting. The proxy may be revoked in writing by the person giving it at any time
before it is exercised by notice of such revocation to the Secretary of Society,
or by submitting a proxy having a later date, or by such person appearing at the
Society Meeting and electing to vote in person. All proxies validly submitted
and not revoked will be voted in the manner specified therein. IF NO
SPECIFICATION IS MADE, THE PROXIES WILL BE VOTED IN FAVOR OF ADOPTION OF THE
MERGER AGREEMENT.
 
     Under Society's listing agreement with the NYSE, the presence of a majority
of the outstanding shares of Society Common Stock in person or by proxy is
necessary to constitute a quorum of shareholders for the Society Meeting. For
these purposes, abstentions and broker non-votes are counted in determining the
shares present at a meeting. For voting purposes, only shares voted for the
adoption of the Merger Agreement, and neither abstentions nor broker non-votes,
will be counted as voting in favor in determining whether the Merger Agreement
is adopted by the holders of Society Common Stock. As a consequence, abstentions
and broker non-votes will have the same effect as votes against adoption of the
Merger Agreement.
 
     Society will bear the cost of solicitation of proxies from its
shareholders. In addition to using the mails, proxies may be solicited by
personal interview, telephone, and wire. Banks, brokerage houses, other
institutions, nominees, and fiduciaries will be requested to forward their proxy
soliciting material to their
 
                                       28
<PAGE>   33
 
principals and obtain authorizations for the execution of proxies. Officers and
other employees of Society and its subsidiaries, acting on Society's behalf, may
solicit proxies personally. Society has retained Corporation Investor
Communications, Inc. ("CIC") to assist in such solicitation. The fee of CIC is
estimated not to exceed $14,000, plus reasonable out-of-pocket costs and
expenses. Society does not expect to pay any other compensation for the
solicitation of proxies, but will, upon request, pay the standard charges and
expenses of banks, brokerage houses, other institutions, nominees, and
fiduciaries for forwarding proxy materials to and obtaining proxies from their
principals. However, no such payment will be made to any of Society's
subsidiaries acting through their nominees or acting as a fiduciary.
 
                    BACKGROUND OF AND REASONS FOR THE MERGER
 
BACKGROUND OF THE MERGER
 
     KeyCorp and Society each conducts its banking and financial services
operations in multiple (although different) regions of the United States. Each
historically has expanded its geographic franchise and increased its customer
base and market share by means of acquisition programs, initially on an
intrastate basis, later also on an interstate basis. The acquisition strategies
followed by KeyCorp and Society over the years were strongly influenced and
shaped by the economic conditions in their home states and the banking
legislation governing activities in those states, New York in the case of
KeyCorp and Ohio in the case of Society, as well as in other states.
 
     Under the BHCA, interstate banking acquisitions are prohibited in the
absence of enabling legislation at the state level. New York in 1983 became one
of the first states to adopt legislation permitting acquisition of in-state
banks by out-of-state bank holding companies. The New York statute is not
geographically limited, but has a "reciprocity" requirement under which the home
state of the out-of-state company must enable New York bank holding companies to
acquire banks in that state. Ohio in 1985 adopted a reciprocal law limited
initially to thirteen states in its region and the District of Columbia. New
York was not one of the "regional" states in the Ohio legislation. The Ohio law
included, however, a nationwide "trigger" date of October 1988, at which time it
became virtually identical to the New York law in its effect. Although a number
of other states adopted interstate statutes, almost all these statutes included
geographic limitations (regions) and a reciprocity requirement. Primarily
because of the possibility of incursions by the major New York City banks,
virtually no state in the mid-1980s included New York in the defined region.
Exceptions included Maine and Alaska, which had national statutes.
 
     KeyCorp had been a successful acquiror of upstate New York banks for some
years prior to 1983. In reviewing its alternatives, KeyCorp determined that
markets in New England and in the Pacific Northwest had many of the same
demographic and economic characteristics as the markets it served in upstate New
York. KeyCorp developed a strategy of expanding into such of those markets that
were in states that had permissive legislation reciprocal with that of New York.
KeyCorp then successfully expanded its franchise from its upstate New York base
and Albany headquarters first to Maine in 1984 and to Alaska in 1985, and
subsequently to Colorado, Idaho, Oregon, Utah, Washington, and Wyoming as these
states adopted national statutes. It continued to make acquisitions in New York,
including acquisitions that resulted in its becoming a major mortgage servicer.
 
     Society, based in Cleveland, Ohio, followed a different strategy. It chose
to concentrate its acquisition efforts on in-state transactions in the various
major metropolitan areas in Ohio. Society did not directly undertake interstate
transactions, but did secure significant market positions in Indiana and
Michigan through the acquisitions of Trustcorp, Inc., and Ameritrust
Corporation, companies based in Toledo, Ohio, and Cleveland, Ohio, respectively,
that themselves had earlier executed interstate acquisitions. Both of these
companies had major trust and investment management operations, contributing to
Society's emergence as a major national participant in providing trust and
investment management services. Society's acquisition in 1993 of a thrift based
in Fort Myers, Florida, was its first direct interstate acquisition and in large
part was in furtherance of its expanding trust activities.
 
     Management of each of KeyCorp and Society has been cognizant of the rapidly
changing structure of the United States banking market, fueled in part by the
weakened local economies in areas such as New England
 
                                       29
<PAGE>   34
 
and Texas. Certain bank holding companies had been able to take advantage of the
failure of major banks by acquiring such banks in government-assisted
transactions, as a means of breaking out of regional constraints and beginning
the formation of what could become truly nationwide banking organizations.
Similarly, increased competitive pressures from nonbank participants in the
financial services arena clearly demonstrated the over-capacity that existed in
the banking system and the need to gain economies of scale in areas such as
product development and delivery. The strategies that had proved successful for
KeyCorp and for Society, although initially very different, were beginning to
converge as a result of these external pressures. Society's strategies included
expansion and diversification of its distribution system, particularly on a
geographic basis. KeyCorp's strategies included expansion and deepening of its
product lines. Each had the capability and the financial means to execute these
strategies with acquisitions of smaller companies. Each recognized, however,
that such potential acquisitions were, in many markets, becoming increasingly
expensive and limited in number. Management of each company, by 1990, had
started to consider "breakout" strategies, including the possibility of mergers
of equals, that would position their respective franchises to take full
advantage of this markedly different banking environment and thereby create the
opportunity for enhancing shareholder value.
 
     In the summer of 1990, Mr. Gillespie and Mr. Riley held an informal meeting
in Albany. In the spring and summer of 1991, Mr. Gillespie and Mr. Riley met
again and explored on a preliminary basis the possible combination of KeyCorp
and Society. Each of them visited operations in various locations and met
executives of the other company. A meeting was held on August 8, 1991 in Albany
that involved Messrs. Riley and Gillespie, other executives, and legal counsel
for KeyCorp and Society. These discussions, which were reported to the KeyCorp
and Society Boards of Directors, did not involve financial advisors, did not
lead to any agreements, and were terminated by mutual agreement after the August
8, 1991 meeting.
 
     Both KeyCorp and Society have continued to hold periodic informal
discussions with banking and financial institutions to explore acquisition and
combination possibilities, and each has consummated various such transactions
since 1991.
 
     On July 19, 1993, at a meeting in Cleveland, Mr. Riley and Mr. Gillespie
renewed their discussions of a possible combination of KeyCorp and Society. Over
the course of meetings and other discussions with each other during September
1993, Mr. Riley and Mr. Gillespie tentatively resolved a number of basic issues
for such a combination, including the name and the headquarters location of the
proposed combined entity and an approach to governance issues, including their
own respective positions, succession, and tenure, choices as to other senior
management, and the basis upon which the Board of Directors of the combined
entity would be selected. Mr. Riley and Mr. Gillespie reported these meetings to
members of their respective Boards of Directors. Mr. Gillespie brought the
possible combination before the Society Board of Directors at its regular
meeting on September 23, 1993, and received authorization to proceed with
discussions of a possible combination with KeyCorp.
 
     After that meeting, KeyCorp and Society entered into mutual confidentiality
agreements on September 24, 1993, and thereafter conducted due diligence reviews
of each other, reviewed the proposed transaction with their respective financial
advisors, legal counsel, and members of their respective Boards of Directors,
negotiated the terms of the Merger Agreement and related documents, and gave
consideration to the possible financial basis, and detailed other terms, upon
which the transaction might be consummated. At special meetings of the Boards of
Directors of both companies held on the afternoon of Friday, October 1, 1993,
the proposed combination was considered in detail by the Board of Directors of
each company with its respective managements, financial advisors, and legal
counsel. At each meeting, the Merger, the Exchange Ratio, and related
transactions were unanimously approved by all the members of the respective
Board of Directors present, subject to the approval of shareholders, obtaining
necessary regulatory approvals, and the further conditions set forth in the
Merger Agreement.
 
REASONS FOR THE MERGER -- GENERAL
 
     The merger of KeyCorp and Society will create a diversified financial
services company with a national presence by merging two high performing
super-regional bank holding companies. New Key, the combined entity, will have a
significant market position in 15 of the 100 largest metropolitan markets in the
United States. Its branch network will be the fifth largest network of banking
offices in the United States. The map on
 
                                       30
<PAGE>   35
 
this page shows the markets now served by the banks that will become
subsidiaries of New Key and the number of banking offices that such subsidiaries
had at September 30, 1993 in each state where they then were conducting banking
operations. The Merger will combine two companies that currently have high
performance records, do not have significant asset quality problems, as compared
to their peer bank group and the industry in general, have strong management
teams with experience in successfully completing substantial merger
transactions, maintain compatible data-processing and other operating systems,
and share many cultural traits. The Merger also will permit each company to
diversify beyond its current markets and its current strengths in specialty
financial products and services by expanding the marketing of its products and
services into the markets now served by the other. KeyCorp, for example, has a
strong mortgage banking business and specializes in the delivery of services to
small-and medium-sized businesses in local communities. Society has a strong
trust and asset management services business and specializes in developing and
delivering products to the large corporate and various specialized industries
markets. Both KeyCorp and Society believe that the Merger will provide the
opportunity for the combined entity to reach expanded markets for these
complementary, individual business strengths of the two companies.
 
     In addition, although no assurance can be given, KeyCorp and Society expect
that cost savings will be achieved by New Key at an annual rate of $80 to $105
million by the end of the first quarter of 1995 as a result of steps to be taken
to integrate their operations and to achieve efficiencies in certain combined
lines of business. These anticipated merger cost savings were determined based
upon preliminary estimates provided by major business groups at both Society and
KeyCorp. Merger integration task forces, made up of representatives of both
companies, are in the process of validating these preliminary estimates.
However, it is presently expected that approximately 50% of the anticipated
annualized savings will be achieved in 1994. KeyCorp and Society also anticipate
that they will incur one-time merger expenses and restructuring charges,
estimated to be in the range of $90 to $110 million in the aggregate, in
connection with the Merger. See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
FINANCIAL STATEMENTS."
 
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<TABLE>
                                                                              <S>            <C>
                                                                              SEPTEMBER 30, 1993
                                                                              BANKING OFFICES*
                                                                              NEW YORK          339
                                                                              OHIO              294
                                                                              WASHINGTON        191
                                                                              MAINE              96
                                                                              INDIANA            86
                                                                              OREGON             80
                                                                              IDAHO              44
                                                                              MICHIGAN           36
                                                                              UTAH               36
                                                                              WYOMING            27
                                                                              FLORIDA            24
                                                                              ALASKA             20
                                                                              COLORADO           16
                                                                                             ------
                                                                                  TOTAL       1,289
</TABLE>
 
                                               KEYCORP      SOCIETY
                                        *INCLUDING PENDING ACQUISITIONS
- --------------------------------------------------------------------------------
 
                                       31
<PAGE>   36
 
     The Boards of Directors of each of KeyCorp and Society believe for the
reasons set forth below that the Merger would be in the best interests of each
company's shareholders.
 
REASONS FOR THE MERGER -- KEYCORP
 
     At its meeting on October 1, 1993, the Board of Directors of KeyCorp
determined that the Merger and the Merger Agreement are fair to, and in the best
interests of, KeyCorp and its shareholders. In reaching its determination, the
KeyCorp Board of Directors consulted with KeyCorp management, as well as its
financial and legal advisors, and considered a number of factors, including the
following:
 
          (a) The effectiveness of the Merger in implementing and accelerating
     KeyCorp's basic strategy, and changes in the merger and acquisition
     environment that have made acquisitions more difficult and expensive;
 
          (b) The KeyCorp Board of Director's review, based in part on a
     presentation by KeyCorp management regarding (i) its due diligence review
     of Society, including the business, operations, earnings, asset quality,
     financial condition, and corporate culture of Society on a historical,
     prospective, and pro forma basis, (ii) product compatibility, the
     compatibility of corporate goals, and the respective contributions the
     parties would bring to a combined institution, (iii) the enhanced
     opportunities for acquisitions and growth that the Merger makes possible as
     a result of the greater capitalization of the combined entity, and (iv) the
     enhanced opportunities for cost savings and synergies that are expected to
     result from the Merger;
 
          (c) The terms of the Merger Agreement, the KeyCorp Stock Option
     Agreement and the Society Stock Option Agreement, and the other documents
     executed in connection with the Merger, which were reciprocal in nature;
 
          (d) The opinion of Salomon Brothers, discussed elsewhere in this
     Prospectus/Joint Proxy Statement, that as of October 1, 1993, the Exchange
     Ratio was fair, from a financial point of view, to the holders of KeyCorp
     Common Stock;
 
          (e) The opportunity that the Merger provides to strengthen and deepen
     the management team of the combined entity by integrating the already
     strong management teams at both KeyCorp and Society;
 
          (f) KeyCorp's long-term strategy of seeking to expand its operations
     across the entire Northern tier of the United States, and particularly its
     frequently-stated goal of extending its banking operations into the
     Midwest, and to enhance the range of banking services available to its
     customers;
 
          (g) The expectation that the Merger would be tax-free for federal
     income tax purposes to KeyCorp and its shareholders (other than in respect
     of cash paid in lieu of fractional shares and dissenters' shares) and that
     the Merger would be accounted for under the pooling of interests method of
     accounting and, therefore, would not give rise to goodwill; and
 
          (h) The current and prospective economic environment facing financial
     institutions generally and KeyCorp in particular.
 
     In considering the Merger, the KeyCorp Board of Directors determined that
it would better serve KeyCorp's basic business strategy than expansion through
internal growth and/or acquisitions. In particular, the KeyCorp Board of
Directors considered the increased competition in the banking industry, which
had resulted, among other things, in compression of interest rate margins and
thereby diminished prospects for internal growth. The KeyCorp Board of Directors
also took into account the increase in premiums being paid for bank acquisitions
which has made it more difficult to increase shareholder returns from
acquisitions.
 
     The KeyCorp Board of Directors was also aware that KeyCorp could pursue
being acquired by a larger financial institution, now or in the near future,
instead of completing the Merger, and that the acquisition price would have
exceeded the then current market value of KeyCorp Common Stock. The KeyCorp
Board of Directors concluded that this was not the optimum time to pursue being
acquired in such a transaction because existing limitations on interstate
banking and the current circumstances of some large financial institutions
severely limit the number of institutions capable of acquiring KeyCorp now or in
the near future,
 
                                       32
<PAGE>   37
 
and, therefore, the price that could be expected to be paid to KeyCorp
shareholders in connection with any such acquisition was unlikely to be the
highest potentially attainable. The KeyCorp Board therefore determined that
there was no compelling reason to depart from its basic business strategy and
that the Merger enhances that strategy. Although after the Merger New Key would
be the 10th largest bank holding company in the United States (based on total
consolidated assets at September 30, 1993), given the market capitalization of
certain other financial institutions and the consolidations and changes
occurring in the banking and financial services industry, including potential
changes in applicable laws, the Board of Directors of New Key would not be
precluded, if it should determine such a step to be in the best interests of New
Key and the shareholders of New Key, from pursuing a future transaction
involving the acquisition of the combined entity at a price that represented a
premium to the then market value of New Key Common Stock.
 
     The KeyCorp Board of Directors determined that the Merger would best
advance KeyCorp's strategic plan because of its belief that the Merger combined
two financially sound institutions with complementary businesses and business
strategies, thereby creating a stronger combined institution with greater size,
flexibility, breadth of services, efficiency, capital strength, and
profitability than KeyCorp would possess on a stand-alone basis. The KeyCorp
Board of Directors believes that each institution is currently well-managed and
possesses management philosophies and strategic focus that are compatible with
those of the other, that each institution will contribute complementary business
strengths resulting in a well-diversified combined institution, and that the
strong capitalization of the combined institution will allow it to take
advantage of future acquisition opportunities which otherwise may not be
available to either institution individually. The KeyCorp Board of Directors
also believes that the Merger will allow the combined institution to compete
effectively in the rapidly changing marketplace for banking and financial
services and to take advantage of opportunities for growth and diversification
that may not be available to either institution on its own.
 
     The KeyCorp Board of Directors did not assign any specific or relative
weight to the foregoing factors in the course of its consideration.
 
REASONS FOR THE MERGER -- SOCIETY
 
     In reaching its determination that the Merger and the Merger Agreement are
fair to, and in the best interests of, Society and its shareholders, the Society
Board of Directors consulted with Society management, as well as its financial
and legal advisors, and considered a number of factors, including the following:
 
          (a) The effectiveness of the Merger in implementing and accelerating
     Society's basic strategy;
 
          (b) Changes in the acquisition environment that make it increasingly
     more difficult and expensive to make significant non-dilutive acquisitions;
 
          (c) The presentation by Society management regarding its due diligence
     review of KeyCorp, including the business, operations, earnings, asset
     quality, financial condition and performance, regulatory compliance,
     asset-liability management, and operations of KeyCorp on a historical,
     prospective, and pro forma basis;
 
          (d) The enhanced opportunities for cost savings and synergies that are
     expected to result from the Merger;
 
          (e) The enhanced opportunities for growth, including appropriate
     acquisitions, that the Merger makes possible;
 
          (f) Product compatibility, the compatibility of corporate goals, and
     the respective contributions the parties would bring to a combined
     institution;
 
          (g) The terms of the Merger Agreement, the KeyCorp Stock Option
     Agreement and the Society Stock Option Agreement, and the other documents
     executed in connection with the Merger, which were reciprocal in nature;
 
          (h) The opinion of CS First Boston, discussed elsewhere in this
     Prospectus/Joint Proxy Statement, that, as of October 1, 1993, the Exchange
     Ratio pursuant to the Merger was fair to the holders of Society Common
     Stock, from a financial point of view;
 
                                       33
<PAGE>   38
 
          (i) The opportunity that the Merger provides to strengthen and deepen
     the management team of the combined entity by integrating the already
     strong management teams at both Society and KeyCorp;
 
   
          (j) The expectation that the Merger would be tax-free for federal
     income tax purposes to Society and its shareholders (other than in respect
     of cash paid in lieu of dissenters' shares) and that the Merger would be
     accounted for under the pooling of interests method of accounting and,
     therefore, would not give rise to goodwill; and
    
 
   
          (k) The current and prospective economic and competitive environment
     facing financial institutions generally and Society in particular.
    
 
     The Society Board of Directors did not assign any specific or relative
weight to the foregoing factors in the course of its consideration.
 
     The Society Board of Directors determined that the Merger would place
Society in an improved competitive position in the financial markets because of
its belief that the Merger combines two financially sound institutions with
complementary businesses and business strategies, thereby creating a stronger
combined institution with greater size, flexibility, breadth of services,
efficiency, capital strength, and profitability than Society would possess on a
stand-alone basis. The Society Board of Directors believes that each institution
is currently well-managed and possesses management philosophies and strategic
focus compatible with those of the other, that each institution will contribute
complementary business strengths resulting in a well-diversified combined
institution, and that the strong capitalization and diversification of the
combined institution will allow it to take advantage of future opportunities for
growth, including appropriate acquisitions. The Society Board of Directors also
believes that the Merger will allow the combined institution to compete
effectively in the rapidly changing marketplace for banking and financial
services and to take advantage of opportunities for growth and diversification
that may not be available to either institution on its own. In evaluating the
Merger, the Society Board of Directors and management recognized the size of the
transaction, discussed the critical importance of successfully integrating, and
building on the respective strengths of, the management teams and cultures of
both companies in a true merger of equals transaction, and considered the
uncertainties inherent in any such combination of two very large companies,
although both Society and KeyCorp have considerable experience in successfully
effecting substantial merger transactions.
 
OPINIONS OF FINANCIAL ADVISORS
 
     KeyCorp. Salomon Brothers has delivered its written opinions to the KeyCorp
Board of Directors that, as of October 1, 1993 and as of the date of this
Prospectus/Joint Proxy Statement, the Exchange Ratio was fair, from a financial
point of view, to the holders of KeyCorp Common Stock. No limitations were
imposed by the KeyCorp Board of Directors upon Salomon Brothers with respect to
the investigations made or procedures followed by Salomon Brothers in rendering
its opinions.
 
     THE FULL TEXT OF THE OPINION OF SALOMON BROTHERS DATED THE DATE OF THIS
PROSPECTUS/JOINT PROXY STATEMENT, WHICH SETS FORTH ASSUMPTIONS MADE, MATTERS
CONSIDERED, AND LIMITS ON THE REVIEW UNDERTAKEN BY SALOMON BROTHERS, IS ATTACHED
HERETO AS APPENDIX III. KEYCORP SHAREHOLDERS ARE URGED TO READ THIS OPINION IN
ITS ENTIRETY. SALOMON BROTHERS' OPINIONS ARE DIRECTED ONLY TO THE EXCHANGE RATIO
IN THE MERGER AND DO NOT CONSTITUTE RECOMMENDATIONS TO ANY KEYCORP SHAREHOLDER
AS TO HOW SUCH SHAREHOLDER SHOULD VOTE AT THE KEYCORP MEETING. THE SUMMARY SET
FORTH IN THIS PROSPECTUS/JOINT PROXY STATEMENT OF THE OPINIONS OF SALOMON
BROTHERS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL TEXT OF SUCH
OPINIONS. THE OCTOBER 1, 1993 OPINION IS SUBSTANTIALLY IDENTICAL TO THE OPINION
ATTACHED HERETO.
 
     In connection with its opinions, Salomon Brothers reviewed, among other
things: (a) the Merger Agreement and the Option Agreements; (b) certain publicly
available reports filed with the SEC by KeyCorp and Society; (c) certain other
publicly available financial and other information concerning KeyCorp and
Society and the trading markets for the publicly traded securities of KeyCorp
and Society; (d) certain other internal information, including projections,
relating to KeyCorp and Society, prepared by the managements of KeyCorp and
Society and furnished to Salomon Brothers for purposes of its analysis; and (e)
certain publicly available information concerning certain other banks and bank
holding companies, the trading markets for their securities, and the nature and
terms of certain other merger and acquisition transactions Salomon
 
                                       34
<PAGE>   39
 
Brothers believed were relevant to its inquiry. Salomon Brothers also met with
certain officers and representatives of KeyCorp and Society to discuss the
foregoing as well as other matters Salomon Brothers believed were relevant to
its inquiry. Salomon Brothers also considered such financial and other factors
as it deemed appropriate under the circumstances and took into account its
assessment of general economic, market, and financial conditions, and its
experience in similar transactions, as well as its experience in securities
valuation and its knowledge of the banking industry generally. Salomon Brothers'
opinions are necessarily based upon conditions as they existed and could be
evaluated on the respective dates thereof and the information made available to
Salomon Brothers through the respective dates thereof.
 
     In conducting its review and in arriving at its opinions, Salomon Brothers
relied upon and assumed the accuracy and completeness of the financial and other
information provided to it or publicly available and did not attempt
independently to verify the same. Salomon Brothers relied upon the managements
of KeyCorp and Society as to the reasonableness and achievability of the
projections (and the assumptions and bases therefor) provided to Salomon
Brothers, and assumed that such projections reflected the best currently
available estimates and judgments of such managements and that such projections
would be realized in the amounts and in the time periods estimated by such
managements. Salomon Brothers also assumed, without independent verification,
that the aggregate allowances for loan losses for KeyCorp and Society were
adequate to cover such losses. Salomon Brothers did not make or obtain any
evaluations or appraisals of the property of KeyCorp or Society, nor did Salomon
Brothers examine any individual loan credit files. Salomon Brothers was retained
by the KeyCorp Board to express its opinions as to the fairness, from a
financial point of view, to the holders of KeyCorp Common Stock of the Exchange
Ratio in the Merger. Salomon Brothers did not address KeyCorp's underlying
business decision to proceed with the Merger and did not make any recommendation
to the KeyCorp Board of Directors with respect to any approval of the Merger or
to the holders of KeyCorp Common Stock with respect to any approval of the
Merger.
 
     In connection with rendering its opinions to the KeyCorp Board of
Directors, Salomon Brothers performed a variety of financial analyses which are
summarized below. Salomon Brothers believes that its analyses must be considered
as a whole and that selecting portions of such analyses and the factors
considered therein, without considering all factors and analyses, could create
an incomplete view of the analyses and the processes underlying Salomon
Brothers' opinions. The preparation of a fairness opinion is a complex process
involving subjective judgments and is not necessarily susceptible to partial
analyses or summary description. In its analyses, Salomon Brothers also took
into account its assessment of general economic, market, and financial
conditions and its experience in similar transactions, as well as its experience
in securities valuation and its knowledge of the banking industry generally.
With respect to the comparable company analysis and bank merger transaction
analysis summarized below, no public company utilized as a comparison is
identical to KeyCorp or Society and such analyses necessarily involve complex
considerations and judgments concerning the differences in financial and
operating characteristics of the companies and other factors that could affect
the acquisition or public trading values of the companies concerned. Any
estimates contained in Salomon Brothers' analyses are not necessarily indicative
of future results or values, which may be significantly more or less favorable
than such estimates. Estimates of values of companies do not purport to be
appraisals or necessarily reflect the prices at which companies or their
securities actually may be sold. None of the analyses performed by Salomon
Brothers was assigned a greater significance by Salomon Brothers than any other.
 
     The projections reviewed by Salomon Brothers were prepared by the
managements of KeyCorp and Society. Neither KeyCorp nor Society publicly
discloses internal management projections of the type provided to the KeyCorp
Board of Directors and to Salomon Brothers in connection with the review of the
Merger. Such projections were not prepared with a view towards public
disclosure. The projections were based on numerous variables and assumptions
which are inherently uncertain, including without limitation factors related to
general economic and competitive conditions. Accordingly, actual results could
vary significantly from those set forth in such projections.
 
     The following is a brief summary of the analyses performed by Salomon
Brothers in connection with its opinion dated October 1, 1993:
 
          (a) Pro Forma Merger Balance Sheet and Income Statement Analysis.
     Salomon Brothers analyzed certain balance sheet and income statement data
     for KeyCorp and Society on a pro forma combined basis
 
                                       35
<PAGE>   40
 
     at June 30, 1993 and for the 12 months then ended. The analysis showed,
     among other things, that at June 30, 1993, KeyCorp contributed
     approximately 52.0% of the pro forma combined common shareholders' equity
     and 55.6% of pro forma combined total assets (giving effect to the sale by
     Society of its wholly-owned subsidiary, Ameritrust Texas Corporation, to
     Texas Commerce Bancshares, Inc. (the "Ameritrust Texas Sale")), and that
     for the 12 months ended June 30, 1993, KeyCorp contributed approximately
     45.3% of pro forma combined net income to common shareholders. At the
     Exchange Ratio of 1.205 shares of New Key Common Stock for each share of
     KeyCorp Common Stock, the holders of KeyCorp Common Stock will own 51.6% of
     the combined entity. Salomon Brothers noted that the KeyCorp net income
     contribution reflected certain charges related to the acquisition of Puget
     Sound Bancorp during such 12 month period.
 
          (b) Contribution Analysis. Salomon Brothers analyzed certain
     historical balance sheet and income statement data for KeyCorp and Society
     for 1989, 1990, 1991, and 1992, and for KeyCorp and Society on a projected
     basis for 1993 and 1994. The analysis showed, among other things, that for
     1993 and 1994 KeyCorp would have contributed approximately 49.8% and 51.9%,
     respectively, of pro forma combined net income to common shareholders and
     at December 31, 1993 and December 31, 1994 KeyCorp would have contributed
     51.5% and 52.7%, respectively, of pro forma combined tangible common
     shareholders' equity. At the Exchange Ratio of 1.205 shares of New Key
     Common Stock for each share of KeyCorp Common Stock, the holders of KeyCorp
     Common Stock will own 51.6% of the combined entity. Salomon Brothers also
     analyzed the average contributions of KeyCorp and Society over the six year
     period from 1989 through 1994, noting the effects of significant
     acquisitions and related charges during that period.
 
          (c) Exchange Ratio Profile. Salomon Brothers analyzed the ratio of the
     closing prices of KeyCorp Common Stock to Society Common Stock over various
     time periods during the period from September 30, 1988 through September
     30, 1993. The analysis showed that such ratio ranged from 1.3347 to 0.7517
     over the five year period ending September 30, 1993 and ranged from 1.3347
     to 1.1544 over the six month period then ended. This analysis further
     showed that for the two month period ended September 30, 1993, such ratio
     ranged from a high of 1.2520 to a low of 1.1571, with a mean and median
     value of 1.2091. This analysis further showed that, for the two week period
     preceding announcement of the Merger, such ratio ranged from 1.1571 to
     1.2024. The Exchange Ratio is 1.205 shares of New Key Common Stock for each
     share of KeyCorp Common Stock.
 
          (d) Pro Forma Pooling Analyses. Salomon Brothers analyzed, using
     managements' projections as noted above, certain projected balance sheet
     and income statement data for KeyCorp and Society on a pro forma combined
     basis for 1993 and 1994. The analysis showed, among other things, that,
     excluding managements' estimates of cost savings resulting from the Merger,
     holders of KeyCorp Common Stock would receive a 2.2% increase over
     KeyCorp's projected stand-alone earnings per share for 1993, and that such
     common shareholders would receive a 0.2% increase over KeyCorp's projected
     stand-alone earnings per share for 1994. Including managements' estimates
     of cost savings resulting from the Merger, the analysis showed, among other
     things, that holders of KeyCorp Common Stock would receive a 3.7% increase
     over KeyCorp's projected stand-alone earnings per share for 1994. The
     analysis also showed that holders of KeyCorp Common Stock would own 51.6%
     of the combined entity. This analysis further showed that the indicated
     annual dividend per share of KeyCorp Common Stock on a pro forma basis for
     1993 and 1994 would be approximately 8.8% and 6.7% higher, respectively,
     than KeyCorp's projected stand-alone dividend for 1993 and 1994.
 
          (e) Discounted Cash Flow Analysis. Salomon Brothers performed a
     discounted cash flow analysis using assumed growth rates for KeyCorp and
     Society earnings per share of 10% and 14%, discount rates ranging from
     12.0% to 16.0%, terminal price to earnings multiples ranging from 8x to 14x
     to apply to 1998 forecasted earnings, and projecting per share dividend
     growth at the same rate as the assumed earnings per share growth. This
     analysis showed a range of present values per share of KeyCorp Common Stock
     from $29.66 to $ 64.78 and a range of present values per share of Society
     Common Stock from $25.00 to $54.30. In addition, Salomon Brothers performed
     a discounted cash flow analysis for the combined entity on a pro forma
     basis using similar assumptions regarding earnings per share, dividends per
     share, discount rates, terminal price to earnings multiples, and using
     managements' estimate of cost savings resulting
 
                                       36
<PAGE>   41
 
     from the Merger. This analysis showed for each share of KeyCorp Common
     Stock a range of present values of $30.36 to $65.65. This analysis did not
     purport to be indicative of actual values or expected values of the shares
     of KeyCorp Common Stock before or New Key Common Stock after the Merger.
     Salomon Brothers noted that the discounted cash flow analysis was included
     because it is a widely used valuation methodology, but noted that it relies
     on numerous assumptions, including earnings growth rates, dividend payout
     rates, terminal values, and discount rates.
 
          (f) Historical Performance and Comparable Company Analysis. Salomon
     Brothers analyzed the stock price performance of KeyCorp and Society,
     compared to the Standard & Poor's Composite and to the Salomon Brothers'
     Superregional Bank Index, for the years 1988 through 1992 and, for certain
     per share data, projected for 1993 and 1994. Salomon Brothers placed
     greater emphasis on the more recent periods because both KeyCorp's and
     Society's performance were affected by significant acquisitions during the
     period from 1988 through 1991. This analysis showed, among other things,
     that, for 1992 and for projected 1993 and 1994, the price/earnings ratio
     was 11.6x, 10.5x, and 9.2x, respectively, for KeyCorp Common Stock, 11.4x,
     9.8x, and 9.0x, respectively, for Society Common Stock, and 14.0x, 10.7x,
     and 9.6x, respectively, for the Salomon Brothers' Superregional Bank Index,
     and that the price/book ratio was 2.01x, 1.78x, and 1.52x, respectively,
     for KeyCorp Common Stock, 2.07x, 1.93x, and 1.73x, respectively, for
     Society Common Stock and 1.79x for 1992 only for the Salomon Brothers'
     Superregional Bank Index (projected data not available). Salomon Brothers
     analyzed certain credit and operating statistics for KeyCorp, Society, and
     the pro forma combined entity, comparing these statistics to comparable
     data for certain institutions included in the Salomon Brothers'
     Superregional Bank Index. This analysis showed, among other things, that,
     for 1992, the return on average assets for KeyCorp was 1.02%, for Society
     was 1.26%, for the pro forma combined entity was 1.10%, and for the Salomon
     Brothers' Superregional Bank Index was 0.99%; that the return on average
     common equity for KeyCorp was 15.21%, for Society was 17.52%, for the pro
     forma combined entity was 16.22%, and for the Salomon Brothers'
     Superregional Bank Index was 14.20%; and that the ratio of tangible common
     equity to tangible assets for KeyCorp was 5.27%, for Society was 6.26%, for
     the pro forma combined entity was 5.72%, and for the Salomon Brothers'
     Superregional Bank Index was 5.55% (projected data for these ratios not
     available). The institutions included in Salomon Brothers Superregional
     Bank Index are Fleet Financial Group, Inc., Bank of Boston Corp., First
     Fidelity Bancorporation, CoreStates Financial Corp., Mellon Bank
     Corporation, PNC Bank Corp., Banc One Corporation, Comerica Incorporated,
     National City Corporation, NBD Bancorp, Inc., First Bank System, Inc.,
     Norwest Corporation, NationsBank Corporation, First Union Corp., SunTrust
     Banks, Inc., Wachovia Corporation, BankAmerica Corporation, First
     Interstate Bancorp., and Wells Fargo & Company.
 
          (g) Analysis of Other Merger of Equals Transactions. Salomon Brothers
     analyzed other mergers of equals in the United States over the period from
     1987 to September 30, 1993. The merger of equals transactions analyzed
     were: Comerica Incorporated/Manufacturers National Corporation, Chemical
     Banking Corporation/Manufacturers Hanover Corporation, Sovran Financial
     Corporation/The Citizens and Southern Corp., and Fleet Financial Group,
     Inc./Norstar Bancorp Inc. This analysis, which was based on publicly
     available financial information for the 12 months preceding the
     announcement of the transaction, showed an impact on earnings per share
     ranging from dilution of 18.2% to accretion of 0.3%. This analysis also
     showed that the ratio of (i) the ownership of the combined entity by the
     common shareholders of the non-surviving partner in the merger of equals
     transactions analysis by Salomon Brothers to (ii) the net income
     contributed to the combined entity by the non-surviving partner ranged from
     .99x to 1.25x, compared to 1.04x for 1993 and .99x for 1994 for the Merger.
 
     In connection with its opinion dated the date of this Prospectus/Joint
Proxy Statement, Salomon Brothers also confirmed the appropriateness of its
reliance on the analyses used to render its October 1, 1993 opinion by
performing procedures to update certain of such analyses and by reviewing the
assumptions on which such analyses were based and the factors considered in
connection therewith.
 
     Salomon Brothers is a nationally recognized investment banking firm and is
continually engaged in the valuation of businesses and securities in connection
with mergers and acquisitions, negotiated underwritings, competitive biddings,
secondary distributions of listed and unlisted securities, and valuations for
estate,
 
                                       37
<PAGE>   42
 
corporate and other purposes. KeyCorp selected Salomon Brothers as its financial
advisor because of its reputation and because Salomon Brothers has substantial
experience in transactions such as the Merger.
 
     In addition to the financial advisory services referred to above, Salomon
Brothers acted as financial advisor to KeyCorp in connection with its
acquisition of Puget Sound Bancorp in 1993, has acted as agent for KeyCorp's
Medium Term Note program and as managing underwriter for offerings of KeyCorp
Common Stock and KeyCorp Preferred Stock represented by the KeyCorp Depositary
Shares in 1991, and has from time to time provided other financial advisory and
brokerage services to KeyCorp, for all of which Salomon Brothers has received
customary compensation. In the ordinary course of business, Salomon Brothers
makes a market in KeyCorp Common Stock and Society Common Stock and trades the
debt and equity securities of KeyCorp and Society for its own account and for
the account of its customers and may at any time hold a long or short position
in such securities.
 
     KeyCorp and Salomon Brothers have entered into a letter agreement, dated
September 27, 1993 (the "Salomon Engagement Letter"), relating to the services
to be provided by Salomon Brothers in connection with the Merger. KeyCorp has
agreed to pay Salomon Brothers fees as follows: (a) $250,000 upon execution of
the Salomon Engagement Letter (which has been paid), (b) an additional fee of
$1,250,000 upon execution of the Merger Agreement (which has been paid), (c) an
additional fee of $1,500,000 upon the mailing of this Prospectus/Joint Proxy
Statement, and (d) an additional fee equal to $3,000,000 upon the consummation
of the Merger. In the Salomon Engagement Letter, KeyCorp also has agreed to
reimburse Salomon Brothers for its reasonable and necessary out-of-pocket
expenses and to indemnify Salomon Brothers against certain liabilities,
including liabilities under the federal securities laws.
 
     Society. Society retained CS First Boston to act as Society's financial
advisor in connection with the Merger and related matters based upon its
qualifications, expertise, and reputation, as well as CS First Boston's prior
investment banking relationship and familiarity with Society.
 
     On October 1, 1993, at the meeting at which the Society Board of Directors
approved and adopted the Merger Agreement, and as of the date of this
Prospectus/Joint Proxy Statement, CS First Boston delivered opinions to the
Society Board of Directors that, as of such dates, the Exchange Ratio pursuant
to the Merger was fair to the holders of Society Common Stock from a financial
point of view. No limitations were imposed by Society with respect to the
investigations made or the procedures followed by CS First Boston in rendering
its opinions.
 
     THE FULL TEXT OF THE OPINION DATED AS OF THE DATE OF THIS PROSPECTUS/JOINT
PROXY STATEMENT, WHICH SETS FORTH CERTAIN ASSUMPTIONS MADE, MATTERS CONSIDERED,
AND LIMITATIONS ON THE REVIEWS UNDERTAKEN, IS ATTACHED AS APPENDIX IV TO THIS
PROSPECTUS/JOINT PROXY STATEMENT, AND SHOULD BE READ IN ITS ENTIRETY IN
CONNECTION WITH THIS PROSPECTUS/JOINT PROXY STATEMENT. THE SUMMARY OF THE
OPINIONS OF CS FIRST BOSTON SET FORTH IN THIS PROSPECTUS/JOINT PROXY STATEMENT
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE OPINION AS SET FORTH AS
APPENDIX IV. THE OCTOBER 1, 1993 OPINION IS SUBSTANTIALLY IDENTICAL TO THE
OPINION ATTACHED HERETO.
 
     In rendering its opinions, CS First Boston (a) reviewed certain publicly
available business and financial information relating to KeyCorp and Society,
(b) reviewed certain other information, including financial forecasts, provided
to it by KeyCorp and Society, and met with the managements of KeyCorp and
Society to discuss the business of and prospects for KeyCorp and Society,
respectively, (c) reviewed with Society's management the results of its
discussions with KeyCorp's management with respect to the historical and current
operating results and financial condition of and prospects for KeyCorp, (d)
considered certain financial and stock market data for KeyCorp and Society and
for other publicly held bank holding companies, (e) considered the financial
terms of certain business combinations in the commercial banking industry, (f)
considered the views of Society's management with regard to the strategic
aspects of the Merger, (g) analyzed the pro forma effect of the Merger on the
earnings per share, asset quality, consolidated capitalization, funding mix, and
other balance sheet and profitability ratios of KeyCorp and Society, and (h)
considered such other information, financial studies, analyses, and
investigations, and financial, economic, and market criteria that it deemed
relevant.
 
     CS First Boston, in conducting its analyses and in arriving at its
opinions, did not conduct a physical inspection of any of the properties or
assets of KeyCorp and Society and did not make or obtain any
 
                                       38
<PAGE>   43
 
independent evaluation or appraisals of any properties, assets, or liabilities
of KeyCorp and Society. CS First Boston assumed and relied upon the accuracy and
completeness of the financial and other information provided it by KeyCorp's and
Society's managements or publicly available, relied upon the representations and
warranties of KeyCorp and Society made pursuant to the Merger Agreement, and did
not attempt independently to verify any of such information. With respect to the
financial forecasts furnished, CS First Boston assumed without independent
verification that they reflect the best currently available estimates and
judgments of the management of KeyCorp and Society as to the reasonableness and
achievability of future performance of KeyCorp and Society (and the assumptions
and bases therefor). CS First Boston did not examine any of the loan or other
files of KeyCorp or Society, and relied exclusively upon the review with
Society's management of the results of discussions between KeyCorp's and
Society's management and investigations by Society's management regarding (a)
the past and current operations and financial condition and prospects (including
financial projections) of KeyCorp and (b) KeyCorp's loan files. The opinions of
CS First Boston are necessarily based on economic, market, and other conditions
as in effect on, and the information made available to CS First Boston as of,
the dates of its analyses.
 
     The following is a brief summary of the analyses performed by CS First
Boston in connection with rendering its opinion dated October 1, 1993:
 
          Relative Contribution Analysis. In performing relative contribution
     analysis, CS First Boston analyzed the contribution of each of KeyCorp and
     Society to the income statement and balance sheet of the pro forma combined
     company (see "UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL
     STATEMENTS"). Among the various balance sheet and income statement items
     analyzed were the relative contribution to the pro forma company of each of
     KeyCorp's and Society's assets, total loans, deposits, total equity, common
     equity, tangible equity, net income available to common stockholders for
     the six months ended June 30, 1992, and 1993 and 1994 projected net income
     available to common shareholders. 1993 and 1994 estimates of net income
     available to common shareholders were based on estimates of each of
     KeyCorp's and Society's management. In addition, Society's intangible
     account as of June 30, 1993 was adjusted throughout CS First Boston's
     analysis to reflect the estimated effects of the Ameritrust Texas Sale,
     which closed on September 15, 1993. The relative contribution analysis
     produced a range of relative contribution to the pro forma company of a
     maximum of 51% (net income available to common shareholders for the six
     months ended June 30, 1993) and a minimum of 41% (deposits) for Society.
     This analysis implied an exchange ratio in the range of 1.155 to 1.610.
 
          Comparative Market Performance. CS First Boston analyzed the various
     exchange ratios implied by the current and historical trading values of
     each of KeyCorp's and Society's common equity securities. In addition to
     current market value (based on the respective closing price of KeyCorp and
     Society at September 30, 1993), daily closing averages for the prior 30,
     60, 90, and 180 trading day periods were analyzed. The exchange ratios
     implied by these criteria ranged from 1.184 to 1.230. The Exchange Ratio is
     1.205 shares of New Key Common Stock for each share of KeyCorp Common
     Stock.
 
          Comparison of Historical Performance. CS First Boston compared the
     performance of Society to that of KeyCorp on a historical financial basis,
     which included, among other things, a comparison of the two companies using
     profitability, asset quality, and capital adequacy measures. Among other
     things, CS First Boston compared the following ratios: return on assets and
     tangible equity to tangible asset ratios (see "Comparable Company Analysis"
     below); allowance for credit losses to nonperforming loans (which were, as
     of June 30, 1993, 163.69% for KeyCorp and 219.86% for Society); and
     nonperforming assets as a percentage of net loans and leases and foreclosed
     properties (which were, as of June 30, 1993, 1.68% for KeyCorp and 1.96%
     for Society).
 
          Comparable Company Analysis. In performing comparable company
     analysis, CS First Boston analyzed the operating performance of KeyCorp and
     Society relative to (a) Banc One Corp., Comerica Incorporated, Mellon Bank
     Corporation, National City Corporation, NationsBank Corporation, NBD
     Bancorp, Inc., Norwest Corporation, PNC Bank Corp., and U.S. Bancorp (the
     "Comparable Companies") and (b) Banc One Corporation, NationsBank
     Corporation, Norwest Corporation, and PNC Bank Corp. (the "Combined
     Comparable Companies") (using market data as of September 30, 1993 and
     financial data as of the six months ended June 30, 1993 adjusted in certain
     cases to reflect the estimated
 
                                       39
<PAGE>   44
 
     effects of certain publicly announced but pending merger transactions).
     Among the financial information compared was information relating to
     capital adequacy, credit quality, and profitability. Among the market
     trading information compared was (a) market price to reported book value at
     June 30, 1993, which was 1.85x for KeyCorp and 1.93x for Society, and the
     average for the Comparable Companies was 1.78x and the average for the
     Combined Comparable Companies was 1.95x and (b) market price to earnings
     per share estimates for 1993 and 1994 which, for KeyCorp were 9.94x and
     8.83x in 1993 and 1994, respectively, and, for Society were 9.76x and 8.96x
     in 1993 and 1994, respectively, and the average for the Comparable
     Companies was 11.09x and 9.85x in 1993 and 1994, respectively, and the
     average for the Combined Comparable Companies was 11.64x and 10.30x in 1993
     and 1994, respectively. Earnings per share estimates were based on
     Institutional Brokers Estimate System ("IBES") estimates as of September
     17, 1993 (which, for KeyCorp, were $3.81 and $4.29 per common share in 1993
     and 1994, respectively, and which, for Society, were $3.28 and $3.57 per
     common share in 1993 and 1994, respectively). IBES is a data service that
     monitors and publishes a compilation of earnings estimates produced by
     selected research analysts regarding companies of interest to institutional
     investors. Among the profitability and capital ratios compared, (i) return
     on assets for the six months ended June 30, 1993 on an annualized basis,
     was 1.27%, 1.51%, and 1.38% for KeyCorp, Society, and the pro forma
     combined institution, respectively, and averaged 1.25% and 1.34%,
     respectively, for the Comparable Companies and the Combined Comparable
     Companies and (ii) the tangible equity to tangible asset ratio was 6.04%,
     6.73%, and 6.35% for KeyCorp, Society (adjusting Society's leverage ratio
     for the Ameritrust Texas Sale), and the pro forma combined institution,
     respectively, and averaged 6.92% and 6.42%, respectively, for the
     Comparable Companies and the Combined Comparable Companies.
 
          Bank Merger Transaction Analysis. CS First Boston analyzed certain
     financial aspects of recent bank merger transactions. These transactions
     consisted of the mergers between Comerica Incorporated and Manufacturers
     National Corporation, BankAmerica Corp. and Security Pacific Corporation,
     Chemical Banking Corporation and Manufacturers Hanover Corporation, The
     Planters Corporation and Peoples Bancorporation, Sovran Financial
     Corporation and The Citizens & Southern Corporation, and Fleet Financial
     Group Inc. and Norstar Bancorp, Inc. Among the financial terms of the
     transactions analyzed were the relative contributions of the participants
     in terms of assets, book value, and ownership. In the Comerica Incorporated
     and Manufacturers National Corporation transaction, Comerica Incorporated
     contributed 54% and 52%, respectively, of the combined assets and book
     value of the pro forma institution and its shareholders held a 54% pro
     forma ownership therein; in the BankAmerica Corporation and Security
     Pacific Corporation transaction, BankAmerica Corporation contributed 59%
     and 61%, respectively, of the pro forma combined assets and book value of
     the pro forma institution and held a 67% ownership therein; in the Chemical
     Banking Corporation and Manufacturers Hanover Corporation transaction,
     Chemical Banking Corporation contributed 55% and 52%, respectively, of the
     pro forma combined assets and book value of the pro forma institution and
     its shareholders held a 50% ownership therein; in The Planters Corporation
     and Peoples Bancorporation transaction, The Planters Corporation
     contributed 48% and 49%, respectively, of the pro forma combined assets and
     book value of the pro forma institution and held a 50% ownership therein;
     in the Sovran Financial Corporation and The Citizens & Southern Corporation
     transaction, Sovran Financial Corporation contributed 51% and 54%,
     respectively, of the pro forma combined assets and book value of the pro
     forma institution and held a 54% ownership therein; and in the Fleet
     Financial Group Inc. and Norstar Bancorp Inc. transaction, Fleet Financial
     Group Inc. contributed 51% and 51%, respectively, of the pro forma combined
     assets and book value of the pro forma institution and held a 55% ownership
     therein. As of September 30, 1993, Society would contribute 44% and 48% of
     the pro forma combined assets and book value of the pro forma combined
     institution, assuming completion of the Merger on that date, and its
     shareholders would hold a 48% ownership therein.
 
          Pro Forma Merger Analysis. CS First Boston analyzed the estimated
     effect of the Merger on financial projections of KeyCorp and Society
     provided by their respective managements. Society's stand-alone projections
     were compared to pro forma combined company projections for earnings per
     share. This analysis showed initial dilution in earnings per share of 2.0%
     in 1993 and 0.2% per share in 1994. The above referenced analysis made no
     assumption as to, and did not include the effects of, any potential cost
     savings or merger-related restructuring charges and relied upon stand-alone
     earnings and earnings per
 
                                       40
<PAGE>   45
 
     share projections provided by KeyCorp's and Society's respective
     managements. In addition, CS First Boston analyzed capital adequacy, credit
     quality, and reserve coverage ratios for Society on both a stand-alone
     basis and on a pro forma basis assuming consummation of the Merger.
     Furthermore, CS First Boston analyzed Society's position, both prior to and
     pro forma for the Merger, within the banking industry including market
     value, assets, common equity, and profitability. CS First Boston also took
     note of the geographic diversity of Society's loan portfolio and deposit
     franchise in terms of market share of deposits, assets, and branches and
     geographic and industry concentrations in its portfolios both prior to and
     after giving effect to the Merger.
 
     In arriving at its opinion, CS First Boston performed certain financial
analyses, the material portions of which are summarized above. The summary set
forth above does not purport to be a complete description of the analyses
performed by CS First Boston. The analyses performed by CS First Boston are not
necessarily indicative of actual values, which may be significantly more or less
favorable than suggested by such analyses. Additionally, analyses relating to
the values of businesses do not purport to be appraisals or to reflect actual
market valuations or trading ranges, which may vary significantly from amounts
set forth above. Actual trading values will depend on several factors, including
events affecting KeyCorp's and Society's industry, general economic, market and
interest rate conditions, and other factors that generally influence the price
of securities. CS First Boston believes that these analyses and the summary set
forth above must be considered as a whole and that selecting portions of its
analyses could create an incomplete view of the process underlying its opinion.
With respect to the comparable company analysis and bank merger transaction
analysis summarized above, no public company utilized as a comparison is
identical to KeyCorp or Society and such analyses necessarily involve complex
considerations and judgments concerning differences in financial and operating
characteristics of the companies and other factors that could affect the
acquisition or public trading values of the companies analyzed. In performing
their analyses, CS First Boston made numerous assumptions regarding industry
performance, general business, and economic conditions, and other matters, many
of which are beyond the control of KeyCorp or Society. The fact that any
specific analysis has been referred to in the summary above is not meant to
indicate that such analysis was given more weight than any other analyses. In
addition, as described above, CS First Boston's opinion is just one of many
factors taken into consideration by Society's Board of Directors.
 
     In connection with its opinion dated as of the date of this
Prospectus/Joint Proxy Statement, CS First Boston confirmed the appropriateness
of its reliance on the analyses used to render its October 1, 1993 opinion by
performing procedures to update certain of such analyses and by reviewing the
assumptions on which such analyses were based and the factors considered in
connection therewith.
 
     Society and CS First Boston have entered into a letter agreement dated
September 27, 1993 (the "CS First Boston Engagement Letter"), relating to the
services to be provided by CS First Boston in connection with the Merger.
Society has agreed to pay CS First Boston fees as follows: (a) $250,000 upon
execution of the CS First Boston Engagement Letter (which has been paid), (b) an
additional fee of $1,250,000 upon execution of the Merger Agreement (which has
been paid), (c) an additional fee of $1,500,000 upon the mailing of this
Prospectus/Joint Proxy Statement, and (d) an additional fee equal to $3,000,000
upon consummation of the Merger. In the CS First Boston Engagement Letter and a
separate letter agreement dated October 1, 1993, Society has also agreed to
reimburse CS First Boston for its reasonable out-of-pocket expenses and to
indemnify CS First Boston and its affiliates and their respective partners,
directors, officers, employees, agents, and controlling persons against certain
expenses and liabilities, including liabilities under the federal securities
laws.
 
     In addition to the financial advisory services referred to above, CS First
Boston acted as financial advisor to Society in connection with the Ameritrust
Texas Sale and the acquisition of Ameritrust and other companies by Society, has
acted as underwriter or placement agent for Society or its affiliates in respect
of offerings of debt securities during 1992 and 1993, and has from time to time
provided other financial advisory and investment banking services to Society for
all of which CS First Boston has received customary compensation. CS First
Boston has also provided certain financial advisory and investment banking
services to KeyCorp for which CS First Boston has received customary
compensation.
 
                                       41
<PAGE>   46
 
     CS First Boston is a nationally recognized investment banking firm
regularly engaged in the valuation of businesses (including banks and financial
institutions) and their securities in connection with mergers and acquisitions,
leveraged buyouts, negotiated underwritings, competitive biddings, secondary
distributions of listed and unlisted securities, private placements, and
valuations for corporate and other purposes.
 
RECOMMENDATIONS OF BOARDS OF DIRECTORS
 
     THE BOARDS OF DIRECTORS OF KEYCORP AND SOCIETY UNANIMOUSLY RECOMMEND THAT
THEIR RESPECTIVE SHAREHOLDERS VOTE FOR THE ADOPTION OF THE MERGER AGREEMENT.
 
                              TERMS OF THE MERGER
 
     This portion of the Prospectus/Joint Proxy Statement describes various
aspects of the Merger. The following description does not purport to be complete
and is qualified in its entirety by reference to the Plan of Merger and the
Supplemental Agreement attached hereto as Appendices I and II, respectively, and
incorporated herein by reference. ALL SHAREHOLDERS OF KEYCORP AND SOCIETY ARE
URGED TO READ THE PLAN OF MERGER AND THE SUPPLEMENTAL AGREEMENT IN THEIR
ENTIRETY.
 
GENERAL
 
     The Merger Agreement provides that, subject to the satisfaction (including,
among other things, adoption of the Merger Agreement by the shareholders of
KeyCorp and Society and receipt of all necessary material regulatory approvals),
or, in certain cases, waiver of certain conditions, KeyCorp will be merged into
and with Society. Upon consummation of the Merger, the separate corporate
existence of KeyCorp will cease, Society will be the surviving corporation under
New Key's name, the shareholders of KeyCorp will become shareholders of New Key,
and the shareholders of Society will, by virtue of their ownership of Society
Common Stock, be shareholders of New Key. See "TERMS OF THE MERGER -- Effective
Time."
 
CONVERSION OF KEYCORP CAPITAL STOCK; EFFECTS ON SOCIETY SHAREHOLDERS
 
     Conversion of KeyCorp Common Stock. At the Effective Time, each share of
KeyCorp Common Stock then issued and outstanding (other than treasury shares
held by KeyCorp or KeyCorp Common Stock owned by Society for its own account)
will cease to be outstanding and will be converted into 1.205 shares of New Key
Common Stock. Each share of New Key Common Stock issued to KeyCorp shareholders
in the Merger will be accompanied by one New Key Right to be evidenced by
certificates of New Key Common Stock under the New Key Rights Agreement. Each
New Key Right represents the right to purchase one share of New Key Common Stock
upon the terms and conditions set forth in the New Key Rights Agreement. See
"TERMS OF THE MERGER -- Conversion of KeyCorp Capital Stock; Effects on Society
Shareholders -- No Fractional Shares of New Key Common Stock to be Issued";
"DESCRIPTION OF NEW KEY CAPITAL STOCK -- New Key Common Stock" and "COMPARISON
OF CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY."
 
     Conversion of KeyCorp Preferred Stock. At the Effective Time, each share of
KeyCorp Preferred Stock then issued and outstanding (other than treasury shares
held by KeyCorp or KeyCorp Preferred Stock owned by Society for its own account)
will cease to be outstanding and will be converted into one share of New Key
Preferred Stock and each share of New Key Preferred Stock will be represented by
five New Key Depositary Shares. Pursuant to the terms of the Deposit Agreement
(as defined herein), promptly after the Effective Time, the Depositary (as
defined herein) will call for surrender of the KeyCorp Depositary Receipts then
outstanding and, upon surrender, will exchange New Key Depositary Receipts for
such KeyCorp Depositary Receipts. See "TERMS OF THE MERGER -- Surrender of
Certificates and Depositary Receipts"; "DESCRIPTION OF NEW KEY CAPITAL STOCK --
New Key Preferred Stock and New Key Depositary Shares" and "COMPARISON OF
CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY."
 
                                       42
<PAGE>   47
 
     Effect on Society Shareholders. At the Effective Time, each share of
Society Common Stock then issued and outstanding will continue as one share of
New Key Common Stock and will continue to be accompanied by one New Key Right
under the New Key Rights Agreement.
 
     No Fractional Shares of New Key Common Stock to be Issued. No fractional
share of New Key Common Stock will be issued in the Merger, but, in lieu
thereof, each holder of shares of KeyCorp Common Stock who otherwise would have
been entitled to a fraction of a share of New Key Common Stock, upon surrender
of his certificates representing shares of KeyCorp Common Stock, will be paid
the cash value (without interest) of such fraction, which will be equal to such
fraction multiplied by the closing price of Society Common Stock as reported on
the NYSE on the last trading day immediately preceding the Effective Time. See
"TERMS OF THE MERGER -- Certain Federal Income Tax Consequences."
 
     Dissenters' Rights. No conversion of KeyCorp Common Stock into New Key
Common Stock shall be made with respect to any share of KeyCorp Common Stock as
to which a shareholder of KeyCorp has properly elected to exercise any rights to
dissent and obtain payment of the fair value of his shares under the New York
Business Corporation Law. To the extent provided in the Ohio General Corporation
Law, any holder of record of Society Common Stock as of the record date entitled
to notice of the Society Meeting shall, upon strict compliance with all
applicable requirements set forth in the Ohio General Corporation Law, be
entitled to relief as a dissenting shareholder under the Ohio General
Corporation Law. See "RIGHTS OF DISSENTING SHAREHOLDERS."
 
SURRENDER OF CERTIFICATES AND DEPOSITARY RECEIPTS
 
     Manner of Exchange -- Certificates. KeyCorp and Society have selected
Society National Bank as exchange agent (the "Exchange Agent") to effect the
exchange of certificates representing shares of KeyCorp Common Stock in
connection with the Merger. Promptly after the Effective Time, the Exchange
Agent will mail to each holder of record (other than holders of KeyCorp Common
Stock who have properly demanded and perfected dissenters' rights under the New
York Business Corporation Law) of certificates which immediately prior to the
Effective Time represented outstanding shares of KeyCorp Common Stock, a notice
advising the holder of the effectiveness of the Merger accompanied by a
transmittal form (the "Certificate Transmittal Form"). The Certificate
Transmittal Form will contain instructions with respect to the surrender of
certificates representing KeyCorp Common Stock to be exchanged for shares of New
Key Common Stock (together with cash in lieu of any fractional share) and will
specify that delivery will be effected, and risk of loss and title to such
certificates will pass, only upon delivery of the certificates to the Exchange
Agent. Upon surrender, in accordance with the instructions contained in the
Certificate Transmittal Form, to the Exchange Agent of certificates representing
shares of KeyCorp Common Stock, the holder thereof will be entitled to receive
in exchange therefor a certificate(s) representing the appropriate number of
shares of New Key Common Stock to which such holder is entitled and cash in lieu
of any fractional share of New Key Common Stock.
 
     THE DEPOSITARY IS THE ONLY HOLDER OF RECORD OF SHARES OF KEYCORP PREFERRED
STOCK, WHICH ARE REPRESENTED BY THE KEYCORP DEPOSITARY SHARES. THE EXCHANGE
AGENT WILL EFFECT THE EXCHANGE OF CERTIFICATES REPRESENTING THE KEYCORP
PREFERRED STOCK FOR CERTIFICATES REPRESENTING THE NEW KEY PREFERRED STOCK IN
CONNECTION WITH THE MERGER. ALL HOLDERS OF RECORD OF KEYCORP DEPOSITARY RECEIPTS
EVIDENCING KEYCORP DEPOSITARY SHARES SHOULD FOLLOW THE EXCHANGE PROCEDURES
OUTLINED UNDER "MANNER OF EXCHANGE -- DEPOSITARY RECEIPTS," IMMEDIATELY BELOW.
 
     Manner of Exchange -- Depositary Receipts.  Promptly after the Effective
Time, the Depositary will mail to each holder of record of KeyCorp Depositary
Receipts which immediately prior to the Effective Time evidenced KeyCorp
Depositary Shares a notice advising the holder of the effectiveness of the
Merger accompanied by a transmittal form (the "Depositary Receipt Transmittal
Form"). The Depositary Receipt Transmittal Form will contain instructions with
respect to the surrender of KeyCorp Depositary Receipts evidencing KeyCorp
Depositary Shares to be exchanged for New Key Depositary Receipts evidencing New
Key Depositary Shares and will specify that delivery will be effected, and risk
of loss and title to such KeyCorp Depositary Receipts will pass, only upon
delivery of the KeyCorp Depositary Receipts to the Depositary. Upon surrender,
in accordance with the instructions contained in the Depositary Receipt
Transmittal Form, to the Depositary of KeyCorp Depositary Receipts evidencing
KeyCorp Depositary Shares, the holder thereof will be
 
                                       43
<PAGE>   48
 
entitled to receive in exchange therefor New Key Depositary Receipts evidencing
the appropriate number of New Key Depositary Shares to which such holder is
entitled.
 
     KEYCORP STOCK CERTIFICATES AND/OR DEPOSITORY RECEIPTS SHOULD NOT BE
FORWARDED TO THE EXCHANGE AGENT OR THE DEPOSITARY UNTIL A KEYCORP SHAREHOLDER
HAS RECEIVED A TRANSMITTAL FORM AND SHOULD NOT BE RETURNED WITH THE ENCLOSED
PROXY. NO ACTION IS REQUIRED OF ANY HOLDER OF SOCIETY COMMON STOCK WHO DOES NOT
EXERCISE DISSENTERS' RIGHTS UNDER THE OHIO GENERAL CORPORATION LAW.
 
     Rights of Holders of KeyCorp Stock Certificates Prior to Surrender. Prior
to the time certificates representing shares of KeyCorp Common Stock or KeyCorp
Depositary Receipts evidencing KeyCorp Depositary Shares are surrendered,
dividends and other distributions declared or payable to holders of record of
New Key Common Stock or New Key Depositary Shares as of any time subsequent to
the Effective Time will be paid to the holder of any unsurrendered certificate
representing KeyCorp Common Stock or any unsurrendered KeyCorp Depositary
Receipt, as the case may be, and such holder's other rights as a shareholder of
New Key (including, if applicable, the right to vote on any matter submitted to
New Key shareholders for their approval) will continue. However, beginning nine
months after the Effective Time, in the event a holder fails to physically
surrender his certificates representing KeyCorp Common Stock or his KeyCorp
Depositary Receipts for exchange, no dividend or other distribution payable to
holders of record on any date that is nine months after the Effective Time (or
such longer period as determined by New Key) will be paid to any shareholder of
New Key until such holder physically surrenders for exchange his certificates
representing shares of KeyCorp Common Stock or his KeyCorp Depositary Receipts,
and New Key may suspend such holder's other rights as a shareholder, including
his right to vote, at any time beginning nine months after the Effective Time
until such holder physically surrenders his certificates representing KeyCorp
Common Stock or his KeyCorp Depositary Receipts for exchange. Upon surrender by
any such shareholder of his certificates representing KeyCorp Common Stock or
his KeyCorp Depositary Receipts to the Exchange Agent or the Depositary, as the
case may be, after such nine-month period, the former KeyCorp shareholder will
receive certificates or the New Key Depositary Receipts representing the shares
of New Key Common Stock or New Key Depositary Shares into which such
shareholder's shares of KeyCorp Common Stock or KeyCorp Depositary Shares, as
the case may be, were converted and the dividends or other distributions
(without interest) that have theretofore become payable with respect to such
shares of New Key Common Stock or New Key Depositary Shares since that date that
is nine months after the Effective Time (or such longer period as determined by
New Key) and, if suspended, such shareholder's other rights as a shareholder
will thereupon be restored.
 
     Lost Certificates and Depositary Receipts. Any KeyCorp shareholder who has
lost or misplaced a certificate for any of his shares of KeyCorp Common Stock or
his KeyCorp Depositary Receipts should immediately call KeyCorp Shareholder
Relations (1-800-888-7412) for information regarding the procedures to be
followed for replacing the lost certificate or Depositary Receipt. Until a
replacement certificate is obtained, the KeyCorp shareholder will be unable to
properly submit the Certificate Transmittal Form or the Depositary Receipt
Transmittal Form, as the case may be.
 
TREATMENT OF STOCK OPTIONS
 
   
     As of December 28, 1993, there were 3,311,734 unexercised options
outstanding under various employee and director stock option plans of KeyCorp
(collectively, the "KeyCorp Option Plans") to purchase shares of KeyCorp Common
Stock at prices varying from $8.01 to $46.00 per share. As of that date, options
to purchase 2,815,667 shares of KeyCorp Common Stock were exercisable. See
"--Interests of Certain Persons in the Merger -- Interests of KeyCorp Directors
and Executive Officers -- New Stock Options to be Granted."
    
 
   
     At the Effective Time, New Key will assume each option, whether or not then
exercisable, under the KeyCorp Option Plans outstanding immediately prior to the
Effective Time, and each such option will become an option of New Key and remain
outstanding in accordance with the terms of the KeyCorp Option Plan under which
it was issued and the stock option agreement by which it is evidenced, except
that (a) each such option may be exercised only for New Key Common Stock, (b)
each such option will become an option to purchase the number of shares of New
Key Common Stock equal to 1.205 multiplied by the number of shares
    
 
                                       44
<PAGE>   49
 
of KeyCorp Common Stock subject to such option immediately prior to the
Effective Time (with the product rounded down to the next whole share), (c) the
exercise price per share of New Key Common Stock at which each such option is
exercisable will be an amount (rounded up to the next whole cent) computed by
dividing the exercise price per share of KeyCorp Common Stock at which such
option is exercisable immediately prior to the Effective Time by 1.205, and (d)
New Key and the Compensation and Organization Committee of the Board of
Directors of New Key will be substituted for KeyCorp and the committee of
KeyCorp's Board of Directors administering such plans. At the Effective Time,
the KeyCorp Option Plans will be automatically and without further action
assumed by New Key (and thereupon become stock option and stock appreciation
rights plans of New Key). Under the Merger Agreement, KeyCorp has agreed not to
grant additional options prior to the Effective Time under the KeyCorp Option
Plans, except with Society's prior consent, in connection with certain permitted
acquisition transactions, and pursuant to the Career Equity Program of KeyCorp.
 
NAME
 
     At the Effective Time, Society, as the surviving corporation in the Merger,
will change its name to "Key Bancshares Inc.," "KeyCorp," or a variant thereof.
The decision regarding the name of New Key will be made based upon name
availability and other factors. Pursuant to the terms of the Merger Agreement,
the Boards of Directors of KeyCorp and Society have the authority to establish
the name of New Key. The decision regarding the name of New Key will not require
the resolicitation of the shareholders of KeyCorp or Society, regardless of
whether such decision is made before or after the KeyCorp Meeting or the Society
Meeting. Pursuant to the terms of the Merger Agreement, once the name of New Key
has been established by the respective Boards of Directors of KeyCorp and
Society, the New Key Articles of Incorporation and the New Key Regulations will
automatically be amended to reflect the name selected, if necessary.
 
CONDUCT OF BUSINESS PENDING THE MERGER
 
     General. The Merger Agreement contains certain restrictions, which are
reciprocal, on the conduct of the respective businesses of KeyCorp and Society
pending the consummation of the Merger. In particular, unless the prior written
consent of the other party is obtained, or as permitted by the Merger Agreement
or previously noted in letters (the "Disclosure Letters") delivered by each of
KeyCorp and Society to the other pursuant to the Merger Agreement, prior to the
Effective Time, the Merger Agreement requires both KeyCorp and Society, and
their respective subsidiaries, to (a) conduct their respective businesses in the
ordinary course consistent with past practices, (b) preserve intact their
respective business organizations and assets and maintain their rights and
franchises, and (c) take no action which would adversely affect the ability of
either of them to obtain any approvals of governmental authorities required for
the transactions contemplated by the Merger Agreement or to perform their
respective obligations under the Merger Agreement, the KeyCorp Option Agreement,
or the Society Option Agreement.
 
     The Merger Agreement also prohibits each of KeyCorp and Society, and their
respective subsidiaries, from engaging in certain activities prior to the
Effective Time without the prior written consent of the other party (which
consent may not be unreasonably withheld). Specifically, without such consent,
neither KeyCorp nor Society, nor their respective subsidiaries, may:
 
          (a) except as permitted by the Merger Agreement or as previously noted
     in the Disclosure Letters, amend such party's charter or by-laws or
     regulations, or the KeyCorp Rights Agreement or the Society Rights
     Agreement, as the case may be;
 
          (b) impose or suffer the imposition of any material lien, charge, or
     encumbrance on any share of stock held by such party or by one of its
     subsidiaries, or permit any such imposition to exist;
 
          (c) repurchase, redeem, or otherwise acquire or exchange, directly or
     indirectly, any shares of such party's capital stock (or securities
     convertible into such shares), except (i) as permitted by the Merger
     Agreement, (ii) in connection with the use of shares of KeyCorp Common
     Stock or Society Common Stock, as the case may be, by optionees in payment
     of option exercise prices or tax liabilities under any KeyCorp Option Plans
     or various employee stock option plans of Society, or (iii) pursuant to the
     KeyCorp Option Agreement or the Society Option Agreement;
 
                                       45
<PAGE>   50
 
          (d) except as permitted by the Merger Agreement or as previously noted
     in the Disclosure Letters, acquire direct or indirect control over any
     corporation, firm, association, or other organization, except for (i)
     mergers, acquisitions, or other transactions approved in advance in writing
     by the other party, (ii) mergers, acquisitions, or other transactions
     involving cash consideration (and not debt or equity securities issued by
     either KeyCorp or Society, as the case may be) after consulting with (but
     with no requirement to obtain the approval of) the other party, provided
     that the aggregate amount of the total assets acquired or total deposits
     assumed in all such transactions by such party does not exceed
     $1,000,000,000 and the total cash paid does not exceed $50,000,000, (iii)
     internal reorganizations or consolidations involving existing subsidiaries,
     (iv) good faith foreclosures in the ordinary course, (v) acquisitions of
     control by a banking subsidiary in a bona fide fiduciary capacity, (vi)
     investments made by a small business investment corporation or by
     subsidiaries that invest in unaffiliated companies in the ordinary course,
     and (vii) the creation of new subsidiaries organized to continue or conduct
     activities otherwise permitted under the Merger Agreement;
 
          (e) except as previously noted in the Disclosure Letters, sell or
     otherwise dispose of (i) any shares of the capital stock of such party or
     any of its subsidiaries, except shares sold or transferred, in the case of
     KeyCorp, to KeyCorp or any of its subsidiaries, and, in the case of
     Society, to Society or any of its subsidiaries, (ii) any substantial part
     of the assets or earning power of such party or any of its subsidiaries, or
     (iii) any asset other than in the ordinary course of business and for
     reasonable and adequate consideration, provided, however, that either
     KeyCorp or Society may sell shares or assets in transactions not otherwise
     prohibited by the Merger Agreement involving an aggregate consideration
     (including assumed liabilities) not in excess of $50,000,000;
 
          (f) except as previously noted in the Disclosure Letters and except
     for transactions in the ordinary course of business of such party and its
     subsidiaries consistent with past practices and other than the issuance of
     commercial paper exempt from registration under the Securities Act, incur
     any additional obligation for borrowed money, except (i) in replacement of
     existing short-term debt with other short-term debt, (ii) financing banking
     related subsidiary activities consistent with past practices, (iii)
     intercompany indebtedness, (iv) inter-affiliate indebtedness, or (v) in
     connection with the issuance of Medium Term Notes by either party pursuant
     to certain effective registration statements of the respective parties
     filed with the SEC prior to October 1, 1993;
 
          (g) declare or pay any dividend other than the regular quarterly cash
     dividends payable, in the case of KeyCorp, on KeyCorp Common Stock (at a
     quarterly rate not in excess of $.31 per share) and on KeyCorp Preferred
     Stock (in accordance with the terms of the KeyCorp Preferred Stock) and, in
     the case of Society, on the Society Common Stock (at a quarterly rate not
     in excess of $.28 per share); or
 
          (h) issue, sell, or otherwise permit to be outstanding (or enter into
     an agreement to issue, sell, or otherwise permit to be outstanding) any
     additional shares of such party's capital stock (or any stock appreciation
     rights, options, warrants, or other rights to acquire such stock or any
     security convertible into such stock) other than (i) pursuant to existing
     employee stock options, stock appreciation rights, or similar stock based
     employee compensation rights previously granted, (ii) as permitted by the
     Merger Agreement, the KeyCorp Option Agreement, or the Society Option
     Agreement, or (iii) as previously noted in the Disclosure Letters.
 
          In addition, prior to the Effective Time, KeyCorp and Society will
     coordinate with each other as to the declaration and payment of cash
     dividends on the shares of KeyCorp Common Stock and Society Common Stock to
     be declared in 1994 so as to ensure that KeyCorp and Society have declared,
     in connection with record dates prior to the Effective Time, the same
     number of quarterly dividends in 1994.
 
     Employee Related Matters. From the date of the Merger Agreement until the
Effective Time, neither KeyCorp nor Society, nor any of their respective
subsidiaries, without the prior written consent of the other party (which
consent may not be unreasonably withheld), may:
 
          (a) except as permitted by the Merger Agreement, grant any general
     increase in compensation or benefits to such party's officers or employees,
     except in accordance with past practice or as required by law;
 
                                       46
<PAGE>   51
 
          (b) pay any bonus, except in accordance with past practice or the
     provisions of any applicable program or plan adopted by the Board of
     Directors of such party prior to October 1, 1993 and which has been
     previously noted in the Disclosure Letters;
 
          (c) enter into any severance agreements with any of such party's
     officers or directors, or any officers or directors of its subsidiaries,
     except as previously noted in the Disclosure Letters;
 
          (d) increase the fees, compensation, or other benefits to any of such
     party's present or former directors;
 
          (e) effect any change in the retirement benefits for any class of such
     party's officers or employees (except as required by law or, in the opinion
     of counsel, as necessary or advisable to maintain the tax qualification of
     any plan under which retirement benefits are provided) that would
     materially increase the retirement benefit liabilities of such party and
     its subsidiaries on a consolidated basis;
 
          (f) except as required by law, as noted in the Disclosure Letters, or
     as permitted by the Merger Agreement, amend any existing employment
     agreement between such party or any of its subsidiaries, and any employee
     having a salary in excess of $100,000 under such agreement for the purpose
     of increasing the compensation or benefits payable under, or extending the
     term of, such agreement;
 
          (g) enter into any new employment agreement between such party or any
     of its subsidiaries and any employee having a salary in excess of $100,000
     under such agreement, except (i) as previously noted in the Disclosure
     Letters, (ii) as permitted by the Merger Agreement, (iii) any agreement as
     is unconditionally terminable by such party or any of its subsidiaries,
     without liability, at any time on or after the Effective Time, or (iv) as
     required by law;
 
          (h) adopt any new employee benefit plan for such party's employees or
     the employees of any of its subsidiaries or make any material change in or
     to any of such party's or its subsidiaries' existing employee benefit
     plans, except (i) as previously noted in the Disclosure Letters, (ii) as
     required by law, or (iii) in the opinion of counsel, as necessary or
     advisable to maintain the tax qualified status of any such plan; or
 
          (i) make any new grants of employee stock options, stock appreciation
     rights, or similar stock based employee compensation rights other than in
     accordance with the Career Equity Program of KeyCorp.
 
NO SOLICITATIONS
 
     Neither KeyCorp nor Society, nor any of their respective subsidiaries, may
solicit, initiate, participate in discussions of, or encourage or take any other
action to facilitate (including by way of disclosing or furnishing any
information that it is not legally obligated to disclose or furnish) any inquiry
or proposal relating to an actual or potential "Acquisition Transaction" (as
defined herein) involving such party or any of its subsidiaries. In addition,
neither KeyCorp nor Society, nor any of their respective subsidiaries, may enter
into any written or oral agreement, arrangement, or understanding regarding any
proposal or transaction, or solicit, initiate, participate in discussions of, or
encourage or take any other action to facilitate any inquiry or proposal, (a)
relating to an actual or potential Acquisition Transaction involving the other
party (b) providing for or requiring such party to (i) abandon, terminate, or
fail to complete the transactions contemplated by the Merger Agreement or (ii)
forebear from exercising or permit to lapse its rights under the KeyCorp Option
Agreement or the Society Option Agreement, as the case may be, or (c)
compensating such party or any of its subsidiaries for taking any action set
forth in clause (b)(i) or (b)(ii) of this sentence. Each of KeyCorp and Society
will instruct and use its best efforts to cause each of its directors, officers,
employees, agents, and other representatives to comply with the foregoing
prohibitions. Neither KeyCorp nor Society may negotiate with respect to any
proposal relating to any such actual or potential Acquisition Transaction,
termination, or forbearance, nor may they reach any formal or informal, written
or oral, agreement or understanding with respect to any such proposal. In
addition, each of KeyCorp and Society must notify the other party orally and in
writing if it receives any inquiry or proposal relating to any such actual or
potential Acquisition Transaction, termination, or forbearance. Notwithstanding
these prohibitions, with respect to any such inquiry or proposal, each of
KeyCorp and Society may provide accurate disclosure in any document required to
be filed with the SEC or any other disclosure to the extent required by
applicable law if, in the opinion of the Board of Directors of KeyCorp or
Society, as the case may be, such disclosure is required.
 
                                       47
<PAGE>   52
 
     For purposes of the foregoing discussion, an "Acquisition Transaction"
includes with respect to each of KeyCorp and Society (a) any business
acquisition (other than those expressly permitted by the Merger Agreement)
involving such party or any of its respective "Significant Subsidiaries" (as
defined in Rule 1.02 of Regulation S-X promulgated by the SEC), (b) any
acquisition or lease of all or substantially all of the assets of such party or
any of its Significant Subsidiaries, (c) any acquisition by a "person" or
"group" (as defined pursuant to the rules and regulations of the SEC) of
securities representing at least 10% of the voting power of such party or any of
its Significant Subsidiaries, (d) any tender or exchange offer to acquire
securities representing at least 10% of the voting power of such party, (e) any
public proxy or consent solicitation made to such party's shareholders seeking
proxies in opposition to any proposal recommended by such party's Board of
Directors, (f) the filing of any application or notice with federal or state
banking regulators which is accepted for processing seeking approval to engage
in any of the types of transactions described in clauses (a)-(d) of this
paragraph, or (g) the making of any bona fide proposal to such party or its
respective shareholders, by public announcement or written communication that is
or becomes the subject of public disclosure, to engage in any of the types of
transactions described in clauses (a)-(e) of this paragraph. Both KeyCorp and
Society have agreed in the Merger Agreement to use their best efforts to take
all actions necessary to cause the Merger and the related transactions to become
effective as soon as possible, including by using their best efforts (a) to lift
or rescind any injunction or restraining order or other order adversely
affecting the ability of the parties to consummate the Merger and the related
transactions and (b) to obtain all consents of governmental bodies and other
third parties necessary or desirable for the consummation of the Merger and the
related transactions. The Merger Agreement requires KeyCorp and Society to use
their best efforts to obtain the required approvals of their respective
shareholders for consummation of the Merger and the related transactions. The
Merger Agreement also requires the Boards of Directors of KeyCorp and Society to
recommend that their respective shareholders approve the Merger Agreement unless
(a) either party has received an offer to effect an Acquisition Transaction and
(b) the Board of Directors of such party reasonably determines that, in the
exercise of its fiduciary obligations, it is required to withdraw, modify, or
amend its recommendation, based on the written opinion of its legal counsel.
 
CONDITIONS TO THE MERGER
 
     The respective obligations of KeyCorp and Society to effect the Merger are
subject to the satisfaction prior to the Effective Time of certain conditions,
including, but not limited to, the following significant conditions (some of
which may be waived):
 
          (a) in the case of each party, performance in all material respects at
     or prior to the Effective Time of the agreements and covenants required to
     be performed by the other party;
 
          (b) in the case of each party, the truth and correctness in all
     material respects as of the Effective Time and the date of signing of the
     Merger Agreement of the representations and warranties of the other party
     contained in the Merger Agreement, except as expressly contemplated by the
     Merger Agreement and except for any representation and warranty made as of
     a specified date (which shall be true and correct as of such date);
 
          (c) adoption of the Merger Agreement by the requisite votes of
     shareholders of KeyCorp and Society;
 
          (d) receipt of all material approvals of governmental agencies
     required to consummate the transactions contemplated by the Merger
     Agreement and to prevent the termination of any material right, privilege,
     license, or agreement of either party or any of their respective
     subsidiaries, without any conditions or restrictions which would so
     materially and adversely affect the economic or business assumptions of the
     Merger as to render inadvisable its consummation in the reasonable judgment
     of the Board of Directors of both KeyCorp and Society. See "TERMS OF THE
     MERGER -- Regulatory Approvals";
 
          (e) receipt by KeyCorp and Society of letters, dated as of the
     Effective Time, from Ernst & Young, independent auditors, stating that, for
     financial reporting purposes, the Merger qualifies for pooling of interests
     accounting treatment. See "TERMS OF THE MERGER -- Accounting Treatment of
     Merger";
 
                                       48
<PAGE>   53
 
          (f) absence of any temporary restraining order, injunction, or other
     order by any federal or state court or agency which enjoins or prohibits
     consummation of the Merger;
 
          (g) receipt by each of KeyCorp and Society of a written opinion from
     their respective legal counsel as to certain federal income tax
     consequences of the Merger. See "TERMS OF THE MERGER -- Certain Federal
     Income Tax Consequences";
 
          (h) the Registration Statement shall have been declared effective by
     the SEC and shall not be subject to a stop order suspending the
     effectiveness of the Registration Statement and no proceedings for the
     purpose of suspending the effectiveness of the Registration Statement shall
     be pending before or threatened by the SEC;
 
          (i) no "Shares Acquisition Date" or "Triggering Event" (as such terms
     are defined in the Society Rights Agreement) shall have occurred under the
     Society Rights Agreement; and
 
          (j) Society shall not be an "Acquiring Person" under the terms of the
     KeyCorp Rights Agreement, no "Flip-in-Date," "Flip-over Transaction or
     Event," "Separation Time," or "Stock Acquisition Date" (as such terms are
     defined in the KeyCorp Rights Agreement) shall have occurred under the
     KeyCorp Rights Agreement, and the KeyCorp Rights Agreement shall have
     terminated in accordance with its terms at or prior to the Effective Time.
 
REGULATORY APPROVALS
 
     Consummation of the Merger is subject to receipt by KeyCorp and Society of
all necessary material regulatory approvals. The material regulatory approvals
that must be obtained as a condition to the consummation of the Merger are from
the Federal Reserve Board, the Alaska Department of Commerce and Economic
Development, the Arizona Director of Insurance, the Colorado Banking Board, the
Director of the Idaho Department of Finance, the New York Superintendent of
Banks, the New York Banking Board, the Superintendent of the Maine Bureau of
Banking, the Director of the Oregon Department of Insurance and Finance, the
Utah Commissioner of Financial Institutions, the Washington State Director of
the Department of Financial Institutions, and the Wyoming Banking Commission.
 
     IT IS ANTICIPATED THAT THE REGULATORY APPROVALS DESCRIBED HEREIN WILL BE
OBTAINED IN TIME TO ALLOW FOR CONSUMMATION OF THE MERGER DURING THE FIRST
QUARTER OF 1994, BUT NO ASSURANCE CAN BE GIVEN THAT SUCH REGULATORY APPROVALS
WILL BE OBTAINED SO AS TO PERMIT CONSUMMATION OF THE MERGER OR THAT SUCH
APPROVALS WILL NOT BE CONDITIONED UPON MATTERS THAT WOULD CAUSE THE PARTIES TO
ABANDON THE MERGER. THERE LIKEWISE CAN BE NO ASSURANCE THAT THE UNITED STATES
DEPARTMENT OF JUSTICE OR A STATE ATTORNEY GENERAL WILL NOT CHALLENGE THE MERGER,
OR IF SUCH A CHALLENGE IS MADE, AS TO THE RESULTS THEREOF.
 
     The Merger is subject to approval by the Federal Reserve Board under
Sections 3 and 4 of the Bank Holding Company Act of 1956, as amended (the
"BHCA"). Section 3 of the BHCA requires that the Federal Reserve Board take into
consideration the financial and managerial resources and future prospects of the
existing and proposed institutions and the convenience and needs of the
communities to be served. The Federal Reserve Board has indicated that it will
not approve a significant acquisition unless the resulting institution has
adequate capitalization, taking into account, among other things, asset quality.
The BHCA prohibits the Federal Reserve Board from approving the Merger if (a) it
would result in a monopoly or would be in furtherance of any combination or
conspiracy to monopolize the business of banking in any part of the United
States or (b) its effect in any section of the country may be substantially to
lessen competition or to tend to create a monopoly or would be in restraint of
trade in any other manner, unless the Federal Reserve Board finds that any
anticompetitive effects of the Merger are clearly outweighed in the public
interest by the probable effect of the transaction in meeting the convenience
and needs of the communities to be served. In addition, under the Community
Reinvestment Act, as amended (the "Community Reinvestment Act") the Federal
Reserve Board must take into account the records of performance of the bank
subsidiaries of KeyCorp and Society in meeting the credit needs of each
community, including low-and moderate-income neighborhoods, served by such bank
subsidiaries. The Federal Reserve Board must also determine, under Section 3(d)
of the BHCA, that each state in which KeyCorp has a bank subsidiary authorizes
the acquisition of such bank
 
                                       49
<PAGE>   54
 
subsidiary by a bank holding company principally located in Ohio; in some cases,
this determination will require a finding that the interstate statute of the
relevant state is reciprocal with the Ohio interstate statute.
 
     Under Section 4 of the BHCA and related regulations, the Federal Reserve
Board must assess whether the performance by New Key of KeyCorp's nonbanking
activities can reasonably be expected to produce benefits to the public such as
greater convenience, increased competition, or gains in efficiency, that
outweigh any possible adverse effects, such as undue concentration of resources,
decreased or unfair competition, conflicts of interest, or unsound banking
practices. This assessment also includes an evaluation of the financial and
managerial resources of KeyCorp and Society and the effect of the Merger on
those resources.
 
     Under the BHCA, the Merger may not be consummated until the 30th day
following the date of Federal Reserve Board approval, during which time the
United States Department of Justice may challenge the Merger on antitrust
grounds. The commencement of an antitrust action by the Department of Justice
would stay the effectiveness of the Federal Reserve Board's approval unless a
court specifically orders otherwise. KeyCorp and Society believe that antitrust
concerns will not interfere with the consummation of the Merger.
 
     Applications seeking the foregoing approvals of the Federal Reserve Board
were accepted for processing on November 23, 1993.
 
     The consummation of the Merger, resulting in the acquisition by New Key of
Key Bancshares of Alaska, Inc. and Key Bank of Alaska, both wholly owned
subsidiaries of KeyCorp, is subject to approval by the Alaska Department of
Commerce and Economic Development under Section 06.05.570 of the Alaska Banking
Code. In considering whether to approve the Merger, the Alaska Department of
Commerce and Economic Development will consider the benefits to the public, the
preservation of a competitive banking industry, and the maintenance of a safe
and sound banking industry.
 
     The acquisition by New Key of Key Bank Life Insurance, a wholly-owned
subsidiary of KeyCorp, as a result of the Merger, will require the approval of
the Director of the Arizona Department of Insurance pursuant to Section
20-481.02 of the Arizona Code. The Director shall approve the Merger unless he
finds, among other things, that the Merger is contrary to law; is inequitable to
the shareholders of Key Bank Life Insurance Company; would substantially reduce
the security of and services to be rendered to policyholders; would preclude Key
Bank Life Insurance Company from satisfying the requirements for the reissuance
of a certificate of authority to write the line or lines of insurance for which
they are presently licensed; would substantially lessen competition in insurance
in Arizona or tend to create a monopoly. The Director shall also consider
whether the financial condition of New Key might jeopardize the financial
stability of Key Bank Life Insurance Company or prejudice its policyholders;
whether the plans or proposals of the Merger are unfair and unreasonable or are
not in the public interest; the competence, experience, and integrity of those
persons who would control the operation of Key Bank Life Insurance Company; and
whether the Merger is likely to be hazardous or prejudicial to the insurance
buying public.
 
     The consummation of the Merger, resulting in the acquisition by New Key of
Key Bank of Colorado, a wholly-owned subsidiary of KeyCorp, is subject to
approval by the Colorado Banking Board under Section 11-1-6.4-103 of the
Colorado Banking Code. The approval of the application will be based on the
following considerations: whether the Merger will provide positive benefits for
Colorado citizens; whether the Merger affords protection to bank depositors in
Colorado; and whether the Merger enhances the opportunity of the people of
Colorado to receive services provided by banks and bank holding companies.
KeyCorp has pending two acquisitions in the State of Colorado, which are subject
to similar approval. See "BUSINESS OF KEYCORP -- Pending Acquisitions."
 
     The acquisition by New Key of Key Bancshares of Idaho, Inc. and Key Bank of
Idaho, both wholly-owned subsidiaries of KeyCorp, as a result of the Merger will
require the approval of the Director of the Idaho Department of Finance under
Section 26-2605 of the Idaho Code. The Director must disapprove the Merger if
any of the following are true: the Merger would be detrimental to the safety and
soundness of Key Bancshares of Idaho, Inc. or Key Bank of Idaho; New Key, its
executive officers, directors, or principal shareholders do not have a record of
sound performance, efficient management, financial responsibility, and
integrity; the consummation of the Merger will tend substantially to lessen
competition within Idaho (unless the Director finds that the anticompetitive
effects of the Merger are clearly outweighed by the benefit of meeting the
 
                                       50
<PAGE>   55
 
convenience and needs of the community); or KeyCorp and Society have not
established a record of meeting the credit needs of the communities served by
their respective subsidiaries.
 
     The acquisition by New Key of Key Bancshares of Maine, Inc., Key Bank of
Maine, and Key Trust of Maine, each a wholly-owned subsidiary of KeyCorp, as a
result of the Merger will require the approval of the Superintendent of the
Maine Bureau of Banking pursuant to Section 1013.2 of the Maine Code. The
Superintendent will consider whether the Merger contributes to the financial
strength and success of Key Bancshares of Maine, Inc., Key Bank of Maine, and
Key Trust of Maine, and promotes the convenience and advantage of the public. In
making the determination, the Superintendent will consider the following: the
adequacy of capital and financial resources of Key Bancshares of Maine, Inc.,
Key Bank of Maine, and Key Trust of Maine; the competitive abilities and future
prospects of Key Bancshares of Maine, Inc., Key Bank of Maine, and Key Trust of
Maine; the convenience and needs of the market area or areas to be served; the
competitive effect of the Merger on the price, availability, and quality of
services in the market areas to be served; the likely impact of the Merger on
other financial institutions in the market area; and the fairness and equities
involved in the Merger.
 
     The consummation of the Merger, resulting in the acquisition by New Key of
Key Bancshares of New York, Inc., Key Bank of New York, and Key Bank USA, N.A.,
each a wholly-owned subsidiary of KeyCorp, and KeyCorp Mortgage Inc., a
wholly-owned subsidiary of Key Bank of New York, will require the approval of
the New York Superintendent of Banks pursuant to Sections 142, 142-b and 594-b
of the New York Banking Law. The Superintendent will not approve the Merger if
the Superintendent finds that either KeyCorp or Society or any of KeyCorp's New
York banking subsidiaries has failed to comply with the requirements of the
Community Reinvestment Act or comparable New York law. Such acquisition, as well
as the acquisition of Key Trust Company, will also require the approval of the
New York Banking Board by a three-fifths vote of all members pursuant to
Sections 142 and 143-b of the New York Banking Law allowing New Key to become a
New York bank holding company and to acquire KeyCorp's banking subsidiaries
located in New York. When approving an application, the Banking Board will
consider, among other things, whether the effect of the Merger will be
consistent with adequate or sound banking and its preservation; whether the
Merger will lessen competition so as to injure the public interest or tend
toward monopoly; and, primarily, the public interest and the needs and
convenience of the public.
 
