-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, PgRdlKI5nMtrIbaNIjdjIGRV033SBcoBgXiulPdeISjdpg5dA71LAZ0pFrgjaU2C r7CHyfIck4kg0aRfAqA8XA== 0000909518-97-000430.txt : 19970729 0000909518-97-000430.hdr.sgml : 19970729 ACCESSION NUMBER: 0000909518-97-000430 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 19970728 SROS: NONE GROUP MEMBERS: KALISHMAN JEROME GROUP MEMBERS: NANCY F. KALISHMAN GROUP MEMBERS: ROBERT W. AFFHOLDER GROUP MEMBERS: XANADU INVESTMENTS, L.P. SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: INSITUFORM TECHNOLOGIES INC CENTRAL INDEX KEY: 0000353020 STANDARD INDUSTRIAL CLASSIFICATION: WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623] IRS NUMBER: 133032158 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-35120 FILM NUMBER: 97646275 BUSINESS ADDRESS: STREET 1: 1770 KIRBY PKWY STE 300 CITY: MEMPHIS STATE: TN ZIP: 38118 BUSINESS PHONE: 9017597473 MAIL ADDRESS: STREET 1: 1770 KIRBY PKWY SUITE 300 CITY: MEMPHIS STATE: TN ZIP: 38138 FORMER COMPANY: FORMER CONFORMED NAME: INSITUFORM OF NORTH AMERICA INC/TN/ DATE OF NAME CHANGE: 19930617 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: KALISHMAN JEROME CENTRAL INDEX KEY: 0000946098 STANDARD INDUSTRIAL CLASSIFICATION: [] IRS NUMBER: 498220159 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 11445 CONWAY ROAD CITY: ST. LOUIS STATE: MO ZIP: 63131 BUSINESS PHONE: 3149940255 SC 13D/A 1 AMEND NO. 3 TO SCHEDULE 13D ================================================================================ SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (AMENDMENT NO. 3) INSITUFORM TECHNOLOGIES, INC. - -------------------------------------------------------------------------------- (Name of Issuer) CLASS A COMMON STOCK, 457667 10 3 $.01 PAR VALUE - --------------------------------------------- --------------------------------- (Title of class of securities) (CUSIP number) DENNIS J. BLOCK, ESQ. WEIL, GOTSHAL & MANGES LLP 767 FIFTH AVENUE NEW YORK, NEW YORK 10153 (212) 310-8000 - -------------------------------------------------------------------------------- (Name, address and telephone number of person authorized to receive notices and communications) JULY 25, 1997 - -------------------------------------------------------------------------------- (Date of event which requires filing of this statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(b)(3) or (4), check the following box [_]. Check the following box if a fee is being paid with the statement [_]. (A fee is not required only if the reporting person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described in Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7.) Note: When filing this statement in paper format, six copies of this statement, including exhibits, should be filed with the Commission. See Rule 13d-1(a) for other parties to whom copies are to be sent. (Continued on following page(s)) ================================================================================ NYFS10...:\85\55385\0003\139\SCH7237P.470 - ------------------------------- -------------------------------------- CUSIP No. 457667 10 3 13D Page 2 - ------------------------------- -------------------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON: S.S. OR I.R.S. IDENTIFICATION NO. JEROME KALISHMAN OF ABOVE PERSON: - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (A) [X] (B) [_] - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS: NOT APPLICABLE - -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED [_] PURSUANT TO ITEM 2(d) OR 2(e): - -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF UNITED STATES ORGANIZATION: - -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER: 82,415 SHARES -------------------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER: 3,015,433 OWNED BY -------------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER: 82,415 REPORTING -------------------------------------------------------------- PERSON WITH 10 SHARED DISPOSITIVE POWER: 3,015,433 - -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY 3,097,848 REPORTING PERSON: - -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES [_] CERTAIN SHARES: - -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 11.5% - -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON: IN - -------------------------------------------------------------------------------- - ------------------------------- -------------------------------------- CUSIP No. 457667 10 3 13D Page 3 - ------------------------------- -------------------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON: S.S. OR I.R.S. IDENTIFICATION NO. ROBERT W. AFFHOLDER OF ABOVE PERSON: - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (A) [X] (B) [_] - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS: NOT APPLICABLE - -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED [_] PURSUANT TO ITEM 2(d) OR 2(e): - -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF UNITED STATES ORGANIZATION: - -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER: 1,307,858 SHARES -------------------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER: 0 OWNED BY -------------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER: 1,307,858 REPORTING -------------------------------------------------------------- PERSON WITH 10 SHARED DISPOSITIVE POWER: 0 - -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY 1,307,858 REPORTING PERSON: - -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES [_] CERTAIN SHARES: - -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 4.9% - -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON: IN - -------------------------------------------------------------------------------- - ------------------------------- -------------------------------------- CUSIP No. 457667 10 3 13D Page 4 - ------------------------------- -------------------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON: S.S. OR I.R.S. IDENTIFICATION NO. NANCY F. KALISHMAN OF ABOVE PERSON: - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (A) [X] (B) [_] - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS: NOT APPLICABLE - -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED [_] PURSUANT TO ITEM 2(d) OR 2(e): - -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF UNITED STATES ORGANIZATION: - -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER: 0 SHARES -------------------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER: 3,015,433 OWNED BY -------------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER: 0 REPORTING -------------------------------------------------------------- PERSON WITH 10 SHARED DISPOSITIVE POWER: 3,015,433 - -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY 3,015,433 REPORTING PERSON: - -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES [_] CERTAIN SHARES: - -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 11.2% - -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON: IN - -------------------------------------------------------------------------------- - ------------------------------- -------------------------------------- CUSIP