<Page>

                                                                     Exhibit 4.3

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                          REGISTRATION RIGHTS AGREEMENT

                            Dated as of May 18, 2004

                                  By and Among

       GEO SUB CORP. and, after the Merger, GUNDLE/SLT ENVIRONMENTAL,INC.,
                                   as Issuers,

                                       and

                 After the Merger, the GUARANTORS listed herein

                                       and

                UBS SECURITIES LLC and JEFFERIES & COMPANY, INC.,
                              as Initial Purchasers

                     $150,000,000 11% Senior Notes due 2012


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                                TABLE OF CONTENTS

<Table>
<Caption>
                                                                                     PAGE
                                                                                     ----
<S>                                                                                  <C>
     1.   Section 1. Definitions.......................................................1
     2.   Section 2. Exchange Offer....................................................4
     3.   Section 3. Shelf Registration................................................7
     4.   Section 4. Liquidated Damages................................................8
     5.   Section 5. Registration Procedures...........................................9
     6.   Section 6. Registration Expenses............................................16
     7.   Section 7. Indemnification..................................................17
     8.   Section 8. Rules 144 and 144A...............................................20
     9.   Section 9. Underwritten Registrations.......................................20
     10.  Section 10. Miscellaneous...................................................20
          (a)     No Inconsistent Agreements..........................................20
          (b)     Adjustments Affecting Registrable Notes.............................20
          (c)     Amendments and Waivers..............................................21
          (d)     Notices.............................................................21
          (e)     Successors and Assigns..............................................22
          (f)     Counterparts........................................................22
          (g)     Headings............................................................22
          (h)     Governing Law.......................................................22
          (i)     Severability........................................................23
          (j)     Securities Held by the Issuer or Its Affiliates.....................23
          (k)     Third-Party Beneficiaries...........................................23
          (l)     Attorneys' Fees.....................................................23
          (m)     Company and Guarantors..............................................23
          (n)     Entire Agreement....................................................23

SIGNATURES...........................................................................S-1
</Table>

                                       -i-
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                          REGISTRATION RIGHTS AGREEMENT

             This Registration Rights Agreement (this "AGREEMENT") is dated as
of May 18, 2004, by and among GEO Sub Corp., a Delaware corporation (the
"ISSUER"), and after the Merger (as defined below), consistent with Section
10(m), Gundle/SLT Environmental, Inc., a Delaware corporation ("COMPANY"), and
GSE Lining Technology, Inc., a Delaware corporation, GSE International, Inc., a
Delaware corporation, and GSE Clay Lining Technology Co., a South Dakota general
partnership (collectively, the "GUARANTORS") on the one hand, and UBS Securities
LLC and Jefferies & Company, Inc. (the "INITIAL PURCHASERS"), on the other hand.

             This Agreement is entered into in connection with the Purchase
Agreement, dated as of May 13, 2004, by and among the Issuer, Company, the
Guarantors party thereto and the Initial Purchasers (the "PURCHASE AGREEMENT"),
relating to the offering of $150,000,000 aggregate principal amount of the
Issuer's 11% Senior Notes due 2012 (the "NOTES"). The execution and delivery of
this Agreement is a condition to the Initial Purchasers' obligation to purchase
the Notes under the Purchase Agreement.

             The Issuer has entered into a Plan and Agreement of Merger, dated
December 31, 2003, among the Issuer, Company and GEO Holdings Corp., a Delaware
corporation (the "PARENT"), pursuant to which the Issuer will merge with and
into Company and Company will be the surviving corporation and a direct, wholly
owned subsidiary of the Parent (the "MERGER"). As a result of the Merger,
Company will assume all of the obligations of the Issuer under this Agreement
and all references in the Agreement to the "Issuer" shall refer to Company.

             The parties hereby agree as follows:

     Section 1. DEFINITIONS

             As used in this Agreement, the following terms shall have the
following meanings:

             "ACTION" shall have the meaning set forth in Section 7(c) hereof.

             "ADVICE" shall have the meaning set forth in Section 5 hereof.

             "AGREEMENT" shall have the meaning set forth in the first
introductory paragraph hereto.

             "APPLICABLE PERIOD" shall have the meaning set forth in Section
2(b) hereof.

             "BOARD OF DIRECTORS" shall have the meaning set forth in Section 5
hereof.

             "BUSINESS DAY" shall mean a day that is not a Legal Holiday.

             "COMMISSION" shall mean the Securities and Exchange Commission.

             "COMPANY" shall have the meaning set forth in the first
introductory paragraph hereof.

             "DAY" shall mean a calendar day.

             "DAMAGES PAYMENT DATE" shall have the meaning set forth in Section
4(b) hereof.

             "DELAY PERIOD" shall have the meaning set forth in Section 5
hereof.

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                                       -2-

             "EFFECTIVENESS PERIOD" shall have the meaning set forth in Section
3(b) hereof.

             "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, as
amended, and the rules and regulations of the Commission promulgated thereunder.

             "EXCHANGE NOTES" shall have the meaning set forth in Section 2(a)
hereof.

             "EXCHANGE OFFER" shall have the meaning set forth in Section 2(a)
hereof.

             "EXCHANGE OFFER REGISTRATION STATEMENT" shall have the meaning set
forth in Section 2(a) hereof.

             "GUARANTORS" shall have the meaning set forth in the first
introductory paragraph hereof.

             "HOLDER" shall mean any holder of a Registrable Note or Registrable
Notes.

             "INDENTURE" shall mean the indenture, dated as of the Issue Date,
by and among the Issuer, Company, the Guarantors and U.S. Bank National
Association, as trustee, pursuant to which the Notes are being issued, as
amended or supplemented from time to time in accordance with the terms thereof.

             "INITIAL PURCHASER" shall have the meaning set forth in the first
introductory paragraph hereof.

             "INSPECTORS" shall have the meaning set forth in Section 5(n)
hereof.

             "ISSUE DATE" shall mean May 18, 2004, the date of original issuance
of the Notes.

             "ISSUER" shall have the meaning set forth in the introductory
paragraph hereto and shall also include the Issuer's permitted successors and
assigns.

             "LEGAL HOLIDAY" shall mean a Saturday, a Sunday or a day on which
banking institutions in New York, New York are required by law, regulation or
executive order to remain closed.

             "LIQUIDATED DAMAGES" shall have the meaning set forth in Section
4(a) hereof.

             "LOSSES" shall have the meaning set forth in Section 7(a) hereof.

             "MERGER" shall have the meaning set forth in the third introductory
paragraph hereof.

             "NASD" shall have the meaning set forth in Section 5(s) hereof.

             "NOTES" shall have the meaning set forth in the second introductory
paragraph hereto.

             "PARENT" shall have the meaning set forth in the second
introductory paragraph hereof.

             "PARTICIPANT" shall have the meaning set forth in Section 7(a)
hereof.

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                                       -3-

             "PARTICIPATING BROKER-DEALER" shall have the meaning set forth in
Section 2(b) hereof.

             "PERSON" shall mean an individual, corporation, partnership, joint
venture association, joint stock company, trust, unincorporated limited
liability company, government or any agency or political subdivision thereof or
any other entity.

             "PRIVATE EXCHANGE" shall have the meaning set forth in Section 2(b)
hereof.

             "PRIVATE EXCHANGE NOTES" shall have the meaning set forth in
Section 2(b) hereof.