     The acquisition by New Key of Key Bank of Oregon, a wholly-owned subsidiary
of KeyCorp, as a result of the Merger will be subject to the approval of the
Director of the Oregon Department of Insurance and Finance pursuant to Section
715.015 of the Oregon Code. The approval of the application will result only if,
among other things: the controlling directors and officers of New Key are
qualified by character, experience and financial responsibility; the interests
of the stockholders, depositors, and creditors of Key Bank of Oregon, and the
public generally, will not be jeopardized; the change in management and
ownership will not result in a monopoly or further any attempt to monopolize
banking; and the change in control will not have anticompetitive effects, unless
such effects are clearly outweighed by the benefits of meeting the convenience
and needs of the financial market to be served.
 
     The consummation of the Merger, resulting in the acquisition by New Key of
Key Bancshares of Utah, Inc. and Key Bank of Utah, both wholly-owned
subsidiaries of KeyCorp, is subject to approval by the Utah Commissioner of
Financial Institutions pursuant to Section 7-1-705 of the Utah Code. The
Commissioner may disapprove the Merger if he finds that: the Merger would be
detrimental to the safety and soundness of New Key, Key Bancshares of Utah,
Inc., Key Bank of Utah, KeyCorp, Society, or any of their affiliates; New Key,
its executive officers, directors, or principal stockholders do not have a
record of sound performance, efficient management, financial responsibility, and
integrity; the consummation of the Merger will tend to substantially lessen
competition (unless the Commissioner finds that the Merger's anticompetitive
effects are clearly outweighed by the benefit of meeting the convenience and
needs of the community), or KeyCorp and Society have not established a record of
meeting the credit needs of the communities served by their respective
subsidiaries.
 
     The acquisition by New Key of Key Bancshares of Washington, Inc., Key Bank
of Washington, Key Savings Bank, and Key Trust Company of the Northwest, each
wholly-owned subsidiaries of KeyCorp, as a result of the Merger will require the
approval of Washington's Director of the Department of Financial
 
                                       51
<PAGE>   56
 
Institutions pursuant to Sections 30.04.232 and 30.04.405(1) of the Washington
Code. The Supervisor may disapprove the Merger if: the financial condition of
New Key might jeopardize the financial stability of Key Bancshares of
Washington, Inc., Key Bank of Washington, Key Savings Bank, or Key Trust Company
of the Northwest, or might prejudice the interests of their respective
depositors, shareholders, or borrowers; the Merger is not fair and reasonable;
or the Merger is not in the public interest.
 
     The consummation of the Merger, resulting in the acquisition by New Key of
Key Bancshares of Wyoming, Inc., Key Bank of Wyoming, and Key Trust Company of
the West, each wholly-owned subsidiaries of KeyCorp, will require the approval
of Wyoming's State Banking Commissioner pursuant to Section 13-9-303 of the
Wyoming Code. The Commissioner shall approve the Merger unless he finds that:
there is or recently has been evidence of criminal activity on the part of New
Key or any of its officers or directors; the Merger would jeopardize the
integrity of Key Bancshares of Wyoming, Inc., Key Bank of Wyoming, or Key Trust
Company of the West; or Society and KeyCorp have not responsibly met the
service, credit, and financing needs within their respective communities.
 
     Applications for the foregoing approvals have been filed except for the
approval of the Director of the Arizona Department of Insurance, which will be
filed shortly.
 
WAIVER OF CONDITIONS, AMENDMENT, OR TERMINATION OF THE MERGER AGREEMENT
 
     Waiver. The Merger Agreement provides that either KeyCorp or Society may
waive any default in the performance of any obligation of the other, waive or
extend the time for compliance or fulfillment of any obligation of the other,
and waive any condition precedent to such party's obligations under the Merger
Agreement.
 
     Amendment. The Merger Agreement may be amended, either before or after its
adoption by the shareholders of KeyCorp and Society, upon approval of each of
their Boards of Directors (except for certain technical amendments). However,
any such amendment made subsequent to the adoption of the Merger Agreement by
the shareholders of KeyCorp and Society, unless approved by the requisite vote
of such shareholders, may not alter the manner or basis in which shares of
capital stock of KeyCorp will be exchanged for shares of capital stock of New
Key in the Merger. Only an amendment which constitutes a fundamental change to
the Merger Agreement as described herein would require subsequent solicitation
by KeyCorp and Society of their respective shareholders.
 
     Termination. The Merger Agreement may be terminated, and the Merger
abandoned, at any time prior to the Effective Time, whether before or after
adoption of the Merger Agreement by the shareholders of KeyCorp and Society, or
both:
 
          (a) by a vote of a majority of the Boards of Directors of both of
     KeyCorp and Society for any reason;
 
          (b) by a vote of a majority of the Board of Directors of either
     KeyCorp or Society at any time after December 31, 1994, if the Merger shall
     not have been consummated by that date;
 
          (c) by a vote of a majority of the Board of Directors of either
     KeyCorp or Society in the event of a material breach by the other party of
     any of such party's representations, warranties, covenants, or agreements
     contained in the Merger Agreement which would result in a failure to
     satisfy any of the conditions to the obligations of KeyCorp or Society, as
     the case may be, to consummate the Merger outlined in paragraphs (a) and
     (b) under "TERMS OF THE MERGER -- Conditions to the Merger," which breach
     cannot be cured or has not been cured within thirty days after notice to
     the breaching party of such breach;
 
          (d) by a vote of a majority of the Board of Directors of either
     KeyCorp or Society if (i) any governmental agency required to approve the
     Merger denies such approval in a final non-appealable action by such agency
     or if any such action is not appealed during the time permitted for such an
     appeal or (ii) the shareholders of either KeyCorp or Society fail to
     approve the Merger;
 
          (e) by a vote of a majority of the Board of Directors of either
     KeyCorp or Society if any of the conditions to such party's obligations to
     consummate the Merger cannot be satisfied or fulfilled on or
 
                                       52
<PAGE>   57
 
     before December 31, 1994 (other than by reason of a breach by the party
     seeking to terminate). See "TERMS OF THE MERGER -- Conditions to the
     Merger"; or
 
          (f) by a vote of a majority of the Board of Directors of either
     KeyCorp or Society in the event of an acquisition by any "person" or
     "group" of "beneficial ownership" (all as defined in Section 13(d) of the
     Exchange Act) of 25% or more of the outstanding shares of common stock of
     the other party.
 
EFFECTIVE TIME
 
     The Merger becomes effective when KeyCorp and Society file appropriate
certificates with, and such filings are accepted by, the Secretary of State of
the State of Ohio and the Department of State of the State of New York. Upon the
Merger becoming effective Society will be the surviving corporation under New
Key's name and the separate existence of KeyCorp will cease. For a description
of circumstances under which KeyCorp or Society may terminate the Merger
Agreement, see "TERMS OF THE MERGER -- Waiver of Conditions, Amendment, or
Termination of the Merger Agreement." If not so terminated by either Board of
Directors, the Effective Time will occur as promptly as practicable after the
date upon which all of the conditions to the Merger are satisfied or duly waived
or at such other time and date as KeyCorp and Society may agree. However,
KeyCorp and Society currently anticipate that the Merger will be completed
during the first quarter of 1994, but, in any event, prior to December 31, 1994.
See "TERMS OF THE MERGER -- Regulatory Approvals."
 
BOARD OF DIRECTORS AND CHIEF EXECUTIVE OFFICERS OF NEW KEY THROUGH DECEMBER 31,
1998
 
     Board of Directors of New Key Through December 31, 1998. The Merger
Agreement and the New Key Regulations provide that, at the Effective Time, New
Key will have 22 directors, divided into three classes as follows: one class of
seven directors whose term will expire at the next annual meeting of
shareholders occurring after the Effective Time, one class of seven directors
whose term will expire at the second annual meeting of shareholders occurring
after the Effective Time, and one class of eight directors whose term will
expire at the third annual meeting of shareholders occurring after the Effective
Time. Through December 31, 1998, not more than two directors of New Key may be
"Insider Directors." "Insider Director" means any person who, as of immediately
prior to the Effective Time, was a current or former officer of Society or
KeyCorp or any of their subsidiaries or any predecessor or constituent (by
merger, consolidation, or otherwise) of New Key (including KeyCorp and Society)
or any of its subsidiaries, but does not include Mr. H. Douglas Barclay (who
previously served as Secretary and General Counsel of KeyCorp, but who has never
been an employee of KeyCorp or any subsidiary) and Mr. Henry S. Hemingway (who
previously served as a director of a liquidated intermediate holding company
subsidiary of KeyCorp). The Merger Agreement and the New Key Regulations further
provide that, through December 31, 1998, if the Board of Directors or
shareholders of New Key change the size of the Board of Directors of New Key in
accordance with the New Key Regulations, no more than two directors of the total
number of directors on the Board may be Insider Directors, and that any increase
or decrease in the size of the Board must be by a multiple of two.
 
     The Merger Agreement provides that Victor J. Riley, Jr. and Robert W.
Gillespie will be directors of New Key immediately following the Effective Time.
The Merger Agreement further provides that Messrs. Riley and Gillespie will
consult with each other as to the determination of the remaining 20 directors of
New Key, and that after such consultation and prior to the Effective Time, they
will each designate ten persons to be members of the Board of Directors of New
Key (subject to the approval of the respective Boards of Directors of KeyCorp
and Society), with Mr. Riley designating four of the seven directors in the
first class of directors and three of the seven directors in the second class of
directors, and Mr. Gillespie designating three of the first class of directors
and four of the second class of directors, and each designating four of the
third class of directors (except that the number of directors to be designated
for the class in which Messrs. Riley and Gillespie are members shall be reduced
by one designation each). None of the persons designated by Messrs. Riley and
Gillespie may be an "Insider Director."
 
                                       53
<PAGE>   58
 
     Messrs. Riley and Gillespie have consulted with each other and, with the
approval of the Boards of Directors of KeyCorp and Society, respectively, have
designated the following individuals to be Directors of New Key from and after
the Effective Time:
 
<TABLE>
<CAPTION>
                                   PRESENT BOARD
         NAME              AGE      AFFILIATION                     OCCUPATION
- -----------------------    ---     -------------     ----------------------------------------
<S>                        <C>     <C>               <C>
TERM EXPIRING IN 1994
William G. Bares           52        Society         President and Chief Operating Officer of
                                                     The Lubrizol Corporation, a producer of
                                                     chemicals for use in lubricants and
                                                     fuels.
Lucie J. Fjeldstad         49        KeyCorp         Private Consultant.
Robert W. Gillespie        49        Society         Chairman of the Board, President, and
                                                     Chief Executive Officer of Society
Henry S. Hemingway         40        KeyCorp         President of Town & Country Life
                                                     Insurance Company.
Steven A. Minter           55        Society         Executive Director and President of The
                                                     Cleveland Foundation, a philanthropic
                                                     foundation.
Victor J. Riley, Jr.       62        KeyCorp         Chairman of the Board, President, and
                                                     Chief Executive Officer of KeyCorp
Ronald B. Stafford         58        KeyCorp         Partner of the law firm of Stafford,
                                                     Trombley, Purcell, Lahtinen, Owens &
                                                     Curtin; member of the New York State
                                                     Senate.
TERM EXPIRING IN 1995
H. Douglas Barclay         61        KeyCorp         Partner of the law firm of Hiscock &
                                                     Barclay.
Thomas A. Commes           51        Society         President and Chief Operating Officer of
                                                     The Sherwin-Williams Company, a paints
                                                     and painting supplies manufacturer.
Stephen R. Hardis          58        Society         Vice Chairman and Chief Financial and
                                                     Administrative Officer of Eaton
                                                     Corporation, a diversified manufacturing
                                                     company.
Lawrence A. Leser          58        Society         President and Chief Executive Officer of
                                                     the E.W. Scripps Company, a
                                                     communications and multi-media services
                                                     company.
John C. Morley             62        Society         President and Chief Executive Officer of
                                                     Reliance Electric Company, an electro-
                                                     mechanical automation and
                                                     telecommunications equipment
                                                     manufacturer.
Peter G. Ten Eyck, II      55        KeyCorp         President of Indian Ladder Farms, a
                                                     commercial orchard.
Nancy B. Veeder            67        KeyCorp         President of Veeder Realty, Inc. and
                                                     partner in V.R. Associates Ltd, doing
                                                     business as Residence Inn.
TERM EXPIRING IN 1996
Robert A. Schumacher       70        KeyCorp         Consultant for Georgia Pacific
                                                     Corporation.
</TABLE>
 
                                       54
<PAGE>   59
 
   
<TABLE>
<CAPTION>
                                   PRESENT BOARD
         NAME              AGE      AFFILIATION                     OCCUPATION
- -----------------------    ---     -------------     ----------------------------------------
<S>                        <C>     <C>               <C>
Albert C. Bersticker       59        Society         President and Chief Executive Officer of
                                                     Ferro Corporation, a manufacturer of
                                                     industrial specialty materials.
Kenneth M. Curtis          62        KeyCorp         President, Maine Maritime Academy, an
                                                     ocean-oriented college offering degree
                                                     programs including a program to train
                                                     officers for the Merchant Marine and
                                                     Uniformed Services.
John C. Dimmer             65        KeyCorp         President of Firs Management
                                                     Corporation, a real estate and
                                                     investment company.
Charles R. Hogan           56        KeyCorp         Co-Chairman of the Board, Puget Sound
                                                     Marketing Co., Inc., an operator of a
                                                     supermarket chain.
M. Thomas Moore            59        Society         Chairman, President, and Chief Executive
                                                     Officer of Cleveland-Cliffs Inc, a
                                                     producer of iron ore pellets.
Richard W. Pogue           65        Society         Senior Partner of Jones, Day, Reavis &
                                                     Pogue, Attorneys at Law.
Dennis W. Sullivan         55        Society         Executive Vice President -- Industrial
                                                     and Automotive of Parker-Hannifin
                                                     Corporation, an aeronautic and
                                                     automotive parts manufacturer.
</TABLE>
    
 
Additional information about Messrs. Riley and Gillespie and the other
individuals designated to be directors of New Key, except for Mr. Sullivan, is
contained in KeyCorp's and Society's Proxy Statements for their respective 1993
Annual Meetings of Shareholders, relevant portions of which are incorporated by
reference in this Prospectus/Joint Proxy Statement to KeyCorp's and Society's
respective Annual Reports on Form 10-K for the year ended December 31, 1992. See
"INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE" and "AVAILABLE INFORMATION."
Mr. Sullivan was first elected as a Director of Society on November 18, 1993. He
has held his current position as Executive Vice President -- Industrial and
Automotive at Parker-Hannifin Corporation for more than the last five years. Mr.
Sullivan currently serves on the Boards of Directors of Parker-Hannifin
Corporation and Ferro Corporation and, as of December 21, 1993, beneficially
owned 400 shares of Society Common Stock (less than 1% of the total outstanding
shares). Under applicable law, adoption of the Merger Agreement by the
shareholders of KeyCorp and Society constitutes approval of the above directors
of New Key designated by Messrs. Riley and Gillespie and approved by the
respective Boards of Directors of KeyCorp and Society in accordance with the
Merger Agreement.
 
   
     The above list of the classes of directors presumes that, as presently
anticipated, the Effective Time will occur prior to the 1994 Annual Meeting of
Shareholders of Society, so that Messrs. Riley and Gillespie are listed in the
class of directors of New Key whose term will expire at that meeting which will
be the 1994 Annual Meeting of Shareholders of New Key, and that all the
directors of New Key whose term expires at the 1994 Annual Meeting of
Shareholders of New Key will be nominated for re-election as directors of New
Key for terms expiring at the 1997 Annual Meeting of Shareholders of New Key.
New Key will solicit proxies for, and use its best efforts to cause, the
election of all such persons as directors. If the 1994 Annual Meeting of
Shareholders of Society occurs prior to the Effective Time, however, the first
Annual Meeting of Shareholders of New Key will occur in 1995 and Messrs. Riley
and Gillespie, together with the other individuals from the class in the above
table whose terms are shown to expire in 1994 and Mr. Sullivan, will be in the
class of directors of New Key whose term will expire at the 1997 Annual Meeting
of Shareholders of New Key.
    
 
     After the Effective Time, and for as long as Mr. Riley is Chairman of the
Board of New Key, Messrs. Riley and Gillespie will further consult with each
other with respect to any vacancies on the Board of Directors of New Key.
Through December 31, 1998, nominations for the election of directors of New Key
may only be made by (a) the shareholders of New Key in compliance with the
procedure described in "AMENDED
 
                                       55
<PAGE>   60
 
AND RESTATED ARTICLES OF INCORPORATION AND REGULATIONS OF NEW KEY -- Regulations
of New Key" or (b) the affirmative vote of three-quarters of the entire
authorized Board of Directors of New Key and three-quarters of the members of
the Nominating Committee of New Key, if any, then in office; provided, however,
that if the Nominating Committee is unable, for any reason, to approve by the
requisite vote a nomination for election of a particular director or directors,
such nomination will be made instead by the affirmative vote of two-thirds of
the entire authorized Board of Directors of New Key and three-quarters of the
members of a committee to be comprised, depending on whether the director
position to be filled was originally held at the Effective Time by an individual
who had been a director of KeyCorp or of Society, of all of the directors then
in office who immediately prior to the Effective Time had been directors of
KeyCorp (or of Society, as the case may be) or who have been elected to fill a
director position originally held by an individual who at the Effective Time had
been a director of KeyCorp (or of Society, as the case may be); provided,
further, that, in the case of a nomination for election to fill a director
position which resulted from an increase in the size of the Board after the
Effective Time, such nomination shall be made by the affirmative vote of
three-quarters of the entire authorized Board of Directors of New Key acting
alone if the Nominating Committee is unable, for any reason, to approve by the
requisite vote a nomination to fill such director position.
 
     Committees of the Board of Directors of New Key. New Key will have an
Executive Committee of the Board of Directors comprised of at least four members
of the Board of Directors designated annually by two-thirds of the entire
authorized Board of Directors. Through December 31, 1998, Messrs. Riley and
Gillespie will each be members of the Executive Committee as long as they are
also members of the Board of Directors of New Key. Through December 31, 1998,
New Key will also have a Nominating Committee of the Board of Directors
comprised of four members of the Board of Directors designated annually by
two-thirds of the entire authorized Board of Directors. Through December 31,
1998, two of the members of the Nominating Committee will be individuals who
were serving as directors of KeyCorp at the Effective Time (one of whom will be
Mr. Riley, as long as he is a director of New Key), and the other two members of
the Nominating Committee will be individuals who were serving as directors of
Society at the Effective Time (one of whom will be Mr. Gillespie, as long as he
is a director of New Key).
 
     The Merger Agreement provides that, prior to the Effective Time, Messrs.
Riley and Gillespie will mutually agree as to the number of members of the
Executive Committee, the Compensation and Organization Committee, the Audit
Committee, and the Community Responsibility Committee, and will consult with
each other as to the formation of any other committees of the Board of Directors
of New Key and as to the appointment of members to the Executive Committee, the
Compensation and Organization Committee, the Audit Committee, the Nominating
Committee, the Community Responsibility Committee, and any other committee of
the Board of Directors of New Key. After such consultation, Messrs. Riley and
Gillespie will each designate an equal number of members to the Executive
Committee, the Compensation and Organization Committee, the Audit Committee, the
Nominating Committee, the Community Responsibility Committee, and any other
committee of the Board of Directors of New Key, subject, prior to the Effective
Time, to the approval of the respective Boards of Directors of KeyCorp and
Society and, after the Effective Time, to the approval of the Board of Directors
of New Key. After the Effective Time, and for as long as Mr. Riley is Chairman
of the Board of New Key, Messrs. Riley and Gillespie will further consult with
each other with respect to any vacancies on the Board of Directors, the
Executive Committee, the Compensation and Organization Committee, the Audit
Committee, the Nominating Committee, the Community Responsibility Committee, or
any other committee of the Board of Directors of New Key, as to the formation of
any other committee of the Board of Directors of New Key, and as to any
adjustment to the number of members of any committee of the Board of Directors
of New Key other than the Nominating Committee.
 
     Chairman of the Board and Chairman of the Executive Committee of New Key.
The Merger Agreement and the New Key Regulations provide that Mr. Riley will be
Chairman of the Board and Chairman of the Executive Committee of the Board of
Directors of New Key through December 31, 1998 or his earlier failure to
continue to be a director of New Key (whether as a result of his death,
resignation, removal, or failure to be re-elected at the expiration of his term
as director). On December 31, 1998, Mr. Riley will cease to be Chairman of the
Board and Chairman of the Executive Committee, unless he has earlier ceased to
hold those
 
                                       56
<PAGE>   61
 
positions. Mr. Gillespie will become Chairman of the Board and Chairman of the
Executive Committee of New Key on the date (which in no event will be later than
December 31, 1998) on which Mr. Riley ceases to be Chairman of the Board and
Chairman of the Executive Committee, subject, in all cases, to Mr. Gillespie's
earlier failure to continue to be a director of New Key (whether as a result of
his death, resignation, removal, or failure to be re-elected at the expiration
of his term as director). If Mr. Riley ceases, at any time prior to December 31,
1998, to hold for any reason one or both of his positions as Chairman of the
Board and Chairman of the Executive Committee, Mr. Gillespie will immediately
assume any such position, provided that he is then a director of New Key. Prior
to Mr. Gillespie's becoming Chairman of the Board and Chairman of the Executive
Committee, no individual (other than Mr. Gillespie or any other person
designated by Mr. Gillespie) will be designated vice chairman or deputy
chairman, or with any position or title of similar import, of either the Board
of Directors or the Executive Committee of New Key. The position of Chairman of
the Board of New Key will be an officer position through December 31, 1995, or
any earlier date on which Mr. Riley ceases for any reason (including death,
retirement, resignation, or removal) to be Chief Executive Officer of New Key,
and thereafter will be solely a director position and not an officer position.
 
     Chief Executive Officers of New Key Through December 31, 1998. The most
senior officer of New Key will be the President, who also will be the Chief
Executive Officer of New Key (and may use the term "Chief Executive Officer" as
part of his title) except during periods when there is a separate office of
Chief Executive Officer, in which case the officer holding the separate office
of Chief Executive Officer will be the most senior officer of New Key and the
President will be the second most senior officer. At the Effective Time, Mr.
Riley will be the Chief Executive Officer of New Key for a term expiring on
December 31, 1995, or upon his earlier death, retirement, resignation, or
removal. There will be a separate office of Chief Executive Officer of New Key
during the period from the Effective Time through December 31, 1995 or any
earlier date on which Mr. Riley ceases for any reason (including death,
retirement, resignation, or removal) to be Chief Executive Officer. There will
be no separate office of Chief Executive Officer after December 31, 1995 or any
earlier date on which Mr. Riley ceases for any reason (including death,
retirement, resignation, or removal) to be Chief Executive Officer of New Key.
 
     At the Effective Time, Mr. Gillespie will be the President of New Key for a
term expiring on December 31, 1998, or upon his earlier death, retirement,
resignation, or removal. Accordingly, at such time (which in no event will be
later than December 31, 1995) as Mr. Riley ceases for any reason to hold the
separate office of Chief Executive Officer, Mr. Gillespie will, by virtue of
being President, also be the Chief Executive Officer through the expiration of
his term on December 31, 1998, or until his earlier death, retirement,
resignation, or removal. In addition, at the Effective Time, Mr. Gillespie will
be the Chief Operating Officer of New Key for a term expiring on the date on
which Mr. Riley ceases to be the Chief Executive Officer of New Key (which in no
event will be later than December 31, 1995). On December 31, 1995, Mr. Riley
will retire from all positions he then holds as an officer of New Key or an
officer, employee, or director of any of its subsidiaries. The elections of Mr.
Riley and Mr. Gillespie to, and the retirement of Mr. Riley from, the various
offices and positions referred to under this caption "Board of Directors and
Chief Executive Officers of New Key Through December 31, 1998" will be
automatically self-executing without any further action required by the Board of
Directors of New Key or otherwise.
 
     Through December 31, 1998, neither Mr. Riley nor Mr. Gillespie may be
removed by action of the Board of Directors of New Key from any officer position
held by either of them except by the affirmative vote of three-quarters of the
entire authorized Board, and in any case without prejudice to the contract
rights of either. Notwithstanding anything to the contrary in the Merger
Agreement, any of the provisions relating to the foregoing that are contained in
the Merger Agreement and that, pursuant to the Merger Agreement, survive the
Effective Time, shall be deemed to be automatically amended to the extent
necessary to conform to the provisions of the New Key Articles of Incorporation
or the New Key Regulations as either of them may be amended after the Effective
Time in accordance with its respective terms or applicable law. See "AMENDED AND
RESTATED ARTICLES OF INCORPORATION AND REGULATIONS OF NEW KEY."
 
     See "TERMS OF THE MERGER" -- Interests of Certain Persons in the Merger --
"Interests of KeyCorp Directors and Executive Officers" and "-- Interests of
Society Executive Officers" for information regarding Employment Agreements,
each dated as of October 1, 1993, between Society and each of Mr. Riley
 
                                       57
<PAGE>   62
 
and Mr. Gillespie which are to become effective at the Effective Time between
New Key and each of them, providing for the further terms and conditions of the
employment of Mr. Riley and Mr. Gillespie by New Key. The New Key Regulations
provide that any modification, amendment, or failure to honor the terms of
either of such Employment Agreements at any time during their respective terms
shall require the affirmative vote of three-quarters of the entire authorized
Board of Directors of New Key.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
  GENERAL.
 
     Management After the Merger. In addition to the senior officer positions of
New Key to be held by Messrs. Riley and Gillespie as discussed above in "TERMS
OF MERGER -- Board of Directors and Chief Executive Officers of New Key through
December 31, 1998," at the Effective Time, the following persons will have the
responsibilities set forth below at New Key:
 
<TABLE>
<CAPTION>
         NAME              PRESENT COMPANY AFFILIATION                 RESPONSIBILITY
- -----------------------    ---------------------------     ---------------------------------------
<S>                        <C>                             <C>
Gary R. Allen+                       KeyCorp               Chief Banking Officer*
Kevin M. Blakely                     Society               Credit Policy and Asset Review
Michael A. Butler                    KeyCorp               Loan Review
Ralph M. Carestio, Jr.+              KeyCorp               Financial Services Affiliates
Carter B. Chase+                     KeyCorp               General Counsel
Allen J. Gula, Jr.                   Society               Information Technology and Operations
Francis X. Hamilton                  KeyCorp               Corporate Quality
Lee G. Irving                        KeyCorp               Treasurer
Henry L. Meyer III+                  Society               Chief Banking Officer*
A. Jay Meyerson                      Society               Marketing
Roger Noall+                         Society               Chief Administrative Officer
Bruce E. Tofte                       KeyCorp               Internal Audit and Security
Martin J. Walker                     Society               Investment Management
Stephen E. Wall                      Society               Integration Management
F. Jay Ward                          KeyCorp               Information Technology, Operations, and
                                                           Systems
James W. Wert+                       Society               Chief Financial Officer
</TABLE>
 
- ---------------
 
*Mr. Allen will be responsible for the Consumer Banking Center and for banking
 operations in Colorado, Florida, Idaho, Indiana, Maine, Michigan, New York,
 Utah, and Wyoming. Mr. Meyer will be responsible for the Commercial Market
 Center and the Trust Market Center and for banking operations in Alaska, Ohio,
 Oregon, and Washington.
 
+Members of New Key Management Committee, together with Messrs. Riley and
 Gillespie. The Management Committee is a group of senior executives who will
 guide the overall strategic direction of New Key following the Merger.
 
     Additional information about each of such persons who is an executive
officer, which is incorporated by reference in this Prospectus/Joint Proxy
Statement, is contained in KeyCorp's and Society's Annual Reports on Form 10-K
for the year ended December 31, 1992. See "TERMS OF THE MERGER -- Board of
Directors and Chief Executive Officers of New Key through December 31, 1998";
"INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE" and "AVAILABLE INFORMATION."
Also see "INTEGRATION OF KEYCORP AND SOCIETY INTO NEW KEY." Which of the
foregoing persons will be designated as executive officers of New Key will not
be capable of determination until the exact nature and scope of their respective
positions are further clarified.
 
     Indemnification. For a period of six years from the Effective Time, New Key
will maintain the indemnification rights currently provided by KeyCorp and
Society with respect to matters occurring before the Effective Time in favor of
their respective current and former employees, directors, and officers and, if
applicable, in favor of the employees, directors, and officers of their
respective subsidiaries, on terms no less
 
                                       58
<PAGE>   63
 
favorable than those provided in the charter or by-laws or regulations of
KeyCorp or Society or as otherwise in effect on the date of the Merger
Agreement.
 
     Directors' and Officers' Liability Insurance. For a period of six years
from the Effective Time, New Key will use its best efforts to maintain the
directors' and officers' liability insurance policies maintained at the date of
the Merger Agreement by KeyCorp and Society, provided that New Key may provide
substantially similar insurance policies with the same coverage and amounts in
substitution for such policies of KeyCorp and Society. Notwithstanding the
foregoing, New Key will not be obligated, in connection with maintaining any
such KeyCorp insurance policies, to expend any amount per year in excess of 200%
of the amount of the annual premiums paid as of the date of the Merger Agreement
by KeyCorp (the "KeyCorp Maximum Amount") and will not be obligated, in
connection with maintaining any such Society insurance polices, to expend any
amount in excess of 200% of the annual premiums paid as of the date of the
Merger Agreement by Society (the "Society Maximum Amount"). In the alternative,
New Key will provide and maintain the most advantageous directors' and officers'
liability insurance coverage obtainable for an annual premium equal to the
KeyCorp Maximum Amount or the Society Maximum Amount, as the case may be.
 
     Incentive Compensation Plan Calculations. KeyCorp, Society, and New Key may
pay incentive compensation under various short and long term incentive
compensation plans based on performance over the various relevant periods
determined before taking into account non-recurring charges, restructuring
charges, or other effects of the Merger.
 
     Acceleration of Certain Incentive Compensation. KeyCorp and Society will
accelerate and pay in December of 1993 certain incentive compensation earned in
1993 otherwise to be paid early in 1994. In addition, KeyCorp will accelerate
and pay to Mr. Riley in December of 1993 certain incentive compensation with
respect to 1994 (in the amount of $1,133,000).
 
  INTERESTS OF KEYCORP DIRECTORS AND EXECUTIVE OFFICERS.
 
   
     General Effect of the Merger. Upon consummation of the Merger, a new
employment agreement between New Key and Mr. Riley will become effective and
certain officers of KeyCorp will become entitled to certain benefits as a result
of "change of control" provisions under the other KeyCorp agreements and
compensation plans discussed under this subheading; see "-- Retention Program
for Executive Officers and Other Key Employees" below. KeyCorp has employment
agreements and related severance agreements with Mr. Riley and with 22 other
executive officers of KeyCorp (and a severance agreement without any related
employment agreement for one other executive officer of KeyCorp) which contain
provisions that are activated by a change of control of KeyCorp (as defined in
those agreements). KeyCorp also has similar employment and/or severance
agreements with 17 other key employees who are not executive officers. In
addition, KeyCorp maintains certain compensation related plans, more fully
described below, which contain provisions that will be activated by the Merger.
The Merger will activate certain change of control rights under all of the
agreements and plans discussed under this subheading other than the new
employment agreement between New Key and Mr. Riley. The Merger will not
constitute a change of control under the new employment agreement between New
Key and Mr. Riley and, because that new employment agreement will supersede Mr.
Riley's existing employment agreement with KeyCorp, no provision of Mr. Riley's
existing employment agreement will be activated as a result of the Merger.
    
 
     Employment and Severance Agreements With Mr. Riley. KeyCorp and Mr. Riley
are parties to an existing employment agreement entered into as of January 1,
1986 (the "1986 Employment Agreement"), which provides for the employment of Mr.
Riley as Chief Executive Officer of KeyCorp through December 31, 1994, and a
related existing severance agreement entered into as of September 1, 1990. Under
the 1986 Employment Agreement, Mr. Riley is entitled to base salary (currently
at the rate of $720,000 per annum), an annual incentive bonus in accordance with
KeyCorp's Executive Incentive Compensation Plan (pursuant to which Mr. Riley
received an annual bonus of $690,000 for 1992), three-year incentive
compensation in accordance with KeyCorp's Performance Compensation Plan
(pursuant to which Mr. Riley received long-term incentive compensation of
$1,967,400 in 1992), and certain supplemental executive retirement and death
benefits. The severance agreement between KeyCorp and Mr. Riley entitles Mr.
Riley to receive a lump sum payment equal to 299% of his base salary if, within
24 months after a change of control of KeyCorp, his employment is terminated by
KeyCorp (other than for cause, disability, or retirement) or by Mr. Riley for
 
                                       59
<PAGE>   64
 
good reason (as defined in the severance agreement). The 1986 Employment
Agreement and Mr. Riley's severance agreement both provide, in effect, that, if
any payments thereunder would otherwise be treated as excess parachute payments
under Section 280G of the Internal Revenue Code (and would therefore be
nondeductible by KeyCorp and subject to a 20% excise tax upon receipt by Mr.
Riley), the aggregate amount of those payments is to be reduced to the extent
necessary to avoid that treatment.
 
     In anticipation of the Merger, Society and Mr. Riley have entered into a
new employment agreement, to be effective at the Effective Time, pursuant to
which Mr. Riley is to be employed by New Key through December 31, 1995 as
Chairman of the Board, Chairman of the Executive Committee of the Board, and
Chief Executive Officer and thereafter, through December 31, 1998, as Chairman
of the Board and Chairman of the Executive Committee of the Board. Through
December 31, 1995, Mr. Riley's compensation is to include annual base salary of
not less than $775,000 for 1994 and $800,000 for 1995 plus an annual incentive
bonus in accordance with KeyCorp's annual incentive bonus plan and three-year
incentive compensation in accordance with KeyCorp's Performance Compensation
Plan (with minimum three-year incentive compensation of $1,500,000 in respect of
1993 and $1,040,000 in respect of 1994). From January 1, 1996 through December
31, 1998, Mr. Riley's annual compensation is to be not less than $600,000. The
new employment agreement continues provisions relating to Mr. Riley's
supplemental retirement benefit and special supplemental death benefit
substantially identical to the corresponding provisions in the 1986 Employment
Agreement. If any amount of compensation otherwise payable to Mr. Riley under
the new employment agreement as earned would not be deductible by New Key by
reason of the disallowance rules of Section 162(m) of the Internal Revenue Code
(which rules generally disallow deductions for certain compensation paid to any
of five specified "covered employees" of a publicly held corporation in excess
of $1,000,000 per year) but would be deductible if it were deferred until a
later year, that amount of compensation will be so deferred until, and to the
extent that, it is first payable without disallowance of the deduction, but in
all events all unpaid deferred amounts will be paid in a lump sum to Mr. Riley
on January 15 of the year immediately following the year in which he ceases to
be an employee of New Key. Upon payment of any such deferred amounts of
compensation, New Key will pay to Mr. Riley an additional amount equivalent to
the interest that would have accrued on the deferred compensation if interest
had accrued thereon at a rate equal to an interest rate provided with respect to
deferrals made under incentive compensation plans applicable to executives as a
group.
 
     If, at any time before December 31, 1998, (a) New Key terminates Mr.
Riley's employment other than for material breach or just cause (defined as
conviction of a felony, habitual drunkenness, excessive absenteeism that is
repeated following notice from the Board of Directors, or conflicts of interest
that continue after notice from the Board of Directors), (b) Mr. Riley
terminates his employment following a breach of the employment agreement by New
Key, including any failure of New Key to cause Mr. Riley to hold the offices
contemplated in the employment agreement during the periods contemplated in the
employment agreement, (c) Mr. Riley dies or becomes disabled, or (d) a change in
control of New Key occurs, then New Key is to pay to Mr. Riley or to his estate
or designated beneficiary a lump sum equal to the sum of all base compensation
that would have been payable to Mr. Riley had he continued to perform services
through December 31, 1998 plus all bonuses he would have received for all
periods through December 31, 1995 assuming all maximum performance targets would
have been met during those periods. If this lump sum payment is payable, Mr.
Riley will also be entitled to continuation through December 31, 1998 of
coverage under all New Key employee benefit plans (including retirement plans
and medical, disability, life, and accidental death or dismemberment insurance
plans) and of the special supplemental death benefit; to an additional "gross
up" payment if Mr. Riley is subject to the excise tax on receipt of "excess
parachute payments," as defined in Section 280G of the Internal Revenue Code,
sufficient to put Mr. Riley in the same position on an after-tax basis as if the
excise tax did not apply; to continuing indemnification to the fullest extent
permitted by Ohio law for actions against him by reason of his being or having
been a director or officer of New Key or any related entity; and to payment of
any legal fees incurred in enforcing his rights under the employment agreement.
 
     Employment Agreements and Severance Agreements With Other Executive
Officers. In addition to Mr. Riley, 22 executive officers of KeyCorp have both
employment agreements and related severance agreements that contain provisions
that will be activated by the Merger. One other executive officer has a
severance
 
                                       60
<PAGE>   65
 
agreement with no related employment agreement and 17 other key employees who
are not executive officers have either an employment agreement, a severance
agreement, or both.
 
     In general, each employment agreement provides for the employment of the
employee through a specified term of employment, the respective expiration dates
of which vary, depending upon the employee, from December 31, 1993 to November
30, 1998. Upon any termination of the employee by KeyCorp without cause, the
employee is entitled to receive all payments and benefits (including retirement
benefits) to which the employee would have been entitled had he continued to
perform services under the employment agreement through the end of the specified
term. For these purposes, "cause" includes a material breach of the employment
agreement, misconduct as an executive of KeyCorp, unreasonable neglect or
refusal to perform assigned duties, conviction of a crime involving moral
turpitude, adjudication as a bankrupt, failure to follow reasonable instructions
of superior executive officers, or imposition by a bank regulatory agency of a
final order of suspension or removal for improper conduct. If a change of
control occurs and, within six months of the date of the change of control, the
employee terminates his employment for "good reason," the employee is entitled
to receive all payments and benefits (including retirement benefits) to which
the employee would have been entitled had he continued to perform services under
the employment agreement through the end of the specified term. For these
purposes, "good reason" includes assignment of duties inconsistent with the
employee's status or any material and adverse change in the employee's
responsibilities and authority, relocation of the employee's principal office
outside of the metropolitan area in which it had been located, and any other
continuing material breach of the employment agreement by KeyCorp.
 
     In general, each severance agreement entitles the employee to receive pro
rated payments of base salary and incentive compensation through the date of
termination plus a lump sum payment if the employee's employment is terminated
by KeyCorp within 24 months after a change of control of KeyCorp (other than
termination for cause, disability, or retirement) or by the employee for good
reason. The amount of the lump sum payment varies from employee to employee and
is equal to either 100%, 200%, or 299% of the employee's annual base salary (as
in effect on the date of termination or, if higher, as in effect immediately
before the change in control). The severance agreements provide that they are to
be read in conjunction with any and all other agreements between the employee
and KeyCorp in such a manner that the employee may select and apply the
provisions in all such agreements so as to provide the employee with the
greatest possible benefits available under the circumstances existing at the
time the employee seeks to obtain those benefits.
 
     The existing employment agreements and severance agreements both provide,
in effect, that if any payments thereunder would otherwise be treated as excess
parachute payments under Section 280G of the Internal Revenue Code (and would
therefore be nondeductible by KeyCorp and subject to a 20% excise tax upon
receipt by the employee), the aggregate amount of those payments is to be
reduced to the extent necessary to avoid that treatment.
 
     The maximum possible aggregate cost that could be incurred by New Key in
connection with the existing employment agreements and severance agreements with
the 23 executive officers, other than Mr. Riley, who have one or both of such
agreements is approximately $15,700,000. Similarly, the maximum possible
aggregate cost that could be incurred by New Key in connection with the existing
employment agreements and severance agreements with the 17 other key employees
who have one or both of such agreements is approximately $4,200,000. These
maximum aggregate costs (which are estimated as of the Effective Time) would
actually be incurred by New Key only if every one of these executive officers
and key employees terminated employment immediately after the Merger under
circumstances entitling all of them to the maximum benefits possible under the
agreements, which KeyCorp and Society believe to be unlikely.
 
     Retention Program for Certain Executive Officers and Other Key Employees.
KeyCorp has developed a retention program in connection with the Merger that has
been offered to ten employees who have employment and/or severance agreements
and have been asked to move to Cleveland in connection with the Merger (nine of
whom are executive officers). The retention program includes an amendment to the
employee's existing employment and/or severance agreements and the execution of
a new change of control agreement with the employee.
 
                                       61
<PAGE>   66
 
     The amendment extends to three years after the date of the Merger the
period during which the employee may become entitled to benefits following
termination of employment and limits the circumstances under which the employee
will become entitled to such benefits to termination by New Key (except for
cause) or voluntary termination by the employee if either the employee's base
salary is reduced or relocation is made a condition of the employee's employment
(other than the move to Cleveland in connection with the Merger). Accordingly,
under the amended agreement, the employee would no longer have the right (which
generally is exercisable for shorter periods under the current agreements) to
receive benefits if the employee terminates employment because of the move to
Cleveland in connection with the Merger, any adverse change in the employee's
status or position as an employee, any changes in benefit plans or executive
perquisites, assignment of duties inconsistent with current duties, or any
material adverse change in responsibility.
 
     Under the amendment, if benefits become payable following a termination of
employment, the employee will be entitled to elect to receive either (a) such
amounts and benefits, if any, as are called for by the terms of the existing
employment and/or severance agreements in the particular circumstances of the
termination, or (b) a lump sum payment equal to 1/12 of the sum of the
employee's base salary at the time of termination and the employee's average
annual incentive compensation for the years 1991, 1992, and 1993 multiplied by
the greater of (i) 18 (i.e., 18 months of compensation) or (ii) the number of
full months between the date of the termination and the third anniversary of the
Effective Time. If the employee elects the lump sum payment, New Key would also
continue medical and life insurance coverage to the employee for up to 18 months
after the termination (or, if longer, up to the third anniversary of the
Effective Time), but not beyond the date the employee secures other employment.
 
     The amendment also provides that any compensation payable to an employee in
excess of $1 million in any calendar year will be deferred if New Key would be
denied a tax deduction for the payment of that excess in that year, that the
terms of the existing employment and severance agreements will not be extended,
and that no event occurring after the Merger will be treated as a change of
control for purposes of the existing employment and severance agreements. In
addition, the amendment clarifies that no benefits are payable under the
agreements if the employee retires under New Key's retirement plan.
 
     Each employee who agrees to the amendment described above will also enter
into a new change of control agreement which provides that if, at any time
within three years after the occurrence of a change of control (as defined in
the agreement), an employee is terminated by New Key (except for cause) or the
employee terminates employment because the employee's base salary is reduced or
relocation is made a condition of the employee's employment, New Key will pay to
the employee a lump sum severance benefit equal to two and one half years'
compensation (base salary and average annual incentive compensation) and will
pay the cost of continuing health benefits until the earlier of the expiration
of the continuation period required by federal law, or the date the employee
secures other employment. The new change of control agreement also provides a
three-month window period commencing fifteen months after the date of a change
of control during which the employee may voluntarily resign and receive a lump
sum severance benefit equal to one year's compensation (base salary and average
annual incentive compensation).
 
   
     New Stock Options to be Granted.  As part of New Key's overall compensation
program and to conform the compensation practices of KeyCorp and those of
Society, KeyCorp's Compensation Committee has determined that it will grant
three different types of stock options to members of senior management and to
certain other employees having significant responsibility. The options will be
granted pursuant to KeyCorp's 1988 Stock Option Plan to carry out the purposes
of the plan as originally adopted, i.e.: to attract and/or retain key employees
and to provide them with equity based compensation consistent with enhanced
shareholder value. All such options will be granted for ten year terms at
exercise prices equal to the fair market value of KeyCorp Common Stock on the
date of the grant, which will be January 3, 1994. Options of the first two types
would vest on the first and third anniversaries of the grant date, respectively,
and those of the third type would vest upon the achievement of a specified
increase in the fair market value of the shares subject to the option (adjusted
for the Merger and any later changes in capital structure). In addition, all
such options would vest upon the occurrence of a change of control, as defined
in the option agreements. (The Merger would not constitute a change of control
for these purposes.) The Compensation Committee will grant an overall aggregate
of approximately 1,130,000 such options, of which 66,390 will be granted to Mr.
Riley, approxi-
    
 
                                       62
<PAGE>   67
 
   
mately 448,000 will be granted to the other 23 KeyCorp executive officers as a
group, and the balance will be granted to other key employees.
    
 
     Executive Deferred Compensation Plan. Under the KeyCorp Executive Deferred
Compensation Plan, executive officers may defer up to 50% of salary and up to
100% of bonus compensation in any year either for a fixed period of not less
than seven years or through termination of employment. Amounts deferred are
credited with interest at 1/2 percentage point over the Moody's Average
Corporate Bond Yield Index as in effect from time to time. Upon the occurrence
of any change of control of KeyCorp, each participant is entitled to receive,
upon written request to the committee administering the plan, a lump sum
distribution equal to 90% of the participant's vested account balance. Upon
payment of the 90% amount to any participant following such a request, the
remaining 10% of the participant's vested account balance will be forfeited.
 
     Grantor Trusts. KeyCorp maintains grantor trusts to fund its commitments
under the KeyCorp Survivor Benefit, Supplemental Retirement, Deferred
Compensation, and Severance Plans for executive officers and its Death Benefit,
Retirement, and Deferred Compensation Plan for Directors. The trust agreements
provide that if KeyCorp fails to make payments under any of those benefit plans
when those payments are due after a change in control of KeyCorp, the trustee is
to make those payments from the assets of the trust. KeyCorp has partially
funded the trusts with life insurance policies owned by KeyCorp or, in the case
of the Survivor Benefit Plan, by the participants. As of December 31, 1992, the
value of all assets in the grantor trust for executives was approximately
$75,900,000 and the value of all assets in the grantor trust for directors was
approximately $2,800,000. Under the terms of the grantor trusts, the Merger will
constitute a change in control of KeyCorp. Accordingly, KeyCorp will be required
by the terms of the trust agreements to fund fully both trusts by contributing,
not later than the Effective Time, approximately $19,000,000 to the grantor
trust for executives and approximately $900,000 to the grantor trust for
Directors, subject to adjustment in connection with participation by KeyCorp
executives in the retention program described above. KeyCorp anticipates that it
will fund both trusts by transferring a portion of its securities portfolio to
satisfy the obligation. The transfer will not have a material effect on
KeyCorp's results of operations, liquidity, capital positions, or financial
condition.
 
  INTERESTS OF SOCIETY EXECUTIVE OFFICERS.
 
   
     General Effect of Merger. If the Merger is consummated, a new employment
agreement, dated as of October 1, 1993, between New Key and Mr. Gillespie will
become effective and certain officers of Society will become entitled to certain
benefits as a result of "change of control" provisions under the other Society
agreements and compensation plans discussed under this subheading; see "--
Retention Program for Executive Officers and Other Key Employees" below. Society
has employment agreements with Mr. Gillespie and one other executive officer
which contain provisions that are activated by a change of control of Society
(as defined in those agreements), and change of control agreements with 13 other
executive officers of Society. Society also has similar change of control
agreements with 13 other key employees who are not executive officers. In
addition, Society maintains certain compensation plans, more fully described
below, which contain provisions that are activated by a change of control of
Society. Either the Merger itself or the adoption of the Merger Agreement by the
shareholders of Society (depending upon the definition of change of control used
in the relevant document) will constitute a change of control under all the
agreements and plans discussed under this subheading other than the new
employment agreement between New Key and Mr. Gillespie. The Merger will not
constitute a change of control under the new employment agreement between New
Key and Mr. Gillespie and, because that new employment agreement will supersede
Mr. Gillespie's existing employment agreement with Society, no provisions of his
existing employment agreement will be activated as a result of the Merger.
    
 
     Employment Agreement With Mr. Gillespie. Society and Mr. Gillespie are
parties to an existing employment agreement entered into as of December 12, 1990
(the "1990 Employment Agreement") which provides for the employment of Mr.
Gillespie as Chairman of the Board and Chief Executive Officer of Society until
the date of the 1996 annual meeting of shareholders of Society (the "1996 Annual
Meeting") at an annual base salary of not less than his 1990 annual base salary
(Mr. Gillespie's current annual base salary rate is $610,000) and for an
additional two years of continuing compensation and benefits if, in 1996, the
1990 Employment Agreement is not mutually extended or a new employment agreement
is not entered into and Mr. Gillespie elects to terminate his employment and
receive those benefits. The 1990 Employment
 
                                       63
<PAGE>   68
 
Agreement also provides that Mr. Gillespie is to participate in all annual bonus
and long term incentive compensation plans maintained by Society for its senior
executive officers and provides to Mr. Gillespie certain supplemental retirement
and death benefits and for the continuation of compensation and benefits through
the second anniversary of the 1996 Annual Meeting if Mr. Gillespie's employment
is terminated under certain specified circumstances, including termination by
him for good reason (as defined in the 1990 Employment Agreement) following any
change of control of Society. The compensation and benefits to be so continued
under those circumstances ("post-termination agreement benefits") include
semi-monthly compensation continuation payments (based on base salary and
average annual incentive compensation) and benefits, including continuing
medical, long term disability, and group term life insurance benefits and
continued coverage under Society's retirement and savings plans (or, if not
permissible, an equivalent cash benefit). If any payment under the 1990
Employment Agreement would otherwise be treated as an excess parachute payment
under Section 280G of the Internal Revenue Code (and would therefore be
nondeductible by Society and subject to a 20% excise tax upon receipt by Mr.
Gillespie), the aggregate amount of payments under the 1990 Employment Agreement
is to be reduced to the extent necessary to avoid that treatment.
 
     In anticipation of the Merger, Society and Mr. Gillespie have entered into
a new employment agreement, to be effective at the Effective Time, pursuant to
which Mr. Gillespie is to be employed by New Key through December 31, 1998 at a
base salary of not less than $700,000 per year. While so employed, Mr. Gillespie
is to be President and Chief Operating Officer during a defined "Post-Merger
Period" (to expire not later than December 31, 1995) and President and Chief
Executive Officer thereafter. The new agreement is substantially similar to Mr.
Gillespie's 1990 Employment Agreement with the modifications referred to below.
 
     The term of the new agreement extends through December 31, 1998, rather
than through the date of the 1996 Annual Meeting, and post-termination agreement
benefits payable to Mr. Gillespie under certain circumstances following his
termination would accordingly be payable through December 31, 2000, rather than
through the second anniversary of the 1996 Annual Meeting. The new agreement
refers to Mr. Gillespie's positions as President and Chief Operating Officer of
New Key during the Post-Merger Period and as President and Chief Executive
Officer of New Key thereafter rather than to his current position as Chairman of
the Board and Chief Executive Officer of Society. Certain supermajority vote
requirements (governing possible Board actions affecting Mr. Gillespie's
employment) that are in Mr. Gillespie's 1990 Employment Agreement are modified
in his new agreement to conform to the provisions of the New Key Regulations.
See "TERMS OF THE MERGER -- Board of Directors and Chief Executive Officers of
New Key Through December 31, 1998" and "AMENDED AND RESTATED ARTICLES OF
INCORPORATION AND REGULATIONS OF NEW KEY -- Regulations of New Key." If any
amount of compensation otherwise payable to Mr. Gillespie under the new
employment agreement as earned would not be deductible by New Key by reason of
the disallowance rules of Section 162(m) of the Internal Revenue Code (which
rules generally disallow deductions for certain compensation paid to any of five
specified "covered employees" of a publicly held corporation in excess of
$1,000,000 per year) but would be deductible if it were deferred until a later
year, that amount of compensation will be so deferred until, and to the extent
that, it is first payable without disallowance of the deduction, but in all
events all unpaid deferred amounts will be paid in a lump sum to Mr. Gillespie
on January 15 of the year immediately following the year in which he ceases to
be an employee of New Key. Upon payment of any such deferred amounts of
compensation, New Key will pay to Mr. Gillespie an additional amount equivalent
to the interest that would have accrued on the deferred compensation if interest
had accrued thereon at a rate equal to an interest rate provided with respect to
deferrals made under incentive compensation plans applicable to executives as a
group.
 
     Under the new agreement, Mr. Gillespie may terminate his employment for
good reason (and receive post-termination agreement benefits) under certain
circumstances whether or not a change of control of New Key occurs. Those
circumstances that will constitute good reason under the new agreement whether
or not a change of control occurs include any (a) demotion or removal of Mr.
Gillespie from his executive positions (i.e., President and Chief Operating
Officer during the Post-Merger Period and President and Chief Executive Officer
thereafter), (b) reduction in Mr. Gillespie's base salary or participation in
benefit plans, (c) good faith determination by Mr. Gillespie that his
responsibilities, duties, and authority have been materially reduced from those
contemplated by his new employment agreement, or (d) relocation of Mr.
Gillespie's principal place of employment outside the Cleveland metropolitan
area. Those circumstances that will constitute good
 
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<PAGE>   69
 
reason under the new agreement only after a change of control of New Key occurs
include any reduction in Mr. Gillespie's incentive compensation or the good
faith determination by Mr. Gillespie that his responsibilities or duties have
been materially reduced from their level before the change of control or that he
is unable to carry out the responsibilities of his positions as a result of the
change of control.
 
     Under the new agreement, if Mr. Gillespie's employment with New Key
terminates before his 65th birthday for any reason other than (a) voluntary
resignation by Mr. Gillespie before December 31, 1998 (and at a time when he
does not have "good reason") or (b) termination by New Key for cause and Mr.
Gillespie (or someone claiming through him) is entitled to receive retirement
benefits under any New Key retirement plan after March 26, 1999 (Mr. Gillespie's
55th birthday), New Key will pay a supplemental retirement benefit in an amount
sufficient to provide Mr. Gillespie the same aggregate benefit that he would
have received if he had continued in the employ of New Key through his 65th
birthday (by eliminating any reduction because he started receiving benefits
before his 65th birthday and giving him credit for additional years of service
for the period after his termination date and before his 65th birthday).
 
     Employment and Change of Control Agreements With Other Executive Officers.
In addition to Mr. Gillespie, Society has an employment agreement with one other
executive officer and change of control agreements with 13 other executive
officers. Society also has similar change of control agreements with 13 other
key employees who are not executive officers.
 
     If, during the two year period following the Merger, the other executive
with whom Society has an employment agreement suffers a reduction in
compensation or benefits, is required to relocate, or determines in good faith
that he is unable to carry out his duties as a result of the Merger, he will be
entitled to terminate his employment and receive continuing compensation and
benefits through the second anniversary of the 1996 Annual Meeting of
Shareholders of New Key, subject to the limitation that amounts otherwise
payable will be reduced to the extent, if any, necessary to avoid having any of
the payments treated as excess parachute payments under Section 280G of the
Internal Revenue Code.
 
     Under the change of control agreements between Society and each of 13
executive officers (and each of the 13 other key employees who are not executive
officers), an employee will become entitled to receive payments and benefits if
the employee's employment with Society is terminated (a) voluntarily by the
employee during a three-month window period commencing fifteen months after the
date of a change of control or (b) for any reason within two years after the
date of a change of control, other than termination for cause, disability, or
death and other than the employee voluntarily resigning (outside the three-month
window period) unless the employee's base salary has been reduced or the
principal place of the employee's employment has been relocated. Rights under
change of control agreements with 19 of the employees were activated on March
16, 1992 as a result of the consummation of the Ameritrust acquisition on that
date. The period during which these rights may be exercised under these change
of control agreements will be extended, and rights under seven new change of
control agreements that were entered into after the date of the Ameritrust
acquisition with seven other employees will be activated, as a result of the
Merger. Accordingly, a new three-month window period during which the employee
may voluntarily terminate and receive payments and benefits under a change of
control agreement will commence fifteen months after the Effective Time and the
employee will be entitled to payments and benefits following termination for any
reason within two years after the Effective Time other than termination for
cause, disability, or death and other than the employee voluntarily resigning
(outside the three-month window period) unless the employee's base salary has
been reduced or the principal place of the employee's employment has been
relocated.
 
     If an employee becomes entitled to receive payments and benefits under a
change of control agreement upon termination of the employee's employment within
two years following the Effective Time, Society will provide monthly
compensation continuation payments (based upon base salary and average annual
incentive compensation) for 24 months plus a lump-sum severance payment equal to
six months base salary and average incentive compensation. In addition, Society
will continue to provide or arrange medical benefits, long-term disability
benefits, and group term life insurance benefits for 24 months and will continue
the employee in all retirement and savings plans for the 24-month period unless
impermissible under the plan or applicable law, in which case Society will make
an equivalent lump-sum cash payment. Certain of these payments may be reduced if
the employee accepts other full-time employment with an unaffiliated employer
 
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<PAGE>   70
 
during the 24-month period following termination of employment. Such payments
will be payable after the death of the employee to his surviving beneficiaries,
to his estate, or to a trust.
 
     Society has agreed to indemnify the employee, to the full extent permitted
or authorized by Ohio law, if the employee is made or threatened to be made a
party to any action, suit, or proceeding by reason of the employee's serving as
an officer or director of Society and/or any of its subsidiaries or any other
company at the request of Society or any of its subsidiaries, and Society has
agreed, from and after a change of control, to advance expenses incurred by the
employee in defending any such action, suit, or proceeding.
 
     The maximum possible aggregate cost that could be incurred by New Key in
connection with the existing employment agreement with the one executive officer
other than Mr. Gillespie who has such an agreement and in connection with the
existing change of control agreements with the 13 other executive officers who
have such agreements is approximately $14,700,000. Similarly, the maximum
possible aggregate cost that could be incurred by New Key in connection with the
existing change of control agreements with the 13 other key employees who have
such agreements is approximately $8,800,000. These maximum aggregate costs
(which are estimated as of the Effective Time) would actually be incurred by New
Key only if every one of these executive officers and key employees was
terminated immediately after the Merger under circumstances entitling all of
them to the maximum benefits possible under the agreements, which KeyCorp and
Society believe to be unlikely.
 
     Retention Program for Executive Officers and Other Key Employees.  Society
has developed a retention program in connection with the Merger that has been
offered to each of the 13 executive officers and 13 other key employees who have
change of control agreements with Society. The retention program includes an
amendment to the employee's existing change of control agreement and the
execution of a new change of control agreement with the employee.
 
     The amendment to the existing change of control agreement extends to three
years after the date of the Merger the period during which the employee may
become entitled to benefits following termination of employment. Under the
amendment to the change of control agreement: if benefits become payable
following termination of employment during the first 18 months after the Merger,
those benefits ("Amended Original Benefits") would be as provided in the
original change of control agreement except that, in determining the level of
termination payments based upon base salary and incentive compensation,
increases in the employee's base salary after the Effective Time and incentive
compensation awards for the year of the Merger and later years would be
disregarded. If benefits become payable following termination of employment at
any time during the 25th through 36th months after the Merger, those benefits
("New Benefits") would include a lump sum severance payment equal to 150% of the
sum of the employee's annual base salary (at the level in effect at the
Effective Time) plus the employee's average annual incentive compensation for
the years 1991, 1992, and 1993 and continued medical and life insurance coverage
for up to 18 months after the termination (but not beyond the date the employee
became employed with another firm). If benefits become payable following
termination of employment at any time during the 19th through 24th months after
the Effective Time, the employee would have the right to elect to receive either
Modified Original Benefits or New Benefits.
 
     The amendment to the existing change of control agreement also provides
that any compensation payable to the employee in excess of $1 million in any
calendar year will be deferred if New Key would be denied a tax deduction for
the payment of that excess in that year, that the original change of control
agreement will not apply to any termination occurring after the third
anniversary of the Merger, and that no event occurring after the Merger will be
treated as a change of control for purposes of the original change of control
agreement.
 
     Each employee who agrees to the amendment described above will also enter
into a new change of control agreement which provides that if, at any time
within three years after the occurrence of a change of control (as defined in
the agreement), an employee is terminated by New Key (except for cause) or the
employee terminates employment because the employee's base salary is reduced or
relocation is made a condition of the employee's employment, New Key will pay to
the employee a lump sum severance benefit equal to two and one half years'
compensation (base salary and average annual incentive compensation) and will
pay the cost of continuing health benefits until the earlier of the expiration
of the continuation period required by Federal law or the date the employee
secures other employment. The new change of control agreement also provides a
three-month window period commencing fifteen months after the date of a change
 
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<PAGE>   71
 
of control during which the employee may voluntarily resign and receive a lump
sum severance benefit equal to one year's compensation (base salary and average
annual incentive compensation).
 
   
     New Stock Options to be Granted. As part of New Key's overall compensation
program and to conform the compensation practices of Society and those of
KeyCorp, Society's Compensation and Organization Committee has determined that
it will grant three different types of stock options to members of senior
management and to certain other employees having significant responsibility. The
options will be granted pursuant to Society's 1991 Equity Compensation Plan to
carry out the purposes of that plan as originally adopted, i.e.: to attract
and/or retain key employees and to provide them with equity based compensation
consistent with enhanced shareholder value. All such options will be granted for
ten year terms at exercise prices equal to the fair market value of Society
Common Stock on the date of the grant, which will be January 3, 1994. Options of
the first two types would vest on the first and third anniversaries of the grant
date, respectively, and those of the third type would vest upon the achievement
of a specified increase in the fair market value of the shares subject to the
option (adjusted for any later changes in capital structure). In addition, all
such options would vest upon the occurrence of a change of control, as defined
in the option agreements. (The Merger would not constitute a change of control
for these purposes.) The Compensation and Organization Committee will grant an
overall aggregate of 1,245,000 such options, of which 120,000 will be granted to
Mr. Gillespie, 440,000 will be granted to the other 14 Society executive
officers as a group, and the balance will be granted to other key employees.
    
 
     Awards under the 1991 Equity Compensation Plan. Society maintains the 1991
Equity Compensation Plan pursuant to which it may grant awards of options, stock
appreciation rights, limited stock appreciation rights, restricted stock, and
performance shares. As of the date of this Prospectus/Joint Proxy Statement, the
only awards outstanding under the 1991 Equity Compensation Plan are certain
nonqualified options to acquire shares of Society Common Stock and the only such
options that are not now exercisable in full are certain options granted on
March 16, 1992 that are scheduled to first become exercisable on March 16, 1995
and certain options granted on April 5, 1993 that are scheduled to first become
exercisable on April 5, 1994. The 1991 Equity Compensation Plan provides in part
that, unless otherwise specified in an award instrument, upon the occurrence of
a change of control of Society each outstanding option shall immediately become
exercisable in full. The Merger will constitute a change of control for purposes
of the 1991 Equity Compensation Plan. Therefore, if the Effective Time occurs
before the date on which the options granted on March 16, 1992 and April 5, 1993
otherwise would have first become exercisable, those options will instead become
exercisable in full at the Effective Time. As to Mr. Gillespie and all fifteen
executive officers of Society as a group, the number of shares of Society Common
Stock with respect to which these individuals hold options granted on March 16,
1992 (at an exercise price of $28.25 per share of Society Common Stock) are
40,000 and 218,000, respectively, and the number of shares of Society Common
Stock with respect to which these individuals hold options granted on April 5,
1993 (at an exercise price of $33.9375 per share of Society Common Stock) are
40,000 and 222,000, respectively.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     KeyCorp has received an opinion of Sullivan & Cromwell to the effect that
the federal income tax consequences of the Merger will be as follows:
 
          (a) the Merger will constitute a tax-free reorganization under Section
     368(a)(1)(A) of the Internal Revenue Code and KeyCorp and Society will each
     be a party to the reorganization;
 
          (b) no income, gain, or loss will be recognized by either KeyCorp or
     Society as a result of the consummation of the Merger;
 
          (c) no income, gain, or loss will be recognized by a shareholder of
     KeyCorp upon the exchange of shares of KeyCorp Common Stock for New Key
     Common Stock (including the New Key Rights) or shares of KeyCorp Preferred
     Stock for New Key Preferred Stock pursuant to the Merger, except as
     discussed below with respect to cash received in lieu of a fractional share
     interest in New Key Common Stock;
 
          (d) the adjusted tax basis of the New Key Common Stock and New Key
     Preferred Stock received by a shareholder of KeyCorp pursuant to the Merger
     will be the same as the adjusted tax basis of the
 
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<PAGE>   72
 
     shares of KeyCorp Common Stock (reduced only by amounts allocable to a
     fractional share interest for which cash is to be received) and New Key
     Preferred Stock, respectively, surrendered in exchange therefor;
 
          (e) the holding period of the New Key Common Stock or New Key
     Preferred Stock received by a shareholder of KeyCorp in the Merger will
     include the period during which the shares of KeyCorp Common Stock or
     KeyCorp Preferred Stock, respectively, surrendered in exchange therefor
     were held, provided that such KeyCorp Common Stock or KeyCorp Preferred
     Stock, in each case, is held as a capital asset by the KeyCorp shareholder
     at the Effective Time.
 
     Society has received an opinion of Thompson, Hine and Flory that the Merger
will constitute a tax-free reorganization under Section 368(a)(1)(A) of the
Internal Revenue Code, that KeyCorp and Society will each be a party to the
reorganization, and that no gain or loss will be recognized by either Society or
its shareholders as a result of the consummation of the Merger except in the
case of dissenting shareholders as discussed below.
 
     The above tax opinions are based upon certain customary representations and
assumptions (including satisfaction of the continuity of interest requirement)
referred to in the opinion letters. It is a condition to consummation of the
Merger that KeyCorp and Society also receive the above tax opinions as of the
Effective Time.
 
     Cash Received in Lieu of Fractional Shares. A KeyCorp shareholder who
receives cash in the Merger in lieu of a fractional share interest in New Key
Common Stock will be treated for federal income tax purposes as having received
cash in redemption of such fractional share interest. The shareholder will
recognize gain or loss as of the Effective Time equal to the difference between
the amount of cash received and the portion of the shareholder's adjusted tax
basis in the shares of KeyCorp Common Stock allocable to the fractional share
interest. Any gain or loss will be capital gain or loss if the shareholder holds
the KeyCorp Common Stock as a capital asset at the Effective Time and will be
long-term capital gain or loss if the holding period (determined as described
above) for the fractional share interest deemed to be received and then redeemed
is more than one year.
 
     Cash Received by Shareholders Who Exercise Dissenters' Rights. A holder of
KeyCorp Common Stock or Society Common Stock who exercises dissenters' rights
and who receives cash in exchange for such holder's shares will be treated as
having received such payment in redemption of the shares. In general, if the
shares are held as a capital asset at the Effective Time, the holder will
recognize capital gain or loss measured by the difference between the amount of
cash received and the holder's adjusted tax basis for the shares. If, however,
the holder owns, either actually or constructively under the constructive
ownership rules of Section 318 of the Internal Revenue Code, any KeyCorp Common
Stock or Society Common Stock that is exchanged in the Merger for New Key Common
Stock, the payment made to such holder could, in certain circumstances, be
treated as dividend income. In general, under the constructive ownership rules
of the Internal Revenue Code, a holder may be considered to own stock that is
owned, and in some cases constructively owned, by certain related individuals or
entities, as well as stock that the holder (or related individuals or entities)
has the right to acquire by exercising an option or converting a convertible
security. Each holder who contemplates exercising dissenters' rights should
consult such holder's own tax advisor as to the possibility that any payment to
such holder will be treated as dividend income.
 
     Under Revenue Ruling 90-11 of the Internal Revenue Service, the New Key
Rights accompanying the New Key Common Stock received by former holders of
KeyCorp Common Stock in the Merger will be considered part of the New Key Common
Stock prior to the occurrence of a Triggering Event (as defined in the New Key
Rights Agreement). The current position of the Internal Revenue Service as set
forth in several private letter rulings is that the receipt of such rights upon
the exchange of shares in a merger that is a tax-free reorganization does not
give rise to the realization of gross income. Accordingly, the tax opinion set
forth in subparagraph (c) above, that a holder of KeyCorp Common Stock will not
realize gross income on the receipt of New Key Rights in the Merger, is based
upon the current ruling position of the Internal Revenue Service. No assurance
can be given that the Internal Revenue Service will not change its position on
the tax treatment of rights in a merger and assert that such receipt of rights
results in the realization of gross income to the extent of the value of such
rights, if any, when received. See "COMPARISON OF CERTAIN RIGHTS OF
 
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<PAGE>   73
 
HOLDERS OF CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY -- Shareholders Rights
Plans."
 
     THE FEDERAL INCOME TAX DISCUSSION SET FORTH ABOVE IS BASED UPON CURRENT
LAW. SUCH DISCUSSION MAY NOT BE APPLICABLE TO A KEYCORP SHAREHOLDER WHO ACQUIRED
SHARES OF KEYCORP COMMON STOCK PURSUANT TO THE EXERCISE OF AN EMPLOYEE OR
DIRECTOR STOCK OPTION OR OTHERWISE AS COMPENSATION. BECAUSE EACH SHAREHOLDER'S
TAX CIRCUMSTANCES MAY DIFFER, EACH SHAREHOLDER IS URGED TO CONSULT HIS OWN TAX
ADVISOR CONCERNING THE SPECIFIC TAX CONSEQUENCES OF THE MERGER TO SUCH
SHAREHOLDER, INCLUDING THE APPLICABILITY AND EFFECT OF STATE, LOCAL, AND OTHER
TAX LAWS AND ANY PROPOSED CHANGES IN SUCH TAX LAWS.
 
ACCOUNTING TREATMENT OF MERGER
 
     The Merger, if consummated as proposed, will qualify as a pooling of
interests for accounting and financial reporting purposes. Accordingly, under
generally accepted accounting principles, the assets and liabilities of KeyCorp
will be combined with those of Society and carried forward at book values. In
addition, the statements of operations of KeyCorp will be combined with the
statements of operations of Society on a retroactive basis. The obligations of
KeyCorp and Society to consummate the Merger are conditioned, among other
matters, upon the receipt by each of them of a letter from Ernst & Young,
independent auditors of both KeyCorp and Society, that the Merger will qualify
for pooling of interests accounting treatment under generally accepted
accounting principles. See "UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL
STATEMENTS."
 
NYSE LISTING
 
     The Society Common Stock is listed on the NYSE. Society has agreed to use
its best efforts to cause the listing on the NYSE of (a) the New Key Common
Stock to be issued in the Merger, (b) the New Key Rights which will accompany
the New Key Common Stock issued in the Merger, and (c) the New Key Depositary
Shares, each representing a one-fifth interest in one share of the New Key
Preferred Stock to be issued in the Merger.
 
EXPENSES
 
     The Merger Agreement provides, in general, that KeyCorp and Society will
each pay its own expenses in connection with the Merger Agreement and the
transactions contemplated thereby, including fees and expenses of its own
financial and other consultants, investment bankers, accountants, and counsel
except that KeyCorp and Society will divide equally the costs of printing this
Prospectus/Joint Proxy Statement and all listing, filing, and registration fees
paid by or incurred on behalf of New Key, including fees paid to the SEC and
other regulatory agencies.
 
     Notwithstanding the foregoing, in the event that either KeyCorp or Society
terminates the Merger Agreement due to a material breach by the other party of
any of such other party's representations, warranties, covenants, or agreements
contained in the Merger Agreement, the costs and expenses incurred by KeyCorp or
Society, as the case may be, in connection with the Merger Agreement and the
transactions contemplated by the Merger Agreement shall be paid by such
breaching party, including all fees of financial and other consultants,
investment bankers, accountants, and counsel. In addition, all such costs and
expenses incurred by KeyCorp will be paid by Society in the case of a
"Repurchase Event" (defined in the Merger Agreement as a Subsequent Triggering
Event as defined in the KeyCorp Option Agreement) with respect to the KeyCorp
Option Agreement and all such costs and expenses incurred by Society will be
paid by KeyCorp in the case of a "Repurchase Event" (defined in the Merger
Agreement as a Subsequent Triggering Event as defined in the Society Option
Agreement) with respect to the Society Option Agreement, provided that, in
either case, the Merger has not been, or is not thereafter, consummated for any
reason other than a termination because of a material breach by the party being
reimbursed. See "TERMS OF THE MERGER -- Waiver of Conditions, Amendment, or
Termination of the Merger Agreement" and "KEYCORP AND SOCIETY STOCK OPTION
AGREEMENTS AND SHAREHOLDER RIGHTS AGREEMENTS; RESALES OF NEW KEY CAPITAL STOCK
- -- The KeyCorp and Society Option Agreements."
 
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<PAGE>   74
 
                       RIGHTS OF DISSENTING SHAREHOLDERS
 
KEYCORP SHAREHOLDERS
 
     Holders of shares of KeyCorp Common Stock who so desire are entitled to
relief as dissenting shareholders under Section 910 of the New York Business
Corporation Law. However, a holder of shares of KeyCorp Common Stock shall only
be entitled to such rights if he complies with Section 623 of the New York
Business Corporation Law. The following summary does not purport to be a
complete statement of the method of compliance with Section 623 and is qualified
in its entirety by reference to that Section which is attached hereto as
Appendix VII. Holders of KeyCorp Preferred Stock, represented by the related
KeyCorp Depositary Shares, are not, as such, entitled to dissenters' rights.
 
     A KeyCorp shareholder who wishes to perfect his rights as a dissenting
shareholder in the event the Merger Agreement is adopted must:
 
          (a) neither vote for nor consent in writing to the adoption of the
     Merger Agreement; and
 
          (b) file with KeyCorp, before the taking of the vote on the Merger
     Agreement at the KeyCorp Meeting, a written objection to the Merger. Such
     written objection must include a notice of his election to dissent, his
     name and residence address, the number and classes of shares as to which he
     dissents, and a demand for payment of the fair value of his shares if the
     Merger Agreement is approved.
 
     Any written demand for payment pursuant to clause (b) of the immediately
preceding paragraph should be mailed or delivered to KeyCorp, One KeyCorp Plaza,
Albany, New York 12201-0088, Attention: Secretary. Because the written demand
must be delivered before the shareholder vote on the Merger Agreement, it is
recommended, although not required, that a shareholder using the mails should
use certified or registered mail, return receipt requested, to confirm that he
has made a timely delivery.
 
     Within 10 days after the KeyCorp Meeting, KeyCorp or New Key, as the case
may be, will notify by registered mail each of the shareholders who has
delivered a written objection and who did not vote for the Merger. The notice
will be sent by registered mail, return receipt requested, addressed to the
shareholder at his address as it appears on the records of KeyCorp.
 
     A KeyCorp shareholder may not dissent as to less than all of his shares as
to which he has a right to dissent, held by him of record, that he owns
beneficially. Upon consummation of the Merger, dissenting shareholders will
cease to have any of the rights of a shareholder of KeyCorp except the right to
be paid the fair value for their shares.
 
     A notice of election to dissent may be withdrawn by the shareholder at any
time prior to his acceptance in writing of an offer made by New Key in
accordance with the statute, but in no case later than 60 days from the date of
the consummation of the Merger except that if New Key fails to make a timely
offer, the time for withdrawing a notice of election will be extended until 60
days from the date an offer is made. Thereafter, withdrawal of a notice of
election requires the written consent of New Key. If a notice of election is
withdrawn, or if the Merger Agreement is rescinded, or if a court determines
that the shareholder is not entitled to receive payment for his shares, or if
the shareholder otherwise loses his dissenters' rights, the shareholder will not
have the right to receive payment for his shares, but he will be reinstated to
all his rights as a shareholder as of the consummation of the Merger.
 
     At the time of filing the notice of election to dissent or within one month
thereafter, the holder of shares represented by certificates must submit the
certificates representing his shares to New Key, or to New Key's transfer agent,
which shall note conspicuously thereon that a notice of election to dissent has
been filed and shall return the certificates to the shareholder. Any holder of
shares represented by certificates who fails to submit his certificates for such
notation shall, at the option of New Key exercised by written notice to the
shareholder within 45 days from the date of filing of such notice of election to
dissent, lose his dissenters' rights unless a court, for good cause shown,
otherwise directs.
 
     Within 15 days after the expiration of the period within which shareholders
may file their notices of election to dissent, or within 15 days after the
Effective Time, whichever is later (but in no case later than 90 days from the
date of the KeyCorp Meeting), New Key will make a written offer by registered
mail to each
 
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<PAGE>   75
 
shareholder who has filed such notice of election to pay for his shares at a
specified price which New Key considers to be their fair value. Such offer shall
be accompanied by a statement setting forth the aggregate number of shares with
respect to which notices of election to dissent have been received and the
aggregate number of holders of such shares. If the Merger has been consummated,
such offer shall be accompanied by (a) advance payment to each such shareholder
who has submitted the certificates representing his shares to the corporation of
an amount equal to 80 percent of the amount of such offer or (b) as to each
shareholder who has not yet submitted his certificates a statement that advance
payment to him of an amount equal to 80 percent of the amount of such offer will
be made by New Key promptly upon submission of his certificates.
 
     If New Key fails to make such offer within the 15-day period, or if New Key
makes the offer and any dissenting shareholder or shareholders fail to agree
with New Key within the 30-day period thereafter upon the price to be paid for
their shares:
 
          (a) New Key shall, within 20 days after the expiration of whichever is
     applicable of the two periods last mentioned, institute a special
     proceeding in the supreme court in the judicial district in Albany to
     determine the rights of dissenting shareholders, and to fix the fair value
     of their shares.
 
          (b) If New Key fails to institute such proceeding within such 20-day
     period, any dissenting shareholder may institute such proceeding for the
     same purpose not later than 30 days after the expiration of the 20-day
     period. If the proceeding is not instituted within such 30-day period, all
     dissenters' rights will be lost unless the supreme court, for good cause
     shown, otherwise decides.
 
          (c) All dissenting shareholders, except those who have agreed with New
     Key for their shares, will be made parties to the proceeding.
 
          (d) The court will determine whether each dissenting shareholder is
     entitled to receive payment for his shares. If the court finds that a
     dissenting shareholder is entitled to payment for his shares, the court
     will fix the fair value of the shares as of the day before the date of the
     KeyCorp Meeting. In fixing the fair value of the shares, the court shall
     consider the nature of the transaction giving rise to the shareholder's
     right to receive payment for his shares and its effects on the corporation
     and its shareholders, the concepts and methods then customary in the
     relevant securities and financial markets for determining fair value of
     shares of a corporation engaging in a similar transaction under comparable
     circumstances, and all other relevant factors. The final order of the court
     shall be entered against New Key in favor of each dissenting shareholder
     who is a party to the proceeding and is entitled to the value of his
     shares. The final order includes interest payable from the Effective Time
     until payment at an interest rate to be determined by the court, unless the
     court finds that the refusal of any shareholder to accept the offer of
     payment was arbitrary, vexatious, or otherwise not in good faith.
 
          (e) Each party to the proceeding shall bear its own costs and
     expenses, including the fees and expenses of its counsel and any experts
     employed. The court may, however, in its discretion, apportion and assess
     all or any part of the costs, expenses, and fees incurred by New Key
     against any or all of the dissenting shareholders who are parties to the
     proceeding, including those who withdraw their notices of election to
     dissent, if the court finds that the dissenting shareholders' refusal to
     accept New Key's offer is arbitrary, vexatious, or otherwise not in good
     faith. Likewise, the court may apportion and assess all or any of the
     costs, expenses, and fees incurred by any or all of the dissenting
     shareholders who are parties to the proceeding against New Key if the court
     finds any of the following: (i) that the fair value of the shares as
     determined materially exceeds the amount which New Key offered to pay; (ii)
     that no offer or required advance payment was made by New Key; (iii) that
     New Key failed to institute the special proceeding within the required time
     period; or (iv) that the action of New Key in complying with its
     obligations under the statute was arbitrary, vexatious, or otherwise not in
     good faith.
 
          (f) Within 60 days after final determination of the proceeding, New
     Key will pay to each dissenting shareholder the amount found to be due him,
     upon surrender of the certificates for any such shares represented by
     certificates.
 
     If more than ten percent or a lesser percentage, if applicable, of KeyCorp
shareholders perfect their rights as dissenting shareholders, the ability of the
Merger, if completed as proposed, to qualify as a pooling of
 
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<PAGE>   76
 
interests for accounting and financial reporting purposes may be adversely
affected. The qualification of the Merger for pooling of interests accounting is
a condition of the respective obligations of KeyCorp and Society to effect the
Merger. See "TERMS OF THE MERGER -- Conditions to the Merger" and "-- Accounting
Treatment of Merger." For a discussion of the tax consequences to a holder of
KeyCorp Common Stock exercising dissenters' rights, see "TERMS OF THE MERGER --
Certain Federal Income Tax Consequences."
 
     BECAUSE A PROXY CARD WHICH DOES NOT CONTAIN VOTING INSTRUCTIONS WILL,
UNLESS REVOKED, BE VOTED FOR ADOPTION OF THE MERGER AGREEMENT, A KEYCORP
SHAREHOLDER WHO WISHES TO EXERCISE HIS DISSENTERS' RIGHTS MUST EITHER NOT SIGN
AND RETURN HIS PROXY CARD OR, IF HE SIGNS AND RETURNS HIS PROXY CARD, VOTE
AGAINST OR ABSTAIN FROM VOTING ON THE ADOPTION OF THE MERGER AGREEMENT.
 
SOCIETY SHAREHOLDERS
 
     Holders of shares of Society Common Stock who so desire are entitled to
relief as dissenting shareholders under Section 1701.84 of the Ohio General
Corporation Law. However, a shareholder of Society will be entitled to such
relief only if he complies with Section 1701.85. The following summary does not
purport to be a complete statement of the method of compliance with Section
1701.85 and is qualified in its entirety by reference to that Section, which is
attached hereto as Appendix VIII.
 
     A Society shareholder who wishes to perfect his rights as a dissenting
shareholder in the event the Merger Agreement is adopted:
 
          (a) must have been a record holder of the shares of Society Common
     Stock as to which he seeks relief as of the date fixed for the
     determination of shareholders entitled to notice of the Society Meeting;
 
          (b) must not have voted his shares of Society Common Stock in favor of
     adoption of the Merger Agreement; and
 
          (c) must deliver to Society, not later than 10 days after the Society
     Meeting, a written demand for payment to him of the fair cash value of the
     shares as to which he seeks relief. This written demand must state the name
     of the shareholder, his address, the number of shares as to which he seeks
     relief, and the amount claimed as the fair cash value thereof.
 
     A vote against adoption of the Merger Agreement will not satisfy the
requirements of a written demand for payment as described in clause (c) of the
immediately preceding paragraph. Any written demand for payment should be mailed
or delivered to Society Corporation, 127 Public Square, Cleveland, Ohio 44114-
1306, Attention: Secretary. As the written demand must be delivered within the
10-day period following the Society Meeting, it is recommended, although not
required, that a shareholder using the mails use certified or registered mail,
return receipt requested, to confirm that he has made a timely delivery.
 
     If Society sends to a dissenting shareholder, at the address specified in
his demand, a request for the certificates representing the shares as to which
he seeks relief, the dissenting shareholder, within fifteen days from the date
of sending such request, shall deliver to Society the certificates requested.
Society will then endorse the certificates with a legend to the effect that a
demand for the fair cash value of such shares has been made, and return such
endorsed certificates to the dissenting shareholder. Failure on the part of the
dissenting shareholder to deliver such certificates terminates his rights as a
dissenting shareholder at the option of Society, exercised by written notice to
the dissenting shareholder within twenty days after the lapse of the fifteen-day
period, unless a court for good cause shown otherwise directs.
 
     Unless the dissenting shareholder and Society shall agree on the fair cash
value per share of Society Common Stock as to which relief is sought, either
may, within three months after the service of the written demand by the
shareholder, file a petition in the Court of Common Pleas of Cuyahoga County,
Ohio. If the court finds that the shareholder is entitled to be paid the fair
cash value of any shares, the court may appoint one or more appraisers to
receive evidence and to recommend a decision on the amount of the fair cash
value.
 
     Fair cash value will be determined as of the day prior to the Society
Meeting, will be the amount a willing seller and willing buyer would accept or
pay with neither being under compulsion to sell or buy, will not exceed
 
                                       72
<PAGE>   77
 
the amount specified in the shareholder's written demand, and will exclude any
appreciation or depreciation in market value resulting from the Merger. The
court will make a finding as to the fair cash value of a share and render
judgment against Society for its payment with interest at such rate and from
such date as the court considers equitable. The costs of proceedings shall be
assessed or apportioned as the court considers equitable.
 
     The rights of any dissenting shareholder will terminate if (a) he has not
complied with Section 1701.85 of the Ohio General Corporation Law, unless
Society by its Board of Directors waives such failure, (b) Society abandons or
is finally enjoined or prevented from carrying out, or the shareholders of
Society rescind their adoption of, the Merger, (c) the dissenting shareholder
withdraws his written demand, with the consent of Society by its Board of
Directors, or (d) Society and the dissenting shareholder shall not have agreed
upon the fair cash value per share of Society Common Stock and neither shall
have timely filed or joined in a petition in an appropriate court for a
determination of the fair cash value of the shares. For a discussion of the tax
consequences to a shareholder exercising dissenters' rights, see "TERMS OF THE
MERGER -- Certain Federal Income Tax Consequences."
 
     If more than ten percent or a lesser percentage, if applicable, of Society
shareholders perfect their rights as dissenting shareholders, the ability of the
Merger, if completed as proposed, to qualify as a pooling of interests for
accounting and financial reporting purposes may be adversely affected. The
qualification of the Merger for pooling of interests accounting is a condition
of the respective obligations of KeyCorp and Society to effect the Merger. See
"TERMS OF THE MERGER -- Conditions to the Merger" and "-- Accounting Treatment
of Merger."
 
     BECAUSE A PROXY CARD WHICH DOES NOT CONTAIN VOTING INSTRUCTIONS WILL,
UNLESS REVOKED, BE VOTED FOR ADOPTION OF THE MERGER AGREEMENT, A SOCIETY
SHAREHOLDER WHO WISHES TO EXERCISE HIS DISSENTERS' RIGHTS MUST EITHER NOT SIGN
AND RETURN HIS PROXY CARD OR, IF HE SIGNS AND RETURNS HIS PROXY CARD, VOTE
AGAINST OR ABSTAIN FROM VOTING ON THE ADOPTION OF THE MERGER AGREEMENT.
 
                  KEYCORP AND SOCIETY STOCK OPTION AGREEMENTS
      AND SHAREHOLDER RIGHTS AGREEMENTS; RESALES OF NEW KEY CAPITAL STOCK
 
THE KEYCORP AND SOCIETY OPTION AGREEMENTS
 
     Following the execution of the Merger Agreement, KeyCorp executed and
delivered the KeyCorp Option Agreement, pursuant to which KeyCorp granted to
Society the KeyCorp Option. At the same time, Society executed and delivered the
Society Option Agreement, pursuant to which Society granted KeyCorp the Society
Option. KeyCorp and Society approved, and entered into, the KeyCorp and Society
Option Agreements to induce each other to enter into the Merger Agreement. One
effect of the KeyCorp Option Agreement and the Society Option Agreement is to
increase the likelihood that the Merger will be consummated by making it more
difficult and more expensive for another party to obtain control of or acquire
either KeyCorp or Society. KeyCorp and Society believe that the exercise of an
Issuer Option would likely bar any acquiror of the Issuer (as defined herein) of
the Issuer Option from accounting for an acquisition of, or merger with, the
issuing party using the pooling of interests accounting method for a period of
up to two years. The following description does not purport to be complete and
is qualified in its entirety by reference to the KeyCorp Option Agreement and
the Society Option Agreement, attached hereto as Appendices V and VI,
respectively.
 
     Except as otherwise noted below, the terms and conditions of the KeyCorp
Option Agreement and the Society Option Agreement are identical in all material
respects. For the purposes of this section, except as otherwise noted, (a) the
KeyCorp Option Agreement and the Society Option Agreement are sometimes
individually referred to as the "Option Agreement" and collectively as the
"Option Agreements," (b) KeyCorp and Society, as issuer of the KeyCorp Common
Stock and Society Common Stock issuable upon exercise of the KeyCorp Option and
the Society Option, respectively, are sometimes individually referred to as the
"Issuer," (c) KeyCorp and Society, as the holder of the Society Option and the
KeyCorp Option, respectively, are sometimes individually referred to as the
"Optionee," and (d) the KeyCorp Option or the Society Option, as the case may
be, is sometimes referred to as the "Issuer Option."
 
                                       73
<PAGE>   78
 
     The KeyCorp Option Agreement provides for the purchase by Society of up to
20,229,509 shares (the "KeyCorp Option Shares" or the "Issuer Option Shares," as
the case may be) of KeyCorp Common Stock at an exercise price of $38.50 per
share (the closing price of KeyCorp Common Stock on October 1, 1993), subject to
adjustment as provided therein, payable in cash. The KeyCorp Option Shares, if
issued pursuant to the KeyCorp Option Agreement, would represent approximately
19.9% of the KeyCorp Common Stock issued and outstanding on October 1, 1993,
without giving any effect to the issuance of any KeyCorp Common Stock subject to
the KeyCorp Option.
 
     The Society Option Agreement provides for the purchase by KeyCorp of up to
23,299,888 shares (the "Society Option Shares" or the "Issuer Option Shares," as
the case may be) of Society Common Stock at an exercise price of $32.50 per
share (the closing price of Society Common Stock on October 1, 1993), subject to
adjustment as provided therein, payable in cash. The Society Option Shares, if
issued pursuant to the Society Option Agreement, would represent approximately
19.9% of the Society Common Stock issued and outstanding on October 1, 1993,
without giving any effect to the issuance of any Society Common Stock subject to
the Society Option.
 
     The number of shares of Issuer Common Stock subject to the Issuer Option
will be increased to the extent that additional shares of Issuer Common Stock
are issued or otherwise become outstanding (otherwise than pursuant to an
exercise of the Issuer Option) such that, after such issuance, the number of
Issuer Option Shares continues to equal 19.9% of the Issuer Common Stock then
issued and outstanding without giving any effect to the issuance of any Issuer
Common Stock subject to the Issuer Option. The number of shares of Issuer Common
Stock subject to the Issuer Option, and the applicable exercise price per Issuer
Option Share, also will be appropriately adjusted in the event of any stock
dividends, split-ups, mergers, recapitalizations, combinations, subdivisions,
conversions, exchanges of shares, or the like, relating to Issuer.
 
     Optionee or any other holder or holders of the Issuer Option (as used in
this section, collectively, the "Holder") may exercise the Issuer Option, in
whole or in part, subject to regulatory approval, at any time within 90 days
after both an Initial Triggering Event and a Subsequent Triggering Event (each
as defined herein) shall have occurred prior to termination of the Issuer
Option; provided, that the Holder shall have sent written notice of such
exercise to Issuer within 90 days following such Subsequent Triggering Event
(subject to extension as provided in the Option Agreements). Any exercise of the
Issuer Option will be deemed to occur on the date such notice is sent.
 
     As used in this section, "Initial Triggering Event" means the occurrence of
any of the following events or transactions:
 
          (a) Issuer or any Issuer subsidiary, without having received
     Optionee's prior written consent, enters into an agreement with any person
     or group (other than as contemplated by the Merger Agreement), or the Board
     of Directors of Issuer recommends that shareholders of Issuer approve or
     accept a transaction (other than as contemplated by the Merger Agreement)
     with any person or group (other than as contemplated by the Merger
     Agreement), in either case to (i) merge or consolidate, or enter into any
     similar transaction with Issuer or any "Significant Subsidiary" (as defined
     in Rule 1.02 of Regulation S-X of the SEC) of Issuer, (ii) purchase, lease,
     or otherwise acquire all or substantially all of the assets of Issuer or
     any Significant Subsidiary of Issuer, (iii) purchase or otherwise acquire
     (including by way of merger, consolidation, share exchange, or otherwise)
     securities representing 10% or more of the voting power of Issuer or any
     Significant Subsidiary of Issuer, or (iv) enter into any substantially
     similar transaction (each of the transactions described in the preceding
     clauses (i) through (iv) being herein referred to in this section as an
     "Acquisition Transaction"); or
 
          (b) any person, alone or together with such person's affiliates and
     associates, or any group (other than Optionee, any Optionee subsidiary, any
     Issuer subsidiary in a fiduciary capacity in the ordinary course of
     business, any employee benefit plan, or employee stock ownership plan of
     Issuer or any Issuer subsidiary, or any person organized, appointed, or
     established by Issuer or any Issuer subsidiary pursuant to the terms of any
     such plan, or a group that includes any such party), in the case of any
     such person, acquires beneficial ownership or the right to acquire
     beneficial ownership of 10% or more of the then outstanding shares of
     Issuer Common Stock, or, in the case of any such group which shall have
     been
 
                                       74
<PAGE>   79
 
     formed, acquires beneficial ownership or beneficially owns 10% or more of
     Issuer Common Stock then outstanding; or
 
          (c) any person or group (other than Optionee or any Optionee
     subsidiary) shall have made a bona fide proposal to Issuer or its
     shareholders by public announcement or written communication that is or
     becomes the subject of public announcement to engage in an Acquisition
     Transaction; or
 
          (d) after a proposal is made by a third party to Issuer or its
     shareholders to engage in an Acquisition Transaction, Issuer breaches any
     covenant or agreement in the Merger Agreement and such breach entitles
     Optionee to terminate the Merger Agreement under a specified provision
     thereof (without regard to the cure periods provided for therein, unless
     such cure is promptly effected without jeopardizing consummation of the
     Merger pursuant to the terms of the Merger Agreement) and such breach is
     not cured within 30 days; or
 
          (e) any person (other than Optionee or any Optionee subsidiary), other
     than in connection with a transaction to which Optionee has given its prior
     written consent, files an application or notice with the Federal Reserve
     Board or other federal or state bank regulatory authority, which
     application or notice is accepted for processing, for approval to engage in
     an Acquisition Transaction.
 