No. 457667 10 3 13D Page 5 - ------------------------------- -------------------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON: S.S. OR I.R.S. IDENTIFICATION NO. XANADU INVESTMENTS, L.P. OF ABOVE PERSON: - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (A) [X] (B) [_] - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS: NOT APPLICABLE - -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED [_] PURSUANT TO ITEM 2(d) OR 2(e): - -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF MISSOURI ORGANIZATION: - -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER: 0 SHARES -------------------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER: 2,869,274 OWNED BY -------------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER: 0 REPORTING -------------------------------------------------------------- PERSON WITH 10 SHARED DISPOSITIVE POWER: 2,869,274 - -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY 2,869,274 REPORTING PERSON: - -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES [_] CERTAIN SHARES: - -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 10.7% - -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON: PN - -------------------------------------------------------------------------------- This is Amendment No. 3 to a Statement on Schedule 13D with respect to the class A common stock, $.01 par value (the "Common Stock"), of Insituform Technologies, Inc., a Delaware corporation (the "Company"), filed by a group comprised of Jerome Kalishman, Robert W. Affholder, Nancy F. Kalishman and Xanadu Investments, L.P. (collectively, the "Reporting Persons"). Capitalized terms used herein without definition shall have the meanings ascribed to them in the Schedule 13D, as amended. Item 2. Identity and Background. As reported in Item 4 below, Kalishman and Affholder have executed a definitive agreement with the Company, certain of its directors and other persons settling the proxy contest of Kalishman and Affholder for the election of a slate of nominees to the Board of Directors of the Company at the 1997 Annual Meeting. Accordingly, Affholder has withdrawn as a member of the group filing this Amendment No. 3 to the Schedule 13D, effective with the filing with the Securities and Exchange Commission (the "SEC") of this Schedule 13D. Item 4. Purpose of Transaction. On July 25, 1997, the Company, the Reporting Persons, certain directors of the Company and Stephen P. Cortinovis entered into an Agreement (the "Agreement") settling the proxy contest of Kalishman and Affholder for the election of a slate of nominees to the Board of Directors of the Company at the 1997 Annual Meeting. Set forth below is a summary of the terms of the Agreement, which is subject to and qualified by the terms of the Agreement, which is attached to this Amendment No. 3 as an Exhibit and incorporated herein by reference. The Agreement provides for the submission to stockholders at the 1997 Annual Meeting of amendments to the Company's Certificate of Incorporation that would eliminate the classification of the Company's Board of Directors and cancel the arrangements set forth in Section 7.3 of the Agreement and Plan of Merger dated as of May 23, 1995 among the Company, ITI Acquisition Corp. and Insituform Mid-America, Inc. relating to the election and replacement of the Company's directors. The Agreement also provides for the amendment to the Company's Bylaws to reduce the size of the Board of Directors from thirteen to eight, subject to automatic increase to nine upon the election or appointment of the Additional Nominee (as defined in the Agreement). 6 Subject to the stockholders' approval of the amendments to the Certificate of Incorporation referred to above, the Agreement provides that the Board will nominate and recommend for election as directors at the 1997 Annual Meeting Kalishman, Affholder, Paul A. Biddelman, Stephen P. Cortinovis, Silas Spengler, Anthony W. Hooper, Sheldon Weinig and Russell B. Wight, Jr. In addition, the Agreement provides that Mr. Wight will also have the right to select one additional nominee (the "Additional Nominee"), subject to the reasonable approval of Mr. Kalishman. Each party to the Agreement has agreed that he or it will cause all shares of Common Stock beneficially owned by such party to be voted at the 1997 Annual Meeting in favor of the amendments to the Company's Certificate of Incorporation contemplated by the Agreement and the election of the agreed-upon nominees as directors. Affholder and Kalishman agreed to terminate all activities with respect to their solicitation of proxies in connection with the 1997 Annual Meeting and agreed not to participate in any "solicitation" of any proxy with respect to matters to be presented at the 1997 Annual Meeting. The Agreement further provides that if during the period commencing with the election of directors at the 1997 Annual Meeting and ending immediately prior to the Company's 1999 Annual Meeting of Stockholders, any director then in office resigns or is unable to serve for any reason, such vacancy will be filled only with a designee chosen by both members of a nominating committee of the Board of Directors consisting of Mr. Wight and Mr. Kalishman, subject to the confirmation of the Board of Directors that such person possesses no characteristics that would disqualify him under applicable law from serving as a director. In the event Mr. Wight and Mr. Kalishman are unable to agree upon a designee to fill a vacancy, the matter will be referred to an Independent Nominator designated in the Agreement. The Agreement also provides that during the period commencing on the date of the Agreement and ending immediately prior to the 1999 Annual Meeting, each party to the Agreement will, among other things, cause all shares of capital stock of the Company that are beneficially owned by such party to be voted in favor of the election of the Company's nominees to the Board of Directors at the 1998 Annual Meeting, will not directly or indirectly solicit any proxies or consents with respect to the Company's voting stock or in any way participate in any "solicitation" of any proxy with respect to shares of the Company's voting stock or become a "participant" in any election contest with respect to the Company (provided that the foregoing shall not apply to actions taken in advance of the 1999 Annual 7 Meeting of Stockholders with respect to actions to be taken at the 1999 Annual Meeting, including, with limitation, the election of directors), will not form, join or otherwise participate in any "group" with respect to any voting stock of the Company, will not make any proposal or bring any business before any meeting of stockholders of the Company and will not call, request a call, or seek to call any special meeting of stockholders. The Agreement provides that the foregoing provisions will not prevent any party from taking actions in response to any "Extraordinary Proposal" (as defined in the Agreement) that is set forth in any preliminary or definitive proxy statement filed by the Company with the Commission. The Agreement also provides for reimbursement of the expenses of Affholder and Kalishman in connection with the proxy contest and the Amendment of the Agreement, dated October 25, 1995, as previously amended November 18, 1996, between the Company and Mr. Kalishman relating to Mr. Kalishman's service as Vice Chairman of the Company to extend for an additional year the term thereof (to December 9, 1999), provide for no compensation during the one-year extension and provide for continued office arrangements and secretarial service at the Company's head offices to be made available to Kalishman during the one-year extension. Item 6. Contracts, Arrangements, Undertakings or Relationships with Respect to Securities of the Issuer. See Item 4 above. Item 7. Material to be Filed as Exhibits. 