             "PROSPECTUS" shall mean the prospectus included in any Registration
Statement (including, without limitation, any prospectus subject to completion
and a prospectus that includes any information previously omitted from a
prospectus filed as part of an effective registration statement in reliance upon
Rule 430A promulgated under the Securities Act), as amended or supplemented by
any prospectus supplement, and all other amendments and supplements to the
Prospectus, including post-effective amendments, and all material incorporated
by reference or deemed to be incorporated by reference in such Prospectus.

             "PURCHASE AGREEMENT" shall have the meaning set forth in the second
introductory paragraph hereof.

             "RECORDS" shall have the meaning set forth in Section 5(n) hereof.

             "REGISTRABLE NOTES" shall mean each Note upon its original issuance
and at all times subsequent thereto, each Exchange Note as to which Section
2(c)(iii) hereof is applicable upon original issuance and at all times
subsequent thereto and each Private Exchange Note upon original issuance thereof
and at all times subsequent thereto, in each case until (i) a Registration
Statement (other than, with respect to any Exchange Note as to which Section
2(c)(iii) hereof is applicable, the Exchange Offer Registration Statement)
covering such Note, Exchange Note or Private Exchange Note has been declared
effective by the Commission and such Note, Exchange Note or such Private
Exchange Note, as the case may be, has been disposed of in accordance with such
effective Registration Statement, (ii) such Note has been exchanged pursuant to
the Exchange Offer for an Exchange Note or Exchange Notes that may be resold
without restriction under state and federal securities laws, (iii) such Note,
Exchange Note or Private Exchange Note, as the case may be, ceases to be
outstanding for purposes of the Indenture or (iv) such Note, Exchange Note or
Private Exchange Note has been sold in compliance with Rule 144 or is salable
pursuant to Rule 144(k).

             "REGISTRATION DEFAULT" shall have the meaning set forth in Section
4(a) hereof.

             "REGISTRATION STATEMENT" shall mean any appropriate registration
statement of the Issuer covering any of the Registrable Notes filed with the
Commission under the Securities Act, and all amendments and supplements to any
such Registration Statement, including post-effective amendments, in each case
including the Prospectus contained therein, all exhibits thereto and all
material incorporated by reference therein.

             "REQUESTING PARTICIPATING BROKER-DEALER" shall have the meaning set
forth in Section 2(b) hereof.

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                                       -4-

             "RULE 144" shall mean Rule 144 promulgated under the Securities
Act, as such Rule may be amended from time to time, or any similar rule (other
than Rule 144A) or regulation hereafter adopted by the Commission providing for
offers and sales of securities made in compliance therewith resulting in offers
and sales by subsequent holders that are not affiliates of an issuer of such
securities being free of the registration and prospectus delivery requirements
of the Securities Act.

             "RULE 144A" shall mean Rule 144A promulgated under the Securities
Act, as such Rule may be amended from time to time, or any similar rule (other
than Rule 144) or regulation hereafter adopted by the Commission.

             "RULE 415" shall mean Rule 415 promulgated under the Securities
Act, as such Rule may be amended from time to time, or any similar rule or
regulation hereafter adopted by the Commission.

             "SECURITIES ACT" shall mean the Securities Act of 1933, as amended,
and the rules and regulations of the Commission promulgated thereunder.

             "SHELF FILING EVENT" shall have the meaning set forth in Section
2(c) hereof.

             "SHELF REGISTRATION" shall have the meaning set forth in Section
3(a) hereof.

             "SHELF REGISTRATION STATEMENT" shall mean a Registration Statement
filed in connection with a Shelf Registration.

             "TIA" shall mean the Trust Indenture Act of 1939, as amended.

             "TRUSTEE" shall mean the trustee under the Indenture and the
trustee (if any) under any Indenture governing the Exchange Notes and Private
Exchange Notes.

             "UNDERWRITTEN REGISTRATION or UNDERWRITTEN OFFERING" shall mean a
registration in which securities of the Issuer is sold to an underwriter for
reoffering to the public.

     Section 2. EXCHANGE OFFER

             (a)   The Issuer and the Guarantors shall (i) file a Registration
Statement (the "Exchange Offer Registration Statement") within 90 days after the
Issue Date with the Commission on an appropriate registration form with respect
to a registered offer (the "Exchange Offer") to exchange any and all of the
Registrable Notes for a like aggregate principal amount of notes (the "Exchange
Notes") that are identical in all material respects to the Notes (except that
the Exchange Notes shall not contain terms with respect to transfer restrictions
or Liquidated Damages upon a Registration Default), (ii) use their reasonable
best efforts to cause the Exchange Offer Registration Statement to be declared
effective under the Securities Act within 180 days after the Issue Date and
(iii) use their reasonable best efforts to consummate the Exchange Offer within
210 days after the Issue Date. Upon the Exchange Offer Registration Statement
being declared effective by the Commission, the Issuer and the Guarantors will
offer the Exchange Notes in exchange for surrender of the Notes. The Issuer and
the Guarantors shall keep the Exchange Offer open for not less than 30 days (or
longer if required by applicable law) after the date notice of the Exchange
Offer is mailed to Holders.

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                                       -5-

             Each Holder that participates in the Exchange Offer will be
required to represent to the Issuer and the Guarantors in writing that (i) any
Exchange Notes to be received by it will be acquired in the ordinary course of
its business, (ii) it has no arrangement or understanding with any Person to
participate in the distribution (within the meaning of the Securities Act) of
the Exchange Notes in violation of the provisions of the Securities Act or, if
it is an affiliate, it will comply with the registration and prospectus delivery
requirements of the Securities Act to the extent applicable, (iii) if such
Holder is not a broker-dealer, it is not engaged in, and does not intend to
engage in, a distribution of Exchange Notes, (iv) if such Holder is a
broker-dealer that will receive Exchange Notes for its own account in exchange
for Notes that were acquired as a result of market-making or other trading
activities, it will deliver a prospectus in connection with any resale of such
Exchange Notes and (v) such Holder has full power and authority to transfer the
Notes in exchange for the Exchange Notes and that the Issuer will acquire good
and unencumbered title thereto free and clear of any liens, restrictions,
charges or encumbrances and not subject to any adverse claims.

             (b)   The Issuer, the Guarantors and the Initial Purchasers
acknowledge that the staff of the Commission has taken the position that any
broker-dealer that elects to exchange Notes that were acquired by such
broker-dealer for its own account as a result of market-making or other trading
activities for Exchange Notes in the Exchange Offer (a "Participating
Broker-Dealer") may be deemed to be an "underwriter" within the meaning of the
Securities Act and must deliver a prospectus meeting the requirements of the
Securities Act in connection with any resale of such Exchange Notes (other than
a resale of an unsold allotment resulting from the original offering of the
Notes).

             The Issuer, the Guarantors and the Initial Purchasers also
acknowledge that the staff of the Commission has taken the position that if the
Prospectus contained in the Exchange Offer Registration Statement includes a
plan of distribution containing a statement to the above effect and the means by
which Participating Broker-Dealers may resell the Exchange Notes, without naming
the Participating Broker-Dealers or specifying the amount of Exchange Notes
owned by them, such Prospectus may be delivered by Participating Broker-Dealers
to satisfy their prospectus delivery obligations under the Securities Act in
connection with resales of Exchange Notes for their own accounts, so long as the
Prospectus otherwise meets the requirements of the Securities Act.