     As used in this section, "Subsequent Triggering Event" means the occurrence
of either of the following events or transactions:
 
          (a) the acquisition by any person, alone or together with such
     person's affiliates and associates, or any group (subject to the same
     exclusions as set forth in clause (b) of the preceding paragraph) of
     beneficial ownership of 25% or more of the then outstanding Issuer Common
     Stock, or
 
          (b) the occurrence of the Initial Triggering Event described in clause
     (a) of the preceding paragraph, except that the percentage reference in
     subclause (iii) thereof shall be 25%. The occurrence of an Initial
     Triggering Event and a Subsequent Triggering Event is sometimes referred to
     in this section as a "Triggering Event."
 
     The Issuer Option terminates (a) at the effective time of the Merger, (b)
upon termination of the Merger Agreement in accordance with the terms thereof
prior to the occurrence of an Initial Triggering Event, except when such
termination is by Optionee due to a material, volitional breach by Issuer of the
Merger Agreement, or (c) twelve months after termination of the Merger Agreement
following the occurrence of an Initial Triggering Event or a termination by
Optionee due to a material, volitional breach by Issuer of the Merger Agreement
(provided that if an Initial Triggering Event continues or occurs beyond such
termination of the Merger Agreement, the Issuer Option will terminate twelve
months from the expiration of the last Initial Triggering Event to expire, but
in no event more than 18 months after such termination of the Merger Agreement).
 
     Within 90 days (subject to extension as provided in the Issuer Option
Agreement) after occurrence of a Subsequent Triggering Event that occurs prior
to the termination of the Issuer Option, Optionee (on its own behalf, or on
behalf of any subsequent Holder) may demand that the Issuer Option (or part
thereof) and the related Issuer Option Shares (or part thereof) be registered
under the Securities Act. Upon receipt of such notice, Issuer must promptly
effect such registration, subject to certain exceptions. Optionee will be
entitled to a second such registration if requested within two years of the date
of its first request, if the first request has been timely made.
 
     Upon the occurrence of a Subsequent Triggering Event prior to termination
of the Issuer Option, subject to applicable law and regulatory approval, Issuer
is required (a) at the request of the Holder of the Issuer Option, delivered
within 90 days of such occurrence (subject to extension as provided in the
Issuer Option Agreement), to repurchase the Issuer Option from the Holder
thereof at a price (the "Issuer Option Repurchase Price") equal to the amount by
which (i) the market/offer price (as defined below) exceeds (ii) the then
applicable Issuer Option exercise price, multiplied by the number of shares for
which the Issuer Option may then be exercised; and (b) at the request of the
owner of Issuer Option Shares from time to time (as used in this section, the
"Owner"), delivered within 90 days of such occurrence (subject to extension as
provided in the Option Agreements), to repurchase such number of the Issuer
Option Shares from the Owner
 
                                       75
<PAGE>   80
 
as the Owner designates at a price per share (the "Issuer Option Shares
Repurchase Price") equal to the market/offer price. Both the Issuer Option
Repurchase Price or Issuer Option Share Repurchase Price also would include
Optionee's reasonable out-of-pocket expenses incurred in connection with the
transactions contemplated by the Merger Agreement, including legal, accounting,
and investment banking fees (the "Optionee Expenses"). As used in the Issuer
Option Agreement, the term "market/offer price" means the highest of (x) the
price per share of Issuer Common Stock at which a tender offer or exchange offer
therefor has been made, (y) the price per share of Issuer Common Stock to be
paid by any third party pursuant to an agreement with Issuer, and (z) the
highest closing price for shares of Issuer Common Stock within the six-month
period immediately preceding the date the Holder gives notice of the required
repurchase of the Issuer Option or the Owner gives notice of the required
repurchase of Issuer Option Shares, as the case may be. Notwithstanding the
foregoing, if the same person or group who has participated in a Triggering
Event has entered, or after such Triggering Event enters, into any agreement or
understanding with Optionee relating to Optionee's rights under the Issuer
Option or with respect to the Issuer Option Shares or directly or indirectly
relating to Issuer, Optionee is required, at any time notwithstanding such
agreement or understanding, upon the occurrence of a Subsequent Triggering Event
of the type described in clause (a) of the sixth full paragraph of this section,
without Issuer's approval, recommendation, or consent, promptly to request that
Issuer repurchase the Issuer Option and any Issuer Option Shares held by
Optionee as provided in the Issuer Option Agreement and Issuer must do so.
However, if Issuer at any time after delivery of a notice of repurchase as
described in this paragraph is prohibited under applicable law or regulation, or
as a consequence of administrative policy, from delivering to the Holder and/or
the Owner, as appropriate, the Issuer Option Repurchase Price and the Issuer
Option Share Repurchase Price, respectively, in full, the Holder or Owner may
revoke its notice of repurchase of the Issuer Option or the Issuer Option
Shares, whereupon Issuer shall promptly (a) deliver to the Holder a new Issuer
Stock Option Agreement evidencing the right of the Holder to purchase that
number of shares of the Issuer Common Stock obtained by multiplying the number
of shares of the Issuer Common Stock for which the surrendered Issuer Option
Agreement was exercisable at the time of delivery of the notice of repurchase by
a fraction, the numerator of which is the Issuer Option Repurchase Price less
the portion thereof theretofore delivered to the Holder and the denominator of
which is the Issuer Option Repurchase Price, and (b) deliver to the Owner a
certificate for the Issuer Option Shares it is then so prohibited from
repurchasing, and Issuer shall have no further obligation to purchase such
Issuer Option or Issuer Option Shares.
 
     In the event that prior to termination of the Issuer Option, Issuer enters
into an agreement (a) to consolidate with or merge into any entity other than
Optionee or one of its subsidiaries and shall not be the continuing or surviving
corporation of such consolidation or merger, (b) to permit any person other than
Optionee or one of its subsidiaries to merge into Issuer with Issuer as the
continuing or surviving corporation, but, in connection therewith, the then
outstanding shares of Issuer Common Stock are changed into or exchanged for
securities of any other person or cash or any other property or the then
outstanding shares of Issuer Common Stock after such merger represent less than
50% of the outstanding shares and share equivalents of the merged company, or
(c) to sell or otherwise transfer all or substantially all of its assets to any
person other than Optionee or one of its subsidiaries, then, and in each such
case, the Issuer Option will, upon consummation of any such transaction, be
converted into, or exchanged for, an option (as used in this section, a
"Substitute Option") to purchase shares of common stock of, at the Holder's
option, (i) the continuing or surviving corporation of a merger or a
consolidation, (ii) the transferee of all or substantially all of Issuer's
assets, or the person controlling such continuing or surviving corporation or
transferee, or (iii) in certain cases, Issuer. The number of shares subject to
the Substitute Option, and the exercise price per share, will be determined in
accordance with a formula set forth in the Option Agreements. The Substitute
Option will contain such other terms and conditions having, to the extent
possible, the same terms and conditions as the Issuer Option.
 
     At the request of the holder of the Substitute Option, the issuer of a
Substitute Option will, subject to regulatory approval, be required to
repurchase such Substitute Option and will, subject to regulatory approval, be
required to repurchase any shares of such issuer's common stock (as used in this
section, the "Substitute Common Stock") issued upon exercise of a Substitute
Option (as used in this section, the "Substitute Shares"), at the request of the
owner thereof. The repurchase price for the Substitute Option (as used in this
section, the "Substitute Option Repurchase Price") will equal the amount by
which (a) the Highest Closing
 
                                       76
<PAGE>   81
 
Price (as defined herein) plus the Optionee Expenses exceeds (b) the exercise
price of the Substitute Option, multiplied by the number of shares of Substitute
Common Stock for which the Substitute Option may be exercised. The repurchase
price per share for Substitute Shares (as used in this section, the "Substitute
Share Repurchase Price") will equal the sum of the Highest Closing Price plus
the Optionee Expenses. As used in the Issuer Option Agreements, "Highest Closing
Price" means the highest closing price for shares of Substitute Common Stock
within the six-month period immediately preceding the date the Substitute Option
Holder gives notice of the required repurchase of the Substitute Option or the
owner gives notice of the required repurchase of Substitute Shares, as the case
may be. However, if issuer of the Substitute Option is at any time after
delivery of a notice of repurchase as described in this paragraph prohibited
under applicable law or regulation, or as a consequence of administrative
policy, from delivering to the Substitute Option Holder and/or the Substitute
Share Owner, as appropriate, the Substitute Option Repurchase Price and the
Substitute Share Repurchase Price, respectively, in full, the Substitute Option
Holder or Substitute Share Owner may revoke its notice of repurchase of the
Substitute Option or the Substitute Shares, whereupon the issuer of the
Substitute Option shall promptly (i) deliver to the Substitute Option Holder a
new Substitute Option evidencing the right of the Substitute Option Holder to
purchase that number of shares of the Substitute Common Stock obtained by
multiplying the number of shares of the Substitute Common Stock for which the
surrendered Substitute Option was exercisable at the time of delivery of the
notice of repurchase by a fraction, the numerator of which is the Substitute
Option Repurchase Price less the portion thereof theretofore delivered to the
Substitute Option Holder and the denominator of which is the Substitute Option
Repurchase Price, and (ii) deliver to the Substitute Share Owner a certificate
for the Substitute Shares it is then so prohibited from repurchasing and the
issuer of the Substitute Option shall have no further obligation to purchase
such Substitute Option or Substitute Shares.
 
     Neither Issuer nor Optionee may assign any of its respective rights and
obligations under the Issuer Option Agreements or the Issuer Option to any other
person without the express written consent of the other party, except that if a
Subsequent Triggering Event occurs prior to termination of the Issuer Option,
Optionee, subject to the terms of the Issuer Option Agreement, may assign in
whole or in part its rights and obligations thereunder, within 90 days (subject
to extension as provided in the Option Agreement) of such Subsequent Triggering
Event. In addition, until the date 30 days after the date on which the Federal
Reserve Board approves an application by Optionee to acquire the Issuer Option
Shares, Optionee may not assign its rights under the Issuer Option except in (a)
a widely dispersed public distribution, (b) a private placement in which no one
party acquires the right to purchase in excess of 2% of the voting shares of
Issuer, (c) an assignment to a single party for the purpose of conducting a
widely dispersed public distribution on Optionee's behalf, or (d) any other
manner approved by the Federal Reserve Board.
 
     The rights and obligations of Issuer and Optionee under the Option
Agreements are subject to receipt of any required regulatory approvals. Without
the prior approval of the Federal Reserve Board, Optionee may not acquire more
than 5% of the outstanding Issuer Common Stock. Each of KeyCorp and Society, as
the respective Optionees, intends to file an application for such approval as
soon as practicable. See "CERTAIN REGULATORY CONSIDERATIONS -- Control
Acquisitions."
 
     Notwithstanding anything in the Society Option Agreement, the sum of (i)
the number of shares of Society Common Stock to be purchased from time to time
upon exercise of the Society Option plus (ii) the number of shares of Society
Common Stock in respect of which KeyCorp may, directly or indirectly, alone or
with others, exercise or direct the exercise of voting power in the election of
directors will not exceed 19.9% of the Society Common Stock issued and
outstanding at the time the Society Option is exercised; provided that, KeyCorp
will not be deemed for this purpose to have voting power with respect to Society
Common Stock held by a subsidiary of KeyCorp that is a bank, broker, nominee, or
trustee who acquires shares in the ordinary course of business for the benefit
of others in good faith and not for the purpose of circumventing Section
1701.831 of the Ohio General Corporation Law unless such KeyCorp subsidiary is
able, without further instructions from others, to exercise or direct the
exercise of the votes on a proposed control share acquisition at a meeting of
shareholders called under Section 1701.831 of the Ohio General Corporation Law.
In the event that the Society Option would otherwise be exercisable for more
than 19.9% of the aggregate of the shares of the Society Common Stock but for
this paragraph, Society will, at the time the Society Option is exercised, make
a cash payment to KeyCorp equal to the excess of (i) the value of the Society
Option without
 
                                       77
<PAGE>   82
 
giving effect to this limitation in the first sentence of this paragraph over
(ii) the value of the Society Option after giving effect to this limitation in
the first sentence of this paragraph. This difference in value will be
determined by a nationally-recognized investment banking firm selected by
KeyCorp.
 
THE KEYCORP RIGHTS AGREEMENT
 
     Concurrently with the execution of the Merger Agreement, KeyCorp and the
KeyCorp Rights Agent entered into the KeyCorp Rights Agreement, pursuant to
which holders of KeyCorp Common Stock received a dividend of the KeyCorp Rights
which shall be, upon the occurrence of certain events, exercisable for or
convertible into other securities of KeyCorp or of other corporations or
entities. The KeyCorp Rights Agreement also provides that Society and its
affiliates or associates will not become "Acquiring Persons," and that no
"Flip-in Date," "Flip-over Transaction or Event," "Separation Time," or "Stock
Acquisition Date" (as those terms are defined in the KeyCorp Rights Agreement)
will occur, by reason of the Merger Agreement or the KeyCorp Option Agreement so
long as neither Society nor any of its subsidiaries becomes the beneficial owner
of any shares of KeyCorp Common Stock other than (a) pursuant to the KeyCorp
Option Agreement or the Merger Agreement, (b) shares of KeyCorp Common Stock (or
securities convertible into, exchangeable into, or exercisable for KeyCorp
Common Stock), beneficially owned by Society or its "affiliates" or "associates"
(as such terms are defined in the KeyCorp Rights Agreement) on October 1, 1993,
(c) shares of KeyCorp Common Stock (or securities convertible into, exchangeable
into, or exercisable for KeyCorp Common Stock) acquired by affiliates or
associates of Society after the time of such grant which, in the aggregate,
amount to less than 1% of the outstanding shares of KeyCorp Common Stock, or (d)
shares of KeyCorp Common Stock (or securities convertible into, exchangeable
into, or exercisable for KeyCorp Common Stock) which are held by Society or any
of its subsidiaries in trust accounts, managed accounts, and the like or
otherwise held in a fiduciary capacity or in respect of a debt previously
contracted, in all cases in the ordinary course of its banking or trust
business. The KeyCorp Rights Agreement also provides for its termination when
the Merger becomes effective. See "COMPARISON OF CERTAIN RIGHTS OF HOLDERS OF
CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY -- Shareholder Rights Plans."
 
THE THIRD AMENDMENT TO THE SOCIETY RIGHTS AGREEMENT
 
     Concurrently with the execution of the Merger Agreement, Society and the
Society Rights Agent entered into the Society Rights Agreement Amendment. The
Society Rights Agreement Amendment amends the Society Rights Agreement to
provide that, for purposes of the definition of "Acquiring Person" and of the
"flip-in" provision of the Society Rights Agreement, neither KeyCorp nor any of
its "affiliates" or "associates" (as such terms are defined in the Society
Rights Agreement) will be deemed to be the beneficial owner of Society Common
Stock by reason of the Merger Agreement or the Society Option Agreement so long
as neither KeyCorp nor any of its subsidiaries becomes the beneficial owner of
any Society Common Stock other than (a) pursuant to the Merger Agreement or the
Society Option Agreement, (b) shares beneficially owned by KeyCorp or any of its
subsidiaries on October 1, 1993, or shares acquired after October 1, 1993 by an
affiliate or associate of KeyCorp (other than a subsidiary of KeyCorp), (c)
Society Common Stock of which KeyCorp or any of its subsidiaries inadvertently
becomes the beneficial owner after October 1, 1993, provided the number of such
shares does not exceed  1/2% of the Society Common Stock then outstanding and
that KeyCorp or its subsidiary divests such shares as soon as practicable after
it learns about such beneficial ownership, or (d) Society Common Stock
beneficially owned or otherwise held by KeyCorp or any of its subsidiaries in
trust accounts or otherwise acquired in the ordinary course of their banking and
trust business. The Society Rights Agreement Amendment also provides that no
"Distribution Date," "Flip-in Event," "Flip-over Event," "Shares Acquisition
Date," or "Triggering Event" (as those terms are defined in the Society Rights
Agreement) will occur solely by reason of the Merger Agreement or the Society
Option Agreement, provided KeyCorp and its subsidiaries do not become the
beneficial owners of any Society Common Stock other than those permitted in the
definition of "Acquiring Person." See "COMPARISON OF CERTAIN RIGHTS OF HOLDERS
OF CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY -- Shareholder Rights Plans."
 
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RESALES OF NEW KEY CAPITAL STOCK RECEIVED IN THE MERGER
 
     The New Key Common Stock and the New Key Depositary Shares each
representing a one-fifth interest in one share of New Key Preferred Stock that
will be issued if the Merger is consummated will have been registered under the
Securities Act and will be freely transferable, except for shares received by
persons, including directors and executive officers of KeyCorp and Society, who
may be deemed to be "affiliates" of KeyCorp and Society, as that term is used in
(i) paragraphs (c) and (d) of Rule 145 under the Securities Act, and/or (ii)
Accounting Series Releases 130 and 135, as amended, of the SEC. Affiliates may
not sell their shares of New Key Common Stock or their New Key Depositary Shares
acquired pursuant to the Merger, except (a) pursuant to an effective
registration statement under the Securities Act covering those shares, (b) in
compliance with Rule 145, or (c) in the opinion of counsel reasonably
satisfactory to New Key, pursuant to another applicable exemption from the
registration requirements of the Securities Act. SEC guidelines further indicate
that the pooling of interests method of accounting will generally not be
challenged on the basis of sales by affiliates of the acquiring or acquired
company if such affiliates do not dispose of any of the shares of the acquiring
or acquired company they owned prior to the consummation of a merger or shares
of the acquiring corporation they receive in connection with a merger during the
period beginning 30 days before the merger and ending when financial results
covering at least 30 days of post-merger operations of the combined entity have
been published. Society and KeyCorp intend to obtain customary agreements with
all directors, officers, and affiliates of KeyCorp and Society under which those
persons would represent that they will not dispose of their shares of New Key
capital stock received in the Merger or the shares of capital stock of KeyCorp
or Society held by them prior to the Merger, except in compliance with the
Securities Act and the rules and regulations promulgated thereunder, and in a
manner that would not adversely affect the ability of New Key to treat the
Merger as a pooling of interests for financial reporting purposes. This
Prospectus/Joint Proxy Statement does not cover any resales of New Key Common
Stock or New Key Depositary Shares each representing a one-fifth interest in one
share of New Key Preferred Stock received by affiliates of KeyCorp or Society.
Forms of the agreements of the affiliates of KeyCorp and Society are set forth
as Exhibits V(A) and V(B), respectively, to the Supplemental Agreement, which is
attached hereto as Appendix II.
 
                              BUSINESS OF KEYCORP
 
OVERVIEW
 
     KeyCorp is a multi-regional financial services holding company
headquartered in Albany, New York. Incorporated in 1970 under the laws of the
State of New York as First Commercial Banks Inc., KeyCorp is registered under
the BHCA. At September 30, 1993, based on data from the American Banker
publication, KeyCorp was the 25th largest bank holding company in the United
States in terms of total consolidated assets of approximately $32.4 billion at
that date. KeyCorp is comprised of full-service commercial banks and related
financial service companies. KeyCorp provides banking services to individual
customers, small-to medium-sized businesses, and municipalities. The oldest bank
subsidiary of KeyCorp was organized in 1825. In addition, through its
specialized financial service subsidiaries, KeyCorp offers mortgage banking,
insurance, brokerage, and trust services. At September 30, 1993, KeyCorp's
banking subsidiaries operated over 800 banking offices in the States of Alaska,
Colorado, Idaho, Maine, New York, Oregon, Utah, Washington, and Wyoming. In
addition, at September 30, 1993, KeyCorp and its subsidiaries had approximately
17,800 full-time equivalent employees.
 
SUBSIDIARIES
 
     KeyCorp's commercial banks, all operating under the Key Bank name, serve
markets throughout the country's Northern tier.
 
     In the East, banking operations are conducted through Key Bank of New York
and Key Bank of Maine. Key Bank of New York had total assets of $14.0 billion at
September 30, 1993, and operated 339 banking offices. Key Bank of Maine had
total assets of $2.5 billion at September 30, 1993, and operated 96 banking
offices.
 
     In the Rocky Mountain states, banking operations are conducted through the
Key Banks of Colorado, Idaho, Utah and Wyoming. Key Bank of Idaho had total
assets of $1.2 billion at September 30, 1993, and
 
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operated 44 banking offices. As of September 30, 1993, Key Bank of Colorado had
total assets of $.2 billion and operated 4 banking offices. Key Bank of Utah had
total assets of $1.2 billion at September 30, 1993, and operated 36 banking
offices. At September 30, 1993, Key Bank of Wyoming had total assets of $1.3
billion and operated 27 banking offices.
 
     The Key Banks of Alaska, Oregon, and Washington conduct KeyCorp's banking
operations in the Pacific Northwest. Key Bank of Alaska had total assets of $.9
billion at September 30, 1993, and operated 20 banking offices. At September 30,
1993, Key Bank of Oregon had total assets of $1.9 billion and operated 72
banking offices. Key Bank of Washington had total assets of $6.8 billion at
September 30, 1993, and operated 191 banking offices. In addition, banking
operations in Washington are also conducted through Key Savings Bank, a state
chartered savings bank with its primary regulator being the Federal Deposit
Insurance Corporation. At September 30, 1993, Key Savings Bank had total assets
of $1.4 billion and operated 191 banking offices which are all under dual
charter with Key Bank of Washington.
 
     A unique banking subsidiary based in Albany, New York, Key Bank USA, N.A.
("Key Bank U.S.A."), is KeyCorp's national bank subsidiary. With total assets of
$.6 billion at September 30, 1993, Key Bank U.S.A. provides banking services by
mail to customers nationwide -- primarily gathering deposits from areas not
served by any other Key Bank.
 
     Through its bank and nonbank subsidiaries, KeyCorp offers a variety of
traditional banking services as well as personal and commercial financial
services. Such services include checking, savings, and money market deposit
accounts; NOW accounts; fixed and variable rates certificates of deposit;
demand, time, and installment loans; credit cards; equipment leasing; first and
second mortgage loans, including home equity loans; cash management services,
corporate, and personal fiduciary services; discount brokerage services; and
credit life reinsurance.
 
     KeyCorp Mortgage Inc., KeyCorp's primary mortgage banking subsidiary,
serviced a $22.0 billion portfolio of mortgage loans as of September 30, 1993,
making it one of the largest mortgage servicing companies in the country.
KeyCorp's other specialized financial service companies provide such services as
trust, credit life reinsurance, equipment leasing, securities brokerage, annuity
sales, asset management, and data processing.
 
     As with other New York domiciled bank holding companies, KeyCorp is subject
to regulation by the New York State Banking Department and the Federal Reserve
Board. Each of KeyCorp's subsidiary banks is a member of the Federal Deposit
Insurance Corporation and is also subject to regulation by the banking
authorities of the state in which it is located.
 
     Investments in its operating subsidiaries are KeyCorp's principal asset and
sources of income. Dividends from bank subsidiaries constitute KeyCorp's
principal source of funds. Various Federal and state laws limit the extent to
which KeyCorp's bank subsidiaries may pay dividends. Similarly, the Federal
Reserve Act imposes limitations on a subsidiary bank's ability to extend credit
to, invest in, and certain other transactions with KeyCorp and its other
subsidiaries. See "CERTAIN REGULATORY CONSIDERATIONS."
 
PENDING ACQUISITIONS
 
     None of the pending acquisitions of KeyCorp described below will, either
individually or in the aggregate, have a material impact on the consolidated
financial condition or results of operations of KeyCorp and its subsidiaries.
The effects of the following acquisitions are not included in information
presented in the tables under the heading "UNAUDITED PRO FORMA CONDENSED
COMBINED FINANCIAL STATEMENTS" in this Prospectus/Joint Proxy Statement but
certain information about Jackson Bank, Commercial Bancorporation and Greeley
Bank (each as defined herein) is set forth in footnote (4) under the heading
"NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS."
 
     Jackson County Federal Bank, F.S.B.  On June 22, 1993, KeyCorp entered into
an agreement to acquire Jackson County Federal Bank, F.S.B., a federal stock
savings bank headquartered in Medford, Oregon ("Jackson Bank"). Under the terms
of the agreement, all shares of Jackson Bank common stock and preferred stock
will be exchanged for up to approximately 1.6 million shares of KeyCorp Common
Stock. At
 
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September 30, 1993, Jackson Bank, which has eight branch offices in Oregon, had
approximately $351 million in assets. Consummation of the Jackson Bank
acquisition is subject to regulatory and Jackson Bank stockholder approval. The
acquisition is expected to be completed on or before December 31, 1993.
 
     Commercial Bancorporation of Colorado.  On September 11, 1993, KeyCorp
entered into an agreement to acquire Commercial Bancorporation of Colorado,
headquartered in Denver, Colorado ("Commercial Bancorporation"). Under the terms
of the agreement, all of the shares of Commercial Bancorporation stock will be
exchanged for approximately 2.4 million shares of KeyCorp Common Stock. At
September 30, 1993, Commercial Bancorporation, through its five bank
subsidiaries, operated 11 branches in the Denver, Colorado Springs, Sterling and
Fort Collins areas of Colorado, and had approximately $374 million in assets.
Consummation of the Commercial Bancorporation acquisition is subject to
regulatory and Commercial Bancorporation shareholder approval. The acquisition
is expected to be completed during the first six months of 1994.
 
     The Bank of Greeley.  On October 5, 1993, KeyCorp entered into an agreement
to acquire the Bank of Greeley, a single-branch Colorado state-chartered bank,
headquartered in Greeley, Colorado ("Greeley Bank"). Under the terms of the
agreement, all shares of Greeley Bank common stock will be exchanged for
approximately 200,000 shares of KeyCorp Common Stock. At September 30, 1993,
Greeley Bank had approximately $60.9 million in assets. Consummation of the
Greeley Bank acquisition is subject to regulatory and Greeley Bank shareholder
approval. The acquisition is expected to be completed during the first six
months of 1994.
 
                              BUSINESS OF SOCIETY
 
OVERVIEW
 
     Society, a financial services holding company organized in 1958, is
headquartered in Cleveland, Ohio, is incorporated in Ohio, and is registered
under the BHCA and the Home Owners Loan Act of 1933, as amended ("HOLA"). It is
principally a regional banking organization and provides a wide range of
banking, fiduciary, and other financial services to corporate, institutional,
and individual customers. At September 30, 1993, Society had total consolidated
assets of approximately $25.8 billion, making it the 29th largest bank holding
company in the United States, in terms of total consolidated assets and based on
data from the American Banker publication. The first predecessor of a subsidiary
of Society was organized in 1849. At September 30, 1993, Society's subsidiary
banks operated 440 full-service banking offices in the States of Ohio, Indiana,
Michigan, and Florida. At September 30, 1993, Society and its subsidiaries had
approximately 12,700 full-time equivalent employees.
 
SUBSIDIARIES
 
     Banking operations in Ohio are conducted through Society National Bank, a
federally-chartered bank headquartered in Cleveland, Ohio, the largest bank in
Ohio and one of the nation's major regional banks. At September 30, 1993,
Society National Bank had total assets of $20.7 billion and operated 294
full-service banking offices.
 
     Banking operations in Indiana are conducted through Society National Bank,
Indiana, a federally-chartered bank headquartered in South Bend, Indiana. At
September 30, 1993, Society National Bank, Indiana had total assets of $3.0
billion and operated 86 full-service banking offices.
 
     Banking operations in Michigan are conducted through Society Bank,
Michigan, a state-chartered bank headquartered in Ann Arbor, Michigan. At
September 30, 1993, Society Bank, Michigan had assets of $1.0 billion and
operated 36 full-service banking offices.
 
     Banking operations in Florida are conducted through Society First Federal
Savings Association of Fort Myers, a federal savings bank association
headquartered in Fort Myers, Florida ("Society First Federal"). At September 30,
1993, Society First Federal had assets of $1.2 billion and operated 24
full-service banking offices.
 
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     In addition to the customary banking services of accepting funds for
deposit and making loans, Society's subsidiary banks provide a wide range of
specialized services tailored to specific markets, including investment
management, personal and corporate trust services, personal financial services,
cash management services, investment banking services, and international banking
services. At September 30, 1993, Society had one of the nation's largest trust
departments with approximately $25 billion in managed assets.
 
     Society's nonbanking subsidiaries provide insurance sales services,
reinsurance of credit life and accident and health insurance on loans made by
subsidiary banks, securities brokerage services, investment management,
corporate and personal trust services, venture capital and small business
investment financing services, equipment lease financing, registered investment
advisory services, mortgage banking services, community development services,
and other financial services.
 
     Society is a legal entity separate and distinct from its subsidiaries. The
principal source of Society's income is the earnings of subsidiary banks, and
the principal source of its cash flow is dividends from its subsidiary banks.
Applicable state and Federal laws impose limitations on the ability of Society's
banking subsidiaries to pay dividends. In addition, the subsidiary banks are
subject to the limitations contained in the Federal Reserve Act regarding
extensions of credit to, investments in, and certain other transactions with
Society and its other subsidiaries. See "CERTAIN REGULATORY CONSIDERATIONS."
 
                INTEGRATION OF KEYCORP AND SOCIETY INTO NEW KEY
 
INTEGRATION MANAGEMENT TEAM
 
     In connection with the Merger, KeyCorp and Society have formed a joint
Integration Management Team under the chairmanship of Stephen E. Wall, an
Executive Vice President of Society, and consisting of an equal number of senior
management representatives from each company. One of the objectives of the
Integration Management Team is to review and analyze the historical operations
of KeyCorp and Society and, in light of this analysis, to begin to develop plans
for the combined strategies and operations of New Key.
 
     The Integration Management Team has assigned representatives of the senior
level management of each of KeyCorp and Society to integration groups (general
administration, credit policy, finance, investment management and services,
information technology and operations, and banking) and has organized a series
of task forces to assist each group. These task forces are in the process of
reviewing the methods by which KeyCorp and Society currently perform certain
business and operational functions, determining the strategy pursuant to which
New Key will best perform those functions after the Merger, and identifying the
appropriate individuals to manage those activities. Included among the business
and operational functions being reviewed by the task forces are information
services, customer support, asset management, commercial lending, consumer
credit, retail banking, and credit policy.
 
CERTAIN BUSINESS STRATEGIES UNDER CONSIDERATION
 
     The following information summarizes the considerations given to date to
certain business strategies by the Integration Management Team; because,
however, the Integration Management Team is at a relatively early stage of
carrying out its assignment, no assurance can be given that any of the operating
strategies as described below will not be significantly revised prior to or
after the Effective Time by the Integration Management Team, the senior
management, or the Board of Directors of KeyCorp and Society or (after the
Effective Time) of New Key to reflect changing business, regulatory, or other
conditions.
 
     Product Development.  KeyCorp and Society currently anticipate that
financial services products presently offered by each company will be made more
widely available to consumers throughout the New Key combined branch network and
banking system. Though the specific KeyCorp and Society products which will be
introduced into markets serviced by the combined distribution network have not
yet been determined, KeyCorp and Society have undertaken a review of their
respective product lines and have identified certain financial products and
services for which each has significant market position or particular expertise.
KeyCorp, for example, has a strong mortgage banking business and specializes in
the delivery of services to small-and medium-sized businesses in local
communities. Society has a strong trust and asset management services
 
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business and specializes in developing and delivering products to the large
corporate and various specialized industry markets. KeyCorp and Society
currently anticipate that KeyCorp's large banking distribution network with over
800 banking offices throughout nine states and 459 communities and the Society
distribution network of over 400 banking offices in four states will provide
significant new distribution networks for these product lines and services.
 
     Three Market Centers have been established for New Key's primary markets:
commerical, trust, and consumer. These Market Centers will provide strategic
direction, facilitate product development, and give specialized expertise and
analytical support services to the lines of business.
 
     Investment Strategy.  Material changes in the major operating policies
relating to the investment strategy of New Key, as compared to the policies of
KeyCorp and Society in this area, are not presently anticipated. The management
of financial market risk by New Key will continue the practice of both KeyCorp
and Society to focus on interest rate risk, liquidity, and capital leverage. The
management and analysis of these components of financial risk will be centrally
controlled, as is the current practice with both companies, but each affiliate
bank subsidiary of New Key will be responsible for its own loan and deposit
pricing decisions. As a much larger and more geographically dispersed
organization than either KeyCorp or Society, New Key may make changes in
policies and procedures to take into account the size and scope of a combined
entity that has subsidiary banks operating in several different geographic
regions.
 
     Loan Portfolio Diversification.  As a result of the Merger, New Key will
have a more geographically diversified loan portfolio located in KeyCorp's
lending markets including the Rocky Mountain region, the Pacific Northwest, and
the Northeast, in addition to loans in Society's lending markets, including the
Midwest and Florida. KeyCorp and Society anticipate that New Key will continue
to market diversified credit products through the combined geographically
diverse branch network and banking system, with efforts to introduce certain
unique credit products of each institution into markets previously served by the
other institution's banking distribution network.
 
     As described under the heading "TERMS OF THE MERGER -- Interests of Certain
Persons in the Merger -- General -- Management After the Merger," KeyCorp and
Society have designated the individuals listed under that heading who will have
the respective executive and senior management responsibilities at New Key,
including the responsibility for executing such plans as are finally developed
for integrating KeyCorp and Society into New Key and carrying out New Key's
combined business strategies and operations.
 
                       CERTAIN REGULATORY CONSIDERATIONS
 
GENERAL
 
     As bank holding companies, Society and KeyCorp are, and New Key will be,
subject to supervision by the Federal Reserve Board. As a result of the 1993
acquisition by Society of Society First Federal, Society is, and New Key will
be, subject to supervision by the Office of Thrift Supervision (the "OTS") as a
savings and loan holding company registered under HOLA. The banking and savings
association subsidiaries (collectively, "banking subsidiaries") of KeyCorp and
Society are subject to extensive supervision, examination and regulation by
applicable federal and state banking agencies, including the Office of the
Comptroller of the Currency ( the "OCC") in the case of national bank
subsidiaries and the OTS in the case of Society First Federal. Each of the
banking subsidiaries is insured by, and therefore also subject to the
regulations of, the Federal Deposit Insurance Corporation (the "FDIC").
Depository institutions such as the banking subsidiaries are affected
significantly by the actions of the Federal Reserve Board as it attempts to
control the money supply and credit availability in order to influence the
economy. The discussion in this section of regulatory considerations affecting
New Key and its subsidiaries is also generally applicable, prior to the
Effective Time of the Merger, to KeyCorp, Society, and, where appropriate, to
their respective subsidiaries. The regulatory regime applicable to bank holding
companies and their subsidiaries generally is not intended for the protection of
investors and is directed toward protecting the interests of depositors, the
FDIC deposit insurance funds, and the U.S. banking system as a whole.
 
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     New Key's nonbanking subsidiaries will be subject to supervision and
examination by the Federal Reserve Board, as well as other applicable regulatory
agencies. For example, discount brokerage subsidiaries are subject to
supervision and regulation by the SEC, the National Association of Securities
Dealers, Inc., and state securities regulators. New Key's insurance subsidiaries
will be subject to regulation by the insurance regulatory authorities of their
various states. Other nonbanking subsidiaries are subject to other laws and
regulations of both the federal government and the various states in which they
are authorized to do business.
 
     The following references to certain statutes and regulations are brief
summaries thereof. The references are not intended to be complete and are
qualified in their entirety by reference to the statutes and regulations. In
addition, there are other statutes and regulations that apply to and regulate
the operation of banking institutions. A change in applicable law or regulation
may have a material effect on the business of New Key.
 
DIVIDEND RESTRICTIONS
 
     Various federal and state statutory provisions, which currently limit the
amount of dividends paid to Society and KeyCorp by their respective banking
subsidiaries, will also limit the amount of dividends the banking subsidiaries
are permitted to pay to New Key without regulatory approval. The approval of the
OCC is required for any dividend by a national bank if the total of all
dividends declared by the bank in any calendar year would exceed the total of
its net profits (as defined by the OCC) for that year combined with its retained
net profits for the preceding two years less any required transfers to surplus
or a fund for the retirement of any preferred stock. In addition, a national
bank is not permitted to pay a dividend in an amount greater than its net
profits then on hand (as defined by the OCC) after deducting its losses and bad
debts. For this purpose, bad debts are defined to include, generally, loans
which have matured as to which interest is overdue by six months or more, other
than such loans which are well secured and in the process of collection.
Society's banking subsidiaries other than Society Bank, Michigan and Society
First Federal, are national banks. Key Bank U.S.A., N.A. and Key Trust Company
of Florida, N.A., both wholly-owned subsidiaries of KeyCorp, are also national
banks.
 
     OTS regulations impose limitations upon capital distributions by savings
associations. Society First Federal is Society's, and will be New Key's, only
savings association subsidiary. State banks that are not members of the Federal
Reserve System ("nonmember banks") are subject to varying restrictions on the
payment of dividends under state laws. All of KeyCorp's banking subsidiaries
other than Key Bank USA, N.A. and Key Trust Company of Florida, N.A., are state
nonmember banks and Society Bank, Michigan is a state nonmember bank.
 
     Under these restrictions, as of September 30, 1993, Society's banking
subsidiaries could have declared dividends of approximately $52.0 million in the
aggregate, without obtaining prior regulatory approval, and KeyCorp's banking
subsidiaries could have declared dividends of approximately $540 million in the
aggregate, without obtaining prior regulatory approval. The payment of dividends
by any banking subsidiary may also be affected by other factors, such as the
requirement that each such subsidiary maintain adequate capital.
 
     If, in the opinion of the applicable federal banking agency, a depositary
institution under its jurisdiction is engaged in or is about to engage in an
unsafe or unsound practice (which, depending on the financial condition of the
institution, could include the payment of dividends), the agency may require,
after notice and hearing, that such institution cease and desist from such
practice. In addition, the Federal Reserve Board, the OCC, and the FDIC have
issued policy statements which provide that insured banks and bank holding
companies should generally only pay dividends out of current operating earnings.
 
HOLDING COMPANY STRUCTURE
 
     Transactions Involving Banking Subsidiaries.  Transactions involving New
Key's banking subsidiaries will be subject to restrictions under federal law
which limit the transfer of funds from such subsidiaries to New Key and (with
certain exceptions) its nonbanking subsidiaries in "covered transactions" such
as loans, extensions of credit, investments, or asset purchases. Each such
transfer by a banking subsidiary to either New Key or any nonbanking subsidiary
is limited in amount to 10% of that banking subsidiary's capital and surplus
and, with respect to all such transfers to New Key and all New Key's nonbanking
subsidiaries in the aggregate, to 20% of that banking subsidiary's capital and
surplus. Furthermore, loans and extensions of credit are
 
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required to be secured in specified amounts. "Covered transactions" also include
the acceptance of securities issued by the banking subsidiary as collateral for
a loan and the issuance of a guarantee, acceptance, or letter of credit for the
benefit of New Key or its nonbanking subsidiaries. In addition, a bank holding
company and its banking subsidiaries are prohibited from engaging in certain
tie-in arrangements in connection with any extension of credit, lease or sale of
property, or furnishing of services.
 
     Bank Holding Company Support of Banking Subsidiaries.  Under Federal
Reserve Board policy, a bank holding company is expected to act as a source of
financial and managerial strength to each of its subsidiary banks and to commit
resources to support each such subsidiary bank. This support may be required by
the Federal Reserve Board at times when New Key may not have the resources to
provide it or, for other reasons, would not otherwise be inclined to provide it.
Any capital loans by New Key to any of the subsidiary banks are subordinate in
right of payment to deposits and to certain other indebtedness of a subsidiary
bank. In addition, the Crime Control Act of 1990 provides that in the event of a
bank holding company's bankruptcy, any commitment by the bank holding company to
a federal bank regulatory agency to maintain the capital of a subsidiary bank
will be assumed by the bankruptcy trustee and entitled to a priority of payment.
 
     A depository institution the deposits of which are insured by the FDIC can
be held liable for any loss incurred by, or reasonably expected to be incurred
by, the FDIC in connection with (i) the default of a commonly controlled
FDIC-insured depository institution or (ii) any assistance provided by the FDIC
to a commonly controlled FDIC-insured depository institution in danger of
default (the so-called "cross guaranty" provision). "Default" is defined under
the FDIC's regulations generally as the appointment of a conservator or receiver
and "in danger of default" is defined generally as the existence of certain
conditions indicating that a "default" is likely to occur in the absence of
regulatory assistance.
 
CAPITAL REQUIREMENTS
 
     The minimum ratio of total capital to risk-adjusted assets (including
certain off-balance sheet items, such as stand-by letters of credit) required by
the Federal Reserve Board for bank holding companies is 8%. At least one-half of
the total capital must be comprised of common equity, retained earnings,
qualifying noncumulative perpetual preferred stock, a limited amount of
qualifying cumulative perpetual preferred stock, and minority interests in the
equity accounts of consolidated subsidiaries, less goodwill and certain other
intangible assets ("Tier 1 capital"). The remainder may consist of hybrid
capital instruments, perpetual debt, mandatorily convertible debt securities, a
limited amount of subordinated debt, other preferred stock, and a limited amount
of loan and lease loss reserves ("Tier 2 capital"). The Federal Reserve Board
has stated that banking organizations generally, and particularly those that
actively make acquisitions, are expected to operate well above the minimum
risk-based capital ratios. As of September 30, 1993, KeyCorp's Tier 1 and total
capital to risk-adjusted assets ratios were 8.68% and 11.49%, Society's Tier 1
and total capital to risk-adjusted assets ratios were 8.71% and 12.99%,
respectively, and, on a pro forma basis, New Key's Tier 1 and total capital to
risk-adjusted assets ratios would have been 8.69% and 12.21%.
 
     In addition, New Key will be subject to minimum leverage ratio (Tier 1
capital to average total assets for the relevant period) guidelines. These
guidelines provide for a minimum leverage ratio of 3% for bank holding companies
that meet certain specified criteria, including that they have the highest
supervisory rating. All other bank holding companies are required to maintain a
leverage ratio which is at least 100 to 200 basis points higher (i.e., a
leverage ratio of at least 4% to 5%). None of KeyCorp, Society, nor any banking
subsidiary of either of them has been advised by its appropriate federal
regulatory agency of any specific leverage ratio applicable to it. At September
30, 1993, KeyCorp's Tier 1 leverage ratio was 6.32%, Society's Tier 1 leverage
ratio was 7.34%, and, on a pro forma basis, New Key's Tier 1 leverage ratio
would have been 6.79%. The guidelines also provide that banking organizations
experiencing internal growth or making acquisitions will be expected to maintain
strong capital positions substantially above the minimum supervisory levels,
without significant reliance on intangible assets. Furthermore, the guidelines
indicate that the Federal Reserve Board will continue to consider a "tangible
Tier 1 leverage ratio" in evaluating proposals for expansion or new activities.
The tangible Tier 1 leverage ratio is the ratio of a banking organization's Tier
1 capital less all intangibles, to total assets less all intangibles. Each of
New Key's banking subsidiaries will also be subject to capital requirements
adopted by applicable federal regulatory agencies which are substantially
similar to those
 
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imposed by the Federal Reserve Board on bank holding companies. As of September
30, 1993, each of KeyCorp's and Society's banking subsidiaries had capital in
excess of all minimum regulatory requirements.
 
     All the federal banking agencies have proposed regulations that would add
an additional capital requirement based upon the amount of an institution's
exposure to interest rate risk. The OTS recently adopted its final rule adding
an interest rate component to its risk-based capital rule. Under the final OTS
rule, savings associations with a greater than "normal" level of interest rate
risk exposure will be subject to a deduction from total capital for purposes of
calculating the risk-based capital ratio. The new OTS rule is effective January
1, 1994. The other federal banking agencies have yet to adopt their final rules
on the interest rate risk component of risk-based capital.
 
RECENT LEGISLATION
 
     In 1991, Congress enacted the Federal Deposit Insurance Corporation
Improvement Act of 1991, which, among other things, amended the Federal Deposit
Insurance Act (the "FDIA"), increased the FDIC's borrowing authority to resolve
bank failures, mandated least-cost resolutions and prompt regulatory action with
regard to undercapitalized institutions, expanded consumer protection, and
mandated increased supervision of domestic depositary institutions and the U.S.
operations of foreign depositary institutions. The FDIA requires federal banking
agencies to promulgate regulations and specify standards in numerous areas of
bank operations, including interest rate exposure, asset growth, internal
controls, credit underwriting, executive officer and director compensation, real
estate construction financing, additional review of capital standards, interbank
liabilities, and other operational and managerial standards as the agencies
determine appropriate. These regulations have increased and may continue to
increase the cost of and the regulatory burden associated with the banking
business.
 
     Prompt Corrective Action.  Effective in December 1992, the FDIC, the
Federal Reserve Board, the OCC and the OTS adopted new regulations to implement
the prompt corrective action provisions of the FDIA. The regulations group
FDIC-insured depositary institutions into five broad categories based on their
capital ratios. The five categories are "well capitalized," "adequately
capitalized", "undercapitalized," "significantly undercapitalized," and
"critically undercapitalized." An institution is "well capitalized" if it has a
total risk-based capital ratio of 10% or greater, a Tier 1 risk-based capital
ratio of 6% or greater and a Tier 1 leverage capital ratio of 5% or greater, and
is not subject to a regulatory order, agreement or directive to meet and
maintain a specific capital level for any capital measure. An institution is
"adequately capitalized" if it has a total risk-based capital ratio of 8% or
greater, a Tier 1 risk-based capital ratio of 4% or greater and (generally) a
Tier 1 leverage capital ratio of 4% or greater, and the institution does not
meet the definition of a "well capitalized" institution. An institution is
"undercapitalized" if the relevant capital ratios are less than those specified
in the definition of an "adequately capitalized" institution. An institution is
"significantly undercapitalized" if it has a total risk-based capital ratio of
less than 6%, a Tier 1 risk-based capital ratio of less than 3%, or a Tier 1
leverage capital ratio of less than 3%. An institution is "critically
undercapitalized" if it has a ratio of tangible equity (as defined in the
regulations) to total assets of 2% or less. An institution may be downgraded to,
or be deemed to be in a capital category that is lower than is indicated by its
actual capital position if it is determined to be in an unsafe or unsound
condition or if it receives an unsatisfactory examination rating with respect to
certain matters.
 
     The capital-based prompt corrective action provisions of the FDIA and their
implementing regulations apply to FDIC insured depository institutions and are
not applicable to holding companies which control such institutions. However,
both the Federal Reserve Board and the OTS have indicated that, in regulating
holding companies, they will take appropriate action at the holding company
level based on their assessment of the effectiveness of supervisory actions
imposed upon subsidiary depository institutions pursuant to such provisions and
regulations. Although the capital categories defined under the prompt corrective
action regulations are not directly applicable to Society, KeyCorp, or New Key
under existing law and regulations, if either KeyCorp or Society were placed in
a capital category it would qualify as well-capitalized as of September 30, 1993
and, on a pro forma basis, New Key would have been well-capitalized. As of
September 30, 1993 no banking subsidiary of Society was subject to any
regulatory order, agreement, or directive to meet and maintain a specific
capital level for any capital measure. As of September 30, 1993, no banking
subsidiary of KeyCorp
 
                                       86
<PAGE>   91
 
was subject to any regulatory order, agreement, or directive to meet and
maintain a specific capital level for any capital measure, except for Key Bank
of Maine, which is required pursuant to an agreement with the Superintendent of
the Maine Bureau of Banking to maintain a 6% tangible equity ratio through
December 1994. As of the date hereof, Key Bank of Maine is in compliance with
such agreement.
 
     The FDIA generally prohibits a depository institution from making any
capital distribution (including payment of a dividend) or paying any management
fee to its holding company if the institution would thereafter be
undercapitalized. Undercapitalized depositary institutions also will be subject
to restrictions on borrowing from the Federal Reserve System, effective December
19, 1993. Undercapitalized depository institutions are subject to increased
monitoring by the appropriate federal banking agency, limitations on growth, and
are required to submit a capital restoration plan. The federal banking agencies
may not accept a capital plan without determining, among other things, that the
plan is based on realistic assumptions and is likely to succeed in restoring the
institution's capital. In addition, for a capital restoration plan to be
acceptable, the depository institution's parent holding company must guarantee
that the institution will comply with such capital restoration plan. The
aggregate liability of the parent holding company with respect to such a
guarantee is limited to the lesser of: (a) an amount equal to 5% of the
depository institution's total assets at the time it became undercapitalized, or
(b) the amount which is necessary (or would have been necessary) to bring the
institution into compliance with all capital standards applicable with respect
to such institution as of the time it fails to comply with the plan. If a
depository institution fails to submit an acceptable plan, it is treated as if
it were significantly undercapitalized. Significantly undercapitalized
depository institutions may be subject to a number of requirements and
restrictions, including orders to sell sufficient voting stock to become
adequately capitalized and requirements to reduce total assets, and are
prohibited from receiving deposits from correspondent banks. "Critically
undercapitalized" institutions are subject to the appointment of a receiver or
conservator.
 
     Brokered Deposits.  The FDIC has also adopted final regulations governing
the receipt of brokered deposits. Under these regulations, an FDIC-insured bank
or savings association cannot accept brokered deposits unless: (a) it is well
capitalized or (b) it is adequately capitalized and receives a waiver from the
FDIC.
 
     A bank or savings association that cannot receive brokered deposits also
cannot offer "pass-through" insurance on certain employee benefit accounts,
unless it provides certain notice to affected depositors. In addition, a bank or
savings association that is not well capitalized may not pay an interest rate on
any deposits in excess of 75 basis points over certain prevailing market rates.
At September 30, 1993, KeyCorp's banking subsidiaries had brokered deposits of
$341 million. At September 30, 1993, Society's banking subsidiaries had brokered
deposits of $205 million.
 
     FDIC Insurance.  On September 15, 1992, the FDIC adopted regulations
implementing a transitional risk-related insurance assessment system. The
transitional system was adopted to provide a transition between the previous
flat-rate system and the risk-related system that is required by statute to be
implemented by January 1, 1994. On June 17, 1993, the FDIC adopted certain
amendments to the transitional system and thereby created the final risk-based
assessment system which will be effective beginning with the January 1, 1994
assessment period. Under the risk-related insurance assessment system, a bank or
savings association is required to pay an assessment ranging from $.23 to $.31
per $100 of deposits based on the institution's risk classification.
 
     The risk classification is based on an assignment of the institution by the
FDIC to one of three capital groups and to one of three supervisory subgroups.
The capital groups are "well capitalized," "adequately capitalized" and
"undercapitalized." The three supervisory subgroups are Group "A" (for
financially sound institutions with only a few minor weaknesses), Group "B" (for
those institutions with weaknesses which, if uncorrected, could cause
substantial deterioration of the institution and increase risk to the deposit
insurance fund), and Group "C" (for those institutions with a substantial
probability of loss to the fund absent effective corrective action). For the
period commencing on July 1, 1993 through December 31, 1993, insurance
assessments on all deposits of Society's banking subsidiaries and KeyCorp's
banking subsidiaries were paid at the $.23 per $100 of deposits rate.
 
                                       87
<PAGE>   92
 
DEPOSITOR PREFERENCE STATUTE
 
     Federal legislation has been enacted providing that deposits and certain
claims for administrative expenses and employee compensation against an insured
depositary institution would be afforded a priority over other general unsecured
claims against such an institution, including federal funds and letters of
credit, in the "liquidation or other resolution" of such an institution by any
receiver.
 
IMPLICATIONS OF BEING A SAVINGS AND LOAN HOLDING COMPANY
 
     New Key will continue Society's registration as a savings and loan holding
company within the meaning of HOLA. With certain exceptions, a savings and loan
holding company must obtain prior written approval of the OTS (as well as the
Federal Reserve Board, or other federal agencies whose approval may be required,
depending upon the structure of the acquisition transaction) before acquiring
control of a savings association or savings and loan holding company through the
acquisition of stock or through a merger or some other business combination.
HOLA prohibits the OTS from approving an acquisition by a savings and loan
holding company which would result in the holding company's controlling savings
associations in more than one state unless (a) the holding company is authorized
to do so by the FDIC as an emergency acquisition, (b) the holding company
controls a savings association which operated an office in the additional state
or states on March 5, 1987, or (c) the statutes of the state in which the
savings association to be acquired is located specifically permit a savings
association chartered by such state to be acquired by an out-of-state savings
association or savings and loan holding company.
 
CONTROL ACQUISITIONS
 
     The Change in Bank Control Act of 1978, as amended, prohibits a person or
group of persons from acquiring "control" of a bank holding company unless the
Federal Reserve Board has been given 60 days' prior written notice of proposed
acquisition and within that time period the Federal Reserve Board has not issued
a notice disapproving the proposed acquisition or extending for up to another 30
days the period during which such a disapproval may be issued. An acquisition
may be made prior to the expiration of the disapproval period if the Federal
Reserve Board issues written notice of its intent not to disapprove the action.
Under a rebuttable presumption established by the Federal Reserve Board, the
acquisition of 10% or more of a class of voting stock of a bank holding company
with a class of securities registered under Section 12 of the Exchange Act, such
as New Key, would, under the circumstances set forth in the presumption,
constitute the acquisition of control.
 
     In addition, any "company" would be required to obtain the approval of the
Federal Reserve Board under the BHCA before acquiring 25% (5% in the case of an
acquiror that is a bank holding company) or more of the outstanding shares of
New Key Common Stock, or otherwise obtaining control over New Key. See "TERMS OF
THE MERGER -- Regulatory Approvals" for a description of the standards
applicable under the BHCA.
 
                                       88
<PAGE>   93
 
          UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
 
     The following unaudited pro forma condensed combined balance sheet as of
September 30, 1993, and the pro forma condensed combined statements of income
for the nine-month periods ended September 30, 1993 and 1992, and for each of
the three years in the period ended December 31, 1992, give effect to the
Merger, accounted for as a pooling of interests. The effects of other pending or
recently-completed KeyCorp or Society mergers and acquisitions are not expected
to be material to the unaudited pro forma condensed combined financial
statements and are not included therein. The pro forma information is based on
the historical consolidated financial statements of KeyCorp and Society and
their subsidiaries under the assumptions and adjustments set forth in the
accompanying notes to the pro forma condensed combined financial statements.
 
     The pro forma condensed combined financial statements have been prepared by
the managements of KeyCorp and Society based upon their respective consolidated
financial statements. Pro forma per share amounts are based on the conversion
rate of 1.205 shares of New Key Common Stock for each share of KeyCorp Common
Stock. The pro forma condensed combined financial statements, which include
results of operations as if the Merger had been consummated on January 1, 1990,
do not reflect the merger expenses and restructuring charges anticipated to be
incurred by KeyCorp and Society or the cost savings anticipated to result from
the Merger. As a result, the pro forma combined financial condition and results
of operations prior to the Effective Time may not be indicative of the results
that actually would have occurred if the Merger had been in effect during the
periods presented or which may be attained in the future. The pro forma
condensed combined financial statements should be read in conjunction with the
historical consolidated financial statements and notes thereto of KeyCorp and
Society incorporated by reference herein, and the unaudited consolidated
condensed historical information, including the notes thereto, appearing
elsewhere herein. See "SUMMARY -- Selected Financial Data."
 
                                       89
<PAGE>   94

                          KEYCORP AND SUBSIDIARIES AND
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
              UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
 
                               SEPTEMBER 30, 1993
 
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                               PRO FORMA       PRO FORMA
                                                KEYCORP         SOCIETY       ADJUSTMENTS      COMBINED
                                              -----------     -----------     -----------     -----------
<S>                                           <C>             <C>             <C>             <C>
ASSETS
  Cash and due from banks...................  $ 1,676,364     $   979,703                     $ 2,656,067
  Short-term investments....................       88,051         791,579                         879,630
  Mortgage loans held for sale..............      840,817         280,878                       1,121,695
  Securities available for sale.............    1,068,723         737,053                       1,805,776
  Investment securities.....................    5,150,950       4,906,794                      10,057,744
  Loans, net of unearned income.............   22,075,319      17,019,340                      39,094,659
    Less: Allowance for loan losses.........      314,402         484,992                         799,394
                                              -----------     -----------     -----------     -----------
  Net loans.................................   21,760,917      16,534,348                      38,295,265
  Premises and equipment....................      473,482         430,253                         903,735
  Other assets..............................    1,373,297       1,100,025                       2,473,322
                                              -----------     -----------     -----------     -----------
      Total assets..........................  $32,432,601     $25,760,633      $       0      $58,193,234
                                              -----------     -----------     -----------     -----------
                                              -----------     -----------     -----------     -----------
LIABILITIES AND STOCKHOLDERS' EQUITY
  Deposits:
    Noninterest-bearing.....................  $ 4,969,892     $ 3,090,748                     $ 8,060,640
    Interest-bearing........................   21,604,991      14,674,240                      36,279,231
                                              -----------     -----------     -----------     -----------
      Total deposits........................   26,574,883      17,764,988                      44,339,871
  Short-term borrowings.....................    2,278,336       4,291,869                       6,570,205
  Other liabilities.........................      431,079         617,948                       1,049,027
  Long-term debt............................      830,587       1,077,832                       1,908,419
                                              -----------     -----------     -----------     -----------
      Total liabilities.....................   30,114,885      23,752,637                      53,867,522
  Stockholders' equity:
    Preferred stock.........................      160,000                                (1)      160,000
    Common stock............................      508,279         118,658      $(385,784)(1)      241,153
    Capital surplus.........................      390,764         634,087        385,784 (1)    1,410,635
    Retained earnings.......................    1,258,673       1,344,531                       2,603,204
    Loans to ESOP trustee...................           --         (63,909)                        (63,909)
    Common shares in treasury...............           --         (25,371)                        (25,371)
                                              -----------     -----------     -----------     -----------
      Total stockholders' equity............    2,317,716       2,007,996              0        4,325,712
                                              -----------     -----------     -----------     -----------
      Total liabilities and stockholders'
         equity.............................  $32,432,601     $25,760,633      $       0      $58,193,234
                                              -----------     -----------     -----------     -----------
                                              -----------     -----------     -----------     -----------
</TABLE>
 
              See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
                             FINANCIAL STATEMENTS."
 
                                       90
<PAGE>   95
 
                          KEYCORP AND SUBSIDIARIES AND
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                      NINE MONTHS ENDED SEPTEMBER 30, 1993
 
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                    PRO FORMA
                                                     KEYCORP         SOCIETY        COMBINED
                                                   -----------     -----------     -----------
<S>                                                <C>             <C>             <C>
Interest income..................................  $ 1,752,179     $ 1,411,193     $ 3,163,372
Interest expense.................................      652,920         509,798       1,162,718
                                                   -----------     -----------     -----------
Net interest income..............................    1,099,259         901,395       2,000,654
Provision for loan losses........................      106,226          59,080         165,306
                                                   -----------     -----------     -----------
Net interest income after provision for loan
  losses.........................................      993,033         842,315       1,835,348
Noninterest income...............................      368,415         396,147         764,562
Noninterest expense..............................      905,166         790,505       1,695,671
                                                   -----------     -----------     -----------
Income before income taxes.......................      456,282         447,957         904,239
Provision for income taxes.......................      158,864         157,811         316,675
                                                   -----------     -----------     -----------
Net income.......................................  $   297,418     $   290,146     $   587,564
                                                   -----------     -----------     -----------
                                                   -----------     -----------     -----------
Net income applicable to common shares...........  $   284,359     $   289,108     $   573,467
                                                   -----------     -----------     -----------
                                                   -----------     -----------     -----------
Weighted average common shares...................  100,466,064     118,375,534     239,437,141
Net income per common share......................  $      2.83     $      2.44     $      2.40
</TABLE>
 
              See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
                             FINANCIAL STATEMENTS."
 
                                       91
<PAGE>   96
 
                          KEYCORP AND SUBSIDIARIES AND
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                      NINE MONTHS ENDED SEPTEMBER 30, 1992
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                       PRO FORMA
                                                        KEYCORP         SOCIETY         COMBINED
                                                       ----------      ----------      ----------
<S>                                                    <C>             <C>             <C>
Interest income.....................................   $1,714,337      $1,439,693      $3,154,030
Interest expense....................................      746,291         600,190       1,346,481
                                                       ----------      ----------      ----------
Net interest income.................................      968,046         839,503       1,807,549
Provision for loan losses...........................      144,841         116,257         261,098
                                                       ----------      ----------      ----------
Net interest income after provision for loan
  losses............................................      823,205         723,246       1,546,451
Noninterest income..................................      311,504         387,652         699,156
Noninterest expense.................................      798,997         798,793       1,597,790
                                                       ----------      ----------      ----------
Income before income taxes and cumulative effect of
  accounting change.................................      335,712         312,105         647,817
Provision for income taxes..........................      108,684          97,401         206,085
                                                       ----------      ----------      ----------
Income before cumulative effect of accounting
  change............................................   $  227,028      $  214,704      $  441,732
                                                       ----------      ----------      ----------
                                                       ----------      ----------      ----------
Weighted average common shares......................   97,393,269      117,199,990     234,558,879
Income before cumulative effect of accounting change
  per common share..................................   $     2.19      $     1.79      $     1.81
</TABLE>
 
              See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
                             FINANCIAL STATEMENTS."
 
                                       92
<PAGE>   97
 
                          KEYCORP AND SUBSIDIARIES AND
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                          YEAR ENDED DECEMBER 31, 1992
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                       PRO FORMA
                                                        KEYCORP         SOCIETY         COMBINED
                                                       ----------      ----------      ----------
<S>                                                    <C>             <C>             <C>
Interest income.....................................   $2,295,357      $1,903,434      $4,198,791
Interest expense....................................      977,071         773,047       1,750,118
                                                       ----------      ----------      ----------
Net interest income.................................    1,318,286       1,130,387       2,448,673
Provision for loan losses...........................      190,971         147,366         338,337
                                                       ----------      ----------      ----------
Net interest income after provision for loan
  losses............................................    1,127,315         983,021       2,110,336
Noninterest income..................................      423,659         501,534         925,193
Noninterest expense.................................    1,124,461       1,045,951       2,170,412
                                                       ----------      ----------      ----------
Income before income taxes and cumulative effect of
  accounting change.................................      426,513         438,604         865,117
Provision for income taxes..........................      142,238         137,394         279,632
                                                       ----------      ----------      ----------
Income before cumulative effect of accounting
  change............................................   $  284,275      $  301,210      $  585,485
                                                       ----------      ----------      ----------
                                                       ----------      ----------      ----------
Weighted average common shares......................   97,639,971      117,348,656     235,004,821
Income before cumulative effect of accounting change
  per common share..................................   $     2.73      $     2.51      $     2.39
</TABLE>
 
              See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
                             FINANCIAL STATEMENTS."
 
                                       93
<PAGE>   98
 
                          KEYCORP AND SUBSIDIARIES AND
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                          YEAR ENDED DECEMBER 31, 1991
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                       PRO FORMA
                                                        KEYCORP         SOCIETY         COMBINED
                                                       ----------      ----------      ----------
<S>                                                    <C>             <C>             <C>
Interest income.....................................   $2,388,478      $2,263,873      $4,652,351
Interest expense....................................    1,302,677       1,216,713       2,519,390
                                                       ----------      ----------      ----------
Net interest income.................................    1,085,801       1,047,160       2,132,961
Provision for loan losses...........................      186,116         280,047          466,16
                                                       ----------      ----------      ----------
Net interest income after provision for loan
  losses............................................      899,685         767,113       1,666,798
Noninterest income..................................      394,197         455,064         849,261
Noninterest expense.................................      953,186       1,112,493       2,065,679
                                                       ----------      ----------      ----------
Income before income taxes..........................      340,696         109,684         450,380
Provision for income taxes..........................      103,478          33,206         136,684
                                                       ----------      ----------      ----------
Net income..........................................   $  237,218      $   76,478      $  313,696
                                                       ----------      ----------      ----------
                                                       ----------      ----------      ----------
Net income applicable to common shares..............   $  227,244      $   70,229      $  297,473
                                                       ----------      ----------      ----------
                                                       ----------      ----------      ----------
Weighted average common shares......................   92,821,073     115,266,844     227,116,237
Net income per common share.........................   $     2.45      $      .61      $     1.31
</TABLE>
 
              See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
                             FINANCIAL STATEMENTS."
 
                                       94
<PAGE>   99
 
                          KEYCORP AND SUBSIDIARIES AND
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
 
                          YEAR ENDED DECEMBER 31, 1990
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                       PRO FORMA
                                                        KEYCORP         SOCIETY         COMBINED
                                                       ----------      ----------      ----------
<S>                                                    <C>             <C>             <C>
Interest income.....................................   $2,007,446      $2,521,399      $4,528,845
Interest expense....................................    1,168,804       1,498,953       2,667,757
                                                       ----------      ----------      ----------
Net interest income.................................      838,642       1,022,446       1,861,088
Provision for loan losses...........................       97,302         419,914         517,216
                                                       ----------      ----------      ----------
Net interest income after provision for loan
  losses............................................      741,340         602,532       1,343,872
Noninterest income..................................      283,574         460,608         744,182
Noninterest expense.................................      754,410       1,065,087       1,819,497
                                                       ----------      ----------      ----------
Income (loss) before income taxes and cumulative
  effect of accounting change.......................      270,504          (1,947)        268,557
Provision (credit) for income taxes.................       75,871         (60,698)         15,173
                                                       ----------      ----------      ----------
Income before cumulative effect of accounting
  change............................................   $  194,633      $   58,751      $  253,384
                                                       ----------      ----------      ----------
                                                       ----------      ----------      ----------
Weighted average common shares......................   86,816,123      115,465,132     220,078,560
Income before cumulative effect of accounting change
  per common share..................................   $     2.22      $      .47      $     1.12
</TABLE>
 
              See "NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED
                             FINANCIAL STATEMENTS."
 
                                       95
<PAGE>   100
 
                          KEYCORP AND SUBSIDIARIES AND
                      SOCIETY CORPORATION AND SUBSIDIARIES
 
                          NOTES TO UNAUDITED PRO FORMA
                    CONDENSED COMBINED FINANCIAL STATEMENTS
 
(1) Pro forma adjustments to common shares and capital surplus, at September 30,
    1993, reflect the combination of KeyCorp and Society, accounted for as a
    pooling of interests, through: (a) the exchange of 122,495,270 shares of New
    Key Common Stock for all outstanding shares of KeyCorp Common Stock at an
    Exchange Ratio of 1.205 shares of New Key Common Stock for each share of
    KeyCorp Common Stock, and (b) the exchange of 1,280,000 shares of New Key
    Preferred Stock for all outstanding shares of KeyCorp Preferred Stock on a
    share-for-share basis. Under generally accepted accounting principles
    ("GAAP"), the assets and liabilities of Society will be combined with those
    of KeyCorp at book values. In addition, the statements of income of Society
    will be combined with the statements of income of KeyCorp on a retroactive
    basis.
 
(2) Pro forma weighted average shares outstanding for the nine months ended
    September 30, 1993 and 1992, and for each of the three years in the period
    ended December 31, 1992, reflect the issuance of 1.205 shares of New Key
    Common Stock for each share of KeyCorp Common Stock.
 
(3) The pro forma condensed combined financial statements do not reflect
    one-time merger expenses and restructuring charges which currently are
    estimated to be in the range of $90 to $110 million. It is anticipated that
    these charges will be incurred and recognized by Society and KeyCorp in the
    fourth quarter of 1993 and substantially all paid in 1994. The following
    table provides details of the estimated charges by type of cost.
 
<TABLE>
<CAPTION>
                     TYPE OF COST                         EXPECTED RANGE OF COST
- ------------------------------------------------------    ----------------------
<S>                                                       <C>      <C>
Merger expense........................................     $21 to   $ 21 million
Restructuring charges:
  Severance, relocation, and other employee costs.....      35 to     42 million
  Systems and facilities costs........................      30 to     38 million
  Other restructuring costs...........................       4 to      9 million
                                                          ----------------------
  Total merger expenses and restructuring charges.....     $90 to   $110 million
                                                          ----------------------
</TABLE>
 
    Although no assurance can be given, KeyCorp and Society also expect that
    cost savings will be achieved by New Key at an annual rate of $80 to $105
    million by the end of the first quarter of 1995 as a result of steps to be
    taken to integrate their operations and to achieve efficiencies in certain
    combined lines of business. These anticipated merger cost savings were
    determined based upon preliminary estimates provided by major business
    groups at both Society and KeyCorp. Merger integration task forces, made up
    of representatives of both companies, are in the process of validating these
    preliminary estimates. However, it is presently expected that approximately
    50% of the anticipated annualized savings will be achieved in 1994. The pro
    forma financial data do not give effect to these expected cost savings.
 
(4) The pro forma financial data do not give effect to the pending acquisitions
    by KeyCorp of Jackson Bank, Commercial Bancorporation, and Greeley Bank due
    to immateriality. At September 30, 1993, those entities had total assets of
    $351.3 million, $373.9 million, and $60.9 million, respectively, and total
    shareholders' equity of $24.1 million, $35.0 million, and $2.9 million,
    respectively.
 
    The pro forma financial data also do not give effect to the
    recently-completed acquisition by Society of Schaenen Wood and Associates of
    New York, New York, due to immateriality. Schaenen Wood and Associates is an
    investment advisory firm and had approximately $.8 million in total assets
    and $.2 million in total shareholders' equity at September 30, 1993.
 
(5) SFAS No. 114, "Accounting by Creditors for Impairment of a Loan," and SFAS
    No. 115, "Accounting for Certain Investments in Debt and Equity Securities,"
    were issued in May 1993, and are required to be adopted for fiscal years
    beginning after December 15, 1994 and 1993, respectively, with earlier
    application permitted. Neither KeyCorp nor Society has made a final
    determination of when to adopt either standard, or of the financial impact
    of the adoption of SFAS No. 114. Based on the pro forma combined securities
    portfolio at September 30, 1993, the estimated impact of adoption of SFAS
    No. 115 would be an increase to shareholders' equity of approximately $58
    million, with no impact on the results of operations.
 
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                      DESCRIPTION OF NEW KEY CAPITAL STOCK
 
GENERAL
 
     The New Key Articles of Incorporation authorize 900,000,000 shares of New
Key Common Stock, 25,000,000 shares of New Key Serial Preferred Stock, and
1,400,000 shares of New Key Preferred Stock to be issued in the Merger upon
conversion of the outstanding KeyCorp Preferred Stock.
 
NEW KEY COMMON STOCK
 
     The New Key Articles of Incorporation authorize 900,000,000 shares of New
Key Common Stock. The shares of New Key Common Stock will be entitled (a)
subject to any rights of the New Key Preferred Stock and of any additional
preferred stock of New Key that may be issued on or after the Effective Time, to
dividends when and as declared by the directors, (b) to one vote per share on
each matter properly submitted to shareholders for their vote, and (c) to
participate ratably in the net assets of New Key in the event of liquidation,
subject to any prior rights of the New Key Preferred Stock and of any additional
preferred stock of New Key that may hereafter be issued. The holders of shares
of New Key Common Stock will have no preemptive rights to acquire any additional
shares of New Key. For a further discussion of the rights of holders of New Key
Common Stock, see "COMPARISON OF CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF
KEYCORP, SOCIETY AND NEW KEY."
 
NEW KEY PREFERRED STOCK AND NEW KEY DEPOSITARY SHARES
 
     NEW KEY PREFERRED STOCK.  The New Key Preferred Stock will be a class of
capital stock of New Key into which shares of KeyCorp Preferred Stock will be
converted pursuant to the Merger. 1,400,000 shares of New Key Preferred Stock
will be authorized upon consummation of the Merger. There are no material
differences between the rights of a holder of New Key Preferred Stock and the
rights of a holder of KeyCorp Preferred Stock. The description of certain
provisions of the New Key Preferred Stock set forth below does not purport to be
complete and is subject to, and qualified in its entirety by reference to, the
express terms of the New Key Preferred Stock set forth in the New Key Articles
of Incorporation included as Exhibit I to the Plan of Merger, which is attached
hereto as Appendix I.
 
     Dividends.  Dividends, which are cumulative, are payable on the New Key
Preferred Stock quarterly on March 31, June 30, September 30, and December 31 of
each year at the rate per annum equal to 10% of the liquidation preference, or
$12.50 per share. The New Key Preferred Stock ranks prior to the New Key Common
Stock as to payment of dividends.
 
     Voting Rights.  Except as expressly required by applicable law, the holders
of shares of New Key Preferred Stock will not be entitled to vote on matters
presented to shareholders except under certain circumstances, including (a) if
New Key fails to pay full cumulative dividends on the New Key Preferred Stock or
any other series of New Key Serial Preferred Stock for six quarterly dividend
periods, whether or not consecutive, in which case the number of directors of
New Key will be increased by two and the holders of shares of New Key Preferred
Stock, together with the holders of all other series of New Key Serial Preferred
Stock, will be entitled to vote separately as a class to elect such additional
two Directors, and (b) the adoption of any amendment to the New Key Articles of
Incorporation that would adversely affect the rights of the New Key Preferred
Stock, subject to certain exceptions.
 
     Preemptive Rights.  The holders of shares of New Key Preferred Stock will
have no preemptive rights to acquire any additional shares of New Key.
 
     Redemption.  The New Key Preferred Stock will not be redeemable prior to
June 30, 1996. On and after such date, the New Key Preferred Stock will be
redeemable in cash at the option of New Key, in whole or in part, from time to
time upon not less than 30 nor more than 60 days' notice, with the prior
approval of the Federal Reserve Board (if such approval is required), at $125
per share plus all accrued and unpaid dividends to the date fixed for
redemption. Shares of the New Key Preferred Stock that are redeemed will be
deemed retired.
 
     Conversion.  The New Key Preferred Stock will not be convertible into
shares of any other class or series of capital stock of New Key.
 
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<PAGE>   102
 
     Liquidation Rights.  In the event of any voluntary or involuntary
liquidation, dissolution, or winding up of New Key, the holders of shares of New
Key Preferred Stock will be entitled to receive out of the assets of New Key
available for distribution to shareholders, before any distribution of assets is
made to the holders of New Key Common Stock or any other class of stock of New
Key ranking junior to the New Key Preferred Stock upon liquidation. Liquidating
distributions on the New Key Preferred Stock will be payable in the amount of
$125 per share plus accrued and unpaid dividends.
 
     NEW KEY DEPOSITARY SHARES.  Each New Key Depositary Share represents a
one-fifth interest in a share of New Key Preferred Stock. The New Key Preferred
Stock issued in the Merger will be deposited under a Deposit Agreement, dated
July 27, 1991 (the "Deposit Agreement"), between New Key (as successor to
KeyCorp), Chase Manhattan Bank, or any successor, as depositary (the
"Depositary"), and the holders from time to time of the New Key Depositary
Receipts issued by the Depositary thereunder. The New Key Depositary Receipts so
issued will evidence the New Key Depositary Shares. Subject to the terms of the
Deposit Agreement, each owner of a New Key Depositary Share will be entitled
through the Depositary, in proportion to the one-fifth interest in a share of
New Key Preferred Stock underlying such New Key Depositary Share, to all rights
and preferences of a share of New Key Preferred Stock (including dividend,
voting, redemption and liquidation rights). Because each share of New Key
Preferred Stock entitles the holder thereof to one vote on matters on which the
New Key Preferred Stock is entitled to vote, each New Key Depositary Share will,
in effect, entitle the holder thereof to one-fifth of a vote thereon, rather
than one full vote. There are no material differences between the rights of a
holder of New Key Depositary Shares and the rights of a holder of KeyCorp
Depositary Shares.
 
     Dividends.  The Depositary will distribute all cash dividends or other cash
distributions received in respect of New Key Preferred Stock deposited under the
Deposit Agreement to the record holders of New Key Depositary Shares relating to
such New Key Preferred Stock in proportion to the numbers of such New Key
Depositary Shares owned by such holders on the relevant record date.
 
     Voting Rights.  Upon receipt of notice of any meeting at which the holders
of New Key Preferred Stock deposited under the Deposit Agreement are entitled to
vote, each record holder of such New Key Depositary Shares on the record date
will be entitled to instruct the Depositary as to the exercise of the voting
rights pertaining to the number of shares of New Key Preferred Stock underlying
such holder's New Key Depositary Shares. The holders of New Key Depositary
Shares are entitled to vote on only those matters on which holders of New Key
Preferred Stock are entitled to vote. See "NEW KEY PREFERRED STOCK -- Voting
Rights." The Depositary will vote the number of shares of New Key Preferred
Stock underlying such New Key Depositary Shares in accordance with such
instructions. New Key will endeavor to take all action which may be deemed
necessary by the Depositary in order to enable the Depositary to do so.
 
     Redemption.  Any New Key Preferred Stock subject to redemption deposited
under the Depositary Agreement will be redeemed from the proceeds received by
the Depositary resulting from the redemption of such New Key Preferred Stock.
The redemption price per Depositary Share will be equal to one-fifth ( 1/5) of
the redemption price of $125 per share plus accrued and unpaid dividends to the
date fixed for redemption payable with respect to such New Key Preferred Stock.
 
     Taxation.  Holders of New Key Depositary Shares will be treated for federal
income tax purposes as if they were owners of the New Key Preferred Stock
represented by such Depositary Shares and accordingly will be entitled to take
into account for federal income tax purposes income and deductions to which they
would be entitled if they were holders of New Key Preferred Stock.
 
     Amendment and Termination of Deposit Agreement.  The Depositary Receipts
evidencing New Key Depositary Shares and any provision of the Deposit Agreement
may at any time be amended by agreement between New Key and the Depositary.
However, any amendment that materially alters the rights of the existing holders
of Depositary Shares will not be effective unless such amendment has been
approved by the record holders of at least a majority of the New Key Depositary
Shares then outstanding. The Deposit Agreement may be terminated by New Key or
the Depositary only if (a) all outstanding shares of New Key Depositary Shares
relating thereto have been redeemed or (b) there has been a final distribution
in respect of the New Key Preferred Stock in connection with any liquidation,
dissolution, or winding up of New Key and such distribution has been distributed
to the holders of the related New Key Depositary Shares.
 
                                       98
<PAGE>   103
 
ADDITIONAL CLASS OF AUTHORIZED BUT UNISSUED NEW KEY SERIAL PREFERRED STOCK
 
     If the Merger is consummated, New Key will have 25,000,000 authorized
shares of preferred stock (the "New Key Serial Preferred Stock"), of which no
shares will be issued or outstanding. New Key may issue New Key Serial Preferred
Stock from time to time in one or more series. Except as expressly required by
applicable law, the holders of New Key Serial Preferred Stock will not be
entitled to vote on matters presented to shareholders, except under certain
circumstances, including (a) if New Key fails to pay full cumulative dividends
on the New Key Serial Preferred Stock or the New Key Preferred Stock for six
quarterly dividend periods, whether or not consecutive, in which case the number
of directors of New Key will be increased by two and the holders of shares of
New Key Serial Preferred Stock, together with the holders of New Key Preferred
Stock, will be entitled to vote separately as a class to elect such additional
two directors, and (b) the adoption of any amendment to the New Key Articles of
Incorporation or the New Key Regulations which would be substantially
prejudicial to the rights of the holders of New Key Serial Preferred Stock. The
holders of shares of New Key Serial Preferred Stock will have no preemptive
rights to acquire any additional shares of New Key. Certain terms of the New Key
Serial Preferred Stock may be fixed by New Key's Board of Directors, including
dividend rate, whether dividends shall be cumulative, liquidation price,
redemption price, sinking fund provisions, conversion rights, and restrictions
on issuance of shares of the same series or any other class or series as may be
determined by the directors.
 
                        AMENDED AND RESTATED ARTICLES OF
                    INCORPORATION AND REGULATIONS OF NEW KEY
 
GENERAL
 
     Under applicable law, adoption by the shareholders of Society and KeyCorp
of the Merger Agreement containing the New Key Articles of Incorporation and the
New Key Regulations as exhibits to the Plan of Merger constitutes the adoption
of the New Key Articles of Incorporation and the New Key Regulations as the
articles of incorporation and regulations of New Key as the surviving
corporation in the Merger.
 
AMENDED AND RESTATED ARTICLES OF INCORPORATION OF NEW KEY
 
     The following summary is intended to highlight certain important provisions
of the New Key Articles of Incorporation. This summary is not intended to be
complete and is qualified in its entirety by reference to the more detailed
information contained in the New Key Articles of Incorporation, a copy of which
is included as Exhibit I to the Plan of Merger attached hereto as Appendix I.
 
     Number of Shares of Authorized Stock.  The New Key Articles of
Incorporation authorize 900,000,000 shares of New Key Common Stock, 25,000,000
shares of New Key Serial Preferred Stock, and 1,400,000 shares of New Key
Preferred Stock.
 
     Of the 900,000,000 authorized shares of New Key Common Stock, approximately
118,658,008 shares are currently issued as Society Common Stock, approximately
122,495,270 shares will be issued in connection with the Merger in respect of
the KeyCorp Common Stock, approximately 5,428,299 shares will be reserved for
issuance for outstanding options under the KeyCorp Option Plans which will be
assumed by New Key in the Merger, approximately 7,160,264 shares are reserved
for issuance under option plans maintained by Society, approximately 661,370
will be reserved for issuance under KeyCorp's employee stock purchase and
dividend reinvestment plans, and approximately 254,403,211 shares are reserved
for issuance pursuant to the Society Rights Agreement (assuming the consummation
of the Merger, the exercise of all outstanding Society and KeyCorp employee and
director stock options, and issuance of all shares reserved for issuance under
KeyCorp's employee stock purchase and dividend reinvestment plans). None of the
25,000,000 shares of New Key Serial Preferred Stock will be issued in connection
with the Merger. Up to 1,280,000 shares of New Key Preferred Stock of the
1,400,000 shares of New Key Preferred Stock authorized will be issued in the
Merger upon conversion of the outstanding Key Corp Preferred Stock; as of the
Record Date, there were 1,280,000 shares of New Key Preferred Stock outstanding.
 
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<PAGE>   104
 
     Therefore, upon consummation of the Merger, New Key will have not more than
approximately 391,193,578 shares of Common Stock, 25,000,000 shares of New Key
Serial Preferred Stock, and not more than 120,000 shares of New Key Preferred
Stock available for issuance from time to time as may be necessary in connection
with future financings, acquisitions of other companies, stock dividends, stock
splits, other distributions, or other corporate purposes. The respective Boards
of KeyCorp and Society believe that it is advisable to have authorization for
such additional shares in order to enable New Key, as the need may arise, to
take prompt advantage of market conditions and the availability of favorable
business opportunities without the delay and expense incident to holding a
special meeting of the New Key shareholders. See "BACKGROUND OF AND REASONS FOR
THE MERGER -- Background of the Merger"; "BUSINESS OF KEYCORP -- Pending
Acquisitions" and "BUSINESS OF SOCIETY."
 
     The issuance in future acquisitions or other transactions of the additional
shares that would be authorized under the New Key Articles of Incorporation may
dilute the present equity ownership position of current holders of Society
Common Stock and KeyCorp Common Stock, and could have a dilutive effect on the
book value and earnings per share of New Key Common Stock, and could affect the
relative voting rights of New Key shareholders. Further, additional shares could
be issued by New Key in a private placement to a holder that would, among other
things, vote against a business combination. The effect of issuing shares to a
holder that would vote against a business combination could be to dilute the
ownership of a person attempting to gain control of New Key. Accordingly, a
possible effect of adoption of the New Key Articles of Incorporation may be to
deter potential acquirors from attempts to take control of New Key.
 
     Express Terms of New Key Common Stock, New Key Preferred Stock and New Key
Serial Preferred Stock.  The express terms of the New Key Common Stock, the New
Key Preferred Stock, and the New Key Serial Preferred Stock are discussed under
the heading "DESCRIPTION OF NEW KEY CAPITAL STOCK."
 
     Voting.  If a shareholder vote is required under applicable law, the New
Key Articles of Incorporation reduce the shareholder vote required under
applicable law from a two-thirds vote to a majority of the voting power of New
Key to approve any merger, consolidation, dissolution, disposition of all or
substantially all of the corporation's assets, and any "majority share
acquisition" or "combination," except that the New Key Articles of Incorporation
do not reduce the vote of shareholders required to approve a transaction which
requires shareholder approval under the Ohio Interested Shareholder Transaction
Law. See "COMPARISON OF CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF KEYCORP,
SOCIETY, AND NEW KEY -- Voting Rights -- Mergers, Consolidations, Dissolutions,
Combinations, and Other Transactions" and "-- State Takeover Statutes and
Takeover Provisions of Charter Documents." No holders of shares of any class of
New Key capital stock will be entitled to cumulate their voting power.
 
     Opt-Out of Control Share Acquisition Statute.  The New Key Articles of
Incorporation contain an election that New Key will not be covered by Section
1701.831 of the Ohio General Corporation Law, which would otherwise apply to
control share acquisitions of shares of New Key. For a more detailed discussion,
see "COMPARISON OF CERTAIN RIGHTS OF HOLDERS OF CAPITAL STOCK OF KEYCORP,
SOCIETY, AND NEW KEY -- State Takeover Statutes and Takeover Provisions of
Charter Documents."
 
REGULATIONS OF NEW KEY
 
     The following summary is intended to highlight selected provisions of the
New Key Regulations. This summary is not intended to be complete and is
qualified in its entirety by reference to the New Key Regulations, a copy of
which is included as Exhibit II to the Plan of Merger attached hereto as
Appendix I. In particular, this summary does not describe certain provisions of
the Regulations which are, or the effects of which are, described under the
heading "TERMS OF THE MERGER -- Board of Directors and Chief Executive Officers
of New Key Through December 31, 1998," and reference is made to that section of
this Prospectus/Joint Proxy Statement for a description of such provisions.
Under Ohio law, regulations are similar to by-laws under New York law.
 
     Special Meetings of Shareholders.  The New Key Regulations will provide
that a special meeting of shareholders of New Key may be called only by (a) the
Chairman of the Board, (b) the President, or in the
 
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<PAGE>   105
 
President's absence, death, or disability, a Vice President, (c) the Board of
Directors by action at a meeting, or by a majority of the Board of Directors
acting without a meeting, or (d) by persons who hold 50% of all shares
outstanding and entitled to vote at the special meeting.
 
     Advance Notice of Shareholder Proposals and Nominations.  The New Key
Regulations will provide that at any meeting of shareholders, proposals by
shareholders (including director nominations) will be considered if advance
notice of such proposal has been timely given as described below. Written notice
of any shareholder proposal must be received by the Secretary of New Key at New
Key's principal executive offices not less than 60 nor more than 90 days prior
to the shareholders' meeting, unless New Key gives less than 75 days' prior
public disclosure of the date of the meeting or prior notice of the meeting to
its shareholders, in which case written notice of such shareholder proposal must
be given to New Key's Secretary within 15 days of the date on which New Key
gives prior public disclosure of the date of the meeting or prior notice of the
meeting to its shareholders. The written notice of any such proposal must set
forth the text of the proposal to be presented and a brief written statement of
the reasons why such shareholder favors the proposal, such shareholder's name
and record address, the number and class of all shares of each class of stock of
New Key beneficially owned by such shareholder, and any material interest of
such shareholder in the proposal (other than as a shareholder). In addition, if
the shareholder proposal constitutes a nomination of an individual for director,
the written notice of such proposal must also set forth: (a) as to each person
who is not an incumbent director when the shareholder proposes to nominate such
person for election as a director, (i) the name, age, business, and residence
address of such person, (ii) the principal occupation or employment of such
person for the last five years, (iii) the class and number of shares of capital
stock of New Key that are beneficially owned by such person, (iv) all positions
of such person as a director, officer, partner, employee, or controlling
shareholder of any corporation or other business entity, (v) any prior position
as a director, officer, or employee of a depository institution or any company
controlling a depository institution, (vi) any other information regarding such
person that would be required to be included in a proxy statement filed pursuant
to the proxy rules of the SEC had such person been nominated by the Board of
Directors of New Key, and (vii) the written consent of each nominee to serve as
a director of New Key if so elected, and, (b) as to the shareholder giving the
written notice, (i) a representation that the shareholder is a holder of record
of shares of New Key entitled to vote at such meeting and intends to appear in
person or by proxy at the meeting to nominate the person or persons specified in
the notice, and (ii) a description of all arrangements or understandings between
the shareholder and such nominee and any other person or persons (naming such
person or persons) pursuant to which the nomination is to be made by the
shareholder.
 
     Classified Board of Directors.  The New Key Regulations provide that the
Board of Directors of New Key will be divided into three classes having as equal
a number of directors as possible. The respective terms of the three classes are
staggered so that at any time the term of one class will expire at the next
annual meeting of shareholders thereafter occurring, the term of a second class
will expire at the second annual meeting of shareholders thereafter occurring,
and the term of a third class will expire at the third annual meeting of
shareholders thereafter occurring. At each annual meeting of shareholders of New
Key, the successors to the directors of the class whose term will expire in that
year will be elected to hold office for a term expiring at the annual meeting of
shareholders occurring in the third year after the date of their election.
 
     The New Key Regulations provide that the Board of Directors or the
shareholders of New Key may change the number of directors to a total number of
no fewer than 20 directors and no more than 24 directors. The Board of Directors
of New Key may change the total number of directors by the affirmative vote of
two-thirds of the entire authorized Board. The shareholders of New Key may
change the total number of directors at a meeting of the shareholders called for
the purpose of electing directors (a) by the affirmative vote of the holders of
shares entitling them to exercise three-quarters of the voting power of New Key
represented at the meeting and entitled to elect directors or (b) if the
proposed change in the number of directors is recommended by two-thirds of the
entire authorized Board of Directors, by the affirmative vote of the holders of
shares entitling them to exercise a majority of the voting power of New Key
represented at the meeting and entitled to elect directors. The ability of the
Board of Directors or shareholders to change the total number of directors is
subject to the limitation regarding the number of directors referred to above
and to the limitations described in "TERMS OF THE MERGER -- Board of Directors
and Chief Executive Officers of New Key
 
                                       101
<PAGE>   106
 
Through December 31, 1998" regarding the number of Insider Directors and the
requirement that any increase or decrease in the number of directors be effected
by a multiple of two.
 
     The New Key Regulations provide that the number of authorized directors of
New Key will be automatically increased by two and that the holders of any class
or series of preferred stock of New Key will have the right to elect two
directors of New Key during any time when dividends payable on such shares are
in arrears, as set forth in the New Key Articles of Incorporation and/or the
express terms of the preferred stock of New Key. See "DESCRIPTION OF NEW KEY
CAPITAL STOCK -- New Key Preferred Stock and New Key Depositary Shares" and "--
Additional Class of Authorized but Unissued New Key Serial Preferred Stock."
 
     Nominations for Director.  For a discussion of the process of director
nominations through December 31, 1998, see "TERMS OF THE MERGER -- Board of
Directors and Chief Executive Officers of New Key through December 31, 1998."
The New Key Regulations provide that after December 31, 1998, nominations for
the election of directors may be made by the affirmative vote of two-thirds of
the entire authorized Board of Directors.
 
     Nominations for the election of directors may also be made, before and
after December 31, 1998, by any shareholder of New Key entitled to vote for the
election of directors at a meeting, but only if written notice of such
shareholder's intent to make such nomination is received by the Secretary of New
Key, at New Key's principal executive offices, not less than 60 nor more than 90
days prior to the meeting; provided, however, that in the event that less than
75 days' notice to the shareholders or prior public disclosure of the date of
the meeting is given or made, the written notice of such shareholder's intent to
make such nomination must be given to the Secretary of New Key not later than
the close of business on the fifteenth day following the earlier of the day on
which such notice of the date of the meeting was mailed or such public
disclosure was made. Each such notice of a shareholder's intent to make a
nomination must set forth specific information about the nominee and the
shareholder giving the notice. See "AMENDED AND RESTATED ARTICLES OF
INCORPORATION AND REGULATIONS OF NEW KEY -- Regulations of New Key -- Advance
Notice of Shareholder Proposals and Nominations."
 
     Vote Required for Director Action.  The New Key Regulations provide, in the
absence of a different or greater vote as specified for specific matters in the
New Key Regulations, that a majority of the entire authorized Board of Directors
constitutes a quorum for the transaction of any business at any meeting at the
Board and that the affirmative vote of a majority of directors present at any
meeting at which a quorum is present will be the act of the Board.
 