1. Agreement, dated of July 25, 1997 by and among Insituform Technologies, Inc., Jerome Kalishman, Nancy F. Kalishman, The Jerome and Nancy Kalishman Family Fund, Robert W. Affholder, Xanadu Investments, L.P., Paul A. Biddelman, Stephen P. Cortinovis, Anthony W. Hooper, Silas Spengler, Sheldon Weinig and Russell B. Wight, Jr. 8 SIGNATURE After reasonable inquiry and to the best knowledge and belief of the undersigned, the undersigned certifies that the information set forth in this statement is true, complete and correct. Dated: July 25, 1997 /s/Jerome Kalishman -------------------------- Jerome Kalishman 9 SIGNATURE After reasonable inquiry and to the best knowledge and belief of the undersigned, the undersigned certifies that the information set forth in this statement is true, complete and correct. Dated: July 25, 1997 /s/Robert W. Affholder ---------------------- Robert W. Affholder 10 SIGNATURE After reasonable inquiry and to the best knowledge and belief of the undersigned, the undersigned certifies that the information set forth in this statement is true, complete and correct. Dated: July 25, 1997 /s/Nancy F. Kalishman ---------------------- Nancy F. Kalishman 11 SIGNATURE After reasonable inquiry and to the best knowledge and belief of the undersigned, the undersigned certifies that the information set forth in this statement is true, complete and correct. Dated: July 25, 1997 Xanadu Investments, L.P. By: /s/Jerome Kalishman 12 EXHIBIT INDEX Exhibit No. Description - ----------- ----------- 1. Agreement, dated of July 25, 1997 by and among Insituform Technologies, Inc., Jerome Kalishman, Nancy F. Kalishman, The Jerome and Nancy Kalishman Family Fund, Robert W. Affholder, Xanadu Investments, L.P., Paul A. Biddelman, Stephen P. Cortinovis, Anthony W. Hooper, Silas Spengler, Sheldon Weinig and Russell B. Wight, Jr. EX-1 2 EXHIBIT 1 Exhibit 1 AGREEMENT, dated as of July 25, 1997, by and among Insituform Technologies, Inc., a Delaware corporation (the "Company"); Jerome Kalishman ("Mr. Kalishman"), Nancy F. Kalishman ("Mrs. Kalishman"), The Jerome and Nancy Kalishman Family Fund (the "Fund"), Robert W. Affholder ("Mr. Affholder"), and Xanadu Investments, L.P. ("Xanadu"; Mr. Kalishman, Mrs. Kalishman, the Fund, Mr. Affholder and Xanadu may be collectively referred to herein as the "Dissident Group"); Paul A. Biddelman (Mr. "Biddelman"); Stephen P. Cortinovis ("Mr. Cortinovis"); Anthony W. Hooper ("Mr. Hooper"); Silas Spengler ("Mr. Spengler"); Sheldon Weinig ("Mr. Weinig"); and Russell B. Wight, Jr. ("Mr. Wight"; the Company, Mr. Kalishman, Mrs. Kalishman, the Fund, Mr. Affholder, Xanadu, Mr. Biddelman, Mr. Cortinovis, Mr. Hooper, Mr. Spengler, Mr. Weinig and Mr. Wight may be collectively referred to herein as the "parties" and may be individually referred to herein as a "party"). WHEREAS, the Company and the Dissident Group wish to end the pending proxy contest between them and to change the composition of the Board of Directors of the Company (the "Board of Directors"); and WHEREAS, in furtherance of the foregoing, and prior to the election of directors at the 1997 Annual Meeting (as defined below), the Company and the Dissident Group wish to eliminate the classification of the Board of Directors and the arrangements for electing "groups" of directors referred to in Section 7.3 of the Agreement and Plan of Merger dated as of May 23, 1995 among the Company, ITI Acquisition Corp., and Insituform Mid-America, Inc. (the "Merger Agreement"); NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein the parties hereto agree as follows: Section 1. Director Resignations. Prior to or contemporaneously with the execution and delivery hereof by the parties hereto, the Company shall have received the irrevocable resignations of Steven Roth, Brian Chandler, James D. Krugman, William Gorham and Alvin J. Siteman from the Board of Directors, to be effective no later than the succession to office of the directors elected at the 1997 Annual Meeting (as hereinafter defined). Any appointment to the Board of Directors from the date hereof until the succession to office of the directors elected at the 1997 Annual Meeting shall be subject to such 1 director's contemporaneous execution and delivery to the Company of his irrevocable resignation effective as aforesaid. Section 2. Special Meeting of the Board of Directors. As soon as possible after the date hereof, the President of the Company shall call a meeting of the Board of Directors (the "Special Board Meeting") at which the following items shall be submitted for approval: (a) the amendment of Article SIXTH of the Company's Certificate of Incorporation to eliminate classification of the Board of Directors, and submission of the proposed amendment for approval to the holders (the "Stockholders") of the shares of class A common stock, par value $.01 per share ("Common Stock"), of the Company, at the Company's 1997 Annual Meeting of Stockholders to be held on August 21, 1997, or such later date as shall be determined by the Company solely in order to facilitate effectuation of the provisions of Section 2(f) hereof (the "1997 Annual Meeting"), such amendment to be subject to and effective upon completion of all Required Actions (as hereinafter defined), other than any Required Action described under this paragraph (a) (for purposes hereof, "Required Actions" shall mean, collectively: (w) the approval by the Stockholders at the 1997 Annual Meeting of the matters described in Sections 2(a) , 2(c) and, if required, 2(b) hereof; (x) the election at the 1997 Annual Meeting, subject to the completion of all Required Actions, of the New Directors (as hereinafter defined); (y) the approval by the Board of Directors at the Special Board Meeting of the matters described in Sections 2(a), (c), (d), (e) and (g) hereof; and (z) compliance with Section 4(b) hereof); (b) the amendment of Article III, Section 2 of the Company's By-Laws to reduce the size of the Board of Directors from thirteen directors to eight directors, provided that the size of the Board of Directors shall increase automatically to nine directors upon