             In light of the foregoing, if requested by a Participating
Broker-Dealer (a "REQUESTING PARTICIPATING BROKER-DEALER"), the Issuer and the
Guarantors agree to use their reasonable best efforts to keep the Exchange Offer
Registration Statement continuously effective for a period not to exceed 180
days after the date on which the Exchange Registration Statement is declared
effective, or such longer period if extended pursuant to the last paragraph of
Section 5 hereof (such period, the "APPLICABLE PERIOD"), or such earlier date as
all Requesting Participating Broker-Dealers shall have notified the Issuer in
writing that such Requesting Participating Broker-Dealers have resold all
Exchange Notes acquired in the Exchange Offer. The Issuer and the Guarantors
shall include a plan of distribution in such Exchange Offer Registration
Statement that meets the requirements set forth in the preceding paragraph.

             If, prior to consummation of the Exchange Offer, the Initial
Purchasers or any Holder, as the case may be, holds any Notes acquired by it
that have, or that are reasonably likely to be determined to have, the status of
an unsold allotment in an initial distribution, or if any Holder is not entitled
to participate in the Exchange Offer, the Issuer upon the request of the Initial
Purchasers or any such Holder, as the case may be, shall simultaneously with the
delivery of the Exchange Notes in the Exchange Offer, issue and deliver to the
Initial Purchasers or any such Holder, as the case may be, in exchange (the
"PRIVATE EXCHANGE") for such Notes held by the Initial Purchasers or any such
Holder, as the case may be, a

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                                       -6-

like principal amount of notes (the "PRIVATE EXCHANGE NOTES") of the Issuer that
are identical in all material respects to the Exchange Notes except that the
Private Exchange Notes may be subject to restrictions on transfer and bear a
legend to such effect. The Private Exchange Notes shall be issued pursuant to
the same Indenture as the Exchange Notes and bear the same CUSIP number as the
Exchange Notes.

             For each Note surrendered in the Exchange Offer, the Holder will
receive an Exchange Note having a principal amount equal to that of the
surrendered Note. Interest on each Exchange Note and Private Exchange Note
issued pursuant to the Exchange Offer and in the Private Exchange will accrue
from the last interest payment date on which interest was paid on the Notes
surrendered in exchange therefor or, if no interest has been paid on the Notes,
from the Issue Date.

             Upon consummation of the Exchange Offer in accordance with this
Section 2, the Issuer and the Guarantors shall have no further registration
obligations other than the Issuer's and the Guarantors' continuing registration
obligations with respect to (i) Private Exchange Notes, (ii) Exchange Notes held
by Participating Broker-Dealers and (iii) Notes or Exchange Notes as to which
clause (c)(iii) of this Section 2 applies.

             In connection with the Exchange Offer, the Issuer and the
Guarantors shall:

             (1)   mail or cause to be mailed to each Holder entitled to
     participate in the Exchange Offer a copy of the Prospectus forming part of
     the Exchange Offer Registration Statement, together with an appropriate
     letter of transmittal (if any) and related documents;

             (2)   utilize the services of a depositary for the Exchange Offer
     with an address in the Borough of Manhattan, The City of New York;

             (3)   permit Holders to withdraw tendered Notes at any time prior
     to the close of business, New York time, on the last Business Day on which
     the Exchange Offer shall remain open; and

             (4)   otherwise comply in all material respects with all applicable
     laws, rules and regulations.

             As soon as practicable after the close of the Exchange Offer and
the Private Exchange, if any, the Issuer and the Guarantors shall:

             (1)   accept for exchange all Notes validly tendered and not
     validly withdrawn by the Holders pursuant to the Exchange Offer and the
     Private Exchange, if any;

             (2)   deliver or cause to be delivered to the Trustee for
     cancellation all Notes so accepted for exchange; and

             (3)   cause the Trustee to authenticate and deliver promptly to
each such Holder of Notes, Exchange Notes or Private Exchange Notes, as the case
may be, equal in principal amount to the Registrable Notes of such Holder so
accepted for exchange.

             The Exchange Offer and the Private Exchange shall not be subject to
any conditions, other than that (i) the Exchange Offer or Private Exchange, as
the case may be, does not violate applica-

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                                       -7-

ble law or any applicable interpretation of the staff of the Commission, (ii) no
action or proceeding shall have been instituted or threatened in any court or by
any governmental agency which might materially impair the ability of the Issuer
and the Guarantors to proceed with the Exchange Offer or the Private Exchange,
and no material adverse development shall have occurred in any existing action
or proceeding with respect to the Issuer or the Guarantors and (iii) all
governmental approvals shall have been obtained, which approvals the Issuer
deems necessary for the consummation of the Exchange Offer or Private Exchange.

             The Exchange Notes and the Private Exchange Notes shall be issued
under (i) the Indenture or (ii) an indenture identical in all material respects
to the Indenture (in either case, with such changes as are necessary to comply
with any requirements of the Commission to effect or maintain the qualification
thereof under the TIA) and which, in either case, has been qualified under the
TIA and shall provide that (a) the Exchange Notes shall not be subject to the
transfer restrictions set forth in the Indenture and (b) the Private Exchange
Notes shall be subject to the transfer restrictions set forth in the Indenture.
The Indenture or such indentures shall provide that the Exchange Notes, the
Private Exchange Notes and the Notes shall vote and consent together on all
matters as one class and that none of the Exchange Notes, the Private Exchange
Notes or the Notes will have the right to vote or consent as a separate class on
any matter.

             (c)   In the event that (i) any changes in law or the applicable
interpretations of the staff of the Commission do not permit the Issuer and the
Guarantors to effect the Exchange Offer, (ii) for any reason the Exchange Offer
is not consummated within 210 days after the Issue Date, (iii) any Holder, other
than the Initial Purchasers, is prohibited by law or the applicable
interpretations of the staff of the Commission from participating in the
Exchange Offer or does not receive Exchange Notes on the date of the exchange
that may be sold without restriction under state and federal securities laws
(other than due solely to the status of such holder as an affiliate of the
Issuer or any Guarantor within the meaning of the Securities Act) or (iv) the
Initial Purchaser so requests with respect to Notes or Private Exchange Notes
that have, or that are reasonably likely to be determined to have, the status of
unsold allotments in an initial distribution (each such event referred to in
clauses (i) through (iv) of this sentence, a "Shelf Filing Event"), then the
Issuer and the Guarantors shall file a Shelf Registration pursuant to Section 3
hereof.

     Section 3. SHELF REGISTRATION

             If at any time a Shelf Filing Event shall occur, then:

             (a)   Shelf Registration. The Issuer and the Guarantors shall file
with the Commission a Registration Statement for an offering to be made on a
continuous basis pursuant to Rule 415 covering all of the Registrable Notes not
exchanged in the Exchange Offer, Private Exchange Notes and Exchange Notes as to
which Section 2(c)(iii) is applicable (the "Shelf Registration"). The Issuer and
the Guarantors shall use their reasonable best efforts to file with the
Commission the Shelf Registration as promptly as practicable. The Shelf
Registration shall be on Form S-1 or another appropriate form permitting
registration of such Registrable Notes for resale by Holders in the manner or
manners designated by them (including, without limitation, one or more
underwritten offerings). The Issuer shall not permit any securities other than
the Registrable Notes to be included in the Shelf Registration.