     The New Key Regulations provide that the affirmative vote of at least
two-thirds of the entire authorized Board of Directors is required for approval
of any of the following transactions: (a) any merger or consolidation of New Key
(i) with any interested shareholder, as such term is defined in Chapter 1704 of
the Ohio General Corporation Law, or (ii) with any other corporation if the
merger or consolidation is caused by any interested shareholder, (b) any
recommendation or approval of any transaction as a result of which any person
will become an interested shareholder, (c) any merger or consolidation involving
New Key and any other corporation with assets having an aggregate book value
equal to 50% or more of the aggregate book value of all the assets of New Key
determined on a consolidated basis, (d) any liquidation or dissolution of New
Key, (e) any sale, lease, exchange, mortgage, pledge, transfer, or other
disposition (in one transaction or a series of transactions) to or with an
interested shareholder of assets of New Key which assets have an aggregate book
value equal to 10% or more of the aggregate book value of all the assets of New
Key determined on a consolidated basis, (f) any sale, lease, exchange, mortgage,
pledge, transfer, or other disposition (in one transaction or a series of
transactions) to or with any person of assets of New Key which assets have an
aggregate book value equal to 25% or more of the aggregate book value of all the
assets of New Key determined on a consolidated basis, (g) any transaction which
results in the issuance or transfer by New Key of more than 15% of the voting
stock of New Key to any person, (h) any transaction involving New Key which has
the effect, directly or indirectly, of increasing the proportionate share of the
stock or securities of any class or series of New Key which is owned by an
interested shareholder, (i) any transaction requiring the amendment of any
provision of the New Key Articles of Incorporation if to amend such provision
otherwise would require an affirmative vote of at least two-thirds of the entire
authorized Board of Directors or any
 
                                       102
<PAGE>   107
 
transaction requiring the amendment of any provision of the New Key Regulations
if to amend such provision otherwise would require an affirmative vote of at
least two-thirds of the entire authorized Board of Directors of New Key
(provided, however, if the amendment of any provision of the New Key Regulations
requires an affirmative vote of more than two-thirds of the entire authorized
Board of Directors, any transactions having the same effect may only be
authorized by the vote required to amend such provision of the New Key
Regulations), and (j) any receipt by an interested shareholder, other than
proportionately as a shareholder of New Key, of the benefit, directly or
indirectly, of any financial benefits provided through New Key.
 
     Removal of Directors and Filling Vacancies.  The New Key Regulations
provide that the Board of Directors may remove any director and thereby create a
vacancy on the Board: (a) if by order of court he has been found to be of
unsound mind or if he is adjudicated a bankrupt or (b) if within 60 days from
the date of his election he does not qualify by accepting in writing his
election to such office or by acting at a meeting of directors.
 
     All the directors, or all of the directors of a particular class, or any
individual director, may be removed from office, without assigning any cause, by
the affirmative vote of the holders of shares entitling them to exercise
three-quarters of the voting power of New Key entitled to elect directors in
place of those to be removed. In case of any such removal, a new director
nominated in accordance with the New Key Regulations may be elected at the same
meeting for the unexpired term of each director removed. Failure to elect a
director to fill the unexpired term of any director removed is deemed to create
a vacancy on the Board.
 
     The New Key Regulations will provide that any vacancies on the Board of
Directors resulting from death, resignation, removal, or other cause may only be
filled by the affirmative vote of two-thirds of the remaining directors then in
office, even though less than a quorum of the Board of Directors, or by a sole
remaining director. Newly created directorships resulting from any increase in
the number of directors by action of the Board of Directors shall be filled by
the affirmative vote of two-thirds of the directors then in office, or if not so
filled, by the shareholders at the next annual meeting thereof or at a special
meeting called for that purpose in accordance with the New Key Regulations. In
the event that the shareholders increase the authorized number of directors in
accordance with the New Key Regulations but fail at the meeting at which such
increase is authorized, or an adjournment of that meeting, to elect the
additional directors provided for, or if the shareholders fail at any meeting to
elect the whole authorized number of directors, such vacancies may be filled by
the affirmative vote of two-thirds of the directors then in office. Any director
elected in accordance with the three preceding sentences shall hold office for
the remainder of the full term of the class of directors in which the new
directorship was created or the vacancy occurred and until such director's
successor shall have been elected and qualified. Notwithstanding the foregoing,
through December 31, 1998, the Board of Directors of New Key may only fill
vacancies (however caused) in accordance with the provisions of the New Key
Regulations described under "TERMS OF THE MERGER -- Board of Directors and Chief
Executive Officers of New Key through December 31, 1998" and "AMENDED AND
RESTATED ARTICLES OF INCORPORATION OF NEW KEY -- Regulations of New Key --
Nominations for Director."
 
     Membership of Board Committees.  The New Key Regulations provide that the
Board of Directors may, by resolution adopted by the affirmative vote of at
least two-thirds of the entire authorized Board, designate annually (a) four or
more of its members to constitute members of the Executive Committee and (b) one
or more of its members to be alternate members of the Executive Committee to
take the place of any absent member or members at any meeting of the Executive
Committee. For a discussion regarding the membership of the Executive Committee
through December 31, 1998, see "TERMS OF THE MERGER -- Board of Directors and
Chief Executive Officers of New Key through December 31, 1998."
 
     The New Key Regulations also provide for the designation of a Nominating
Committee, to remain in effect until December 31, 1998. For a detailed
discussion regarding the Nominating Committee, see "TERMS OF THE MERGER -- Board
of Directors and Chief Executive Officers of New Key through December 31, 1998."
 
     The New Key Regulations further provide that the Board of Directors may, by
resolution adopted by the affirmative vote of at least two-thirds of the entire
authorized Board, designate from among its members one or more other committees,
each of which must (a) consist of not fewer than three directors, together with
such alternates as the Board of Directors may appoint to take the place of any
absent member or members at any
 
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meeting of such committee, and (b) except as otherwise prescribed by law, have
such authority of the Board as may be specified in the resolution of the Board
designating such committee.
 
     Indemnification.  The New Key Regulations provide that New Key will
indemnify to the fullest extent permitted by law any person made or threatened
to be made a party to any action, suit, or proceeding by reason of the fact that
he is or was a director, officer, or employee of New Key or is or was serving at
the request of New Key as a director, trustee, officer, or employee of a bank,
other corporation, partnership, joint venture, trust, or enterprise. New Key
will indemnify any person who served as a director, officer, or employee of any
constituent corporation that is merged into New Key, or who served at the
request of such constituent corporation as a director, officer, trustee, or
employee of a bank, other corporation, partnership, joint venture, trust, or
other enterprise for acts, omissions, or other events or occurrences prior to
the merger to the same extent as the constituent corporation, if its separate
existence had continued, would have been required to indemnify such persons. The
indemnification provided in the New Key Regulations is not exclusive of any
other rights to indemnification which any persons may have.
 
     Headquarters Location.  The New Key Regulations provide that the
headquarters and principal executive offices of New Key will be located in
Cleveland, Ohio.
 
     Amendment of New Key Regulations.  The New Key Regulations provide that
through December 31, 1998, the provisions of the New Key Regulations relating to
(a) the number, classification, and term of office of directors, (b) Chairman of
the Board, Chairman of the Executive Committee, and chairmen of other
committees, (c) nominations and removal of directors and filling vacancies in
the Board of Directors, (d) the Nominating Committee, (e) Chief Executive
Officer and President through December 31, 1998, (f) removal of officers, (g)
the headquarters of New Key, and (h) amendment of the New Key Regulations may
only be amended, repealed, or altered (i) by the affirmative vote of the holders
of shares entitling them to exercise three-quarters of the voting power of New
Key on such proposal, (ii) if such amendment, repeal, or alternation is
recommended by three-quarters of the entire authorized Board of Directors of New
Key, by the affirmative vote of the holders of shares entitling them to exercise
a majority of the voting power of New Key on such proposal, or (iii) without a
meeting, by the written consent of the holders of shares entitling them to
exercise 100% of the voting power of New Key on such proposal. The New Key
Regulations also provide that until December 31, 1998, any New Key Regulations,
other than those New Key Regulations specifically listed in the immediately
preceding sentence, and, after December 31, 1998, any New Key Regulations, may
be adopted, amended, repealed, or altered (a) by the affirmative vote of the
holders of shares entitling them to exercise three-quarters of the voting power
of New Key on such proposal, (b) if such adoption, amendment, repeal, or
alteration is recommended by two-thirds of the entire authorized Board of
Directors, by the affirmative vote of the holders of shares entitling them to
exercise a majority of the voting power of New Key on such proposal, or (c)
without a meeting, by the written consent of the holders of shares entitling
them to exercise 100% of the voting power of New Key on such proposal.
 
     Certain of the provisions of the New Key Articles of Incorporation and the
New Key Regulations may impede or prevent a change of control of New Key, even
in circumstances where a majority of the shareholders may believe that such a
change of control would be in the best interests of New Key.
 
                   COMPARISON OF CERTAIN RIGHTS OF HOLDERS OF
                 CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY
 
     If the Merger is consummated, all shareholders of KeyCorp and Society
(except shareholders of KeyCorp and Society who perfect their dissenters'
rights) will become shareholders of New Key. KeyCorp is a corporation organized
under, and governed by, New York law, the KeyCorp Certificate of Incorporation,
and the KeyCorp By-laws, whereas Society is a corporation organized under, and
governed by, Ohio law, the Society Articles of Incorporation, and the Society
Regulations. If the Merger is consummated, New Key will be a corporation
organized under, and governed by, Ohio law, the New Key Articles of
Incorporation, and the New Key Regulations. The rights of a holder of KeyCorp
Common Stock and Society Common Stock are each similar in some respects and
different in other respects from the rights of a holder of New Key Common Stock.
Certain of these similarities and differences are summarized below. THIS SUMMARY
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE NEW YORK BUSINESS CORPORATION
 
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LAW, THE OHIO GENERAL CORPORATION LAW, THE OHIO INTERESTED SHAREHOLDER
TRANSACTION LAW, THE KEYCORP CERTIFICATE OF INCORPORATION AND THE KEYCORP
BY-LAWS, THE SOCIETY ARTICLES OF INCORPORATION AND THE SOCIETY REGULATIONS, AND
THE NEW KEY ARTICLES OF INCORPORATION AND THE NEW KEY REGULATIONS.
 
VOTING RIGHTS
 
     Cumulative Voting and Pre-Emptive Rights.  No holders of shares of any
class of capital stock of KeyCorp, Society, or New Key is entitled to the right
of cumulative voting or to pre-emptive rights.
 
     Mergers, Consolidations, Dissolutions, Combinations, and Other
Transactions.  Under New York law, a merger, consolidation, dissolution, and
disposition of all or substantially all of a corporation's assets must be
adopted by the affirmative vote of the holders of two-thirds of all outstanding
shares entitled to vote. Except for "Business Combinations" (see "State Takeover
Statutes and Takeover Provisions of Charter Documents" below), New York law does
not require shareholder approval in the case of "combinations" and "majority
share acquisitions," as is required in Ohio. KeyCorp's Certificate of
Incorporation does not raise or lower the percentage vote required by New York
law.
 
     Subject to the provisions discussed in "State Takeover Statutes and
Takeover Provisions of Charter Documents" below, Ohio law requires adoption of a
merger, consolidation, dissolution, disposition of all or substantially all of
the corporation's assets, and a "majority share acquisition" or "combination"
involving issuance or transfer of shares with one-sixth or more of the voting
power of the corporation by the affirmative vote of the holders of shares
entitled to exercise at least two-thirds of the voting power of the Corporation
on such proposal, unless the articles of incorporation specify a different
proportion (not less than a majority). Adoption by the affirmative vote of the
holders of two-thirds of any class of shares, unless otherwise provided in the
articles, may also be required if the rights of holders of that class are
affected in certain respects by the merger or consolidation. Except for the
"Fair Price and Supermajority Provisions" discussed below, in lieu of the
two-thirds shareholder vote required by law, the Society Articles of
Incorporation require, and the New Key Articles of Incorporation will require,
adoption by the affirmative vote of the holders of shares entitling them to
exercise a majority of the voting power of Society and New Key, respectively, on
any such proposal, and by the affirmative vote of the majority of any class if a
class vote is required.
 
     Fair Price and Supermajority Vote Provisions.  The KeyCorp Certificate of
Incorporation does not include fair price or supermajority vote provisions.
 
     The Society Articles of Incorporation contain "fair price" and
"supermajority vote" provisions which apply to "Business Combinations" with a
corporation or other person who directly or indirectly then beneficially owns,
or within the preceding two years beneficially owned, 10% or more of the
outstanding voting stock of Society (an "Interested Shareholder"). A "Business
Combination" includes a merger or consolidation of Society or a subsidiary of
Society with or into an Interested Shareholder, a sale of assets to or purchase
of assets from an Interested Shareholder exceeding $10,000,000 (other than in
the ordinary course of business between subsidiaries of Society and subsidiaries
of the Interested Shareholder), the issuance by Society of securities to, or the
purchase by Society of securities issued by, an Interested Shareholder, the
adoption of a plan for the dissolution or liquidation of Society proposed by an
Interested Shareholder, and any reclassification or recapitalization of
securities of Society resulting in an increase in the relative voting power of
an Interested Shareholder. The so-called "fair price" provision derives its name
from the fact that it specifies a minimum consideration (determined pursuant to
a formula based on the highest per share price paid by the Interested
Shareholder in acquiring Society capital stock plus interest) which must be paid
and certain procedural requirements which must be satisfied in order to effect a
Business Combination with an Interested Shareholder unless the Business
Combination is approved by two-thirds of the "Continuing Directors" or by
holders of not less than two-thirds of the outstanding voting stock of Society
not beneficially owned by the Interested Shareholder. "Continuing Directors" are
directors who are unaffiliated with the Interested Shareholder and who were
either members of Society's Board of Directors prior to the time an Interested
Shareholder became such or any approved successor to a Continuing Director. The
supermajority vote provision provides that a Business Combination with an
Interested Shareholder cannot be effected unless
 
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<PAGE>   110
 
approved by two-thirds of the Continuing Directors or by holders of at least 75%
of the outstanding voting stock of Society. Any approval required under the fair
price provision or supermajority vote provision is in addition to any approval
required under applicable law or other provisions of the Society Articles of
Incorporation.
 
     The fair price and supermajority vote provisions may not be repealed,
amended, or otherwise modified unless (a) the Continuing Directors (or, if there
is no Interested Shareholder, the Board of Directors of Society) recommend such
repeal, amendment, or modification and such repeal, amendment, or modification
is approved by the shareholders of Society by the same vote as any other
amendment to Society's articles would have to be approved, or (b) such repeal,
amendment, or modification is approved by the affirmative vote of holders of (i)
not less than 75% of the outstanding voting stock of Society voting together as
a single class, and (ii) not less than 66 2/3% of the outstanding voting stock
of Society held by all shareholders other than Interested Shareholders voting
together as a single class.
 
     The New Key Articles of Incorporation will not include fair price or
supermajority vote provisions.
 
STATE TAKEOVER STATUTES AND TAKEOVER PROVISIONS OF CHARTER DOCUMENTS
 
     Under New York law applicable to KeyCorp, a corporation cannot enter into
certain business combinations involving persons beneficially owning 20% or more
of its outstanding voting stock (an "interested shareholder") unless its Board
has approved the business combination or the stock acquisition by which the
person's interest reached 20% ("Stock Acquisition") prior to the date of the
Stock Acquisition. This prohibition applies for five years after the date of the
Stock Acquisition; thereafter, the corporation may enter into a business
combination with the interested person, but only (1) if the combination is
approved by a majority of its outstanding voting stock beneficially owned by
disinterested shareholders or (2) if the disinterested shareholders receive a
price for their shares equal to or greater than the price determined in
accordance with certain statutory formulas. The business combinations subject to
the foregoing restrictions include, among other things, a merger or
consolidation involving the corporation and the interested shareholder, a sale,
lease, exchange, mortgage, pledge, transfer, or other disposition of substantial
assets of the corporation to or with the interested shareholder, certain
issuances or sales of shares of the corporation to the interested shareholder,
the adoption of a plan of liquidation or dissolution of the corporation that was
proposed by the interested shareholder, a reclassification, recapitalization, or
other transaction proposed on behalf of the interested shareholder that would
result in an increase in the proportion of shares beneficially owned by the
interested shareholder, and the receipt by the interested shareholder of a loan,
guarantee, other financial assistance, or tax benefit not received
proportionately by all shareholders. New York law also prevents a New York
corporation from purchasing more than 10% of its common shares from a
shareholder for more than the market value thereof unless the purchase is
approved by its Board and by a majority vote of all of its outstanding shares
entitled to vote unless the offer to purchase is extended to all of its
shareholders, or unless the offer is for shares of which the holder has been the
beneficial owner for more than two years.
 
     Under the Ohio Interested Shareholder Transaction Law, applicable to both
Society and New Key, a corporation is prohibited from entering into a "Chapter
1704. transaction" (as defined herein) with the direct or indirect beneficial
owner of 10% or more of the shares of the corporation (a "10% shareholder") for
at least three years after the shareholder attains his 10% ownership unless the
board of directors of the corporation approves, before the shareholder attains
his 10% ownership, either the transaction or the purchase of shares resulting in
his 10% ownership. A "Chapter 1704. transaction" is broadly defined to include,
among other things, a merger or consolidation involving the corporation and the
10% shareholder, a sale or purchase of substantial assets between the
corporation and the 10% shareholder, a reclassification, recapitalization, or
other transaction proposed by the 10% shareholder that results in an increase in
the proportion of shares beneficially owned by the 10% shareholder, and the
receipt by the 10% shareholder of a loan, guarantee, other financial assistance,
or tax benefit not received proportionately by all shareholders. Even after the
three-year period, Ohio law restricts these transactions between the corporation
and the 10% shareholder. At that time, such a transaction may proceed only if
(a) the board of directors of the corporation had approved the purchase of
shares that gave the shareholder his 10% ownership, (b) the transaction is
approved by the holders of shares of the corporation with at least two-thirds of
the voting power of the corporation (or a different proportion set forth in the
articles of incorporation), including at least a majority of the outstanding
shares after excluding
 
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shares held or controlled by the 10% shareholder, or (c) the business
combination results in shareholders, other than the 10% shareholder, receiving a
prescribed fair price plus interest for their shares.
 
     In addition, under Ohio law, the acquisition by any person (as used in this
section, an "acquiring person") of shares of voting stock of Society giving the
acquiring person voting power of Society within any of the following ranges
would constitute a "control share acquisition": (a) one-fifth or more but less
than one-third of such voting power; (b) one-third or more but less than a
majority of such voting power; or (c) a majority or more of such voting power.
An acquiring person may make a control share acquisition only if (1) the
shareholders of Society who hold shares entitling them to vote in the election
of directors authorize such acquisition at a special meeting held for that
purpose at which a quorum is present by an affirmative vote of a majority of the
voting power of Society in the election of directors represented at such meeting
in person or by proxy, and of a majority of the portion of such voting power
excluding the voting power of "interested shares" (as defined below). A quorum
shall be deemed to be present at such special meeting if at least a majority of
the voting power of Society in the election of directors, and a majority of the
portion of such voting power excluding the voting power of interested shares,
are represented at such meeting in person or by proxy; and (2) such acquisition
is consummated, in accordance with the terms so authorized, no later than 360
days following shareholder authorization of the control share acquisition.
"Interested shares" means the shares of Society in respect of which any of the
following persons may exercise or direct the exercise of the voting power of
Society in the election of directors: (a) the acquiring person; (b) any officer
of Society elected or appointed by the directors of Society; or (c) any employee
of Society who is also a director of Society. "Interested shares" also means any
shares of Society acquired, directly or indirectly, by any person from the
holder or holders thereof for a valuable consideration during the period
beginning with the date of the first public disclosure of a proposed control
share acquisition of Society or any proposed merger, consolidation, or other
transaction that would result in a change in control of Society or all or
substantially all of its assets and ending on the date of any special meeting of
Society's shareholders held thereafter for the purpose of voting on a control
share acquisition proposed by an acquiring person if either of the following
applies: (a) the aggregate consideration paid or given by the person who
acquired the shares, and any other persons acting in concert with him, for all
such shares exceeds two hundred fifty thousand dollars; or (b) the number of
shares acquired by the person who acquired the shares, and any other persons
acting in concert with him, exceeds one-half of one percent of the outstanding
shares entitled to vote in the election of directors. Society has not taken any
corporate action to opt-out of the Ohio control share acquisition law. The New
Key Articles of Incorporation contain an express opt-out provision with regard
to the Ohio control share acquisition law. See "CERTAIN REGULATORY
CONSIDERATIONS -- Control Acquisitions."
 
     Ohio law further requires that any offeror making a "control bid" for any
securities of a "subject company" pursuant to a tender offer must file
information specified in the Ohio Securities Act with the Ohio Division of
Securities when the bid commences. The Ohio Division of Securities must then
decide whether it will suspend the bid under the statute within three calendar
days. If it does so, it must initiate hearings on the suspension within 10
calendar days of the suspension date, and make a determination of whether to
maintain the suspension, within 16 calendar days of the suspension date. For
this purpose, a "control bid" is the purchase of or an offer to purchase any
equity security of a subject company from a resident of Ohio that would, in
general, result in the offeror acquiring 10% or more of the outstanding shares
of such company. A "subject company" includes any company with both (a) its
principal place of business or principal executive office in Ohio or assets
located in Ohio with a fair market value of at least $1,000,000 and (b) more
than 10% of its record or beneficial equity security holders in Ohio, more than
10% of its equity securities owned of record or beneficially by Ohio residents,
or more than 1,000 of its record or beneficial equity security holders in Ohio.
 
     To avoid continued suspension of its bid in Ohio, an offeror must comply
with three requirements: (a) the information required by the statute must be
provided to the Ohio Division of Securities, (b) all material information
regarding the control bid must be provided to the offerees, and (c) there may be
no material violation of any provision of the Ohio Securities Act.
 
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<PAGE>   112
 
SHAREHOLDER RIGHTS PLANS
 
     KeyCorp Rights.  On October 1, 1993 the Board of Directors of KeyCorp
declared a dividend payable November 1, 1993 of one KeyCorp Right for each
outstanding share of KeyCorp Common Stock held of record at the close of
business on October 15, 1993 (the "Record Time"), or issued thereafter and prior
to the Separation Time (as defined herein) and thereafter pursuant to options
and convertible securities outstanding at the Separation Time. The KeyCorp
Rights are issued pursuant to the KeyCorp Rights Agreement, between KeyCorp and
the KeyCorp Rights Agent. Each KeyCorp Right entitles its registered holder to
purchase from KeyCorp, after the Separation Time, one-hundredth of a share of
Participating Preferred Stock, par value $5.00 per share ("Participating
Preferred Stock"), for $115 (the "Exercise Price") subject to adjustment.
 
     The KeyCorp Rights will be evidenced by the KeyCorp Common Stock
certificates until the close of business on the earlier of (either, the
"Separation Time") (a) the tenth business day (or such later date as the Board
of Directors of KeyCorp may from time to time fix by resolution adopted prior to
the Separation Time that would otherwise have occurred) after the date on which
any Person (as defined in the KeyCorp Rights Agreement) commences a tender or
exchange offer which, if consummated, would result in such Person's becoming an
Acquiring Person, as defined below, and (b) the tenth day after the first date
(the "Flip-in Date") of public announcement by KeyCorp that such Person has
become an Acquiring Person, other than as a result of a Flip-over Transaction or
Event (as defined herein); provided that if the foregoing results in the
Separation Time being prior to the Record Time, the Separation Time shall be the
Record Time; and provided further that if a tender or exchange offer referred to
in clause (a) is cancelled, terminated, or otherwise withdrawn prior to the
Separation Time without the purchase of any shares of stock pursuant thereto,
such offer shall be deemed never to have been made. An "Acquiring Person" is any
Person having Beneficial Ownership (as defined in the Rights Agreement) of 20%
or more of the outstanding shares of KeyCorp Common Stock, which term shall not
include (i) KeyCorp, any wholly-owned subsidiary of KeyCorp or any employee
stock ownership or other employee benefit plan of KeyCorp, (ii) any Person who
shall become the Beneficial Owner (as defined in the Rights Agreement) of 20% or
more of the outstanding KeyCorp Common Stock solely as a result of an
acquisition of KeyCorp Common Stock by KeyCorp, until such time as such Person
acquires additional KeyCorp Common Stock, other than through a dividend or stock
split, (iii) any Person who becomes an Acquiring Person without any plan or
intent to seek or affect control of KeyCorp if such Person, upon notice by
KeyCorp, promptly divests sufficient securities such that such 20% or greater
Beneficial Ownership ceases, or (iv) Society, provided that Society only
Beneficially Owns shares of KeyCorp Common Stock consisting solely of one or
more of (A) shares of KeyCorp Common Stock Beneficially Owned pursuant to the
grant or exercise of the KeyCorp Stock Option pursuant to the KeyCorp Stock
Option Agreement, (B) shares of KeyCorp Common Stock (or securities convertible
into, exchangeable into, or exercisable for KeyCorp Common Stock), Beneficially
Owned by Society or its Affiliates or Associates on October 1, 1993, (C) shares
of KeyCorp Common Stock (or securities convertible into, exchangeable into, or
exercisable for KeyCorp Common Stock) acquired by Affiliates or Associates of
Society after the time of such grant which, in the aggregate, amount to less
than 1% of the outstanding shares of KeyCorp Common Stock, or (D) shares of
KeyCorp Common Stock (or securities convertible into, exchangeable into, or
exercisable for KeyCorp Common Stock) which are held by Society or any of its
subsidiaries in trust accounts, managed accounts, and the like or otherwise held
in a fiduciary capacity or in respect of a debt previously contracted, in all
cases in the ordinary course of its banking or trust business. The KeyCorp
Rights Agreement provides that, until the Separation Time, the KeyCorp Rights
will be transferred with and only with the KeyCorp Common Stock. KeyCorp Common
Stock certificates issued after the Record Time but prior to the Separation Time
shall evidence one KeyCorp Right for each share of KeyCorp Common Stock
represented thereby and shall contain a legend incorporating by reference the
terms of the KeyCorp Rights Agreement (as such may be amended from time to
time). Notwithstanding the absence of the aforementioned legend, certificates
evidencing shares of KeyCorp Common Stock outstanding at the Record Time shall
also evidence one KeyCorp Right for each share of KeyCorp Common Stock evidenced
thereby. Promptly following the Separation Time, separate certificates
evidencing the KeyCorp Rights ("Rights Certificates") will be mailed to holders
of record of KeyCorp Common Stock at the Separation Time.
 
     The KeyCorp Rights will not be exercisable until the Business Day (as
defined in the KeyCorp Rights Agreement) following the Separation Time. The
KeyCorp Rights will expire on the earliest of (a) the
 
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Exchange Time (as defined herein), (b) the close of business on October 15,
2003, (c) the date on which the KeyCorp Rights are redeemed as described below,
and (d) upon the merger of KeyCorp into Society Corporation (in any such case,
the "Expiration Time").
 
     The Exercise Price and the number of KeyCorp Rights outstanding, or in
certain circumstances the securities purchasable upon exercise of the KeyCorp
Rights, are subject to adjustment from time to time to prevent dilution in the
event of a KeyCorp Common Stock dividend on, or a subdivision or a combination
into a smaller number of shares of, KeyCorp Common Stock, or the issuance or
distribution of any securities or assets in respect of, in lieu of, or in
exchange for KeyCorp Common Stock.
 
     In the event that prior to the Expiration Time a Flip-in Date occurs,
KeyCorp shall take such action as shall be necessary to ensure and provide that
each KeyCorp Right (other than KeyCorp Rights Beneficially Owned by the
Acquiring Person or any affiliate or associate thereof, which KeyCorp Rights
shall become void) shall constitute the right to purchase, upon the exercise
thereof in accordance with the terms of the Rights Agreement, that number of
shares of KeyCorp Common Stock or Participating Preferred Stock of KeyCorp
having an aggregate Market Price (as defined in the KeyCorp Rights Agreement),
on the date of the public announcement of an Acquiring Person's becoming such
(the "Stock Acquisition Date") that gave rise to the Flip-in Date, equal to
twice the Exercise Price for an amount in cash equal to the then current
Exercise Price. In addition, the Board of Directors of KeyCorp may, at its
option, at any time after a Flip-in Date and prior to the time that an Acquiring
Person becomes the Beneficial Owner of more than 50% of the outstanding shares
of KeyCorp Common Stock at an Exchange Ratio of one or more shares of KeyCorp
Common Stock per KeyCorp Right, appropriately adjusted to reflect any stock
split, stock dividend, or similar transaction occurring after the date of the
Separation Time (the "Exchange Ratio"). Immediately upon such action by the
Board of Directors (the "Exchange Time"), the right to exercise the KeyCorp
Rights will terminate and each KeyCorp Right will thereafter represent only the
right to receive a number of shares of KeyCorp Common Stock equal to the
Exchange Ratio.
 
     Whenever KeyCorp shall become obligated under the preceding paragraph to
issue shares of KeyCorp Common Stock upon exercise of or in exchange for KeyCorp
Rights, KeyCorp, at its option, may substitute therefor shares of Participating
Preferred Stock, at a ratio of one-hundredth of a share of Participating
Preferred Stock for each share of KeyCorp Common Stock so issuable.
 
     In the event that prior to the Expiration Time KeyCorp enters into,
consummates or permits to occur a transaction or series of transactions after
the time an Acquiring Person has become such in which, directly or indirectly,
(a) KeyCorp shall consolidate or merge or participate in a binding share
exchange with any other Person if, at the time of the consolidation, merger, or
share exchange or at the time KeyCorp enters into an agreement with respect to
such consolidation, merger, or share exchange, the Acquiring Person controls the
Board of Directors of KeyCorp and any term of or arrangement concerning the
treatment of shares of capital stock in such merger, consolidation, or share
exchange relating to the Acquiring Person is not identical to the terms and
arrangements relating to other holders of KeyCorp Common Stock or (b) KeyCorp
shall sell or otherwise transfer (or one or more of its subsidiaries shall sell
or otherwise transfer) assets (i) aggregating more than 50% of the assets
(measured by either book value or fair market value) or (ii) generating more
than 50% of the operating income or cash flow, of KeyCorp and its subsidiaries
(taken as a whole) to any other Person (other than KeyCorp or one or more of its
wholly owned subsidiaries) or two or more such Persons which are affiliated or
otherwise acting in concert, if, at the time of such sale or transfer of assets
or at the time KeyCorp (or any such subsidiary) enters into an agreement with
respect to such sale or transfer, the Acquiring Person controls the Board of
Directors of KeyCorp (a "Flip-over Transaction or Event"), KeyCorp shall take
such action as shall be necessary to ensure that, and shall not enter into,
consummate, or permit to occur such Flip-over Transaction or Event unless, the
Acquiring Person or the parent corporation thereof (the "Flip-over Entity"),
shall have entered into a supplemental agreement for the benefit of the holders
of the KeyCorp Rights, providing that, upon consummation or occurrence of the
Flip-over Transaction or Event (A) each Right shall thereafter constitute the
right to purchase from the Flip-over Entity, upon exercise thereof in accordance
with the terms of the KeyCorp Rights Agreement, that number of shares of common
stock of the Flip-over Entity having an aggregate Market Price on the date of
consummation or occurrence of such Flip-over Transaction or Event equal to twice
the Exercise Price for an amount in cash equal to the then current Exercise
Price and (B) the Flip-over Entity shall thereafter be liable for, and shall
assume, by virtue of such
 
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Flip-over Transaction or Event and such supplemental agreement, all the
obligations and duties of KeyCorp pursuant to the KeyCorp Rights Agreement. For
purposes of the foregoing description, the term "Acquiring Person" shall include
any Acquiring Person and its Affiliates counted together as a single Person.
 
     The Board of Directors of KeyCorp may, at its option, at any time prior to
the close of business on the Flip-in Date, redeem all (but not less than all)
the then outstanding KeyCorp Rights at price of $.01 per Right (the "Redemption
Price") as provided in the KeyCorp Rights Agreement. Immediately upon the action
of the Board of Directors of KeyCorp, electing to redeem the KeyCorp Rights,
without any further action and without any notice, the right to exercise the
KeyCorp Rights will terminate and each Right will thereafter represent only the
right to receive the Redemption Price in cash of each Right so held.
 
     The holders of KeyCorp Rights will not, solely by reason of their ownership
of KeyCorp Rights, have any rights as shareholders of KeyCorp, including,
without limitation, the right to vote or to receive dividends.
 
     The KeyCorp Rights will not prevent a takeover of KeyCorp. However, the
KeyCorp Rights may cause substantial dilution to a person or group that acquires
20% or more of the KeyCorp Common Stock unless the KeyCorp Rights are first
redeemed by the Board of Directors of KeyCorp.
 
     As of October 15, 1993 there were 101,696,499 shares of KeyCorp Common
Stock issued and outstanding, 4,526,411 shares reserved for issuance pursuant to
employee benefit plans, and 509,122 shares reserved for issuance under employee
stock purchase and dividend reinvestment plans. As long as the KeyCorp Rights
are attached to the KeyCorp Common Stock, KeyCorp will issue one KeyCorp Right
with each new share of KeyCorp Common Stock so that all such shares will have
KeyCorp Rights attached.
 
     Society Rights.  The following summarizes the principal terms of the
Society Rights Agreement, as amended to date, including the Society Rights
Agreement Amendment, which was entered into in connection with the Merger
Agreement and the Society Option Agreement. If the Merger is consummated, the
Society Rights Agreement will become the New Key Rights Agreement. As
appropriate, all references in this section to Society Rights and Society Common
Stock shall be deemed to refer to New Key Rights and New Key Common Stock as of
and after the Effective Time.
 
     Society Rights have been and will continue to be issued in respect of all
shares of Society Common Stock that are (a) issued after the Record Date but
before the earlier of the expiration or redemption of the Society Rights or the
occurrence of a Triggering Event (as defined herein), (b) issued before the
expiration or redemption of the Society Rights in exchange for KeyCorp Common
Stock upon consummation of the Merger or issued pursuant to the Society Option
Agreement, or (c) issued before the expiration or redemption of the Society
Rights upon the exercise of any employee stock option granted prior to a
Triggering Event.
 
     Each of the Society Rights initially represents the right to purchase one
Society Common Share for $65 (as used in this section, "Purchase Price"). The
Society Rights will become exercisable 20 days after the earlier of (a) a public
announcement that a person or group has become an Acquiring Person (as
hereinafter defined) or (b) the commencement of a tender offer or exchange offer
that would result in a person or group becoming an Acquiring Person. As used in
this section, an "Acquiring Person" means a person or group that beneficially
owns more than 15% of the Society Common Stock outstanding, except that (a) a
person will not be deemed to be an Acquiring Person if the person becomes the
beneficial owner of more than 15% of the Society Common Stock as a result of a
reduction in the number of Society Common Stock outstanding unless, after the
reduction, the person acquires additional Society Common Stock, (b) a person
will not be deemed to be an Acquiring Person if the person becomes the
beneficial owner of more than 15% of the Society Common Stock inadvertently and,
as soon as practicable after learning about such beneficial ownership, divests
enough Society Common Stock so that the person ceases to be the beneficial owner
of more than 15% of the Society Common Stock, and (c) neither KeyCorp nor any of
its affiliates or associates will be deemed to be the beneficial owner of
Society Common Stock by reason of the execution or performance of the Merger
Agreement or the Society Option Agreement so long as neither KeyCorp nor any of
its subsidiaries becomes the beneficial owner of any Society Common Stock other
than (i) pursuant to the Merger Agreement or the Society Option Agreement, (ii)
Society Common Stock beneficially owned by KeyCorp or any of its subsidiaries on
October 1, 1993 or Society Common Stock acquired after October 1, 1993 by any
affiliate or associate of KeyCorp (other than a subsidiary of KeyCorp), (iii)
Society Common Stock of which KeyCorp
 
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<PAGE>   115
 
   
or any of its subsidiaries inadvertently becomes the beneficial owner after
October 1, 1993, provided the number of such shares does not exceed 1/2 of 1% of
the Society Common Stock then outstanding and that KeyCorp or its subsidiary
divests such shares as soon as practicable after learning about such beneficial
ownership, or (iv) Society Common Stock beneficially owned or otherwise held by
KeyCorp or any of its subsidiaries in trust accounts or otherwise acquired in
the ordinary course of their banking and trust business (collectively,
"Permitted Society Stock").
    
 
     Until the Society Rights become exercisable, they will be represented by
the certificate which represents the associated Society Common Stock, and any
transfer of Society Common Stock will also constitute a transfer of the
associated Society Rights. When the Society Rights become exercisable, they will
begin to trade separate and apart from the Society Common Stock. At that time,
separate certificates representing the Society Rights will be mailed to holders.
 
     Twenty days after certain events occur (as used in this section, "Flip-in
Events"), each of the Society Rights will become the right to purchase one share
of Society Common Stock for the then par value per share (now $1.00 per share),
and the Society Rights beneficially owned by the Acquiring Person will become
void. The Flip-in Events are (a) the beneficial ownership by a person or group
of more than 15% of the outstanding Society Common Stock, unless the shares of
Society Common Stock are acquired in a tender or exchange offer for all of the
Society Common Stock at a price and on other terms approved in advance by
Society's Board of Directors, (b) certain self-dealing transactions between
Society and an Acquiring Person, and (c) a reclassification or recapitalization
of Society that has the effect of increasing by more than 1% of the percentage
of Society Common Stock owned by an Acquiring Person; provided that, neither
KeyCorp nor any of its affiliates or associates will be deemed to be the
beneficial owner of Society Common Stock by reason of the execution or
performance of the Merger Agreement or the Society Option Agreement so long as
neither KeyCorp nor any of its subsidiaries becomes the beneficial owner of any
Society Common Stock, other than Permitted Society Stock.
 
     If, after a person or group becomes an Acquiring Person, Society is
acquired in a merger or other business combination or more than 50% of its
assets or earning power is sold, each of the Society Rights will "flip-over" and
become the right to purchase common shares of the acquiror (as used in this
section, "Flip-over Event"). The holder of each Society Right would, upon the
occurrence of a Flip-over Event, be entitled to purchase for the then par value
of a share of Society Common Stock (now $1.00) the number of common shares of
the acquiror having a market price equal to the market price of the Society
Common Stock.
 
     The Purchase Price and/or the number of shares of Society Common Stock (or
common shares of an acquiror) to be purchased upon exercise of the Society
Rights are subject to adjustment from time to time to prevent dilution in the
event Society (a) declares a dividend on the Society Common Stock payable in
Society Common Stock, (b) subdivides or combines the Society Common Stock in a
reclassification of the Society Common Stock, or (c) makes a distribution to all
holders of Society Common Stock of debt securities, subscription rights,
warrants, or other assets (except regular cash dividends). With certain
exceptions, no adjustment will be required until a cumulative adjustment of at
least 1% is required. Society is not required to issue fractional shares and,
instead, may make cash payment based on the market price of Society Common
Stock.
 
     Society's Board of Directors may redeem the Society Rights for  1/2c each
(as used in this section, "Redemption Price") at any time before a "Triggering
Event" (which is defined as the occurrence of a Flip-over Event or the 20th day
after a Flip-in Event). However, the rights may not be redeemed while there is
an Acquiring Person unless (a) Continuing Directors (as defined herein)
constitute a majority of the Board of Directors and (b) a majority of the
Continuing Directors approves the redemption. "Continuing Directors" are defined
as directors who were in office prior to a person or group becoming an Acquiring
Person or whose election to office was recommended by a majority of the
Continuing Directors and who are not affiliated with the Acquiring Person. The
Society Rights will expire on September 12, 1999, unless they are redeemed
before that date.
 
     Until the Society Rights are exercised, the holders of the Society Rights,
as such, will have no rights as shareholders of Society, including the right to
vote or receive dividends.
 
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<PAGE>   116
 
     The provisions of the Society Rights Agreement may be amended by Society's
Board of Directors to cure any ambiguity or correct any defect or inconsistency
or, prior to a Triggering Event, to make other changes that the Board of
Directors deems to be desirable and not adverse to the interests of Society and
its shareholders.
 
     The Society Rights will not prevent a takeover of Society. However, the
Society Rights may cause substantial dilution to a person or group that acquires
15% or more of the Society Common Stock unless the Society Rights are first
redeemed by the Board of Directors of Society.
 
     Copies of the Rights Agreement, dated as of August 25, 1989, between
Society and First Chicago Trust Company of New York, as rights agent, the First
Amendment to Rights Agreement, dated as of February 21, 1991, the Second
Amendment to Rights Agreement, dated as of September 12, 1991, and the Society
Rights Agreement Amendment, are included as exhibits to a Registration Statement
on Form 8-A filed by Society with the SEC on July 31, 1992, and on amendment to
Form 8-A on Form 8-A/A filed by Society with the SEC on October 13, 1993. The
foregoing description of the Society Rights does not purport to be complete and
is qualified in its entirety by reference to the Society Rights Agreement.
 
SPECIAL MEETINGS OF SHAREHOLDERS
 
     A special meeting of KeyCorp's shareholders may be called by a majority of
the KeyCorp Board or by the Chairman of the Board or the President, and must be
called by the Secretary or an Assistant Secretary at the written request of the
holders of record of at least 75% of the outstanding shares entitled to vote.
 
   
     Ohio law provides that persons who hold 25% of all shares outstanding and
entitled to vote at a special meeting may call a special meeting of shareholders
unless the corporation's articles or regulations specify a smaller or larger
proportion (but not in excess of 50%). The Society Regulations provide that a
special meeting of Society's shareholders may be called by (a) the Chairman of
the Board, (b) the President, or in the case of the President's absence, death,
or disability, the Vice President authorized to exercise the authority of the
President, (c) the Board of Directors by action at a meeting, or by a majority
of the Board of Directors acting without a meeting, or, (d) by persons who hold
50% of all shares outstanding and entitled to vote at special meetings.
    
 
     The New Key Regulations will provide that a special meeting of shareholders
of New Key may be called in the same manner as provided in the Society
Regulations.
 
AMENDMENT OF CHARTER DOCUMENTS
 
     Certificate of Incorporation/Articles of Incorporation.  Under New York
law, the approval of a majority of the outstanding voting shares of a
corporation is required to amend its certificate of incorporation (which
amendment may only be voted on by the shareholders after approval by the Board
of Directors), subject to a class vote in certain instances. The KeyCorp
Certificate of Incorporation provides that the provisions therein concerning the
number of directors that shall constitute the entire board and the
classification and removal of directors may be amended only by the affirmative
vote of the holders of 80% or more of the then outstanding capital stock of
KeyCorp entitled to vote generally in the election of directors.
 
     Ohio law provides that generally at least two-thirds of the voting power of
a corporation, subject to a class vote in certain instances, is required to
approve any amendment to the articles of incorporation, except as otherwise
provided therein. The Society Articles of Incorporation require that a majority
of the voting power of Society approve any such amendment, subject to a class
vote in those instances required by law and subject to the fair price and
supermajority vote provisions contained therein. Under Ohio law, the holders of
shares of a particular class, and in the circumstances outlined in sections (e),
(f), and (g) below, the holders of shares of every class, are entitled to vote
as a class on the adoption of an amendment to the articles of incorporation that
does any of the following: (a) increases or decreases the par value of the
issued shares of the particular class, (b) changes issued shares of the
particular class, whether with or without par value, into a lesser number of
shares of the same class or into the same or different number of shares of any
other class, with or without par value, theretofore or then authorized, (c)
changes the express terms of issued shares of any class senior to the particular
class in any manner substantially prejudicial to the holders of the particular
class, (d) authorizes
 
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<PAGE>   117
 
shares of another class that are convertible into, or authorizes the conversion
of shares of another class into, shares of the particular class, or authorizes
the directors to fix or alter conversion rights of shares of another class that
are convertible into shares of the particular class, (e) provides, in the case
of any amendment described in sections (a) or (b) above, that the stated capital
of the corporation shall be reduced or eliminated as a result of the amendment,
or provides, in the case of an amendment described in section (d) above, that
the stated capital of the corporation shall be reduced or eliminated upon the
exercise of such conversion rights, provided that any such reduction or
elimination is consistent with certain provisions of Ohio General Corporation
Law regarding stated capital, (f) changes substantially the purposes of the
corporation, or provides that thereafter an amendment to the articles may be
adopted that changes substantially the purposes of the corporation; or (g)
changes the corporation into a nonprofit corporation. See "COMPARISON OF CERTAIN
RIGHTS OF HOLDERS OF CAPITAL STOCK OF KEYCORP, SOCIETY, AND NEW KEY -- Voting
Rights."
 
     The New Key Articles of Incorporation will require the approval of the
holders of shares entitling them to exercise a majority of the voting power of
New Key to adopt any amendment to the articles of incorporation, subject to (i)
a class vote in certain instances and (ii) any greater vote required to approve
a Chapter 1704. Transaction.
 
     By-laws/Regulations.  The KeyCorp Bylaws provide that the KeyCorp Bylaws
may be adopted, amended, or repealed at any meeting of shareholders, notice of
which shall have referred to the proposed action, by a majority of the votes
cast by the shareholders of KeyCorp at the time entitled to vote in the election
of any directors, or at any meeting of the KeyCorp Board of Directors, ten days'
notice of which shall have referred to the proposed action, by the vote of
three-fourths of the entire KeyCorp Board of Directors; provided, however, that
if any bylaw regulating an impending election of directors is adopted, amended,
or repealed by the KeyCorp Board of Directors, there shall be set forth in the
notice of the next meeting of shareholders for the election of directors the
bylaw so adopted, amended, or repealed, together with a concise statement of the
changes made.
 
     Directors may not amend regulations of an Ohio corporation. The Society
Regulations provide for amendment by shareholders holding a majority of the
voting power at a meeting, but require that all amendments by written consent of
the shareholders without a meeting must be approved unanimously by the
shareholders entitled to vote thereon. In addition, any amendments regarding the
calling of special meetings of shareholders, nomination of directors,
classification of directors, removal of directors, or amendment to the
Regulations, which are not recommended by at least two-thirds of the directors,
must be approved by shareholders holding at least 75% of the voting power of
Society at a meeting.
 
     Because New Key will be an Ohio corporation, the directors of New Key will
not be able to amend the New Key Regulations. The New Key Regulations will
provide that through December 31, 1998, the provisions of the New Key
Regulations relating to (a) the number, classification, and term of office of
directors, (b) Chairman of the Board, Chairman of the Executive Committee, and
chairmen of other committees, (c) nominations and removal of directors and
filling vacancies in the Board of Directors, (d) the Nominating Committee, (e)
Chief Executive Officer and President through December 31, 1998, (f) removal of
officers, (g) the headquarters of New Key, and (h) amendments of the New Key
Regulations may only be amended, repealed, or altered (i) by the affirmative
vote of the holders of shares entitling them to exercise three-quarters of the
voting power of New Key on such proposal, (ii) if such amendment, repeal, or
alteration is recommended by three-quarters of the entire authorized Board of
Directors of New Key, by the affirmative vote of the holders of shares entitling
them to exercise a majority of the voting power of New Key on such proposal, or
(iii) without a meeting, by the written consent of the holders of shares
entitling them to exercise 100% of the voting power of New Key on such proposal.
The New Key Regulations will also provide that until December 31, 1998, any New
Key Regulations, other than those New Key Regulations specifically listed in the
immediately preceding sentence, and, after December 31, 1998, any New Key
Regulations, may be adopted, amended, repealed, or altered (x) by the
affirmative vote of the holders of shares entitling them to exercise
three-quarters of the voting power of New Key on such proposal, (y) if such
adoption, amendment, repeal, or alteration is recommended by two-thirds of the
entire authorized Board of Directors of New Key, by the affirmative vote of the
holders of shares entitling them to exercise a majority of the voting power of
New
 
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<PAGE>   118
 
Key on such proposal, or (z) without a meeting, by the written consent of the
holders of shares entitling them to exercise 100% of the voting power of New Key
on such proposal.
 
DIRECTORS
 
     Number; Classification.  Both the KeyCorp Certificate of Incorporation and
the KeyCorp By-laws provide that the number of directors of KeyCorp shall be
between 12 and 24 directors, as fixed, from time to time, by majority vote of
the entire board. The Board of Directors is divided into three classes, each
serving three-year terms, so that approximately one-third of the directors of
KeyCorp are elected at each annual meeting of the shareholders of KeyCorp.
 
     The Society Regulations provide that the number of directors shall be
between 25 and 31 directors, divided into three classes. The Board of Directors
or shareholders of Society may from time to time change the size of the Board of
Directors within the foregoing range. The respective terms of the three classes
of directors are staggered so that at any time the term of a class will expire
at the next annual meeting of shareholders. After the expiration date for each
class, members of that class will be elected to three-year terms.
 
     The New Key Regulations will provide that the number of directors shall be
between 20 and 24, divided into three classes. The Board of Directors of New Key
may change the size of the Board of Directors within the foregoing range,
subject to certain limitations described under "TERMS OF THE MERGER -- Board of
Directors and Chief Executive Officers of New Key through December 31, 1988," by
the affirmative vote of two-thirds of the entire authorized Board. The
shareholders of New Key may change the size of the Board of Directors of New Key
within the foregoing range, subject to certain limitations described under
"TERMS OF THE MERGER -- Board of Directors and Chief Executive Officers of New
Key through December 31, 1998," at a meeting of the shareholders of New Key
called for the purpose of electing directors (i) by the affirmative vote of the
holders of shares entitling them to exercise three-quarters of the voting power
of New Key represented at the meeting and entitled to elect directors or (ii) if
the proposed change in the number of directors is recommended by two-thirds of
the entire authorized Board of Directors of New Key, by the affirmative vote of
the holders of shares entitling them to exercise a majority of the voting power
of New Key represented at the meeting and entitled to elect directors. In
addition, the number of directors of New Key is subject to automatic increase by
two during certain periods when dividends payable on any class or series of
preferred stock of New Key are in arrears for six quarterly dividend payment
periods, as set forth in the New Key Articles of Incorporation and/or the
express terms of the preferred stock of New Key. For a discussion regarding the
initial composition of the New Key Board of Directors, see "TERMS OF THE MERGER
- -- Board of Directors and Chief Executive Officers of New Key through December
31, 1998."
 
     The effect of New Key having a classified Board of Directors is that only
approximately one-third of the members of the Board will be elected each year
and, as a result, two annual meetings will be required for New Key's
shareholders to change a majority of the members constituting the Board of
Directors.
 
     Nominations of Candidates for Election as Directors.  Neither the KeyCorp
Certificate of Incorporation nor the KeyCorp Bylaws provide a specific procedure
for nominating candidates for election as directors.
 
     The Society Regulations provide that nominations of persons for election as
directors of Society may be made at a meeting of shareholders by or at the
direction of the Board of Directors by any nominating committee or person
appointed by the Board of Directors, or by any shareholder of Society entitled
to vote for the election of directors at the meeting. Such nominations, other
than those made by or at the direction of the Board of Directors, must comply
with specific notice provisions in the Society Regulations, including that the
notice be in writing and timely delivered to the Secretary of Society. To be
timely, a Society shareholder's notice must be delivered to or mailed and
received at the principal executive offices of Society not less than 60 days nor
more than 90 days prior to the meeting. However, if less than 75 days' notice to
the shareholders or prior public disclosure of the date of the meeting is given
or made, notice by the shareholder to be timely must be so received not later
than the close of business on the fifteenth day following the earlier of the day
on which such notice of the date of the meeting was mailed or such public
disclosure was made. The Society Regulations also require shareholders to give
specific information about the nominee and the shareholder giving the notice.
 
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<PAGE>   119
 
     The New Key Regulations will establish a specific procedure for director
nominations made by the Board of Directors of New Key. Through December 31,
1998, the Board of Directors of New Key may make director nominations in
accordance with the procedure described in "TERMS OF THE MERGER -- Board of
Directors and Chief Executive Officers of New Key through December 31, 1998."
After December 31, 1998, nominations for the election of directors may be made
by the affirmative vote of two-thirds of the entire authorized Board of
Directors of New Key. The New Key Regulations treat shareholder nominations in
the same manner as the Society Regulations, except that the specific information
required to be given in the shareholders notice regarding the nominee and the
shareholder giving the notice is somewhat more detailed than the specific
information required in the Society Regulations. See "AMENDED AND RESTATED
ARTICLES OF INCORPORATION AND REGULATIONS OF NEW KEY -- Regulations of New Key
- -- Nominations for Director" and "-- Advance Notice of Shareholder Proposals and
Nominations."
 
     Removal of Directors.  The KeyCorp Certificate of Incorporation provides
that directors of KeyCorp may be removed from office, but only for cause and by
the affirmative vote of a majority of the outstanding voting shares or 75% of
the entire Board of Directors of KeyCorp. Society's Regulations provide that the
Board of Directors may remove any director in cases of judicial declaration of
mental unsoundness, adjudicated bankruptcy, or the failure to accept election as
a director, either in writing, or by acting at a meeting of directors. Society's
shareholders may remove any or all directors without cause by a vote of at least
75% of their voting power.
 
     The New Key Regulations will provide for removal of directors in the same
manner as the Society Regulations. For a complete discussion of the procedure
for removing directors of New Key, see "AMENDED AND RESTATED ARTICLES OF
INCORPORATION AND REGULATIONS OF NEW KEY -- Regulations of New Key -- Removal of
Directors and Filling Vacancies." Through December 31, 1998, however, the Board
of Directors of New Key may only fill vacancies (however caused) in accordance
with the description in "TERMS OF THE MERGER -- Board of Directors and Chief
Executive Officers of New Key through December 31, 1998 -- Committees of the
Board of Directors of New Key," and "-- Interests of Certain Persons in the
Merger -- Management after the Merger."
 
DIRECTOR LIABILITY AND INDEMNIFICATION
 
     Under the New York Business Corporation Law, a corporation may indemnify
officers and directors against judgments, fines, settlements, and reasonable
expenses if the officer or director acted in good faith for a purpose he
reasonably believed to be in the best interests of the corporation and if, in
criminal actions, he had no reasonable cause to believe that his conduct was
unlawful, except that with respect to actions by or in right of the corporation,
no indemnification for settlements or matters as to which the officer or
director has been adjudged liable may be made without court approval.
 
     Indemnification is mandatory if the officer or director is successful, on
the merits or otherwise, in the proceeding. The foregoing statutory rights are
not exclusive, and indemnification may be provided under the certificate or
by-laws or, if such documents so provide, under a board or shareholder
resolution or an agreement, but no indemnification may be made if a final
adjudication adverse to the officer or director establishes that his acts were
committed in bad faith or were the result of active and deliberate dishonesty
and were material to the cause of action so adjudicated, or that he personally
gained in fact a financial profit or other advantage to which he was not legally
entitled.
 
     The KeyCorp By-laws provide that each director and officer of KeyCorp,
whether or not then in office, and any person whose testator or intestate was
such a director or officer, shall be indemnified by KeyCorp for the defense of,
or in connection with, civil or criminal actions in accordance with and to the
fullest extent permitted by applicable law.
 
     The New York Business Corporation Law also permits the certificate of
incorporation to eliminate or limit the personal liability of directors to the
corporation or its shareholders for any breach of duty in such capacity,
provided that no such provision shall eliminate or limit the liability of any
director if a final adjudication adverse to him establishes that his actions
were in bad faith or involved intentional misconduct or a knowing violation of
law or that he personally gained in fact a financial profit or other advantage
to which he was not legally entitled or that his acts violated the statutory
provisions imposing liability on directors in certain instances for the
declaration of dividends, repurchase of shares, distribution of assets to
shareholders or making of loans to directors.
 
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<PAGE>   120
 
     The KeyCorp Certificate of Incorporation provides that no director shall be
liable to KeyCorp or any of its shareholders for any breach of duty in such
capacity except to the extent the effect of such provision is limited by law.
 
     Under Ohio law, Ohio corporations are authorized to indemnify directors,
officers, employees, and agents within prescribed limits and must indemnify them
under certain circumstances. Ohio law does not provide statutory authorization
for a corporation to indemnify directors, officers, employees, and agents for
settlements, fines, or judgments in the context of derivative suits. However, it
provides that directors (but not officers, employees, and agents) are entitled
to mandatory advancement of expenses, including attorneys' fees, incurred in
defending any action, including derivative actions, brought against the
director, provided the director agrees to cooperate with the corporation
concerning the matter and to repay the amount advanced if it is proved by clear
and convincing evidence that his act or failure to act was done with deliberate
intent to cause injury to the corporation or with reckless disregard for the
corporation's best interests.
 
     Ohio law does not authorize payment of judgments to a director, officer,
employee, or agent after a finding of negligence or misconduct in a derivative
suit absent a court order. Indemnification is required, however, to the extent
such person succeeds on the merits. In all other cases, if a director, officer,
employee, or agent acted in good faith and in a manner he reasonably believed to
be in or not opposed to the best interests of the corporation, indemnification
is discretionary except as otherwise provided by a corporation's articles, code
of regulations, or by contract except with respect to the advancement of
expenses of directors.
 
     Under Ohio law, a director is not liable for monetary damages unless it is
proved by clear and convincing evidence that his action or failure to act was
undertaken with deliberate intent to cause injury to the corporation or with
reckless disregard for the best interests of the corporation. There is, however,
no comparable provision limiting the liability of officers, employees, or agents
of a corporation. The statutory right to indemnification is not exclusive in
Ohio, and Ohio corporations may, among other things, procure insurance for such
persons.
 
     The Society Regulations provide that Society shall indemnify to the fullest
extent permitted by law any person made or threatened to be made a party to any
action, suit, or proceeding by reason of the fact that he is or was a director,
officer, or employee of Society or of any other bank, corporation, partnership,
trust, or other enterprise for which he was serving as a director, officer, or
employee at the request of Society.
 
     The New Key Regulations will contain identical indemnification provisions
to those in the Society Regulations.
 
DIVIDENDS
 
     An Ohio corporation may pay dividends out of surplus, however created, but
must notify its shareholders if a dividend is paid out of capital surplus. A New
York corporation may pay dividends out of surplus only, so that the net assets
of the corporation remaining after such payment will be at least equal to the
amount of the corporation's stated capital. Under New York law, if a dividend is
paid from sources other than earned surplus, the corporation must give written
notice to its shareholders.
 
     The terms of certain of Society's long-term debt agreements provide for
restrictions on the payment of cash dividends but have not affected Society's
ability to declare and pay dividends on outstanding shares of Society Common
Stock. Specifically, Society's 8.33% Series A ESOP Notes due 1996 and 8.48%
Series B ESOP Notes, due 2001, prohibit Society from having a consolidated
funded debt ratio greater than 50%, a consolidated senior funded debt ratio
greater than 40%, or a priority debt ratio greater than 30%. Under the most
restrictive term, $516 million were unrestricted as to the payment of cash
dividends at September 30, 1993. These dividend restrictions will remain in
effect after the Merger.
 
     The Boards of Directors of each of KeyCorp and Society review the
declaration and payment of dividends by KeyCorp and Society, respectively, on a
quarterly basis in light of cash needs, general business conditions,
availability of dividends from subsidiaries, and regulatory policies. There can,
of course, be no assurance as to declaration or the amount of future dividends
on Society Common Stock or the KeyCorp Common Stock.
 
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<PAGE>   121
 
     The dividend policy of New Key will be established by its Board of
Directors. While the New Key Board of Directors may consider the dividend policy
of Society and KeyCorp prior to the Merger, no assurance can be given as to the
declaration or amount of future dividends of New Key.
 
     Regulations restricting the ability of KeyCorp's and Society's subsidiary
banks and other subsidiaries to pay dividends to New Key after the Effective
Time are set forth in "CERTAIN REGULATORY CONSIDERATIONS -- Dividend
Restrictions."
 
REPURCHASES
 
     Under New York law, a corporation may repurchase or redeem its shares
except when the corporation is insolvent or would thereby be made insolvent.
 
     Under Ohio law, a corporation may by action of its board of directors
purchase or redeem its own shares if authorized to do so by its articles of
incorporation or under certain other circumstances, but may not do so if
immediately thereafter its assets would be less than its liabilities plus its
stated capital, if any, or if the corporation is insolvent or would be rendered
insolvent by such a purchase or redemption. Society's Amended Articles of
Incorporation permit its board of directors, and the New Key Articles of
Incorporation will permit the New Key Board of Directors, to authorize the
repurchase or redemption of shares to the extent permitted by law.
 
NO MATERIAL DIFFERENCES IN RIGHTS OF HOLDERS OF NEW KEY PREFERRED STOCK AND
KEYCORP PREFERRED STOCK
 
     The terms, designations, preferences, limitations, privileges, and relative
rights of New Key Preferred Stock and KeyCorp Preferred Stock are identical
except for certain non-material technical or format changes to the provisions
included in the terms of the New Key Preferred Stock. See "DESCRIPTION OF NEW
KEY CAPITAL STOCK -- New Key Preferred Stock and New Key Depositary Shares."
 
INSPECTION RIGHTS
 
   
     Both New York law and Ohio law grant certain shareholders the right to
inspect certain records of the corporation. New York law limits the right of a
shareholder to inspect certain books and records of the corporation to persons
who (a) have been shareholders in the corporation for at least six months
immediately preceding the demand to inspect the corporation's records or (b)
hold at least 5% of the corporation's outstanding shares of any class. Under
Ohio law, any shareholder is entitled to inspect the books and records of the
corporation upon written demand provided such inspection is conducted at a
reasonable time and made for any reasonable and proper purpose.
    
 
                             CERTAIN LEGAL MATTERS
 
   
     The validity of the New Key Common Stock, and the New Key Preferred Stock
to be issued by New Key under the Merger Agreement and certain tax matters
relating to the Merger will be passed upon by Society's counsel, Thompson, Hine
and Flory, 1100 National City Bank Building, Cleveland, Ohio 44114. Attorneys at
Thompson, Hine and Flory owned approximately 62,000 shares of Society Common
Stock on November 1, 1993. Certain tax matters relating to the Merger will be
passed upon for KeyCorp by its counsel, Sullivan & Cromwell, 125 Broad Street,
New York, New York 10004.
    
 
                                    EXPERTS
 
     The consolidated financial statements of KeyCorp included in KeyCorp's
Report on Form 8-K dated March 18, 1993, as amended by Form 8, dated May 20,
1993, have been audited by Ernst & Young, independent auditors, as set forth in
their report thereon included therein, and incorporated herein by reference. The
consolidated financial statements of Society for the year ended December 31,
1992, appearing in Society's Annual Report (Form 10-K), have been audited by
Ernst & Young, independent auditors, as set forth in their report thereon
included therein, and incorporated herein by reference. Such consolidated
financial statements of KeyCorp and Society are incorporated herein by reference
in reliance upon the reports
 
                                       117
<PAGE>   122
 
of Ernst & Young, independent auditors, given upon the authority of such firm as
experts in accounting and auditing.
 
     Representatives of Ernst & Young, principal accountants for KeyCorp and
Society for the current year and for the fiscal year ended December 31, 1992,
are expected to be present at the KeyCorp Meeting and the Society Meeting. Such
representatives will have the opportunity to make a statement if they desire to
do so and are expected to be available to respond to appropriate questions.
 
                             SHAREHOLDER PROPOSALS
 
     If the Merger is consummated before the end of the first quarter of 1994,
it is currently anticipated that New Key will hold its 1994 annual meeting of
shareholders on or about May 19, 1994. New Key's Regulations require that notice
of a nomination by shareholders of individuals for election to the Board of
Directors of New Key, whether or not proposed to be included in New Key's proxy
statement, be given to the Secretary of New Key by March 18, 1994, assuming that
the 1994 annual meeting is held on May 19, 1994, and that the notice include
certain information relating to the nominee and the nominating shareholder.
 
     If the Merger is not consummated within the time period currently
contemplated, the regular 1994 annual meetings of both KeyCorp and Society may
be held at or about the regularly scheduled meeting dates or postponed,
depending on the then anticipated schedule for consummating the Merger. If the
Merger is delayed and the annual meetings of KeyCorp and Society are not
postponed, shareholder proposals intended to be presented at the 1993 annual
meeting of KeyCorp should have been submitted to KeyCorp by November 18, 1993,
and shareholder proposals intended to be presented at the 1994 annual meeting of
Society should have been submitted to Society by December 13, 1993, in order to
have been considered for inclusion in the proxy materials for the respective
meetings. If the Merger and the New Key annual meeting are delayed, shareholder
proposals intended to be presented at that meeting must be submitted a
reasonable time before the solicitation of proxies for that meeting is made for
consideration by New Key for possible inclusion in the proxy materials for that
meeting.
 
                                       118
<PAGE>   123
 
                                                                     APPENDIX I.
<PAGE>   124
 
                                                                      APPENDIX I
 
                          AGREEMENT AND PLAN OF MERGER
                                       OF
                   KEYCORP INTO AND WITH SOCIETY CORPORATION
 
     This AGREEMENT AND PLAN OF MERGER AGREEMENT ("Merger Agreement") is made
and entered into as of the 1st day of October, 1993, by and between KEYCORP, a
corporation organized and existing under the laws of the State of New York
("KeyCorp"), and SOCIETY CORPORATION, a corporation organized and existing under
the laws of the State of Ohio ("Society"). KeyCorp and Society are sometimes
collectively referred to as the "Constituent Corporations".
 
     This Merger Agreement is being entered into simultaneously with and
pursuant to a Supplemental Agreement to Agreement and Plan of Merger
("Supplemental Agreement"), dated as of the 1st day of October, 1993, by and
between KeyCorp and Society. The Supplemental Agreement also sets forth certain
representations, warranties, and covenants in connection with the merger
provided for herein.
 
     In consideration of the above and the mutual covenants and agreements set
forth herein, the parties agree as follows:
 
                                  ARTICLE ONE
 
                                  DEFINITIONS
 
     Except as otherwise provided herein, the capitalized terms set forth below
shall have the following meanings:
 
     1.1 "EXCHANGE AGENT" shall mean the exchange agent selected by KeyCorp and
Society.
 
     1.2 "INTERNAL REVENUE CODE" shall mean the Internal Revenue Code of 1986,
as amended.
 
     1.3 "KEYCORP CAPITAL STOCK" shall mean, collectively, the KeyCorp Common
Stock and the KeyCorp Series B Preferred Stock.
 
     1.4 "KEYCORP COMMON STOCK" shall mean the Common Shares, par value $5.00
per share, of KeyCorp.
 
     1.5 "KEYCORP COMPANIES" shall mean, collectively, KeyCorp and all KeyCorp
Subsidiaries.
 
     1.6 "KEYCORP EXCHANGE RATIO" shall mean the fraction of a share of
Surviving Corporation Common Stock applied to convert shares of KeyCorp Common
Stock into shares of Surviving Corporation Common Stock as specified in Section
4.1 of this Merger Agreement.
 
     1.7 "KEYCORP SERIES B PREFERRED STOCK" shall mean the 10% Cumulative
Preferred Stock, Series B, par value $5.00 per share, of KeyCorp.
 
     1.8 "KEYCORP STOCK OPTION PLANS" shall mean the following employee and
director stock option and stock appreciation rights plans of KeyCorp: (i)
KeyCorp 1984 Stock Option Plan, (ii) KeyCorp 1987 Directors' Stock Option Plan,
(iii) KeyCorp 1988 Stock Option Plan, and (iv) any additional employee stock
option plans and stock appreciation rights plans assumed by KeyCorp in
connection with any acquisition transaction involving KeyCorp and permitted
under Section 7.1(d) of the Supplemental Agreement, in each case as amended.
 
     1.9 "KEYCORP SUBSIDIARIES" shall mean the Subsidiaries of KeyCorp, which
shall include the KeyCorp Subsidiaries described in Section 5.3 of the
Supplemental Agreement and any other corporation, bank, savings bank,
association, or other entity acquired as a Subsidiary of KeyCorp in the future.
 
     1.10 "MERGER" shall mean the merger of KeyCorp into and with Society, as
provided in the Supplemental Agreement and Section 2.1 of this Merger Agreement.
 
     1.11 "NYBCL" shall mean the New York Business Corporation Law.
 
                                        1
<PAGE>   125
 
     1.12 "NEW YORK CERTIFICATE OF MERGER" shall mean the certificate of merger
providing for the Merger which is to be filed by the Surviving Corporation with
the New York Department of State, signed and verified on behalf of each
Constituent Corporation and containing the information and statements prescribed
by Section 907(e) of the NYBCL.
 
     1.13 "OGCL" shall mean the Ohio General Corporation Law.
 
     1.14 "OHIO CERTIFICATE OF MERGER" shall mean the certificate of merger
providing for the Merger which is to be filed with the Ohio Secretary of State,
signed on behalf of each Constituent Corporation and containing the information
and attachments prescribed by Section 1701.81 of the OGCL.
 
     1.15 "SOCIETY COMMON STOCK" shall mean the Common Shares, with a par value
of $1 each, of Society.
 
     1.16 "SOCIETY COMPANIES" shall mean, collectively, Society and all Society
Subsidiaries.
 
     1.17 "SOCIETY STOCK OPTION PLANS" shall mean the following employee stock
option and stock appreciation rights plans of Society: (i) Society Corporation
1977 Stock Option Plan, (ii) Society Corporation 1984 Stock Option Plan, (iii)
Society Corporation 1977 Stock Appreciation Rights Plan, (iv) Society
Corporation 1984 Stock Appreciation Rights Plan, (v) Centran Corporation 1984
Stock Option Plan, (vi) Society Corporation 1988 Stock Option Plan, (vii)
Society Corporation 1988 Stock Appreciation Rights Plan, (viii) 1987 Stock
Option Plan of Trustcorp, Inc., (ix) 1981 Incentive Stock Option Plan of Toledo
Trustcorp, Inc., (x) Society Corporation 1991 Equity Compensation Plan, (xi)
1985 St. Joseph Bancorporation, Inc. Master Stock Compensation Plan, (xii)
Ameritrust Stock Option Plan (formerly Ameritrust Long-Term Incentive Plan), and
(xiii) any additional employee stock option plans and stock appreciation rights
plans assumed by Society in connection with any acquisition transaction
involving Society and permitted under Section 7.1(d) of the Supplemental
Agreement, in each case as amended.
 
     1.18 "SOCIETY SUBSIDIARIES" shall mean the Subsidiaries of Society, which
shall include the Society Subsidiaries described in Section 6.3 of the
Supplemental Agreement and any other corporation, bank, savings bank,
association, or other entity acquired as a Subsidiary of Society in the future.
 
     1.19 "STOCK OPTION AGREEMENTS" shall mean the Society Stock Option
Agreement to be dated October 2, 1993 between Society and KeyCorp and the
KeyCorp Stock Option Agreement to be dated October 2, 1993 between KeyCorp and
Society.
 
     1.20 "SUBSIDIARIES" shall mean all those corporations, banks, savings
banks, associations, and other entities of which the entity in question owns or
controls 5% or more of the outstanding equity securities either directly or
through an unbroken chain of entities as to each of which 5% or more of the
outstanding equity securities is owned directly or indirectly by its parent;
provided, however, there shall not be included any such entity acquired in good
faith through foreclosure, or any such entity the equity securities of which are
owned or controlled in a bona fide fiduciary capacity, through a small business
investment corporation or otherwise as an investment by any entity that invests
in unaffiliated companies in the ordinary course of business.
 
     1.21 "SUPPLEMENTAL AGREEMENT" shall mean the Supplemental Agreement to
Agreement and Plan of Merger, dated as of October 1, 1993, by and between
KeyCorp and Society, including as from time to time amended pursuant to its
terms.
 
     1.22 "SURVIVING CORPORATION CAPITAL STOCK" shall mean, collectively, the
Surviving Corporation Common Stock and the Surviving Corporation Class A
Preferred Stock.
 
     1.23 "SURVIVING CORPORATION COMMON STOCK" shall mean the Common Stock, with
a par value of $1 each, of the Surviving Corporation.
 
     1.24 "SURVIVING CORPORATION RIGHTS PLAN" shall mean the Rights Agreement,
dated August 25, 1989, between Society and First Chicago Trust Company of New
York, as rights agent ("FCTCNY"), as modified and amended by a First Amendment
to Rights Agreement, dated February 21, 1991, between Society and FCTCNY, by a
Second Amendment to Rights Agreement, dated as of September 12, 1991, between
Society and FCTCNY, by letter of resignation of FCTCNY dated June 26, 1992, and
letter of Society, dated June 26, 1992, to Ameritrust Company National
Association (now Society National Bank by
 
                                        2
<PAGE>   126
 
merger) appointing Ameritrust Company National Association as rights agent, and
a Third Amendment to Rights Plan, dated October 1, 1993 between Society and
Society National Bank as rights agent.
 
     1.25 "SURVIVING CORPORATION CLASS A PREFERRED STOCK" shall mean the 10%
Cumulative Preferred Stock, Class A, par value $5.00 per share, of the Surviving
Corporation.
 
                                  ARTICLE TWO
 
                                TERMS OF MERGER
 
     2.1 MERGER. Subject to the terms and conditions of the Supplemental
Agreement and this Merger Agreement, at the Effective Time (as hereinafter
defined), KeyCorp will be merged into and with Society in accordance with the
provisions of Section 907 of the NYBCL and Section 1701.78 of the OGCL (the
"Merger"). Society shall be the surviving corporation of the Merger ("Surviving
Corporation") and shall continue to be governed by the laws of the State of
Ohio. The name of the Surviving Corporation shall be Key Bancshares Inc.
 
     2.2 EFFECTIVE TIME. The Merger shall become effective at the time and date
which is the later of the time at which (i) the New York Certificate of Merger
is accepted for filing with the New York Department of State (or such other time
as is specified therein) and (ii) the Ohio Certificate of Merger is filed with
the Secretary of State of the State of Ohio (or such other time as if specified
therein) (the "Effective Time"). The Surviving Corporation shall thereafter
file, or cause to be filed, the New York Certificate of Merger certified by the
New York Department of State in the office of the Clerk of Albany County and in
the office of the official who is the recording officer of each other county in
the State of New York in which real property of KeyCorp is situated.
 
     2.3 SURVIVING CORPORATION ARTICLES OF INCORPORATION. The Amended and
Restated Articles of Incorporation of Society as in effect immediately prior to
the Effective Time shall be amended and restated in their entirety as of the
Effective Time so as to be and read as set forth in Exhibit I to this Merger
Agreement (which is incorporated herein), and such Articles of Incorporation, as
so amended and restated, shall constitute the articles of the Surviving
Corporation within the meaning of Division (D) of Section 1701.01 of the OGCL
and may be certified separately and apart from this Merger Agreement as the
articles of the Surviving Corporation from and after the Effective Time until
further amended thereafter as provided therein.
 
     2.4 REGULATIONS. The Regulations of Society as in effect immediately prior
to the Effective Time shall be amended and restated in their entirety as of the
Effective Time so as to be and read as set forth in Exhibit II to this Merger
Agreement (which is incorporated herein), and such Regulations, as so amended
and restated, shall constitute the regulations of the Surviving Corporation
within the meaning of Division (A) of Section 1701.11 of the OGCL and may be
certified separate and apart from this Merger Agreement as the regulations of
the Surviving Corporation from and after the Effective Time until further
amended thereafter as provided therein.
 
     2.5 DIRECTORS. In accordance with the Regulations of the Surviving
Corporation, the number of members of the Board of Directors of the Surviving
Corporation at the Effective Time shall be 22 and shall be divided into three
classes of which one class will consist of eight members and two classes will
consist of seven members. From and after the Effective Time, the Directors of
the Surviving Corporation shall be as listed in Exhibit III to this Merger
Agreement, and each such Director shall serve until the expiration of the term
indicated in Exhibit III for such Director or until prior resignation, removal
or death, subject in all cases to the regulations of the Surviving Corporation.
 
     2.6 OFFICERS. Victor J. Riley, Jr. shall be Chairman of the Board and Chief
Executive Officer of the Surviving Corporation for a term commencing at the
Effective Time and continuing until December 31, 1995 or until his earlier
death, retirement, resignation, or removal in accordance with the Regulations of
the Surviving Corporation. Robert W. Gillespie shall be President of the
Surviving Corporation for a term commencing at the Effective Time and continuing
until December 31, 1998 or until his earlier death, retirement, resignation, or
removal in accordance with the Regulations of the Surviving Corporation.
 
                                        3
<PAGE>   127
 
                                 ARTICLE THREE
 
                 OUTSTANDING SHARES OF CONSTITUENT CORPORATIONS
 
     3.1 OUTSTANDING SHARES. The designation and number, as of October 1, 1993,
of outstanding shares of capital stock of each class of the Constituent
Corporations is as follows:
 
<TABLE>
<CAPTION>
                         KEYCORP DESIGNATION                               NUMBER        VOTING
- ---------------------------------------------------------------------    -----------     -------
<S>                                                                      <C>             <C>
Common Shares par value $5.00 per share..............................    101,655,826       Yes
10% Cumulative Preferred Stock, Series B.............................      1,280,000       No
</TABLE>
 
<TABLE>
<CAPTION>
                         SOCIETY DESIGNATION                               NUMBER        VOTING
- ---------------------------------------------------------------------    -----------     -------
<S>                                                                      <C>             <C>
Common Shares, with a par value of $1 each...........................    117,084,868       Yes
</TABLE>
 
     The numbers of outstanding shares of the respective classes of KeyCorp
Capital Stock and Society Common Stock as set forth above are subject to change
prior to the Effective Time but only in one or more transactions contemplated
by, or permitted under, the terms of the Supplemental Agreement or the terms of
the Stock Option Agreements.
 
                                  ARTICLE FOUR
 
                     MANNER AND BASIS OF CONVERTING SHARES
 
     4.1 CONVERSION. Subject to the provisions of this Article Four, at the
Effective Time, by virtue of the Merger and without any action on the part of
the holders thereof, the shares of the Constituent Corporations shall be
converted as follows:
 
          (i) Each of the shares (other than treasury shares held by KeyCorp or
     KeyCorp Capital Stock owned by Society for its own account) of:
 
          (a) KeyCorp Common Stock issued and outstanding at the Effective Time
     shall cease to be outstanding and shall be converted, by virtue of the
     application of the KeyCorp Exchange Ratio, into 1.205 shares of Surviving
     Corporation Common Stock. Pursuant to the Surviving Corporation Rights
     Plan, each share of Surviving Corporation Common Stock shall be accompanied
     by a right (a "Surviving Corporation Right") under the Surviving
     Corporation Rights Plan; and
 
          (b) KeyCorp Series B Preferred Stock issued and outstanding at the
     Effective Time shall cease to be outstanding and shall be converted into
     one share of Surviving Corporation Class A Preferred Stock.
 
          (ii) Each then outstanding share of Society Common Stock shall
     continue to be an issued and outstanding Common Share, with a par value of
     $1 each, of the Surviving Corporation and any shares of Society Common
     Stock held in Society's treasury immediately prior to the Effective Time
     shall continue to be held in the treasury of the Surviving Corporation at
     the Effective Time.
 
     4.2 SHARES HELD BY KEYCORP OR SOCIETY. All treasury shares held by KeyCorp
and all KeyCorp Capital Stock owned by Society for its own account shall be
canceled and retired at the Effective Time and no consideration shall be issued
in exchange therefor. Shares held in a fiduciary capacity or as a result of
debts previously contracted shall in no event be treated as being held by
KeyCorp or Society for its own account.
 
     4.3 FRACTIONAL SHARES. Notwithstanding any other provision of this Merger
Agreement, each holder of shares of KeyCorp Common Stock who would otherwise
have been entitled to receive a fraction of a share of Surviving Corporation
Common Stock (after taking into account all certificates delivered by such
holder pursuant to Section 5.1 hereof) shall receive, in lieu thereof, cash
(without interest) in an amount equal to such fractional part of a share of
Surviving Corporation Common Stock multiplied by the market value of such common
stock. The market value of one share of Surviving Corporation Common Stock shall
be the closing price of such common stock in the New York Stock
Exchange-Composite Transactions List (as reported by The Wall Street Journal or
other authoritative source) on the last business day preceding the
 
                                        4
<PAGE>   128
 
Effective Time. No such holder shall be entitled to dividends, voting rights, or
any other stockholder right in respect of any fractional share.
 
     4.4 CONVERSION OF STOCK OPTIONS. (a) At the Effective Time, all rights with
respect to KeyCorp Common Stock pursuant to stock options or stock appreciation
rights granted or assumed by KeyCorp under the KeyCorp Stock Option Plans,
including options granted under such Plans pursuant to employment or acquisition
agreements ("KeyCorp Options"), which are outstanding at the Effective Time,
whether or not then exercisable, shall be converted into and become rights with
respect to Surviving Corporation Common Stock and the Surviving Corporation
shall assume each of such KeyCorp Options, in accordance with the terms of the
Stock Option Plan under which it was issued and the stock option or stock
appreciation rights agreement by which it is evidenced. From and after the
Effective Time, (i) each such KeyCorp Option may be exercised solely for shares
of Surviving Corporation Common Stock (or cash in an amount measured by
reference to values of shares of Surviving Corporation Common Stock, to the
extent the KeyCorp Options may be exercisable for cash), notwithstanding any
contrary provisions of the K. Corp. Stock Option Plans, (ii) the number of
shares of Surviving Corporation Common Stock subject to such KeyCorp Options
shall be equal to the number of shares of KeyCorp Common Stock subject to such
KeyCorp Option immediately prior to the Effective Time multiplied by the
Exchange Ratio (with the product rounded down to the next whole share), (iii)
the per share exercise price (or, in the case of stock appreciation rights, the
initial fair market value, related option exercise price or other base amount
provided for in the KeyCorp Options against which appreciation in stock value
may be measured ("Grant Price") under each such KeyCorp Option shall be adjusted
by dividing the per share exercise price or Grant Price under each such KeyCorp
Option by the Exchange Ratio, (with the quotient rounded up to the next whole
cent), and (iv) the Surviving Corporation and its Compensation and Organization
Committee shall be substituted for KeyCorp and the Committee of the KeyCorp
Board of Directors administering the KeyCorp Stock Option Plans. No additional
KeyCorp Options shall be hereafter granted by KeyCorp under the KeyCorp Stock
Option Plans, except in connection with any acquisition transactions permitted
under Section 7.1(d) of the Supplemental Agreement. It is intended that the
foregoing assumption shall be undertaken in a manner that will not constitute a
"modification" as defined in Section 424(h) of the Internal Revenue Code as to
any stock option which is an "incentive stock option." The Surviving Corporation
Board of Directors shall take such action as may be required under the KeyCorp
Stock Option Plans to effectuate the foregoing.
 
     (b) At the Effective Time, the KeyCorp Stock Option Plans shall be
automatically and without further action assumed by the Surviving Corporation
(and thereupon become stock option and stock appreciation rights plans of the
Surviving Corporation) as follows: (i) each option or right granted under a
KeyCorp Stock Option Plan from and after the Effective Time shall be solely for
or in respect of shares of Surviving Corporation Common Stock, notwithstanding
any contrary provisions of the applicable KeyCorp Stock Option Plan, (ii) the
Surviving Corporation and its Compensation and Organization Committee shall be
substituted for KeyCorp and the Committee of the KeyCorp Board of Directors
administering the applicable KeyCorp Stock Option Plan, and (iii) references to
KeyCorp shall be deemed to be references to the Surviving Corporation,
references to KeyCorp's By-Laws shall be deemed to be references to the
Regulations of the Surviving Corporation, and any similar references shall be
appropriately conformed.
 
     4.5 TRANSFERS. At the close of business on the last business day prior to
the date of the Effective Time, the stock transfer books of KeyCorp shall be
closed as to holders of KeyCorp Capital Stock and no transfer of KeyCorp Capital
Stock by such holder shall thereafter be made or recognized. At and after the
Effective Time there shall be no transfers on the stock transfer books of
KeyCorp, of the shares of KeyCorp Capital Stock issued and outstanding
immediately prior to the Effective Time. If, after the Effective Time,
certificates are properly presented to the Exchange Agent in accordance with all
the applicable provisions of Article Five of this Merger Agreement, such
certificates shall be canceled and exchanged for certificates representing the
number of whole shares of Surviving Corporation Capital Stock (including the
related Surviving Corporation Rights) and a check representing the amount of
cash for fractional shares, if any, into which the KeyCorp Capital Stock
represented thereby was converted in the Merger. Any other provision of this
Merger Agreement notwithstanding, neither the Exchange Agent, nor either party
to the Merger shall be liable to a holder of KeyCorp Capital Stock for any
amount paid or property delivered in good faith to a public official pursuant to
any applicable abandoned property, escheat, or similar law.
 
                                        5
<PAGE>   129
 
     4.6 DISSENTING SHAREHOLDERS. (a) No conversion under Section 4.1 of this
Merger Agreement shall be made with respect to any share of KeyCorp Common Stock
as to which a KeyCorp shareholder has properly elected to exercise any right
available to such holder to dissent and obtain payment of the fair value of his
shares under Section 910 of the NYBCL ("Dissenters' Rights") until such time as
such shareholder shall have effectively withdrawn, abandoned or otherwise lost
his Dissenters' Rights.
 
     (b) To the extent provided by the OGCL, any holder of record of Society
Common Stock as of the date fixed for the determination of shareholders of
Society entitled to notice of the special meeting of the shareholders of Society
convened for the purpose of considering and taking action upon the Merger shall
be entitled to relief as a dissenting shareholder in accordance, and subject to
compliance, with the OGCL.
 
     4.7 ASSUMPTION OF DEPOSIT AGREEMENT. At the Effective Time, the Deposit
Agreement, dated as of June 27, 1991, among KeyCorp, The Chase Manhattan Bank
N.A., and the holders of the Receipts described therein, relating to the KeyCorp
Series B Preferred Stock shall automatically, and without further action on the
part of the Surviving Corporation, be assumed by the Surviving Corporation with
respect to the Surviving Corporation Class A Preferred Stock.
 
                                  ARTICLE FIVE
 
                           DELIVERY OF CONSIDERATION
 
     5.1 EXCHANGE PROCEDURES. After the Effective Time, each holder of shares of
KeyCorp Capital Stock issued and outstanding at the Effective Time (other than
shares held by dissenting shareholders of KeyCorp) shall surrender the
certificate or certificates theretofore representing such shares to the Exchange
Agent and promptly upon surrender shall receive in exchange therefor the
consideration provided in Section 4.1 of this Merger Agreement. The certificate
or certificates for KeyCorp Capital Stock so surrendered shall be duly endorsed
as the Exchange Agent may require. To the extent provided in Section 4.4 of this
Merger Agreement, each holder of shares of KeyCorp Common Stock issued and
outstanding at the Effective Time also shall receive, upon surrender of the
certificate or certificates representing such shares, cash in lieu of any
fractional shares of Surviving Corporation Common Stock to which such holder may
be entitled. The Exchange Agent shall provide appropriate transmittal materials
to the shareholders of KeyCorp promptly after the Effective Time. The Surviving
Corporation shall not be obligated to deliver the consideration to which any
former holder of KeyCorp Capital Stock is entitled as a result of the Merger
until such holder surrenders his certificate or certificates representing shares
of KeyCorp Capital Stock for exchange as provided in this Article Five, together
with properly completed and signed transmittal materials. In addition,
certificates surrendered for exchange by any person constituting an "affiliate"
of either KeyCorp or Society for purposes of Rule 145(c) under the Securities
Act of 1933, as amended, shall not be exchanged for certificates representing
whole shares of Surviving Corporation Capital Stock until the Surviving
Corporation has received a written agreement from such person in form and
substance satisfactory to the Surviving Corporation providing that such person
will not dispose of Surviving Corporation Capital Stock received in the Merger
except in compliance with the Securities Act of 1933, as amended, and the rules
and regulations thereunder and the rules of the Securities and Exchange
Commission relating to pooling of interests accounting treatment, and the
Surviving Corporation shall cause its transfer agent to place legends on the
certificates for shares of Surviving Corporation Capital Stock, and enter stop
transfer orders with respect to such shares, to the effect of the foregoing
provision of this Section 5.1. If any certificate for shares of Surviving
Corporation Capital Stock or check representing cash is to be issued in a name
other than that in which a certificate surrendered for exchange is issued, the
certificate so surrendered shall be properly endorsed and otherwise in proper
form for transfer and the person requesting such exchange shall affix any
requisite stock transfer tax stamps to the certificate surrendered or provide
funds for their purchase or establish to the satisfaction of the Exchange Agent
that such taxes are not payable.
 
     5.2 VOTING AND DIVIDENDS. (a) Former shareholders of record of KeyCorp
shall be entitled to vote after the Effective Time at any meeting of the
Surviving Corporation shareholders the number of whole shares of Surviving
Corporation Capital Stock into which their respective shares of KeyCorp Capital
Stock are converted, to the full extent of the voting rights of such Surviving
Corporation Capital Stock provided for under the Surviving Corporation Articles
of Incorporation, regardless of whether such holders have exchanged
 
                                        6
<PAGE>   130
 
their certificates representing KeyCorp Capital Stock for certificates
representing Surviving Corporation Capital Stock, provided, however, that
beginning nine months after the Effective Time, the Surviving Corporation shall
have the right to suspend the voting rights of any such holder until such time
as the holder physically surrenders such certificate for exchange as provided in
Section 5.1 of this Merger Agreement.
 
     (b) Whenever a dividend is declared by the Surviving Corporation on the
Surviving Corporation Capital Stock the record date for which is at or after the
Effective Time, the declaration shall include dividends on all shares issuable
pursuant to this Merger Agreement, provided, however, that no dividend or other
distribution payable to holders of record on any date that is nine months (or
such longer period as the Surviving Corporation shall determine) after the
Effective Time shall be paid to any holder of any certificate representing
shares of KeyCorp Capital Stock issued and outstanding at the Effective Time
until such holder physically surrenders such certificate for exchange as
provided in Section 5.1 of this Merger Agreement. However, upon surrender of a
KeyCorp Capital Stock certificate, both the Surviving Corporation Capital Stock
certificate to be issued pursuant to Section 5.1 of this Merger Agreement
(together with all such dividends or other distributions withheld in accordance
with this subsection, without interest) and any withheld cash payments for
fractional share interests (without interest) shall be delivered and paid with
respect to each share represented by such certificate.
 
                                  ARTICLE SIX
 
                           TERMINATION AND AMENDMENT
 
     6.1 TERMINATION OF PLAN. This Merger Agreement may be terminated, and the
Merger abandoned, any time prior to the Effective Time by the parties hereto,
notwithstanding approval of this Merger Agreement by the shareholders of the
Constituent Corporations, as provided in Article Ten of the Supplemental
Agreement.
 
     6.2 AMENDMENT. To the extent permitted by law, this Merger Agreement may be
amended by a subsequent writing signed by each of Society and KeyCorp upon the
approval of the Boards of Directors of each of Society and KeyCorp; provided,
however, that the provisions of this Merger Agreement relating to the manner or
basis in which shares of KeyCorp Capital Stock will be exchanged for the
Surviving Corporation Capital Stock shall not be amended after the special
meetings of KeyCorp and Society shareholders convened to consider and act upon
this Merger Agreement, the Supplemental Agreement, and the transactions
contemplated hereby and thereby, without any requisite approval of the holders
of the issued and outstanding shares of KeyCorp Capital Stock and Society Common
Stock entitled to vote thereon. Each of Society and KeyCorp may, without
approval of their respective Boards of Directors, make such technical changes to
this Merger Agreement, not inconsistent with the purposes hereof, as may be
required to effect or facilitate any governmental approval or acceptance of the
Merger or of the Supplemental Agreement or this Merger Agreement or to effect or
facilitate any filing or recording required for the consummation of any of the
transactions contemplated hereby or thereby.
 
                                 ARTICLE SEVEN
 
                                 MISCELLANEOUS
 
     7.1 OHIO STATUTORY AGENT. CT Corporation System whose address is 815
Superior Avenue, N.E., Cleveland, Cuyahoga County, Ohio 44114, is the statutory
agent upon whom any process, notice or demand against either of KeyCorp or
Society or the Surviving Corporation may be served.
 
     7.2 FURTHER ASSURANCES. If at any time the Surviving Corporation shall
consider or be advised that any further assignments, conveyances, or assurances
are necessary or desirable to vest, perfect, or confirm in the Surviving
Corporation the title to any property or rights of KeyCorp, or otherwise carry
out the provisions hereof, the proper officers and directors of KeyCorp as of
and immediately prior to the Effective Time, and thereafter the officers of the
Surviving Corporation acting on behalf of KeyCorp, shall execute and deliver any
and all proper assignments, conveyances, and assurances, and do all things
necessary or desirable to
 
                                        7
<PAGE>   131
 
vest, perfect, or confirm title to such property or rights in the Surviving
Corporation and otherwise carry out the provisions hereof.
 
     IN WITNESS WHEREOF, each of the parties has caused this Merger Agreement to
be executed on its behalf by its officers thereunto duly authorized as of the
day and year first above written.
 