the election or appointment of the Additional Nominee (as hereinafter defined) to the Board of Directors and, if such amendment is not approved by at least 80% of the members of the Board of Directors, submission of the proposed amendment of the Company's By-Laws for approval by Stockholders holding a majority of the shares of Common Stock at the 1997 Annual Meeting, such amendment to be subject to and effective upon completion of all Required Actions, other than any Required Action described under this paragraph (b); 2 (c) the cancellation of the arrangements set forth in Section 7.3 of the Merger Agreement, and the amendment of Article SIXTH of the Company's Certificate of Incorporation to provide that, subsequent to the succession to office following the 1997 Annual Meeting of the New Directors, vacancies in the Board of Directors will be filled as set forth in this Agreement, such cancellation and amendment to be subject to and effective upon completion of all Required Actions, other than any Required Action described under this paragraph (c); (d) the amendment of Article III of the Company's By-Laws to add a new Section 14 to be entitled "NOTICE AND APPROVAL OF CERTAIN ACTIONS," which would provide that, notwithstanding any other provision of the Company's By-Laws (and except for the implementation of Sections 2(a), (b), (c) and (e) and Section 6 hereof): (i) in the event that any director proposes to bring before any regular or special meeting of the Company's Board of Directors any proposal relating to any amendment of the Company's Certificate of Incorporation or By-Laws or this Agreement, or any change in the structure, composition (other than such director's resignation) or governance of the Board of Directors (any such action shall be referred to herein as a "Special Action"), such director must provide written notice thereof (including a reasonably detailed description of such proposal) to each member of the Board of Directors at least seven days prior to the date of the directors' meeting at which the Special Action is to be proposed; and (ii) the taking of any Special Action by the Board of Directors must be approved by a majority of all directors then serving; provided, however, that no Special Action which would have any effect prior to the 1999 Annual Meeting (as hereinafter defined) may be taken if such Special Action would conflict with, have the effect of modifying or otherwise frustrating any provision of this Agreement, including, without limitation, any amendment to Article SIXTH of the Company's Certificate of Incorporation or Article III Section 2 of the Company's By-Laws, as such provisions will be in effect pursuant to this Agreement following the 1997 Annual Meeting; (e) the amendment of Article IV Section 4B of the Company's By-Laws to provide that, notwithstanding any other provision of the Company's By-Laws, the Vice Chairman of the Board, acting in any capacity, shall not have the power to call any special meeting of Stockholders; 3 (f) (i) the approval at the 1997 Annual Meeting of new nominees for election to the Board of Directors (the "New Nominees"), which New Nominees will consist of Mr. Affholder, Mr. Biddelman, Mr. Cortinovis, Mr. Hooper, Mr. Kalishman, Mr. Spengler, Mr. Wight and Mr. Weinig, each of whom will serve for an initial term of one year and until such time as his successor has been duly elected and qualified, and the submission of such nominees at the 1997 Annual Meeting with the recommendation of the Board of Directors for election as directors by the Stockholders, such election and succession to office to be subject to and effective upon the completion of all Required Actions; provided, however, that in the event that any of the New Nominees is unable at the 1997 Annual Meeting to stand for election for any reason, his replacement shall be designated as follows: (i) Mr. Kalishman shall have the right to designate a replacement for Mr. Affholder and Mr. Affholder shall have the right to designate a replacement for Mr. Kalishman, (ii) Mr. Wight shall have the right to designate a replacement for Mr. Weinig and Mr. Weinig shall have the right to designate a replacement for Mr. Wight, (iii) Mr. Biddelman shall have the right to designate a replacement for Mr. Spengler and Mr. Spengler shall have the right to designate a replacement for Mr. Biddelman, (iv) the Committee (as hereinafter defined) shall have the right to designate a replacement for Mr. Cortinovis (except that in the event that the Committee does not select a replacement for Mr. Cortinovis within ten business days after notice that he is unable to stand for election, his replacement shall be selected by the Independent Nominator (as hereinafter defined), who shall be instructed to select a designee who meets the criteria set forth in clauses (i) and (ii) of Section 6 of this Agreement) and (v) the Board of Directors of the Company shall have the right to designate a replacement for Mr. Hooper; and provided, further, that Mr. Wight (or in the event of his death, incompetence or resignation from the Board of Directors, Mr. Weinig, the latter with full powers to designate his successor from the then members of the Board in the event of his death, incompetence or resignation from the Board of Directors) shall also have the right to select one additional nominee (the "Additional Nominee"), subject to the approval of Mr. Kalishman (or in the event of his death, incompetence 4 or resignation from the Board of Directors, Mr. Affholder, the latter with full powers to designate his successor from the then members of the Board in the event of his death, incompetence or resignation from the Board of Directors); except that (1) such approval may not be "unreasonably withheld" and (2) if such approval is withheld, the grounds therefore must be stated in writing by Mr. Kalishman in reasonable detail (an approval under this Section 2(f) shall be deemed to be "unreasonably withheld" if (1) it is delayed or delivered more than five business days after Mr. Kalishman is notified of the proposed Additional Nominee and receives biographical information regarding the proposed Additional Nominee or (2) such approval is withheld for any reason other than the proposed Additional Nominee (x) demonstrably having a material financial or a close personal or familial relationship with another director or affiliate of a director, (y) not being qualified to serve as a director or (z) having refused to execute a counterpart of this Agreement as contemplated by Section 9(m) hereof), and if Mr. Wight deems that Mr. Kalishman's approval of any proposed Additional Nominee has been unreasonably withheld upon the grounds referred to in clause (y) immediately preceding, the matter shall forthwith be referred to arbitration by the Independent Nominator (as hereinafter defined) whose decision as to whether the proposed Additional Nominee is qualified to serve as a director as aforesaid shall be dispositive and binding; and (ii) If such Additional Nominee has been approved, or