             (b)   The Issuer and the Guarantors shall use their reasonable best
efforts (x) to cause the Shelf Registration to be declared effective under the
Securities Act on or prior to the later of 180 calendar days after the Issue
Date or 90 days after the Shelf Registration is required to be filed with the

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                                       -8-

Commission and (y) to keep the Shelf Registration continuously effective under
the Securities Act for the period ending on the date which is two years from the
Issue Date, subject to extension pursuant to the penultimate paragraph of
Section 5 hereof (the "Effectiveness Period"), or such shorter period ending
when all Registrable Notes covered by the Shelf Registration have been sold in
the manner set forth and as contemplated in the Shelf Registration; provided,
however, that (i) the Effectiveness Period in respect of the Shelf Registration
shall be extended to the extent required to permit dealers to comply with the
applicable prospectus delivery requirements of Rule 174 under the Securities Act
and as otherwise provided herein and (ii) the Issuer and the Guarantors may
suspend the effectiveness of the Shelf Registration Statement by written notice
to the Holders solely as a result of the filing of a post-effective amendment to
the Shelf Registration Statement to incorporate annual audited financial
information with respect to the Issuer where such post-effective amendment is
not yet effective and needs to be declared effective to permit Holders to use
the related Prospectus.

             (c)   Supplements and Amendments. The Issuer and the Guarantors
agree to supplement or make amendments to the Shelf Registration Statement as
and when required by the rules, regulations or instructions applicable to the
registration form used for such Shelf Registration Statement or by the
Securities Act or rules and regulations thereunder for shelf registration, or if
reasonably requested by the Holders of a majority in aggregate principal amount
of the Registrable Notes covered by such Registration Statement or by any
underwriter of such Registrable Notes.

     Section 4. LIQUIDATED DAMAGES

             (a)   The Issuer, the Guarantors and the Initial Purchasers agree
that the Holders will suffer damages if the Issuer and the Guarantors fail to
fulfill their respective obligations under Section 2 or Section 3 hereof and
that it would not be feasible to ascertain the extent of such damages with
precision. Accordingly, the Issuer and the Guarantors agree that, subject to the
penultimate paragraph of Section 5, if:

             (i)   the Exchange Offer Registration Statement is not filed with
     the Commission on or prior to the 90th day following the Issue Date or, if
     that filing date is not a Business Day, the next day that is a Business
     Day,

             (ii)  the Exchange Offer Registration Statement is not declared
     effective on or prior to the 180th day following the Issue Date or, if that
     effectiveness day is not a Business Day, the next day that is a Business
     Day,

             (iii) the Exchange Offer is not consummated on or prior to the
     210th day following the Issue Date, or, if that day is not a Business Day,
     the next day that is a Business Day; or

             (iv)  the Shelf Registration Statement is required to be filed but
     is not declared effective by the later of 180 calendar days after the Issue
     Date or 90 days after the Shelf Registration is required to be filed with
     the Commission, or, if either such day is not a Business Day, the next day
     that is a Business Day or is declared effective by such date but thereafter
     ceases to be effective or usable, except if the Shelf Registration ceases
     to be effective or usable as specifically permitted by the penultimate
     paragraph of Section 5 hereof (each such event referred to in clauses (i)
     through (iv) a "REGISTRATION DEFAULT"), liquidated damages in the form of
     additional cash interest ("LIQUIDATED DAMAGES") will accrue on the affected
     Notes and the affected Exchange Notes, as applicable. The rate of
     Liquidated Damages will be 0.25% per annum for the

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                                       -9-

     first 90-day period immediately following the occurrence of a Registration
     Default, increasing by an additional 0.25% per annum with respect to each
     subsequent 90-day period up to a maximum amount of additional interest of
     1.00% per annum, from and including the date on which any such Registration
     Default shall occur to, but excluding, the earlier of (1) the date on which
     all Registration Defaults have been cured or (2) the date on which all the
     Notes and Exchange Notes otherwise become freely transferable by Holders
     other than affiliates of the Issuer without further registration under the
     Securities Act.

Notwithstanding the foregoing, (1) the amount of Liquidated Damages payable
shall not increase because more than one Registration Default has occurred and
is pending and (2) a Holder of Notes or Exchange Notes who is not entitled to
the benefits of the Shelf Registration Statement (I.E., such Holder has not
elected to include information) shall not be entitled to Liquidated Damages with
respect to a Registration Default that pertains to the Shelf Registration
Statement.

             (b)   Any amounts of Liquidated Damages due pursuant to clauses
(a)(i), (a)(ii), (a)(iii) or (a)(iv) of this Section 4 will be payable in cash
semi-annually on each May 15 and November 15 (each a "Damages Payment Date"),
commencing with the first such date occurring after any such Liquidated Damages
commence to accrue, to Holders to whom regular interest is payable on such
Damages Payment Date with respect to Notes that are Registrable Securities. The
amount of Liquidated Damages for Registrable Notes will be determined by
multiplying the applicable rate of Liquidated Damages by the aggregate principal
amount of all such Registrable Notes outstanding on the Damages Payment Date
following such Registration Default in the case of the first such payment of
Liquidated Damages with respect to a Registration Default (and thereafter at the
next succeeding Damages Payment Date until the cure of such Registration
Default), multiplied by a fraction, the numerator of which is the number of days
such Liquidated Damages rate was applicable during such period (determined on
the basis of a 360-day year comprised of twelve 30-day months and, in the case
of a partial month, the actual number of days elapsed), and the denominator of
which is 360.

     Section 5. REGISTRATION PROCEDURES

             In connection with the filing of any Registration Statement
pursuant to Section 2 or 3 hereof, the Issuer and the Guarantors shall effect
such registrations to permit the sale of the securities covered thereby in
accordance with the intended method or methods of disposition thereof, and
pursuant thereto and in connection with any Registration Statement filed by the
Issuer and the Guarantors hereunder, each of the Issuer and the Guarantors
shall:

             (a)   Prepare and file with the Commission the Registration
Statement or Registration Statements prescribed by Section 2 or 3 hereof, and
use its reasonable best efforts to cause each such Registration Statement to
become effective and remain effective as provided herein; provided, however,
that if (1) such filing is pursuant to Section 3 hereof, or (2) a Prospectus
contained in the Exchange Offer Registration Statement filed pursuant to Section
2 hereof is required to be delivered under the Securities Act by any
Participating Broker-Dealer who seeks to sell Exchange Notes during the
Applicable Period relating thereto, before filing any Registration Statement or
Prospectus or any amendments or supplements thereto, the Issuer and the
Guarantors shall furnish to and afford the Holders of the Registrable Notes
covered by such Registration Statement or each such Participating Broker-Dealer,
as the case may be, its counsel (if such counsel is known to the Issuer) and the
managing underwriters, if any, a reasonable opportunity to review copies of all
such documents (including copies of any documents to be incorporated by
reference therein and all exhibits thereto) proposed to be filed (in each case
at least five Busi-

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                                      -10-

ness Days prior to such filing or such later date as is reasonable under the
circumstances). The Issuer and the Guarantors shall not file any Registration
Statement or Prospectus or any amendments or supplements thereto if the Holders
of a majority in aggregate principal amount of the Registrable Notes covered by
such Registration Statement, or any such Participating Broker-Dealer, as the
case may be, its counsel, or the managing underwriters, if any, shall reasonably
object on a timely basis.

             (b)   Prepare and file with the Commission such amendments and
post-effective amendments to each Shelf Registration Statement or Exchange Offer
Registration Statement, as the case may be, as may be necessary to keep such
Registration Statement continuously effective for the Effectiveness Period or
the Applicable Period, as the case may be; cause the related Prospectus to be
supplemented by any Prospectus supplement required by applicable law, and as so
supplemented to be filed pursuant to Rule 424 (or any similar provisions then in
force) promulgated under the Securities Act; and comply with the provisions of
the Securities Act and the Exchange Act applicable to it with respect to the
disposition of all securities covered by such Registration Statement as so
amended or in such Prospectus as so supplemented and with respect to the
subsequent resale of any securities being sold by a Participating Broker-Dealer
covered by any such Prospectus, in each case, in accordance with the intended
methods of distribution set forth in such Registration Statement or Prospectus,
as so amended.