<TABLE>
<S>                                              <C>
ATTEST:                                          KEYCORP
By:/s/ Robert W. Bouchard                        By: /s/ Victor J. Riley, Jr.
    Robert W. Bouchard                           Victor J. Riley, Jr.
    Secretary                                    Chairman of the Board
                                                 [CORPORATE SEAL]
                                                 SOCIETY CORPORATION
                                                 By: /s/ Robert W. Gillespie
                                                 Robert W. Gillespie
                                                 Chairman of the Board
                                                 And:/s/ Lawrence J. Carlini
                                                       Lawrence J. Carlini
                                                       Secretary
                                                 [CORPORATE SEAL]
</TABLE>
 
                                        8
<PAGE>   132
 
                                                                       EXHIBIT I
 
                              AMENDED AND RESTATED
 
                           ARTICLES OF INCORPORATION
 
                                       OF
 
                              KEY BANCSHARES INC.
 
                                   ARTICLE I
 
                                      NAME
 
     The name of the corporation (hereinafter called the "Corporation") is "Key
Bancshares Inc."
 
                                   ARTICLE II
 
                                PRINCIPAL OFFICE
 
     The principal office and headquarters of the Corporation shall be located
in the City of Cleveland, County of Cuyahoga, State of Ohio.
 
                                  ARTICLE III
 
                                    PURPOSES
 
     The purposes of the Corporation are:
 
          (a) to organize, acquire, invest in, own, or control shares and other
     securities of banks, other depository institutions, and other companies
     which a bank holding company is permitted to own or control by the
     provisions of the Bank Holding Company Act of 1956, as now in effect or
     hereafter amended, and to carry on the business of a bank holding company
     in conformity with the Bank Holding Company Act of 1956, as now in effect
     or hereafter amended,
 
          (b) to do whatever is deemed necessary, incidental, or conducive to
     carrying out any of the purposes of the Corporation; and
 
          (c) to engage in any lawful act or activity for which corporations may
     be formed under the Ohio General Corporation Law.
 
                                   ARTICLE IV
 
                       AUTHORIZED SHARES OF CAPITAL STOCK
 
     SECTION 1. The authorized number of shares of the Corporation is
926,400,000, of which 1,400,000 shall be shares of 10% Cumulative Preferred
Stock, Class A, of the par value of $5.00 per share, as described in Part A of
this Article IV (hereinafter called "10% Cumulative Preferred Stock"),
25,000,000 shall be shares of preferred stock, with a par value of $1 each, as
described in Part B of this Article IV (hereinafter called "Preferred Stock"),
and 900,000,000 shall be Common Shares, with a par value of $1 each, as
described in Part C of this Article IV (hereinafter called "Common Shares").
 
     The express terms of each class are as follows:
 
                                        1
<PAGE>   133
 
   
                                     PART A
    
 
   
            EXPRESS TERMS OF 10% CUMULATIVE PREFERRED STOCK, CLASS A
    
 
   
     SECTION 1. Number of Shares; Designation. The distinctive designation of
this preferred stock is "10% Cumulative Preferred Stock, Class A", and the
aggregate number of shares that shall constitute such class of preferred stock
is 1,400,000.
    
 
   
     SECTION 2. Dividend Rights.
    
 
          (a) Dividends shall be payable on the shares of the 10% Cumulative
     Preferred Stock when, as and if declared by the Board of Directors or a
     duly authorized committee thereof, out of funds legally available therefor:
     (A) for the period (the "Initial Dividend Period") from the date of their
     original issue (which shall be the date of the Effective Time) to and
     including the day next preceding the first day of the first full quarterly
     dividend period beginning after the date of the Effective Time, and (B) for
     each quarterly dividend period thereafter (the Initial Dividend Period and
     each quarterly dividend period being hereinafter individually referred to
     as a "Dividend Period" and collectively referred to as "Dividend Periods"),
     which quarterly Dividend Periods shall commence on March 31, June 30,
     September 30, and December 31 in each year, commencing with the first such
     March 31, June 30, September 30, or December 31 after the date of the
     Effective Time, and shall end on and include the day next preceding the
     first day of the next Dividend Period, at a rate per annum of the
     liquidation preference thereof equal to 10% (the "Dividend Rate").
     Dividends shall be cumulative from the date of original issue of such
     shares (which shall be the date of the Effective Time) and shall be
     payable, when, as and if declared by the Board of Directors, on March 31,
     June 30, September 30, and December 31 of each year, commencing with the
     first such March 31, June 30, September 30, or December 31 after the date
     of the Effective Time; provided, however, that in lieu of any dividend
     payment by KeyCorp to holders of shares of 10% Cumulative Preferred Stock,
     Series B, of KeyCorp (the "KeyCorp Series B Preferred") in respect of the
     KeyCorp Series B Preferred Stock for the portion of the then current
     "Dividend Period" (as defined in the terms of the KeyCorp Series B
     Preferred Stock contained in the Restated Certificate of Incorporation of
     KeyCorp, as amended) that shall have elapsed prior to the date of the
     Effective Time (the "Series B Transition Period"), the Corporation shall
     pay, on the first dividend payment date for 10% Cumulative Preferred Stock
     to holders of record of 10% Cumulative Preferred Stock on the record date
     for such dividend payment, the dividend that shall have accrued on the
     KeyCorp Series B Preferred Stock for the Series B Transition Period (the
     "Series B Transition Period Dividend Payment"). However, notwithstanding
     any provision of this Section 2 to the contrary, in the event that the date
     of the Effective Time is after the regularly scheduled record date for
     dividends on the KeyCorp Series B Preferred Stock for the then current
     "Dividend Period" of the KeyCorp Series B Preferred Stock and on or before
     the regularly scheduled payment date for such quarterly dividend, (W)
     KeyCorp shall pay the full dividend for such then current "Dividend Period"
     on or before the date of the Effective Time to holders of record of shares
     of KeyCorp Series B Preferred Stock on such record date, (X) the
     Corporation shall not make and shall have no obligation to make the Series
     B Transition Period Dividend Payment or any other payment to the holders of
     shares of KeyCorp Series B Preferred Stock with respect to such then
     current "Dividend Period", (Y) dividends on the 10% Cumulative Preferred
     Stock of the Corporation will accrue only from and after the day
     immediately following the last day of such then current "Dividend Period"
     of the KeyCorp Series B Preferred Stock, and (Z) no dividend will accrue or
     be paid on the 10% Cumulative Preferred Stock of the Corporation with
     respect to any period prior to such date. Each such dividend on the 10%
     Cumulative Preferred Stock shall be paid to the holders of record of shares
     of the 10% Cumulative Preferred Stock as they appear on the stock register
     of the Corporation on such record date, not more than 45 days or less than
     14 days preceding the payment date thereof, as shall be fixed by the Board
     of Directors. Dividends on account of arrears for any past Dividend Periods
     may be declared and paid at any time, without reference to any regular
     dividend payment date, to holders of record on such date, not more than 45
     days or less than 14 days preceding the payment date thereof, as may be
     fixed by the Board of Directors.
 
          (b) Dividends payable on shares of the 10% Cumulative Preferred Stock
     for any period greater or less than a full Dividend Period, including the
     Initial Dividend Period, shall be computed on the basis of a 360-day year
     consisting of twelve 30-day months. Dividends payable on shares of the 10%
     Cumulative Preferred Stock for each full Dividend Period shall be computed
     by annualizing the Dividend Rate and dividing by four.
 
                                        2
<PAGE>   134
 
          (c) The Corporation shall not declare or pay or set apart for payment
     any dividends on any class of preferred stock ranking, as to dividends, on
     a parity with or junior to the 10% Cumulative Preferred Stock unless full
     cumulative dividends have been or contemporaneously are declared and paid,
     or declared and a sum sufficient for payment thereof is set apart for
     payment, for all Dividend Periods terminating on or prior to the date of
     payment of any such dividends on such other classes of preferred stock.
     When dividends are not paid in full upon the 10% Cumulative preferred stock
     and any other class of preferred stock ranking on a parity therewith as to
     dividends, all dividends declared upon shares of the 10% Cumulative
     Preferred Stock and any other class of preferred stock ranking on a parity
     therewith as to dividends shall be declared pro rata so that the amount of
     dividends declared per share on the shares of the 10% Cumulative Preferred
     Stock and such other class of preferred stock shall in all cases bear to
     each other the same ratio that the accrued dividends per share on the
     shares of the 10% Cumulative Preferred Stock and such other class of
     preferred stock bear to each other. Except as provided in the preceding
     sentence, unless full cumulative dividends on the 10% Cumulative Preferred
     Stock have been paid for all past Dividend Periods, no dividends (other
     than in Common Shares or another stock ranking junior to the 10% Cumulative
     Preferred Stock as to dividends and upon liquidation) shall be declared or
     paid or set aside for payment nor shall any other distribution be made upon
     the Common Shares or on any other stock of the Corporation ranking junior
     to or on a parity with the 10% Cumulative Preferred Stock as to dividends
     or upon liquidation. Unless full cumulative dividends on the 10% Cumulative
     Preferred Stock have been paid for all past dividend payment periods, no
     Common Shares or any other stock of the Corporation ranking junior to or on
     a parity with the 10% Cumulative Preferred Stock as to dividends or upon
     liquidation shall be redeemed, purchased or otherwise acquired for any
     consideration (or any moneys be paid to or made available for a sinking
     fund for the redemption of any shares of any such stock) by the Corporation
     or any subsidiary, except by conversion into or exchange for stock of the
     Corporation ranking junior to the 10% Cumulative Preferred Stock as to
     dividends and upon liquidation.
 
     SECTION 3. Liquidation. In the event of any voluntary or involuntary
liquidation, dissolution, or winding up of the Corporation, the holders of
shares of the 10% Cumulative Preferred Stock are entitled to receive out of the
assets of the Corporation available for distribution to shareholders, before any
distribution of assets is made to holders of Common Shares or any other class of
stock ranking junior to the 10% Cumulative Preferred Stock upon liquidation,
liquidating distributions in the amount of $125 per share plus accrued and
unpaid dividends. If, upon any voluntary or involuntary liquidation,
dissolution, or winding up of the Corporation the amounts payable with respect
to the 10% Cumulative Preferred Stock and any other shares of stock of the
Corporation ranking as to any such distribution on a parity with the 10%
Cumulative Preferred Stock are not paid in full, the holders of shares of the
10% Cumulative Preferred Stock and of such other shares will share ratably in
any such distribution of assets of the Corporation in proportion to the full
respective preferential amounts to which they are entitled. After payment of the
full amount of the liquidating distribution to which they are entitled, the
holders of shares of the 10% Cumulative Preferred Stock will not be entitled to
any further participation in any distribution of assets by the Corporation.
 
     SECTION 4. Redemption.
 
     The shares of the 10% Cumulative Preferred Stock are not redeemable prior
to June 30, 1996. On and after such date, the 10% Cumulative Preferred Stock is
redeemable in cash at the option of the Corporation, in whole or in part, from
time to time upon not less than 30 nor more than 60 days' notice, with the prior
approval of the Federal Reserve Board (if such approval is required), at $125
per share plus all accrued and unpaid dividends to the date fixed for
redemption.
 
     If fewer than all the outstanding shares of the 10% Cumulative Preferred
Stock are to be redeemed, the number of shares to be redeemed will be determined
by the Board of Directors and such shares shall be redeemed pro rata from the
holders of record of such shares in proportion to the number of such shares held
by such holders (with adjustments to avoid redemption of fractional shares) or
by lot in a manner determined by the Board of Directors.
 
     Notwithstanding the foregoing, if any dividends, including any
accumulation, on the shares of the 10% Cumulative Preferred Stock are in
arrears, no shares of the 10% Cumulative Preferred Stock shall be
 
                                        3
<PAGE>   135
 
redeemed unless all outstanding shares of the 10% Cumulative Preferred Stock are
simultaneously redeemed, and the Corporation shall not purchase or otherwise
acquire any shares of the 10% Cumulative Preferred Stock; provided, however,
that the foregoing shall not prevent the purchase or acquisition of shares of
the 10% Cumulative Preferred Stock pursuant to a purchase or exchange offer
provided such offer is made on the same terms to all holders of shares of the
10% Cumulative Preferred Stock.
 
     Notice of redemption shall be given by mailing the same to each record
holder of shares of the 10% Cumulative Preferred Stock to be redeemed, not less
than 30 nor more than 60 days prior to the date fixed for redemption thereof, to
the respective addresses of such holders as the same shall appear on the stock
books of the Corporation. Each notice shall state: (i) the redemption date; (ii)
the number of shares and series of the 10% Cumulative Preferred Stock to be
redeemed; (iii) the redemption price; (iv) the place or places where
certificates for such shares of 10% Cumulative Preferred Stock are to be
surrendered for payment of the redemption price; and (v) that dividends on the
shares to be redeemed will cease to accrue on such redemption date. If fewer
than all the shares of the 10% Cumulative Preferred Stock held by any holder are
to be redeemed, the notice mailed to such holder shall also specify the number
of shares of the 10% Cumulative Preferred Stock to be redeemed from such holder.
 
     After the date fixed for the redemption of shares of the 10% Cumulative
Preferred Stock by the Corporation, the holders of shares selected for
redemption shall cease to be shareholders with respect to such shares and shall
have no interest in or claim against the Corporation by virtue thereof and shall
have no voting or other rights with respect to such shares, except the right to
receive the moneys payable upon such redemption from the Corporation, without
interest thereon, upon surrender (and endorsement, if required by the
Corporation) of their certificates, and the shares represented thereby shall no
longer be deemed to be outstanding. The Corporation may, at its option, at any
time after a notice of redemption has been given, deposit the redemption price
for the shares of the 10% Cumulative Preferred Stock designated for redemption
and not yet redeemed, plus any accrued and unpaid dividends thereon to the date
fixed for redemption, with the transfer agent or agents for the 10% Cumulative
Preferred Stock, as a trust fund for the benefit of the holders of the shares of
the 10% Cumulative Preferred Stock designated for redemption. From and after the
making of such deposit, the holders of the shares designated for redemption
shall cease to be shareholders with respect to such shares and shall have no
interest in or claim against the Corporation by virtue thereof and shall have no
voting or other rights with respect to such shares, except the right to receive
from such trust fund the moneys payable upon such redemption, without interest
thereon, upon surrender (and endorsement, if required by the Corporation) of
their certificates, and the shares represented thereby shall no longer be deemed
to be outstanding. Any balance of such moneys remained unclaimed at the end of
the five-year period commencing on the date fixed for redemption shall be repaid
to the Corporation upon its request expressed in a resolution of its Board of
Directors.
 
     Any shares of the 10% Cumulative Preferred Stock that shall at any time
have been redeemed shall, after such redemption, be deemed retired.
 
     SECTION 5. Voting Rights. Except as indicated below, or except as required
by applicable law, the holders of the 10% Cumulative Preferred Stock shall not
have any voting powers, either general or special, except that:
 
          (a) if the Corporation shall fail to pay full cumulative dividends on
     the shares of the 10% Cumulative Preferred Stock or any other class of
     Preferred Stock for six quarterly dividend payment periods, whether or not
     consecutive, the number of directors will be increased by two, and the
     holders of all outstanding shares of 10% Cumulative Preferred Stock and all
     other outstanding classes of Preferred Stock, voting as a single class
     without regard to series, will be entitled to elect such additional two
     directors until full cumulative dividends for all past dividend payment
     periods on all outstanding shares of 10% Cumulative Preferred Stock and all
     other classes of Preferred Stock have been paid or declared and set apart
     for payment. Such right to vote separately as a class to elect directors
     shall, when vested, be subject, always, to the same provisions for the
     vesting of such right to elect directors separately as a class in the case
     of future dividend defaults. At any time when such right to elect directors
     separately as a class shall have so vested, the Corporation may, and upon
     the written request of the holders of record of not less than twenty
     percent of the total number of shares of 10% Cumulative Preferred Stock and
     all other
 
                                        4
<PAGE>   136
 
     classes of Preferred Stock of the Corporation then outstanding shall, call
     a special meeting of shareholders for the election of such directors. In
     the case of such a written request, such special meeting shall be held
     within 90 days after the delivery of such request and, in either case, at
     the place and upon the notice provided by law and in the Regulations of the
     Corporation, provided that the Corporation shall not be required to call
     such a special meeting if such request is received less than 120 days
     before the date fixed for the next ensuing annual meeting of shareholders
     of the Corporation. Directors elected as aforesaid shall serve until the
     next annual meeting of shareholders of the Corporation or until their
     respective successors shall be elected and qualify. If, prior to the end of
     the term of any director elected as aforesaid, a vacancy in the office of
     such director shall occur during the continuance of a default in dividends
     on the 10% Cumulative Preferred Stock by reason of death, resignation, or
     disability, such vacancy shall be filled for the unexpired term by the
     appointment by the remaining director or directors elected as aforesaid of
     a new director for the unexpired term of such former director,
 
          (b) affirmative vote or consent of the holders of at least two-thirds
     of the outstanding shares of the 10% Cumulative Preferred Stock, voting as
     a class, will be required for any amendment to the articles of
     incorporation that will adversely affect the powers, preferences,
     privileges, or rights of the shares of the 10% Cumulative Preferred Stock,
     except as set forth below. The affirmative vote or consent of the holders
     of at least a majority of the outstanding shares of the 10% Cumulative
     Preferred Stock and any other class of Preferred Stock ranking on a parity
     with the 10% Cumulative Preferred Stock as to dividends or upon
     liquidation, voting as a single class, will be required to issue,
     authorize, or increase the authorized amount of any class of shares ranking
     prior to the 10% Cumulative Preferred Stock as to dividends or upon
     liquidation or to issue or authorize any obligation or security convertible
     into or evidencing a right to purchase any such security, but the articles
     of incorporation may be amended to increase the number of authorized shares
     of Preferred Stock ranking on a parity with or junior to the 10% Cumulative
     Preferred Stock or to create another class of preferred stock ranking on a
     parity with or junior to the 10% Cumulative Preferred Stock without the
     vote of the holders of outstanding shares of the 10% Cumulative Preferred
     Stock, and
 
          (c) subject to such affirmative vote or consent of the holders of the
     outstanding shares of the 10% Cumulative Preferred Stock, the Corporation
     may, by resolution of its Board of Directors or as otherwise permitted by
     law, from time to time alter or change the preferences, rights, or powers
     of the shares of the 10% Cumulative Preferred Stock. The holders of shares
     of the 10% Cumulative Preferred Stock shall not be entitled to participate
     in any such vote if, at or prior to the time when any such alteration or
     change is to take effect, provision is made for the redemption of all the
     shares of 10% Cumulative Preferred Stock at the time outstanding. Nothing
     in this section shall be taken to require a class vote or consent in
     connection with the authorization, designation, increase, or issuance of
     any shares of any class or series that rank junior to or on a parity with
     the 10% Cumulative Preferred Stock as to dividends and liquidation rights
     or in connection with the authorization, designation, increase or issuance
     of any bonds, mortgages, debentures, or other obligations of the
     Corporation.
 
     SECTION 6. Conversion. The shares of the 10% Cumulative Preferred Stock are
not convertible into shares of any other class or series of the capital stock of
the Corporation.
 
     SECTION 7. Preemptive Rights. No holder of 10% Cumulative Preferred Stock
shall be entitled as such as a matter of right to subscribe for or purchase any
part of any issue of shares of the Corporation, of any class whatsoever, or any
part of any issue of securities convertible into shares of the Corporation, of
any class whatsoever, and whether issued for cash, property, services, or
otherwise.
 
                                     PART B
 
                      EXPRESS TERMS OF THE PREFERRED STOCK
 
     SECTION 1. Series.
 
     The Preferred Stock may be issued from time to time in series. All shares
of Preferred Stock shall be of equal rank and the express terms thereof shall be
identical, except in respect of the terms that may be fixed by
 
                                        5
<PAGE>   137
 
the Board of Directors as hereinafter provided, and each share of each series
shall be identical with all other shares of such series, except that in the case
of series on which dividends are cumulative the dates from which dividends are
cumulative may vary to reflect differences in the dates of issue. Subject to the
provisions of Sections 2 through 7, inclusive, of this Part B, which shall apply
to all Preferred Stock, the Board of Directors is hereby authorized to cause
shares of Preferred Stock to be issued in one or more series and with respect to
each such series to fix:
 
          (a) The designation of the series, which may be by distinguishing
     number, letter, or title.
 
          (b) The authorized number of shares of the series, which number the
     Board of Directors may, except to the extent otherwise provided in the
     creation of the series, from time to time, increase or decrease, but not
     below the number of shares thereof then outstanding.
 
          (c) The dividend rate or rates (which may be fixed or adjustable) of
     the shares of the series.
 
          (d) The dates on which dividends, if declared, shall be payable and,
     in the case of series on which dividends are cumulative, the dates from
     which dividends shall be cumulative.
 
          (e) The redemption rights and price or prices, if any, for shares of
     the series.
 
          (f) The amount, terms, conditions, and manner of operation of any
     retirement or sinking fund to be provided for the purchase or redemption of
     shares of the series.
 
          (g) The amounts payable on shares of the series in the event of any
     liquidation, dissolution, or winding up of the affairs of the Corporation.
 
          (h) Whether the shares of the series shall be convertible into Common
     Shares or shares of any other series or class, and, if so, the
     specification of such other class or series, the conversion price or prices
     or rate or rates, any adjustment thereof, and all other terms and
     conditions upon which such conversion may be made.
 
          (i) The restrictions, if any, upon the issue of any additional shares
     of the same series or of any other class or series.
 
     The Board of Directors is authorized to adopt from time to time amendments
to these articles of incorporation fixing, with respect to each series, the
matters described in Clauses (a) through (i), inclusive, of this Section 1.
 
     SECTION 2. Voting Rights.
 
          (a) The holders of Preferred Stock shall not be entitled to vote upon
     matters presented to the shareholders, except as provided in this Section 2
     or as required by law.
 
          (b) If the Corporation shall fail to pay full cumulative dividends on
     any series of Preferred Stock or the 10% Cumulative Preferred Stock (if
     then outstanding) for six quarterly dividend payment periods, whether or
     not consecutive, the number of directors will be increased by two, and the
     holders of all outstanding series of Preferred Stock and the 10% Cumulative
     Preferred Stock, voting as a single class without regard to series, will be
     entitled to elect such additional two directors until full cumulative
     dividends for all past dividend payment periods on all series of Preferred
     Stock and the 10% Cumulative Preferred Stock have been paid or declared and
     set apart for payment or until non-cumulative dividends have been paid
     regularly for at least one full year. Such right to vote separately as a
     class to elect directors shall, when vested, be subject, always, to the
     same provisions for the vesting of such right to elect directors separately
     as a class in the case of future dividend defaults. At any time when such
     right to elect directors separately as a class shall have so vested, the
     Corporation may, and upon the written request of the holders of record of
     not less than twenty percent of the total number of shares of the Preferred
     Stock and 10% Cumulative Preferred Stock of the Corporation then
     outstanding shall, call a special meeting of shareholders for the election
     of such directors. In the case of such a written request, such special
     meeting shall be held within ninety days after the delivery of such request
     and, in either case, at the place and upon the notice provided by law and
     in the Regulations of the Corporation, provided that the Corporation shall
     not be required to call such a special meeting if such request is received
     less than 120 days before the date fixed for the next ensuing annual
     meeting of shareholders of the Corporation. Directors elected as aforesaid
     shall serve until the next annual meeting of shareholders of the
     Corporation or until their
 
                                        6
<PAGE>   138
 
     respective successors shall be elected and qualify. If, prior to the end of
     the term of any director elected as aforesaid, a vacancy in the office of
     such director shall occur during the continuance of a default in dividends
     on any series of Preferred Stock by reason of death, resignation or
     disability, such vacancy shall be filled for the unexpired term by the
     appointment by the remaining director or directors elected as aforesaid of
     a new director for the unexpired term of such former director.
 
          (c) The affirmative vote or consent of the holders of at least
     two-thirds of the then outstanding shares of Preferred Stock, given in
     person or by proxy, either in writing or at a meeting called for the
     purpose at which the holders of Preferred Stock shall vote separately as a
     class, shall be necessary to effect any amendment, alteration, or repeal of
     any of the provisions of these articles of incorporation or the regulations
     of the Corporation which would be substantially prejudicial to the voting
     powers, rights, or preferences of the holders of Preferred Stock (but so
     far as the holders of Preferred Stock are concerned, such action may be
     effected with such vote or consent); provided, however, that neither the
     amendment of these articles of incorporation to authorize or to increase
     the authorized or outstanding number of shares of any class ranking junior
     to or on a parity with the Preferred Stock, nor the amendment of the
     regulations so as to change the number of directors of the Corporation,
     shall be deemed to be substantially prejudicial to the voting powers,
     rights, or preferences of the holders of Preferred Stock (and any such
     amendment referred to in this proviso may be made without the vote or
     consent of the holders of the Preferred Stock); and provided further that
     if such amendment, alteration, or repeal would be substantially prejudicial
     to the rights or preferences of one or more but not all then outstanding
     series of Preferred Stock, the affirmative vote or consent of the holders
     of at least two-thirds of the then outstanding shares of the series so
     affected shall also be required.
 
          (d) The affirmative vote or consent of the holders of at least
     two-thirds of the then outstanding shares of Preferred Stock and, if the
     holders of 10% Cumulative Preferred Stock are entitled to vote on such
     matter pursuant to Section 5 of Part A of this Article IV, the 10%
     Cumulative Preferred Stock, given in person or by proxy, either in writing
     or at a meeting called for the purpose at which the holders of Preferred
     Stock and, if applicable, 10% Cumulative Preferred Stock shall vote as a
     single class shall be necessary to effect any one or more of the following:
 
             (i) The authorization of, or the increase in the authorized number
        of, any shares of any class ranking prior to the Preferred Stock; or
 
             (ii) The purchase or redemption for sinking fund purposes or
        otherwise of less than all of the then outstanding Preferred Stock
        except in accordance with a purchase offer made to all holders of record
        of Preferred Stock, unless all dividends on all Preferred Stock then
        outstanding for all previous dividend periods shall have been declared
        and paid or funds therefor set apart and all accrued sinking fund
        obligations applicable thereto shall have been complied with.
 
     SECTION 3. Preemptive Rights.
 
     No holder of Preferred Stock shall be entitled as such as a matter of right
to subscribe for or purchase any part of any issue of shares of the Corporation,
of any class whatsoever, or any part of any issue of securities convertible into
shares of the Corporation, of any class whatsoever, and whether issued for cash,
property, services or otherwise.
 
     SECTION 4. Definitions.
 
     For the purposes of this Part B:
 
          (a) Whenever reference is made to shares "ranking prior to the
     Preferred Stock," such reference shall mean and include all shares of the
     Corporation in respect of which the rights of the holders thereof either as
     to the payment of dividends or as to distribution in the event of a
     liquidation, dissolution or winding up of the Corporation are given
     preference over the rights of the holders of Preferred Stock.
 
          (b) Whenever reference is made to shares "on a parity with the
     Preferred Stock," such reference shall mean and include all shares of the
     Corporation in respect of which the rights of the holders thereof
 
                                        7
<PAGE>   139
 
     as to the payment of dividends or as to distributions in the event of a
     liquidation, dissolution, or winding up of the Corporation rank on an
     equality or parity with the rights of the holders of Preferred Stock.
 
          (c) Whenever reference is made to shares "ranking junior to the
     Preferred Stock," such reference shall mean and include all shares of the
     Corporation in respect of which the rights of the holders thereof as to the
     payment of dividends and as to distributions in the event of a liquidation,
     dissolution or winding up of the Corporation are junior or subordinate to
     the rights of the holders of Preferred Stock.
 
                                     PART C
 
                         EXPRESS TERMS OF COMMON SHARES
 
     SECTION 1. General.
 
     The holders of Common Shares shall be entitled to one vote for each Common
Share held by them, respectively, on each matter properly submitted to
shareholders for their vote, consent, waiver, release or other action.
 
     SECTION 2. Preemptive Rights.
 
     No holder of Common Shares shall be entitled as such as a matter of right
to subscribe for or purchase any part of any issue of shares of the Corporation
of any class whatsoever, or any part of any issue of securities convertible into
shares of the Corporation, of any class whatsoever, and whether issued for cash,
property, services, or otherwise.
 
                                     PART D
 
                               CUMULATIVE VOTING
 
     No holder of shares of any class of the Corporation may cumulate his voting
power.
 
                                   ARTICLE V
 
                               PURCHASE OF SHARES
 
     Subject to the provisions of Article IV hereof, the Corporation, by action
of its directors, and without action by its shareholders, may, from time to
time, purchase its own shares of any class in accordance with the provisions of
the Ohio General Corporation Law; and such purchase may be made either in the
open market, or at public or private sales, in such manner and amounts, from
such holder or holders of outstanding shares of the Corporation and at such
price as the directors shall, from time to time, determine.
 
                                   ARTICLE VI
 
                                     VOTING
 
     Any proposal which, under applicable law, requires the approval of holders
of shares of the Corporation:
 
        (1) to adopt an amendment to these articles of incorporation (which term
           includes amended articles of incorporation),
 
          (2) to sell, exchange, transfer, or otherwise dispose of all, or
     substantially all, the assets of the Corporation,
 
          (3) to effect a merger or consolidation involving the Corporation,
 
          (4) to effect a combination or majority share acquisition (as such
     terms are defined by the laws of the State of Ohio), or
 
          (5) to dissolve, liquidate, or wind up the affairs of the Corporation,
 
                                        8
<PAGE>   140
 
may be authorized and approved by the affirmative vote of the holders of shares
entitling them to exercise a majority of the voting power of the Corporation on
such proposal and, if a proposal upon which holders of shares of a particular
class or classes are required to vote separately as a class by other provisions
of these articles of incorporation or law, by the affirmative vote of the
holders of shares entitling them to exercise a majority of the voting power of
such class or classes, except as otherwise provided in Section 5 of Part A and
Section 2 of Part B of Article IV with respect to the 10% Cumulative Preferred
Stock and the Preferred Stock of the Corporation. Notwithstanding the foregoing,
the provisions of this Article VI shall not reduce the vote of shareholders
required to approve a transaction which requires shareholder approval under
Chapter 1704 of the Ohio Revised Code.
 
                                  ARTICLE VII
 
                 OPT-OUT OF CONTROL SHARE ACQUISITIONS STATUTE
 
     Section 1701.831 of the Ohio Revised Code shall not apply to control share
acquisitions of shares of the Corporation.
 
                                  ARTICLE VIII
 
                         AMENDED AND RESTATED ARTICLES
 
     These Amended and Restated Articles of Incorporation of Key Bancshares Inc.
supersede the Amended and Restated Articles of Incorporation of Society
Corporation filed with the Secretary of State of Ohio on September 24, 1993.
 
                                        9
<PAGE>   141
 
                                                                      EXHIBIT II
 
                                  REGULATIONS
 
                                       OF
 
                              KEY BANCSHARES INC.
 
                          (Effective           , 1994)
 
                                   ARTICLE I
 
                                  SHAREHOLDERS
 
     Section 1. Place of Meeting. All meetings of the shareholders of the
Corporation shall be held at the office of the Corporation or at such other
places, within or without the State of Ohio, as may from time to time be
determined by the Board of Directors, the Chairman of the Board, or the
President and specified in the notice of such meeting.
 
     Section 2. Annual Meetings. The annual meeting of the shareholders of the
Corporation for the election of directors, the consideration of reports to be
laid before such meeting, and the transaction of such other business as may
properly come before the meeting shall be held on the third Wednesday in May in
each year, if not a legal holiday under the laws of the place where the meeting
is to be held, and, if a legal holiday, then on the next succeeding day not a
legal holiday under the laws of such place, or on such other date and at such
hour as may from time to time be determined by the Board of Directors, the
Chairman of the Board, or the President.
 
     Section 3. Special Meetings. Except as otherwise required by law and
subject to the rights of the holders of any class or series of preferred stock
of the Corporation, special meetings of the shareholders for any purpose or
purposes may be called only by (i) the Chairman of the Board, (ii) the
President, or, in the case of the President's absence, death, or disability, the
vice president authorized to exercise the authority of the President, (iii) the
Board of Directors by action at a meeting, or a majority of the entire
authorized Board of Directors acting without a meeting, or (iv) the persons who
hold 50% of all shares outstanding and entitled to vote at the special meeting.
 
     Upon request in writing delivered either in person or by registered mail to
the Chairman of the Board, the President, or the Secretary by any persons
entitled to call a meeting of shareholders, such officer shall forthwith cause
to be given to the shareholders entitled thereto notice of a meeting to be held
on a date not less than ten nor more than 60 days after the receipt of such
request, as such officer may fix. If such notice is not given within 30 days
after the delivery or mailing of such request, the persons calling the meeting
may fix the time of the meeting and give notice thereof in the manner provided
by law or as provided in these Regulations, or cause such notice to be given by
any designated representative.
 
     Section 4. Notice of Meetings. Except as otherwise provided by law, written
notice of each meeting of the shareholders, whether annual or special, shall be
given, either by personal delivery or by mail, not less than seven nor more than
60 days before the date of the meeting to each shareholder of record entitled to
notice of the meeting, by or at the direction of the Chairman of the Board,
President or Secretary or any other person or persons required or permitted by
these Regulations to give such notice. If mailed, such notice shall be deemed
given when deposited in the United States mail, postage prepaid, directed to the
shareholder at such shareholder's address as it appears on the records of the
Corporation. Each such notice shall state the place, date, and hour of the
meeting, and the purpose or purposes for which the meeting is called. Notice of
adjournment of a meeting of shareholders need not be given if the time and place
to which it is adjourned are fixed and announced at such meeting.
 
     Section 5. Quorum. Except as otherwise provided by law or by the Articles
of Incorporation of the Corporation, the holders of shares entitled to exercise
a majority of the voting power of the Corporation at the meeting shall
constitute a quorum for the transaction of business at any meeting of the
shareholders; provided,
 
                                        1
<PAGE>   142
 
however, that no action required by law, by the Articles of Incorporation of the
Corporation, or by these Regulations to be authorized or taken by the holders of
a designated proportion of the shares of any particular class or of each class
of the Corporation may be authorized or taken by a lesser proportion.
 
     Section 6. Adjournments. The holders of a majority of the voting shares
represented at a meeting, whether or not a quorum is present, may adjourn such
meeting from time to time.
 
     Section 7. Advance Notice of Shareholder Proposals. At any annual or
special meeting of shareholders, proposals by shareholders and persons nominated
for election as directors by shareholders shall be considered if advance notice
thereof has been timely given as provided in this Section 7, in the case of
proposals by shareholders, and as provided in Section 4(c) of Article II, in the
case of persons nominated for election as directors by shareholders, and such
proposals or nominations are otherwise proper for consideration under applicable
law and the Articles of Incorporation of the Corporation. Notice of any proposal
to be presented by any shareholder shall be given in writing to the Secretary of
the Corporation, delivered to or mailed and received at the Corporation's
principal executive offices, not less than 60 nor more than 90 days prior to the
shareholders' meeting; provided, however, that in the event that less than 75
days' notice to the shareholders or prior public disclosure of the date of the
meeting is given or made, the written notice of such shareholder's intent to
make such proposal must be given to the Secretary not later than the close of
business on the fifteenth day following the earlier of the day on which such
notice of the date of the meeting was mailed or such public disclosure was made.
Any shareholder who gives notice of any such proposal shall deliver therewith
the text of the proposal to be presented and a brief written statement of the
reasons why such shareholder favors the proposal and setting forth such
shareholder's name and record address, the number and class of all shares of
each class of stock of the Corporation beneficially owned (within the meaning of
Rule 13d-3 promulgated under the Securities Exchange Act of 1934) by such
shareholder and any material interest of such shareholder in the proposal (other
than as a shareholder). The person presiding at the meeting, in addition to
making any other determinations that may be appropriate to the conduct of the
meeting, shall determine whether such notice under this Section 7 or under
Section 4(c) of Article II, as applicable, has been duly given and shall direct
that proposals and nominees not be considered if such notice (together with all
required information to be submitted by such shareholder under this Section 7 or
under Section 4(c) of Article II, as applicable) has not been given.
 
                                   ARTICLE II
 
                               Board of Directors
 
     Section 1. Number, Classification, and Term of Office. The Board of
Directors shall be divided into three classes. The respective terms of the three
classes of directors are staggered so that at any time the term of one class
will expire at the next annual meeting of shareholders thereafter occurring, the
term of a second class will expire at the second annual meeting of shareholders
thereafter occurring, and the term of a third class will expire at the third
annual meeting of shareholders thereafter occurring. At each annual meeting of
shareholders of the Corporation, the successors to the directors of the class
whose term will expire in that year shall be elected to hold office for a term
expiring at the annual meeting of shareholders occurring in the third year after
the date of their election. In each instance directors shall hold office until
their successors are chosen and qualified, or until the earlier death,
retirement, resignation, or removal of any such director as provided in Section
13 of this Article II.
 
     At the Effective Time (as defined in Section 2 of Article IV of these
Regulations), the number of directors of the Corporation shall be 22, divided
into three classes as follows: one class of seven directors whose term will
expire at the next annual meeting of shareholders occurring after the Effective
Time, one class of seven directors whose term will expire at the second annual
meeting of shareholders occurring after the Effective Time, and one class of
eight directors whose term will expire at the third annual meeting of
shareholders occurring after the Effective Time. Through December 31, 1998, not
more than two directors shall be Insider Directors. "Insider Director" shall
mean any person who, as of immediately prior to the Effective Time, was a
current or former officer of the Corporation or any of its subsidiaries or any
predecessor or constituent (by merger, consolidation, or otherwise) of the
Corporation or any of its subsidiaries, but shall not include H. Douglas Barclay
or Henry S. Hemingway.
 
                                        2
<PAGE>   143
 
     The Board of Directors or the shareholders may from time to time fix or
change the size of the Board of Directors to a total number of no fewer than 20
directors and no more than 24 directors; provided that, through December 31,
1998, no such action shall have the effect of increasing to more than two the
number of Insider Directors; provided, further, that through December 31, 1996,
each increase or decrease in the size of the Board shall be by two or a multiple
of two. The Board of Directors may, subject to the limitations contained in the
immediately preceding sentence regarding the number of directors, the number of
Insider Directors, and the requirement that any increase or decrease in the
number of directors be effected by a multiple of two, fix or change the number
of directors by the affirmative vote of two-thirds of the entire authorized
Board. The shareholders may, subject to the limitations contained in the first
sentence of this paragraph regarding the number of directors, the number of
Insider Directors, and the requirement that any increase or decrease in the
number of directors be effected by a multiple of two, fix or change the number
of directors at a meeting of the shareholders called for the purpose of electing
directors (i) by the affirmative vote of the holders of shares entitling them to
exercise three-quarters of the voting power of the Corporation represented at
the meeting and entitled to elect directors or (ii) if the proposed change in
the number of directors is recommended by two-thirds of the entire authorized
Board of Directors, by the affirmative vote of the holders of shares entitling
them to exercise a majority of the voting power of the Corporation represented
at the meeting and entitled to elect directors. If the Board of Directors or the
shareholders change the number of directors, the three classes of the Board of
Directors shall be divided into as equal a number of directors as possible, with
the Board of Directors or the shareholders, as the case may be, fixing or
determining the adjustment to be made in each class. No reduction in the number
of directors shall of itself have the effect of shortening the term of any
incumbent director. In the event that the Board of Directors increases the
number of directors, it may fill the vacancy or vacancies created by the
increase in the number of directors for the respective unexpired terms in
accordance with the provisions of Sections 4 and 14 of this Article II. In the
event the shareholders increase the number of directors and fail to fill the
vacancy or vacancies created thereby, the Board of Directors may fill such
vacancy or vacancies for the respective unexpired terms in accordance with the
provisions of Sections 4 and 14 of this Article II.
 
     The number of directors and the number of directors of any class may not be
fixed or changed by the shareholders or directors, except (i) by amending these
Regulations in accordance with the provisions of Article X of these Regulations,
(ii) pursuant to an agreement of merger or consolidation recommended by
two-thirds of the members of the entire authorized Board of Directors and
adopted by the shareholders at a meeting held for such purpose by the
affirmative vote of the holders of shares entitling them to exercise a majority
of the voting power of the Corporation on such proposal, or (iii) as provided in
the immediately preceding paragraph of this Section 1 or in the next following
paragraph.
 
     The foregoing provisions of this Section 1 are subject to the automatic
increase by two in the authorized number of directors and the right of the
holders of any class or series of preferred stock of the Corporation to elect
two directors of the Corporation during any time when dividends payable on such
shares are in arrears, all as set forth in the Articles of Incorporation of the
Corporation and/or the express terms of the preferred stock of the Corporation.
 
     Section 2. Chairman of the Board, Chairman of the Executive Committee, and
Chairmen of Other Committees. Except as provided in this Section 2 below, the
Board of Directors may from time to time select from its members one or more
individuals to serve as Chairman of the Board, Chairman of the Executive
Committee, and Chairman of any of the other committees of the Board of
Directors. Except to the extent otherwise provided in Section 2 of Article IV of
these Regulations with respect to the position of Chairman of the Board, these
positions as Chairman of the Board, Chairman of the Executive Committee, and
Chairman of any other committees of the Board of Directors are not officer
positions (and the Corporation shall have no officer position known as Chairman
of the Board), but are strictly director positions, the sole authority and
responsibility of which is to preside at meetings of the shareholders, the
Board, or the applicable committee, as the case may be. Subject to Section 3 of
this Article II and notwithstanding anything to the contrary in this Section 2,
the officer of the Corporation who is the Chief Executive Officer of the
Corporation shall, if he is a director, serve as Chairman of the Board and
Chairman of the Executive Committee. The Chairman of the Board shall, if
present, preside at meetings of the Board of Directors and at meetings of the
shareholders. In the absence of the Chairman of the Board, the President shall
preside at such meetings.
 
                                        3
<PAGE>   144
 
     Section 3. Chairman of the Board and Chairman of the Executive Committee
Through December 31, 1998. In accordance with the Merger Agreement (as defined
in Section 2 of Article IV of these Regulations), it is intended that Victor J.
Riley, Jr. shall be Chairman of the Board and Chairman of the Executive
Committee of the Board of Directors of the Corporation through December 31, 1998
or his earlier failure to continue to be a director of the Corporation, whether
as a result of his death, resignation, removal as provided in Section 13 of this
Article II, or failure to be re-elected at the expiration of his term as
director. In accordance with the Merger Agreement, on December 31, 1998, Victor
J. Riley, Jr. shall cease to be Chairman of the Board and Chairman of the
Executive Committee, unless he shall have earlier ceased to hold those
positions. In accordance with the Merger Agreement, it is intended that Robert
W. Gillespie shall become Chairman of the Board and Chairman of the Executive
Committee of the Corporation on the date (which in no event shall be later than
December 31, 1998) on which Victor J. Riley, Jr. ceases to be Chairman of the
Board and Chairman of the Executive Committee, subject, in all cases, to Robert
W. Gillespie's earlier failure to continue to be a director of the Corporation,
whether as a result of his death, resignation, removal as provided in Section 13
of this Article II, or failure to be re-elected at the expiration of his term as
director. If Victor J. Riley, Jr. shall at any time prior to December 31, 1998
cease to hold for any reason one or both of his positions as Chairman of the
Board and Chairman of the Executive Committee, in accordance with the Merger
Agreement, it is intended that Robert W. Gillespie shall immediately assume any
such position, provided that he is then a director. Prior to Robert W. Gillespie
becoming Chairman of the Board and Chairman of the Executive Committee, no
individual (other than Robert W. Gillespie or any other person designated by
Robert W. Gillespie) shall be designated vice chairman or deputy chairman, or
with any position or title of similar import, of either the Board of Directors
or the Executive Committee. In the event that the Board of Directors of the
Corporation establishes an Executive Committee in accordance with Section 1 of
Article III of these Regulations, in accordance with the Merger Agreement, it is
intended that Victor J. Riley, Jr. and Robert W. Gillespie shall each be members
of the Executive Committee as long as they are members of the Board of
Directors. The provisions of this Section 3 shall apply through December 31,
1998.
 
     Section 4. Nominations. Only persons who are nominated in accordance with
the following procedures shall be eligible for election as directors. Subject to
the rights of the holders of any class or series of preferred stock of the
Corporation, nominations for the election of directors may be made only:
 
          (a) through December 31, 1998, by the affirmative vote of
     three-quarters of the entire authorized Board of Directors and
     three-quarters of the members of the Nominating Committee, if any, then in
     office; provided, however, that if the Nominating Committee is unable, for
     any reason, to approve by the requisite vote a nomination for election of a
     particular director or directors, such nomination shall be made instead by
     the affirmative vote of two-thirds of the entire authorized Board of
     Directors and three-quarters of the members of a committee to be comprised
     of (i) in the case of a nomination for election to fill a director position
     which was originally held at the Effective Time by an individual who had
     been a director of KeyCorp or any of its subsidiaries, all of the directors
     then in office who immediately prior to the Effective Time had been
     directors of KeyCorp or any of its subsidiaries or who have been elected to
     fill a director position originally held by an individual who at the
     Effective Time had been a director of KeyCorp or any of its subsidiaries,
     and (ii) in the case of a nomination for election to fill a director
     position which was originally held at the Effective Time by an individual
     who had been a director of Society Corporation or any of its subsidiaries,
     all of the directors then in office who immediately prior to the Effective
     Time had been directors of Society Corporation or any of its subsidiaries
     or who have been elected to fill a director position originally held by an
     individual who at the Effective Time had been a director of Society
     Corporation or any of its subsidiaries; provided, further, that, in the
     case of a nomination for election to fill a director position which
     resulted from an increase in the size of the Board after the Effective Time
     in accordance with Section 1 of Article II of these Regulations, such
     nomination shall be made by the affirmative vote of three-quarters of the
     entire authorized Board of Directors acting alone if the Nominating
     Committee is unable, for any reason, to approve by the requisite vote a
     nomination to fill such director position,
 
          (b) after December 31, 1998, by the affirmative vote of two-thirds of
     the entire authorized Board of Directors, and
 
                                        4
<PAGE>   145
 
          (c) by any shareholder of the Corporation entitled to vote for the
     election of directors at a meeting, but only if written notice of such
     shareholder's intent to make such nomination is given to the Secretary of
     the Corporation, delivered to or mailed and received at the Corporation's
     principal executive offices, not less than 60 nor more than 90 days prior
     to the meeting; provided, however, that in the event that less than 75
     days' notice to the shareholders or prior public disclosure of the date of
     the meeting is given or made, the written notice of such shareholder's
     intent to make such nomination must be given to the Secretary not later
     than the close of business on the fifteenth day following the earlier of
     the day on which such notice of the date of the meeting was mailed or such
     public disclosure was made. Each such notice of a shareholder's intent to
     make a nomination shall set forth: (A) as to each person who is not an
     incumbent director when the shareholder proposes to nominate such person
     for election as a director, (1) the name, age, business, and residence
     address of such person, (2) the principal occupation or employment of such
     person for the last five years, (3) the class and number of shares of
     capital stock of the Corporation which are beneficially owned by such
     person, (4) all positions of such person as a director, officer, partner,
     employee, or controlling shareholder of any corporation or other business
     entity, (5) any prior position as a director, officer, or employee of a
     depository institution or any company controlling a depository institution,
     (6) any other information regarding such person that would be required
     pursuant to paragraphs (a), (e) and (f) of Item 401 of Regulation S-K
     adopted by the Securities and Exchange Commission (or the corresponding
     provisions of any regulations subsequently adopted by the Securities and
     Exchange Commission applicable to the Corporation) to be included in a
     proxy statement filed pursuant to the proxy rules of the Securities and
     Exchange Commission had such person been nominated, or intended to be
     nominated, by the Board of Directors, and (7) the written consent of each
     nominee to serve as a director of the Corporation if so elected, and (B) as
     to the shareholder giving the notice, (1) the name and record address of
     such shareholder, (2) a representation that the shareholder is a holder of
     record of shares of the Corporation entitled to vote at such meeting and
     intends to appear in person or by proxy at the meeting to nominate the
     person or persons specified in the notice, (3) a description of all
     arrangements or understandings between the shareholder and each nominee and
     any other person or persons (naming such person or persons) pursuant to
     which the nomination or nominations are to be made by the shareholder, and
     (4) the class and number of shares of capital stock of the Corporation
     which are beneficially owned (within the meaning of Rule 13d-3 promulgated
     under the Securities Exchange Act of 1934, as amended) by such shareholder.
 
No person shall be eligible for election as a director unless nominated in
compliance with the foregoing procedure.
 
     Section 5. Quorum, Adjournments, and Manner of Acting. Except as otherwise
provided by law, the Articles of Incorporation of the Corporation, or these
Regulations, a majority of the entire authorized Board of Directors shall
constitute a quorum for the transaction of business at any meeting of the Board.
Except as otherwise provided by law, the Articles of Incorporation of the
Corporation, or these Regulations, the affirmative vote of a majority of the
directors present at any meeting at which a quorum is present shall be the act
of the Board. In the absence of a quorum, a majority of the directors present at
a meeting duly held may adjourn the meeting to another time and place. At any
adjourned meeting at which a quorum is present, any business may be transacted
which might have been transacted at the originally called meeting.
 
     Notwithstanding the foregoing provisions of this Section 5, the affirmative
vote of at least two-thirds of the entire authorized Board of Directors shall be
required for the approval of any of the following transactions: (a) any merger
or consolidation of the Corporation (i) with any interested shareholder, as such
term is defined in Chapter 1704 of the Ohio General Corporation Law, or (ii)
with any other corporation if the merger or consolidation is caused by any
interested shareholder, (b) any recommendation or approval of any transaction as
a result of which any person will become an interested shareholder, (c) any
merger or consolidation involving the Corporation and any other corporation with
assets having an aggregate book value equal to 50% or more of the aggregate book
value of all the assets of the Corporation determined on a consolidated basis,
(d) any liquidation or dissolution of the Corporation, (e) any sale, lease,
exchange, mortgage, pledge, transfer, or other disposition (in one transaction
or a series of transactions) to or with an interested shareholder of assets of
the Corporation which assets have an aggregate book value equal to 10% or more
of the aggregate book value of all the assets of the Corporation determined on a
consolidated basis, (f)
 
                                        5
<PAGE>   146
 
any sale, lease, exchange, mortgage, pledge, transfer, or other disposition (in
one transaction or a series of transactions) to or with any person of assets of
the Corporation which assets have an aggregate book value equal to 25% or more
of the aggregate book value of all the assets of the Corporation determined on a
consolidated basis, (g) any transaction which results in the issuance or
transfer by the Corporation of more than 15% of the voting stock of the
Corporation to any person, (h) any transaction involving the Corporation which
has the effect, directly or indirectly, of increasing the proportionate share of
the stock or securities of any class or series of the Corporation which is owned
by an interested shareholder, (i) any transaction requiring the amendment of any
provision of the Articles of Incorporation of the Corporation if to amend such
provision otherwise would require an affirmative vote of at least two-thirds of
the entire authorized Board of Directors or any transaction requiring the
amendment of any provision of these Regulations if to amend such provision
otherwise would require an affirmative vote of at least two-thirds of the entire
authorized Board of Directors of the Corporation (provided, however, if the
amendment of any provision of these Regulations requires an affirmative vote of
more than two-thirds of the entire authorized Board of Directors, any
transactions having the same effect may only be authorized by the vote required
to amend such provision of these Regulations), and (j) any receipt by an
interested shareholder, other than proportionately as a shareholder of the
Corporation, of the benefit, directly or indirectly, of any loans, advances,
guarantees, pledges, or other financial benefits provided through the
Corporation.
 
     Section 6. Place of Meeting. The Board of Directors may hold its meetings
at such place or places within or without the State of Ohio as the Board may
from time to time determine or as shall be specified or fixed in the respective
notices or waivers of notice thereof.
 
     Section 7. Regular Meetings. Regular meetings of the Board of Directors
shall be held at such times and places as the Board shall from time to time
determine. If any day fixed for a regular meeting shall be a legal holiday under
the laws of the place where the meeting is to be held, the meeting which would
otherwise be held on that day shall be held at the same hour on the next
succeeding business day or at such other time and place as the Board shall
determine.
 
     Section 8. Special Meetings. Special meetings of the Board of Directors
shall be held whenever called by the Chairman of the Board or the President or
by a majority of the directors then in office.
 
     Section 9. Notice of Meetings. Notice of regular meetings of the Board of
Directors or of any adjourned meeting thereof need not be given. Notice of each
special meeting of the Board shall be mailed to each director, addressed to such
director at such director's residence or usual place of business, at least two
days before the day on which the meeting is to be held or shall be sent to such
director at such place by telegraph, telex, or telecopier (or similar facsimile
transmission), or be given personally or by telephone, not later than the day
before the meeting is to be held, but notice need not be given to any director
who shall, either before or after the meeting, submit a signed waiver of such
notice or who shall attend such meeting without protesting prior to or at its
commencement, the lack of notice to such director. Every such notice shall state
the time and place but need not state the purpose of the meeting.
 
     Section 10. Participation in Meeting by Means of Communications Equipment.
Any one or more members of the Board of Directors or any committee thereof may
participate in any meeting of the Board or of any such committee by means of
conference telephone or similar communications equipment by means of which all
persons participating in the meeting can hear each other, and such participation
in a meeting shall constitute presence in person at such meeting.
 
     Section 11. Action Without Meeting. Any action required or permitted to be
taken at any meeting of the Board of Directors or any committee thereof may be
authorized or taken without a meeting with the affirmative vote or approval of,
and in a writing or writings signed by, all the directors or all the committee
members and if the writing or writings are filed with or entered upon the
records of the Corporation.
 
     Section 12. Resignations. Any director of the Corporation may resign at any
time by oral statement to that effect made at a meeting of the Board of
Directors or any committee thereof or by giving written notice to the Board of
Directors, the Chairman of the Board, the President, or the Secretary of the
Corporation. Such resignation shall take effect at the date of receipt of such
notice or at any later date specified therein and,
 
                                        6
<PAGE>   147
 
unless otherwise specified therein, the acceptance of such resignation shall not
be necessary to make it effective.
 
     Section 13. Removal of Directors. The Board of Directors may remove any
director and thereby create a vacancy on the Board: (a) if by order of court he
has been found to be of unsound mind or if he is adjudicated a bankrupt or (b)
if within 60 days from the date of his election he does not qualify by accepting
in writing his election to such office or by acting at a meeting of directors.
 
     All the directors, or all of the directors of a particular class, or any
individual director, may be removed from office, without assigning any cause, by
the affirmative vote of the holders of shares entitling them to exercise three-
quarters of the voting power of the Corporation entitled to elect directors in
place of those to be removed. In case of any such removal, a new director
nominated in accordance with Section 4 of this Article II may be elected at the
same meeting for the unexpired term of each director removed. Failure to elect a
director to fill the unexpired term of any director removed shall be deemed to
create a vacancy on the Board.
 
     Section 14. Vacancies. Any vacancies on the Board of Directors resulting
from death, resignation, removal, or other cause shall only be filled by the
affirmative vote of two-thirds of the remaining directors then in office, even
though less than a quorum of the Board of Directors, or by a sole remaining
director. Newly created directorships resulting from any increase in the number
of directors by action of the Board of Directors shall be filled by the
affirmative vote of two-thirds of the directors then in office, or if not so
filled, by the shareholders at the next annual meeting thereof or at a special
meeting called for that purpose in accordance with Section 3 of Article I of
these Regulations. In the event the shareholders increase the authorized number
of directors in accordance with these Regulations but fail at the meeting at
which such increase is authorized, or an adjournment of that meeting, to elect
the additional directors provided for, or if the shareholders fail at any
meeting to elect the whole authorized number of directors, such vacancies may be
filled by the affirmative vote of two-thirds of the directors then in office.
Any director elected in accordance with the three preceding sentences of this
Section 14 shall hold office for the remainder of the full term of the class of
directors in which the new directorship was created or the vacancy occurred and
until such director's successor shall have been elected and qualified.
Notwithstanding the foregoing provisions of this Section 14, through December
31, 1998, the Board of Directors shall only fill vacancies (however caused) with
persons or candidates who have been nominated or approved by the affirmative
vote of three-quarters of the entire authorized Board of Directors and
three-quarters of the members of the Nominating Committee, if any, or, if the
Nominating Committee is unable, for any reason, to approve by the requisite vote
a nomination to fill a vacancy of a particular director or directors, such
vacancy shall be filled instead by the affirmative vote of two-thirds of the
entire authorized Board of Directors and the applicable committee, if any,
contemplated by the provisos in Section 4(a) of this Article II. The provisions
of this Section 14 shall not restrict the rights of holders of any class or
series of preferred stock of the Corporation to fill vacancies in directors
elected by such holders as provided by the express terms of the preferred stock.
 
                                  ARTICLE III
 
                         EXECUTIVE AND OTHER COMMITTEES
 
     Section 1. Executive Committee. The Board of Directors may, by resolution
adopted by the affirmative vote of at least two-thirds of the entire authorized
Board, designate annually (i) four or more of its members to constitute members
of an Executive Committee of the Board of Directors of the Corporation (the
"Executive Committee") and (ii) one or more of its members to be alternate
members of the Executive Committee to take the place of any absent member or
members at any meeting of the Executive Committee. In accordance with the Merger
Agreement, it is intended that through December 31, 1998, two of the members of
the Executive Committee shall be Victor J. Riley, Jr. and Robert W. Gillespie,
as long as they are directors of the Corporation. The Executive Committee shall
have and may exercise, between meetings of the Board, all the powers and
authority of the Board in the management of the business and affairs of the
Corporation, including, without limitation, the power and authority to declare a
dividend and to authorize the issuance of stock, and may authorize the seal of
the Corporation to be affixed to all papers which may require it, except that
the Executive Committee shall not have such power or authority in reference to
filling vacancies on the Board or on any committee of the Board, including the
Executive Committee.
 
                                        7
<PAGE>   148
 
     The Board shall have power at any time by the affirmative vote of at least
two-thirds of the entire authorized Board to change the membership of the
Executive Committee, to fill all vacancies in it, and to discharge it, either
with or without cause.
 
     Section 2. Nominating Committee. The provisions of this Section 2 shall
apply through December 31, 1998. In accordance with the Merger Agreement, it is
intended that the Board of Directors will, by resolution adopted by the
affirmative vote of at least two-thirds of the entire authorized Board,
designate annually four of its members to constitute members of a Nominating
Committee of the Board of Directors of the Corporation (the "Nominating
Committee") and that the Nominating Committee will consist of two individuals
who were serving as directors of KeyCorp at the Effective Time (one of whom
shall be Victor J. Riley, Jr., as long as he shall be a director of the
Corporation), and two individuals who were serving as directors of Society
Corporation at the Effective Time (one of whom shall be Robert W. Gillespie, as
long as he shall be a director of the Corporation). Vacancies on the Nominating
Committee will be promptly filled by the Board of Directors. The Board of
Directors shall have the power at any time, by the affirmative vote of at least
two-thirds of the entire authorized Board, to change the membership of, to fill
all vacancies in, and to discharge the Nominating Committee, either with or
without cause.
 
     Section 3. Other Committees. The Board of Directors may, by resolution
adopted by the affirmative vote of at least two-thirds of the entire authorized
Board, designate from among its members one or more other committees, each of
which shall (i) consist of not less than three directors, together with such
alternates as the Board of Directors may appoint to take the place of any absent
member or members at any meeting of such committee, and (ii) except as otherwise
prescribed by law, have such authority of the Board as may be specified in the
resolution of the Board designating such committee. The Board shall have power
at any time, by the affirmative vote of at least two-thirds of the entire
authorized Board, to change the membership of, to fill all vacancies in, and to
discharge any such committee, either with or without cause.
 
     Section 4. Procedure, Meetings, and Quorum. Regular meetings of the
Executive Committee or any other committee of the Board of Directors, of which
no notice shall be necessary, may be held at such times and places as may be
fixed by a majority of the members thereof. Special meetings of the Executive
Committee or any other committee of the Board shall be called at the request of
the Chairman of the Board or the President or the Chairman of any committee.
Notice of each special meeting of the Executive Committee or any other committee
of the Board shall be sent by mail to each member thereof at such member's
residence or usual place of business, at least two days before the day on which
the meeting is to be held, or shall be sent to such member at such place by
telegraph, telex, or telecopier (or similar facsimile transmission), or be given
personally or by telephone to each member thereof not later than the day before
the day on which the meeting is to be held, but notice need not be given to any
member who shall, either before or after the meeting, submit a signed waiver of
such notice or who shall attend such meeting without protesting, prior to or at
its commencement, the lack of such notice to such member. Any special meeting of
the Executive Committee or any other committee of the Board shall be a legal
meeting without any notice thereof having been given, if all the members thereof
shall be present thereat. Notice of any adjourned meeting of any committee of
the Board need not be given. The Executive Committee or any other committee of
the Board may adopt such rules and regulations not inconsistent with the
provisions of law, the Articles of Incorporation of the Corporation, or these
Regulations for the conduct of its meetings as the Executive Committee or any
other committee of the Board may deem proper. A majority of the members of the
Executive Committee or any other committee of the Board shall constitute a
quorum for the transaction of business at any meeting, and the vote of a
majority of the members thereof present at any meeting at which a quorum is
present shall be the act of such committee. The Executive Committee or any other
committee of the Board of Directors shall keep written minutes of its
proceedings and shall report on such proceedings to the Board.
 
     Section 5. Chairman of the Executive Committee. The Chairman of the
Executive Committee shall, if present, preside at the meetings of the Executive
Committee. In the absence of the Chairman of the Executive Committee, the
President shall preside at such meetings.
 
                                        8
<PAGE>   149
 
                                   ARTICLE IV
 
                                    OFFICERS
 
     Section 1. Number and Term of Office. The Corporation shall have a Chief
Executive Officer and a President and may have a Chief Operating Officer, one or
more Vice Presidents, one or more of whom may be designated as Executive or
Senior Vice Presidents or by similar titles, a Treasurer, a Secretary, and such
other officers or agents, subordinate to the Chief Executive Officer and the
President, with such titles as the Board of Directors may from time to time
determine, each to have such authority, functions, or duties as in these
Regulations provided or as the Board may from time to time determine, and,
except as provided in Section 2 of this Article IV, each to hold office for such
term as may be prescribed by the Board and until such person's successor shall
have been chosen and shall qualify or until such person's death, retirement,
resignation, or removal as provided in Section 4 of this Article IV. Subject to
the provisions of Section 2 of this Article IV, one person may hold and perform
the duties of any two or more of said offices; provided, however, that no
officer shall execute, acknowledge, or verify any instrument in more than one
capacity if such instrument is required by law, the Articles of Incorporation of
the Corporation, or these Regulations to be executed, acknowledged, or verified
by two or more officers.
 
     Section 2. Chief Executive Officer and President Through December 31, 1998.
The most senior officer of the Corporation shall be the President, who also
shall be the Chief Executive Officer of the Corporation (and may use the term
"Chief Executive Officer" as part of his title) except during periods when there
is a separate office of Chief Executive Officer, in which case the officer
holding the separate office of Chief Executive Officer shall be the most senior
officer of the Corporation and the President shall be the second most senior
officer. Pursuant to the Merger Agreement, at the Effective Time Victor J.
Riley, Jr. is the Chief Executive Officer of the Corporation for a term expiring
on December 31, 1995, or upon his earlier death, retirement, resignation, or
removal as provided in the last sentence of Section 4 of this Article IV. There
shall be a separate office of Chief Executive Officer of the Corporation during
the period from the Effective Time until December 31, 1995 or any earlier date
on which Victor J. Riley, Jr. ceases for any reason (including death,
retirement, resignation, or removal as provided in the last sentence of Section
4 of this Article IV) to be Chief Executive Officer, and as long as Victor J.
Riley, Jr. is the Chief Executive Officer, he shall also hold the office of
Chairman of the Board (which for such period shall be an office of the
Corporation), but there shall be no separate office of Chief Executive Officer
after December 31, 1995 or any earlier date on which Victor J. Riley, Jr. ceases
for any reason (including death, retirement, resignation, or removal as provided
in the last sentence of Section 4 of this Article IV) to be Chief Executive
Officer of the Corporation and after such date the title "Chairman of the Board"
shall only be a director position and not an officer position. Pursuant to the
Merger Agreement, at the Effective Time, Robert W. Gillespie is the President of
the Corporation for a term expiring on December 31, 1998, or upon his earlier
death, retirement, resignation, or removal as provided in the last sentence of
Section 4 of this Article IV. Accordingly, at such time (which in no event shall
be later than December 31, 1995) as Victor J. Riley, Jr. ceases for any reason
to hold the separate office of Chief Executive Officer, Robert W. Gillespie
shall, by virtue of being President, also be the Chief Executive Officer through
the expiration of his term on December 31, 1998, or until his earlier death,
retirement, resignation, or removal as provided in the last sentence of Section
4 of this Article IV. In addition, pursuant to the Merger Agreement, at the
Effective Time, Robert W. Gillespie is the Chief Operating Officer of the
Corporation for a term expiring on the date on which Victor J. Riley, Jr. ceases
to be the Chief Executive Officer (which in no event shall be later than
December 31, 1995). On December 31, 1995, Victor J. Riley, Jr. shall retire from
all positions he then holds as an officer of the Corporation and as an officer
or employee of any or all of its subsidiaries and shall no longer be an officer
of the Corporation or an officer, employee, or director of any of its
subsidiaries. During the terms of their respective Employment Agreements, Victor
J. Riley, Jr. and Robert W. Gillespie shall have the respective powers, and
perform the respective duties, set forth in each of their respective Employment
Agreements (and applicable exhibits, if any, thereto), dated October 1, 1993,
with Society Corporation. Any modification, amendment, or failure to honor the
terms of either of such Employment Agreements at any time during their
respective terms shall require the affirmative vote of three-quarters of the
entire authorized Board of Directors. As used in these Regulations, (i)
"Effective Time" shall have the meaning assigned to it in the Supplemental
Agreement to Agreement and Plan of Merger, dated as of October 1, 1993, by and
between Society Corporation and KeyCorp and (ii) "Merger Agreement" shall mean
 
                                        9
<PAGE>   150
 
the Agreement and Plan of Merger and the related Supplemental Agreement to
Agreement and Plan of Merger, both dated as of October 1, 1993, by and between
Society Corporation and KeyCorp. The provisions of this Section 2 shall apply
through December 31, 1998.
 
     Section 3. Authority and Duties of Officers. The officers of the
Corporation shall have such authority and shall perform such duties as are
customarily incident to their respective offices, or as may be determined by the
Board of Directors, regardless of whether such authority and duties are
customarily incident to such offices.
 
     Section 4. Removal. Except as provided in the last sentence of this Section
4, any officer may at any time be removed, either with or without cause, by the
Board of Directors or any authorized committee thereof, or, except in the case
of any officer elected by the Board or an authorized committee thereof, by any
superior officer upon whom such power may be conferred by the Board or any
authorized committee thereof, in any case without prejudice to the contract
rights, if any, of such officer. Notwithstanding the foregoing, through December
31, 1998, neither Victor J. Riley, Jr. nor Robert W. Gillespie shall be removed
by action of the Board of Directors from any office held by either of them
except by the affirmative vote of three-quarters of the entire authorized Board
of Directors, and in any case without prejudice to the contract rights of either
of them.
 
     Section 5. Resignation. Any officer may resign at any time by giving notice
to the Board of Directors, the Chief Executive Officer, the President, or the
Secretary of the Corporation. Any such resignation shall take effect at the date
of receipt of such notice or at any later date specified therein and, unless
otherwise specified therein, the acceptance of such resignation shall not be
necessary to make it effective.
 
     Section 6. Vacancies. Except as provided in Section 2 of this Article IV
with respect to a vacancy in the office of Chief Executive Officer, a vacancy in
any office because of death, retirement, resignation, removal, or any other
cause may be filled in the manner prescribed in these Regulations for election
to such office.
 
                                   ARTICLE V
 
                                INDEMNIFICATION
 
     The Corporation shall indemnify, to the full extent permitted or authorized
by the Ohio General Corporation Law as it may from time to time be amended, any
person made or threatened to be made a party to any threatened, pending, or
completed action, suit, or proceeding, whether civil, criminal, administrative,
or investigative, by reason of the fact that he is or was a director, officer,
or employee of the Corporation, or is or was serving at the request of the
Corporation as a director, trustee, officer, or employee of a bank, other
corporation, partnership, joint venture, trust, or other enterprise. In the case
of a merger into this Corporation of a constituent corporation which, if its
separate existence had continued, would have been required to indemnify
directors, officers, or employees in specified situations prior to the merger,
any person who served as a director, officer, or employee of the constituent
corporation, or served at the request of the constituent corporation as a
director, trustee, officer, or employee of a bank, other corporation,
partnership, joint venture, trust, or other enterprise, shall be entitled to
indemnification by this Corporation (as the surviving corporation) for acts,
omissions, or other events or occurrences prior to the merger to the same extent
he would have been entitled to indemnification by the constituent corporation if
its separate existence had continued. The indemnification provided by this
Article V shall not be deemed exclusive of any other rights to which any person
seeking indemnification may be entitled under the Articles of Incorporation of
the Corporation or these Regulations, or any agreement, vote of shareholders or
disinterested directors, or otherwise, both as to action in his official
capacity and as to action in another capacity while holding such office, and
shall continue as to a person who has ceased to be a director, trustee, officer,
or employee and shall inure to the benefit of the heirs, executors, and
administrators of such a person.
 
                                       10
<PAGE>   151
 
                                   ARTICLE VI
 
                                 CAPITAL STOCK
 
     Section 1. Certificates for Shares. Certificates representing shares of
stock of each class of the Corporation, whenever authorized by the Board of
Directors, shall be in such form as shall be approved by the Board or by the
Chairman of the Board or President or a Vice President and the Secretary or an
Assistant Secretary or the Treasurer or an Assistant Treasurer. The certificates
representing shares of stock of each class shall be signed by, or in the name
of, the Corporation by the Chairman of the Board or the President or a Vice
President and by the Secretary or an Assistant Secretary or the Treasurer or an
Assistant Treasurer of the Corporation. Any or all such signatures may be
facsimiles, engraved, stamped, or printed if countersigned by an incorporated
transfer agent or registrar. Although any officer, transfer agent or registrar
whose manual or facsimile signature is affixed to such a certificate ceases to
be such officer, transfer agent, or registrar before such certificate has been
delivered, such certificate nevertheless shall be effective in all respects when
delivered. The Corporation may issue shares of any class of its capital stock
without issuing certificates therefor.
 
     Section 2. Transfer of Shares. Transfers of shares of stock of each class
of the Corporation shall be made only on the books of the Corporation by the
holder thereof, or by such holder's attorney thereunto authorized by a power of
attorney duly executed and filed with the Secretary of the Corporation or a
transfer agent for such stock, if any, and on surrender of the certificate or
certificates for such shares properly endorsed or accompanied by a duly executed
stock transfer power and the payment of all taxes thereon. The person in whose
name shares stand on the books of the Corporation shall be deemed the owner
thereof for all purposes as regards the Corporation. No transfer of shares shall
be valid as against the Corporation and its shareholders and creditors for any
purpose until it shall have been entered in the stock records of the Corporation
by an entry showing from and to whom transferred.
 
     Section 3. Lost, Destroyed, and Mutilated Certificates. The holder of any
share of stock of the Corporation shall immediately notify the Corporation of
any loss, theft, destruction, or mutilation of the certificate therefor; the
Corporation may issue to such holder a new certificate or certificates for
shares, upon the surrender of the mutilated certificate or, in the case of loss,
theft, or destruction of the certificate, upon satisfactory proof of such loss,
theft, or destruction; the Corporation, or the transfer agents and registrars
for the stock, may, in their discretion, require the owner of the lost, stolen,
or destroyed certificate, or such person's legal representative, to provide the
Corporation a bond in such sum and with such surety or sureties as they may
direct to indemnify the Corporation and such transfer agents and registrars
against any claim that may be made on account of the alleged loss, theft, or
destruction of any such certificate or the issuance of such new certificate.
 
     Section 4. Regulations. The Board of Directors may make such additional
rules and regulations as it may deem expedient concerning the issue and transfer
of certificates representing shares of stock of each class of the Corporation
and may make such rules and take such action as it may deem expedient concerning
the issue of certificates in lieu of certificates claimed to have been lost,
destroyed, stolen, or mutilated.
 
                                  ARTICLE VII
 
                                  RECORD DATES
 
     For any lawful purpose, including the determination of the shareholders who
are entitled to receive notice of or to vote at a meeting of the shareholders,
the Board of Directors may fix a record date in accordance with the provisions
of the Ohio General Corporation Law. The record date for the purpose of the
determination of the shareholders who are entitled to receive notice of or to
vote at a meeting of the shareholders shall continue to be the record date for
all adjournments of the meeting unless the Board of Directors or the persons who
shall have fixed the original record date shall, subject to the limitations set
forth in the Ohio General Corporation Law, fix another date and shall cause
notice thereof and of the date to which the meeting shall have been adjourned to
be given to shareholders of record as of the newly fixed date in accordance with
the same requirements as those applying to a meeting newly called. The Board of
Directors may close the share transfer books against transfers of shares during
the whole or any part of the period provided for in this Article
 
                                       11
<PAGE>   152
 
VII, including the date of the meeting of the shareholders and the period ending
with the date, if any, to which adjourned. If no record date is fixed therefor,
the record date for determining the shareholders who are entitled to receive
notice of a meeting of the shareholders shall be the date next preceding the day
on which notice is given, and the record date for determining the shareholders
who are entitled to vote at a meeting of shareholders shall be the date next
preceding the day on which the meeting is held.
 
                                  ARTICLE VIII
 
                                 CORPORATE SEAL
 
     The corporate seal of this Corporation shall be circular in form and shall
contain the name of the Corporation. Failure to affix the seal to any instrument
or document executed on behalf of the Corporation shall not affect the validity
of such instrument or document unless otherwise expressly provided by law.
 
                                   ARTICLE IX
 
                                    OFFICES
 
     The headquarters and principal executive offices of the Corporation shall
be located in the City of Cleveland, County of Cuyahoga, State of Ohio. The
Corporation may also have such other office or offices, and keep the books and
records of the Corporation, except as may otherwise be required by law, at such
other place or places, either within or without the State of Ohio, as the Board
of Directors may from time to time determine or the business of the Corporation
may require.
 
                                   ARTICLE X
 
                                   AMENDMENTS
 
     Until December 31, 1998, the provisions of this Article X, Sections 1, 2,
3, 4, 13, and 14 of Article II, Section 2 of Article III, Sections 2 and 4 of
Article IV, and Article IX may only be amended, repealed, or altered (i) by the
affirmative vote of the holders of shares entitling them to exercise
three-quarters of the voting power of the Corporation on such proposal, (ii) if
such amendment, repeal, or alteration is recommended by three-quarters of the
entire authorized Board of Directors, by the affirmative vote of the holders of
shares entitling them to exercise a majority of the voting power of the
Corporation on such proposal, or (iii) without a meeting, by the written consent
of the holders of shares entitling them to exercise 100% of the voting power of
the Corporation on such proposal. Until December 31, 1998, any Regulations other
than those Regulations specifically listed in the immediately preceding
sentence, and after December 31, 1998, any Regulations, may be adopted, amended,
repealed, or altered (i) by the affirmative vote of the holders of shares
entitling them to exercise three-quarters of the voting power of the Corporation
on such proposal, (ii) if such adoption, amendment, repeal, or alteration, is
recommended by two-thirds of the entire authorized Board of Directors, by the
affirmative vote of the holders of shares entitling them to exercise a majority
of the voting power of the Corporation on such proposal, or (iii) without a
meeting, by the written consent of the holders of shares entitling them to
exercise 100% of the voting power of the Corporation on such proposal.
 
     It is the intent that these Regulations be enforced to the maximum extent
permitted by law. If in any judicial proceeding, a court shall refuse to enforce
any provision of these Regulations for the reason that such provision is deemed
to be unenforceable or invalid under applicable law, then it is the intent that
such otherwise unenforceable or invalid provision be enforced and valid to the
maximum extent permitted by applicable law. The invalidity or unenforceability
of any provision of these Regulations shall not invalidate or render
unenforceable any other provision of these Regulations, as each provision is
intended to be severable.
 
                                       12
<PAGE>   153
 
                                                                     EXHIBIT III
 
     Directors Whose Term Expires at the Annual Meeting of Shareholders of the
Surviving Corporation to Occur During 1994:
 
                            1. William G. Bares
                            2. Lucie J. Fjeldstad
                            3. Robert W. Gillespie
                            4. Henry S. Hemingway
                            5. Steven A. Minter
                            6. Victor J. Riley, Jr.
                            7. Ronald B. Stafford
 
     Directors Whose Term Expires at the Annual Meeting of Shareholders of the
Surviving Corporation to Occur During 1995:
 
                            1. H. Douglas Barclay
                            2. Thomas A. Commes
                            3. Stephen R. Hardis
                            4. Lawrence A. Leser
                            5. John C. Morley
                            6. Peter G. Ten Eyck, II
                            7. Nancy B. Veeder
 
     Directors Whose Term Expires at the Annual Meeting of Shareholders of the
Surviving Corporation to Occur During 1996:
 
                            1. Robert A. Schumacher
                            2. Albert C. Bersticker
                            3. Kenneth M. Curtis
                            4. John C. Dimmer
                            5. Charles R. Hogan
                            6. M. Thomas Moore
                            7. Richard W. Pogue
                            8. Dennis W. Sullivan
<PAGE>   154
 
                                                                    APPENDIX II.
<PAGE>   155
 
                                                                     APPENDIX II
 
                      SUPPLEMENTAL AGREEMENT TO AGREEMENT
 
                               AND PLAN OF MERGER
 
                                 BY AND BETWEEN
 
                                    KEYCORP
 
                                      AND
 
                              SOCIETY CORPORATION
<PAGE>   156
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                         PAGE
                                                                                       --------
<C>       <S>                                                                          <C>
          Parties..................................................................        5
          Preamble.................................................................        5
                                           ARTICLE ONE
                                           DEFINITIONS
 1.1      Acquisition Transaction..................................................        5
 1.2      BHC Act..................................................................        6
 1.3      Closing..................................................................        6
 1.4      Effective Time...........................................................        6
 1.5      ERISA....................................................................        6
 1.6      Exchange Ratio...........................................................        6
 1.7      Exhibits.................................................................        6
 1.8      Federal Reserve..........................................................        6
 1.9      GAAP.....................................................................        6
 1.10     Home Owners Loan Act.....................................................        6
 1.11     Insider Director.........................................................        6
 1.12     Internal Revenue Code....................................................        6
 1.13     Joint Proxy Statement....................................................        6
 1.14     KeyCorp Capital Stock....................................................        6
 1.15     KeyCorp Common Stock.....................................................        6
 1.16     KeyCorp Companies........................................................        6
 1.17     KeyCorp Financial Statements.............................................        6
 1.18     KeyCorp Rights Plan......................................................        7
 1.19     KeyCorp Series B Preferred Stock.........................................        7
 1.20     KeyCorp Stock Option Agreement...........................................        7
 1.21     KeyCorp Stock Option Plans...............................................        7
 1.22     KeyCorp Subsidiaries.....................................................        7
 1.23     Merger...................................................................        7
 1.24     Merger Agreement.........................................................        7
 1.25     New York Certificate of Merger...........................................        7
 1.26     NYSE.....................................................................        7
 1.27     1933 Act.................................................................        7
 1.28     1934 Act.................................................................        7
 1.29     Ohio Certificate of Merger...............................................        7
 1.30     OTS......................................................................        7
 1.31     Party....................................................................        7
 1.32     Previously Disclosed.....................................................        7
 1.33     Registration Statement...................................................        7
 1.34     Regulatory Authorities...................................................        8
 1.35     Repurchase Event.........................................................        8
 1.36     Society Common Stock.....................................................        8
 1.37     Society Companies........................................................        8
 1.38     Society Financial Statements.............................................        8
 1.39     Society Rights Plan......................................................        8
 1.40     Society Stock Option Agreement...........................................        8
 1.41     Society Stock Option Plans...............................................        8
 1.42     Society Subsidiaries.....................................................        8
 1.43     SEC......................................................................        8
 1.44     SEC Documents............................................................        8
 1.45     Securities Laws..........................................................        9
 1.46     State Regulatory Commissioners...........................................        9
</TABLE>
 
                                        1
<PAGE>   157
 
<TABLE>
<CAPTION>
                                                                                         PAGE
                                                                                       --------
<C>       <S>                                                                          <C>
 1.47     Shareholders' Meetings...................................................        9
 1.48     Subsidiaries.............................................................        9
 1.49     Supplemental Agreement...................................................        9
 1.50     Surviving Corporation Articles of Incorporation..........................        9
 1.51     Surviving Corporation Capital Stock......................................        9
 1.52     Surviving Corporation Common Stock.......................................        9
 1.53     Surviving Corporation Regulations........................................        9
 1.54     Surviving Corporation Class A Preferred Stock............................        9
                                           ARTICLE TWO
                                 TRANSACTIONS AND TERMS OF MERGER
 2.1      Execution of Stock Option Agreements.....................................        9
 2.2      Merger...................................................................        9
                                          ARTICLE THREE
                                    CLOSING AND EFFECTIVE TIME
 3.1      Time and Place of Closing................................................       10
 3.2      Effective Time...........................................................       10
                                          ARTICLE FOUR
                  STRUCTURE OF THE SURVIVING CORPORATION AND RELATED MATTERS
 4.1      Assumption of Obligations by Surviving Corporation.......................       10
 4.2      Board of Directors.......................................................       10
 4.3      Management...............................................................       12
 4.4      Headquarters of the Surviving Corporation................................       12
 4.5      Indemnification..........................................................       12
 4.6      Director and Officer Liability Insurance.................................       13
                                         ARTICLE FIVE
                          REPRESENTATIONS AND WARRANTIES OF KEYCORP
 5.1      Organization, Standing, and Authority....................................       13
 5.2      Capital Stock............................................................       13
 5.3      KeyCorp Subsidiaries.....................................................       14
 5.4      Authority................................................................       14
 5.5      Financial Statements.....................................................       15
 5.6      Absence of Undisclosed Liabilities.......................................       16
 5.7      Tax Matters..............................................................       16
 5.8      Allowance for Possible Loan Losses.......................................       16
 5.9      Properties...............................................................       16
 5.10     Compliance with Laws.....................................................       17
 5.11     Employee Benefit Plans...................................................       17
 5.12     Material Contracts.......................................................       18
 5.13     Material Contract Defaults...............................................       18
 5.14     Legal Proceedings........................................................       18
 5.15     Absence of Certain Changes or Events.....................................       18
 5.16     Reports..................................................................       18
 5.17     Statements True and Correct..............................................       18
 5.18     Environmental Matters....................................................       19
</TABLE>
 
                                        2
<PAGE>   158
 
<TABLE>
<CAPTION>
                                                                                         PAGE
                                                                                       --------
<C>       <S>                                                                          <C>
 5.19     Knowledge as to Conditions...............................................       20
 5.20     Antitakeover Provisions Inapplicable.....................................       20
 5.21     Labor Matters............................................................       20
                                            ARTICLE SIX
                            REPRESENTATIONS AND WARRANTIES OF SOCIETY
 6.1      Organization, Standing, and Authority....................................       20
 6.2      Capital Stock............................................................       20
 6.3      Society Subsidiaries.....................................................       21
 6.4      Authority................................................................       21
 6.5      Financial Statements.....................................................       22
 6.6      Absence of Undisclosed Liabilities.......................................       23
 6.7      Tax Matters..............................................................       23
 6.8      Allowance for Possible Loan Losses.......................................       23
 6.9      Properties...............................................................       23
 6.10     Compliance with Laws.....................................................       24
 6.11     Employee Benefit Plans...................................................       24
 6.12     Material Contracts.......................................................       25
 6.13     Material Contract Defaults...............................................       25
 6.14     Legal Proceedings........................................................       25
 6.15     Absence of Certain Changes or Events.....................................       25
 6.16     Reports..................................................................       25
 6.17     Statements True and Correct..............................................       25
 6.18     Environmental Matters....................................................       26
 6.19     Knowledge as to Conditions...............................................       27
 6.20     Antitakeover Provisions Inapplicable.....................................       27
 6.21     Labor Matters............................................................       27
                                         ARTICLE SEVEN
                                   COVENANTS AND AGREEMENTS
 7.1      Conduct of Business -- Negative Covenants................................       27
 7.2      Conduct of Business -- Affirmative Covenants.............................       29
 7.3      Adverse Changes in Condition.............................................       29
 7.4      Investigation and Confidentiality........................................       29
 7.5      Reports..................................................................       30
 7.6      Dividends................................................................       30
 7.7      Capital Stock............................................................       30
 7.8      Agreement of Affiliates..................................................       31
 7.9      Certain Actions..........................................................       31
 7.10     Agreement as to Efforts to Consummate....................................       31
                                         ARTICLE EIGHT
                                    ADDITIONAL AGREEMENTS
 8.1      Registration Statement; Shareholder Approval.............................       32
 8.2      Filings with the State Offices...........................................       32
 8.3      Tax Opinion..............................................................       32
 8.4      Accounting Treatment.....................................................       32
 8.5      Press Releases...........................................................       33
 8.6      Applications.............................................................       33
 8.7      NYSE Listing.............................................................       33
</TABLE>
 
                                        3
<PAGE>   159
 
   
<TABLE>
<CAPTION>
                                                                                         PAGE
                                                                                       --------
<C>       <S>                                                                          <C>
                                                                                ARTICLE NINE
                                           CONDITIONS PRECEDENT TO OBLIGATIONS TO CONSUMMATE
 9.1      Representations and Warranties...........................................       33
 9.2      Performance of Agreements and Covenants..................................       33
 9.3      Certificates.............................................................       33
 9.4      Shareholder Approvals....................................................       33
 9.5      Consents and Approvals...................................................       34
 9.6      Legal Proceedings........................................................       34
 9.7      Accountants' Letters.....................................................       34
 9.8      Tax Matters..............................................................       34
 9.9      Registration Statement...................................................       34
 9.10     Rights Plans.............................................................       34
                                                                                 ARTICLE TEN
                                                                                 TERMINATION
10.1      Termination..............................................................       35
10.2      Effect of Termination....................................................       35
10.3      Survival of Representations, Warranties, and Covenants...................       35
                                                                              ARTICLE ELEVEN
                                                                               MISCELLANEOUS
11.1      Expenses.................................................................       36
11.2      Brokers and Finders......................................................       36
11.3      Entire Agreement.........................................................       36
11.4      Amendments...............................................................       37
11.5      Waivers..................................................................       37
11.6      No Assignment............................................................       37
11.7      Specific Enforceability..................................................       37
11.8      Notices..................................................................       37
11.9      Governing Law............................................................       38
11.10     Counterparts.............................................................       38
11.11     Captions.................................................................       38
          Testimonium..............................................................       39
          Signatures...............................................................       39
                                                                            LIST OF EXHIBITS
 I        Form of KeyCorp Stock Option Agreement (Section 1.20).
II        Form of Agreement and Plan of Merger for the merger of KeyCorp into and
            with Society (Section 1.24).
III       Form of Third Amendment to Rights Plan (Section 1.39).
IV        Form of Society Corporation Stock Option Agreement (Section 1.40).
 V        (A) Form of Agreement of Affiliates of Keycorp (Section 7.8).
          (B) Form of Agreement of Affiliates of Society (Section 7.8).
                                            LIST OF EXHIBITS TO AGREEMENT AND PLAN OF MERGER
 I        Articles of Incorporation of the Surviving Corporation (Section 2.3 of
            the Merger Agreement).
II        Regulations of the Surviving Corporation (Section 2.4 of the Merger
            Agreement).
III       List of Directors of the Surviving Corporation (Section 2.5 of the Merger
            Agreement).
</TABLE>
    
 
                                        4
<PAGE>   160
 
                      SUPPLEMENTAL AGREEMENT TO AGREEMENT
                               AND PLAN OF MERGER
 
     THIS SUPPLEMENTAL AGREEMENT TO AGREEMENT AND PLAN OF MERGER (the
"Supplemental Agreement") is made and entered into as of the 1st day of October,
1993, by and between KeyCorp, a corporation organized and existing under the
laws of the State of New York, with its principal office located in Albany, New
York ("KeyCorp"), and Society Corporation, a corporation organized and existing
under the laws of the State of Ohio, with its principal office located in
Cleveland, Ohio ("Society"). Except as otherwise provided herein, the
capitalized terms used in this Supplemental Agreement shall have the meanings
set forth herein.
 
                                    PREAMBLE
 
     KeyCorp and Society are registered bank holding companies under the Bank
Holding Company Act of 1956, as amended, and Society is registered as a savings
and loan holding company under the Home Owners Loan Act of 1933, as amended. The
Boards of Directors of KeyCorp and Society are of the opinion that the
transactions described herein are in the best long-term and short-term interests
of the Parties and their respective shareholders, employees, customers, and
creditors, and the communities in which they do business, among others. At the
Effective Time, (i) KeyCorp shall be merged into and with Society so that
Society will be the surviving corporation under the name Key Bancshares Inc.
(the "Surviving Corporation"), and (ii) except as provided in the Merger
Agreement, the outstanding shares of the capital stock of KeyCorp shall be
converted into shares of the capital stock of the Surviving Corporation. The
Merger is subject to the approvals of the shareholders of KeyCorp, the
shareholders of Society, the Board of Governors of the Federal Reserve System,
the State Regulatory Commissioners, and various other regulatory authorities,
and the satisfaction of certain other conditions described in this Supplemental
Agreement.
 
     As an inducement to and condition of Society's execution of this
Supplemental Agreement, KeyCorp has approved the grant of an option to Society
pursuant to the KeyCorp Stock Option Agreement and as an inducement to and
condition of KeyCorp's execution of this Supplemental Agreement, Society has
approved the grant to KeyCorp of an option pursuant to the Society Stock Option
Agreement, each in the form attached hereto, simultaneously with the execution
of this Supplemental Agreement. It is intended by the Parties that the Merger
shall be accounted for as a "pooling of interests" and that it shall, for
federal income tax purposes, qualify as a tax-free reorganization under Section
368(a)(1)(A) of the Internal Revenue Code.
 
     In consideration of the above and the mutual warranties, representations,
covenants, and agreements set forth herein, the parties agree as follows:
 
                                  ARTICLE ONE
 
                                  DEFINITIONS
 
     Except as otherwise provided herein, the capitalized terms set forth below
(in their singular and plural forms as applicable) shall have the following
meanings:
 
     1.1 "ACQUISITION TRANSACTION" shall, with respect to either Party, mean any
of the following: (i) a merger or consolidation, or any similar transaction
(other than the Merger and the acquisition transactions permitted under Section
7.1(d) of this Supplemental Agreement), of any company with such Party or any
significant subsidiary (as defined in Rule 1.02 of Regulation S-X of the SEC) (a
"Significant Subsidiary") of such Party, (ii) a purchase, lease, or other
acquisition of all or substantially all the assets of such Party or any
Significant Subsidiary of such Party, (iii) a purchase or other acquisition of
beneficial ownership by any person or "group" (as such term is defined in
Section 13(d)(3) of the 1934 Act) (including by way of merger, consolidation,
share exchange, or otherwise) of securities representing 10% or more of the
voting power of such Party or any Significant Subsidiary of such Party, but
excluding the acquisition of beneficial ownership by any employee benefit plan
maintained or sponsored by such Party, (iv) a tender or exchange offer to
acquire securities representing 10% or more of the voting power of such Party,
(v) a public proxy or consent solicitation made to shareholders of such Party
seeking proxies in opposition to any proposal
 
                                        5
<PAGE>   161
 
that has been recommended by the Board of Directors of such Party, (vi) the
filing of an application or notice with the Federal Reserve, or other federal or
state bank regulatory authority (which application has been accepted for
processing) seeking approval to engage in one or more of the transactions
referenced in clauses (i) through (iv) above, or (vii) the making of a bona fide
proposal to such Party or its shareholders by public announcement or written
communication that is or becomes the subject of public disclosure to engage in
one or more of the transactions referenced in clauses (i) through (v) above.
 
     1.2 "BHC ACT" shall mean the federal Bank Holding Company Act of 1956, as
amended.
 
     1.3 "CLOSING" shall mean the closing of the transactions contemplated
hereunder which, unless the Parties otherwise agree, will take place at the
Effective Time, as described in Section 3.1 of this Supplemental Agreement.
 
     1.4 "EFFECTIVE TIME" shall mean the date and time at which the Merger
contemplated by this Supplemental Agreement becomes effective as described in
Section 3.2 of this Supplemental Agreement.
 
     1.5 "ERISA" shall mean the Employee Retirement Income Security Act of 1974,
as amended.
 
     1.6 "EXCHANGE RATIO" shall mean the multiple of a share of the Surviving
Corporation Common Stock applied to convert shares of KeyCorp Common Stock into
shares of the Surviving Corporation Common Stock as specified in the Merger
Agreement.
 
     1.7 "EXHIBITS" I, II, III, IV, and V(A) and (B) shall mean the Exhibits so
marked, copies of which are attached to this Supplemental Agreement. Such
Exhibits are hereby incorporated by reference herein and made a part hereof, and
may be referred to in this Supplemental Agreement and any other related
instrument or document without being attached thereto.
 
     1.8 "FEDERAL RESERVE" shall mean the Board of Governors of the Federal
Reserve System, the Federal Reserve Bank of New York, and the Federal Reserve
Bank of Cleveland.
 