such approval has been unreasonably withheld, as provided in Section 2(f)(i) hereof (and, if approval has been withheld upon the grounds referred to in clause (y) immediately preceding, such approval has been determined by the Independent Nominator to have been unreasonably withheld) prior to the date of the 1997 Annual Meeting, the Additional Nominee shall be recommended by the Company for election at the 1997 Annual Meeting, and the 1997 Annual Meeting may be adjourned by the Company, if necessary, for a reasonable period to prepare revised proxy materials which would include information with respect to the Additional Nominee (the persons to be presented to the Stockholders at the 1997 Annual Meeting in accordance with this Section 2(f) shall be collectively referred to herein as the "New Directors"). If the Additional Nominee has not been presented to the Stockholders for election as a director at the 1997 Annual 5 Meeting, Mr. Wight shall have the right thereafter to select the Additional Nominee during a period ending two months after the date hereof and (x) if such selection is approved, or such approval is unreasonably withheld, as provided in Section 2(f)(i) hereof (and, if approval is withheld upon the grounds referred to in clause (y) of Section 2(f)(i) hereof, such approval has been determined by the Independent Nominator to have been unreasonably withheld), the Additional Nominee shall be appointed to the Board of Directors promptly thereafter and shall thereafter be deemed a New Director and (y) if such selection (or any selection pursuant to this clause (y)) is not approved as aforesaid, Mr. Wight shall be entitled to an additional period expiring two months after the date on which such non-approval has been finally determined to select another proposed Additional Nominee in accordance with this Section 2(f); provided, however, that in the event Mr. Wight fails to select a proposed Additional Nominee within two months after the date hereof or, if applicable, within any extension of such period: (1) the Additional Nominee shall be selected by the Committee (as hereinafter defined) from a list of three candidates provided by the Independent Nominator (as defined below) each of whom (i) shall have appropriate qualifications to serve on the Company's Board of Directors and (ii) to whom none of the criteria set forth in clauses (x)-(y) of the last parenthetical phrase of Section 2(f)(i) hereof would apply; (2) in the event that both members of the Committee are unable to select a nominee from the list provided by the Independent Nominator within ten business days after receipt of such list, the members of the Committee shall each eliminate one candidate from the list; and (3) the remaining candidate shall then become the Additional Nominee (and if any Additional Nominee is determined in accordance with the foregoing provisions of this Section 2(f) and is subsequently unable to serve, a substitute Additional Nominee shall be determined pursuant to such provisions); and (g) the amendment of the Agreement dated October 25, 1995, as previously amended November 18, 1996, between the Company and Mr. Kalishman ("the Vice Chairmanship Agreement") as follows: (i) the reference under Section IIA of the Vice Chairmanship Agreement to "December 9, 1998" shall be extended for an additional year to read "December 9, 1999" (such extension of the Term, as defined under the Vice 6 Chairmanship Agreement, shall be referred to herein as the "Extension Period"); (ii) no compensation pursuant to Section IIIA of the Vice Chairmanship Agreement shall be paid to Mr. Kalishman during the Extension Period; and (iii) all other terms of the Vice Chairmanship Agreement shall continue to apply during the Extension Period, including, but not limited to, the continued provision to Mr. Kalishman of (x) office arrangements and secretarial services at the Company's head offices which are equivalent to those presently being provided to him under Section IIIB of the Vice Chairmanship Agreement and (y) health benefits and the use of an automobile as provided in such Section IIIB; ; and, subject to the applicable approvals thereof hereinabove set forth, the parties hereby agree to the implementation of the foregoing provisions. Mr. Kalishman and Mr. Affholder shall have the right to review the forms of the proposed amendments to the Company's Certificate of Incorporation and By-Laws described in Sections 2(a) - (e) hereof, and to the Vice Chairmanship Agreement described in Section 2(g) hereof, prior to the submission of such amendments for approval by the Board of Directors of the Company and the Company shall give due consideration to any modifications to such proposed forms reasonably requested by Mr. Kalishman and Mr. Affholder. Section 3. Revised Proxy Materials. The Company agrees that, as promptly as practicable after the date of the Special Board Meeting, it shall prepare and file with the Securities and Exchange Commission (the "SEC") revised proxy materials pursuant to which the Board of Directors will: (a) propose and recommend for approval of the Stockholders the amendments to the Company's Certificate of Incorporation described in Sections 2(a) and (c) hereof, and, if required to be submitted to them hereunder, the amendment to the Company's ByLaws described in Section 2(b) hereof, and (b) nominate and recommend the New Directors for election to the Board of Directors, such election, and their succession to office, to be subject to and effective upon the completion of the Required Actions as provided herein. Each party hereto will cooperate with and assist the Company in the preparation of the revised proxy materials described in this Section 3. The Company agrees that Mr. Kalishman and Mr. Affholder shall have the right to review and reasonably approve the revised proxy materials prior to the initial filing thereof with the SEC. The Company shall 7 have the right to postpone the 1997 Annual Meeting for such reasonable period of time as may be necessary to permit clearance of revised proxy materials with the SEC and/or to permit adequate opportunity for the timely mailing of such revised proxy materials to the Stockholders. Section 4. 