             (c)   If (1) a Shelf Registration is filed pursuant to Section 3
hereof, or (2) a Prospectus contained in the Exchange Offer Registration
Statement filed pursuant to Section 2 hereof is required to be delivered under
the Securities Act by any Participating Broker-Dealer who seeks to sell Exchange
Notes during the Applicable Period relating thereto from whom the Issuer has
received written notice that such Broker-Dealer will be a Participating
Broker-Dealer in the applicable Exchange Offer, notify the selling Holders of
Registrable Notes, or each such Participating Broker-Dealer, as the case may be,
their counsel and the managing underwriters, if any, as promptly as possible,
and, if requested by any such Person, confirm such notice in writing, (i) when a
Prospectus or any Prospectus supplement or post-effective amendment has been
filed, and, with respect to a Registration Statement or any post-effective
amendment, when the same has become effective under the Securities Act
(including in such notice a written statement that any Holder may, upon request,
obtain, at the sole expense of the Issuer, one conformed copy of such
Registration Statement or post-effective amendment including financial
statements and schedules, documents incorporated or deemed to be incorporated by
reference and exhibits), (ii) of the issuance by the Commission of any stop
order suspending the effectiveness of a Registration Statement or of any order
preventing or suspending the use of any preliminary prospectus or the initiation
of any proceedings for that purpose, (iii) if at any time when a Prospectus is
required by the Securities Act to be delivered in connection with sales of the
Registrable Notes or resales of Exchange Notes by Participating Broker-Dealers,
the representations and warranties of the Issuer or the Guarantors contained in
any agreement (including any underwriting agreement) contemplated by Section
5(m)(i) hereof cease to be true and correct in all material respects, (iv) of
the receipt by the Issuer or the Guarantors of any notification with respect to
the suspension of the qualification or exemption from qualification of a
Registration Statement or any of the Registrable Notes or the Exchange Notes for
offer or sale in any jurisdiction, or the initiation or threatening of any
proceeding for such purpose, (v) of the happening of any event, the existence of
any condition or any information becoming known to the Issuer or any Guarantor
that makes any statement made in such Registration Statement or related
Prospectus or any document incorporated or deemed to be incorporated therein by
reference untrue in any material respect or that requires the making of any
changes in or amendments or supplements to such Registration Statement,
Prospectus or documents so that, in the case of the Registration Statement, it
will not contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary to make the statements
therein not misleading, and that in the case of the Prospectus, it will not
contain any untrue

<Page>

                                      -11-

statement of a material fact or omit to state any material fact required to be
stated therein or necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading, and (vi) of the
Issuer's determination that a post-effective amendment to a Registration
Statement would be appropriate.

             (d)   If (1) a Shelf Registration is filed pursuant to Section 3
hereof, or (2) a Prospectus contained in the Exchange Offer Registration
Statement filed pursuant to Section 2 hereof is required to be delivered under
the Securities Act by any Participating Broker-Dealer who seeks to sell Exchange
Notes during the Applicable Period, use its reasonable best efforts to prevent
the issuance of any order suspending the effectiveness of a Registration
Statement or of any order preventing or suspending the use of a Prospectus or
suspending the qualification (or exemption from qualification) of any of the
Registrable Notes or the Exchange Notes, as the case may be, for sale in any
jurisdiction, and, if any such order is issued, to use its reasonable best
efforts to obtain the withdrawal of any such order at the earliest practicable
moment.

             (e)   If (1) a Shelf Registration is filed pursuant to Section 3
hereof or (2) a Prospectus contained in the Exchange Offer Registration
Statement filed pursuant to Section 2 hereof is required to be delivered under
the Securities Act by any Participating Broker-Dealer who seeks to sell Exchange
Notes during the Applicable Period and if reasonably requested by the managing
underwriter or underwriters (if any), the Holders of a majority in aggregate
principal amount of the Registrable Notes covered by such Registration Statement
or any Participating Broker-Dealer, as the case may be, (i) promptly incorporate
in such Registration Statement or Prospectus a prospectus supplement or
post-effective amendment such information as the managing underwriter or
underwriters (if any), such Holders or any Participating Broker-Dealer, as the
case may be (based upon advice of counsel), determine is reasonably necessary to
be included therein and (ii) make all required filings of such prospectus
supplement or such post-effective amendment as soon as practicable after the
Issuer has received notification of the matters to be incorporated in such
prospectus supplement or post-effective amendment; provided, however, that the
Issuer and the Guarantors shall not be required to take any action hereunder
that would, in the written opinion of counsel to the Issuer and the Guarantors,
violate applicable laws.

             (f)   If (1) a Shelf Registration is filed pursuant to Section 3
hereof or (2) a Prospectus contained in the Exchange Offer Registration
Statement filed pursuant to Section 2 hereof is required to be delivered under
the Securities Act by any Participating Broker-Dealer who seeks to sell Exchange
Notes during the Applicable Period, furnish to each selling Holder of
Registrable Notes or each such Participating Broker-Dealer, as the case may be,
who so requests, its counsel and each managing underwriter, if any, at the sole
expense of the Issuer, one conformed copy of the Registration Statement or
Registration Statements and each post-effective amendment thereto, including
financial statements and schedules, and, if requested, all documents
incorporated or deemed to be incorporated therein by reference and all exhibits.

             (g)   If (1) a Shelf Registration is filed pursuant to Section 3
hereof, or (2) a Prospectus contained in the Exchange Offer Registration
Statement filed pursuant to Section 2 hereof is required to be delivered under
the Securities Act by any Participating Broker-Dealer who seeks to sell Exchange
Notes during the Applicable Period, deliver to each selling Holder of
Registrable Notes or each such Participating Broker-Dealer, as the case may be,
its respective counsel, and the underwriters, if any, at the sole expense of the
Issuer, as many copies of the Prospectus or Prospectuses (including each form of
preliminary prospectus) and each amendment or supplement thereto and any
documents incorporated by reference therein as such Persons may reasonably
request; and, subject to the last paragraph of this Section

<Page>

                                      -12-

5, the Issuer hereby consents to the use of such Prospectus and each amendment
or supplement thereto by each of the selling Holders of Registrable Notes or
each such Participating Broker-Dealer, as the case may be, and the underwriters
or agents, if any, and dealers (if any), in connection with the offering and
sale of the Registrable Notes covered by, or the sale by Participating
Broker-Dealers of the Exchange Notes pursuant to, such Prospectus and any
amendment or supplement thereto.

             (h)   Prior to any public offering of Registrable Notes or Exchange
Notes or any delivery of a Prospectus contained in the Exchange Offer
Registration Statement by any Participating Broker-Dealer who seeks to sell
Exchange Notes during the Applicable Period, use its reasonable best efforts to
register or qualify, and to cooperate with the selling Holders of Registrable
Notes or each such Participating Broker-Dealer, as the case may be, the managing
underwriter or underwriters, if any, and its respective counsel in connection
with the registration or qualification (or exemption from such registration or
qualification) of such Registrable Notes or Exchange Notes, as the case may be,
for offer and sale under the securities or Blue Sky laws of such jurisdictions
within the United States as any selling Holder, Participating Broker-Dealer, or
the managing underwriter or underwriters reasonably request; provided, however,
that where Exchange Notes or Registrable Notes are offered other than through an
underwritten offering, the Issuer agrees to use its reasonable best efforts to
cause the Issuer's counsel to perform Blue Sky investigations and file
registrations and qualifications required to be filed pursuant to this Section
5(h); keep each such registration or qualification (or exemption therefrom)
effective during the period such Registration Statement is required to be kept
effective and do any and all other acts or things reasonably necessary or
advisable to enable the disposition in such jurisdictions of such Exchange Notes
or Registrable Notes covered by the applicable Registration Statement; provided,
however, that none of the Issuer or the Guarantors shall be required to (A)
qualify generally to do business in any jurisdiction where it is not then so
qualified, (B) take any action that would subject it to general service of
process in any such jurisdiction where it is not then so subject or (C) subject
itself to taxation in excess of a nominal dollar amount in any such jurisdiction
where it is not then so subject.