     1.9 "GAAP" shall mean generally accepted accounting principles consistently
applied.
 
     1.10 "HOME OWNERS LOAN ACT" shall mean the Home Owners Loan Act, as
amended.
 
     1.11 "INSIDER DIRECTOR" shall mean, with respect to Society, any person
who, as of immediately prior to the Effective Time, was a current or former
officer of Society or any of its Subsidiaries or any predecessor or constituent
(by merger, consolidation, or otherwise) of Society or any of its Subsidiaries,
and, with respect to KeyCorp, any person who, as of immediately prior to the
Effective Time, was a current or former officer of KeyCorp or any of its
Subsidiaries or any predecessor or constituent (by merger, consolidation, or
otherwise) of KeyCorp or any of its Subsidiaries, but shall not include H.
Douglas Barclay or Henry S. Hemingway.
 
     1.12 "INTERNAL REVENUE CODE" shall mean the Internal Revenue Code of 1986,
as amended.
 
     1.13 "JOINT PROXY STATEMENT" shall mean the proxy statement used by KeyCorp
and Society to solicit the approval of their shareholders of the transactions
contemplated by this Supplemental Agreement and the Merger Agreement.
 
     1.14 "KEYCORP CAPITAL STOCK" shall mean, collectively, the KeyCorp Common
Stock and the KeyCorp Series B Preferred Stock.
 
     1.15 "KEYCORP COMMON STOCK" shall mean the Common Shares, par value $5.00
per share, of KeyCorp.
 
     1.16 "KEYCORP COMPANIES" shall mean, collectively, KeyCorp and all KeyCorp
Subsidiaries.
 
     1.17 "KEYCORP FINANCIAL STATEMENTS" shall mean (i) the consolidated balance
sheets (including related notes and schedules, if any) of KeyCorp as of June 30,
1993, and as of December 31, 1992, 1991 and 1990, and the related consolidated
statements of income, of changes in shareholders' equity, and of cash flows
(including related notes and schedules, if any) for the six months ended June
30, 1993, and for each of the three years ended December 31, 1992, 1991, and
1990, as filed by KeyCorp in SEC Documents and (ii) the consolidated balance
sheets of KeyCorp (including related notes and schedules, if any) and
 
                                        6
<PAGE>   162
 
related consolidated statements of income, of changes in shareholders' equity,
and of cash flows (including related notes and schedules, if any) included in
SEC Documents filed with respect to periods ended subsequent to June 30, 1993.
 
     1.18 "KEYCORP RIGHTS PLAN" shall mean the Shareholder Protection Rights
Agreement, dated October 1, 1993, between KeyCorp and Key Trust Company, as
rights agent.
 
     1.19 "KEYCORP SERIES B PREFERRED STOCK" shall mean the 10% Cumulative
Preferred Stock, Series B, par value $5.00 per share, of KeyCorp.
 
     1.20 "KEYCORP STOCK OPTION AGREEMENT" shall mean the KeyCorp Stock Option
Agreement, in the form attached hereto as Exhibit I, dated October 2, 1993,
between KeyCorp and Society.
 
     1.21 "KEYCORP STOCK OPTION PLANS" shall mean the following employee and
director stock option and stock appreciation rights plans of KeyCorp: (i)
KeyCorp 1984 Stock Option Plan, (ii) KeyCorp 1987 Directors' Stock Option Plan,
(iii) KeyCorp 1988 Stock Option Plan, and (iv) any additional employee stock
option plans and stock appreciation rights plans assumed by KeyCorp in
connection with any acquisition transaction involving KeyCorp and permitted
under Section 7.1(d) of this Supplemental Agreement, in each case as amended.
 
     1.22 "KEYCORP SUBSIDIARIES" shall mean the Subsidiaries of KeyCorp, which
shall include the KeyCorp Subsidiaries described in Section 5.3 of this
Supplemental Agreement and any corporation, bank, savings bank, association, or
other entity acquired as a Subsidiary of KeyCorp in the future.
 
     1.23 "MERGER" shall mean the merger of KeyCorp into and with Society as
provided in this Supplemental Agreement and the Merger Agreement.
 
     1.24 "MERGER AGREEMENT" shall mean the Agreement and Plan of Merger
providing for the Merger substantially in the form of Exhibit II.
 
     1.25 "NEW YORK CERTIFICATE OF MERGER" shall mean the certificate of merger
providing for the Merger which is to be filed by the Surviving Corporation with
the New York Department of State, signed and verified on behalf of KeyCorp and
Society, and containing the information and attachments prescribed by Section
907(e) of the New York Business Corporation Law.
 
     1.26 "NYSE" shall mean the New York Stock Exchange, Inc.
 
     1.27 "1933 ACT" shall mean the Securities Act of 1933, as amended.
 
     1.28 "1934 ACT" shall mean the Securities Exchange Act of 1934, as amended.
 
     1.29 "OHIO CERTIFICATE OF MERGER" shall mean the certificate of merger
providing for the Merger which is to be filed with the Ohio Secretary of State,
signed on behalf of KeyCorp and Society, and containing the information and
attachments prescribed by Section 1701.81 of the Ohio General Corporation Law.
 
     1.30 "OTS" shall mean the Office of Thrift Supervision.
 
     1.31 "PARTY" shall mean either KeyCorp or Society, and "Parties" shall mean
both KeyCorp and Society.
 
     1.32 "PREVIOUSLY DISCLOSED" shall mean information set forth in a
disclosure letter by either Party to the other delivered to such other Party
prior to or contemporaneously with the execution and delivery of this
Supplemental Agreement and accepted by such other Party (such acceptance to be
evidenced by such other Party executing an acknowledgement of acceptance on such
disclosure letter).
 
     1.33 "REGISTRATION STATEMENT" shall mean the Registration Statement on Form
S-4 and all amendments and supplements thereto (including amendments thereto on
Form S-8 with respect to KeyCorp Stock Option Plans and Society Stock Option
Plans), or other appropriate form, filed with the SEC by Society under the 1933
Act in connection with the transactions contemplated by this Supplemental
Agreement.
 
                                        7
<PAGE>   163
 
     1.34 "REGULATORY AUTHORITIES" shall mean, collectively, the Federal
Reserve, the State Regulatory Commissioners, and any other federal or state
banking, insurance, securities, or other regulatory authority whose approval is
necessary to consummate the transactions contemplated by this Supplemental
Agreement.
 
     1.35 "REPURCHASE EVENT" shall, with respect to KeyCorp, have the meaning
given to the term "Subsequent Triggering Event" in the KeyCorp Stock Option
Agreement and, with respect to Society, have the meaning given to the term
"Subsequent Triggering Event" in the Society Stock Option Agreement.
 
     1.36 "SOCIETY COMMON STOCK" shall mean the Common Shares, with a par value
of $1 each, of Society.
 
     1.37 "SOCIETY COMPANIES" shall mean, collectively, Society and all Society
Subsidiaries.
 
     1.38 "SOCIETY FINANCIAL STATEMENTS" shall mean (i) the consolidated balance
sheets (including related notes and schedules, if any) of Society as of June 30,
1993, and as of December 31, 1992, 1991 and 1990, and the related consolidated
statements of income, of changes in shareholders' equity, and of cash flows
(including related notes and schedules, if any) for the six months ended June
30, 1993, and for each of the three years ended December 31, 1992, 1991, and
1990, as filed by Society in SEC Documents and (ii) the consolidated balance
sheets of Society (including related notes and schedules, if any) and related
consolidated statements of income, of changes in shareholders' equity, and of
cash flows (including related notes and schedules, if any) included in SEC
Documents filed with respect to periods ended subsequent to June 30, 1993.
 
     1.39 "SOCIETY RIGHTS PLAN" shall mean the Rights Agreement, dated August
25, 1989, between Society and First Chicago Trust Company of New York, as rights
agent ("FCTCNY"), as modified and amended by a First Amendment to Rights
Agreement, dated February 21, 1991, between Society and FCTCNY, by a Second
Amendment to Rights Agreement, dated as of September 12, 1991, between Society
and FCTCNY, by letter of resignation of FCTCNY dated June 26, 1992, and letter
of Society, dated June 26, 1992, to Ameritrust Company National Association (now
Society National Bank by merger) appointing Ameritrust Company National
Association as rights agent, and a Third Amendment to Rights Plan, in the form
attached hereto as Exhibit III, dated the date hereof, between Society and
Society National Bank as rights agent.
 
     1.40 "SOCIETY STOCK OPTION AGREEMENT" shall mean the Society Stock Option
Agreement, in the form attached hereto as Exhibit IV, dated October 2, 1993,
between Society and KeyCorp.
 
     1.41 "SOCIETY STOCK OPTION PLANS" shall mean the following employee stock
option and stock appreciation rights plans of Society: (i) Society Corporation
1977 Stock Option Plan, (ii) Society Corporation 1984 Stock Option Plan, (iii)
Society Corporation 1977 Stock Appreciation Rights Plan, (iv) Society
Corporation 1984 Stock Appreciation Rights Plan, (v) Centran Corporation 1984
Stock Option Plan, (vi) Society Corporation 1988 Stock Option Plan, (vii)
Society Corporation 1988 Stock Appreciation Rights Plan, (viii) 1987 Stock
Option Plan of Trustcorp, Inc., (ix) 1981 Incentive Stock Option Plan of Toledo
Trustcorp, Inc., (x) Society Corporation 1991 Equity Compensation Plan, (xi)
1985 St. Joseph Bancorporation, Inc. Master Stock Compensation Plan, (xii)
Ameritrust Stock Option Plan (formerly Ameritrust Long-Term Incentive Plan), and
(xiii) any additional employee stock option plans and stock appreciation rights
plans assumed by Society in connection with any acquisition transaction
involving Society and permitted under Section 7.1(d) of this Supplemental
Agreement, in each case as amended.
 
     1.42 "SOCIETY SUBSIDIARIES" shall mean the Subsidiaries of Society, which
shall include the Society Subsidiaries described in Section 6.3 of this
Supplemental Agreement and any corporation, bank, savings bank, association, or
other entity acquired as a Subsidiary of Society in the future.
 
     1.43 "SEC" shall mean the Securities and Exchange Commission.
 
     1.44 "SEC DOCUMENTS" shall mean all reports and registration statements
filed by a Party or one of its Subsidiaries pursuant to the Securities Laws.
 
                                        8
<PAGE>   164
 
     1.45 "SECURITIES LAWS" shall mean the 1933 Act, the 1934 Act, the
Investment Company Act of 1940, as amended, the Investment Advisors Act of 1940,
as amended, the Trust Indenture Act of 1939, as amended, and the rules and
regulations of the SEC promulgated thereunder.
 
     1.46 "STATE REGULATORY COMMISSIONERS" shall mean any state banking,
insurance, securities, or other regulatory authority whose approval is necessary
to consummate the transactions contemplated by this Supplemental Agreement, the
Merger Agreement, the KeyCorp Stock Option Agreement, and the Society Stock
Option Agreement.
 
     1.47 "SHAREHOLDERS' MEETINGS" shall mean the meetings of the shareholders
of KeyCorp and Society to be held pursuant to Section 8.1 of this Supplemental
Agreement, including any adjournments thereof.
 
     1.48 "SUBSIDIARIES" shall mean all those corporations, banks, savings
banks, associations, and other entities of which the Party in question owns or
controls 5% or more of the outstanding equity securities either directly or
through an unbroken chain of entities as to each of which 5% or more of the
outstanding equity securities is owned directly or indirectly by its parent;
provided, however, there shall not be included any such entity acquired in good
faith through foreclosure, or any such entity to the extent that the equity
securities of such entity are owned or controlled in a bona fide fiduciary
capacity, through a small business investment corporation, or otherwise as an
investment by an entity that invests in unaffiliated companies in the ordinary
course of business.
 
     1.49 "SUPPLEMENTAL AGREEMENT" shall mean this Supplemental Agreement to
Agreement and Plan of Merger.
 
     1.50 "SURVIVING CORPORATION ARTICLES OF INCORPORATION" shall mean the
Articles of Incorporation of the Surviving Corporation.
 
     1.51 "SURVIVING CORPORATION CAPITAL STOCK" shall mean, collectively, the
Surviving Corporation Common Stock and the Surviving Corporation Class A
Preferred Stock.
 
     1.52 "SURVIVING CORPORATION COMMON STOCK" shall mean the Common Shares,
with a par value of $1 each, of the Surviving Corporation.
 
     1.53 "SURVIVING CORPORATION REGULATIONS" shall mean the Regulations of the
Surviving Corporation.
 
     1.54 "SURVIVING CORPORATION CLASS A PREFERRED STOCK" shall mean the 10%
Cumulative Preferred Stock, Class A, par value $5.00 per share, of the Surviving
Corporation.
 
                                  ARTICLE TWO
 
                        TRANSACTIONS AND TERMS OF MERGER
 
     2.1 EXECUTION OF STOCK OPTION AGREEMENTS. Simultaneously with the execution
of this Supplemental Agreement by the Parties and as a condition thereto,
KeyCorp and Society have approved the execution and delivery of the KeyCorp
Stock Option Agreement and the Society Stock Option Agreement and, on October 2,
1993, the Parties will execute and deliver the KeyCorp Stock Option Agreement
and the Society Stock Option Agreement. Simultaneously with the execution of
this Supplemental Agreement, KeyCorp is executing and delivering the KeyCorp
Rights Plan.
 
     2.2 MERGER. Subject to the terms and conditions of this Supplemental
Agreement and the Merger Agreement, at the Effective Time, KeyCorp will be
merged into and with Society in accordance with the provisions of Section 907 of
the New York Business Corporation Law and Section 1701.78 of the Ohio General
Corporation Law. Society shall be the Surviving Corporation resulting from the
Merger and shall continue to be governed by the laws of the State of Ohio. The
Articles of Incorporation and Regulations of the Surviving Corporation in the
Merger shall be in the forms attached as Exhibits I and II, respectively, to the
Merger Agreement. The Merger shall be consummated pursuant to the terms of this
Supplemental Agreement and the Merger Agreement, each of which has been
authorized by the respective Boards of
 
                                        9
<PAGE>   165
 
Directors of KeyCorp and Society. The Merger Agreement provides for the terms
and conditions of the Merger, which terms are incorporated herein and made a
part of this Supplemental Agreement by reference.
 
                                 ARTICLE THREE
 
                           CLOSING AND EFFECTIVE TIME
 
     3.1 TIME AND PLACE OF CLOSING. The Closing will take place at 10:00 A.M. on
the date that the Effective Time occurs, or at such other time as the Parties,
acting through their chief executive officers or chief financial officers, may
mutually agree. The place of Closing shall be at such place as may be mutually
agreed upon by the Parties.
 
     3.2 EFFECTIVE TIME. The Merger shall become effective at the time and date
which is the later of the time at which (i) the New York Certificate of Merger
is accepted for filing by the New York Department of State (or such other time
as is specified therein) and (ii) the Ohio Certificate of Merger is filed with
the Secretary of State of the State of Ohio (or such other time as is specified
therein). The Parties shall cause the Effective Time to occur on the first
business day following the last to occur of (i) the date that is 30 days after
the date of the order of the Federal Reserve approving the Merger pursuant to
the BHC Act, (ii) the effective date (including expiration of any applicable
waiting period) of the order of the final federal or state regulatory agency
approving the Merger or the expiration of all required waiting periods after the
filing of all required notices to all federal or state regulatory agencies
required to consummate the Merger, and (iii) the date on which the shareholders
of KeyCorp and Society approve this Supplemental Agreement and the Merger
Agreement, to the extent such approval is required by applicable law.
Notwithstanding anything to the contrary in this Section 3.2, the Parties may
cause the Effective Time to occur on such later date as may be agreed to in
writing by the Parties.
 
                                  ARTICLE FOUR
 
           STRUCTURE OF THE SURVIVING CORPORATION AND RELATED MATTERS
 
     4.1 ASSUMPTION OF OBLIGATIONS BY SURVIVING CORPORATION. At and after the
Effective Time, the Surviving Corporation shall assume or cause to be satisfied
all liabilities and obligations arising under all KeyCorp Benefit Plans and all
other employment agreements, severance agreements, or similar agreements entered
into or maintained by KeyCorp for its employees and that are in existence on the
date of this Supplemental Agreement or entered into after the date of this
Supplemental Agreement in accordance with the terms of either this Supplemental
Agreement or the written consent of the Parties.
 
     4.2 BOARD OF DIRECTORS.
 
     (a) The Board of Directors of the Surviving Corporation at the Effective
Time shall consist of 22 persons named pursuant to Sections 4.2(b) and (c) of
this Supplemental Agreement and shall be divided into three classes, two of
seven directors each and one of eight directors, with the initial terms of
office of the first, second, and third classes expiring at the first, second,
and third annual meetings of the shareholders of the Surviving Corporation,
respectively.
 
     (b) Victor J. Riley, Jr. and Robert W. Gillespie shall be directors of the
Surviving Corporation. Messrs. Riley and Gillespie will consult with each other
as to the determination of the remaining 20 directors of the Surviving
Corporation. After such consultation and prior to the Effective Time, Messrs.
Riley and Gillespie shall each designate ten persons to be members of the Board
of Directors of the Surviving Corporation (subject to the approval of the Boards
of Directors of KeyCorp and Society, respectively), with Mr. Riley designating
four of the seven directors in the first class of directors and three of the
seven directors in the second class of directors, and Mr. Gillespie designating
three of the first class of directors and four of the second class of directors,
and each designating four of the third class of directors (except that the
number of directors to be designated for the class in which Messrs. Riley and
Gillespie are members pursuant to Section 4.2(c) shall be reduced by one
designation each). None of the persons designated by Messrs. Riley and Gillespie
as members of the Board of Directors shall be an Insider Director. Messrs. Riley
and Gillespie shall each be members of the Executive Committee and the
Nominating Committee of the Board of Directors of
 
                                       10
<PAGE>   166
 
the Surviving Corporation. Prior to the Effective Time, Messrs. Riley and
Gillespie shall mutually agree as to the number of members of the Executive
Committee, the Compensation and Organization Committee, the Audit Committee, and
the Community Responsibility Committee, and will consult with each other as to
the formation of any other committees of the Board of Directors and as to the
appointment of members to the Executive Committee, the Compensation and
Organization Committee, the Audit Committee, the Nominating Committee, the
Community Responsibility Committee, and any other committee of the Board of
Directors. After such consultation and prior to the Effective Time, Messrs.
Riley and Gillespie shall each appoint an equal number of members to the
Executive Committee, the Compensation and Organization Committee, the Audit
Committee, the Nominating Committee, the Community Responsibility Committee, and
any other committee of the Board of Directors, subject, prior to the Effective
Time, to the approval of the Boards of Directors of KeyCorp and Society,
respectively, and, after the Effective Time, to the approval of the Board of
Directors of the Surviving Corporation. After the Effective Time, and for as
long as Mr. Riley shall serve as Chairman of the Board of the Surviving
Corporation, Mr. Riley and Mr. Gillespie shall further consult with each other
with respect to any vacancies on the Board of Directors, or on the Executive
Committee, the Compensation and Organization Committee, the Audit Committee, the
Nominating Committee, the Community Responsibility Committee, or any other
committee of the Board of Directors, as to the formation of any other committee
of the Board of Directors, and as to any adjustment to the number of members of
any committee of the Board of Directors other than the Nominating Committee.
 
     (c) It is anticipated that the Effective Time will occur prior to the 1994
Annual Meeting of Shareholders of Society, in which event Messrs. Riley and
Gillespie shall be in the class of directors of the Surviving Corporation whose
term will expire at the 1994 Annual Meeting of Shareholders of the Surviving
Corporation, all the directors of the Surviving Corporation whose term expires
at the 1994 Annual Meeting of Shareholders of the Surviving Corporation shall be
nominated for re-election as directors of the Surviving Corporation for terms
expiring at the 1997 Annual Meeting of Shareholders of the Surviving
Corporation, and the Surviving Corporation shall solicit proxies for, and use
its best efforts to cause, the election of all such persons as directors. In the
event the 1994 Annual Meeting of Shareholders of Society occurs prior to the
Effective Time, the first Annual Meeting of Shareholders of the Surviving
Corporation will occur in 1995 and Messrs. Riley and Gillespie shall be in the
class of directors of the Surviving Corporation whose term will expire at the
1997 Annual Meeting of Shareholders of the Surviving Corporation.
 
     (d) Mr. Riley shall be Chairman of the Board and Chairman of the Executive
Committee of the Board of Directors of the Surviving Corporation through
December 31, 1998 or his earlier failure to continue to be a director of the
Surviving Corporation, whether as a result of his death, resignation, removal as
provided in the Surviving Corporation Regulations, or failure to be re-elected
at the expiration of his term as director. On December 31, 1998, Mr. Riley shall
cease to be Chairman of the Board and Chairman of the Executive Committee,
unless he shall have earlier ceased to hold those positions. Mr. Gillespie shall
become Chairman of the Board and Chairman of the Executive Committee of the
Surviving Corporation on the date (which in no event shall be later than
December 31, 1998) on which Mr. Riley ceases to be Chairman of the Board and
Chairman of the Executive Committee, subject, in all cases, to Mr. Gillespie's
earlier failure to continue to be a director of the Surviving Corporation,
whether as a result of his death, resignation, removal as provided in the
Surviving Corporation Regulations, or failure to be re-elected at the expiration
of his term as director. If Mr. Riley shall at any time prior to December 31,
1998 cease to hold for any reason one or both of his positions as Chairman of
the Board and Chairman of the Executive Committee, Mr. Gillespie shall
immediately assume any such position, provided that he is then a director. Prior
to Mr. Gillespie's becoming Chairman of the Board and Chairman of the Executive
Committee, no individual (other than Mr. Gillespie or any other person
designated by Mr. Gillespie) shall be designated vice chairman or deputy
chairman, or with any position or title of similar import, of either the Board
of Directors or the Executive Committee.
 
     (e) The persons designated by Messrs. Riley and Gillespie, and approved by
the respective Boards of Directors of KeyCorp and Society, as members of the
Board of Directors of the Surviving Corporation shall be listed on, and their
respective terms indicated in, Exhibit III to the Merger Agreement and shall be
named in the Joint Proxy Statement and the Registration Statement, subject to
receipt of the consent of such individuals to serve as directors.
 
     (f) The provisions of this Section 4.2 shall remain in effect through
December 31, 1998.
 
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<PAGE>   167
 
     4.3 MANAGEMENT. The most senior officer of the Surviving Corporation shall
be the President, who also shall be the Chief Executive Officer of the Surviving
Corporation (and may use the term "Chief Executive Officer" as part of his
title) except during periods when there is a separate office of Chief Executive
Officer, in which case the officer holding the separate office of Chief
Executive Officer shall be the most senior officer of the Surviving Corporation
and the President shall be the second most senior officer. At the Effective
Time, Mr. Riley shall be the Chief Executive Officer of the Surviving
Corporation for a term expiring on December 31, 1995, or upon his earlier death,
retirement, resignation, or removal as provided in the Surviving Corporation
Regulations. There shall be a separate office of Chief Executive Officer of the
Surviving Corporation during the period from the Effective Time through December
31, 1995 or any earlier date on which Mr. Riley ceases for any reason (including
death, retirement, resignation, or removal as provided in the Surviving
Corporation Regulations) to be Chief Executive Officer, and as long as Mr. Riley
is the Chief Executive Officer, he shall also hold the office of Chairman of the
Board (which for such period shall be an office of the Corporation), but there
shall be no separate office of Chief Executive Officer after December 31, 1995
or any earlier date on which Mr. Riley ceases for any reason (including death,
retirement, resignation, or removal as provided in the Surviving Corporation
Regulations) to be Chief Executive Officer of the Surviving Corporation and
after such date the title "Chairman of the Board" shall only be a director
position and not an officer position. At the Effective Time, Mr. Gillespie shall
be the President of the Surviving Corporation for a term expiring on December
31, 1998, or upon his earlier death, retirement, resignation, or removal as
provided in the Surviving Corporation Regulations. Accordingly, at such time
(which in no event shall be later than December 31, 1995) as Mr. Riley ceases
for any reason to hold the separate office of Chief Executive Officer, Mr.
Gillespie shall, by virtue of being President, also be the Chief Executive
Officer through the expiration of his term on December 31, 1998, or until his
earlier death, retirement, resignation, or removal as provided in the Surviving
Corporation Regulations. In addition, at the Effective Time, Mr. Gillespie shall
be the Chief Operating Officer of the Surviving Corporation for a term expiring
on the date on which Mr. Riley ceases to be the Chief Executive Officer (which
in no event shall be later than December 31, 1995). On December 31, 1995, Mr.
Riley shall retire from all positions he then holds as an officer of the
Surviving Corporation and as an officer or employee of any or all of its
subsidiaries and shall no longer be an officer of the Surviving Corporation or
an officer, employee, or director of any of its subsidiaries. During the terms
of their respective Employment Agreements, Mr. Riley and Mr. Gillespie shall
have the respective powers, and perform the respective duties, set forth in each
of their respective Employment Agreements (and applicable exhibits, if any,
thereto), dated October 1, 1993, with Society Corporation. Any modification,
amendment, or failure to honor the terms of either of such Employment Agreements
at any time during their respective terms shall require the affirmative vote of
three-quarters of the entire authorized Board of Directors of the Surviving
Corporation. The elections of Mr. Riley and Mr. Gillespie to, and the retirement
of Mr. Riley from, the various offices and positions specified in this Section
4.3 from time to time, as applicable, shall be automatically self-executing
without any further action required by the Board of Directors of the Surviving
Corporation or otherwise. The provisions of this Section 4.3 shall remain in
effect through December 31, 1998. Simultaneously with the execution and delivery
of this Supplemental Agreement, Society has executed and delivered the
Employment Agreements between it and Messrs. Riley and Gillespie, respectively,
and each of Messrs. Riley and Gillespie has executed and delivered his
respective Employment Agreement.
 
     4.4 HEADQUARTERS OF THE SURVIVING CORPORATION. At the Effective Time, the
headquarters and principal executive offices of the Surviving Corporation shall
be located in Cleveland, Ohio.
 
     4.5 INDEMNIFICATION. Except as may be limited by applicable law, the
Surviving Corporation hereby agrees to maintain all rights of indemnification
currently provided by KeyCorp and Society in favor of their respective current
and former employees, directors, and officers and, if applicable, in favor of
the employees, directors, and officers of their respective Subsidiaries, on
terms no less favorable than those provided in the charter or regulations of
each such Party or otherwise in effect on the date of this Supplemental
Agreement for a period of not less than six years from the Effective Time with
respect to matters occurring prior to the Effective Time. In the event the
Surviving Corporation or any of its successors or assigns (i) reorganizes or
consolidates with or merges into or enters into another business combination
transaction with any other person or entity and is not the resulting,
continuing, or surviving corporation or entity of such reorganization,
consolidation, merger, or transaction, or (ii) liquidates, dissolves, or
transfers all or substantially all of its properties and assets to any person or
entity, then, and in each such case, proper
 
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<PAGE>   168
 
provision will be made so that such surviving corporation or transferee and its
successors and assigns assume the obligations set forth in this Section 4.5.
 
     4.6 DIRECTOR AND OFFICER LIABILITY INSURANCE. (a) For a period of six years
after the Effective Time, the Surviving Corporation shall use its best efforts
to cause to be maintained in effect the current policies of directors and
officers' liability insurance maintained by KeyCorp (provided that the Surviving
Corporation may substitute therefor policies of at least the same coverage and
amounts containing terms and conditions which are substantially no less
advantageous) with respect to claims arising from facts or events which occurred
prior to the Effective Time; provided, however, that in no event shall the
Surviving Corporation be obligated to expend, in order to maintain or provide
insurance coverage pursuant to this Section 4.6(a), any amount per annum in
excess of 200% of the amount of the annual premiums paid as of the date hereof
by KeyCorp for such insurance (the "KeyCorp Maximum Amount"). If the amount of
the annual premiums necessary to maintain or procure such insurance coverage
exceeds the KeyCorp Maximum Amount, the Surviving Corporation shall use all
reasonable efforts to maintain the most advantageous policies of directors' and
officers' liability insurance obtainable for an annual premium equal to the
KeyCorp Maximum Amount.
 
     (b) For a period of six years after the Effective Time, the Surviving
Corporation shall use its best efforts to cause to be maintained in effect the
current policies of directors' and officers' liability insurance maintained by
Society (provided that the Surviving Corporation may substitute therefor
policies of at least the same coverage and amounts containing terms and
conditions which are substantially no less advantageous) with respect to claims
arising from facts or events which occurred prior to the Effective Time;
provided, however, that in no event shall the Surviving Corporation be obligated
to expend, in order to maintain or provide insurance coverage pursuant to this
Section 4.6(b), any amount per annum in excess of 200% of the amount of the
annual premiums paid as of the date hereof by Society for such insurance (the
"Society Maximum Amount"). If the amount of the annual premiums necessary to
maintain or procure such insurance coverage exceeds the Society Maximum Amount,
the Surviving Corporation shall use all reasonable efforts to maintain the most
advantageous policies of directors' and officers' liability insurance obtainable
for an annual premium equal to the Society Maximum Amount.
 
                                  ARTICLE FIVE
 
                   REPRESENTATIONS AND WARRANTIES OF KEYCORP
 
     KeyCorp hereby represents and warrants to Society as follows:
 
     5.1 ORGANIZATION, STANDING, AND AUTHORITY. KeyCorp is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
New York, and is duly qualified to do business and in good standing in the
States of the United States and foreign jurisdictions where its ownership or
leasing of property or the conduct of its business requires it to be so
qualified and in which the failure to be duly qualified would, either
individually or in the aggregate, have a material adverse effect on the
financial condition, results of operations, or prospects of the KeyCorp
Companies on a consolidated basis or its ability to consummate the transaction
contemplated by this Supplemental Agreement, the KeyCorp Stock Option Agreement,
and the Merger Agreement on the terms herein and therein provided (a "KeyCorp
Material Adverse Effect"). KeyCorp has corporate power and authority to carry on
its business as now conducted, to own, lease, and operate its assets,
properties, and business, and to execute and deliver, and to perform its
obligations under, this Supplemental Agreement and the Merger Agreement. KeyCorp
is duly registered as a bank holding company under the BHC Act. KeyCorp has in
effect all federal, state, local, and foreign governmental authorizations
necessary for it to own or lease its properties and assets and to carry on its
business as it is now conducted, the absence of which would, either individually
or in the aggregate, have a KeyCorp Material Adverse Effect.
 
     5.2 CAPITAL STOCK.
 
     (a) As of the date hereof, the authorized capital stock of KeyCorp consists
of (i) 350,000,000 shares of KeyCorp Common Stock, of which no more than
101,655,826 shares are issued and outstanding, and (ii) 10,000,000 shares of
Preferred Stock of the par value of $5.00 per share, of which 1,280,000 shares
of
 
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<PAGE>   169
 
KeyCorp Series B Preferred Stock, and no other shares of serial preferred stock
are issued and outstanding. All of the issued and outstanding shares of KeyCorp
Capital Stock are duly and validly authorized and issued and are fully paid and
non-assessable. None of the outstanding shares of KeyCorp Capital Stock has been
issued in violation of any preemptive rights of the current or past shareholders
of KeyCorp. As of September 29, 1993, KeyCorp had reserved 4,501,276 shares of
KeyCorp Common Stock for issuance under the KeyCorp Stock Option Plans pursuant
to which options covering not more than 3,427,980 shares of KeyCorp Common Stock
were outstanding as of September 29, 1993.
 
     (b) Except as Previously Disclosed or set forth in Section 5.2(a) of this
Supplemental Agreement and except as provided under the (i) KeyCorp Stock Option
Agreement and (ii) the KeyCorp Rights Plan, there are no shares of capital stock
or other equity securities of KeyCorp outstanding and no outstanding options,
warrants, scrip, rights to subscribe to, calls, or commitments of any character
whatsoever relating to, or securities or rights convertible into or exchangeable
for, shares of the capital stock of KeyCorp or contracts, commitments,
understandings, or arrangements by which KeyCorp is or may be bound to issue
additional shares of its capital stock or options, warrants, or rights to
purchase or acquire any additional shares of its capital stock.
 
     5.3 KEYCORP SUBSIDIARIES. Exhibit 22 to KeyCorp's Annual Report on Form
10-K for the fiscal year ended December 31, 1992, as supplemented or updated by
information Previously Disclosed, lists all of the KeyCorp Subsidiaries as of
the date of this Supplemental Agreement. Each of the Subsidiaries that is a bank
is an "insured depository institution" as defined in the Federal Deposit
Insurance Act and applicable regulations thereunder. No equity securities of any
of the KeyCorp Subsidiaries are or may become required to be issued (other than
to KeyCorp) by reason of any options, warrants, scrip, rights to subscribe to,
calls, or commitments of any character whatsoever relating to, or securities or
rights convertible into or exchangeable for, shares of the capital stock of any
KeyCorp Subsidiary, and there are no contracts, commitments, understandings, or
arrangements by which any KeyCorp Subsidiary is bound to issue (other than to
KeyCorp) additional shares of its capital stock or options, warrants, or rights
to purchase or acquire any additional shares of its capital stock. There are no
contracts, commitments, understandings, or arrangements by which any of the
KeyCorp Companies is or may be bound to sell or otherwise transfer any shares of
the capital stock of any KeyCorp Subsidiary, except for a transfer to any of the
KeyCorp Companies, and there are no contracts, commitments, understandings, or
arrangements relating to the rights of KeyCorp to vote or to dispose of such
shares. Except as provided in 12 U.S.C. Section 55 in the case of KeyCorp
Subsidiaries that are national banks or comparable state laws pertaining to
state banks organized under the laws of such states, all of the shares of
capital stock of each KeyCorp Subsidiary held by KeyCorp or a KeyCorp Subsidiary
are fully paid and non-assessable and are owned by KeyCorp or a KeyCorp
Subsidiary free and clear of any claim, lien, or encumbrance. Except as
Previously Disclosed, each KeyCorp Subsidiary is either a national banking
association, a state bank, a state savings bank, or a corporation, and is duly
organized and, to the extent applicable, validly existing, and in good standing
under the laws of the jurisdiction in which it is incorporated or organized, and
is duly qualified to do business and in good standing in the jurisdictions where
its ownership or leasing of property or the conduct of its business requires it
to be so qualified and in which the failure to be duly qualified could, either
individually or in the aggregate, have a KeyCorp Material Adverse Effect. Each
KeyCorp Subsidiary has the corporate power and authority necessary for it to own
or lease its properties and assets and to carry on its business as it is now
being conducted, and has all federal, state, local, and foreign governmental
authorizations necessary for it to own or lease its properties and assets and to
carry on its business as it is now being conducted, the absence of which
governmental authorizations would, either individually or in the aggregate, have
a material adverse effect on the financial condition, results of operations, or
prospects of the KeyCorp Companies on a consolidated basis.
 
     5.4 AUTHORITY.
 
     (a) The execution and delivery of this Supplemental Agreement, the Merger
Agreement, and the KeyCorp Stock Option Agreement and the consummation of the
transactions contemplated herein or therein, including the Merger, have been
duly and validly authorized by all necessary corporate action on the part of
KeyCorp, subject, with respect to this Supplemental Agreement and the Merger
Agreement, to the approval of the shareholders of KeyCorp to the extent required
by applicable law. This Supplemental Agreement and the Merger Agreement, subject
to any requisite shareholder approval hereof and thereof, and the KeyCorp
 
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<PAGE>   170
 
Stock Option Agreement represent valid and legally binding obligations of
KeyCorp, enforceable against KeyCorp in accordance with their respective terms.
 
     (b) Neither the execution and delivery of this Supplemental Agreement, the
Merger Agreement, or the KeyCorp Stock Option Agreement by KeyCorp, nor the
consummation by KeyCorp of the transactions contemplated herein or therein, nor
compliance by any KeyCorp Company with any of the provisions hereof or thereof,
will (i) conflict with or result in a breach of any provision of any KeyCorp
Company's certificate of incorporation or by-laws, or (ii) except as Previously
Disclosed, constitute or result in the breach of any term, condition, or
provision of, or constitute a default under, or give rise to any right of
termination, cancellation, or acceleration with respect to, or result in the
creation of any lien, charge, or encumbrance upon, any property or assets of any
of the KeyCorp Companies pursuant to, any note, bond, mortgage, indenture,
license, agreement, lease, or other instrument or obligation to which any of
them is a party or by which any of them or any of their properties or assets may
be subject, and that would, either individually or in the aggregate, have a
KeyCorp Material Adverse Effect, or (iii) subject to receipt of the requisite
approvals, authorizations, filings, registrations, and notifications referred to
in Section 9.5 of this Supplemental Agreement, violate any order, writ,
injunction, decree, statute, rule, or regulation applicable to any of the
KeyCorp Companies or any of their properties or assets.
 
     (c) Other than in connection or compliance with the provisions of
applicable state corporate and securities laws, the Securities Laws, and the
rules and regulations thereunder, and the rules of the NYSE, and other than
consents, authorizations, approvals, or exemptions required from the Federal
Reserve, the OTS (if applicable), and the State Regulatory Commissioners or by
virtue of KeyCorp's interests in small business investment corporations, no
notice to, filing with, authorization of, exemption by, or consent or approval
of any public body or authority is necessary for the consummation by KeyCorp of
the Merger and the other transactions contemplated by this Supplemental
Agreement, the Merger Agreement, and the KeyCorp Stock Option Agreement.
 
     (d) The Board of Directors of KeyCorp (at a meeting duly called and held)
has by requisite vote (i) determined that the Merger is in the best long-term
and short-term interests of KeyCorp and its shareholders, employees, customers,
and creditors, and the communities in which it does business, among others (ii)
authorized and approved this Supplemental Agreement, the Merger Agreement, the
KeyCorp Stock Option Agreement, and the transactions contemplated hereby and
thereby, including the Merger, (iii) directed that the Merger be submitted for
consideration to KeyCorp's shareholders at the KeyCorp Shareholders' Meeting,
and (iv) approved execution of the KeyCorp Stock Option Agreement and authorized
and approved the Merger in accordance with Section 912 of the New York Business
Corporation Law with the result that Section 912 will not apply to the execution
and delivery by KeyCorp of the KeyCorp Stock Option Agreement or the issuance of
shares of KeyCorp Common Stock to Society pursuant to the KeyCorp Stock Option
Agreement, the consummation of the Merger, the acquisition of the Surviving
Corporation Common Stock by the holders of KeyCorp Common Stock, or any other
transaction to be carried out pursuant to this Supplemental Agreement, the
Merger Agreement, or the KeyCorp Option Agreement.
 
     5.5 FINANCIAL STATEMENTS. KeyCorp has delivered to Society, prior to the
execution of this Supplemental Agreement, KeyCorp Financial Statements in
respect of periods ending on or prior to June 30, 1993, and will promptly
deliver when available copies of the KeyCorp Financial Statements in respect of
periods ending after June 30, 1993. The KeyCorp Financial Statements (as of the
dates thereof and for the periods covered thereby): (i) are (and, in the case of
KeyCorp Financial Statements in respect of periods ending after June 30, 1993,
will be) in accordance with the books and records of the KeyCorp Companies, and
have been and will continue to be maintained in accordance with GAAP and good
business practices, and (ii) present (and, in the case of KeyCorp Financial
Statements in respect of periods ending after June 30, 1993, will present)
fairly the consolidated financial position and the consolidated results of
operations, changes in shareholders' equity, and cash flows of the KeyCorp
Companies as of the dates and for the periods indicated, in accordance with GAAP
applicable to banks or bank holding companies applied on a basis consistent with
prior periods (subject in the case of interim financial statements to normal
recurring year-end adjustments normal in nature and amount). To the best
knowledge of KeyCorp's management, with respect to each acquisition completed by
KeyCorp since December 31, 1989, and accounted for on a pooling of interests
basis,
 
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<PAGE>   171
 
there is no reasonable basis upon which such accounting treatment for any such
acquisition would be denied or reversed.
 
     5.6 ABSENCE OF UNDISCLOSED LIABILITIES. Except as Previously Disclosed,
none of the KeyCorp Companies has any obligation or liability (contingent or
otherwise) that is material, either individually or in the aggregate, to the
financial condition, results of operations, or prospects of the KeyCorp
Companies on a consolidated basis, or that when combined with all similar
obligations or liabilities would, either individually or in the aggregate, be
material to the financial condition, results of operations, or prospects of the
KeyCorp Companies on a consolidated basis, except (i) as reflected in the
KeyCorp Financial Statements prior to the date of this Supplemental Agreement or
by this Supplemental Agreement and (ii) for commitments and obligations made, or
liabilities incurred, in the ordinary course of its business consistent with
past practices. Since December 31, 1992, none of the KeyCorp Companies has
incurred or paid any obligation or liability (including any obligation or
liability incurred in connection with any acquisitions in which any form of
direct financial assistance of the federal government or any agency thereof has
been provided to any KeyCorp Company) which would, either individually or in the
aggregate, be material to the financial condition, results of operations, or
prospects of the KeyCorp Companies on a consolidated basis, except as Previously
Disclosed or for obligations paid or incurred by it in connection with
transactions in the ordinary course of its business consistent with past
practices.
 
     5.7 TAX MATTERS.
 
     (a) All federal, state, local, and foreign tax returns required to be filed
by or on behalf of any of KeyCorp and all other corporations, banks, savings
banks, associations, and other entities of which KeyCorp owns or controls 50% or
more of the outstanding equity securities have been timely filed or requests for
extensions have been timely filed, granted, and have not expired. All taxes
shown on filed returns have been paid. There is no audit examination,
deficiency, refund litigation, or matter in controversy with respect to any
taxes that might result in a determination that could, either individually or in
the aggregate, have a KeyCorp Material Adverse Effect, except as reserved
against in the KeyCorp Financial Statements or as Previously Disclosed. All
taxes, interest, additions, and penalties which are material in amount and which
are due with respect to completed and settled examinations or concluded
litigation have been paid or adequately reserved for.
 
     (b) Except as Previously Disclosed, none of the KeyCorp Companies has
executed an extension or waiver of any statute of limitations on the assessment
or collection of any tax due that is currently in effect.
 
     (c) Adequate provision for any federal, state, local, or foreign taxes due
or to become due for any of the KeyCorp Companies for any period or periods
through and including June 30, 1993, has been made and is reflected in the June
30, 1993 financial statements included in the KeyCorp Financial Statements.
 
     (d) Deferred taxes of the KeyCorp Companies have been provided for in
accordance with GAAP.
 
     5.8 ALLOWANCE FOR POSSIBLE LOAN LOSSES. The allowance for possible loan
losses shown on the consolidated balance sheets of KeyCorp included in the
KeyCorp Financial Statements at December 31, 1992 and June 30, 1993 were
adequate to provide for possible losses, net of recoveries relating to loans
previously charged off, on loans outstanding (including accrued interest
receivable) as of the dates thereof.
 
     5.9 PROPERTIES. Except as disclosed or reserved against in the KeyCorp
Financial Statements, the KeyCorp Companies have good and marketable title, free
and clear of all liens, encumbrances, charges, defaults, or equities of any
character, to all of the material properties and assets, tangible or intangible,
reflected in the KeyCorp Financial Statements as being owned by the KeyCorp
Companies as of the dates thereof other than those that would not, individually
or in the aggregate, have a KeyCorp Material Adverse Effect. To the knowledge of
KeyCorp's management, all buildings and all fixtures, equipment, and other
property and assets which are material to its business on a consolidated basis
and are held under leases or subleases by any of the KeyCorp Companies are held
under valid leases or subleases enforceable in accordance with their respective
terms (except as enforceability may be limited by applicable bankruptcy,
insolvency, reorganization, moratorium, or other laws affecting the enforcement
of creditors' rights generally and except that the availability of the equitable
remedy of specific performance or injunctive relief is subject to the discretion
of the court before which any proceedings may be brought, other than any such
exceptions to validity or enforceability that would not, individually or in the
aggregate, have a KeyCorp Material Adverse
 
                                       16
<PAGE>   172
 
Effect). The policies of fire, theft, liability, fidelity, and other insurance
maintained with respect to the assets or businesses of the KeyCorp Companies
provide adequate coverage against loss.
 
     5.10 COMPLIANCE WITH LAWS. Except as Previously Disclosed, each of the
KeyCorp Companies:
 
     (a) Is in compliance with all laws, regulations, reporting and licensing
requirements, and orders applicable to its business or to the employees
conducting its business, the breach or violation of which would, either
individually or in the aggregate, have a KeyCorp Material Adverse Effect; and
 
     (b) Has received no notification or communication from any agency or
department of federal, state, or local government (including the Federal
Reserve, the OTS, and other bank, insurance, and securities regulatory
authorities) or the staff thereof (i) asserting that any of the KeyCorp
Companies is not in compliance with any of the statutes, regulations, or
ordinances which such governmental authority enforces, which, as a result of
such noncompliance in any such instance, could, either individually or in the
aggregate, have a KeyCorp Material Adverse Effect, (ii) threatening to revoke
any license, franchise, permit, or governmental authorization which is material,
either individually or in the aggregate, to the financial condition, results of
operations, or prospects of the KeyCorp Companies on a consolidated basis or the
ability of KeyCorp to consummate the transactions contemplated under this
Supplemental Agreement, the Merger Agreement, or the KeyCorp Stock Option
Agreement, under the terms hereof and thereof, or (iii) requiring any of the
KeyCorp Companies (or any of their officers, directors, or controlling persons)
to enter into a cease and desist order, agreement, or memorandum of
understanding (or requiring the board of directors thereof to adopt any
resolution or policy).
 
     5.11 EMPLOYEE BENEFIT PLANS.
 
     (a) KeyCorp has delivered or made available to Society, prior to the
execution of this Supplemental Agreement, copies of (i) each pension,
retirement, stock option, stock purchase, savings, employee stock ownership,
restricted stock, phantom stock, stock ownership or other similar plan as in
effect on the date of this Supplemental Agreement, including, without
limitation, any "employee benefit plan", as that term is defined in Section 3(3)
of ERISA, in respect of any of the present or former directors, officers,
employees, or independent contractors of, or dependents, spouses, or other
beneficiaries of any of such directors, officers, employees, or independent
contractors of, any of the KeyCorp Companies, (ii) each employment or consulting
agreement, severance (including, without limitation, change of control or golden
parachute agreements or arrangements), bonus, profit-sharing, incentive,
deferred compensation, supplemental or excess retirement, life insurance,
health, or other plan, policy, contract, or arrangement as in effect on the date
of this Supplemental Agreement which provides any benefit or perquisites to or
in respect of any of the present or former directors or officers, or dependents,
spouses, or other beneficiaries of any of such directors or officers of, any of
the KeyCorp Companies, and (iii) each material severance, bonus, profit-sharing,
incentive, deferred compensation, supplemental or excess retirement, life
insurance, health, or other plan, policy, contract, or arrangement as in effect
on the date of this Supplemental Agreement which provides benefits or
perquisites to or in respect of present or former employees or independent
contractors of, or dependents, spouses, or other beneficiaries of, any of such
employees or independent contractors of, any of the KeyCorp Companies (all the
foregoing being collectively the "KeyCorp Benefit Plans"). Any of the KeyCorp
Benefit Plans which is an "employee pension benefit plan," as that term is
defined in Section 3(2) of ERISA, is referred to herein as an "ERISA Plan." No
KeyCorp Company has participated in or been a member of, and no KeyCorp Benefit
Plan is or has been, a multiemployer plan within the meaning of Section 3(37) of
ERISA.
 
     (b) All KeyCorp Benefit Plans comply in all material respects with the
applicable provisions of ERISA and the Internal Revenue Code, and any other
applicable laws, rules, and regulations the breach or violation of which could
result in a liability, either individually or in the aggregate, material to the
financial condition, results of operations, or prospects of the KeyCorp
Companies on a consolidated basis. With respect to the KeyCorp Benefit Plans, no
event has occurred and, to the best knowledge of KeyCorp's management, there
exists no condition or set of circumstances, in connection with which any of the
KeyCorp Companies could be subject to any liability that is reasonably likely to
have, either individually or in the aggregate, a KeyCorp Material Adverse Effect
(except liability for benefit claims and funding obligations payable in the
ordinary course). No notice of a "reportable event," as that term is defined in
Section 4043 of ERISA, for which the 30-day reporting requirement has not been
waived has been required to be filed for any KeyCorp ERISA Plan
 
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<PAGE>   173
 
which is subject to Title IV of ERISA within the 12-month period ending on the
date of this Agreement. None of the KeyCorp Companies has provided, or is
required to provide, security to any KeyCorp ERISA Plan which is subject to
Title IV of ERISA pursuant to Section 401(a)(29) of the Code.
 
     (c) No KeyCorp ERISA Plan which is subject to Title IV of ERISA has any
"unfunded current liability," as that term is defined in Section 302(d)(8)(A) of
ERISA, and the present fair market value of the assets of each such plan exceeds
the plan's "benefit liabilities," as that term is defined in Section 4001(a)(16)
of ERISA, when determined under actuarial factors that would apply if the plan
terminated as of the date of this Supplemental Agreement in accordance with all
applicable legal requirements.
 
     5.12 MATERIAL CONTRACTS. Except as Previously Disclosed, none of the
KeyCorp Companies, nor any of their respective assets, businesses, or
operations, as of the date of this Supplemental Agreement, is a party to, or is
bound or affected by, or receives benefits under, any contract or agreement or
amendment thereto that in each case would be required to be filed as an exhibit
to a Form 10-K filed by KeyCorp as of the date of this Supplemental Agreement
that has not been filed as an exhibit to KeyCorp's Form 10-K filed for the
fiscal year ended December 31, 1992.
 
     5.13 MATERIAL CONTRACT DEFAULTS. None of the KeyCorp Companies is in
default under any contract, agreement, commitment, arrangement, lease, insurance
policy, or other instrument to which it is a party, by which its respective
assets, business, or operations may be bound or affected, or under which it or
its respective assets, business, or operations receives benefits, and which
default is reasonably likely to have, either individually or in the aggregate, a
KeyCorp Material Adverse Effect, and there has not occurred any event that, with
the lapse of time or the giving of notice or both, would constitute such a
default.
 
     5.14 LEGAL PROCEEDINGS. Except as Previously Disclosed, there are no
actions, suits, or proceedings instituted or pending or, to the best knowledge
of KeyCorp's management, threatened (or unasserted but considered probable of
assertion and which if asserted would have at least a more than remote
possibility of an unfavorable outcome) against any of the KeyCorp Companies, or
affecting any property, asset, interest, or right of any of them, that are
reasonably expected to have, either individually or in the aggregate, a KeyCorp
Material Adverse Effect.
 
     5.15 ABSENCE OF CERTAIN CHANGES OR EVENTS. Since December 31, 1992, the
KeyCorp Companies on a consolidated basis have not suffered, either individually
or in the aggregate, any material adverse change in their business, operations,
assets, condition (financial or otherwise), prospects, or results of operations,
or failed to operate their business consistent with their past practices.
 
     5.16 REPORTS. Since January 1, 1988, or the date of acquisition by KeyCorp
if later, each of the KeyCorp Companies has filed all reports and statements,
together with any amendments required to be made with respect thereto, that it
was required to file with (i) the SEC, including, but not limited to Forms 10-K,
Forms 10-Q, Forms 8-K, and proxy statements, (ii) the Federal Reserve, (iii) the
OTS, (iv) the Office of the Comptroller of the Currency, (v) the Federal Deposit
Insurance Corporation, (vi) any applicable state banking, insurance, securities,
or other regulatory authorities (except, in the case of state securities
authorities, filings which are not material), and (vii) the NYSE. As of their
respective dates (and without giving effect to any amendments or modifications
filed after the date of this Supplemental Agreement with respect to reports and
documents filed before the date of this Supplemental Agreement), each of such
reports and documents, including the financial statements, exhibits, and
schedules thereto, complied in all material respects with all of the statutes,
rules, and regulations enforced or promulgated by the authority with which they
were filed and did not contain any untrue statement of a material fact or omit
to state any material fact necessary in order to make the statements made
therein in light of the circumstances under which they were made not misleading.
 
     5.17 STATEMENTS TRUE AND CORRECT. None of the information supplied or to be
supplied by KeyCorp for inclusion in the Registration Statement to be filed by
Society with the SEC in connection with the Surviving Corporation Capital Stock
to be issued in the Merger, the Joint Proxy Statement to be mailed to each
Party's shareholders in connection with the Shareholders' Meetings, and any
other documents to be filed with the SEC or any other Regulatory Authority in
connection with the transactions contemplated hereby, will, at the respective
times such documents are filed, and, in the case of the Registration Statement,
when it becomes effective and, with respect to the Joint Proxy Statement, when
first mailed to the shareholders of KeyCorp and Society, be false or misleading
with respect to any material fact, or omit to state any material fact necessary
in order to make the statements therein not misleading, or, in the case of the
Joint Proxy
 
                                       18
<PAGE>   174
 
Statement or any amendment thereof or supplement thereto, at the time of the
Shareholders' Meetings, be false or misleading with respect to any material
fact, or omit to state any material fact necessary to make the statements
therein in light of the circumstances under which they were made not misleading.
All documents that KeyCorp is responsible for filing with the SEC or any other
Regulatory Authority in connection with the transactions contemplated hereby, by
the Merger Agreement, or by the KeyCorp Stock Option Agreement will comply in
all material respects with the provisions of applicable law including applicable
provisions of the Securities Laws.
 
     5.18 ENVIRONMENTAL MATTERS. (a) To the best knowledge of KeyCorp's
management, KeyCorp and each KeyCorp Subsidiary (for purposes of this Section
5.18, the term "KeyCorp Subsidiary" shall include small business investment
corporations and entities that invest in unaffiliated companies in the ordinary
course of business in which KeyCorp owns or controls 5% or more of the
outstanding equity securities either directly or through an unbroken chain of
entities as to each of which 5% or more of the outstanding equity securities is
owned directly or indirectly by KeyCorp), the Participation Facilities, and the
Loan Properties (each as defined below) are, and have been, in compliance with
all applicable laws, rules, regulations, and standards, and all requirements of
the United States Environmental Protection Agency ("EPA") and of state and local
agencies with jurisdiction over pollution or protection of health or the
environment, except for violations which, individually or in the aggregate, do
not or would not result in a KeyCorp Material Adverse Effect.
 
     (b) To the best knowledge of KeyCorp's management, there is no suit, claim,
action, or proceeding, pending or threatened, before any court, governmental
agency, board, or other forum pursuant to which KeyCorp or any of the KeyCorp
Subsidiaries or any Loan Property, Participation Facility, or Trust Property (or
in respect of such Loan Property, Participation Facility, or Trust Property) has
been or, with respect to threatened proceedings, may be named as a defendant (i)
for alleged noncompliance (including by any predecessor) with any environmental
law, rule, or regulation or (ii) relating to the release into the environment of
any Hazardous Material (as defined below) or oil, whether or not occurring at or
on any site owned (including as trustee), leased, or operated by it or any of
its subsidiaries or any Loan Property, Participation Facility, or Trust
Property, except where such noncompliance or release does not or would not,
individually or in the aggregate, result in a KeyCorp Material Adverse Effect.
 
     (c) To the best knowledge of KeyCorp's management, there is no reasonable
basis for any suit, claim, action, or proceeding of a type described in Section
5.18, except as would not, individually or in the aggregate, have a KeyCorp
Material Adverse Effect.
 
     (d) During the period of (i) KeyCorp or any of the KeyCorp Subsidiaries'
ownership (including as trustee) or operation of any of their respective current
properties, (ii) KeyCorp or any of the KeyCorp Subsidiaries' participation in
the management of any Participation Facility, (iii) KeyCorp or any of the
KeyCorp Subsidiaries' holding of a security interest in a Loan Property, or (iv)
KeyCorp or any of the KeyCorp Subsidiaries acting as a trustee or fiduciary with
respect to a Trust Property, to the best knowledge of KeyCorp's management,
there has been no release of Hazardous Material or oil in, on, under, or
affecting such property, Participation Facility, Loan Property or Trust
Property, except where such release does not or would not result, individually
or in the aggregate, in a KeyCorp Material Adverse Effect. Prior to the period
of (w) KeyCorp or any of the KeyCorp Subsidiaries' ownership (including as
trustee) or operation of any of their respective current properties, (x) KeyCorp
or any of the KeyCorp Subsidiaries' participation in the management of any
Participation Facility, (y) KeyCorp or any of the KeyCorp Subsidiaries acting as
trustee or other fiduciary with respect to Trust Property, or (z) KeyCorp or any
of the KeyCorp Subsidiaries' holding of a security interest in a Loan Property,
to the best knowledge of KeyCorp's management, there was no release of Hazardous
Material or oil in, on, under, or affecting any such property, Participation
Facility, or Loan Property, except where such release does not or would not
result, individually or in the aggregate, in a KeyCorp Material Adverse Effect.
 
     (e) The following definitions apply for purposes of this Section 5.18: (i)
"Loan Property" means any property in which KeyCorp (or a KeyCorp Subsidiary)
holds a security interest for an amount greater than $2,500,000, and, where
required by the context, includes the owner or operator of such property, but
only with respect to such property; (ii) "Participation Facility" means any
property in which KeyCorp (or a KeyCorp Subsidiary) participates in the
management of such property and, where required by the context, includes the
 
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<PAGE>   175
 
owner or operator of such property, but only with respect to such property;
(iii) "Trust Property" means any property with respect to which KeyCorp (or a
KeyCorp Subsidiary) acts or has acted as a trustee or other fiduciary, directly
or indirectly, and includes any trust or similar legal vehicle that owns or
controls (or that owned or controlled) such property and, where required by the
context, includes the trustee or other fiduciary, but only with respect to such
property; and (iv) "Hazardous Material" means any pollutant, contaminant, or
hazardous substance within the meaning of the Comprehensive Environmental
Response, Compensation, and Liability Act, 42 U.S.C. Section 9601 et seq., or
any similar federal, state, or local law.
 
     5.19 KNOWLEDGE AS TO CONDITIONS. KeyCorp knows of no reason why the
approvals, authorizations, filings, registrations, and notices contemplated by
Section 9.5 should not be obtained without the imposition of any material and
adverse condition or restriction or why the accountants' letters referred to in
Section 9.7 or the Tax Opinions referred to in Section 8.3 cannot be obtained.
 
     5.20 ANTITAKEOVER PROVISIONS INAPPLICABLE. No "business combination",
"moratorium", "control share", or other state antitakeover statute or regulation
(x) prohibits or restricts KeyCorp's ability to perform its obligations under
this Supplemental Agreement, the Merger Agreement, and the KeyCorp Stock Option
Agreement, or its ability to consummate the transactions contemplated hereby and
thereby, (y) would have the effect of invalidating or voiding this Supplemental
Agreement, the Merger Agreement, or the KeyCorp Stock Option Agreement, or any
provision hereof or thereof, or (z) would subject Society to any material
impediment or condition in connection with the exercise of any of its rights
under this Supplemental Agreement, the Merger Agreement, or the KeyCorp Stock
Option Agreement.
 
     5.21 LABOR MATTERS. Neither KeyCorp nor any of the KeyCorp Companies is a
party to, or is bound by, any collective bargaining agreement, contract, or
other agreement or understanding with a labor union or labor organization, nor
is KeyCorp or any of the KeyCorp Companies the subject of any proceeding
asserting that KeyCorp or any KeyCorp Company has committed an unfair labor
practice or seeking to compel KeyCorp or any KeyCorp Company to bargain with any
labor union or labor organization as to wages and conditions of employment, nor
is there any strike or other labor dispute involving KeyCorp or any of the
KeyCorp Companies pending or threatened.
 
                                  ARTICLE SIX
 
                   REPRESENTATIONS AND WARRANTIES OF SOCIETY
 
     Society hereby represents and warrants to KeyCorp as follows:
 
     6.1 ORGANIZATION, STANDING, AND AUTHORITY. Society is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Ohio, and is duly qualified to do business and in good standing in the States of
the United States and foreign jurisdictions where its ownership or leasing of
property or the conduct of its business requires it to be so qualified and in
which the failure to be duly qualified would, either individually or in the
aggregate, have a material adverse effect on the financial condition, results of
operations, or prospects of the Society Companies on a consolidated basis or its
ability to consummate the transaction contemplated by this Supplemental
Agreement, the Society Stock Option Agreement, and the Merger Agreement on the
terms herein and therein provided (a "Society Material Adverse Effect"). Society
has corporate power and authority to carry on its business as now conducted, to
own, lease, and operate its assets, properties, and business, and to execute and
deliver, and to perform its obligations under, this Supplemental Agreement and
the Merger Agreement. Society is duly registered as a bank holding company under
the BHC Act and as a savings and loan holding company under the Home Owners Loan
Act. Society has in effect all federal, state, local, and foreign governmental
authorizations necessary for it to own or lease its properties and assets and to
carry on its business as it is now conducted, the absence of which would, either
individually or in the aggregate, have a Society Material Adverse Effect.
 
     6.2 CAPITAL STOCK.
 
     (a) As of the date hereof, the authorized capital stock of Society consists
of (i) 400,000,000 shares of Society Common Stock, of which no more than
117,084,868 shares are issued and outstanding, and (ii)
 
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<PAGE>   176
 
25,000,000 shares of serial preferred stock, without par value, of which none
are issued and outstanding. All of the issued and outstanding shares of Society
Common Stock are, and all of the shares of the Surviving Corporation Capital
Stock to be issued in the Merger will, at the Effective Time, have been duly and
validly authorized and issued, and are or will be, as the case may be, fully
paid and non-assessable. None of the outstanding shares of Society Common Stock
has been issued in violation of any preemptive rights of the current or past
shareholders of Society and none of the outstanding shares of Society Capital
Stock is or will be entitled to any preemptive rights in respect of the Merger
or any of the other transactions contemplated by this Supplemental Agreement. As
of September 28, 1993, Society had reserved 7,221,064 shares of Society Common
Stock for issuance under the Society Stock Option Plans, pursuant to which
options covering 6,005,464 shares of Society Common Stock were outstanding as of
September 28, 1993.
 
     (b) Except as Previously Disclosed or set forth in Section 6.2(a) of this
Supplemental Agreement and except as provided under (i) the Society Stock Option
Agreement and (ii) the Society Rights Plan, there are no shares of capital stock
or other equity securities of Society outstanding and no outstanding options,
warrants, scrip, rights to subscribe to, calls, or commitments of any character
whatsoever relating to, or securities or rights convertible into or exchangeable
for, shares of the capital stock of Society, or contracts, commitments,
understandings, or arrangements by which Society is or may be bound to issue
additional shares of its capital stock or options, warrants, or rights to
purchase or acquire any additional shares of its capital stock. Society has
cancelled and terminated all the "Limited Stock Appreciation Rights" previously
granted by Society under the Society Stock Option Plans.
 
     6.3 SOCIETY SUBSIDIARIES. Exhibit 22 to Society's Annual Report on Form
10-K for the fiscal year ended December 31, 1992, as supplemented or updated by
information Previously Disclosed, lists all of the active Society Subsidiaries
as of the date of this Supplemental Agreement. Each of the Subsidiaries that is
a bank or a savings bank is an "insured depository institution" as defined in
the Federal Deposit Insurance Act and applicable regulations thereunder. No
equity securities of any of the Society Subsidiaries are or may become required
to be issued (other than to Society) by reason of any options, warrants, scrip,
rights to subscribe to, calls, or commitments of any character whatsoever
relating to, or securities or rights convertible into or exchangeable for,
shares of the capital stock of any Society Subsidiary, and there are no
contracts, commitments, understandings, or arrangements by which any Society
Subsidiary is bound to issue (other than to Society) additional shares of its
capital stock or options, warrants, or rights to purchase or acquire any
additional shares of its capital stock. There are no contracts, commitments,
understandings, or arrangements by which any of the Society Companies is or may
be bound to sell or otherwise transfer any shares of the capital stock of any
Society Subsidiary, except for a transfer to any of the Society Companies, and
there are no contracts, commitments, understandings, or arrangements relating to
the right of Society to vote or to dispose of such shares. Except as provided in
12 U.S.C. Section 55 in the case of Society Subsidiaries that are national banks
or comparable state laws pertaining to state banks organized under the laws of
such states, all of the shares of capital stock of each Society Subsidiary held
by Society or a Society Subsidiary are fully paid and non-assessable and are
owned by Society or any Society Subsidiary free and clear of any claim, lien, or
encumbrance. Except as Previously Disclosed, each Society Subsidiary is either a
national banking association, a federal savings bank, a state bank, a state
savings bank, or a corporation, and is duly organized and, to the extent
applicable, validly existing, and in good standing under the laws of the
jurisdiction in which it is incorporated or organized, and is duly qualified to
do business and in good standing in the jurisdictions where its ownership or
leasing of property or the conduct of its business requires it to be so
qualified and in which the failure to be duly qualified could, either
individually or in the aggregate, have a Society Material Adverse Effect. Each
Society Subsidiary has the corporate power and authority necessary for it to own
or lease its properties and assets and to carry on its business as it is now
being conducted, and has all federal, state, local, and foreign governmental
authorizations necessary for it to own or lease its properties and assets and to
carry on its business as it is now being conducted, the absence of which
governmental authorizations would, either individually or in the aggregate, have
a material adverse effect on the financial condition, results of operations, or
prospects of the Society Companies on a consolidated basis.
 
     6.4 AUTHORITY.
 
     (a) The execution and delivery of this Supplemental Agreement, the Merger
Agreement, and the Society Stock Option Agreement and the consummation of the
transactions contemplated herein or therein,
 
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<PAGE>   177
 
including the Merger, have been duly and validly authorized by all necessary
corporate action on the part of Society, subject, with respect to this
Supplemental Agreement and the Merger Agreement, to the approval of the
shareholders of Society to the extent required by applicable law. This
Supplemental Agreement and the Merger Agreement, subject to any requisite
shareholder approval hereof and thereof, and the Society Stock Option Agreement
represent valid and legally binding obligations of Society, enforceable against
Society in accordance with their respective terms.
 
     (b) Neither the execution and delivery of this Supplemental Agreement, the
Merger Agreement, or the Society Stock Option Agreement by Society, nor the
consummation by Society of the transactions contemplated herein or therein, nor
compliance by any Society Company with any of the provisions hereof or thereof,
will (i) conflict with or result in a breach of any provision of any Society
Company's articles of incorporation or by-laws or regulations or (ii) except as
Previously Disclosed, constitute or result in the breach of any term, condition,
or provision of, or constitute a default under, or give rise to any right of
termination, cancellation, or acceleration with respect to, or result in the
creation of any lien, charge, or encumbrance upon, any property or assets of any
of the Society Companies pursuant to, any note, bond, mortgage, indenture,
license, agreement, lease, or other instrument or obligation to which any of
them is a party or by which any of them or any of their properties or assets may
be subject, and that would, either individually or in the aggregate, have a
Society Material Adverse Effect, or (iii) subject to receipt of the requisite
approvals, authorizations, filings, registrations, and notifications referred to
in Section 9.5 of this Supplemental Agreement, violate any order, writ,
injunction, decree, statute, rule, or regulation applicable to any of the
Society Companies or any of their properties or assets.
 
     (c) Other than in connection or compliance with the provisions of
applicable state corporate and securities laws, the Securities Laws, and the
rules and regulations thereunder, and the rules of the NYSE, and other than
consents, authorizations, approvals, or exemptions required from the Federal
Reserve, the OTS (if applicable), and the State Regulatory Commissioners or by
virtue of Society's interests in small business investment corporations, no
notice to, filing with, authorization of, exemption by, or consent or approval
of any public body or authority is necessary for the consummation by Society of
the Merger and the other transactions contemplated by this Supplemental
Agreement, the Merger Agreement, and the Society Stock Option Agreement.
 
     (d) The Board of Directors of Society (at a meeting duly called and held)
has by requisite vote determined that the Merger is in the best long-term and
short-term interests of Society and its shareholders, employees, customers, and
creditors, and the communities in which it does business, among others (ii)
authorized and approved this Supplemental Agreement, the Merger Agreement, the
Society Stock Option Agreement, and the transactions contemplated hereby and
thereby, including the Merger, (iii) directed that the Merger be submitted for
consideration to Society's shareholders at the Society Shareholders' Meeting,
and (iv) approved execution of the Society Stock Option Agreement and authorized
and approved the Merger in accordance with Chapter 1704 of the Ohio Revised Code
with the result that Chapter 1704 will not apply to the execution and delivery
by Society of the Society Stock Option Agreement or the issuance or transfer of
shares of Society Common Stock to KeyCorp pursuant to the KeyCorp Stock Option
Agreement, the consummation of the Merger, or any other transaction to be
carried out pursuant to the Agreement, the Merger Agreement, or the Society
Option Agreement.
 
     6.5 FINANCIAL STATEMENTS. Society has delivered to KeyCorp prior to the
execution of this Supplemental Agreement Society Financial Statements in respect
of periods ending on or prior to June 30, 1993, and will promptly deliver when
available copies of the Society Financial Statements in respect of periods
ending after June 30, 1993. The Society Financial Statements (as of the dates
thereof and for the periods covered thereby): (i) are (and, in the case of the
Society Financial Statements in respect of periods ending after June 30, 1993,
will be) in accordance with the books and records of the Society Companies, and
have been and will continue to be maintained in accordance with GAAP and good
business practices, and (ii) present (and, in the case of Society Financial
Statements in respect of periods ending after June 30, 1993, will present)
fairly the consolidated financial position and the consolidated results of
operations, changes in shareholders' equity, and cash flows of the Society
Companies as of the dates and for the periods indicated, in
 
                                       22
<PAGE>   178
 
accordance with GAAP applicable to banks or savings banks, as the case may be,
or bank holding companies applied on a basis consistent with prior periods
(subject in the case of interim financial statements to normal recurring
year-end adjustments normal in nature and amount). To the best knowledge of
Society's management, with respect to each acquisition transaction completed by
Society since December 31, 1989 and accounted for on a pooling of interests
basis, there is no reasonable basis upon which such accounting treatment for any
such acquisition would be denied or reversed.
 
     6.6 ABSENCE OF UNDISCLOSED LIABILITIES. Except as Previously Disclosed,
none of the Society Companies has any obligation or liability (contingent or
otherwise) that is material, either individually or in the aggregate, to the
financial condition, results of operations, or prospects of the Society
Companies on a consolidated basis, or that when combined with all similar
obligations or liabilities would, either individually or in the aggregate, be
material to the financial condition, results of operations, or prospects of the
Society Companies on a consolidated basis except (i) as reflected in the Society
Financial Statements prior to the date of this Supplemental Agreement or by this
Supplemental Agreement and (ii) for commitments and obligations made, or
liabilities incurred, in the ordinary course of its business consistent with
past practices. Since December 31, 1992, none of the Society Companies has
incurred or paid any obligation or liability (including any obligation or
liability incurred in connection with any acquisitions in which any form of
direct financial assistance of the federal government or any agency thereof has
been provided to any Society Company) which would, either individually or in the
aggregate, be material to the financial condition, results of operations, or
prospects of the Society Companies on a consolidated basis, except as Previously
Disclosed or for obligations paid or incurred by it in connection with
transactions in the ordinary course of its business consistent with past
practices.
 
     6.7 TAX MATTERS.
 
     (a) All federal, state, local, and foreign tax returns required to be filed
by or on behalf of any of Society and all other corporations, banks, savings
banks, associations, and other entities of which Society owns or controls 50% or
more of the outstanding equity securities have been timely filed or requests for
extensions have been timely filed, granted, and have not expired. All taxes
shown on filed returns have been paid. There is no audit examination,
deficiency, refund litigation, or matter in controversy with respect to any
taxes that might result in a determination that could, either individually or in
the aggregate, have a Society Material Adverse Effect, except as reserved
against in the Society Financial Statements or as Previously Disclosed. All
taxes, interest, additions, and penalties which are material in amount and which
are due with respect to completed and settled examinations or concluded
litigation have been paid or reserved for.
 
     (b) Except as Previously Disclosed, none of the Society Companies has
executed an extension or waiver of any statute of limitations on the assessment
or collection of any tax due that is currently in effect.
 
     (c) Adequate provision for any federal, state, local, or foreign taxes due
or to become due for any of the Society Companies for any period or periods
through and including June 30, 1993, has been made and is reflected in the June
30, 1993 financial statements included in the Society Financial Statements.
 
     (d) Deferred taxes of the Society Companies have been provided for in
accordance with GAAP.
 
     6.8 ALLOWANCE FOR POSSIBLE LOAN LOSSES. The allowance for possible loan
losses shown on the consolidated balance sheets of Society included in the
Society Financial Statements at December 31, 1992 and June 30, 1993 were
adequate to provide for possible losses, net of recoveries relating to loans
previously charged off, on loans outstanding (including accrued interest
receivable) as of the dates thereof.
 
     6.9 PROPERTIES. Except as disclosed or reserved against in the Society
Financial Statements, the Society Companies have good and marketable title, free
and clear of all liens, encumbrances, charges, defaults, or equities of any
character, to all of the material properties and assets, tangible or intangible,
reflected in the Society Financial Statements as being owned by the Society
Companies as of the dates thereof other than those that would not, individually
or in the aggregate, have a Society Material Adverse Effect. To the knowledge of
Society's management, all buildings and all fixtures, equipment, and other
property and assets which are material to its business on a consolidated basis
and are held under leases or subleases by any of the Society Companies are held
under valid leases or subleases enforceable in accordance with their respective
terms (except as enforceability may be limited by applicable bankruptcy,
insolvency, reorganiza-
 
                                       23
<PAGE>   179
 
tion, moratorium, or other laws affecting the enforcement of creditors' rights
generally and except that the availability of the equitable remedy of specific
performance or injunctive relief is subject to the discretion of the court
before which any proceedings may be brought, other than any such exceptions to
validity or enforceability that would not, individually or in the aggregate,
have a Society Material Adverse Effect). The policies of fire, theft, liability,
fidelity, and other insurance maintained with respect to the assets or
businesses of the Society Companies provide adequate coverage against loss.
 
     6.10 COMPLIANCE WITH LAWS. Except as Previously Disclosed, each of the
Society Companies:
 
     (a) Is in compliance with all laws, regulations, reporting and licensing
requirements, and orders applicable to its business or to the employees
conducting its business, the breach or violation of which would, either
individually or in the aggregate, have a Society Material Adverse Effect; and
 
     (b) Has received no notification or communication from any agency or
department of federal, state, or local government (including the Federal
Reserve, the OTS, and other bank, insurance, and securities regulatory
authorities) or the staff thereof (i) asserting that any of the Society
Companies is not in compliance with any of the statutes, regulations, or
ordinances which such governmental authority enforces, which, as a result of
such noncompliance in any such instance, could, either individually or in the
aggregate, have a Society Material Adverse Effect, (ii) threatening to revoke
any license, franchise, permit, or governmental authorization which is material,
either individually or in the aggregate, to the financial condition, results of
operations, or prospects of the Society Companies on a consolidated basis or the
ability of Society to consummate the transactions contemplated under this
Supplemental Agreement, the Merger Agreement, or the Society Stock Option
Agreement under the terms hereof and thereof, or (iii) requiring any of the
Society Companies (or any of their officers, directors, or controlling persons)
to enter into a cease and desist order, agreement, or memorandum of
understanding (or requiring the board of directors thereof to adopt any
resolution or policy).
 
     6.11 EMPLOYEE BENEFIT PLANS.
 
     (a) Society has delivered or made available to KeyCorp, prior to the
execution of this Supplemental Agreement, copies of (i) each pension,
retirement, stock option, stock purchase, savings, employee stock ownership,
restricted stock, phantom stock, stock ownership or other similar plan as in
effect on the date of this Supplemental Agreement, including, without
limitation, any "employee benefit plan", as that term is defined in Section 3(3)
of ERISA, in respect of any of the present or former directors, officers,
employees, or independent contractors of, or dependents, spouses, or other
beneficiaries of any of such directors, officers, employees, or independent
contractors of, any of the Society Companies, (ii) each employment or consulting
agreement, severance (including, without limitation, change of control or golden
parachute agreements or arrangements), bonus, profit-sharing, incentive,
deferred compensation, supplemental or excess retirement, life insurance,
health, or other plan, policy, contract, or arrangement as in effect on the date
of this Supplemental Agreement which provides any benefit or perquisites to or
in respect of any of the present or former directors or officers, or dependents,
spouses, or other beneficiaries of, any of such directors or officers of, any of
the Society Companies, and (iii) each material severance, bonus, profit-sharing,
incentive, deferred compensation, supplemental or excess retirement, life
insurance, health, or other plan, policy, contract, or arrangement as in effect
on the date of this Supplemental Agreement which provides benefits or
perquisites to or in respect of present or former employees or independent
contractors of, or dependents, spouses, or other beneficiaries of, any of such
employees or independent contractors of, any of the Society Companies (all the
foregoing being collectively the "Society Benefit Plans"). Any of the Society
Benefit Plans which is an "employee pension benefit plan," as that term is
defined in Section 3(2) of ERISA, is referred to herein as an "ERISA Plan." No
Society Company has participated in or been a member of, and no Society Benefit
Plan is or has been, a multiemployer plan within the meaning of Section 3(37) of
ERISA.
 
     (b) All Society Benefit Plans comply in all material respects with the
applicable provisions of ERISA and the Internal Revenue Code, and any other
applicable laws, rules, and regulations the breach or violation of which could
result in a liability, either individually or in the aggregate, material to the
financial condition, results of operations, or prospects of the Society
Companies on a consolidated basis. With respect to the Society Benefit Plans, no
event has occurred and, to the best knowledge of Society's management, there
exists no condition or set of circumstances in connection with which any of the
Society Companies could be subject
 
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<PAGE>   180
 
to any liability that is reasonably likely to have, either individually or in
the aggregate, a Society Material Adverse Effect (except liability for benefit
claims and funding obligations payable in the ordinary course). No notice of a
"reportable event," as that term is defined in Section 4043 of ERISA, for which
the 30-day reporting requirement has not been waived has been required to be
filed for any Society ERISA Plan which is subject to Title IV of ERISA within
the 12-month period ending on the date of this Agreement. None of the Society
Companies has provided, or is required to provide, security to any Society ERISA
Plan which is subject to Title IV of ERISA pursuant to Section 401(a)(29) of the
Code.
 
     (c) No Society ERISA Plan which is subject to Title IV of ERISA has any
"unfunded current liability," as that term is defined in Section 302(d)(8)(A) of
ERISA, and the present fair market value of the assets of each such plan exceeds
the plan's "benefit liabilities," as that term is defined in Section 4001(a)(16)
of ERISA, when determined under actuarial factors that would apply if the plan
terminated as of the date of this Supplemental Agreement in accordance with all
applicable legal requirements.
 
     6.12 MATERIAL CONTRACTS. Except as Previously Disclosed, none of the
Society Companies, nor any of their respective assets, businesses, or
operations, as of the date of this Supplemental Agreement, is a party to, or is
bound or affected by, or receives benefits under, any contract or agreement or
amendment thereto that in each case would be required to be filed as an exhibit
to a Form 10-K filed by Society as of the date of this Supplemental Agreement
that has not been filed as an exhibit to Society's Form 10-K filed for the
fiscal year ended December 31, 1992.
 
     6.13 MATERIAL CONTRACT DEFAULTS. None of the Society Companies is in
default under any contract, agreement, commitment, arrangement, lease, insurance
policy, or other instrument to which it is a party, or by which its respective
assets, business, or operations may be bound or affected, or under which it or
its respective assets, business, or operations receives benefits, and which
default is reasonably likely to have, either individually or in the aggregate, a
Society Material Adverse Effect, and there has not occurred any event that, with
the lapse of time or the giving of notice or both, would constitute such a
default.
 
     6.14 LEGAL PROCEEDINGS. Except as Previously Disclosed, there are no
actions, suits, or proceedings instituted or pending or, to the best knowledge
of Society's management, threatened (or unasserted but considered probable of
assertion and which if asserted would have at least a more than remote
possibility of an unfavorable outcome) against any of the Society Companies, or
affecting any property, asset, interest, or right of any of them, that are
reasonably expected to have, either individually or in the aggregate, a Society
Material Adverse Effect.
 
     6.15 ABSENCE OF CERTAIN CHANGES OR EVENTS. Since December 31, 1992, the
Society Companies on a consolidated basis have not suffered, either individually
or in the aggregate, any material adverse change in their business, operations,
assets, condition (financial or otherwise), prospects, or results of operations,
or failed to operate their business consistent with their past practices.
 
     6.16 REPORTS. Since January 1, 1988, or the date of acquisition by Society
if later, each of the Society Companies has filed all reports and statements,
together with any amendments required to be made with respect thereto, that it
was required to file with (i) the SEC, including, but not limited to Forms 10-K,
Forms 10-Q, Forms 8-K, and proxy statements, (ii) the Federal Reserve, (iii) the
OTS, (iv) the Office of the Comptroller of the Currency, (v) the Federal Deposit
Insurance Corporation, (vi) any applicable state banking, insurance, securities,
or other regulatory authorities (except, in the case of state securities
authorities, filings which are not material), and (vii) the NYSE. As of their
respective dates (and without giving effect to any amendments or modifications
filed after the date of this Supplemental Agreement with respect to reports and
documents filed before the date of this Supplemental Agreement), each of such
reports and documents, including the financial statements, exhibits, and
schedules thereto, complied in all material respects with all of the statutes,
rules, and regulations enforced or promulgated by the authority with which they
were filed and did not contain any untrue statement of a material fact or omit
to state any material fact necessary in order to make the statements made
therein in light of the circumstances under which they were made not misleading.
 
     6.17 STATEMENTS TRUE AND CORRECT. None of the information supplied or to be
supplied by Society for inclusion in the Registration Statement to be filed by
Society with the SEC in connection with the Surviving Corporation Capital Stock
to be issued in the Merger, the Joint Proxy Statement to be mailed to
 
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<PAGE>   181
 
each Party's shareholders in connection with the Shareholders' Meetings, and any
other documents to be filed with the SEC or any other Regulatory Authority in
connection with the transactions contemplated hereby, will, at the respective
time such documents are filed, and, in the case of the Registration Statement,
when it becomes effective and, with respect to the Joint Proxy Statement, when
first mailed to the shareholders of KeyCorp and Society, be false or misleading
with respect to any material fact, or omit to state any material fact necessary
in order to make the statements therein not misleading, or, in the case of the
Joint Proxy Statement or any amendment thereof or supplement thereto, at the
time of the Shareholders' Meetings, be false or misleading with respect to any
material fact, or omit to state any material fact necessary to make the
statements therein in light of the circumstances under which they were made not
misleading. All documents that Society is responsible for filing with the SEC or
any other Regulatory Authority in connection with the transactions contemplated
hereby, by the Merger Agreement, or by the Society Stock Option Agreement will
comply in all material respects with the provisions of applicable law including
applicable provisions of the Securities Laws.
 
     6.18 ENVIRONMENTAL MATTERS. (a) To the best knowledge of Society's
management, Society and each Society Subsidiary (for purposes of this Section
6.18, the term "Society Subsidiary" shall include small business investment
corporations and entities that invest in unaffiliated companies in the ordinary
course of business in which Society owns or controls 5% or more of the
outstanding equity securities either directly or through an unbroken chain of
entities as to each of which 5% or more of the outstanding equity securities is
owned directly or indirectly by Society), the Participation Facilities, and the
Loan Properties (each as defined below) are, and have been, in compliance with
all applicable laws, rules, regulations, and standards, and all requirements of
the EPA and of state and local agencies with jurisdiction over pollution or
protection of health or the environment, except for violations which,
individually or in the aggregate, do not or would not result in a Society
Material Adverse Effect.
 
     (b) To the best knowledge of Society's management, there is no suit, claim,
action, or proceeding, pending or threatened, before any court, governmental
agency, board, or other forum pursuant to which Society or any of the Society
Subsidiaries or any Loan Property, Participation Facility, or Trust Property (or
in respect of such Loan Property, Participation Facility, or Trust Property) has
been or, with respect to threatened proceedings, may be named as a defendant (i)
for alleged noncompliance (including by any predecessor) with any environmental
law, rule, or regulation or (ii) relating to the release into the environment of
any Hazardous Material (as defined below) or oil, whether or not occurring at or
on any site owned (including as trustee), leased, or operated by it or any of
its Subsidiaries or any Loan Property, Participation Facility, or Trust
Property, except where such noncompliance or release does not or would not,
individually or in the aggregate, result in a Society Material Adverse Effect.
 
     (c) To the best knowledge of Society's management, there is no reasonable
basis for any suit, claim, action, or proceeding of a type described in Section
5.18, except as would not, individually or in the aggregate, have a Society
Material Adverse Effect.
 
     (d) During the period of (i) Society or any of the Society Subsidiaries'
ownership (including as trustee) or operation of any of their respective current
properties, (ii) Society or any of the Society Subsidiaries' participation in
the management of any Participation Facility, (iii) Society or any of the
Society Subsidiaries' holding of a security interest in a Loan Property or Trust
Property, or (iv) Society or any of the Society Subsidiaries acting as a trustee
or fiduciary with respect to a Trust Property, to the best knowledge of
Society's management, there has been no release of Hazardous Material or oil in,
on, under, or affecting such property, Participation Facility, Loan Property or
Trust Property, except where such release does not or would not result,
individually or in the aggregate, in a Society Material Adverse Effect. Prior to
the period of (w) Society or any of the Society Subsidiaries' ownership
(including as trustee) or operation of any of their respective current
properties, (x) Society or any of the Society Subsidiaries' participation in the
management of any Participation Facility, (y) Society or any of the Society
Subsidiaries acting as trustee or other fiduciary with respect to Trust
Property, or (z) Society or any of the Society Subsidiaries' holding of a
security interest in a Loan Property, to the best knowledge of Society's
management, there was no release of Hazardous Material or oil in, on, under, or
affecting any such property, Participation Facility, or Loan Property, except
where such release does not or would not result, individually or in the
aggregate, in a Society Material Adverse Effect.
 
                                       26
<PAGE>   182
 
     (e) The following definitions apply for purposes of this Section 6.18: (i)
"Loan Property" means any property in which Society (or a Society Subsidiary)
holds a security interest for an amount greater than $2,500,000, and, where
required by the context, includes the owner or operator of such property, but
only with respect to such property; (ii) "Participation Facility" means any
property in which Society (or a Society Subsidiary) participates in the
management of such property and, where required by the context, includes the
owner or operator of such property, but only with respect to such property;
(iii) "Trust Property" means any property with respect to which Society (or a
Society Subsidiary) acts or has acted as a trustee or other fiduciary, directly
or indirectly, and includes any trust or similar legal vehicle that owns or
controls (or that owned or controlled) such property and, where required by the
context, includes the trustee or other fiduciary, but only with respect to such
property; and (iv) "Hazardous Material" means any pollutant, contaminant, or
hazardous substance within the meaning of the Comprehensive Environmental
Response, Compensation, and Liability Act, 42 U.S.C. Section 9601 et seq., or
any similar federal, state, or local law.
 
     6.19 KNOWLEDGE AS TO CONDITIONS. Society knows of no reason why the
approvals, authorizations, filings, registrations, and notices contemplated by
Section 9.5 should not be obtained without the imposition of any material and
adverse condition or restriction or why the accountants' letters referred to in
Section 9.7 or the Tax Opinions referred to in Section 8.3 cannot be obtained.
 
     6.20 ANTITAKEOVER PROVISIONS INAPPLICABLE. No "business combination",
"moratorium", "control share", or other state antitakeover statute or regulation
(x) prohibits or restricts Society's ability to perform its obligations under
this Supplemental Agreement, the Merger Agreement, and the Society Stock Option
Agreement, or its ability to consummate the transactions contemplated hereby and
thereby, (y) would have the effect of invalidating or voiding this Supplemental
Agreement, the Merger Agreement, or the Society Stock Option Agreement, or any
provision hereof or thereof, or (z) would subject KeyCorp to any material
impediment or condition in connection with the exercise of any of its rights
under this Supplemental Agreement, the Merger Agreement, or the Society Stock
Option Agreement.
 
     6.21 LABOR MATTERS. Neither Society nor any of the Society Companies is a
party to, or is bound by, any collective bargaining agreement, contract, or
other agreement or understanding with a labor union or labor organization, nor
is Society or any of the Society Companies the subject of any proceeding
asserting that Society or any Society Company has committed an unfair labor
practice or seeking to compel Society or any Society Company to bargain with any
labor union or labor organization as to wages and conditions of employment, nor
is there any strike or other labor dispute involving Society or any of the
Society Companies pending or threatened.
 
                                 ARTICLE SEVEN
 
                            COVENANTS AND AGREEMENTS
 
     Each Party hereby covenants and agrees with the other Party as follows:
 
     7.1 CONDUCT OF BUSINESS -- NEGATIVE COVENANTS. From the date of this
Supplemental Agreement until the earlier of the Effective Time or until the
termination of this Supplemental Agreement, each Party will not do, or agree or
commit to do, and will cause each of its Subsidiaries not to do or agree or
commit to do, any of the following without the prior written consent of the
chief executive officer or chief financial officer of the other Party, which
consent shall not be unreasonably withheld:
 
     (a) Except as Previously Disclosed or as expressly contemplated by this
Supplemental Agreement, amend its charter, by-laws or regulations, or the
KeyCorp Rights Plan or the Society Rights Plan, respectively, or
 
     (b) Impose, or suffer the imposition, on any share of stock held by it or
by one of its Subsidiaries of any material lien, charge, or encumbrance, or
permit any such lien, charge, or encumbrance to exist, or
 
     (c) Except as expressly permitted in this Supplemental Agreement or as to
(i) KeyCorp, in connection with (1) the use of KeyCorp Common Stock by optionees
to pay an option exercise price or to satisfy tax liabilities under the various
KeyCorp Stock Option Plans and (2) the repurchase of KeyCorp Common Stock in
accordance with the KeyCorp Stock Option Agreement, and (ii) Society, in
connection with (1) the use of
 
                                       27
<PAGE>   183
 
the Society Common Stock by optionees to pay an option exercise price or to
satisfy tax liabilities under the various Society Stock Option Plans and (2) the
repurchase of the Society Common Stock in accordance with the Society Stock
Option Agreement, repurchase, redeem, or otherwise acquire or exchange, directly
or indirectly, any shares of its capital stock or any securities convertible
into any shares of its capital stock, or
 
     (d) Except as expressly contemplated by this Supplemental Agreement or as
Previously Disclosed, acquire direct or indirect control over any corporation,
association, firm, or organization, other than in connection with (i) mergers,
acquisitions, or other transactions approved in advance in writing by the other
Party, any such approval by the other Party to constitute its agreement to
cooperate reasonably with the first Party on disclosure and other matters
arising in connection with the issuance of any securities as consideration, or
other aspects of, any such transactions, (ii) mergers, acquisitions, or other
transactions involving cash consideration (and not debt or equity securities
issued by such Party) after consulting with (but with no requirement to obtain
the approval of) the other Party; provided, however, the aggregate amount of
total assets acquired or total deposits assumed in all such transactions shall
not exceed $1,000,000,000, and the total cash consideration paid shall not
exceed $50,000,000 in the aggregate, (iii) internal reorganizations or
consolidations involving existing Subsidiaries, (iv) good faith foreclosures in
the ordinary course of business, (v) acquisitions of control by a banking
Subsidiary in a bona fide fiduciary capacity, (vi) investments made by small
business investment corporations or by Subsidiaries that invest in unaffiliated
companies in the ordinary course of business, or (vii) the creation of new
Subsidiaries organized to conduct or continue activities otherwise permitted by
this Supplemental Agreement, or
 
     (e) Except as Previously Disclosed, sell or otherwise dispose of, or permit
any of the KeyCorp Subsidiaries or the Society Subsidiaries, as the case may be,
to sell or otherwise dispose of: (i) any shares of capital stock of such Party
or any Subsidiary of such Party (unless any such shares of stock are sold or
otherwise transferred to such Party or any of its Subsidiaries), (ii) any
substantial part of the assets or earning power of such Party or any Subsidiary
of such Party, or (iii) any asset other than in the ordinary course of business
for reasonable and adequate consideration; provided, however, such covenant in
this subparagraph (e) shall not prohibit the sale of shares or assets sold after
the date of this Supplemental Agreement in transactions not otherwise prohibited
by this Supplemental Agreement involving an aggregate consideration (including
the assumption of any liabilities) not in excess of $50,000,000, or
 
     (f) Except as Previously Disclosed and other than issuing commercial paper
exempt from registration under the 1933 Act, incur, or permit any of the KeyCorp
Subsidiaries or Society Subsidiaries, as the case may be, to incur, any
additional debt obligation or other obligation for borrowed money (other than
(i) in replacement of existing short-term debt with other short-term debt, (ii)
financing of banking related subsidiary activities consistent with past
practices, (iii) indebtedness of any KeyCorp Company to another KeyCorp Company
or of any Society Company to another Society Company (iv) indebtedness of any
KeyCorp Company or Society Company to any of its respective affiliates, (v)
indebtedness of KeyCorp arising out of the issuance of Senior or Subordinated
Medium Term Notes pursuant to its Registration Statement on Form S-3
(Registration Statement No. 33-49292) filed by KeyCorp with the SEC, or (vi)
indebtedness of Society arising out of the issuance of Medium Term Notes
pursuant to its Registration Statement on Form S-3 (Registration Statement No.
33-51652) filed by Society with the SEC) in excess of an aggregate of
$50,000,000 (for such Party and its Subsidiaries on a consolidated basis),
except in the ordinary course of the business of such Party and its Subsidiaries
consistent with past practices (and such ordinary course of business shall
include, but shall not be limited to, the creation of deposit liabilities,
purchases of federal funds, sales of certificates of deposit, and entry into
repurchase agreements), or
 
     (g) Except as contemplated by this Supplemental Agreement, the Merger
Agreement, or any of the agreements, documents, or instruments contemplated
hereby or thereby, grant any general increase in compensation or benefits to its
employees or to its officers, except in accordance with past practice or as
required by law; pay any bonus except in accordance with past practice or the
provisions of any applicable program or plan adopted by the Board of Directors
of such Party prior to the date of this Supplemental Agreement and which has
been Previously Disclosed (including without limitation as Previously Disclosed
by the disclosure letters dated October 1, 1993); enter into any severance
agreements with any of its directors or officers or the directors or officers of
any Subsidiary except as Previously Disclosed; grant any increase in fees or
other increases in compensation or other benefits to any of its present or
former directors; or effect any
 
                                       28
<PAGE>   184
 
change in retirement benefits for any class of its employees or officers (unless
such change is required by applicable law or, in the opinion of counsel, is
necessary or advisable to maintain the tax qualification of any plan under which
the retirement benefits are provided) that would materially increase the
retirement benefit liabilities of such Party and its Subsidiaries on a
consolidated basis, or
 
     (h) Except as contemplated by this Supplemental Agreement, the Merger
Agreement, or any of the agreements, documents, or instruments contemplated
hereby or thereby, and except as Previously Disclosed, amend any existing
employment contract between such Party or any Subsidiary thereof and any person
having a salary thereunder in excess of $100,000 per year (unless such amendment
is required by law) to increase the compensation or benefits payable thereunder
or extend the term thereof or enter into any new employment contract with any
person having a salary thereunder in excess of $100,000 that such Party or its
applicable Subsidiary does not have the unconditional right to terminate without
liability (other than liability for services already rendered), at any time on
or after the Effective Time, or
 
     (i) Adopt any new employee benefit plan of such Party or any Subsidiary
thereof or make any material change in or to any existing employee benefit plan
of such Party or any Subsidiary thereof other than (i) as Previously Disclosed
to the other Party or (ii) any such change that is required by law or that, in
the opinion of counsel, is necessary or advisable to maintain the tax qualified
status of any such plan.
 