1997 Annual Meeting of Stockholders. (a) Each party to this Agreement (other than the Company) (i) shall cause all shares of Common Stock beneficially owned (within the meaning of Regulation 13D and Rules 13d-3 and 13d-5 under the Securities Exchange Act of 1934 (the "Exchange Act")) by such party to be voted at the 1997 Annual Meeting in favor of (x) the amendments to the Company's Certificate of Incorporation described in Section 2(a) and (c) hereof and, if required to be submitted to the Stockholders hereunder, the amendment to Company's By-Laws described in Section 2(b) of this Agreement, and (y) the election as aforesaid of the New Directors to the Board of Directors and (ii) shall not bring any business before the 1997 Annual Meeting except as expressly contemplated hereby. (b) If all Required Actions have been completed (other than the Required Action referred to in this Section 4(b)), as promptly as practicable thereafter the Company shall duly file with the Secretary of State of Delaware a Certificate of Amendment to its Certificate of Incorporation setting forth the amendments that are referred to in Sections 2(a) and 2(c) hereof. Section 5. Termination of Proxy Contest. The members of the Dissident Group (a) shall immediately terminate all activities with respect to their solicitation of proxies in connection with the 1997 Annual Meeting or any adjournment thereof, (b) shall not, directly or indirectly solicit any proxies or participate in any "solicitation" of any "proxy" (as such terms are defined in Rule 14a-1 under the Exchange Act) with respect to matters to be presented at the 1997 Annual Meeting and shall not become a "participant" (as such term is used in Rule 14a-11 under the Exchange Act) in any election contest relating to the 1997 Annual Meeting, (c) shall promptly terminate all agreements and understandings supporting Mr. Affholder's inclusion in, and shall promptly remove Mr. Affholder from, the "group" referred to in the amendment to the Schedule 13D dated as of June 11, 1997 filed by members of the Dissident Group (the "Dissident 13D Group"; the Dissident Group after compliance with this clause (c) being referred to as the "Kalishman Group"), (d) shall promptly file an amendment to such Schedule 13D, and to any and all other statements filed by any member of the Dissident 13D Group pursuant to Section 13(d) of the Exchange Act, to 8 reflect the termination of the proxy contest and the other provisions of this Agreement (including eliminating references to any plan or proposal referred to in paragraph (d) of Item 4 of Schedule 13D under the Exchange Act), and (e) shall not take any other actions inconsistent with the matters contemplated hereby. The Company shall bear the reasonable out-of-pocket costs and expenses, not to exceed $150,000, of the Dissident 13D Group incurred in connection with their activities prior to the date hereof with respect to their solicitation of proxies in connection with the 1997 Annual Meeting, which the members thereof currently estimate at $125,000. Such amounts shall be paid by the Company within five business days after receipt of appropriate evidence of such costs and expenses. Section 6. Election of Directors After 1997 Annual Meeting. If during the period commencing with the succession to office of the New Directors following the 1997 Annual Meeting and ending immediately prior to the Company's 1999 Annual Meeting of Stockholders (the "1999 Annual Meeting") at which directors are elected, any director then in office resigns or is unable to serve for any reason, such vacancy shall be filled only with a designee chosen by both members of a Nominating Committee of the Board of Directors (the "Committee") consisting of Mr. Wight (or, in the event of his death, incompetence or resignation from the Board of Directors, Mr. Weinig, the latter with full power to designate his successor in the event of his death, incompetence or resignation from the Board of Directors) and Mr. Kalishman (or, in the event of his death, incompetence or resignation from the Board of Directors, Mr. Affholder, the latter with full power to designate his successor in the event of his death, incompetence or resignation from the Board of Directors), subject to the confirmation of the Board of Directors that such person possesses no characteristics that would disqualify him under applicable law from serving as a director, and thereafter the Company shall nominate and recommend such designee for election to the Board of Directors; provided, however, that in the event that Mr. Wight and Mr. Kalishman (or their respective successors, if applicable) are unable to agree upon a designee to fill a vacancy on the Board of Directors within 30 days after such vacancy has been created, the matter shall be referred to Directorship, 8 Sound Shore Drive, Greenwich, Connecticut 06830 (the "Independent Nominator"), who shall be instructed to provide the Nominating Committee with a list of three candidates (i) who have appropriate qualifications to serve on the Company's Board of Directors and (ii) to whom none of the criteria set forth in clauses (x) - (y) of the last parenthetical phrase of Section 2(f)(i) hereof would apply. In the event that both members of the Committee are unable to select a designee from the list 9 provided by the Independent Nominator within five business days after receipt of such list, the members of the Committee shall each eliminate one candidate from the list and the remaining candidate shall then become the designee. The fees, if any, of the Independent Nominator shall be paid by the Company. At the Company's 1998 Annual Meeting of Stockholders (the "1998 Annual Meeting"), the Company will nominate and recommend for election as directors of the Company the New Directors then in office and any director chosen pursuant to the foregoing provisions of this Section 6 (such persons nominated by the Company shall be referred to herein as the "Company Nominees") and during the period commencing with the succession to office of the New Directors following the 1997 Annual Meeting and ending with the 1999 Annual Meeting, the Company will not nominate or recommend for election as a director any person who is not a Company Nominee. Section 7. No Proxy Contests or Other Stockholder Actions. During the period commencing on the date hereof and ending immediately prior to the 1999 Annual Meeting, each party to this Agreement (other than the Company): (a) shall cause all shares of capital stock of the Company which have the right to vote generally in the election of directors, including, without limitation, shares of Common Stock (collectively, "Voting Stock"), that are beneficially owned (within the meaning of Regulation 13D and Rules 13d-3 and 13d-5 under the Exchange Act) by such party (i) to be present, in person or by proxy, at all meetings of Stockholders so that all such shares may be counted for the purpose of determining if a quorum is present at such meetings, (ii) to be voted as provided in Section 4 and in favor of the election of the Company Nominees to the Board of Directors at the 1998 Annual Meeting, and (iii) to be voted in favor of persons nominated and recommended by the Company in any other election of directors; (b) shall not directly or indirectly (except through the Company pursuant to due authorization) solicit any proxies or consents with respect to Voting Stock or in any way participate in any "solicitation" of any "proxy" with respect to shares of Voting Stock (as such terms are defined in Rule 14a-1 under the Exchange Act) or become a "participant" in any election contest with respect to the Company (as such term is used in Rule 14a-11 under the Exchange Act) or request or induce or attempt to induce any other person to take any such actions or attempt to advise, counsel or otherwise influence in any way