             (i)   If a Shelf Registration is filed pursuant to Section 3
hereof, cooperate with the selling Holders of Registrable Notes and the managing
underwriter or underwriters, if any, to facilitate the timely preparation and
delivery of certificates representing Registrable Notes to be sold, which
certificates shall not bear any restrictive legends and shall be in a form
eligible for deposit with The Depository Trust Company and enable such
Registrable Notes to be in such denominations and registered in such names as
the managing underwriter or underwriters, if any, or selling Holders may request
at least five Business Days prior to any sale of such Registrable Notes or
Exchange Notes.

             (j)   Use its reasonable best efforts to cause the Registrable
Notes or Exchange Notes covered by any Registration Statement to be registered
with or approved by such other governmental agencies or authorities as may be
reasonably necessary to enable the seller or sellers thereof or the underwriter
or underwriters, if any, to consummate the disposition of such Registrable Notes
or Exchange Notes, except as may be required solely as a consequence of the
nature of such selling Holder's business, in which case the Issuer and the
Guarantors will cooperate in all reasonable respects with the filing of such
Registration Statement and the granting of such approvals.

             (k)   If (1) a Shelf Registration is filed pursuant to Section 3
hereof, or (2) a Prospectus contained in the Exchange Offer Registration
Statement filed pursuant to Section 2 hereof is required to be delivered under
the Securities Act by any Participating Broker-Dealer who seeks to sell Exchange
Notes during the Applicable Period, upon the occurrence of any event
contemplated by Section 5(c)(v) or 5(c)(vi) hereof, as promptly as practicable
prepare and (subject to Section 5(a) and the penultimate para-

<Page>

                                      -13-

graph of this Section 5) file with the Commission, at the sole expense of the
Issuer, a supplement or post-effective amendment to the Registration Statement
or a supplement to the related Prospectus or any document incorporated or deemed
to be incorporated therein by reference, or file any other required document so
that, as thereafter delivered to the purchasers of the Registrable Notes being
sold thereunder or to the purchasers of the Exchange Notes to whom such
Prospectus will be delivered by a Participating Broker-Dealer, any such
Prospectus will not contain an untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the
statements therein, in the light of the circumstances under which they were
made, not misleading.

             (l)   Prior to the effective date of the first Registration
Statement relating to the Registrable Notes, (i) provide the Trustee with
certificates for the Registrable Notes in a form eligible for deposit with The
Depository Trust Company and (ii) provide a CUSIP number for the Registrable
Notes.

             (m)   In connection with any underwritten offering of Registrable
Notes pursuant to a Shelf Registration, enter into an underwriting agreement as
is customary in underwritten offerings of debt securities similar to the Notes
and take all such other actions as are reasonably requested by the managing
underwriter or underwriters in order to expedite or facilitate the registration
or the disposition of such Registrable Notes and, in such connection, (i) make
such representations and warranties to, and covenants with, the underwriters
with respect to the business of the Issuer, the Guarantors and their respective
subsidiaries, as then conducted (including any acquired business, properties or
entity, if applicable), and the Registration Statement, Prospectus and
documents, if any, incorporated or deemed to be incorporated by reference
therein, in each case, as are customarily made by issuers to underwriters in
underwritten offerings of debt securities similar to the Notes, and confirm the
same in writing if and when requested; (ii) use its reasonable best efforts to
obtain the written opinions of counsel to the Issuer and the Guarantors and
written updates thereof in form, scope and substance reasonably satisfactory to
the managing underwriter or underwriters, addressed to the underwriters covering
the matters customarily covered in opinions requested in underwritten offerings
and such other matters as may be reasonably requested by the managing
underwriter or underwriters; (iii) use its reasonable best efforts to obtain
"cold comfort" letters and updates thereof in form, scope and substance
reasonably satisfactory to the managing underwriter or underwriters from the
independent certified public accountants of the Issuer and the Guarantors (and,
if necessary, any other independent certified public accountants of any
subsidiary of the Issuer or any Guarantor or of any business acquired by the
Issuer or any Guarantor for which financial statements and financial data are,
or are required to be, included or incorporated by reference in the Registration
Statement), addressed to each of the underwriters, such letters to be in
customary form and covering matters of the type customarily covered in "cold
comfort" letters in connection with underwritten offerings; and (iv) if an
underwriting agreement is entered into, the same shall contain indemnification
provisions and procedures no less favorable than those set forth in Section 7
hereof (or such other provisions and procedures acceptable to Holders of a
majority in aggregate principal amount of Registrable Notes covered by such
Registration Statement and the managing underwriter or underwriters or agents)
with respect to all parties to be indemnified pursuant to said Section; provided
that the Issuer and the Guarantors shall not be required to provide
indemnification to any underwriter selected in accordance with the provisions of
Section 9 hereof with respect to information relating to such underwriter
furnished in writing to the Issuer and the Guarantors by or on behalf of such
underwriter expressly for inclusion in such Registration Statement. The above
shall be done at each closing under such underwriting agreement, or as and to
the extent required thereunder.

             (n)   If (1) a Shelf Registration is filed pursuant to Section 3
hereof or (2) a Prospectus contained in the Exchange Offer Registration
Statement filed pursuant to Section 2 hereof is required to

<Page>

                                      -14-

be delivered under the Securities Act by any Participating Broker-Dealer who
seeks to sell Exchange Notes during the Applicable Period, make available for
inspection by any selling Holder of such Registrable Notes being sold or each
such Participating Broker-Dealer, as the case may be, any underwriter
participating in any such disposition of Registrable Notes, if any, and any
attorney, accountant or other agent retained by any such selling Holder or each
such Participating Broker-Dealer, as the case may be, or underwriter
(collectively, the "Inspectors"), at the offices where normally kept, during
reasonable business hours, all financial and other records, pertinent corporate
documents and instruments of the Issuer and its subsidiaries (collectively, the
"Records") as shall be reasonably necessary to enable them to exercise any
applicable due diligence responsibilities, and cause the officers, directors and
employees of the Issuer, the Guarantors and their respective subsidiaries to
supply all information reasonably requested by any such Inspector in connection
with such Registration Statement and Prospectus. Each Inspector shall agree in
writing that it will keep the Records confidential and that it will not
disclose, or use in connection with any market transactions in violation of any
applicable securities laws, any Records that the Issuer determines, in good
faith, to be confidential and that it notifies the Inspectors in writing are
confidential unless (i) the disclosure of such Records is necessary to avoid or
correct a misstatement or omission in such Registration Statement or Prospectus,
(ii) the release of such Records is ordered pursuant to a subpoena or other
order from a court of competent jurisdiction, (iii) disclosure of such
information is necessary or advisable in the opinion of counsel for an Inspector
in connection with any action, claim, suit or proceeding, directly or
indirectly, involving or potentially involving such Inspector and arising out
of, based upon, relating to, or involving this Agreement or the Purchase
Agreement, or any transactions contemplated hereby or thereby or arising
hereunder or thereunder, or (iv) the information in such Records has been made
generally available to the public; provided, however, that (i) each Inspector
shall agree to use reasonable best efforts to provide notice to the Issuer of
the potential disclosure of any information by such Inspector pursuant to clause
(i), (ii) or (iii) of this sentence to permit the Issuer to obtain a protective
order (or waive the provisions of this paragraph (n)) and (ii) each such
Inspector shall take such actions as are reasonably necessary to protect the
confidentiality of such information (if practicable) to the extent such action
is otherwise not inconsistent with, an impairment of or in derogation of the
rights and interests of the Holder or any Inspector.