     7.2 CONDUCT OF BUSINESS -- AFFIRMATIVE COVENANTS. Unless the prior written
consent of KeyCorp or Society, as applicable, shall have been obtained by the
other Party, and except as otherwise contemplated or permitted hereby or
Previously Disclosed, each Party shall and shall cause its Subsidiaries: to
operate its business only in the ordinary course of business of such Party and
its Subsidiaries consistent with past practices, to preserve intact its business
organizations and assets and maintain its rights and franchises, and to take no
action which would (i) adversely affect the ability of any of them to obtain any
necessary approvals of governmental authorities required for the transactions
contemplated hereby without imposition of a condition or restriction of the type
referred to in the second sentence of Section 9.5 of this Supplemental Agreement
or (ii) adversely affect the ability of such Party to perform its obligations
under this Supplemental Agreement, the Merger Agreement, the KeyCorp Stock
Option Agreement, or the Society Stock Option Agreement.
 
     7.3 ADVERSE CHANGES IN CONDITION. KeyCorp and Society shall give written
notice promptly to the other Party concerning (i) any material adverse change in
the condition (financial or otherwise), results of operations, or prospects of
such Party and of its Subsidiaries, on a consolidated basis, from the date of
this Supplemental Agreement until the Effective Time or (ii) the occurrence or
impending occurrence of any event or circumstance known to such Party which
would cause or constitute a material breach of any of the representations,
warranties, or covenants of such Party contained herein or that would reasonably
be expected to materially and adversely affect the timely consummation of the
transactions contemplated hereby under the Merger Agreement or under either the
KeyCorp Stock Option Agreement or the Society Stock Option Agreement. Each Party
shall use its best efforts to prevent or to promptly remedy the same.
 
     7.4 INVESTIGATION AND CONFIDENTIALITY. Prior to the Effective Time, KeyCorp
and Society each will keep the other Party promptly advised of all material
developments relevant to its business and to the consummation of the Merger and
may make or cause to be made such investigation, if any, of the business,
properties, operations, and financial and legal condition of the other Party and
its Subsidiaries as KeyCorp or Society reasonably deems necessary or advisable
to familiarize itself and its advisors with such business, properties,
operations, and condition, provided that such investigation shall be reasonably
related to the transactions contemplated hereby and shall not interfere
unnecessarily with normal operations. KeyCorp and Society each agrees to furnish
the other Party and the other Party's advisors with such financial and operating
data and other information with respect to its business, properties, and
employees as KeyCorp and Society shall from time to time reasonably request. No
investigation by one Party shall affect the representations and warranties of
the other Party and, subject to Section 10.3 of this Supplemental Agreement,
each such representation and warranty shall survive any such investigation. Each
Party shall maintain the confidentiality of all confidential information
furnished to it by the other Party in accordance with the terms of the
confidentiality letters dated September 24, 1993, between the Parties (the
"Confidentiality Letters").
 
                                       29
<PAGE>   185
 
     7.5 REPORTS. KeyCorp and Society shall file all reports required to be
filed with the SEC and the Federal Reserve by KeyCorp or Society between the
date of this Supplemental Agreement and the Effective Time and shall deliver to
the other Party copies of all such reports promptly after the same are filed.
Each Subsidiary of KeyCorp or Society that is a depository institution shall
also file all reports required to be filed with the Federal Deposit Insurance
Corporation, the Office of the Comptroller of the Currency, the Federal Reserve,
the OTS, and any applicable State Regulatory Commissioner. Any financial
statements contained in any other reports to another Regulatory Authority shall
be presented in accordance with all laws, rules, regulations, or standards
applicable to such reports.
 
     7.6 DIVIDENDS.
 
     (a) From the date of this Supplemental Agreement to the earlier of the
Effective Time or the termination of this Supplemental Agreement, KeyCorp and
Society may (to the extent legally and contractually permitted to do so), but
shall not be obligated to, declare and pay regular quarterly cash dividends (i)
on the shares of KeyCorp Common Stock or Society Common Stock, as the case may
be, at a rate not in excess of the regular quarterly cash dividend most recently
declared by such Party prior to the date of this Supplemental Agreement and (ii)
on the KeyCorp Series B Preferred Stock as required by the express terms of the
KeyCorp Series B Preferred Stock as in effect on the date hereof. Unless the
Parties otherwise agree in writing, or except as required to comply with
paragraph (c) below or as otherwise contemplated by Section 2.1 of this
Supplemental Agreement in connection with the KeyCorp Rights Plan, neither
KeyCorp nor Society will declare or pay any dividend other than those dividends
expressly permitted by the immediately preceding sentence.
 
     (b) From the date of this Supplemental Agreement to the earlier of the
Effective Time or the termination of this Supplemental Agreement, neither
KeyCorp nor Society shall, without the prior written consent of the other Party,
make any changes in its dividend record or dividend payment dates, except as
required to comply with paragraph (c) below.
 
     (c) The Parties shall coordinate with one another as to the declaration and
payment of cash dividends on the shares of KeyCorp Common Stock and Society
Common Stock to be declared in 1994 so as to ensure that KeyCorp and Society
have declared, with the record dates prior to the Effective Time, the same
number of quarterly dividends in 1994.
 
     7.7 CAPITAL STOCK.
 
     (a) Except for or as otherwise permitted in or contemplated by this
Supplemental Agreement, the KeyCorp Stock Option Agreement, the Society Stock
Option Agreement, or as Previously Disclosed, without the prior written consent
of Society, from the date of this Supplemental Agreement to the earlier of the
Effective Time or the termination of this Supplemental Agreement, KeyCorp shall
not, and shall not enter into any agreement to, issue, sell, or otherwise permit
to become outstanding any additional shares of KeyCorp Common Stock, preferred
stock, or any other capital stock of KeyCorp, or any stock appreciation rights,
or any option, warrant, conversion, or other right to acquire any such stock, or
any security convertible into any such stock, other than pursuant to existing
employee stock option, stock appreciation rights, or similar stock based
employee compensation rights heretofore granted, the aggregate number of shares
of KeyCorp Common Stock covered by all existing grants being no more than
3,427,980 shares in the aggregate. No additional shares of KeyCorp Common Stock
shall become subject to new grants of employee stock options, stock appreciation
rights, or similar stock based employee compensation rights, other than in
accordance with the terms of the Career Equity Program.
 
     (b) Except for or as otherwise permitted in or contemplated by this
Supplemental Agreement, the KeyCorp Stock Option Agreement, the Society Stock
Option Agreement, or as Previously Disclosed, without the prior written consent
of KeyCorp, from the date of this Supplemental Agreement to the earlier of the
Effective Time or the termination of this Supplemental Agreement, Society shall
not, and shall not enter into any agreement to, issue, sell, or otherwise permit
to become outstanding any additional shares of Society Common Stock, preferred
stock, or any other capital stock of Society, or any stock appreciation rights,
or any option, warrant, conversion, or other right to acquire any such stock, or
any security convertible into any such stock, other than pursuant to existing
employee stock option, stock appreciation rights, or similar stock based
 
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<PAGE>   186
 
employee compensation rights heretofore granted, the aggregate number of shares
of Society Common Stock covered by all existing grants being no more than
6,005,464 shares in the aggregate. No additional shares of Society Common Stock
shall become subject to new grants of employee stock options, stock appreciation
rights, or similar stock based employee compensation rights.
 
     7.8 AGREEMENT OF AFFILIATES. Each of KeyCorp and Society shall deliver to
the other Party, no later than 30 days after the date of this Supplemental
Agreement, a letter identifying each person whom it reasonably believes is an
"affiliate" of such Party for purposes of Rule 145 under the 1933 Act.
Thereafter and until the date on which the Merger is approved by the Federal
Reserve Board, each of Society and KeyCorp shall identify to the other Party
each additional person whom it reasonably believes to have thereafter become an
"affiliate." Each of KeyCorp and Society shall use its best efforts to cause
each person who is identified as an "affiliate" pursuant to the two immediately
preceding sentences to deliver to KeyCorp and Society (for itself and as the
Surviving Corporation), not later than the date on which the Merger is approved
by the Federal Reserve, a written agreement, substantially in the form of
Exhibit V(A) or V(B), as applicable.
 
     7.9 CERTAIN ACTIONS. Neither KeyCorp nor Society (nor any of their
respective Subsidiaries) (i) shall solicit, initiate, participate in discussions
of, or encourage or take any other action to facilitate (including by way of the
disclosing or furnishing of any information that it is not legally obligated to
disclose or furnish) any inquiry or the making of any proposal relating to an
Acquisition Transaction or a potential Acquisition Transaction involving such
Party or any of its Subsidiaries or (ii) shall (A) solicit, initiate,
participate in discussions of, or encourage or take any other action to
facilitate any inquiry or proposal, or (B) enter into any agreement,
arrangement, or understanding (whether written or oral), regarding any proposal
or transaction (x) relating to an Acquisition Transaction or a potential
Acquisition Transaction involving the other Party or any of its Subsidiaries or
(y) providing for or requiring it to abandon, terminate, or fail to consummate
the Merger or any of the other transactions contemplated under this Supplemental
Agreement or the Merger Agreement or to forebear from exercising, or permit to
lapse, its rights under the option granted to it by such other Party pursuant to
the KeyCorp Stock Option Agreement or Society Stock Option Agreement, as the
case may be, or compensating it or any of its Subsidiaries under any of the
instances described in this clause (y). Each of KeyCorp and Society shall
immediately instruct and otherwise use its best efforts to cause its respective
directors, officers, employees, agents, advisors (including, without limitation,
any investment banker, attorney, or accountant retained by it or any of its
Subsidiaries), consultants, and other representatives to comply with such
prohibitions. KeyCorp and Society will each immediately cease and cause to be
terminated any existing activities, discussions, or negotiations with any
parties conducted heretofore with respect to any such activities. Neither
KeyCorp nor Society shall negotiate with respect to any such proposal, nor shall
it reach any agreement or understanding (formal or informal, written or
otherwise) with respect to any such proposal. Each of KeyCorp and Society shall
promptly notify the other Party orally and in writing in the event it receives
any such inquiry or proposal. This Section 7.9 shall not prohibit accurate
disclosure by a Party in any SEC Document (including the Joint Proxy Statement
and the Registration Statement) or other disclosure to the extent required by
the Securities Laws or other applicable law if in the opinion of the Board of
Directors of such Party (as of the date of such SEC Document or other
disclosure) disclosure is required under applicable law as to transactions
contemplated hereby.
 
     7.10 AGREEMENT AS TO EFFORTS TO CONSUMMATE. Subject to the terms and
conditions of this Supplemental Agreement, each of KeyCorp and Society agrees to
use its best efforts to take, or cause to be taken, all actions, and to do, or
cause to be done, all things, necessary, proper, or advisable under applicable
laws and regulations to consummate and make effective, as soon as practicable
after the date of this Supplemental Agreement, the transactions contemplated by
this Supplemental Agreement, including, without limitation, using its best
efforts to lift or rescind any injunction or restraining order or other order
adversely affecting the ability of the Parties to consummate the transactions
contemplated hereby. Each of KeyCorp and Society shall use, and shall cause each
of the KeyCorp Subsidiaries or Society Subsidiaries, as the case may be, to use,
its best efforts to obtain consents of all third parties and governmental bodies
necessary or desirable for the consummation of the transactions contemplated by
this Supplemental Agreement.
 
                                       31
<PAGE>   187
 
                                 ARTICLE EIGHT
 
                             ADDITIONAL AGREEMENTS
 
     8.1 REGISTRATION STATEMENT; SHAREHOLDER APPROVAL. Society shall file the
Registration Statement with the SEC, and KeyCorp and Society shall use their
best efforts to cause the Registration Statement to become effective under the
1933 Act. Society will take any action required to be taken under the applicable
state Blue Sky or securities laws in connection with the issuance of the shares
of the Surviving Corporation Capital Stock upon consummation of the Merger. Each
Party shall furnish all information concerning it and the holders of its capital
stock as the other Party may reasonably request in connection with such action.
KeyCorp and Society shall each call a Shareholders' Meeting to be held as soon
as reasonably practicable after the date of this Supplemental Agreement for the
purpose of voting upon the Merger. In connection with the Shareholders'
Meetings, (i) KeyCorp and Society shall prepare and file a Joint Proxy Statement
with the SEC and mail it to their shareholders, (ii) the Parties shall furnish
to each other all information concerning them that the Parties may reasonably
request in connection with such Joint Proxy Statement, (iii) the Board of
Directors of KeyCorp and Society shall recommend to their respective
shareholders the approval of this Supplemental Agreement and the Merger
Agreement, provided, however, that such recommendation may be withdrawn,
modified, or amended after the receipt by either Party of an offer to effect an
Acquisition Transaction with such Party to the extent the Board of Directors of
such Party reasonably determines that, in the exercise of its fiduciary
obligations, it is required to do so; provided, further that such determination
must be based on a signed written opinion of, in the case of KeyCorp, Sullivan &
Cromwell, and, in the case of Society, Thompson, Hine and Flory, and (iv)
KeyCorp and Society shall otherwise use their best efforts to obtain such
shareholders' approval. This Section 8.1 shall not prohibit accurate disclosure
by a Party in any SEC Document (including the Joint Proxy Statement and the
Registration Statement) or other disclosure to the extent required by the
Securities Laws or other applicable law if in the opinion of the Board of
Directors of such Party (as of the date of such SEC Document or other
disclosure) disclosure is required as to transactions contemplated hereby or as
to any takeover proposal. The Parties shall use all reasonable efforts to hold
the Shareholders' Meetings on the same date.
 
     8.2 FILINGS WITH THE STATE OFFICES. In connection with the Closing of the
Merger, KeyCorp and Society shall execute and file (i) the New York Certificate
of Merger with the Department of State of the State of New York, and (ii) the
Ohio Certificate of Merger with the Secretary of State of the State of Ohio.
 
     8.3 TAX OPINION. KeyCorp and Society agree to use their reasonable efforts
to obtain (i) a written opinion of Thompson, Hine and Flory addressed to Society
Corporation and (ii) a written opinion of Sullivan and Cromwell addressed to
KeyCorp, each dated the Closing Date, subject to the customary representations
and assumptions referred to therein, and substantially to the effect that (a)
the Merger will constitute a tax-free reorganization within the meaning of
Section 368(a)(1)(A) of the Internal Revenue Code and that KeyCorp and Society
will each be a party to the reorganization, (b) the exchange in the Merger of
the Surviving Corporation Capital Stock for KeyCorp Capital Stock will not give
rise to income, gain, or loss to KeyCorp, Society, or the shareholders of
KeyCorp with respect to such exchange (except, with respect to the shareholders
of KeyCorp, to the extent of any cash paid in lieu of fractional shares), (c)
the adjusted tax basis of the Surviving Corporation Capital Stock received by
KeyCorp shareholders who exchange all of their KeyCorp Capital Stock in the
Merger will be the same as the adjusted tax basis of the shares of the KeyCorp
Capital Stock surrendered in exchange therefor (reduced by any amount allocable
to a fractional share interest for which cash is received), and (d) the holding
period of the shares of the Surviving Corporation Capital Stock received in the
Merger will include the period during which the shares of KeyCorp Capital Stock
surrendered in exchange therefor were held, provided such shares of KeyCorp
Capital Stock were held as capital assets at the Effective Time (each, a "Tax
Opinion").
 
     8.4 ACCOUNTING TREATMENT. Neither Party will take, cause, or to the best of
its ability permit to be taken, any action that would adversely affect the
qualification of the Merger for pooling of interests accounting treatment;
provided that nothing herein shall preclude either Party from exercising its
respective rights under the KeyCorp Stock Option Agreement or the Society Stock
Option Agreement, as the case may be.
 
                                       32
<PAGE>   188
 
     8.5 PRESS RELEASES. Prior to the Effective Time, KeyCorp and Society shall
consult with each other as to the form and substance of any press release or
other public disclosure materially related to this Supplemental Agreement or any
other transaction contemplated hereby; provided, however, that nothing in this
Section 8.5 shall be deemed to prohibit any Party from making any disclosure
which its counsel deems necessary in order to satisfy such Party's disclosure
obligations imposed by law.
 
     8.6 APPLICATIONS. The Parties shall prepare and file applications with the
Federal Reserve, the OTS (if applicable), the State Regulatory Commissioners,
and any other appropriate governmental authorities seeking the approvals
necessary to consummate the transactions contemplated by this Supplemental
Agreement.
 
     8.7 NYSE LISTING. Society shall use its best efforts to obtain the approval
of the NYSE to the listing on the NYSE, upon official notice of issuance, of (i)
the Surviving Corporation Common Stock to be issued in connection with the
Merger (ii) the associated rights of the Surviving Corporation under the Society
Rights Plan that will accompany the Surviving Corporation Common Stock issued in
the Merger, and (iii) the Receipts described in the Deposit Agreement, dated as
of June 27, 1991, among KeyCorp, The Chase Manhattan Bank N.A., and the holders
of such Receipts (such Receipts relating to the Surviving Corporation Class A
Preferred Stock to be issued in the Merger).
 
                                  ARTICLE NINE
 
               CONDITIONS PRECEDENT TO OBLIGATIONS TO CONSUMMATE
 
     The obligations of KeyCorp, on the one hand, and Society, on the other
hand, to consummate the Merger are subject to the satisfaction of the following
conditions, unless waived by KeyCorp or Society, as the case may be, pursuant to
Section 11.5 of this Supplemental Agreement:
 
     9.1 REPRESENTATIONS AND WARRANTIES. The representations and warranties of
the other Party set forth or referred to in this Supplemental Agreement shall be
true and correct in all material respects as of the date of this Supplemental
Agreement and as of the Effective Time with the same effect as though all such
representations and warranties had been made on and as of the Effective Time,
except (i) for any such representations and warranties made as of a specified
date, which shall be true and correct in all material respects as of such date,
or (ii) as expressly contemplated or permitted by this Supplemental Agreement.
 
     9.2 PERFORMANCE OF AGREEMENTS AND COVENANTS. Each and all of the agreements
and covenants of the other Party to be performed and complied with pursuant to
this Supplemental Agreement and the other agreements contemplated hereby prior
to the Effective Time shall have been duly performed and complied with by it in
all material respects.
 
     9.3 CERTIFICATES. Each of the Parties shall have delivered to the other a
certificate, dated as of the Effective Time and signed on its behalf by its
chief executive officer and its chief financial officer, to the effect that (i)
the conditions of its obligations set forth in Section 9.1 and Section 9.2 of
this Supplemental Agreement with respect to it have been satisfied and (ii) that
there has been no material adverse change in the consolidated financial
condition, results of operations, or prospects of such Party and all of its
Subsidiaries on a consolidated basis from that reflected on the December 31,
1992 and June 30, 1993, financial statements included in the KeyCorp Financial
Statements as to KeyCorp and the Society Financial Statements as to Society, all
in such reasonable detail as the other Party shall request.
 
     9.4 SHAREHOLDER APPROVALS. The shareholders of KeyCorp and Society shall
have approved this Supplemental Agreement, the Merger Agreement, the Merger, and
the consummation of the transactions contemplated hereby and thereby, as and to
the extent required by law and by the provisions of any governing instruments,
and each Party shall have furnished to the other certified copies of resolutions
duly adopted by such Party's shareholders evidencing the same. In addition, the
holders of the requisite percentage of shares of KeyCorp Common Stock and
Society Common Stock sufficient, either alone or in combination with other
factors, to preclude accounting for the Merger as a pooling of interests shall
not have perfected dissenters' rights under applicable law with respect to the
adoption of this Supplemental Agreement and the Merger Agreement.
 
                                       33
<PAGE>   189
 
     9.5 CONSENTS AND APPROVALS. All material approvals and authorizations of,
filings and registrations with, and notifications to, all Regulatory Authorities
required for consummation of the Merger and for the prevention of any
termination of any material right, privilege, license, or agreement of either
Party or any of its respective Subsidiaries shall have been obtained or made and
shall be in full force and effect and all waiting periods required by law shall
have expired. Any approval obtained from any Regulatory Authority which is
necessary to consummate the transactions contemplated hereby shall not be
conditioned or restricted in a manner which in the reasonable judgment of the
Board of Directors of both KeyCorp and Society so materially and adversely
affects the economic or business assumptions of the transactions contemplated by
this Supplemental Agreement so as to render inadvisable the consummation of the
Merger. To the extent that any lease, license, loan, or financing agreement or
other contract or agreement to which any Party or any of its Subsidiaries, as
the case may be, is a party requires the consent of or waiver from the other
party thereto as a result of the transactions contemplated by this Supplemental
Agreement, such consent or waiver shall have been obtained, unless the failure
to obtain such consent or waiver would not have a material adverse effect on the
consolidated financial condition, results of operations, or prospects of such
Party and all of its Subsidiaries on a consolidated basis from that reflected on
the December 31, 1992 and June 30, 1993 financial statements included in the
KeyCorp Financial Statements as to KeyCorp and the Society Financial Statements
as to Society, following the Merger.
 
     9.6 LEGAL PROCEEDINGS. Neither KeyCorp, nor Society shall be subject to any
order, decree, or injunction of a court or agency of competent jurisdiction
which enjoins or prohibits consummation of the transactions contemplated by this
Supplemental Agreement and the Merger Agreement.
 
     9.7 ACCOUNTANTS' LETTERS. Each of the Parties shall have received letters,
dated as of the Effective Time, from Ernst & Young to the effect that the Merger
will qualify for pooling of interests accounting treatment under Accounting
Principles Board Opinion No. 16 if closed and consummated in accordance with
this Supplemental Agreement and the Merger Agreement.
 
     9.8 TAX MATTERS. Each Party shall have received the Tax Opinion addressed
to it referred to in Section 8.3 of this Supplemental Agreement.
 
     9.9 REGISTRATION STATEMENT. The Registration Statement shall be effective
under the 1933 Act and no stop orders suspending the effectiveness of the
Registration Statement shall be in effect and no proceedings for such purpose
shall be pending before or threatened by the SEC.
 
     9.10 RIGHTS PLANS. No "Shares Acquisition Date" or "Triggering Event" shall
have occurred under the Society Rights Plan. Society is not an "Acquiring
Person" under the terms of the KeyCorp Rights Plan and no "Flip-in Date", "Flip-
over Transaction or Event", "Separation Time", or "Stock Acquisition Date" shall
have occurred under the KeyCorp Rights Plan. At or prior to the Effective Time,
the KeyCorp Rights Plan shall have terminated in accordance with its terms.
 
                                       34
<PAGE>   190
 
                                  ARTICLE TEN
 
                                  TERMINATION
 
     10.1 TERMINATION. Notwithstanding any other provision of this Supplemental
Agreement or the Merger Agreement and notwithstanding the approval of this
Supplemental Agreement and the Merger Agreement by the shareholders of KeyCorp
and Society or both, this Supplemental Agreement and the Merger Agreement may be
terminated and the Merger abandoned at any time prior to the Effective Time:
 
     (a) By a vote of a majority of the Boards of Directors of both of KeyCorp
and Society; or
 
     (b) By a vote of a majority of the Board of Directors of either KeyCorp or
Society in the event of a material breach by the other Party of any
representation, warranty, covenant, or agreement contained herein which would
result in the failure to satisfy the closing condition set forth in Section 9.1
or 9.2 of this Supplemental Agreement which breach cannot be or has not been
cured within 30 days after the giving of a written notice to the breaching Party
of such material breach; or
 
     (c) By a vote of a majority of the Board of Directors of either KeyCorp or
Society in the event that the Merger shall not have been consummated by December
31, 1994; or
 
     (d) By a vote of a majority of the Board of Directors of either KeyCorp or
Society in the event (i) any approval of any governmental or other Regulatory
Authority required for consummation of the Merger and the other transactions
contemplated hereby shall have been denied by final non-appealable action of
such authority or if any action taken by such authority is not appealed within
the time limit for appeal or (ii) if the shareholders of KeyCorp or Society fail
to have approved the Supplemental Agreement, the Merger Agreement, the Merger,
and the consummation of the transactions contemplated hereby and thereby at the
Shareholders' Meetings to the extent required by law and by the provisions of
any governing instruments; or
 
     (e) By a vote of a majority of the Board of Directors of either KeyCorp or
Society in the event that any of the conditions precedent to the obligations of
such Party to consummate the Merger cannot be satisfied or fulfilled on or
before December 31, 1994 (other than by reason of a breach by the party seeking
to terminate); or
 
     (f) By a vote of a majority of the Board of Directors of either KeyCorp or
Society in the event of the acquisition, by any person or group of persons, of
beneficial ownership of 25% or more of the outstanding shares of common stock of
the other Party (the terms "person," "group," and "beneficial ownership" having
the meanings assigned thereto in Section 13(d) of the 1934 Act and the
regulations promulgated thereunder).
 
     10.2 EFFECT OF TERMINATION. In the event of the termination and abandonment
of this Supplemental Agreement and the Merger Agreement pursuant to Section 10.1
of this Supplemental Agreement, this Supplemental Agreement and the Merger
Agreement shall become void and have no effect, except that (i) the provisions
of the last sentence of 7.4 (as to the last sentence only), 8.5, and Article
Eleven of this Supplemental Agreement shall survive any such termination and
abandonment, (ii) each of the KeyCorp Stock Option Agreement and the Society
Stock Option Agreement shall be governed by its own terms as to termination, and
(iii) a termination pursuant to Sections 10.1(b) or 10.1(e) of this Supplemental
Agreement shall not relieve a breaching Party from liability for any breach
giving rise to such termination.
 
     10.3 SURVIVAL OF REPRESENTATIONS, WARRANTIES, AND COVENANTS. The respective
representations, warranties, obligations, covenants, and agreements of the
Parties shall not survive the Effective Time except (i) this Section 10.3 and
Sections 2.2, and Article Four of this Supplemental Agreement and (ii) the
Merger Agreement, provided that no such representations, warranties, or
covenants shall be deemed to be terminated or extinguished so as to deprive
KeyCorp or Society (or any director, officer, or controlling person thereof) of
any defense in law or equity which otherwise would be available against the
claims of any person, including, without limitation, any shareholder or former
shareholder of either KeyCorp or Society, the aforesaid representations,
warranties, and covenants being material inducements to consummation by KeyCorp,
Society, and the Surviving Corporation of the transactions contemplated hereby.
Notwithstanding anything to the contrary in this Supplemental Agreement, in
general, and in this Section 10.3 in particular, and in the Merger Agreement,
the respective representations, warranties, obligations, covenants, and
agreements of the Parties that will survive the Effective Time pursuant to this
Section 10.3 shall be
 
                                       35
<PAGE>   191
 
deemed to be automatically amended to the extent necessary to conform to the
provisions of the Surviving Corporation Articles of Incorporation and/or the
Surviving Corporation Regulations as either of them may be from time to time
amended after the Effective Time pursuant to the provisions thereof or
applicable law.
 
                                 ARTICLE ELEVEN
 
                                 MISCELLANEOUS
 
     11.1 EXPENSES.
 
     (a) Except as provided in Section 11.1(b) of this Supplemental Agreement,
each of the Parties shall bear and pay all costs and expenses incurred by it or
on its behalf in connection with the transactions contemplated hereunder,
including fees and expenses of its own financial or other consultants,
investment bankers, accountants, and counsel, except that KeyCorp, on the one
hand, and Society, on the other hand, shall bear and pay one-half of the
following expenses: (i) the costs incurred in connection with the preparing and
printing of the Registration Statement and the Joint Proxy Statement, and (ii)
all listing, filing, or registration fees paid by or incurred on behalf of the
Surviving Corporation, including, without limitation, fees paid for filing the
Registration Statement and the Joint Proxy Statement with the SEC, fees paid for
filings with Regulatory Authorities, and NYSE listing fees.
 
     (b) Notwithstanding the foregoing, a Party (the "Expense Paying Party")
shall pay all of the costs and expenses incurred by the other Party (the
"Reimbursed Party") (without duplication pursuant to this Supplemental Agreement
or any other agreement or instrument) in connection with this Supplemental
Agreement and the transactions contemplated hereunder, including fees and
expenses of such Reimbursed Party's financial or other consultants, investment
bankers, accountants, and counsel, if:
 
          (i) the Reimbursed Party terminates this Supplemental Agreement
     pursuant to Section 10.1(b) by reason of a material breach by the Expense
     Paying Party, and the Expense Paying Party is at the time of the
     termination not also entitled to terminate this Supplemental Agreement
     pursuant to Section 10.1(b) by reason of a material breach by the
     Reimbursed Party; or
 
          (ii) a Repurchase Event occurs (x) with respect to the KeyCorp Stock
     Option Agreement if KeyCorp is the Expense Paying Party or (y) with respect
     to the Society Stock Option Agreement if Society is the Expense Paying
     Party, and the Merger has not been, or thereafter is not, consummated for
     any reason other than a termination pursuant to Section 10.1(b) because of
     a material breach by the Reimbursed Party.
 
Nothing contained in this Section 11.1(b) shall constitute or shall be deemed to
constitute liquidated damages for the breach by a Party of the terms of this
Supplemental Agreement or otherwise limit the rights of the nonbreaching Party.
 
     (c) Final settlement with respect to payment of fees and expenses by the
Parties pursuant to Section 11.1 of this Supplemental Agreement shall be made
within 30 days of the termination of this Supplemental Agreement and the Merger
Agreement.
 
     11.2 BROKERS AND FINDERS. Except as Previously Disclosed, each of the
Parties represents and warrants that neither it nor any of its officers,
directors, employees, affiliates, or Subsidiaries has employed any broker or
finder or incurred any liability for any financial advisory fees, investment
bankers' fees, brokerage fees, commissions, or finders' fees in connection with
this Supplemental Agreement or the transactions contemplated hereby. In the
event of a claim by any broker or finder based upon his or its representing or
being retained by or allegedly representing or being retained by either KeyCorp
or Society, KeyCorp or Society, as the case may be, agrees to indemnify and hold
the other Party harmless of and from any such claim.
 
     11.3 ENTIRE AGREEMENT. Except as otherwise expressly provided herein, this
Supplemental Agreement, the Merger Agreement, the KeyCorp Stock Option
Agreement, the Society Stock Option Agreement and each of the Confidentiality
Letters, contain the entire agreement between the Parties with respect to the
transactions contemplated hereunder and thereunder, and such agreements
supersede all prior arrangements or understandings with respect thereto, written
or oral. The terms and conditions of this
 
                                       36
<PAGE>   192
 
Supplemental Agreement shall inure to the benefit of and be binding upon the
Parties and their respective successors. Nothing in this Supplemental Agreement
expressed or implied, is intended to confer upon any party, other than the
Parties, the Surviving Corporation, or their respective successors, any rights,
remedies, obligations, or liabilities under or by reason of this Supplemental
Agreement except as provided in Sections 4.1, 4.2, 4.3, 4.5, and 4.6.
 
     11.4 AMENDMENTS. To the extent permitted by law, this Supplemental
Agreement or the Merger Agreement may be amended by a subsequent writing signed
by each of the Parties upon the approval of the Boards of Directors of each of
the Parties; provided, however, that the provisions of the Merger Agreement
relating to the manner or basis in which shares of KeyCorp Capital Stock will be
exchanged for the Surviving Corporation Capital Stock shall not be amended after
the Shareholders' Meetings without any requisite approval of the holders of the
issued and outstanding shares of KeyCorp Capital Stock and Society Common Stock
entitled to vote thereon. The Parties may, without approval of their respective
Boards of Directors, make such technical changes to this Supplemental Agreement
or the Merger Agreement, not inconsistent with the purposes hereof and thereof,
as may be required to effect or facilitate any governmental approval or
acceptance of the Merger or of this Supplemental Agreement or the Merger
Agreement or to effect or facilitate any filing or recording required for the
consummation of any of the transactions contemplated hereby or thereby.
 
     11.5 WAIVERS. Prior to or at the Effective Time, KeyCorp, acting through
its Board of Directors or chief executive officer or other authorized officer,
shall, as to KeyCorp's rights hereunder, have the right to waive any default in
the performance of any term of this Supplemental Agreement by Society, to waive
or extend the time for the compliance or fulfillment by Society of any and all
of its obligations under this Supplemental Agreement, and to waive any or all of
the conditions precedent to the obligations of KeyCorp under this Supplemental
Agreement. Prior to or at the Effective Time, Society, acting through its Board
of Directors or chief executive officer or other authorized officer, shall, as
to Society's rights hereunder, have the right to waive any default in the
performance of any term of this Supplemental Agreement by KeyCorp, to waive or
extend the time for the compliance or fulfillment by KeyCorp of any and all of
its obligations under this Supplemental Agreement, and to waive any or all of
the conditions precedent to the obligations of Society under this Supplemental
Agreement.
 
     11.6 NO ASSIGNMENT. Neither of the Parties may assign any of its rights or
obligations under this Supplemental Agreement to any other person and any such
purported assignment shall be deemed null and void.
 
     11.7 SPECIFIC ENFORCEABILITY. The Parties recognize and hereby acknowledge
that it is impossible to measure in money the damages that would result to a
Party by reason of the failure of any of the Parties to perform any of the
obligations imposed on it by this Supplemental Agreement and that in any event
damages would be an inadequate remedy in this instance. Accordingly, if any
Party should institute an action or proceeding seeking specific enforcement of
the provisions hereof, the Party against which such action or proceeding is
brought hereby waives the claim or defense that the Party instituting such
action or proceeding has an adequate remedy at law and hereby agrees not to
assert in any such action or proceeding the claim or defense that such a remedy
at law exists and shall waive or not assert any requirement to post bond in
connection with seeking specific performance.
 
     11.8 NOTICES. All notices or other communications which are required or
permitted hereunder shall be in writing and sufficient if delivered by hand, by
facsimile transmission, or by registered or certified mail, postage pre-paid to
the persons at the addresses set forth below (or at such other address as may be
provided hereunder), and shall be deemed to have been delivered as of the date
so delivered:
 
KeyCorp:                                    KeyCorp
                                            One KeyCorp Plaza
                                            P.O. Box 88
                                            Albany, New York 12201-0088
                                            Telecopy Number: (518) 487-4270
                                            Attention: Victor J. Riley, Jr.
                                                       Chairman of the Board
 
                                       37
<PAGE>   193
 
Copy to Counsel:                            KeyCorp
                                            One KeyCorp Plaza
                                            P.O. Box 88
                                            Albany, New York 12201-0088
                                            Telecopy Number: (518) 487-4270
                                            Attention: Walter V. Ferris, Esq.
                                                       Executive Vice President
                                                       and General Counsel
 
Society:                                    Society Corporation
                                            127 Public Square
                                            Cleveland, Ohio 44114
                                            Telecopy Number: (216) 689-7827
                                            Attention: Robert W. Gillespie
                                                       Chairman of the Board
 
Copy to Counsel:                            Society Corporation
                                            127 Public Square
                                            Cleveland, Ohio 44114
                                            Telecopy Number: (216) 689-5681
                                            Attention: Lawrence J. Carlini, Esq.
                                                       General Counsel and
                                                       Secretary
 
     11.9 GOVERNING LAW. This Supplemental Agreement shall be governed by and
construed in accordance with the laws of Ohio except to the extent the laws of
the Business Corporation Law of the State of New York shall be applicable.
 
     11.10 COUNTERPARTS. This Supplemental Agreement may be executed in one or
more counterparts, each of which shall constitute one and the same instrument.
 
     11.11 CAPTIONS. The captions contained in this Supplemental Agreement are
for reference purposes only and are not part of this Supplemental Agreement.
 
                                       38
<PAGE>   194
 
     IN WITNESS WHEREOF, each of the Parties has caused this Supplemental
Agreement to be executed on its behalf and its corporate seal to be hereunto
affixed and attested by officers thereunto duly authorized all as of the day and
year first above written.
 
                                            KEYCORP
                                            By: /s/  VICTOR J. RILEY, JR.
                                                     Victor J. Riley, Jr.
                                                     Chairman of the Board
 
ATTEST: /s/ ROBERT W. BROUCHARD
            Robert W. Bouchard
            Secretary
                                                                [CORPORATE SEAL]
 
                                            SOCIETY CORPORATION
                                            By: /s/ ROBERT W. GILLESPIE
                                                    Robert W. Gillespie
                                                    Chairman of the Board
 
                                            And: /s/ LAWRENCE J. CARLINI
                                                     Lawrence J. Carlini
                                                     Secretary
 
                                                                [CORPORATE SEAL]
 
                                       39
<PAGE>   195
 
                                                                    EXHIBIT V(A)
 
Gentlemen:
 
     I have been advised that as of the date hereof I may be deemed to be an
"affiliate" of KeyCorp, a New York corporation ("KeyCorp"), as the term
"affiliate" is (i) defined for purposes of paragraphs (c) and (d) of Rule 145 of
the Rules and Regulations (the "Rules and Regulations") of the Securities and
Exchange Commission (the "Commission") under the Securities Act of 1933, as
amended (the "Act"), and/or (ii) used in and for purposes of Accounting Series,
Releases 130 and 135, as amended, of the Commission. Pursuant to the terms of
the Supplemental Agreement to the Agreement and Plan of Merger, dated as of
October 1, 1993, by and between KeyCorp and Society Corporation, an Ohio
corporation ("Society"), and the related Agreement and Plan of Merger
(collectively, the "Agreements"), KeyCorp will be merged (the "Merger") into and
with Society and the name of the surviving corporation will be Key Bancshares
Inc., an Ohio corporation (the "Surviving Corporation").
 
     As used herein, "KeyCorp Capital Stock" means the Common Shares, par value
$5.00 per share, of KeyCorp and the 10% Cumulative Preferred Stock, Series B, of
KeyCorp and "Surviving Corporation Capital Stock" means the Common Shares, with
a par value of $1 each, of the Surviving Corporation and the 10% Cumulative
Preferred Stock, Class A, of the Surviving Corporation.
 
     I represent, warrant, and covenant to the Surviving Corporation that in the
event I receive any Surviving Corporation Capital Stock as a result of the
Merger:
 
          A. I shall not make any sale, transfer, or other disposition of any
     Surviving Corporation Capital Stock acquired by me in the Merger in
     violation of the Act or the Rules and Regulations.
 
          B. I have carefully read this letter and the Agreements and discussed
     their requirements and other applicable limitations upon my ability to
     sell, transfer, or otherwise dispose of Surviving Corporation Capital
     Stock, to the extent I felt necessary, with my counsel or counsel for
     KeyCorp.
 
          C. I have been advised that the issuance of Surviving Corporation
     Capital Stock to me pursuant to the Merger has been or will be registered
     with the Commission under the Act on a Registration Statement on Form S-4.
     However, I have also been advised that, because at the time the Merger will
     be submitted for a vote of the shareholders of KeyCorp, I may be deemed to
     be an affiliate of KeyCorp, the distribution by me of any Surviving
     Corporation Capital Stock acquired by me in the Merger will not be
     registered under the Act and that I may not sell, transfer, or otherwise
     dispose of any Surviving Corporation Capital Stock acquired by me in the
     Merger unless (i) such sale, transfer, or other disposition has been
     registered under the Act, (ii) such sale, transfer, or other disposition is
     made in conformity with the volume and other limitations of Rule 145
     promulgated by the Commission under the Act, or (iii) in the opinion of
     counsel reasonably acceptable to the Surviving Corporation, such sale,
     transfer, or other disposition is otherwise exempt from registration under
     the Act.
 
          D. I understand that the Surviving Corporation is under no obligation
     to register under the Act the sale, transfer, or other disposition by me or
     on my behalf of any Surviving Corporation Capital Stock acquired by me in
     the Merger or to take any other action necessary in order to make an
     exemption from such registration available.
 
          E. I also understand that stop transfer instructions will be given to
     the Surviving Corporation's transfer agents with respect to Surviving
     Corporation Capital Stock and that there will be placed on the certificates
     for the Surviving Corporation Capital Stock acquired by me in the Merger,
     or any substitutions therefor, a legend stating in substance:
 
             "The shares represented by this certificate were issued in a
        transaction to which Rule 145 promulgated under the Securities Act of
        1933 applies. The shares represented by this certificate may only be
        transferred in accordance with the terms of an agreement dated
                  , 1993 between the registered holder hereof and the issuer of
        the certificate, a copy of which agreement will be mailed to the holder
        hereof without charge within five days after receipt of written request
        therefor."
 
                                        1
<PAGE>   196
 
          F. I also understand that unless the transfer by me of my Surviving
     Corporation Capital Stock has been registered under the Act or is a sale
     made in conformity with the provisions of Rule 145, the Surviving
     Corporation reserves the right to put the following legend on the
     certificates issued to my transferee:
 
             "The shares represented by this certificate have not been
        registered under the Securities Act of 1933 and were acquired from a
        person who received such shares in a transaction to which Rule 145
        promulgated under the Securities Act of 1933 applies. The shares may not
        be sold, pledged or otherwise transferred except in accordance with an
        exemption from the registration requirements of the Securities Act of
        1933."
 
     It is understood and agreed that the legends set forth in paragraph E and F
above shall be removed by delivery of substitute certificates without such
legend if the undersigned shall have delivered to the Surviving Corporation a
copy of a letter from the staff of the Commission, or an opinion of counsel in
form and substance reasonably satisfactory to the Surviving Corporation, to the
effect that such legend is not required for purposes of the Act.
 
     I further represent to and covenant with KeyCorp and the Surviving
Corporation that I will not, within the 30 days prior to the Effective Time (as
defined in the Agreements), sell, transfer, or otherwise dispose of any shares
of KeyCorp Capital Stock and that I will not sell, transfer, or otherwise
dispose of any shares of Surviving Corporation Capital Stock (whether or not
acquired by me in the Merger) until after such time as results covering at least
30 days of combined operations of KeyCorp and Society have been published by the
Surviving Corporation, in the form of a quarterly earnings report, an effective
registration statement filed with the Commission, a report to the Commission on
Form 10-K, 10-Q, or 8-K, or any other public filing or announcement which
includes the combined results of operations. Furthermore, I understand that
KeyCorp and the Surviving Corporation will give stop transfer instructions to
their respective transfer agents in order to prevent the breach of the
representations, warranties, and covenants made by me in this paragraph. I also
understand that the Merger is intended to be treated for accounting purposes as
a "pooling of interests", and I agree that, if KeyCorp or the Surviving
Corporation advises me in writing that additional restrictions apply to my
ability to sell, transfer, or otherwise dispose of KeyCorp Capital Stock or
Surviving Corporation Capital Stock in order to be entitled to use the pooling
of interest accounting method, I will abide by such restrictions.
 
                                            Very truly yours,
 
                                            by
                                               Name:
 
Accepted this           day of
            , 1993,
 
  by
 
     Name:
     Title:
 
                                        2
<PAGE>   197
 
                                                                    EXHIBIT V(B)
 
Gentlemen:
 
     I have been advised that as of the date hereof I may be deemed to be an
"affiliate" of Society Corporation, an Ohio corporation ("Society"), as the term
"affiliate" is (i) defined for purposes of paragraphs (c) and (d) of Rule 145 of
the Rules and Regulations (the "Rules and Regulations") of the Securities and
Exchange Commission (the "Commission") under the Securities Act of 1933, as
amended (the "Act"), and/or (ii) used in and for purposes of Accounting Series,
Releases 130 and 135, as amended, of the Commission. Pursuant to the terms of
the Supplemental Agreement to the Agreement and Plan of Merger, dated as of
October 1, 1993 by and between KeyCorp, a New York corporation ("KeyCorp"), and
Society, and the related Agreement and Plan of Merger, (collectively, the
"Agreements"), KeyCorp will be merged (the "Merger") into and with Society and
the name of the surviving corporation will be Key Bancshares Inc., an Ohio
corporation (the "Surviving Corporation").
 
     As used herein, "Society Capital Stock" means the Common Shares, with a par
value of $1 each, of Society, and "Surviving Corporation Capital Stock" means
the Common Shares, with a par value of $1 each, of the Surviving Corporation and
the 10% Cumulative Preferred Stock, Class A, of the Surviving Corporation.
 
     I represent, warrant, and covenant to the Surviving Corporation that in the
event I receive any Surviving Corporation Capital Stock as a result of the
Merger:
 
          A. I shall not make any sale, transfer or other disposition of any
     Surviving Corporation Capital Stock acquired by me in the Merger in
     violation of the Act or the Rules and Regulations.
 
          B. I have carefully read this letter and the Agreements and discussed
     their requirements and other applicable limitations upon my ability to
     sell, transfer, or otherwise dispose of Surviving Corporation Capital
     Stock, to the extent I felt necessary, with my counsel or counsel for
     Society.
 
          C. I have been advised that the issuance of Surviving Corporation
     Capital Stock to me pursuant to the Merger has been or will be registered
     with the Commission under the Act on a Registration Statement on Form S-4.
     However, I have also been advised that, because at the time the Merger will
     be submitted for a vote of the shareholders of Society, I may be deemed to
     be an affiliate of Society, the distribution by me of any Surviving
     Corporation Capital Stock acquired by me in the Merger will not be
     registered under the Act and that I may not sell, transfer, or otherwise
     dispose of any Surviving Corporation Capital Stock acquired by me in the
     Merger unless (i) such sale, transfer, or other disposition has been
     registered under the Act, (ii) such sale, transfer, or other disposition is
     made in conformity with the volume and other limitations of Rule 145
     promulgated by the Commission under the Act, or (iii) in the opinion of
     counsel reasonably acceptable to the Surviving Corporation, such sale,
     transfer, or other disposition is otherwise exempt from registration under
     the Act.
 
          D. I understand that the Surviving Corporation is under no obligation
     to register under the Act the sale, transfer, or other disposition by me or
     on my behalf of any Surviving Corporation Capital Stock acquired by me in
     the Merger or to take any other action necessary in order to make an
     exemption from such registration available.
 
          E. I also understand that stop transfer instructions will be given to
     the Surviving Corporation's transfer agents with respect to Surviving
     Corporation Capital Stock and that there will be placed on the certificates
     for the Surviving Corporation Capital Stock acquired by me in the Merger,
     or any substitutions therefor, a legend stating in substance:
 
             "The shares represented by this certificate were issued in a
        transaction to which Rule 145 promulgated under the Securities Act of
        1933 applies. The shares represented by this certificate may only be
        transferred in accordance with the terms of an agreement dated   , 1993
        between the registered holder hereof and the issuer of this certificate,
        a copy of which agreement will be mailed to the holder hereof without
        charge within five days after receipt of written request therefor."
 
          F. I also understand that unless the transfer by me of my Surviving
     Corporation Capital Stock has been registered under the Act or is a sale
     made in conformity with the provisions of Rule 145, the
 
                                        1
<PAGE>   198
 
     Surviving Corporation reserves the right to put the following legend on the
     certificates issued to my transferee:
 
             "The shares represented by this certificate have not been
        registered under the Securities Act of 1933 and were acquired from a
        person who received such shares in a transaction to which Rule 145
        promulgated under the Securities Act of 1933 applies. The shares may not
        be sold, pledged or otherwise transferred except in accordance with an
        exemption from the registration requirements of the Securities Act of
        1933."
 
     It is understood and agreed that the legends set forth in paragraph E and F
above shall be removed by the delivery of substitute certificates without such
legend if the undersigned shall have delivered to the Surviving Corporation a
copy of a letter from the staff of the Commission, or an opinion of counsel in
form and substance reasonably satisfactory to the Surviving Corporation, to the
effect that such legend is not required for purposes of the Act.
 
     I further represent to and covenant with Society and the Surviving
Corporation that I will not, within the 30 days prior to the Effective Time (as
defined in the Agreements), sell, transfer, or otherwise dispose of any shares
of Society Capital Stock and that I will not sell, transfer, or otherwise
dispose of any shares of Surviving Corporation Capital Stock (whether or not
acquired by me in the Merger) until after such time as results covering at least
30 days of combined operations of KeyCorp and Society have been published by the
Surviving Corporation, in the form of a quarterly earnings report, an effective
registration statement filed with the Commission, a report to the Commission on
Form 10-K, 10-Q, or 8-K, or any other public filing or announcement which
includes the combined results of operations. Furthermore, I understand that
Society and the Surviving Corporation will give stop transfer instructions to
their respective transfer agents in order to prevent the breach of the
representations, warranties, and covenants made by me in this paragraph. I also
understand that the Merger is intended to be treated for accounting purposes as
a "pooling of interests", and I agree that, if Society or the Surviving
Corporation advises me in writing that additional restrictions apply to my
ability to sell, transfer, or otherwise dispose of Society Capital Stock or
Surviving Corporation Capital Stock in order to be entitled to use the pooling
of interest accounting method, I will abide by such restrictions.
 
                                            Very truly yours,
 
                                            by
 
                                            ------------------------------------
                                            Name:
 
Accepted this   day of
               , 1993,
 
by
 
- ------------------------------------------------------
Name:
Title:
 
                                        2
<PAGE>   199
 
                                                                   APPENDIX III.
<PAGE>   200
 
                                                                    APPENDIX III
SALOMON BROTHERS INC
SEVEN WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
 
212-783-7000
 
                                                   ------------------------
 
                                                           SALOMON BROTHERS
                                                           ---------------------
 
                                        December 29, 1993
 
Board of Directors
KeyCorp
One KeyCorp Plaza
30 South Pearl Street
Albany, NY 12201
 
Members of the Board:
 
     You have requested our opinion as investment bankers as to the fairness,
from a financial point of view, to the common stockholders of KeyCorp
("KeyCorp") of the exchange ratio for the exchange of shares of KeyCorp common
stock (the "Exchange Ratio") in the proposed merger (the "Merger") of KeyCorp
and Society Corporation ("Society"), pursuant to the Supplemental Agreement to
Agreement and Plan of Merger and the related Agreement and Plan of Merger, both
dated as of October 1, 1993, by and between KeyCorp and Society (collectively,
the "Agreement"). Under the terms of the Agreement, each outstanding share of
common stock, $5.00 par value per share, of KeyCorp ("KeyCorp Common Stock"),
will be converted into 1.205 shares of common stock, $1.00 par value per share,
of Society ("Society Common Stock").
 
     Pursuant to the Agreement, KeyCorp and Society entered into separate stock
option agreements (the "Stock Option Agreements") by which Society granted to
KeyCorp an option to purchase up to 19.9% of the outstanding shares of Society
Common Stock, at a price per share and on the terms and conditions set forth
therein and KeyCorp granted to Society an option to purchase up to 19.9% of the
outstanding shares of KeyCorp Common Stock, at a price per share and on the
terms and conditions set forth therein.
 
     We understand that the Merger is conditioned upon, among other things,
receipt of a letter from KeyCorp's and Society's independent public accountants
to the effect that the Merger will qualify for pooling-of-interests accounting
treatment and an opinion of counsel or favorable ruling from the Internal
Revenue Service to the effect that the Merger constitutes a tax-free transaction
under the Internal Revenue Code. The terms of the Merger are more fully set
forth in the Agreement.
 
     As you are aware, Salomon Brothers Inc from time to time has provided
investment banking and financial advisory services to KeyCorp for which we have
received customary compensation. Such services have included acting as an agent
for KeyCorp's Medium Term Note Program, acting as a managing underwriter of
offerings of common stock, preferred stock and subordinated debt and acting as
financial advisor in the acquisition of Puget Sound Bancorp, for which we have
received customary compensation. In addition, in the ordinary course of our
securities business we actively trade the debt and equity securities of KeyCorp
and Society for our own account and the accounts of our customers, and
accordingly, at any time may hold a long or short position in such securities.
 
     In arriving at our opinion, we have reviewed and analyzed, among other
things, the following: (i) the Agreement and the Stock Option Agreements; (ii)
the Annual Reports on Form 10-K of KeyCorp and Society for each year in the
three year period ended December 31, 1992; (iii) the Quarterly Reports on Form
10-Q of KeyCorp and Society for the quarters ended March 31, 1993, June 30, 1993
and September 30, 1993; (iv) Reports on Form 8-K of KeyCorp dated October 1,
1993 and October 13, 1993 and of Society dated
 
                                        1
<PAGE>   201
 
October 1, 1993 and November 19, 1993; (v) the Joint Proxy Statement of KeyCorp
and Society dated the date hereof; (vi) certain other publicly available
financial and other information concerning KeyCorp and Society and the trading
markets for the publicly traded securities of KeyCorp and Society; (vii) certain
other internal information, including projections, relating to KeyCorp and
Society prepared by the managements of KeyCorp and Society and furnished to us
for the purpose of our analysis; and (viii) publicly available information
concerning other banks and bank holding companies, the trading markets for their
securities and the nature and terms of certain other merger transactions we
believe relevant to our inquiry. We have also met with certain officers and
representatives of KeyCorp and Society to discuss the foregoing as well as other
matters we believe relevant to our inquiry,
 
     In conducting our review and in arriving at our opinion, we have relied
upon and assumed the accuracy and completeness of the financial and other
information provided to us or publicly available and have not attempted
independently to verify the same. We have relied upon the managements of KeyCorp
and Society as to the reasonableness and achievability of the projections (and
the assumptions and bases therefor) provided to us, and we have assumed that
such projections reflect the best currently available estimates and judgments of
such managements and that such projections will be realized in the amounts and
in the time periods currently estimated by such managements. We have also
assumed, without independent verification, that the aggregate allowances for
loan losses for KeyCorp and Society are adequate to cover such losses. We have
not made or obtained any evaluations or appraisals of the property of KeyCorp or
Society, nor have we examined any individual loan credit files. It is understood
that we were retained by the Board of Directors of KeyCorp and that our opinion
as expressed herein is limited to the fairness, from a financial point of view,
to the common stockholders of KeyCorp of the Exchange Ratio in the Merger and
does not address KeyCorp's underlying business decision to proceed with the
Merger.
 
     We have considered such financial and other factors as we have deemed
appropriate under the circumstances, including, among others, the following: (i)
the historical and current financial position and results of operations of
KeyCorp and Society, including interest income, interest expense, net interest
income, net interest margin, non-interest income, non-interest expense,
earnings, dividends, internal capital generation, book value, intangible assets,
return on assets, return on stockholders' equity, the amount and type of non-
performing assets, the reserve for loan losses and capitalization all as set
forth in the financial statements for KeyCorp and Society; (ii) the assets and
liabilities of KeyCorp and Society, including the loan and investment
portfolios, deposits, other liabilities, historical and current liability
sources and costs and liquidity; (iii) certain pro forma combined financial
information of KeyCorp and Society; (iv) historical and current market data for
KeyCorp Common Stock and Society Common Stock; and (v) the nature and terms of
certain other merger transactions involving banks and bank holding companies. We
have also taken into account our assessment of general economic, market and
financial conditions and our experience in similar transactions, as well as our
experience in securities valuation and our knowledge of the banking industry
generally. Our opinion is necessarily based upon conditions as they exist and
can be evaluated on the date hereof and the information made available to us
through the date hereof. This letter does not constitute a recommendation to the
Board of Directors or to any common stockholder of KeyCorp with respect to any
approval of the Merger.
 
     Based upon and subject to the foregoing, it is our opinion as investment
bankers, that, as of the date hereof, the Exchange Ratio is fair, from a
financial point of view, to the common stockholders of KeyCorp.
 
                                            Very truly yours,
 
                                        2
<PAGE>   202
 
                                                                    APPENDIX IV.
<PAGE>   203
 
                                                                     APPENDIX IV
 
CS FIRST BOSTON
 
  55 East 52nd Street
  New York, New York 10055-0186
  Telephone: 212/909-2000
 
December 29, 1993
 
Board of Directors of
  Society Corporation
127 Public Square
Cleveland, OH 44114-1306
 
Dear Sirs and Madam:
 
     You have asked us to advise you with respect to the fairness to the common
shareholders of Society Corporation (the "Company"), from a financial point of
view, of the exchange ratio (the "Exchange Ratio") of 1.205 of Common Shares of
the Company, $1 par value, for each share of Common Stock, $5 par value, of
KeyCorp ("KeyCorp"), pursuant to the Merger (the "Merger") of KeyCorp with and
into the Company as provided in the Supplemental Agreement to the Agreement and
Plan of Merger and the related Agreement and Plan of Merger, both dated as of
October 1, 1993, between KeyCorp and the Company.
 
     In arriving at our opinion, we have reviewed certain publicly available
business and financial information relating to the Company and KeyCorp. We have
reviewed certain other information, including financial forecasts, provided to
us by the Company and KeyCorp, and have met with the Company's management to
discuss the business and prospects of the Company. We have reviewed with Company
management the results of their discussions with KeyCorp management with respect
to the historical and current operating results and financial condition and the
prospects of KeyCorp. We have also discussed with KeyCorp's management the
historical and current operating results and financial condition of KeyCorp.
 
     We have also considered certain financial and stock market data of the
Company and KeyCorp, and we have compared the data with similar data for other
publicly held bank holding companies and we have considered the financial terms
of certain other business combinations in the commercial banking industry that
have recently been effected. We have analyzed the pro forma effect of the Merger
on the earnings per share, asset quality, consolidated capitalization, funding
mix and certain other balance sheet and profitability ratios of the Company. We
also considered such other information, financial studies, analyses and
investigations and financial, economic and market criteria which we deemed
relevant.
 
     In connection with our review, we have not independently verified any of
the foregoing information and have relied on its being complete and accurate in
all material respects. With respect to the financial forecasts, we have assumed
that they have been reasonably prepared on bases reflecting the best currently
available estimates and judgments of the Company's and KeyCorp's management as
to the future financial performance of the Company and KeyCorp. In addition, we
have not made an independent evaluation or appraisal of any of the assets of the
Company or KeyCorp nor have we examined any individual loan files or been
furnished with any such appraisals.
 
     We have acted as financial advisor to the Company in connection with the
Merger and will receive a fee for our services, a significant portion of which
is contingent upon the consummation of the Merger. We will also receive a fee
for rendering this opinion. We have in the past provided on various occasions
investment banking services to KeyCorp and have received fees for the rendering
of such services.
 
                                        1
<PAGE>   204
 
     In the ordinary course of our business, we have actively traded the debt
and equity securities of both the Company and Keycorp for our own account and
for the accounts of customers and, accordingly, may at any time hold a long or
short position in such securities.
 
     It is understood that this letter is for the information of the Board of
Directors only and is not to be quoted or referred to, in whole or in part, in
any registration statement, prospectus, or proxy statement, or in any other
document used in connection with the offering or sale of securities, nor shall
this letter be used for any other purposes, without CS First Boston
Corporation's prior written consent, provided, however, that we hereby consent
to the inclusion of this opinion in any registration statement or proxy
statement used in connection with the Merger so long as the opinion is included
in its entirety in such registration statement or proxy statement.
 
     Based upon and subject to the foregoing, it is our opinion that, as of the
date hereof, the Exchange Ratio is fair to the holders of common shares of the
Company from a financial point of view.
 
                                            Very truly yours,
 
                                            CS FIRST BOSTON CORPORATION
 
                                            By:
                                                Richard E. Thornburgh
                                                Managing Director
 
                                        2
<PAGE>   205
 
                                                                     APPENDIX V.
<PAGE>   206
 
                                                                      APPENDIX V
 
                         KEYCORP STOCK OPTION AGREEMENT
 
     STOCK OPTION AGREEMENT, dated as of October 2, 1993, between KeyCorp, a New
York corporation ("Issuer"), and Society Corporation, an Ohio corporation
("Grantee").
 
     WHEREAS, Grantee and Issuer have entered into a Supplemental Agreement to
Agreement and Plan of Merger (the "Supplemental Agreement") and a related
Agreement and Plan of Merger, both dated October 1, 1993 (together, the "Merger
Agreement"); and
 
     WHEREAS, as a condition to Grantee's entry into the Merger Agreement and in
consideration for such entry, Issuer has approved the grant to Grantee of the
Option (as hereinafter defined):
 
     NOW THEREFORE, in consideration of the foregoing and the mutual covenants
and agreements set forth herein and in the Merger Agreement, the parties hereto
agree as follows:
 
     1. (a) Issuer hereby grants to Grantee an unconditional, irrevocable option
(the "Option") to purchase, subject to the terms hereof, up to 20,229,509 fully
paid and nonassessable Common Shares, par value $5.00 per share (the "Common
Stock"), of Issuer at a price of $38.50 per share (such price, as adjusted if
applicable, the "Option Price"); provided, however, that in no event shall the
number of shares for which this Option is exercisable exceed 19.9% of the
Issuer's issued and outstanding shares of Common Stock. The number of shares of
Common Stock that may be received upon the exercise of the Option and the Option
Price are subject to adjustment as herein set forth.
 
     (b) In the event that any additional shares of Common Stock are issued or
otherwise become outstanding after the date of this Agreement (other than
pursuant to this Agreement), including, without limitation, pursuant to stock
option plans and in connection with acquisitions and other transactions
permitted by the Merger Agreement, the number of shares of Common Stock subject
to the Option shall be increased so that, after such issuance, it equals 19.9%
of the number of shares of the Common Stock then issued and outstanding without
giving effect to any shares subject or issued pursuant to the Option. Nothing
contained in this Section 1(b) or elsewhere in this Agreement shall be deemed to
authorize Issuer or Grantee to breach any provision of the Merger Agreement.
 
     2. (a) The Holder (as hereinafter defined) may exercise the Option, in
whole or part, if, but only if, both an Initial Triggering Event (as hereinafter
defined) and a Subsequent Triggering Event (as hereinafter defined) shall have
occurred prior to the occurrence of an Exercise Termination Event (as
hereinafter defined), provided that the Holder shall have sent the written
notice of such exercise (as provided in subsection (e) of this Section 2) within
90 days following such Subsequent Triggering Event. Each of the following shall
be an Exercise Termination Event: (i) the Effective Time of the Merger, (ii)
termination of the Merger Agreement in accordance with the provisions thereof if
such termination occurs prior to the occurrence of an Initial Triggering Event,
except a termination by Grantee pursuant to Section 10.1(b) of the Supplemental
Agreement (unless the breach by Issuer is non-volitional), or (iii) the passage
of twelve months after termination of the Merger Agreement if such termination
follows the occurrence of an Initial Triggering Event or a termination by
Grantee pursuant to Section 10.1(b) of the Supplemental Agreement (unless the
breach by Issuer is non-volitional) (provided that if an Initial Triggering
Event continues or occurs beyond such termination, the Exercise Termination
Event shall be twelve months from the expiration of the Last Triggering Event
but in no event more than 18 months after such termination). The "Last
Triggering Event" shall mean the last Initial Triggering Event to expire. The
term "Holder" shall mean the holder or holders of the Option.
 
     (b) The term "Initial Triggering Event" shall mean any of the following
events or transactions occurring after the date hereof:
 
          (i) Issuer or any Issuer Subsidiary, without having received Grantee's
     prior written consent, shall have entered into an agreement to engage in an
     Acquisition Transaction with any person (the term "person" for purposes of
     this Agreement having the meaning assigned thereto in Sections 3(a)(9) and
 
                                        1
<PAGE>   207
 
     13(d)(3) of the Securities Exchange Act of 1934, as amended (the "Exchange
     Act"), and the rules and regulations thereunder), other than Grantee or a
     Grantee Subsidiary, or the Board of Directors of Issuer shall have
     recommended that the shareholders of Issuer approve or accept any
     Acquisition Transaction other than as contemplated by the Merger Agreement.
     For purposes of this Agreement, "Acquisition Transaction" shall mean (A) a
     merger or consolidation, or any similar transaction, with Issuer or any
     significant subsidiary (as defined in Rule 1.02 of Regulation S-X of the
     Securities and Exchange Commission) (a "Significant Subsidiary") of Issuer,
     (B) a purchase, lease, or other acquisition of all or substantially all the
     assets of Issuer or any Significant Subsidiary of Issuer, (C) a purchase or
     other acquisition (including by way of merger, consolidation, share
     exchange, or otherwise) of securities representing 10% or more of the
     voting power of Issuer or any Significant Subsidiary of Issuer, or (D) any
     substantially similar transaction; or
 
          (ii) (A) Any person, other than Grantee, any Grantee Subsidiary, any
     Issuer Subsidiary in a fiduciary capacity in the ordinary course of such
     Issuer Subsidiary's business, any employee benefit plan or employee stock
     ownership plan of Issuer or any Issuer Subsidiary, or any person organized,
     appointed, or established by Issuer or any Issuer Subsidiary for or
     pursuant to the terms of any such plan, alone or together with such
     person's affiliates and associates (as the terms "affiliate" and
     "associate" are defined in Rule 12b-2 under the Exchange Act), shall have
     acquired beneficial ownership (as the term "beneficial ownership" is
     defined in Section 13(d) of the Exchange Act and the rules and regulations
     thereunder) or the right to acquire beneficial ownership of 10% or more of
     the then outstanding shares of Common Stock of Issuer, or (B) any group (as
     the term "group" is defined in Section 13(d)(3) of the Exchange Act), other
     than a group of which Grantee, any Grantee Subsidiary, any Issuer
     Subsidiary in a fiduciary capacity in the ordinary course of such Issuer
     Subsidiary's business, any employee benefit plan or employee stock
     ownership plan of Issuer or any Issuer Subsidiary, or any person organized,
     appointed, or established by Issuer or any Issuer Subsidiary for or
     pursuant to the terms of any such plan is a member, shall have been formed
     that beneficially owns 10% or more of the Common Stock then outstanding; or
 
          (iii) Any person, other than Grantee or any Grantee Subsidiary, shall
     have made a bona fide proposal to Issuer or its shareholders by public
     announcement or written communication that is or becomes the subject of
     public disclosure to engage in an Acquisition Transaction; or
 
          (iv) After a proposal is made by a third party to Issuer or its
     shareholders to engage in an Acquisition Transaction, Issuer shall have
     breached any covenant or obligation contained in the Merger Agreement and
     such breach would entitle Grantee to terminate the Merger Agreement under
     Section 10.1(b) of the Merger Agreement (without regard to the cure periods
     provided for therein unless such cure is promptly effected without
     jeopardizing consummation of the Merger pursuant to the terms of the Merger
     Agreement) and such breach shall not have been cured within 30 days; or
 
          (v) Any person (other than Grantee or any Grantee Subsidiary), other
     than in connection with a transaction to which Grantee has given its prior
     written consent, shall have filed an application or notice with the Board
     of Governors of the Federal Reserve System (the "Federal Reserve Board"),
     or other federal or state bank regulatory authority, which application or
     notice has been accepted for processing, for approval to engage in an
     Acquisition Transaction.
 
     (c) The term "Subsequent Triggering Event" shall mean either of the
following events or transactions occurring after the date hereof:
 
          (i) The acquisition by any person, alone or together with such
     person's affiliates and associates, or any group, subject to the same
     exceptions as those set forth in clause (ii) (A) or (B), respectively, of
     Section (b) of this Section 2, of beneficial ownership of 25% or more of
     the then outstanding Common Stock; or
 
          (ii) The occurrence of an Initial Triggering Event described in clause
     (i) of subsection (b) of this Section 2, except that the percentage
     reference in sub-clause (C) of clause (i) shall be 25%.
 
                                        2
<PAGE>   208
 
     (d) Issuer shall notify Grantee promptly in writing of the occurrence of
any Initial Triggering Event or Subsequent Triggering Event (together, a
"Triggering Event"), it being understood that the giving of such notice by
Issuer shall not be a condition to the right of the Holder to exercise the
Option.
 
     (e) In the event the Holder is entitled to and wishes to exercise the
Option, it shall send to Issuer a written notice (the date of which being herein
referred to as the "Notice Date") specifying (i) the total number of shares it
will purchase pursuant to such exercise, and (ii) a place and date not earlier
than three business days nor later than 60 business days from the Notice Date
for the closing of such purchase (the "Closing Date"); provided that if prior
notification to or approval of the Federal Reserve Board or any other regulatory
agency is required in connection with such purchase, the Holder shall promptly
file the required notice or application for approval and shall expeditiously
process the same and the period of time that otherwise would run pursuant to
this sentence shall run instead from the date on which any required notification
periods have expired or been terminated or such approvals have been obtained and
any requisite waiting period or periods shall have passed. Any exercise of the
Option shall be deemed to occur on the Notice Date relating thereto.
 
     (f) At the closing referred to in subsection (e) of this Section 2, the
Holder shall pay to Issuer the aggregate purchase price for the shares of the
Common Stock purchased pursuant to the exercise of the Option in immediately
available funds by a wire transfer to a bank account designated by Issuer,
provided that failure or refusal of Issuer to designate such a bank account
shall not preclude the Holder from exercising the Option.
 
     (g) At such closing, simultaneously with the delivery of immediately
available funds as provided in subsection (f) of this Section 2, Issuer shall
deliver to the Holder a certificate or certificates representing the number of
shares of Common Stock purchased by the Holder and, if the Option should be
exercised in part only, a new Option evidencing the rights of the Holder thereof
to purchase the balance of the shares purchasable hereunder, and the Holder
shall deliver to Issuer a copy of this Agreement and a letter agreeing that the
Holder will not offer to sell or otherwise dispose of such shares in violation
of applicable law or the provisions of this Agreement.
 
     (h) Certificates for Common Stock delivered at a closing hereunder may be
endorsed with a restrictive legend that shall read substantially as follows:
 
          "The transfer of the shares represented by this certificate is subject
     to certain provisions of an agreement between the registered holder hereof
     and Issuer and to resale restrictions arising under the Securities Act of
     1933, as amended, a copy of which agreement is on file at the principal
     office of Issuer. A copy of such agreement will be mailed to the holder
     hereof without charge within five days after receipt by Issuer of a written
     request."
 
     It is understood and agreed that: (i) the reference to the resale
restrictions of the Securities Act of 1933, as amended (the "Securities Act"),
in the above legend shall be removed by delivery of substitute certificate(s)
without such reference if the Holder shall have delivered to Issuer a copy of a
letter from the staff of the Securities and Exchange Commission, or an opinion
of counsel, in form and substance satisfactory to Issuer, to the effect that
such legend is not required for purposes of the Securities Act; (ii) the
reference to the provisions of this Agreement in the above legend shall be
removed by delivery of substitute certificate(s) without such reference if the
shares have been sold or transferred in compliance with the provisions of this
Agreement and under circumstances that do not require the retention of such
reference; and (iii) the legend shall be removed in its entirety if the
conditions in the preceding clauses (i) and (ii) are both satisfied. In
addition, such certificates shall bear any other legend as may be required by
law.
 
     (i) Upon the giving by the Holder to Issuer of the written notice of
exercise of the Option provided for under subsection (e) of this Section 2, the
tender of the applicable purchase price in immediately available funds and the
tender of a copy of this Agreement to Issuer, the Holder shall be deemed to be
the holder of record of the shares of Common Stock issuable upon such exercise,
notwithstanding that the stock transfer books of Issuer shall then be closed or
that certificates representing such shares of Common Stock shall not then be
actually delivered to the Holder. Issuer shall pay all expenses, and any and all
United States federal, state, and local taxes and other charges that may be
payable in connection with the preparation, issue, and
 
                                        3
<PAGE>   209
 
delivery of stock certificates under this Section 2 in the name of the Holder or
its assignee, transferee, or designee.
 
     3. Issuer agrees (i) that it shall at all times maintain, free from
preemptive rights, sufficient authorized but unissued or treasury shares of the
Common Stock so that the Option may be exercised without additional
authorization of Common Stock after giving effect to all other options,
warrants, convertible securities, and other rights to purchase Common Stock,
(ii) that it will not, by charter amendment or through reorganization,
consolidation, merger, dissolution, or sale of assets, or by any other voluntary
act, avoid or seek to avoid the observance or performance of any of the
covenants, stipulations, or conditions to be observed or performed hereunder by
Issuer, (iii) promptly to take all action as may from time to time be required
(including (A) complying with all premerger notification, reporting, and waiting
period requirements specified in 15 U.S.C. Section 18a and regulations
promulgated thereunder and (B) in the event, under the Bank Holding Company Act
of 1956, as amended, or the Change in Bank Control Act of 1978, as amended, or a
state banking law, prior approval of or notice to the Federal Reserve Board or
to any state regulatory authority is necessary before the Option may be
exercised, cooperating fully with the Holder in preparing such applications or
notices and providing such information to the Federal Reserve Board or such
state regulatory authority as they may require) in order to permit the Holder to
exercise the Option and Issuer duly and effectively to issue shares of the
Common Stock pursuant hereto, and (iv) promptly to take all action provided
herein to protect the rights of the Holder against dilution.
 
     4. This Agreement (and the Option granted hereby) are exchangeable, without
expense, at the option of the Holder, upon presentation and surrender of this
Agreement at the principal office of Issuer, for other Agreements providing for
Options of different denominations entitling the holder thereof to purchase in
the aggregate the same number of shares of the Common Stock purchasable
hereunder. The terms "Agreement" and "Option" as used herein include any Stock
Option Agreements and related Options for which this Agreement (and the Option
granted hereby) may be exchanged. Upon receipt by Issuer of evidence reasonably
satisfactory to it of the loss, theft, destruction, or mutilation of this
Agreement, and (in the case of loss, theft, or destruction) of reasonably
satisfactory indemnification, and upon surrender and cancellation of this
Agreement, if mutilated, Issuer will execute and deliver a new Agreement of like
tenor and date. Any such new Agreement executed and delivered shall constitute
an additional contractual obligation on the part of Issuer, whether or not the
Agreement so lost, stolen, destroyed, or mutilated shall at any time be
enforceable by anyone.
 
     5. In addition to the adjustment in the number of shares of Common Stock
that are purchasable upon exercise of the Option pursuant to Section 1 of this
Agreement, the number of shares of Common Stock purchasable upon the exercise
hereof and the Option Price shall be subject to adjustment from time to time as
provided in this Section 5:
 
          (a)(i) In the event of any change in Common Stock by reason of stock
     dividends, split-ups, mergers, recapitalizations, combinations,
     subdivisions, conversions, exchanges of shares, or the like, the type and
     number of shares of Common Stock purchasable upon exercise hereof and the
     Option Price shall be appropriately adjusted, and proper provision shall be
     made in the agreements governing any such transaction so that Grantee shall
     receive upon exercise of the Option the number and class of shares, other
     securities, property, or cash that Grantee would have received in respect
     of the Common Stock subject to the Option if the Option had been exercised
     and the Common Stock subject to the Option had been issued to Grantee
     immediately prior to such event or the record date therefor, as applicable;
     and
 
          (ii) Issuer may make such increases in the number of shares of Common
     Stock purchasable upon exercise hereof, in addition to those required under
     subsection (a)(i), as shall be determined by its Board of Directors to be
     advisable in order to avoid taxation so far as practicable of any dividend
     of stock or stock rights or any event treated as such for Federal income
     tax purposes to the recipients; and
 
     (b) Whenever the number of shares of Common Stock purchasable upon exercise
hereof is adjusted as provided in this Section 5, the Option Price shall be
adjusted by multiplying the Option Price by a fraction, the numerator of which
is equal to the number of shares of Common Stock purchasable prior to the
adjustment
 
                                        4
<PAGE>   210
 
and the denominator of which is equal to the number of shares of the Common
Stock purchasable after the adjustment.
 
     6. Upon the occurrence of a Subsequent Triggering Event that occurs prior
to an Exercise Termination Event, Issuer shall, at the request of Grantee
delivered within 90 days of such Subsequent Triggering Event (whether on its own
behalf or on the behalf of any subsequent holder of this Option (or part
thereof) or any of the shares of Common Stock issued pursuant hereto), promptly
prepare, file, and keep current a shelf registration statement under the
Securities Act covering this Option and any shares issued and issuable pursuant
to this Option and shall use its best efforts to cause such registration
statement to become effective and remain current in order to permit the sale or
other disposition of this Option and any shares of Common Stock issued upon
total or partial exercise of this Option ("Option Shares") in accordance with
any plan of disposition requested by Grantee and by any underwriter or
underwriters selected by Grantee. Issuer will use its best efforts to cause such
registration statement first to become effective and then to remain effective
for such period not in excess of 180 days from the day such registration
statement first becomes effective or such shorter time as may be reasonably
necessary to effect such sales or other dispositions. Grantee shall have the
right to demand a second such registration by making a request to Issuer
therefor within two years of the date of its request made in accordance with the
first sentence of this Section 6. The obligations of Issuer hereunder to file a
registration statement and to maintain its effectiveness may be suspended for
one or more periods of time that do not exceed 60 days in the aggregate if the
Board of Directors of Issuer shall have determined that the filing of such
registration statement or the maintenance of its effectiveness would require
disclosure of nonpublic information that would materially and adversely affect
Issuer. The foregoing notwithstanding, if, at the time of any request by Grantee
for registration of the Option or Option Shares as provided above, Issuer is in
registration with respect to an underwritten public offering of shares of Common
Stock, and if, in the good faith judgment of the managing underwriter or
managing underwriters, or, if none, the sole underwriter or underwriters, of
such offering, the inclusion of the Holder's Option or Option Shares would
interfere with the successful marketing of the shares of Common Stock offered by
Issuer, the number of shares represented by the Option and/or the number of
Option Shares which in either case are to be covered in the registration
statement contemplated hereby may be reduced; provided, however, that after any
such required reduction the number of Option Shares to be included in such
offering for the account of the Holder shall constitute at least 25% of the
total number of shares to be sold by the Holder and Issuer in such offering in
the aggregate; provided further, however, that if such reduction occurs, then
the Issuer shall file a registration statement for the balance as promptly as
practical and no reduction shall thereafter occur. Whenever the provisions of
this Section 6 apply, the provisions of Appendix A attached hereto shall be
applicable.
 
     7. (a) Upon the occurrence of a Subsequent Triggering Event that occurs
prior to an Exercise Termination Event, (i) at the request of the Holder,
delivered within 90 days of such occurrence (or such later period as provided in
Section 10), Issuer shall repurchase the Option from the Holder at a price (the
"Option Repurchase Price") equal to the amount by which (A) the sum of the
market/offer price (as defined below) and Grantee's reasonable out-of-pocket
expenses incurred in connection with the transactions contemplated by the Merger
Agreement, including, without limitation, legal, accounting, and investment
banking fees, exceeds (B) the Option Price, multiplied by the number of shares
for which this Option may then be exercised and (ii) at the request of the owner
of Option Shares from time to time (the "Owner"), delivered within 90 days of
such occurrence (or such later period as provided in Section 10), Issuer shall
repurchase such number of the Option Shares from the Owner as the Owner shall
designate at a price per share (the "Option Share Repurchase Price") equal to
the sum of the market/offer price plus Grantee's reasonable out-of-pocket
expenses incurred in connection with the transactions contemplated by the Merger
Agreement, including, without limitation, legal, accounting, and investment
banking fees. The term "market/offer price" shall mean the highest of (x) the
price per share of the Common Stock at which a tender offer or exchange offer
therefor has been made, (y) the price per share of the Common Stock to be paid
by any third party pursuant to an agreement with Issuer, and (z) the highest
closing price for shares of the Common Stock within the six-month period
immediately preceding the date the Holder gives notice of the required
repurchase of this Option or the Owner gives notice of the required repurchase
of Option Shares, as the case may be. In the event that an exchange offer is
made for the Common Stock or an agreement is entered into for a merger or
consolidation involving consideration other than cash, the value of the
securities or other property
 
                                        5
<PAGE>   211
 
issuable or deliverable in exchange for the Common Stock shall be determined by
a nationally recognized investment banking firm selected by the Holder or Owner,
as the case may be, and Issuer. Notwithstanding the foregoing, if the same
person who has participated in a Triggering Event has entered, or after such
Triggering Event has occurred enters, into any agreement or understanding with
Grantee relating to Grantee's rights under this Option or with respect to the
Option Shares or directly or indirectly relating to Issuer, Grantee shall,
notwithstanding the terms of such agreement or understanding, at any time upon
the occurrence of a Subsequent Triggering Event of the type set forth in Section
2(c)(i) without Issuer's approval, recommendation, or consent, promptly request
that Issuer repurchase the Option and any Option Shares held by Grantee as
provided in this Section 7 and Issuer shall do so.
 
     (b) The Holder and the Owner, as the case may be, may exercise its right to
require Issuer to repurchase the Option and any Option Shares pursuant to this
Section 7 by surrendering for such purpose to Issuer, at its principal office, a
copy of this Agreement or certificates for Option Shares, as applicable,
accompanied by a written notice or notices stating that the Holder or the Owner,
as the case may be, elects to require Issuer to repurchase this Option and/or
the Option Shares in accordance with the provisions of this Section 7. As
promptly as practicable, and in any event within five business days after the
surrender of the Option and/or certificates representing Option Shares and the
receipt of such notice or notices relating thereto, Issuer shall deliver or
cause to be delivered to the Holder the Option Repurchase Price and/or to the
Owner the Option Share Repurchase Price therefor or the portion thereof that
Issuer is not then prohibited under applicable law and regulation from so
delivering.
 
     (c) To the extent that Issuer is prohibited under applicable law or
regulation, or as a consequence of administrative policy, from repurchasing the
Option and/or the Option Shares in full, Issuer shall immediately so notify the
Holder and/or the Owner and thereafter deliver or cause to be delivered, from
time to time, to the Holder and/or the Owner, as appropriate, the portion of the
Option Repurchase Price and the Option Share Repurchase Price, respectively,
that it is no longer prohibited from delivering, within five business days after
the date on which Issuer is no longer so prohibited; provided, however, that if
Issuer at any time after delivery of a notice of repurchase pursuant to
paragraph (b) of this Section 7 is prohibited under applicable law or
regulation, or as a consequence of administrative policy, from delivering to the
Holder and/or the Owner, as appropriate, the Option Repurchase Price and the
Option Share Repurchase Price, respectively, in full (and Issuer hereby
undertakes to use its best efforts to receive all required regulatory and legal
approvals and to file any required notices as promptly as practicable in order
to accomplish such repurchase), the Holder or Owner may revoke its notice of
repurchase of the Option or the Option Shares, whereupon Issuer shall promptly
(i) deliver to the Holder a new Stock Option Agreement evidencing the right of
the Holder to purchase that number of shares of the Common Stock obtained by
multiplying the number of shares of the Common Stock for which the surrendered
Stock Option Agreement was exercisable at the time of delivery of the notice of
repurchase by a fraction, the numerator of which is the Option Repurchase Price
less the portion thereof theretofore delivered to the Holder and the denominator
of which is the Option Repurchase Price, and (ii) deliver to the Owner a
certificate for the Option Shares it is then so prohibited from repurchasing,
and Issuer shall have no further obligation to purchase such Option or Option
Shares.
 
     8. (a) In the event that prior to an Exercise Termination Event, Issuer
shall enter into an agreement (1) to consolidate with or merge into any person,
other than Grantee or one of its Subsidiaries, and shall not be the continuing
or surviving corporation of such consolidation or merger, (2) to permit any
person, other than Grantee or one of its Subsidiaries, to merge into Issuer and
Issuer shall be the continuing or surviving corporation, but, in connection with
such merger, the then outstanding shares of Common Stock shall be changed into
or exchanged for stock or other securities of any other person or cash or any
other property or the then outstanding shares of Common Stock shall after such
merger represent less than 50% of the outstanding voting shares and voting share
equivalents of the merged company, or (3) to sell or otherwise transfer all or
substantially all of its assets to any person, other than Grantee or one of its
Subsidiaries, then, and in each such case, the agreement governing such
transaction shall make proper provision so that the Option shall, upon the
consummation of any such transaction and upon the terms and conditions set forth
herein, be converted into, or exchanged for, an option (the "Substitute
Option"), at the election of the Holder, of either (i) the Acquiring Corporation
(as hereinafter defined), (ii) any person that controls the Acquiring
Corporation, or (iii) in the case of a merger described in clause (a)(2),
Issuer.
 
                                        6
<PAGE>   212
 
     (b) The following terms have the meanings indicated:
 
          (1) "Acquiring Corporation" shall mean (i) the continuing or surviving
     corporation of a consolidation or merger with Issuer (if other than
     Issuer), (ii) Issuer in a merger in which Issuer is the continuing or
     surviving person, or (iii) the transferee of all or substantially all of
     Issuer's assets.
 
          (2) "Substitute Common Stock" shall mean the common stock issued by
     the issuer of the Substitute Option upon exercise of the Substitute Option.
 
          (3) "Assigned Value" shall mean the market/offer price, as defined in
     Section 7; provided, however, that in the event of a sale of all or
     substantially all of Issuer's assets, the Assigned Value shall be the sum
     of the price paid in such sale for such assets and the current market value
     of the remaining assets of Issuer as determined by a nationally recognized
     investment banking firm selected by the Holder (or by a majority in
     interest of the Holders if there shall be more than one Holder), divided by
     the number of shares of the Common Stock of Issuer outstanding at the time
     of such sale.
 
          (4) "Average Price" shall mean the average closing price of a share of
     the Substitute Common Stock for the one year immediately preceding the
     consolidation, merger, or sale in question, but in no event higher than the
     closing price of the shares of the Substitute Common Stock on the day
     preceding such consolidation, merger, or sale; provided that, if Issuer is
     the issuer of the Substitute Option, the Average Price shall be computed
     with respect to a share of common stock issued by the person merging into
     Issuer or by any company which controls such person, as the Holder may
     elect.
 
     (c) The Substitute Option shall have the same terms as the Option, provided
that, if the terms of the Substitute Option cannot, for legal reasons, be the
same as the Option, such terms shall be as similar as possible and in no event
less advantageous to the Holder. The issuer of the Substitute Option shall also
enter into an agreement with the then Holder or Holders of the Substitute Option
in substantially the same form as this Agreement, which shall be applicable to
the Substitute Option.
 
     (d) The Substitute Option shall be exercisable for such number of shares of
the Substitute Common Stock as is equal to the Assigned Value multiplied by the
number of shares of the Common Stock for which the Option is then exercisable,
divided by the Average Price. The exercise price of the Substitute Option per
share of the Substitute Common Stock shall then be equal to the Option Price
multiplied by a fraction in which the numerator is the number of shares of the
Common Stock for which the Option is then exercisable and the denominator is the
number of shares of the Substitute Common Stock for which the Substitute Option
is exercisable.
 
     (e) In no event, pursuant to any of the foregoing paragraphs, shall the
Substitute Option be exercisable for more than 19.9% of the aggregate of the
shares of the Substitute Common Stock outstanding prior to exercise of the
Substitute Option. In the event that the Substitute Option would be exercisable
for more than 19.9% of the aggregate of the shares of Substitute Common Stock
but for the limitation in the first sentence of this clause (e), the Substitute
Option Issuer shall make a cash payment to Grantee equal to the excess of (i)
the value of the Substitute Option without giving effect to the limitation in
the first sentence of this clause (e) over (ii) the value of the Substitute
Option after giving effect to the limitation in the first sentence of this
clause (e). This difference in value shall be determined by a
nationally-recognized investment banking firm selected by Grantee.
 
     (f) Issuer shall not enter into any transaction described in subsection (a)
of this Section 8 unless the Acquiring Corporation and any person that controls
the Acquiring Corporation assume in writing all the obligations of Issuer
hereunder.
 
     9. (a) At the request of the holder of the Substitute Option (the
"Substitute Option Holder"), the issuer of the Substitute Option (the
"Substitute Option Issuer") shall repurchase the Substitute Option from the
Substitute Option Holder at a price (the "Substitute Option Repurchase Price")
equal to the amount by which (i) the sum of the Highest Closing Price (as
hereinafter defined) and Grantee's reasonable out-of-pocket expenses incurred in
connection with the transactions contemplated by the Merger Agreement,
including, without limitation, legal, accounting, and investment banking fees,
exceeds (ii) the exercise price of the Substitute Option, multiplied by the
number of shares of the Substitute Common Stock for which the
 
                                        7
<PAGE>   213
 
Substitute Option may then be exercised, and at the request of the owner (the
"Substitute Share Owner") of shares of the Substitute Common Stock (the
"Substitute Shares"), the Substitute Option Issuer shall repurchase the
Substitute Shares at a price per share (the "Substitute Share Repurchase Price")
equal to the sum of the Highest Closing Price and Grantee's reasonable
out-of-pocket expenses incurred in connection with the transactions contemplated
by the Merger Agreement, including, without limitation, legal, accounting, and
investment banking fees. The term "Highest Closing Price" shall mean the highest
closing price for shares of the Substitute Common Stock within the six-month
period immediately preceding the date the Substitute Option Holder gives notice
of the required repurchase of the Substitute Option or the Substitute Share
Owner gives notice of the required repurchase of the Substitute Shares, as
applicable.
 
     (b) The Substitute Option Holder and the Substitute Share Owner, as the
case may be, may exercise its respective right to require the Substitute Option
Issuer to repurchase the Substitute Option and the Substitute Shares pursuant to
this Section 9 by surrendering for such purpose to the Substitute Option Issuer,
at its principal office, the agreement for such Substitute Option (or, in the
absence of such an agreement, a copy of this Agreement) and certificates for
Substitute Shares accompanied by a written notice or notices stating that the
Substitute Option Holder or the Substitute Share Owner, as the case may be,
elects to require the Substitute Option Issuer to repurchase the Substitute
Option and/or the Substitute Shares in accordance with the provisions of this
Section 9. As promptly as practicable, and in any event within five business
days after the surrender of the Substitute Option and/or certificates
representing Substitute Shares and the receipt of such notice or notices
relating thereto, the Substitute Option Issuer shall deliver or cause to be
delivered to the Substitute Option Holder the Substitute Option Repurchase Price
and/or to the Substitute Share Owner the Substitute Share Repurchase Price
therefor or the portion thereof which the Substitute Option Issuer is not then
prohibited under applicable law and regulation from so delivering.
 
     (c) To the extent that the Substitute Option Issuer is prohibited under
applicable law or regulation, or as a consequence of administrative policy, from
repurchasing the Substitute Option and/or the Substitute Shares in full, the
Substitute Option Issuer shall immediately so notify the Substitute Option
Holder and/or the Substitute Share Owner and thereafter deliver or cause to be
delivered, from time to time, to the Substitute Option Holder and/or the
Substitute Share Owner, as appropriate, the portion of the Substitute Share
Repurchase Price, respectively, which it is no longer prohibited from
delivering, within five business days after the date on which the Substitute
Option Issuer is no longer so prohibited; provided, however, that if the
Substitute Option Issuer is at any time after delivery of a notice of repurchase
pursuant to subsection (b) of this Section 9 prohibited under applicable law or
regulation, or as a consequence of administrative policy, from delivering to the
Substitute Option Holder and/or the Substitute Share Owner, as appropriate, the
Substitute Option Repurchase Price and the Substitute Share Repurchase Price,
respectively, in full (and the Substitute Option Issuer shall use its best
efforts to receive all required regulatory and legal approvals as promptly as
practicable in order to accomplish such repurchase), the Substitute Option
Holder or Substitute Share Owner may revoke its notice of repurchase of the
Substitute Option or the Substitute Shares, whereupon the Substitute Option
Issuer shall promptly (i) deliver to the Substitute Option Holder a new
Substitute Option evidencing the right of the Substitute Option Holder to
purchase that number of shares of the Substitute Common Stock obtained by
multiplying the number of shares of the Substitute Common Stock for which the
surrendered Substitute Option was exercisable at the time of delivery of the
notice of repurchase by a fraction, the numerator of which is the Substitute
Option Repurchase Price less the portion thereof theretofore delivered to the
Substitute Option Holder and the denominator of which is the Substitute Option
Repurchase Price, and (ii) deliver to the Substitute Share Owner a certificate
for the Substitute Option Shares it is then so prohibited from repurchasing, and
the Substitute Option Issuer shall have no further obligation to purchase such
Substitute Option or Substitute Shares.
 