any person with 10 respect to the voting of Voting Stock; provided however that this Section 6(b) shall not apply to actions taken in advance of the 1999 Annual Meeting with respect to actions to be taken at the 1999 Annual Meeting, including, without limitation, the election of directors; (c) shall not (i) form, join or otherwise participate in any "group" (within the meaning of Section 13(d)(3) of the Exchange Act or Rule 13d-5 thereunder) with respect to any Voting Stock (a "13D Group"), (ii) otherwise act in concert with any other person for the purpose of holding or voting Voting Stock, or (iii) file any amendment to any Schedule 13D that relates to a plan or proposal referred to in paragraphs (d) or (g) of Item 4 of Schedule 13D or that contains any statement that is in any way inconsistent with the provisions of the Agreement; provided that this clause (c) shall not apply to any arrangements that are reflected in the Company's proxy statement dated June 6, 1997, without reference to any supplement or amendment thereto (the "1997 Proxy Statement") or to any 13D Group formed for the purposes of conducting a solicitation or otherwise taking action with respect to actions to be taken at the 1999 Annual Meeting, including, without limitation, the election of directors, and clause (i) (with respect to participation) and clause (ii) of this paragraph (c) shall not apply to the Kalishman Group; (d) shall not deposit any Voting Stock in a voting trust or subject any Voting Stock to any arrangement or agreement with respect to the voting of such Voting Stock or other agreement having similar effect, except that this clause (d) shall not apply to any arrangements that are reflected in the 1997 Proxy Statement; (e) except as expressly contemplated hereby, shall not make any proposal (including any proposal pursuant to Rule 14a-8 under the Exchange Act) or bring any business before any meeting of Stockholders and, other than actions proposed or taken at any meeting of the Board of Directors, shall not take or seek to take any action in the name or on behalf of the Company except pursuant to the performance of any responsibilities attendant to any office in the Company held by such party or pursuant to a resolution adopted by the Board of Directors; (f) shall not call, request the call, or seek to call, any special meeting of Stockholders; and 11 (g) shall not enter into any discussions, negotiations, arrangements or understandings with any other person with respect to any of the foregoing matters referred to in this Section 7; provided, however, that clauses (b), (c) and (d) and (insofar as it relates to clauses (b), (c) or (d), clause (g) of this Section 7), shall not prevent any party hereto from taking any of the actions referred to in such clauses to the extent (but solely to the extent) that such actions are taken in response to any "Extraordinary Proposal" (as hereinafter defined) that is set forth in any preliminary or definitive proxy statement filed by the Company with the SEC; and provided further that, notwithstanding the first three lines of this Section 7, if any directors other than the Company Nominees are elected at the 1998 Annual Meeting as the result, directly or indirectly, of a breach of this Agreement or any failure to vote in favor of matters specified herein, by any party or parties hereto, the obligations of such breaching or non-voting party or parties, and its affiliates (as defined in Rule 12b-2 under the Exchange Act), under this Section 7 shall not terminate at the time specified above but shall terminate on December 31, 1999. For purposes hereof, an "Extraordinary Proposal" shall mean any proposal of the Company other than a proposal regarding any of the matters referred to in clauses (1) - (4) of Rule 14a-6(a) under the Exchange Act, as in effect on the date of this Agreement, and other than the matters to be voted upon pursuant to Section 4 hereof. Section 8. Termination of the Agreement. In the event that either (i) the Stockholders fail to approve the amendments to the Company's Certificate of Incorporation described in Section 2(a) and (c) hereof and, if required to be submitted to them hereunder, the amendment to Company's By-Laws described in Section 2(b) hereof, at the 1997 Annual Meeting, or (ii) the Board of Directors fails to approve the amendments to the Company's Certificate of Incorporation described in Sections 2 (a) and (c) hereof or the amendments to the Company's By-Laws as described in Section 2(d) and (e) hereof or fails to approve the New Nominees or the Additional Nominee as contemplated hereunder or fails to approve the matter described in Section 2(g) hereof, this Agreement, and all obligations of the parties hereunder, shall automatically terminate and the 1997 Annual Meeting shall be adjourned or postponed and reconvened on or rescheduled to October 21, 1997; provided that, if any such non- approval by the Stockholders or the Board of Directors is the result directly or indirectly of a breach of this Agreement, or any failure to vote in favor in the specified matters, by any 12 party or parties hereto, the obligations of such breaching or non-voting party or parties, and its affiliates (defined as aforesaid), hereunder shall not terminate as provided above in this Section 8 but shall terminate on December 31, 1999, and the 1997 Annual Meeting shall be adjourned and reconvened on such date as shall be determined by the Board of Directors. Section 9. Miscellaneous. (a) All notices, requests or instruction hereunder shall be in writing and delivered personally or sent by registered or certified mail, postage prepaid or by telecopy (or like transmission), as follows: (1) if to the Company: 702 Spirit 40 Park Drive Chesterfield, MO 63005 Attention: Vice President - General Counsel Fax: (314) 530-8701 with a copy to: Howard Kailes, Esq. Krugman Chapnick & Grimshaw LLP Park 80 West - Plaza Two Saddle Brook, New Jersey 07663 Fax: (201) 845-9627 (2) if to any other party hereto, at its address set forth in the records of the Company. Any of the above addresses may be changed at any time by notice given as provided above; provided, however, that any such notice of change of address shall be effective only upon receipt. All notices and other communications given to any party hereto in accordance with the provisions hereof shall be deemed to have been given on the date of receipt, provided that any notice or other communication that is received other than during regular business hours of the recipient shall be deemed to have been given at the opening of business on the next business day of the recipient. 