             (o)   Provide an indenture trustee for the Registrable Notes or the
Exchange Notes, as the case may be, and cause the Indenture or the trust
indenture provided for in Section 2(b) hereof to be qualified under the TIA not
later than the effective date of the Exchange Offer or the first Registration
Statement relating to the Registrable Notes; and in connection therewith,
cooperate with the trustee under any such indenture and the Holders of the
Registrable Notes or Exchange Notes, as applicable, to effect such changes to
such indenture as may be required for such indenture to be so qualified in
accordance with the terms of the TIA; and execute, and use its reasonable best
efforts to cause such trustee to execute, all documents as may be required to
effect such changes, and all other forms and documents required to be filed with
the Commission to enable such indenture to be so qualified in a timely manner.

             (p)   Comply with all applicable rules and regulations of the
Commission and make generally available to the Issuer's securityholders earnings
statements satisfying the provisions of Section 11(a) of the Securities Act and
Rule 158 thereunder (or any similar rule promulgated under the Securities Act)
no later than 45 days after the end of any 12-month period (or 90 days after the
end of any 12-month period if such period is a fiscal year) (i) commencing at
the end of any fiscal quarter in which Registrable Notes or Exchange Notes are
sold to underwriters in a firm commitment or best efforts underwritten offering
and (ii) if not sold to underwriters in such an offering, commencing on the
first day of the first fiscal quarter of the Issuer after the effective date of
a Registration Statement, which statements shall cover said 12-month periods
consistent with the requirements of Rule 158.

<Page>

                                      -15-

             (q)   Upon the request of a Holder, upon consummation of the
Exchange Offer or a Private Exchange, use its reasonable best efforts to obtain
an opinion of counsel to the Issuer, in a form customary for underwritten
transactions, addressed to the Trustee for the benefit of all Holders of
Registrable Notes participating in the Exchange Offer or the Private Exchange,
as the case may be, that the Exchange Notes or Private Exchange Notes, as the
case may be, and the related indenture constitute legal, valid and binding
obligations of the Issuer, enforceable against the Issuer in accordance with its
respective terms, subject to customary exceptions and qualifications.

             (r)   If the Exchange Offer or a Private Exchange is to be
consummated, upon delivery of the Registrable Notes by Holders to the Issuer (or
to such other Person as directed by the Issuer) in exchange for the Exchange
Notes or the Private Exchange Notes, as the case may be, mark, or cause to be
marked, on such Registrable Notes that such Registrable Notes are being
cancelled in exchange for the Exchange Notes or the Private Exchange Notes, as
the case may be; provided that in no event shall such Registrable Notes be
marked as paid or otherwise satisfied.

             (s)   Cooperate with each seller of Registrable Notes covered by
any Registration Statement and each underwriter, if any, participating in the
disposition of such Registrable Notes and their respective counsel in connection
with any filings required to be made with the National Association of Securities
Dealers, Inc. (the "NASD").

             (t)   Use its reasonable best efforts to take all other steps
reasonably necessary or advisable to effect the registration of the Exchange
Notes and/or Registrable Notes covered by a Registration Statement contemplated
hereby.

             The Issuer may require each seller of Registrable Notes or Exchange
Notes as to which any registration is being effected to furnish to the Issuer
such information regarding such seller and the distribution of such Registrable
Notes or Exchange Notes as the Issuer may, from time to time, reasonably
request. The Issuer may exclude from such registration the Registrable Notes of
any seller so long as such seller fails to furnish such information within a
reasonable time after receiving such request and in the event of such an
exclusion, the Issuer shall have no further obligation under this Agreement
(including, without limitation, the obligations under Section 4) with respect to
such seller or any subsequent Holder of such Registrable Notes. Each seller as
to which any Shelf Registration is being effected agrees to furnish promptly to
the Issuer all information required to be disclosed in order to make any
information previously furnished to the Issuer by such seller not materially
misleading.

             If any such Registration Statement refers to any Holder by name or
otherwise as the holder of any securities of the Issuer or the Guarantors, then
such Holder shall have the right to require (i) the insertion therein of
language, in form and substance reasonably satisfactory to such Holder, to the
effect that the holding by such Holder of such securities is not to be construed
as a recommendation by such Holder of the investment quality of the securities
covered thereby and that such holding does not imply that such Holder will
assist in meeting any future financial requirements of the Issuer, or (ii) in
the event that such reference to such Holder by name or otherwise is not
required by the Securities Act or any similar federal statute then in force, the
deletion of the reference to such Holder in any amendment or supplement to the
applicable Registration Statement filed or prepared subsequent to the time that
such reference ceases to be required.

             Each Holder of Registrable Notes and each Participating
Broker-Dealer agrees by acquisition of such Registrable Notes or Exchange Notes
that, upon actual receipt of any notice from the Issuer

<Page>

                                      -16-

(x) of the happening of any event of the kind described in Section 5(c)(ii),
5(c)(iii), 5(c)(iv), or 5(c)(v) hereof, or (y) that the Board of Directors of
the Issuer (the "BOARD OF DIRECTORS") has resolved that the Issuer has a bona
fide business purpose for doing so, then the Issuer may delay the filing or the
effectiveness of the Exchange Offer Registration Statement or the Shelf
Registration Statement (if not then filed or effective, as applicable) and shall
not be required to maintain the effectiveness thereof or amend or supplement the
Exchange Offer Registration Statement or the Shelf Registration, in all cases,
for a period (a "DELAY PERIOD") expiring upon the earlier to occur of (i) in the
case of the immediately preceding clause (x), such Holder's or Participating
Broker-Dealer's receipt of the copies of the supplemented or amended Prospectus
contemplated by Section 5(k) hereof or until it is advised in writing (the
"ADVICE") by the Issuer that the use of the applicable Prospectus may be
resumed, and has received copies of any amendments or supplements thereto or
(ii) in the case of the immediately preceding clause (y), the date which is the
earlier of (A) the date on which such business purpose ceases to interfere with
the Issuer's obligations to file or maintain the effectiveness of any such
Registration Statement pursuant to this Agreement or (B) 60 days after the
Issuer notifies the Holders of such good faith determination. There shall not be
more than 60 days of Delay Periods during any 12-month period. Each of the
Effectiveness Period and the Applicable Period, if applicable, shall be extended
by the number of days during any Delay Period. Any Delay Period will not alter
the obligations of the Issuer and the Guarantors to pay Liquidated Damages under
the circumstances set forth in Section 4 hereof.

             In the event of any Delay Period pursuant to clause (y) of the
preceding paragraph, notice shall be given as soon as practicable after the
Board of Directors makes such a determination of the need for a Delay Period and
shall state, to the extent practicable, an estimate of the duration of such
Delay Period and shall advise the recipient thereof of the agreement of such
Holder provided in the next succeeding sentence. Each Holder, by his acceptance
of any Registrable Note, agrees that during any Delay Period, each Holder will
discontinue disposition of such Notes or Exchange Notes covered by such
Registration Statement or Prospectus or Exchange Notes to be sold by such Holder
or Participating Broker-Dealer, as the case may be.