     10. The 90-day periods for exercise of certain rights under Sections 2, 6,
7, and 13 shall be extended in each such case (i) to the extent necessary to
obtain all regulatory approvals for the exercise of such rights and for the
expiration of all statutory waiting periods and (ii) to the extent necessary to
avoid liability under Section 16(b) of the Exchange Act by reason of such
exercise.
 
                                        8
<PAGE>   214
 
     11. Issuer hereby represents and warrants to Grantee as follows:
 
     (a) Issuer has full corporate power and authority to execute and deliver
this Agreement and to consummate the transactions contemplated hereby. The
execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly and validly authorized by the
Board of Directors of Issuer and no other corporate proceedings on the part of
Issuer are necessary to authorize this Agreement or to consummate the
transactions so contemplated. This Agreement has been duly and validly executed
and delivered by Issuer and constitutes a valid and binding obligation of
Issuer, enforceable against Issuer in accordance with its terms.
 
     (b) To the best knowledge of Issuer, as of the date of this Agreement, no
person owns beneficially more than 10 percent of the outstanding shares of its
Common Stock.
 
     (c) Issuer has taken all necessary corporate action to authorize and
reserve and permit it to issue, and at all times from the date hereof through
the termination of this Agreement in accordance with its terms will have
reserved for issuance upon the exercise of the option, that number of shares of
Common Stock equal to the maximum number of shares of Common Stock at any time
and from time to time issuable hereunder, and all such shares, upon issuance
pursuant hereto, will be duly authorized, validly issued, fully paid,
nonassessable, and will be delivered free and clear of all claims, liens,
encumbrances, and security interests and not subject to any preemptive rights.
 
     (d) The Shareholder Protection Rights Plan, dated as of October 1, 1993,
between Issuer and Key Trust Company, as Rights Agent (the "Rights Agreement"),
provides that Grantee will not become an "Acquiring Person" and that no "Flip-in
Date," "Flip-over Transaction or Event," "Separation Time," or "Stock
Acquisition Date" (as such terms are defined in the Rights Agreement) will occur
as a result of the approval, execution, or delivery of this Agreement or the
Merger Agreement or the consummation of the transactions contemplated hereby and
thereby, including the purchase of Common Stock by Grantee pursuant to this
Agreement, and that "Rights" (as defined in the Rights Agreement) shall be
issued under the Rights Agreement in respect of any Common Stock of Issuer that
is issued pursuant to this Agreement after the "Record Time" but prior to the
"Expiration Time" (as such terms are defined in the Rights Agreement).
 
     (e) Except as disclosed pursuant to the Merger Agreement, the execution and
delivery of this Agreement does not, and the consummation of the transactions
contemplated hereby will not, conflict with, or result in a violation of or
default under, (i) any provision of the Restated Certificate of Incorporation,
as amended, or Bylaws of Issuer or similar documents of any Issuer Subsidiary or
(ii) subject to obtaining the approvals, if any, contemplated or required by
Section 7(c) or 9(c) of this Agreement, any loan or credit agreement, note,
mortgage, indenture, lease, or other agreement, obligation, instrument, permit,
concession, franchise, license, judgment, order, decree, statute, law,
ordinance, rule, or regulation applicable to Issuer or any Issuer Subsidiary or
their respective properties or assets, which conflict, violation, or default
could have a material adverse effect on Issuer.
 
     12. Grantee hereby represents and warrants to Issuer that:
 
          (a) Grantee has full corporate power and authority to enter into this
     Agreement and, subject to obtaining the approvals referred to in this
     Agreement, to consummate the transactions contemplated by this Agreement.
     The execution and delivery of this Agreement and the consummation of the
     transactions contemplated hereby have been duly authorized by all necessary
     corporate action on the part of Grantee. This Agreement has been duly
     executed and delivered by Grantee and constitutes a valid and binding
     obligation of Grantee, enforceable against Grantee in accordance with its
     terms.
 
          (b) The execution and delivery of this Agreement does not, and the
     consummation of the transactions contemplated hereby will not, conflict
     with, or result in a violation of or default under, (i) any provision of
     the Articles of Incorporation or Regulations of Grantee or any Grantee
     Subsidiary or (ii) subject to obtaining the approvals referred to in this
     Agreement, any loan or credit agreement, note, mortgage, indenture, lease,
     or other agreement, obligation, instrument, permit, concession, franchise,
     license, judgment, order, decree, statute, law, ordinance, rule, or
     regulation applicable to Grantee or any
 
                                        9
<PAGE>   215
 
     subsidiary of Grantee or their respective properties or assets, which
     conflict, violation, or default would have a material adverse effect on
     Grantee.
 
          (c) Any Option Shares or other securities acquired by Grantee upon
     exercise of the Option will not be transferred or otherwise disposed of
     except in a transaction registered or exempt from registration under the
     Securities Act.
 
     13. Neither of the parties hereto may assign any of its rights or
obligations under this Option Agreement or the Option created hereunder to any
other person without the express written consent of the other party, except that
in the event a Subsequent Triggering Event shall have occurred prior to an
Exercise Termination Event, Grantee, subject to the express provisions hereof
(including, without limitation, Section 7(a)), may assign in whole or in part
its rights and obligations hereunder within 90 days following such Subsequent
Triggering Event (or such later period as provided in Section 10); provided,
however, that until the date 30 days following the date on which the Federal
Reserve Board approves an application by Grantee under the Bank Holding Company
Act to acquire the Common Stock subject to the Option, Grantee may not assign
its rights under the Option except in (i) a widely dispersed public
distribution, (ii) a private placement in which no one party acquires the right
to purchase in excess of 2% of the voting shares of Issuer, (iii) an assignment
to a single party (e.g., a broker or investment banker) for the purpose of
conducting a widely dispersed public distribution on Grantee's behalf, or (iv)
any other manner approved by the Federal Reserve Board.
 
     14. Each of Grantee and Issuer will use its best efforts to make all
filings with, and to obtain consents of, all third parties and governmental
authorities necessary to the consummation of the transactions contemplated by
this Agreement, including without limitation making application to list the
shares of the Common Stock issuable hereunder on the New York Stock Exchange
upon official notice of issuance and applying to the Federal Reserve Board under
the Bank Holding Company Act for approval to acquire the shares issuable
hereunder, but Grantee shall not be obligated to apply to state banking
authorities for approval to acquire the shares of Common Stock issuable
hereunder until such time, if ever, as it deems appropriate to do so.
 
     15. The parties hereto acknowledge that damages would be an inadequate
remedy for a breach of this Agreement by either party hereto and that the
obligations of the parties hereto shall be enforceable by either party hereto
through injunctive or other equitable relief.
 
     16. If any term, provision, covenant, or restriction contained in this
Agreement is held by a court or a federal or state regulatory agency of
competent jurisdiction to be invalid, void, or unenforceable, the remainder of
the terms, provisions, covenants, and restrictions contained in this Agreement
shall remain in full force and effect, and shall in no way be affected,
impaired, or invalidated. If for any reason such court or regulatory agency
determines that the Holder is not permitted to acquire, or Issuer is not
permitted to repurchase pursuant to Section 7, the full number of shares of the
Common Stock provided in Section 1(a) hereof (as adjusted pursuant to Section
1(b) or 5 hereof), it is the express intention of Issuer to allow the Holder to
acquire or to require Issuer to repurchase such lesser number of shares as may
be permissible, without any amendment or modification hereof.
 
     17. All notices, requests, claims, demands, and other communications
hereunder shall be deemed to have been duly given when delivered in person, by
cable, telegram, telecopy, or telex, or by registered or certified mail (postage
prepaid, return receipt requested) at the respective addresses of the parties
set forth in the Merger Agreement.
 
     18. This Agreement shall be governed by and construed in accordance with
the laws of the State of Ohio, regardless of the laws that might otherwise
govern under applicable principles of conflicts of laws thereof.
 
     19. This Agreement may be executed in two or more counterparts, each of
which shall be deemed to be an original, but all of which shall constitute one
and the same agreement.
 
     20. Except as otherwise expressly provided herein, each of the parties
hereto shall bear and pay all costs and expenses incurred by it or on its behalf
in connection with the transactions contemplated hereunder, including fees and
expenses of its own financial consultants, investment bankers, accountants, and
counsel.
 
                                       10
<PAGE>   216
 
     21. Except as otherwise expressly provided herein, this Agreement contains
the entire agreement between the parties with respect to the transactions
contemplated hereunder and supersedes all prior arrangements or understandings
with respect thereof, written or oral. The terms and conditions of this
Agreement shall inure to the benefit of and be binding upon the parties hereto
and their respective successors and permitted assigns. Nothing in this
Agreement, expressed or implied, is intended to confer upon any party, other
than the parties hereto, and their respective successors and permitted assigns,
any rights, remedies, obligations, or liabilities under or by reason of this
Agreement, except as expressly provided herein.
 
     22. Capitalized terms used in this Agreement and not defined herein shall
have the meanings assigned thereto in the Merger Agreement, provided that
references to "Subsidiaries" of "Issuer" and "Grantee" shall be deemed to refer
to Subsidiaries of KeyCorp and Society Corporation, respectively.
 
     IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
executed on its behalf by its officers thereunto duly authorized, all as of the
day and year first above written.
 
                                            KEYCORP
 
                                            By:/s/ VICTOR J. RILEY, JR.
                                               Its: Chairman of the Board
 
                                            And:/s/ ROBERT W. BOUCHARD
                                                Its: Secretary
 
                                            SOCIETY CORPORATION
 
                                            By: /s/ ROBERT W. GILLESPIE
                                                Its: Chairman of the Board
 
                                            And:/s/ LAWRENCE J. CARLINI
                                                Its: Secretary
 
                                       11
<PAGE>   217
 
                                   APPENDIX A
 
                              REGISTRATION RIGHTS
 
     1. If and whenever Issuer is required by the provisions of Section 6 of the
Agreement to which this Appendix A is a part to effect the registration of
securities under the Securities Act of 1933 ("Securities Act"), Issuer will
 
          (a) prepare and file with the SEC such amendments to such registration
     statement and supplements to the prospectus contained therein as may be
     necessary to keep such registration statement current;
 
          (b) furnish to Grantee and to the underwriters of the Securities being
     registered such reasonable number of copies of the registration statement,
     preliminary prospectus, final prospectus, and such other documents as
     Grantee or such underwriters may reasonably request in order to facilitate
     the public offering of such securities;
 
          (c) use its best efforts to register or qualify the securities covered
     by such registration statement under such state securities or blue sky laws
     of such jurisdictions as Grantee or such underwriters may reasonably
     request; provided that Issuer shall not be required by virtue hereof to
     submit to jurisdiction in any state;
 
          (d) notify Grantee promptly after Issuer shall receive notice thereof,
     of the time when such registration statement has become effective or a
     supplement or amendment to any prospectus forming a part of such
     registration statement has been filed or become effective;
 
          (e) notify Grantee promptly of any request by the SEC for the amending
     or supplementing of such registration statement or prospectus or for
     additional information;
 
          (f) prepare and file with the SEC, promptly upon the request of
     Grantee, any amendments or supplements to such registration statement or
     prospectus which, in the opinion of counsel for Grantee and Issuer, are
     required under the Securities Act or the rules and regulations thereunder
     in connection with the distribution of the securities by Grantee;
 
          (g) prepare and promptly file with the SEC such amendments or
     supplements to such registration statement or prospectus as may be
     necessary to correct any statements or omissions if at the time when a
     prospectus relating to such securities is required to be delivered under
     the Securities Act, any event shall have occurred as the result of which
     such prospectus as then in effect would include an untrue statement of a
     material fact or omit to state any material fact necessary to make the
     statements therein, in the light of the circumstances in which they were
     not made, not misleading;
 
          (h) advise Grantee, promptly after it shall receive notice or obtain
     knowledge, of the issuance of any stop order or to obtain its withdrawal if
     such stop order should be issued; and
 
          (i) at the request of Grantee, furnish on the date or dates provided
     for in the underwriting agreement: (i) an opinion or opinions of the
     counsel representing Issuer for the purposes of such registration,
     addressed to the underwriters and to Grantee, covering such matters as such
     underwriters and Grantee may reasonably request and are customarily covered
     by Issuer's counsel at that time; and (ii) a letter or letters from the
     independent certified public accountants of Issuer, addressed to the
     underwriters and to Grantee, covering such matters as such underwriters or
     Grantee may reasonably request, in which letters such accountants shall
     state (without limiting the generality of the foregoing) that they are
     independent certified public accountants within the meaning of the
     Securities Act and that, in the opinion of such accountants, the financial
     statements and other financial data of Issuer included or incorporated by
     reference in the registration statement or any amendment or supplement
     thereto comply in all material respects with applicable accounting
     requirements of the Securities Act.
 
     2. With respect to the first registration requested pursuant to Section 6
of the Agreement, Issuer shall bear the following fees, costs, and expenses: All
registration, filing, and NASD fees, printing and engraving expenses, fees and
disbursements of counsel and accountants for Issuer, and all legal fees and
disbursements
 
                                        1
<PAGE>   218
 
and other expenses of Issuer to comply with state securities or blue sky laws of
up to 15 jurisdictions in which the securities to be offered are to be
registered or qualified (with Grantee bearing such fees, disbursements, and
expenses with respect to additional jurisdictions). Grantee shall bear such
costs, fees, and expenses with respect to the second registration requested
pursuant to Section 6 of the Agreement. With respect to both registrations
requested pursuant to Section 6 of the Agreement, fees and disbursements of
counsel and accountants for Grantee, underwriting discounts and commissions, and
transfer taxes for Grantee and any other expenses incurred by Grantee shall be
borne by Grantee.
 
     3. (a) Issuer will indemnify and hold harmless Grantee, any underwriter (as
defined in the Securities Act) for Grantee, and each person, if any, who
controls Grantee or such underwriter (within the meaning of the Securities Act)
from and against any and all losses, damages, liabilities, costs, and expenses
to which Grantee or any such underwriter or controlling person may become
subject under the Securities Act or otherwise, including, without limitation,
any such losses, damages, liabilities, costs, or expenses arising out of or
caused by any untrue statement or alleged untrue statement of any material fact
contained in such registration statement, any prospectus or preliminary
prospectus contained therein, or any amendment or supplement thereto, or arising
out of or based upon the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances in which they were made not misleading;
provided, however, that Issuer will not be liable in any such case to the extent
that any such losses, damages, liabilities, costs, or expenses arise out of or
are based upon an untrue statement or alleged untrue statement or omission or
alleged omission so made in conformity with information furnished by Grantee,
such underwriter, or such controlling person in writing specifically for use in
the preparation thereof.
 
     (b) Grantee will indemnify and hold harmless Issuer, any underwriter (as
defined in the Securities Act), and each person, if any, who controls Issuer or
such underwriter (within the meaning of the Securities Act) from and against any
and all losses, damages, liabilities, costs, or expenses to which Issuer or any
such underwriter or controlling person may become subject under the Securities
Act or otherwise, insofar as such losses, damages, liabilities, costs, or
expenses arise out of or are caused by any untrue or alleged untrue statement of
any material fact contained in such registration statement, any prospectus or
preliminary prospectus contained therein or any amendment or supplement thereto,
or arise out of or are based upon the omission or the alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances in which they were made, not
misleading, in each case to the extent, but only to the extent, that such untrue
statement or alleged untrue statement or omission or alleged omission was so
made in reliance upon and in conformity with written information furnished by
Grantee specifically for use in the preparation thereof.
 
     (c) Promptly after receipt by an indemnified party pursuant to the
provisions of subparagraph (a) or (b) of this Paragraph 3 of any claim in
writing or of notice of the commencement of any action involving the subject
matter of the foregoing indemnity provisions, such indemnified party will, if a
claim in respect thereof is to be made against the indemnifying party pursuant
to the provisions of said subparagraph (a) or (b), promptly notify the
indemnifying party of the receipt of such claim or notice of the commencement of
such action, but the omission to so notify the indemnifying party will not
relieve it from any liability which it may have to any indemnified party
otherwise thereunder. In case such action is brought against any indemnified
party and it notifies the indemnifying party of the commencement thereof, the
indemnifying party shall have the right to participate in, and, to the extent
that it may wish, jointly with any other indemnifying party similarly notified,
to assume the defense thereof, with counsel satisfactory to such indemnified
party; provided, however, if the defendants in any action include both the
indemnified party and the indemnifying party and there is a conflict of interest
which would prevent counsel for the indemnifying party from also representing
the indemnified party, the indemnified party or parties shall have the right to
select one separate counsel to participate in the defense of such indemnified
party or parties. After notice from the indemnifying party to such indemnified
party of its election so to assume the defense thereof, the indemnifying party
will not be liable to such indemnified party pursuant to the provisions of said
subparagraph (a) or (b) for any legal or other expenses subsequently incurred by
such indemnified party in connection with the defense thereof other than
reasonable costs of investigation, unless (i) the indemnified party shall have
employed counsel in accordance with the provisions of the preceding sentence,
(ii) the indemnifying party shall not have employed
 
                                        2
<PAGE>   219
 
counsel satisfactory to the indemnified party to represent the indemnified party
within a reasonable time after the notice of the commencement of the action, or
(iii) the indemnifying party has authorized the employment of counsel for the
indemnified party at the expense of the indemnifying party.
 
     (d) If recovery is not available under the foregoing indemnification
provisions, for any reason other than as specified therein, the parties entitled
to indemnification by the terms thereof shall be entitled to contribution to
liabilities and expenses, except to the extent that contribution is not
permitted under Section 11(f) of the Securities Act. In determining the amount
of contribution to which the respective parties are entitled, there shall be
considered the parties' relative knowledge and access to information concerning
the matter with respect to which the claim was asserted, the opportunity to
correct and/or prevent any statement or omission, and any other equitable
considerations appropriate under the circumstances. Grantee and Issuer agree
that it would not be equitable if the amount of such contribution were
determined by pro rata or per capita allocation even if the underwriters and
Grantee as a group were considered a single entity for such purpose.
 
                                        3
<PAGE>   220
 
                                                                    APPENDIX VI.
<PAGE>   221
 
                                                                     APPENDIX VI
 
                   SOCIETY CORPORATION STOCK OPTION AGREEMENT
 
     STOCK OPTION AGREEMENT, dated as of October 2, 1993, between Society
Corporation, an Ohio corporation ("Issuer"), and KeyCorp, a New York corporation
("Grantee").
 
     WHEREAS, Grantee and Issuer have entered into a Supplemental Agreement to
Agreement and Plan of Merger (the "Supplemental Agreement") and a related
Agreement and Plan of Merger, both dated October 1, 1993 (together, the "Merger
Agreement"); and
 
     WHEREAS, as a condition to Grantee's entry into the Merger Agreement and in
consideration for such entry, Issuer has approved the grant to Grantee of the
Option (as hereinafter defined):
 
     NOW THEREFORE, in consideration of the foregoing and the mutual covenants
and agreements set forth herein and in the Merger Agreement, the parties hereto
agree as follows:
 
     1. (a) Issuer hereby grants to Grantee an unconditional, irrevocable option
(the "Option") to purchase, subject to the terms hereof, up to 23,299,888 fully
paid and nonassessable Common Shares, with a par value of $1 each (the "Common
Stock"), of Issuer at a price of $32.50 per share (such price, as adjusted if
applicable, the "Option Price"); provided, however, that in no event shall the
number of shares for which this Option is exercisable exceed 19.9% of the
Issuer's issued and outstanding shares of Common Stock. The number of shares of
Common Stock that may be received upon the exercise of the Option and the Option
Price are subject to adjustment as herein set forth.
 
     (b) In the event that any additional shares of Common Stock are issued or
otherwise become outstanding after the date of this Agreement (other than
pursuant to this Agreement), including, without limitation, pursuant to stock
option plans and in connection with acquisitions and other transactions
permitted by the Merger Agreement, the number of shares of Common Stock subject
to the Option shall be increased so that, after such issuance, it equals 19.9%
of the number of shares of the Common Stock then issued and outstanding without
giving effect to any shares subject or issued pursuant to the Option. Nothing
contained in this Section 1(b) or elsewhere in this Agreement shall be deemed to
authorize Issuer or Grantee to breach any provision of the Merger Agreement.
 
     2. (a) The Holder (as hereinafter defined) may exercise the Option, in
whole or part, if, but only if, both an Initial Triggering Event (as hereinafter
defined) and a Subsequent Triggering Event (as hereinafter defined) shall have
occurred prior to the occurrence of an Exercise Termination Event (as
hereinafter defined), provided that the Holder shall have sent the written
notice of such exercise (as provided in subsection (e) of this Section 2) within
90 days following such Subsequent Triggering Event. Each of the following shall
be an Exercise Termination Event: (i) the Effective Time of the Merger, (ii)
termination of the Merger Agreement in accordance with the provisions thereof if
such termination occurs prior to the occurrence of an Initial Triggering Event,
except a termination by Grantee pursuant to Section 10.1(b) of the Supplemental
Agreement (unless the breach by Issuer is non-volitional), or (iii) the passage
of twelve months after termination of the Merger Agreement if such termination
follows the occurrence of an Initial Triggering Event or a termination by
Grantee pursuant to Section 10.1(b) of the Supplemental Agreement (unless breach
by Issuer is non-volitional) (provided that if an Initial Triggering Event
continues or occurs beyond such termination, the Exercise Termination Event
shall be twelve months from the expiration of the Last Triggering Event but in
no event more than 18 months after such termination). The "Last Triggering
Event" shall mean the last Initial Triggering Event to expire. The term "Holder"
shall mean the holder or holders of the Option.
 
     (b) The term "Initial Triggering Event" shall mean any of the following
events or transactions occurring after the date hereof:
 
          (i) Issuer or any Issuer Subsidiary, without having received Grantee's
     prior written consent, shall have entered into an agreement to engage in an
     Acquisition Transaction with any person (the term "person" for purposes of
     this Agreement having the meaning assigned thereto in Sections 3(a)(9) and
     13(d)(3) of the Securities Exchange Act of 1934, as amended (the "Exchange
     Act"), and the rules and
 
                                        1
<PAGE>   222
 
     regulations thereunder), other than Grantee or a Grantee Subsidiary, or the
     Board of Directors of Issuer shall have recommended that the shareholders
     of Issuer approve or accept any Acquisition Transaction other than as
     contemplated by the Merger Agreement. For purposes of this Agreement,
     "Acquisition Transaction" shall mean (A) a merger or consolidation, or any
     similar transaction, with Issuer or any significant subsidiary (as defined
     in Rule 1.02 of Regulation S-X of the Securities and Exchange Commission)
     (a "Significant Subsidiary") of Issuer, (B) a purchase, lease, or other
     acquisition of all or substantially all the assets of Issuer or any
     Significant Subsidiary of Issuer, (C) a purchase or other acquisition
     (including by way of merger, consolidation, share exchange, or otherwise)
     of securities representing 10% or more of the voting power of Issuer or any
     Significant Subsidiary of Issuer, or (D) any substantially similar
     transaction; or
 
          (ii) (A) Any person, other than Grantee, any Grantee Subsidiary, any
     Issuer Subsidiary in a fiduciary capacity in the ordinary course of such
     Issuer Subsidiary's business, any employee benefit plan or employee stock
     ownership plan of Issuer or any Issuer Subsidiary, or any person organized,
     appointed, or established by Issuer or any Issuer Subsidiary for or
     pursuant to the terms of any such plan, alone or together with such
     person's affiliates and associates (as the terms "affiliate" and
     "associate" are defined in Rule 12b-2 under the Exchange Act), shall have
     acquired beneficial ownership (as the term "beneficial ownership" is
     defined in Section 13(d) of the Exchange Act and the rules and regulations
     thereunder) or the right to acquire beneficial ownership of 10% or more of
     the then outstanding shares of Common Stock of Issuer, or (B) any group (as
     the term "group" is defined in Section 13(d)(3) of the Exchange Act), other
     than a group of which Grantee, any Grantee Subsidiary, any Issuer
     Subsidiary in a fiduciary capacity in the ordinary course of such Issuer
     Subsidiary's business, any employee benefit plan or employee stock
     ownership plan of Issuer or any Issuer Subsidiary, or any person organized,
     appointed, or established by Issuer or any Issuer Subsidiary for or
     pursuant to the terms of any such plan is a member, shall have been formed
     that beneficially owns 10% or more of the Common Stock then outstanding; or
 
          (iii) Any person, other than Grantee or any Grantee Subsidiary, shall
     have made a bona fide proposal to Issuer or its shareholders by public
     announcement or written communication that is or becomes the subject of
     public disclosure to engage in an Acquisition Transaction; or
 
          (iv) After a proposal is made by a third party to Issuer or its
     shareholders to engage in an Acquisition Transaction, Issuer shall have
     breached any covenant or obligation contained in the Merger Agreement and
     such breach would entitle Grantee to terminate the Merger Agreement under
     Section 10.1(b) of the Merger Agreement (without regard to the cure periods
     provided for therein unless such cure is promptly effected without
     jeopardizing consummation of the Merger pursuant to the terms of the Merger
     Agreement) and such breach shall not have been cured within 30 days; or
 
          (v) Any person (other than Grantee or any Grantee Subsidiary), other
     than in connection with a transaction to which Grantee has given its prior
     written consent, shall have filed an application or notice with the Board
     of Governors of the Federal Reserve System (the "Federal Reserve Board"),
     or other federal or state bank regulatory authority, which application or
     notice has been accepted for processing, for approval to engage in an
     Acquisition Transaction.
 
     (c) The term "Subsequent Triggering Event" shall mean either of the
following events or transactions occurring after the date hereof:
 
          (i) The acquisition by any person, alone or together with such
     person's affiliates and associates, or any group, subject to the same
     exceptions as those set forth in clause (ii)(A) or (B), respectively, of
     Section (b) of this Section 2, of beneficial ownership of 25% or more of
     the then outstanding Common Stock; or
 
          (ii) The occurrence of an Initial Triggering Event described in clause
     (i) of subsection (b) of this Section 2, except that the percentage
     reference in sub-clause (C) of such clause (i) shall be 25%.
 
     (d) Issuer shall notify Grantee promptly in writing of the occurrence of
any Initial Triggering Event or Subsequent Triggering Event (together, a
"Triggering Event"), it being understood that the giving of such notice by
Issuer shall not be a condition to the right of the Holder to exercise the
Option.
 
                                        2
<PAGE>   223
 
     (e) In the event the Holder is entitled to and wishes to exercise the
Option, it shall send to Issuer a written notice (the date of which being herein
referred to as the "Notice Date") specifying (i) the total number of shares it
will purchase pursuant to such exercise, and (ii) a place and date not earlier
than three business days nor later than 60 business days from the Notice Date
for the closing of such purchase (the "Closing Date"); provided that if prior
notification to or approval of the Federal Reserve Board or any other regulatory
agency is required in connection with such purchase, the Holder shall promptly
file the required notice or application for approval and shall expeditiously
process the same and the period of time that otherwise would run pursuant to
this sentence shall run instead from the date on which any required notification
periods have expired or been terminated or such approvals have been obtained and
any requisite waiting period or periods shall have passed. Any exercise of the
Option shall be deemed to occur on the Notice Date relating thereto.
 
     (f) At the closing referred to in subsection (e) of this Section 2, the
Holder shall pay to Issuer the aggregate purchase price for the shares of the
Common Stock purchased pursuant to the exercise of the Option in immediately
available funds by a wire transfer to a bank account designated by Issuer,
provided that failure or refusal of Issuer to designate such a bank account
shall not preclude the Holder from exercising the Option.
 
     (g) At such closing, simultaneously with the delivery of immediately
available funds as provided in subsection (f) of this Section 2, Issuer shall
deliver to the Holder a certificate or certificates representing the number of
shares of Common Stock purchased by the Holder and, if the Option should be
exercised in part only, a new Option evidencing the rights of the Holder thereof
to purchase the balance of the shares purchasable hereunder, and the Holder
shall deliver to Issuer a copy of this Agreement and a letter agreeing that the
Holder will not offer to sell or otherwise dispose of such shares in violation
of applicable law or the provisions of this Agreement.
 
     (h) Certificates for Common Stock delivered at a closing hereunder may be
endorsed with a restrictive legend that shall read substantially as follows:
 
          "The transfer of the shares represented by this certificate is subject
     to certain provisions of an agreement between the registered holder hereof
     and Issuer and to resale restrictions arising under the Securities Act of
     1933, as amended, a copy of which agreement is on file at the principal
     office of Issuer. A copy of such agreement will be mailed to the holder
     hereof without charge within five days after receipt by Issuer of a written
     request."
 
It is understood and agreed that: (i) the reference to the resale restrictions
of the Securities Act of 1933, as amended (the "Securities Act"), in the above
legend shall be removed by delivery of substitute certificate(s) without such
reference if the Holder shall have delivered to Issuer a copy of a letter from
the staff of the Securities and Exchange Commission, or an opinion of counsel,
in form and substance satisfactory to Issuer, to the effect that such legend is
not required for purposes of the Securities Act; (ii) the reference to the
provisions of this Agreement in the above legend shall be removed by delivery of
substitute certificate(s) without such reference if the shares have been sold or
transferred in compliance with the provisions of this Agreement and under
circumstances that do not require the retention of such reference; and (iii) the
legend shall be removed in its entirety if the conditions in the preceding
clauses (i) and (ii) are both satisfied. In addition, such certificates shall
bear any other legend as may be required by law.
 
     (i) Upon the giving by the Holder to Issuer of the written notice of
exercise of the Option provided for under subsection (e) of this Section 2, the
tender of the applicable purchase price in immediately available funds and the
tender of a copy of this Agreement to Issuer, the Holder shall be deemed to be
the holder of record of the shares of Common Stock issuable upon such exercise,
notwithstanding that the stock transfer books of Issuer shall then be closed or
that certificates representing such shares of Common Stock shall not then be
actually delivered to the Holder. Issuer shall pay all expenses, and any and all
United States federal, state, and local taxes and other charges that may be
payable in connection with the preparation, issue, and delivery of stock
certificates under this Section 2 in the name of the Holder or its assignee,
transferee, or designee.
 
                                        3
<PAGE>   224
 
     3. Issuer agrees (i) that it shall at all times maintain, free from
preemptive rights, sufficient authorized but unissued or treasury shares of the
Common Stock so that the Option may be exercised without additional
authorization of Common Stock after giving effect to all other options,
warrants, convertible securities, and other rights to purchase Common Stock,
(ii) that it will not, by charter amendment or through reorganization,
consolidation, merger, dissolution, or sale of assets, or by any other voluntary
act, avoid or seek to avoid the observance or performance of any of the
covenants, stipulations, or conditions to be observed or performed hereunder by
Issuer, (iii) promptly to take all action as may from time to time be required
(including (A) complying with all premerger notification, reporting, and waiting
period requirements specified in 15 U.S.C. Section 18a and regulations
promulgated thereunder and (B) in the event, under the Bank Holding Company Act
of 1956, as amended, or the Change in Bank Control Act of 1978, as amended, or a
state banking law, prior approval of or notice to the Federal Reserve Board or
to any state regulatory authority is necessary before the Option may be
exercised, cooperating fully with the Holder in preparing such applications or
notices and providing such information to the Federal Reserve Board or such
state regulatory authority as they may require) in order to permit the Holder to
exercise the Option and Issuer duly and effectively to issue shares of the
Common Stock pursuant hereto, and (iv) promptly to take all action provided
herein to protect the rights of the Holder against dilution.
 
     4. This Agreement (and the Option granted hereby) are exchangeable, without
expense, at the option of the Holder, upon presentation and surrender of this
Agreement at the principal office of Issuer, for other Agreements providing for
Options of different denominations entitling the holder thereof to purchase in
the aggregate the same number of shares of the Common Stock purchasable
hereunder. The terms "Agreement" and "Option" as used herein include any Stock
Option Agreements and related Options for which this Agreement (and the Option
granted hereby) may be exchanged. Upon receipt by Issuer of evidence reasonably
satisfactory to it of the loss, theft, destruction, or mutilation of this
Agreement, and (in the case of loss, theft, or destruction) of reasonably
satisfactory indemnification, and upon surrender and cancellation of this
Agreement, if mutilated, Issuer will execute and deliver a new Agreement of like
tenor and date. Any such new Agreement executed and delivered shall constitute
an additional contractual obligation on the part of Issuer, whether or not the
Agreement so lost, stolen, destroyed, or mutilated shall at any time be
enforceable by anyone.
 
     5. In addition to the adjustment in the number of shares of Common Stock
that are purchasable upon exercise of the Option pursuant to Section 1 of this
Agreement, the number of shares of Common Stock purchasable upon the exercise
hereof and the Option Price shall be subject to adjustment from time to time as
provided in this Section 5:
 
          (a)(i) In the event of any change in Common Stock by reason of stock
     dividends, split-ups, mergers, recapitalizations, combinations,
     subdivisions, conversions, exchanges of shares, or the like, the type and
     number of shares of Common Stock purchasable upon exercise hereof shall be
     appropriately adjusted, and proper provision shall be made in the
     agreements governing any such transaction so that Grantee shall receive
     upon exercise of the Option the number and class of shares, other
     securities, property, or cash that Grantee would have received in respect
     of the Common Stock subject to the Option if the Option had been exercised
     and the Common Stock subject to the Option had been issued to Grantee
     immediately prior to such event or the record date therefor, as applicable;
     and
 
          (ii) Issuer may make such increases in the number of shares of Common
     Stock purchasable upon exercise hereof, in addition to those required under
     subsection (a)(i), as shall be determined by its Board of Directors to be
     advisable in order to avoid taxation so far as practicable of any dividend
     of stock or stock rights or any event treated as such for Federal income
     tax purposes to the recipients; and
 
     (b) Whenever the number of shares of Common Stock purchasable upon exercise
hereof is adjusted as provided in this Section 5, the Option Price shall be
adjusted by multiplying the Option Price by a fraction, the numerator of which
is equal to the number of shares of Common Stock purchasable prior to the
adjustment and the denominator of which is equal to the number of shares of the
Common Stock purchasable after the adjustment.
 
     (c) Notwithstanding anything in this Agreement, the sum of (i) the number
of shares of Common Stock to be purchased from time to time upon exercise of the
Option plus (ii) the number of shares of Common
 
                                        4
<PAGE>   225
 
Stock in respect of which Grantee may, directly or indirectly, alone or with
others, exercise or direct the exercise of voting power in the election of
directors shall not exceed 19.9% of the Common Stock issued and outstanding at
the time the Option is exercised; provided that, Grantee shall not be deemed to
have voting power with respect to Common Stock held by a subsidiary of Grantee
that is a bank, broker, nominee, or trustee who acquires shares in the ordinary
course of business for the benefit of others in good faith and not for the
purpose of circumventing Section 1701.831 of the Ohio General Corporation Law
unless the subsidiary is able, without further instructions from others, to
exercise or direct the exercise of the votes on a proposed control share
acquisition at a meeting of shareholders called under Section 1701.831 of the
Ohio General Corporation Law. In the event that the Option would be exercisable
for more than 19.9% of the aggregate of the shares of Common Stock but for this
clause (c), the Issuer shall, at the time the Option is exercised, make a cash
payment to Grantee equal to the excess of (i) the value of the Option without
giving effect to the limitation in the first sentence of this clause (c) over
(ii) the value of the Option after giving effect to the limitation in the first
sentence of this clause (c). This difference in value shall be determined by a
nationally-recognized investment banking firm selected by Grantee.
 
     6. Upon the occurrence of a Subsequent Triggering Event that occurs prior
to an Exercise Termination Event, Issuer shall, at the request of Grantee
delivered within 90 days of such Subsequent Triggering Event (whether on its own
behalf or on the behalf of any subsequent holder of this Option (or part
thereof) or any of the shares of Common Stock issued pursuant hereto), promptly
prepare, file, and keep current a shelf registration statement under the
Securities Act covering this Option and any shares issued and issuable pursuant
to this Option and shall use its best efforts to cause such registration
statement to become effective and remain current in order to permit the sale or
other disposition of this Option and any shares of Common Stock issued upon
total or partial exercise of this Option ("Option Shares") in accordance with
any plan of disposition requested by Grantee and by any underwriter or
underwriters selected by Grantee. Issuer will use its best efforts to cause such
registration statement first to become effective and then to remain effective
for such period not in excess of 180 days from the day such registration
statement first becomes effective or such shorter time as may be reasonably
necessary to effect such sales or other dispositions. Grantee shall have the
right to demand a second such registration by making a request to Issuer
therefor within two years of the date of its request made in accordance with the
first sentence of this Section 6. The obligations of Issuer hereunder to file a
registration statement and to maintain its effectiveness may be suspended for
one or more periods of time that do not exceed 60 days in the aggregate if the
Board of Directors of Issuer shall have determined that the filing of such
registration statement or the maintenance of its effectiveness would require
disclosure of nonpublic information that would materially and adversely affect
Issuer. The foregoing notwithstanding, if, at the time of any request by Grantee
for registration of the Option or Option Shares as provided above, Issuer is in
registration with respect to an underwritten public offering of shares of Common
Stock, and if, in the good faith judgment of the managing underwriter or
managing underwriters, or, if none, the sole underwriter or underwriters, of
such offering, the inclusion of the Holder's Option or Option Shares would
interfere with the successful marketing of the shares of Common Stock offered by
Issuer, the number of shares represented by the Option and/or the number of
Option Shares which in either case are to be covered in the registration
statement contemplated hereby may be reduced; provided, however, that after any
such required reduction the number of Option Shares to be included in such
offering for the account of the Holder shall constitute at least 25% of the
total number of shares to be sold by the Holder and Issuer in such offering in
the aggregate; provided further, however, that if such reduction occurs, then
the Issuer shall file a registration statement for the balance as promptly as
practical and no reduction shall thereafter occur. Whenever the provisions of
this Section 6 apply, the provisions of Appendix A attached hereto shall be
applicable.
 
     7. (a) Upon the occurrence of a Subsequent Triggering Event that occurs
prior to an Exercise Termination Event, (i) at the request of the Holder,
delivered within 90 days of such occurrence (or such later period as provided in
Section 10), Issuer shall repurchase the Option from the Holder at a price (the
"Option Repurchase Price") equal to the amount by which (A) the sum of the
market/offer price (as defined below) and Grantee's reasonable out-of-pocket
expenses incurred in connection with the transactions contemplated by the Merger
Agreement, including, without limitation, legal, accounting, and investment
banking fees, exceeds (B) the Option Price, multiplied by the number of shares
for which this Option may then be exercised and (ii) at the request of the owner
of Option Shares from time to time (the "Owner"), delivered within 90 days of
such occurrence (or such later period as provided in Section 10), Issuer shall
repurchase
 
                                        5
<PAGE>   226
 
such number of the Option Shares from the Owner as the Owner shall designate at
a price per share (the "Option Share Repurchase Price") equal to the
market/offer price plus Grantee's reasonable out-of-pocket expenses incurred in
connection with the transactions contemplated by the Merger Agreement,
including, without limitation, legal, accounting, and investment banking fees.
The term "market/offer price" shall mean the highest of (x) the price per share
of the Common Stock at which a tender offer or exchange offer therefor has been
made, (y) the price per share of the Common Stock to be paid by any third party
pursuant to an agreement with Issuer, and (z) the highest closing price for
shares of the Common Stock within the six-month period immediately preceding the
date the Holder gives notice of the required repurchase of this Option or the
Owner gives notice of the required repurchase of Option Shares, as the case may
be. In the event that an exchange offer is made for the Common Stock or an
agreement is entered into for a merger or consolidation involving consideration
other than cash, the value of the securities or other property issuable or
deliverable in exchange for the Common Stock shall be determined by a nationally
recognized investment banking firm selected by the Holder or Owner, as the case
may be, and Issuer. Notwithstanding the foregoing, if the same person who has
participated in a Triggering Event has entered, or after such Triggering Event
has occurred enters, into any agreement or understanding with Grantee relating
to Grantee's rights under this Option or with respect to the Option Shares or
directly or indirectly relating to Issuer, Grantee shall, notwithstanding the
terms of such agreement or understanding, at any time upon the occurrence of a
Subsequent Triggering Event of the type set forth in Section 2(c)(i) without
Issuer's approval, recommendation, or consent, promptly request that Issuer
repurchase the Option and any Option Shares held by Grantee as provided in this
Section 7 and Issuer shall do so.
 
     (b) The Holder and the Owner, as the case may be, may exercise its right to
require Issuer to repurchase the Option and any Option Shares pursuant to this
Section 7 by surrendering for such purpose to Issuer, at its principal office, a
copy of this Agreement or certificates for Option Shares, as applicable,
accompanied by a written notice or notices stating that the Holder or the Owner,
as the case may be, elects to require Issuer to repurchase this Option and/or
the Option Shares in accordance with the provisions of this Section 7. As
promptly as practicable, and in any event within five business days after the
surrender of the Option and/or certificates representing Option Shares and the
receipt of such notice or notices relating thereto, Issuer shall deliver or
cause to be delivered to the Holder the Option Repurchase Price and/or to the
Owner the Option Share Repurchase Price therefor or the portion thereof that
Issuer is not then prohibited under applicable law and regulation from so
delivering.
 
     (c) To the extent that Issuer is prohibited under applicable law or
regulation, or as a consequence of administrative policy, from repurchasing the
Option and/or the Option Shares in full, Issuer shall immediately so notify the
Holder and/or the Owner and thereafter deliver or cause to be delivered, from
time to time, to the Holder and/or the Owner, as appropriate, the portion of the
Option Repurchase Price and the Option Share Repurchase Price, respectively,
that it is no longer prohibited from delivering, within five business days after
the date on which Issuer is no longer so prohibited; provided, however, that if
Issuer at any time after delivery of a notice of repurchase pursuant to
paragraph (b) of this Section 7 is prohibited under applicable law or
regulation, or as a consequence of administrative policy, from delivering to the
Holder and/or the Owner, as appropriate, the Option Repurchase Price and the
Option Share Repurchase Price, respectively, in full (and Issuer hereby
undertakes to use its best efforts to receive all required regulatory and legal
approvals and to file any required notices as promptly as practicable in order
to accomplish such repurchase), the Holder or Owner may revoke its notice of
repurchase of the Option or the Option Shares, whereupon Issuer shall promptly
(i) deliver to the Holder a new Stock Option Agreement evidencing the right of
the Holder to purchase that number of shares of the Common Stock obtained by
multiplying the number of shares of the Common Stock for which the surrendered
Stock Option Agreement was exercisable at the time of delivery of the notice of
repurchase by a fraction, the numerator of which is the Option Repurchase Price
less the portion thereof theretofore delivered to the Holder and the denominator
of which is the Option Repurchase Price, and (ii) deliver to the Owner a
certificate for the Option Shares it is then so prohibited from repurchasing,
and Issuer shall have no further obligation to purchase such Option or Option
Shares.
 
     8. (a) In the event that prior to an Exercise Termination Event, Issuer
shall enter into an agreement (1) to consolidate with or merge into any person,
other than Grantee or one of its Subsidiaries, and shall not be the continuing
or surviving corporation of such consolidation or merger, (2) to permit any
person, other than
 
                                        6
<PAGE>   227
 
Grantee or one of its Subsidiaries, to merge into Issuer and Issuer shall be the
continuing or surviving corporation, but, in connection with such merger, the
then outstanding shares of Common Stock shall be changed into or exchanged for
stock or other securities of any other person or cash or any other property or
the then outstanding shares of Common Stock shall after such merger represent
less than 50% of the outstanding voting shares and voting share equivalents of
the merged company, or (3) to sell or otherwise transfer all or substantially
all of its assets to any person, other than Grantee or one of its Subsidiaries,
then, and in each such case, the agreement governing such transaction shall make
proper provision so that the Option shall, upon the consummation of any such
transaction and upon the terms and conditions set forth herein, be converted
into, or exchanged for, an option (the "Substitute Option"), at the election of
the Holder, of either (i) the Acquiring Corporation (as hereinafter defined),
(ii) any person that controls the Acquiring Corporation, or (iii) in the case of
a merger described in clause (a)(2), Issuer.
 
     (b) The following terms have the meanings indicated:
 
          (1) "Acquiring Corporation" shall mean (i) the continuing or surviving
     corporation of a consolidation or merger with Issuer (if other than
     Issuer), (ii) Issuer in a merger in which Issuer is the continuing or
     surviving person, or (iii) the transferee of all or substantially all of
     Issuer's assets.
 
          (2) "Substitute Common Stock" shall mean the common stock issued by
     the issuer of the Substitute Option upon exercise of the Substitute Option.
 
          (3) "Assigned Value" shall mean the market/offer price, as defined in
     Section 7; provided, however, that in the event of a sale of all or
     substantially all of Issuer's assets, the Assigned Value shall be the sum
     of the price paid in such sale for such assets and the current market value
     of the remaining assets of Issuer as determined by a nationally recognized
     investment banking firm selected by the Holder (or by a majority in
     interest of the Holders if there shall be more than one Holder), divided by
     the number of shares of the Common Stock of Issuer outstanding at the time
     of such sale.
 
          (4) "Average Price" shall mean the average closing price of a share of
     the Substitute Common Stock for the one year immediately preceding the
     consolidation, merger, or sale in question, but in no event higher than the
     closing price of the shares of the Substitute Common Stock on the day
     preceding such consolidation, merger, or sale; provided that, if Issuer is
     the issuer of the Substitute Option, the Average Price shall be computed
     with respect to a share of common stock issued by the person merging into
     Issuer or by any company which controls such person, as the Holder may
     elect.
 
     (c) The Substitute Option shall have the same terms as the Option, provided
that, if the terms of the Substitute Option cannot, for legal reasons, be the
same as the Option, such terms shall be as similar as possible and in no event
less advantageous to the Holder. The issuer of the Substitute Option shall also
enter into an agreement with the then Holder or Holders of the Substitute Option
in substantially the same form as this Agreement, which shall be applicable to
the Substitute Option.
 
     (d) The Substitute Option shall be exercisable for such number of shares of
the Substitute Common Stock as is equal to the Assigned Value multiplied by the
number of shares of the Common Stock for which the Option is then exercisable,
divided by the Average Price. The exercise price of the Substitute Option per
share of the Substitute Common Stock shall then be equal to the Option Price
multiplied by a fraction in which the numerator is the number of shares of the
Common Stock for which the Option is then exercisable and the denominator is the
number of shares of the Substitute Common Stock for which the Substitute Option
is exercisable.
 
     (e) In no event, pursuant to any of the foregoing paragraphs, shall the
Substitute Option be exercisable for more than 19.9% of the aggregate of the
shares of the Substitute Common Stock outstanding prior to exercise of the
Substitute Option. In the event that the Substitute Option would be exercisable
for more than 19.9% of the aggregate of the shares of Substitute Common Stock
but for the limitation in the first sentence of this clause (e), the Substitute
Option Issuer shall make a cash payment to Grantee equal to the excess of (i)
the value of the Substitute Option without giving effect to the limitation in
the first sentence of this clause (e) over (ii) the value of the Substitute
Option after giving effect to the limitation in the first sentence of this
clause (e). This difference in value shall be determined by a
nationally-recognized investment banking firm selected by Grantee.
 
                                        7
<PAGE>   228
 
     (f) Issuer shall not enter into any transaction described in subsection (a)
of this Section 8 unless the Acquiring Corporation and any person that controls
the Acquiring Corporation assume in writing all the obligations of Issuer
hereunder.
 
     9. (a) At the request of the holder of the Substitute Option (the
"Substitute Option Holder"), the issuer of the Substitute Option (the
"Substitute Option Issuer") shall repurchase the Substitute Option from the
Substitute Option Holder at a price (the "Substitute Option Repurchase Price")
equal to the amount by which (i) the sum of the Highest Closing Price (as
hereinafter defined) plus Grantee's reasonable out-of-pocket expenses incurred
in connection with the transactions contemplated by the Merger Agreement,
including, without limitation, legal, accounting, and investment banking fees,
exceeds (ii) the exercise price of the Substitute Option, multiplied by the
number of shares of the Substitute Common Stock for which the Substitute Option
may then be exercised, and at the request of the owner (the "Substitute Share
Owner") of shares of the Substitute Common Stock (the "Substitute Shares"), the
Substitute Option Issuer shall repurchase the Substitute Shares at a price per
share (the "Substitute Share Repurchase Price") equal to the sum of the Highest
Closing Price plus Grantee's reasonable out-of-pocket expenses incurred in
connection with the transactions contemplated by the Merger Agreement,
including, without limitation, legal, accounting, and investment banking fees.
The term "Highest Closing Price" shall mean the highest closing price for shares
of the Substitute Common Stock within the six-month period immediately preceding
the date the Substitute Option Holder gives notice of the required repurchase of
the Substitute Option or the Substitute Share Owner gives notice of the required
repurchase of the Substitute Shares, as applicable.
 
     (b) The Substitute Option Holder and the Substitute Share Owner, as the
case may be, may exercise its respective right to require the Substitute Option
Issuer to repurchase the Substitute Option and the Substitute Shares pursuant to
this Section 9 by surrendering for such purpose to the Substitute Option Issuer,
at its principal office, the agreement for such Substitute Option (or, in the
absence of such an agreement, a copy of this Agreement) and certificates for
Substitute Shares accompanied by a written notice or notices stating that the
Substitute Option Holder or the Substitute Share Owner, as the case may be,
elects to require the Substitute Option Issuer to repurchase the Substitute
Option and/or the Substitute Shares in accordance with the provisions of this
Section 9. As promptly as practicable, and in any event within five business
days after the surrender of the Substitute Option and/or certificates
representing Substitute Shares and the receipt of such notice or notices
relating thereto, the Substitute Option Issuer shall deliver or cause to be
delivered to the Substitute Option Holder the Substitute Option Repurchase Price
and/or to the Substitute Share Owner the Substitute Share Repurchase Price
therefor or the portion thereof which the Substitute Option Issuer is not then
prohibited under applicable law and regulation from so delivering.
 
     (c) To the extent that the Substitute Option Issuer is prohibited under
applicable law or regulation, or as a consequence of administrative policy, from
repurchasing the Substitute Option and/or the Substitute Shares in full, the
Substitute Option Issuer shall immediately so notify the Substitute Option
Holder and/or the Substitute Share Owner and thereafter deliver or cause to be
delivered, from time to time, to the Substitute Option Holder and/or the
Substitute Share Owner, as appropriate, the portion of the Substitute Share
Repurchase Price, respectively, which it is no longer prohibited from
delivering, within five business days after the date on which the Substitute
Option Issuer is no longer so prohibited; provided, however, that if the
Substitute Option Issuer is at any time after delivery of a notice of repurchase
pursuant to subsection (b) of this Section 9 prohibited under applicable law or
regulation, or as a consequence of administrative policy, from delivering to the
Substitute Option Holder and/or the Substitute Share Owner, as appropriate, the
Substitute Option Repurchase Price and the Substitute Share Repurchase Price,
respectively, in full (and the Substitute Option Issuer shall use its best
efforts to receive all required regulatory and legal approvals as promptly as
practicable in order to accomplish such repurchase), the Substitute Option
Holder or Substitute Share Owner may revoke its notice of repurchase of the
Substitute Option or the Substitute Shares, whereupon the Substitute Option
Issuer shall promptly (i) deliver to the Substitute Option Holder a new
Substitute Option evidencing the right of the Substitute Option Holder to
purchase that number of shares of the Substitute Common Stock obtained by
multiplying the number of shares of the Substitute Common Stock for which the
surrendered Substitute Option was exercisable at the time of delivery of the
notice of repurchase by a fraction, the numerator of which is the Substitute
Option Repurchase Price less the portion thereof theretofore delivered to the
Substitute Option Holder and the denominator of which is the Substitute Option
Repurchase
 
                                        8
<PAGE>   229
 
Price, and (ii) deliver to the Substitute Share Owner a certificate for the
Substitute Option Shares it is then so prohibited from repurchasing, and the
Substitute Option Issuer shall have no further obligation to purchase such
Substitute Option or Substitute Shares.
 
     10. The 90-day periods for exercise of certain rights under Sections 2, 6,
7, and 13 shall be extended in each such case (i) to the extent necessary to
obtain all regulatory approvals for the exercise of such rights and for the
expiration of all statutory waiting periods and (ii) to the extent necessary to
avoid liability under Section 16(b) of the Exchange Act by reason of such
exercise.
 
     11. Issuer hereby represents and warrants to Grantee as follows:
 
     (a) Issuer has full corporate power and authority to execute and deliver
this Agreement and to consummate the transactions contemplated hereby. The
execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly and validly authorized by the
Board of Directors of Issuer and no other corporate proceedings on the part of
Issuer are necessary to authorize this Agreement or to consummate the
transactions so contemplated. This Agreement has been duly and validly executed
and delivered by Issuer and constitutes a valid and binding obligation of
Issuer, enforceable against Issuer in accordance with its terms.
 
     (b) To the best knowledge of Issuer, as of the date of this Agreement, no
person owns beneficially more than 10 percent of the outstanding shares of its
Common Stock.
 
     (c) Issuer has taken all necessary corporate action to authorize and
reserve and permit it to issue, and at all times from the date hereof through
the termination of this Agreement in accordance with its terms will have
reserved for issuance upon the exercise of the option, that number of shares of
Common Stock equal to the maximum number of shares of Common Stock at any time
and from time to time issuable hereunder, and all such shares, upon issuance
pursuant hereto, will be duly authorized, validly issued, fully paid,
nonassessable, and will be delivered free and clear of all claims, liens,
encumbrances, and security interests and not subject to any preemptive rights.
 
     (d) The Rights Agreement, dated as of August 25, 1989, between Issuer and
Society National Bank, as Rights Agent (successor to First Chicago Trust Company
of New York as said Rights Agent) (the "Rights Agreement"), has been amended to
provide that Grantee will not become an "Acquiring Person" and that no "Flip-in
Event," "Flip-over Event," "Triggering Event," or "Share Acquisition Date" (as
such terms are defined in the Rights Agreement) will occur as a result of the
approval, execution, or delivery of this Agreement or the Merger Agreement or
the consummation of the transactions contemplated hereby and thereby, including
the purchase of Common Stock by Grantee pursuant to this Agreement, and that
"Rights" (as defined in the Rights Agreement) shall be issued under the Rights
Agreement in respect of any Common Stock of Issuer that is issued pursuant to
this Agreement after the "Record Date" but before the "Expiration Date" (as such
terms are defined in the Rights Agreement).
 
     (e) Except as disclosed pursuant to the Merger Agreement, the execution and
delivery of this Agreement does not, and the consummation of the transactions
contemplated hereby will not, conflict with, or result in a violation of or
default under, (i) any provision of the Articles of Incorporation or Regulations
of Issuer or any Issuer Subsidiary or (ii) subject to obtaining the approvals,
if any, contemplated or required by Section 7(c) or 9(c) of this Agreement, any
loan or credit agreement, note, mortgage, indenture, lease, or other agreement,
obligation, instrument, permit, concession, franchise, license, judgment, order,
decree, statute, law, ordinance, rule, or regulation applicable to Issuer or any
Issuer Subsidiary or their respective properties or assets, which conflict,
violation or default would have a material adverse effect on Issuer.
 
     12. Grantee hereby represents and warrants to Issuer that:
 
     (a) Grantee has full corporate power and authority to enter into this
Agreement and, subject to obtaining the approvals referred to in this Agreement,
to consummate the transactions contemplated by this Agreement. The execution and
delivery of this Agreement and the consummation of the transactions contemplated
hereby have been duly authorized by all necessary corporate action on the part
of Grantee. This Agreement has been duly executed and delivered by Grantee and
constitutes a valid and binding obligation of Grantee, enforceable against
Grantee in accordance with its terms.
 
                                        9
<PAGE>   230
 
     (b) The execution and delivery of this Agreement does not, and the
consummation of the transactions contemplated hereby will not, conflict with, or
result in a violation of or default under, (i) any provision of the Restated
Certificate of Incorporation, as amended, or Restated Bylaws of Grantee or
similar documents of any Grantee Subsidiary or (ii) subject to obtaining the
approvals referred to in this Agreement, any loan or credit agreement, note,
mortgage, indenture, lease, or other agreement, obligation, instrument, permit,
concession, franchise, license, judgment, order, decree, statute, law,
ordinance, rule, or regulation applicable to Grantee or any subsidiary of
Grantee or their respective properties or assets, which conflict, violation, or
default would have a material adverse effect on Grantee.
 
     (c) Any Option Shares or other securities acquired by Grantee upon exercise
of the Option will not be transferred or otherwise disposed of except in a
transaction registered or exempt from registration under the Securities Act.
 
     13. Neither of the parties hereto may assign any of its rights or
obligations under this Option Agreement or the Option created hereunder to any
other person without the express written consent of the other party, except that
in the event a Subsequent Triggering Event shall have occurred prior to an
Exercise Termination Event, Grantee, subject to the express provisions hereof
(including, without limitation, Section 7(a)), may assign in whole or in part
its rights and obligations hereunder within 90 days following such Subsequent
Triggering Event (or such later period as provided in Section 10); provided,
however, that until the date 30 days following the date on which the Federal
Reserve Board approves an application by Grantee under the Bank Holding Company
Act to acquire the Common Stock subject to the Option, Grantee may not assign
its rights under the Option except in (i) a widely dispersed public
distribution, (ii) a private placement in which no one party acquires the right
to purchase in excess of 2% of the voting shares of Issuer, (iii) an assignment
to a single party (e.g., a broker or investment banker) for the purpose of
conducting a widely dispersed public distribution on Grantee's behalf, or (iv)
any other manner approved by the Federal Reserve Board.
 
     14. Each of Grantee and Issuer will use its best efforts to make all
filings with, and to obtain consents of, all third parties and governmental
authorities necessary to the consummation of the transactions contemplated by
this Agreement, including without limitation making application to list the
shares of the Common Stock issuable hereunder on the New York Stock Exchange
upon official notice of issuance and applying to the Federal Reserve Board under
the Bank Holding Company Act for approval to acquire the shares issuable
hereunder, but Grantee shall not be obligated to apply to state banking
authorities for approval to acquire the shares of Common Stock issuable
hereunder until such time, if ever, as it deems appropriate to do so.
 
     15. The parties hereto acknowledge that damages would be an inadequate
remedy for a breach of this Agreement by either party hereto and that the
obligations of the parties hereto shall be enforceable by either party hereto
through injunctive or other equitable relief.
 
     16. If any term, provision, covenant, or restriction contained in this
Agreement is held by a court or a federal or state regulatory agency of
competent jurisdiction to be invalid, void, or unenforceable, the remainder of
the terms, provisions, covenants, and restrictions contained in this Agreement
shall remain in full force and effect, and shall in no way be affected,
impaired, or invalidated. If for any reason such court or regulatory agency
determines that the Holder is not permitted to acquire, or Issuer is not
permitted to repurchase pursuant to Section 7, the full number of shares of the
Common Stock provided in Section 1(a) hereof (as adjusted pursuant to Section
1(b) or 5 hereof), it is the express intention of Issuer to allow the Holder to
acquire or to require Issuer to repurchase such lesser number of shares as may
be permissible, without any amendment or modification hereof.
 
     17. All notices, requests, claims, demands, and other communications
hereunder shall be deemed to have been duly given when delivered in person, by
cable, telegram, telecopy, or telex, or by registered or certified mail (postage
prepaid, return receipt requested) at the respective addresses of the parties
set forth in the Merger Agreement.
 
     18. This Agreement shall be governed by and construed in accordance with
the laws of the State of Ohio, regardless of the laws that might otherwise
govern under applicable principles of conflicts of laws thereof.
 
     19. This Agreement may be executed in two or more counterparts, each of
which shall be deemed to be an original, but all of which shall constitute one
and the same agreement.
 
                                       10
<PAGE>   231
 
     20. Except as otherwise expressly provided herein, each of the parties
hereto shall bear and pay all costs and expenses incurred by it or on its behalf
in connection with the transactions contemplated hereunder, including fees and
expenses of its own financial consultants, investment bankers, accountants, and
counsel.
 
     21. Except as otherwise expressly provided herein, this Agreement contains
the entire agreement between the parties with respect to the transactions
contemplated hereunder and supersedes all prior arrangements or understandings
with respect thereof, written or oral. The terms and conditions of this
Agreement shall inure to the benefit of and be binding upon the parties hereto
and their respective successors and permitted assigns. Nothing in this
Agreement, expressed or implied, is intended to confer upon any party, other
than the parties hereto, and their respective successors and permitted assigns,
any rights, remedies, obligations, or liabilities under or by reason of this
Agreement, except as expressly provided herein.
 
     22. Capitalized terms used in this Agreement and not defined herein shall
have the meanings assigned thereto in the Merger Agreement, provided that
references to "Subsidiaries" of "Issuer" and "Grantee" shall be deemed to refer
to Subsidiaries of Society Corporation and KeyCorp, respectively.
 
     IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
executed on its behalf by its officers thereunto duly authorized, all as of the
day and year first above written.
 
                                            SOCIETY CORPORATION
 
                                            By:   /s/  ROBERT W. GILLESPIE
                                                Its: Chairman of the Board
 
                                            And:   /s/  LAWRENCE J. CARLINI
                                                  Its: Secretary
 
                                            KEYCORP
 
                                            By:   /s/  VICTOR J. RILEY, JR.
                                                Its: Chairman of the Board
 
                                            And:   /s/  ROBERT W. BOUCHARD
                                                  Its: Secretary
 
                                       11
<PAGE>   232
 
                                   APPENDIX A
 
                              REGISTRATION RIGHTS
 
     1. If and whenever Issuer is required by the provisions of Section 6 of the
Agreement to which this Appendix A is a part to effect the registration of
securities under the Securities Act of 1933 ("Securities Act"), Issuer will
 
          (a) prepare and file with the SEC such amendments to such registration
     statement and supplements to the prospectus contained therein as may be
     necessary to keep such registration statement current;
 
          (b) furnish to Grantee and to the underwriters of the Securities being
     registered such reasonable number of copies of the registration statement,
     preliminary prospectus, final prospectus, and such other documents as
     Grantee or such underwriters may reasonably request in order to facilitate
     the public offering of such securities;
 
          (c) use its best efforts to register or qualify the securities covered
     by such registration statement under such state securities or blue sky laws
     of such jurisdictions as Grantee or such underwriters may reasonably
     request; provided that Issuer shall not be required by virtue hereof to
     submit to jurisdiction in any state;
 
          (d) notify Grantee promptly after Issuer shall receive notice thereof,
     of the time when such registration statement has become effective or a
     supplement or amendment to any prospectus forming a part of such
     registration statement has been filed or become effective;
 
          (e) notify Grantee promptly of any request by the SEC for the amending
     or supplementing of such registration statement or prospectus or for
     additional information;
 
          (f) prepare and file with the SEC, promptly upon the request of
     Grantee, any amendments or supplements to such registration statement or
     prospectus which, in the opinion of counsel for Grantee and Issuer, are
     required under the Securities Act or the rules and regulations thereunder
     in connection with the distribution of the securities by Grantee;
 
          (g) prepare and promptly file with the SEC such amendments or
     supplements to such registration statement or prospectus as may be
     necessary to correct any statements or omissions if at the time when a
     prospectus relating to such securities is required to be delivered under
     the Securities Act, any event shall have occurred as the result of which
     such prospectus as then in effect would include an untrue statement of a
     material fact or omit to state any material fact necessary to make the
     statements therein, in the light of the circumstances in which they were
     not made, not misleading;
 
          (h) advise Grantee, promptly after it shall receive notice or obtain
     knowledge, of the issuance of any stop order or to obtain its withdrawal if
     such stop order should be issued; and
 
          (i) at the request of Grantee, furnish on the date or dates provided
     for in the underwriting agreement: (i) an opinion or opinions of the
     counsel representing Issuer for the purposes of such registration,
     addressed to the underwriters and to Grantee, covering such matters as such
     underwriters and Grantee may reasonably request and are customarily covered
     by Issuer's counsel at that time; and (ii) a letter or letters from the
     independent certified public accountants of Issuer, addressed to the
     underwriters and to Grantee, covering such matters as such underwriters or
     Grantee may reasonably request, in which letters such accountants shall
     state (without limiting the generality of the foregoing) that they are
     independent certified public accountants within the meaning of the
     Securities Act and that, in the opinion of such accountants, the financial
     statements and other financial data of Issuer included or incorporated by
     reference in the registration statement or any amendment or supplement
     thereto comply in all material respects with applicable accounting
     requirements of the Securities Act.
 
     2. With respect to the first registration requested pursuant to Section 6
of the Agreement, Issuer shall bear the following fees, costs, and expenses: All
registration, filing, and NASD fees, printing and engraving expenses, fees and
disbursements of counsel and accountants for Issuer, and all legal fees and
disbursements and other expenses of Issuer to comply with state securities or
blue sky laws of up to 15 jurisdictions in which
 
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<PAGE>   233
 
the securities to be offered are to be registered or qualified (with Grantee
bearing such fees, disbursements, and expenses with respect to additional
jurisdictions). Grantee shall bear such costs, fees, and expenses with respect
to the second registration requested pursuant to Section 6 of the Agreement.
With respect to both registrations requested pursuant to Section 6 of the
Agreement, fees and disbursements of counsel and accountants for Grantee,
underwriting discounts and commissions, and transfer taxes for Grantee and any
other expenses incurred by Grantee shall be borne by Grantee.
 
     3. (a) Issuer will indemnify and hold harmless Grantee, any underwriter (as
defined in the Securities Act) for Grantee, and each person, if any, who
controls Grantee or such underwriter (within the meaning of the Securities Act)
from and against any and all losses, damages, liabilities, costs, and expenses
to which Grantee or any such underwriter or controlling person may become
subject under the Securities Act or otherwise, including, without limitation,
any such losses, damages, liabilities, costs, or expenses arising out of or
caused by any untrue statement or alleged untrue statement of any material fact
contained in such registration statement, any prospectus or preliminary
prospectus contained therein, or any amendment or supplement thereto, or arising
out of or based upon the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances in which they were made, not misleading;
provided, however, that Issuer will not be liable in any such case to the extent
that any such losses, damages, liabilities, costs, or expenses arise out of or
are based upon an untrue statement or alleged untrue statement or omission or
alleged omission so made in conformity with information furnished by Grantee,
such underwriter, or such controlling person in writing specifically for use in
the preparation thereof.
 
     (b) Grantee will indemnify and hold harmless Issuer, any underwriter (as
defined in the Securities Act), and each person, if any, who controls Issuer or
such underwriter (within the meaning of the Securities Act) from and against any
and all losses, damages, liabilities, costs, or expenses to which Issuer or any
such underwriter or controlling person may become subject under the Securities
Act or otherwise, insofar as such losses, damages, liabilities, costs, or
expenses arise out of or are caused by any untrue or alleged untrue statement of
any material fact contained in such registration statement, any prospectus or
preliminary prospectus contained therein or any amendment or supplement thereto,
or arise out of or are based upon the omission or the alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances in which they were made, not
misleading, in each case to the extent, but only to the extent, that such untrue
statement or alleged untrue statement or omission or alleged omission was so
made in reliance upon and in conformity with written information furnished by
Grantee specifically for use in the preparation thereof.
 
     (c) Promptly after receipt by an indemnified party pursuant to the
provisions of subparagraph (a) or (b) of this Paragraph 3 of any claim in
writing or of notice of the commencement of any action involving the subject
matter of the foregoing indemnity provisions, such indemnified party will, if a
claim in respect thereof is to be made against the indemnifying party pursuant
to the provisions of said subparagraph (a) or (b), promptly notify the
indemnifying party of the receipt of such claim or notice of the commencement of
such action, but the omission to so notify the indemnifying party will not
relieve it from any liability which it may have to any indemnified party
otherwise thereunder. In case such action is brought against any indemnified
party and it notifies the indemnifying party of the commencement thereof, the
indemnifying party shall have the right to participate in, and, to the extent
that it may wish, jointly with any other indemnifying party similarly notified,
to assume the defense thereof, with counsel satisfactory to such indemnified
party; provided, however, if the defendants in any action include both the
indemnified party and the indemnifying party and there is a conflict of interest
which would prevent counsel for the indemnifying party from also representing
the indemnified party, the indemnified party or parties shall have the right to
select one separate counsel to participate in the defense of such indemnified
party or parties. After notice from the indemnifying party to such indemnified
party of its election so to assume the defense thereof, the indemnifying party
will not be liable to such indemnified party pursuant to the provisions of said
subparagraph (a) or (b) for any legal or other expenses subsequently incurred by
such indemnified party in connection with the defense thereof other than
reasonable costs of investigation, unless (i) the indemnified party shall have
employed counsel in accordance with the provisions of the preceding sentence,
(ii) the indemnifying party shall not have employed counsel satisfactory to the
indemnified party to represent the indemnified party within a reasonable time
after
 
                                        2
<PAGE>   234
 
the notice of the commencement of the action, or (iii) the indemnifying party
has authorized the employment of counsel for the indemnified party at the
expense of the indemnifying party.
 
     (d) If recovery is not available under the foregoing indemnification
provisions, for any reason other than as specified therein, the parties entitled
to indemnification by the terms thereof shall be entitled to contribution to
liabilities and expenses, except to the extent that contribution is not
permitted under Section 11(f) of the Securities Act. In determining the amount
of contribution to which the respective parties are entitled, there shall be
considered the parties' relative knowledge and access to information concerning
the matter with respect to which the claim was asserted, the opportunity to
correct and/or prevent any statement or omission, and any other equitable
considerations appropriate under the circumstances. Grantee and Issuer agree
that it would not be equitable if the amount of such contribution were
determined by pro rata or per capita allocation even if the underwriters and
Grantee as a group were considered a single entity for such purpose.
 
                                        3
<PAGE>   235
 
                                                                   APPENDIX VII.
<PAGE>   236
 
                                                                    APPENDIX VII
 
SEC. 623 PROCEDURE TO ENFORCE SHAREHOLDERS RIGHT TO RECEIVE PAYMENT FOR SHARES
 
     (a) A shareholder intending to enforce his right under a section of this
chapter to receive payment for his shares if the proposed corporate action
referred to therein is taken shall file with the corporation, before the meeting
of shareholders at which the action is submitted to a vote, or at such meeting
but before the vote, written objection to the action. The objection shall
include a notice of his election to dissent, his name and residence address, the
number and classes of shares as to which he dissents and a demand for payment of
the fair value of his shares if the action is taken. Such objection is not
required from any shareholder to whom the corporation did not give notice of
such meeting in accordance with this chapter or where the proposed action is
authorized by written consent of shareholders without a meeting.
 
     (b) Within ten days after the shareholders' authorization date, which term
as used in this section means the date on which the shareholders' vote
authorizing such action was taken, or the date on which such consent without a
meeting was obtained from the requisite shareholders, the corporation shall give
written notice of such authorization or consent by registered mail to each
shareholder who filed written objection or from whom written objection was not
required, excepting any shareholder who voted for or consented in writing to the
proposed action and who thereby is deemed to have elected not to enforce his
right to receive payment for his shares.
 
     (c) Within twenty days after the giving of notice to him, any shareholder
for whom written objection was not required and who elects to dissent shall file
with the corporation a written notice of such election, stating his name and
residence address, the number and classes of shares as to which he dissents and
a demand for payment of the fair value of his shares. Any shareholder who elects
to dissent from a merger under section 905 (Merger of subsidiary corporation) or
paragraph (c) of section 907 (Merger or consolidation of domestic and foreign
corporations) or from a share exchange under paragraph (g) of section 913 (Share
exchanges) shall file a written notice of such election to dissent within twenty
days after the giving to him of a copy of the plan of merger or exchange or an
outline of the material features thereof under section 905 and 913.
 
     (d) A shareholder may not dissent as to less than all of the shares, as to
which he has a right to dissent, held by him of record, that he owns
beneficially. A nominee or fiduciary may not dissent on behalf of any beneficial
owner as to less than all of the shares of such owner, as to which such nominee
or fiduciary has a right to dissent, held of record by such nominee or
fiduciary.
 
     (e) Upon consummation of the corporate action, the shareholder shall cease
to have any of the rights of a shareholder except the right to be paid the fair
value of his shares and any other rights under this section. A notice of
election may be withdrawn by the shareholder at any time prior to his acceptance
in writing of an offer made by the corporation, as provided in paragraph (g),
but in no case later than sixty days from the date of consummation of the
corporate action except that if the corporation fails to make a timely offer, as
provided in paragraph (g), the time for withdrawing a notice of election shall
be extended until sixty days from the date an offer is made. Upon expiration of
such time, withdrawal of a notice of election shall require the written consent
of the corporation. In order to be effective, withdrawal of a notice of election
must be accompanied by the return to the corporation of any advance payment made
to the shareholder as provided in paragraph (g). If a notice of election is
withdrawn, or the corporate action is rescinded, or a court shall determine that
the shareholder is not entitled to receive payment for his shares, or the
shareholder shall otherwise lose his dissenter's rights, he shall not have the
right to receive payment for his shares and he shall be reinstated to all his
rights as a shareholder as of the consummation of the corporate action,
including any intervening preemptive rights and the right to payment of any
intervening dividend or other distribution or, if any such rights have expired
or any such dividend or distribution other than in cash has been completed, in
lieu thereof, at the election of the corporation, the fair value thereof in cash
as determined by the board as of the time of such expiration or completion, but
without prejudice otherwise to any corporate proceedings that may have been
taken in the interim.
 
     (f) At the time of filing the notice of election to dissent or within one
month thereafter the shareholder of shares represented by certificates shall
submit the certificates representing his shares to the corporation, or to its
transfer agent, which shall forthwith note conspicuously thereon that a notice
of election has been filed
 
                                        1
<PAGE>   237
 
and shall return the certificates to the shareholder or other person who
submitted them on his behalf. Any shareholder of shares represented by
certificates who fails to submit his certificates for such notation as herein
specified shall, at the option of the corporation exercised by written notice to
him within forty-five days from the date of filing of such notice of election to
dissent, lose his dissenter's rights unless a court, for good cause shown, shall
otherwise direct. Upon transfer of a certificate bearing such notation, each new
certificate issued therefor shall bear a similar notation together with the name
of the original dissenting holder of the shares and a transferee shall acquire
no rights in the corporation except those which the original dissenting
sharehodler had at the time of the transfer.
 
     (g) Within fifteen days after the expiration of the period within which
shareholders may file their notices of election to dissent, or within fifteen
days after the proposed corporate action is consummated, whichever is later (but
in no case later than ninety days from the shareholders' authorization date),
the corporation or, in the case of a merger or consolidation, the surviving or
new corporation, shall make a written offer by registered mail to each
shareholder who has filed such notice of election to pay for his shares at a
specified price which the corporation considers to be their fair value. Such
offer shall be accompanied by a statement setting forth the aggregate number of
shares with respect to which notices of election to dissent have been received
and the aggregate number of holders of such shares. If the corporate action has
been consummated, such offer shall also be accompanied by (1) advance payment to
each such shareholder who has submitted the certificates representing his shares
to the corporation, as provided in paragraph (f), of an amount equal to eighty
percent of the amount of such offer, or (2) as to each shareholder who has not
yet submitted his certificates a statement that advance payment to him of an
amount equal to eighty percent of the amount of such offer will be made by the
corporation promptly upon submission of his certificates. If the corporate
action has not been consummated at the time of the making of the offer, such
advance payment or statement as to advance payment shall be sent to each
shareholder entitled thereto forthwith upon consummation of the corporate
action. Every advance payment or statement as to advance payment shall include
advice to the shareholder to the effect that acceptance of such payment does not
constitute a waiver of any dissenters' rights. If the corporate action has not
been consummated upon the expiration of the ninety day period after the
shareholders' authorization date, the offer may be conditioned upon the
consummation of such action. Such offer shall be made at the same price per
share to all dissenting shareholders of the same class, or if divided into
series, of the same series and shall be accompanied by a balance sheet of the
corporation whose shares the dissenting shareholder holds as of the latest
available date, which shall not be earlier than twelve months before the making
of such offer, and a profit and loss statement or statements for not less than a
twelve month period ended on the date of such balance sheet or, if the
corporation was not in existence throughout such twelve month period, for the
portion thereof during which it was in existence. Notwithstanding the foregoing,
the corporation shall not be required to furnish a balance sheet or profit and
loss statement or statements to any shareholder to whom such balance sheet or
profit and loss statement or statements were previously furnished, nor if in
connection with obtaining the shareholders' authorization for or consent to the
proposed corporate action the shareholders were furnished with a proxy or
information statement, which included financial statements, pursuant to
Regulation 14A or Regulation 14C of the United States Securities and Exchange
Commission. If within thirty days after the making of such offer, the
corporation making the offer and any shareholder agree upon the price to be paid
for his shares, payment therefor shall be made within sixty days after the
making of such offer or the consummation of the proposed corporate action,
whichever is later, upon the surrender of the certificates for any such shares
represented by certificates.
 
     (h) The following procedure shall apply if the corporation fails to make
such offer within such period of fifteen days, or if it makes the offer and any
dissenting shareholder or shareholders fail to agree with it within the period
of thirty days thereafter upon the price to be paid for their shares:
 
          (1) The corporation shall, within twenty days after the expiration of
     whichever is applicable of the two periods last mentioned, institute a
     special proceeding in the supreme court in the judicial district in which
     the office of the corporation is located to determine the rights of
     dissenting shareholders and to fix the fair value of their shares. If, in
     the case of merger or consolidation, the surviving or new corporation is a
     foreign corporation without an office in this state, such proceeding shall
     be brought in the county where the office of the domestic corporation,
     whose shares are to be valued, was located.
 
                                        2
<PAGE>   238
 
          (2) If the corporation fails to institute such proceeding within such
     period of twenty days, any dissenting shareholder may institute such
     proceeding for the same purpose not later than thirty days after the
     expiration of such twenty day period. If such proceeding is not instituted
     within such thirty day period, all dissenter's rights shall be lost unless
     the supreme court, for good cause shown, shall otherwise direct.
 
          (3) All dissenting shareholders, excepting those who, as provided in
     paragraph (g), have agreed with the corporation upon the price to be paid
     for their shares, shall be made parties to such proceeding, which shall
     have the effect of an action quasi in rem against their shares. The
     corporation shall serve a copy of the petition in such proceeding upon each
     dissenting shareholder who is a resident of this state in the manner
     provided by law for the service of a summons, and upon each nonresident
     dissenting shareholder either by registered mail and publication, or in
     such other manner as is permitted by law. The jurisdiction of the court
     shall be plenary and exclusive.
 
          (4) The court shall determine whether each dissenting shareholder, as
     to whom the corporation requests the court to make such determination, is
     entitled to receive payment for his shares. If the corporation does not
     request any such determination or if the court finds that any dissenting
     shareholder is so entitled, it shall proceed to fix the value of the
     shares, which, for the purposes of this section, shall be the fair value as
     of the close of business on the day prior to the shareholders'
     authorization date. In fixing the fair value of the shares, the court shall
     consider the nature of the transaction giving rise to the shareholder's
     right to receive payment for shares and its effects on the corporation and
     its shareholders, the concepts and methods then customary in the relevant
     securities and financial markets for determining fair value of shares of a
     corporation engaging in a similar transaction under comparable
     circumstances and all other relevant factors. The court shall determine the
     fair value of the shares without a jury and without referral to an
     appraiser or referee. Upon application by the corporation or by any
     shareholder who is a party to the proceeding, the court may, in its
     discretion, permit pretrial disclosure, including, but not limited to,
     disclosure of any expert's reports relating to the fair value of the shares
     whether or not intended for use at the trial in the proceeding and
     notwithstanding subdivision (d) of section 3101 of the civil practice law
     and rules.
 
          (5) The final order in the proceeding shall be entered against the
     corporation in favor of each dissenting shareholder who is a party to the
     proceeding and is entitled thereto for the value of his shares so
     determined.
 
          (6) The final order shall include an allowance for interest at such
     rate as the court finds to be equitable, from the date the corporate action
     was consummated to the date of payment. In determining the rate of
     interest, the court shall consider all relevant factors, including the rate
     of interest which the corporation would have had to pay to borrow money
     during the pendency of the proceeding. If the court finds that the refusal
     of any shareholder to accept the corporate offer of payment for his shares
     was arbitrary, vexatious or otherwise not in good faith, no interest shall
     be allowed to him.
 
          (7) Each party to such proceeding shall bear its own costs and
     expenses, including the fees and expenses of its counsel and of any experts
     employed by it. Notwithstanding the foregoing, the court may, in its
     discretion, apportion and assess all or any part of the costs, expenses and
     fees incurred by the corporation against any or all of the dissenting
     shareholders who are parties to the proceeding, including any who have
     withdrawn their notices of election as provided in paragraph (e), if the
     court finds that their refusal to accept the corporate offer was arbitrary,
     vexatious or otherwise not in good faith. The court may, in its discretion,
     apportion and assess all or any part of the costs, expenses and fees
     incurred by any or all of the dissenting shareholders who are parties to
     the proceeding against the corporation if the court finds any of the
     following: (A) that the fair value of the shares as determined materially
     exceeds the amount which the corporation offered to pay; (B) that no offer
     or required advance payment was made by the corporation; (C) that the
     corporation failed to institute the special proceeding within the period
     specified therefor; or (D) that the action of the corporation in complying
     with its obligations as provided in this section was arbitrary, vexatious
     or otherwise not in good faith. In making any determination as provided in
     clause (A), the court may consider the dollar amount or the percentage, or
     both, by which the fair value of the shares as determined exceeds the
     corporate offer.
 
                                        3
<PAGE>   239
 
          (8) Within sixty days after final determination of the proceeding, the
     corporation shall pay to each dissenting shareholder the amount found to be
     due him, upon surrender of the certificate for any such shares represented
     by certificates.
 
     (i) Shares acquired by the corporation upon the payment of the agreed value
therefor or of the amount due under the final order, as provided in this
section, shall become treasury shares or be cancelled as provided in section 515
(Reacquired shares), except that, in the case of a merger or consolidation, they
may be held and disposed of as the plan of merger or consolidation may otherwise
provide.
 
     (j) No payment shall be made to a dissenting shareholder under this section
at a time when the corporation is insolvent or when such payment would make it
insolvent. In such event, the dissenting shareholder shall, at his option:
 
          (1) Withdraw his notice of election, which shall in such event be
     deemed withdrawn with the written consent of the corporation; or
 
          (2) Retain his status as a claimant against the corporation and, if it
     is liquidated, be subordinated to the rights of creditors of the
     corporation, but have rights superior to the non-dissenting shareholders,
     and if it is not liquidated, retain his right to be paid for his shares,
     which right the corporation shall be obliged to satisfy when the
     restrictions of this paragraph do not apply.
 
          (3) The dissenting shareholder shall exercise such option under
     subparagraph (1) or (2) by written notice filed with the corporation within
     thirty days after the corporation has given him written notice that payment
     for his shares cannot be made because of the restrictions of this
     paragraph. If the dissenting shareholder fails to exercise such option as
     provided, the corporation shall execise the option by written notice given
     to him within twenty days after the expiration of such period of thirty
     days.
 
     (k) The enforcement by a shareholder of his right to receive payment for
his shares in the manner provided herein shall exclude the enforcement by such
shareholder of any other right to which he might otherwise be entitled by virtue
of share ownership, except as provided in paragraph (e), and except that this
section shall not exclude the right of such shareholder to bring or maintain an
appropriate action to obtain relief on the ground that such corporate action
will be or is unlawful or fraudulent as to him.
 
     (l) Except as otherwise expressly provided in this section, any notice to
be given by a corporation to a shareholder under this section shall be given in
the manner provided in section 605 (Notice of meetings of shareholders).
 
     (m) This section shall not apply to foreign corporations except as provided
in subparagraph (e)(2) of section 907 (Merger or consolidation of domestic and
foreign corporations). (Last amended by Ch. 117, L. '86, eff. 9-1-86.)
 
                                        4
<PAGE>   240
 
                                                                  APPENDIX VIII.
<PAGE>   241
 
                                                                   APPENDIX VIII
 
SEC. 1701.85 RELIEF TO DISSENTING SHAREHOLDER OF DOMESTIC CORPORATION.
 
     (A)(1) A shareholder of a domestic corporation is entitled to relief as a
dissenting shareholder in respect of the proposals in sections 1701.74, 1701.76,
and 1701.84 of the Revised Code, only in compliance with this section.
 
     (2) If the proposal must be submitted to the shareholders of the
corporation involved, the dissenting shareholder shall be a record holder of the
shares of the corporation as to which he seeks relief as of the date fixed for
the determination of shareholders entitled to notice of a meeting of the
shareholders at which the proposal is to be submitted, and such shares shall not
have been voted in favor of the proposal. Not later than ten days after the date
on which the vote on such proposal was taken at the meeting of the shareholders,
the shareholder shall deliver to the corporation a written demand for payment to
him of the fair cash value of the shares as to which he seeks relief, stating
his address, the number and class of such shares, and the amount claimed by him
as the fair cash value of the shares.
 
     (3) The dissenting shareholder entitled to relief under division (C) of
section 1701.84 of the Revised Code in the case of a merger pursuant to section
1701.80 of the Revised Code and a dissenting shareholder entitled to relief
under division (E) of section 1701.84 of the Revised Code in the case of a
merger pursuant to section 1701.801 of the Revised Code shall be a record holder
of the shares of the corporation as to which he seeks relief as of the date on
which the agreement of merger was adopted by the directors of that corporation.
Within twenty days after he has been sent the notice provided in section 1701.80
or 1701.801 [1701.80.1] of the Revised Code, the shareholder shall deliver to
the corporation a written demand for payment with the same information as that
provided for in division (A)(2) of this section.
 
     (4) In the case of a merger or consolidation, a demand served on the
constituent corporation involved constitutes service on the surviving or the new
corporation, whether served before, on, or after the effective date of the
merger or consolidation.
 
     (5) If the corporation sends to the dissenting shareholder, at the address
specified in his demand, a request for the certificates representing the shares
as to which he seeks relief, he, within fifteen days from the date of the
sending of such request, shall deliver to the corporation the certificates
requested, in order that the corporation may forthwith endorse on them a legend
to the effect that demand for the fair cash value of such shares has been made.
The corporation promptly shall return such endorsed certificates to the
shareholder. Failure on the part of the shareholder to deliver such certificates
terminates his rights as a dissenting shareholder, at the option of the
corporation, exercised by written notice sent to him within twenty days after
the lapse of the fifteen-day period, unless a court for good cause shown
otherwise directs. If shares represented by a certificate on which such a legend
has been endorsed are transferred, each new certificate issued for them shall
bear a similar legend, together with the name of the original dissenting holder
of such shares. Upon receiving a demand for payment from a dissenting
shareholder who is the record holder of uncertificated securities, the
corporation shall make an appropriate notation of the demand for payment in its
shareholder records. If uncertificated shares for which payment has been
demanded are to be transferred, any new certificate issued for the shares shall
bear the legend required for certificated securities as provided in this
paragraph. A transferee of the shares so endorsed, or of uncertificated
securities where such notation has been made, acquires only such rights in the
corporation as the original dissenting holder of such shares had immediately
after the service of a demand for payment of the fair cash value of the shares.
Such request by the corporation is not an admission by the corporation that the
shareholder is entitled to relief under this section.
 
     (B) Unless the corporation and the dissenting shareholder shall have come
to an agreement on the fair cash value per share of the shares as to which he
seeks relief, the shareholder or the corporation, which in case of a merger or
consolidation may be the surviving or the new corporation, within three months
after the service of the demand by the shareholder, may file a complaint in the
court of common pleas of the county in which the principal office of the
corporation which issued such shares is located, or was located at the time when
the proposal was adopted by the shareholders of the corporation, or, if the
proposal was not required to be submitted to the shareholders, was approved by
the directors. Other dissenting shareholders, within the period of three months,
may join as plaintiffs, or may be joined as defendants in any such proceeding,
and any two or
 
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<PAGE>   242
 
more such proceedings may be consolidated. The complaint shall contain a brief
statement of the facts, including the vote and the facts entitling the
dissenting shareholder to the relief demanded. No answer to such complaint is
required. Upon the filing of the complaint, the court, on motion of the
petitioner, shall enter an order fixing a date for a hearing on the complaint,
and requiring that a copy of the complaint and a notice of the filing and of the
date for hearing be given to the respondent or defendant in the manner in which
summons is required to be served or substituted service is required to be made
in other cases. On the day fixed for the hearing on the complaint or any
adjournment of it, the court shall determine from the complaint and from such
evidence as is submitted by either party whether the shareholder is entitled to
be paid the fair cash value of any shares and, if so, the number and class of
such shares. If the court finds that the shareholder is so entitled, the court
may appoint one or more persons as appraisers to receive evidence and to
recommend a decision on the amount of the fair cash value. The appraisers have
such power and authority as is specified in the order of their appointment. The
court thereupon shall make a finding as to the fair cash value of a share, and
shall render judgment against the corporation for the payment of it, with
interest at such rate and from such date as the court considers equitable. The
costs of the proceeding, including reasonable compensation to the appraisers to
be fixed by the court, shall be assessed or apportioned as the court considers
equitable. The proceeding is a special proceeding, and final orders in it may be
vacated, modified, or reversed on appeal pursuant to the rules of appellate
procedure and, to the extent not in conflict with those rules, Chapter 2505. of
the Revised Code. If, during the pendency of any proceeding instituted under
this section, a suit or proceeding is or has been instituted to enjoin or
otherwise to prevent the carrying out of the action as to which the shareholder
has dissented, the proceeding instituted under this section shall be stayed
until the final determination of the other suit or proceeding. Unless any
provision in division (D) of this section is applicable, the fair cash value of
the shares as agreed upon by the parties or as fixed under this section shall be
paid within thirty days after the date of final determination of such value
under this division, the effective date of the amendment to the articles, or the
consummation of the other action involved, whichever occurs last. Upon the
occurrence of the last such event, payment shall be made immediately to a holder
of uncertificated securities entitled to such payment. In the case of holders of
shares represented by certificates, payment shall be made only upon and
simultaneously with the surrender to the corporation of the certificates
representing the shares for which such payment is made.
 
     (C) If the proposal was required to be submitted to the shareholders of the
corporation, fair cash value as to those shareholders shall be determined as of
the day prior to that on which the vote by the shareholders was taken and, in
the case of a merger pursuant to section 1701.80 or 1701.801 [1701.80.1] of the
Revised Code, fair cash value as to shareholders of a constituent subsidiary
corporation shall be determined as of the day before the adoption of the
agreement of merger by the directors of the particular subsidiary corporation.
The fair cash value of a share for the purposes of this section is the amount
that a willing seller, under no compulsion to sell, would be willing to accept,
and that a willing buyer, under no complusion to purchase, would be willing to
pay, but in no event shall the fair cash value of it exceed the amount specified
in the demand of the particular shareholder. In computing such fair cash value,
any appreciation or depreciation in market value resulting from the proposal
submitted to the directors or to the shareholders shall be excluded.
 
     (D) The right and obligation of a dissenting shareholder to receive such
fair cash value and to sell such shares as to which he seeks relief, and the
right and obligation of the corporation to purchase such shares and to pay the
fair cash value of them terminates if:
 
     (1) Such shareholder has not complied with this section, unless the
corporation by its directors waives such failure;
 
     (2) The corporation abandons, or is finally enjoined or prevented from
carrying out, or the shareholders rescind their adoption, of the action
involved;
 
     (3) The shareholder withdraws his demand, with the consent of the
corporation by its directors;
 
     (4) The corporation and the dissenting shareholder shall not have come to
an agreement as to the fair cash value per share, and neither the shareholder
nor the corporation shall have filed or joined in a complaint under division (B)
of this section within the period provided.
 
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<PAGE>   243
 
     (E) From the time of giving the demand, until either the termination of the
rights and obligations arising from it or the purchase of the shares by the
corporation, all other rights accruing from such shares, including voting and
dividend or distribution rights, are suspended. If during the suspension, any
dividend or distribution is paid in money upon shares of such class, or any
dividend, distribution, or interest is paid in money upon any securities issued
in extinguishment of or in substitution for such shares, an amount equal to the
dividend, distribution, or interest which, except for the suspension, would have
been payable upon such shares or securities, shall be paid to the holder of
record as a credit upon the fair cash value of the shares. If the right to
receive fair cash value is terminated otherwise than by the purchase of the
shares by the corporation, all rights of the holder shall be restored and all
distributions which, except for the suspension, would have been made shall be
made to the holder of record of the shares at the time of termination.
 
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