13 (b) This Agreement contains the entire agreement between the parties hereto with respect to the transactions contemplated hereby and, subject to and effective upon completion of all Required Actions, supersedes and amends all prior understandings, arrangements and agreements with respect to the subject matter hereof, including, without limitation, Section 7.3 of the Merger Agreement and Section 7.3 of the Agreement dated as of July 3, 1992, among the Company, INA Acquisition Corp. and Insituform Group Limited. No modification hereof shall be effective unless in writing and signed by the party against which it is sought to be enforced. The parties hereto may, by written agreement, make any modification or amendment of this Agreement, but no such modification or amendment will be effective unless signed by all of the parties hereto. The captions appearing herein are for the convenience of the parties only and shall not be construed to affect the meaning of the provisions of this Agreement. (c) Each of the parties hereto shall use such party's reasonable best efforts to take such actions as may be necessary or reasonably requested by the other parties hereto to carry out and consummate the transactions contemplated by this Agreement. No party to this Agreement shall directly or indirectly (i) challenge the validity or enforceability of any provision of this Agreement or the matters contemplated hereby or (ii) commence any lawsuit or other legal proceeding, or take any other action, that seeks to frustrate the performance of this Agreement in accordance with its terms. (d) This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware applicable in the case of agreements made and to be performed entirely within such State. (e) Each of the parties hereto recognizes that any breach of the terms of this Agreement may give rise to irreparable harm for which money damages would not be an adequate remedy, and accordingly agree that, in addition to other remedies, any nonbreaching party shall be entitled to an injunction or injunctions to prevent breaches of the provisions of this Agreement and to enforce the terms and provisions of this Agreement by a decree of specific performance in any action instituted in any court of the United States or any state hereof having jurisdiction without the necessity of proving the inadequacy as a remedy of money damages. 14 (f) This Agreement and all of the provisions hereof shall be binding upon and inure to the benefit of the parties hereto and their respective successors, heirs, legal representatives and permitted assigns, but neither this Agreement nor any of the rights, interests, or obligations hereunder may be assigned by any of the parties hereto without the prior written consent of the other parties and any such attempted assignment without consent shall be void. (g) This Agreement is not intended, and shall not be construed, to confer any rights or remedies hereunder upon any party other than the parties hereto and those parties designated as directors pursuant to Section 2(f) or Section 6, which parties shall be entitled to enforce their rights under such provisions to which they are entitled to benefits. (h) Any term or provision of this Agreement that is invalid or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such invalidity or unenforceability without rendering invalid or unenforceable the remaining terms and provisions of this Agreement, or any such terms in any other jurisdiction. If any provision of this Agreement is so broad as to be unenforceable, such provision shall be interpreted to be only so broad as is enforceable. (i) The Company shall bear the reasonable expenses of each party hereto in connection with the execution and delivery of this Agreement and the consummation of the transactions contemplated hereby. (j) Each party hereto agrees that, prior to the 1997 Annual Meeting, the Board of Directors shall not take any action (i) with respect to the grant of any stock options or other compensation to any director, (ii) that would conflict with or frustrate any provision of this Agreement or (iii) with respect to the approval of any merger or business combination involving a change of control of the Company or any sale of all or substantially all of the assets of the Company; provided, however that nothing set forth in this Section 9(j) shall prohibit the Board of Directors from considering prior to the 1997 Annual Meeting any unsolicited bid involving any merger or sale of all or substantially all of the assets of the Company that is not known to any of the parties as of the date hereof. 15 (k) Mr. Kalishman and Mr. Affholder on the one hand, and the Company, on the other hand hereby agree to release one another from any and all liabilities, claims and obligations of any kind arising directly or indirectly from their respective activities in connection with the pending proxy contest between the Company and the Dissident Group, the preparation for the 1997 Annual Meeting and the solicitation of proxies therefor, in each case prior to the date hereof. (l) This Agreement may be executed in counterparts, each of which shall be deemed an original, but all of which taken together shall constitute one and the same instrument. (m) On or prior to the date on which the Additional Nominee is selected in accordance with Section 2(f) hereof, the Additional Nominee shall execute a counterpart of this Agreement, to be held in escrow and either (i) released therefrom upon approval of the Additional Nominee in accordance with Section 2(f) hereof or (ii) canceled in the event such approval is not promptly obtained. (n) Each party hereto (other than the Company) is signing this Agreement in his capacity as a Stockholder and not in his capacity as a director or officer (except on behalf of the Company), it being understood that this Agreement is not intended to limit or abridge the fiduciary responsibility of the directors of the Company. 16 IN WITNESS WHEREOF, this Agreement has been duly executed by the parties hereto as of the date first above written. INSITUFORM TECHNOLOGIES, INC. By: /s/Anthony W. Hooper ---------------------------------------- Title: President and Chief Executive Officer /s/Russell B. Wight, Jr. ---------------------------------------- Russell B. Wight, Jr. /s/Paul A. Biddelman ---------------------------------------- Paul A. Biddelman /s/Sheldon Weinig ---------------------------------------- Sheldon Weinig /s/Silas Spengler ---------------------------------------- Silas Spengler /s/Anthony W. Hooper ---------------------------------------- Anthony W. Hooper 17 XANADU INVESTMENTS, L.P. By: The Jerome Kalishman Revocable Trust By: /s/Jerome Kalishman - ----------------------------------------------- Trustee By: The Nancy F. Kalishman Revocable Trust By: /s/Nancy F. Kalishman - ----------------------------------------------- Trustee /s/Jerome Kalishman - ----------------------------------------------- Jerome Kalishman /s/Nancy F. Kalishman - ----------------------------------------------- Nancy F. Kalishman The Jerome and Nancy Kalishman Family Fund By: /s/Jerome Kalishman - ----------------------------------------------- Jerome Kalishman, Trustee /s/Robert W. Affholder - ----------------------------------------------- Robert W. Affholder /s/Stephen P. Cortinovis - ----------------------------------------------- Stephen P. Cortinovis 18 -----END PRIVACY-ENHANCED MESSAGE-----