     Section 6. REGISTRATION EXPENSES

             All fees and expenses incident to the performance of or compliance
with this Agreement by the Issuer and each of the Guarantors (other than any
underwriting discounts or commissions) shall be borne by the Issuer and each of
the Guarantors, whether or not the Exchange Offer Registration Statement or the
Shelf Registration is filed or becomes effective or the Exchange Offer is
consummated, including, without limitation, (i) all registration and filing fees
(including, without limitation, (A) fees with respect to filings required to be
made with the NASD in connection with an underwritten offering and (B) fees and
expenses of compliance with state securities or Blue Sky laws (including,
without limitation, reasonable fees and disbursements of counsel in connection
with Blue Sky qualifications of the Registrable Notes or Exchange Notes and
determination of the eligibility of the Registrable Notes or Exchange Notes for
investment under the laws of such jurisdictions (x) where the holders of
Registrable Notes are located, in the case of an Exchange Offer, or (y) as
provided in Section 5(h) hereof, in the case of a Shelf Registration or in the
case of Exchange Notes to be sold by a Participating Broker-Dealer during the
Applicable Period)), (ii) printing expenses, including, without limitation,
expenses of printing certificates for Registrable Notes or Exchange Notes in a
form eligible for deposit with The Depository Trust Company and of printing
prospectuses if the printing of prospectuses is requested by the managing
underwriter or underwriters, if any, or by the Holders of a majority in
aggregate principal amount of the Registrable Notes included in any Registration
Statement or in respect of Exchange Notes to be sold by any Participating
Broker-Dealer during the Applicable Period, as the case may be, (iii) messenger,
telephone

<Page>

                                      -17-

and delivery expenses, (iv) fees and disbursements of counsel for the Issuer and
the Guarantors and reasonable fees and disbursements of one special counsel for
all of the sellers of Registrable Notes (exclusive of any counsel retained
pursuant to Section 7 hereof), (v) fees and disbursements of all independent
certified public accountants referred to in Section 5(m)(iii) hereof (including,
without limitation, the expenses of any special audit and "cold comfort" letters
required by or incident to such performance), (vi) Securities Act liability
insurance, if the Issuer or any Guarantor desires such insurance, (vii) fees and
expenses of all other Persons retained by the Issuer or any Guarantor, (viii)
internal expenses of the Issuer and the Guarantors (including, without
limitation, all salaries and expenses of officers and employees of the Issuer
and each Guarantor performing legal or accounting duties), (ix) the expense of
any annual audit, (x) the fees and expenses incurred in connection with the
listing of the securities to be registered on any securities exchange, and the
obtaining of a rating of the securities, in each case, if applicable, and (xi)
the expenses relating to printing, word processing and distributing all
Registration Statements, underwriting agreements, indentures and any other
documents necessary in order to comply with this Agreement. Notwithstanding the
foregoing or anything to the contrary, each Holder shall pay all underwriting
discounts and commissions of any underwriters with respect to any Registrable
Notes sold by or on behalf of it.

     Section 7. INDEMNIFICATION

             (a)   The Issuer and each Guarantor, jointly and severally, agree
to indemnify and hold harmless each Holder of Registrable Notes and each
Participating Broker-Dealer selling Exchange Notes during the Applicable Period,
each Person, if any, who controls any such Person within the meaning of Section
15 of the Securities Act or Section 20(a) of the Exchange Act, the agents,
employees, officers and directors of each Holder and each such Participating
Broker-Dealer and the agents, employees, officers and directors of any such
controlling Person (each, a "Participant") from and against any and all losses,
liabilities, claims, damages and expenses (including, but not limited to,
reasonable attorneys' fees and any and all reasonable out-of-pocket expenses
actually incurred in investigating, preparing or defending against any
litigation, commenced or threatened, or any claim whatsoever, and any and all
reasonable amounts paid in settlement of any claim or litigation (in the manner
set forth in clause (c) below)) (collectively, "Losses") to which they or any of
them may become subject under the Securities Act, the Exchange Act or otherwise
insofar as such Losses (or actions in respect thereof) arise out of or are based
upon any untrue statement or alleged untrue statement of a material fact
contained in any Registration Statement (or any amendment thereto) or Prospectus
(as amended or supplemented if the Issuer shall have furnished any amendments or
supplements thereto) or any preliminary prospectus, or caused by, arising out of
or based upon any omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein, in
the case of the Prospectus, in the light of the circumstances under which they
were made, not misleading, provided that (i) the foregoing indemnity shall not
be available to any Participant insofar as such Losses are caused by any untrue
statement or omission or alleged untrue statement or omission made in reliance
upon and in conformity with information relating to such Participant furnished
to the Issuer in writing by or on behalf of such Participant expressly for use
therein, and (ii) that the foregoing indemnity with respect to any preliminary
prospectus shall not inure to the benefit of any Participant from whom the
Person asserting such Losses purchased Registrable Notes if (x) it is
established in the related proceeding that such Participant failed to send or
give a copy of the Prospectus (as amended or supplemented if such amendment or
supplement was furnished to such Participant prior to the written confirmation
of such sale) to such Person with or prior to the written confirmation of such
sale, if required by applicable law, and (y) the untrue statement or omission or
alleged untrue statement or omission was completely corrected in the Prospectus
(as amended or supplemented if amended or supplemented as aforesaid) and such
Prospectus does not contain any other

<Page>

                                      -18-

untrue statement or omission or alleged untrue statement or omission that was
the subject matter of the related proceeding. This indemnity agreement will be
in addition to any liability that the Issuer or any Guarantor may otherwise
have, including, but not limited to, liability under this Agreement.

             (b)   Each Participant agrees, severally and not jointly, to
indemnify and hold harmless the Issuer and each Guarantor, each Person, if any,
who controls the Issuer or any Guarantor within the meaning of Section 15 of the
Securities Act or Section 20(a) of the Exchange Act, and each of their
respective agents, employees, officers and directors and the agents, employees,
officers and directors of any such controlling Person from and against any
Losses to which they or any of them may become subject under the Securities Act,
the Exchange Act or otherwise insofar as such Losses (or actions in respect
thereof) arise out of or are based upon any untrue statement or alleged untrue
statement of a material fact contained in any Registration Statement (or any
amendment thereto) or Prospectus (as amended or supplemented if the Issuer shall
have furnished any amendments or supplements thereto) or any preliminary
prospectus, or caused by, arising out of or based upon any omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein, in the case of the Prospectus, in the
light of the circumstances under which they were made, not misleading, in each
case to the extent, but only to the extent, that any such Loss arises out of or
is based upon any untrue statement or alleged untrue statement or omission or
alleged omission made in reliance upon and in conformity with information
relating to such Participant furnished in writing to the Issuer by or on behalf
of such Participant expressly for use therein.

             (c)   Promptly after receipt by an indemnified party under
subsection 7(a) or 7(b) above of notice of the commencement of any action, suit
or proceeding (collectively, an "action"), such indemnified party shall, if a
claim in respect thereof is to be made against the indemnifying party under such
subsection, notify each party against whom indemnification is to be sought in
writing of the commencement of such action (but the failure so to notify an
indemnifying party shall not relieve such indemnifying party from any liability
that it may have under this Section 7 except to the extent that it has been
prejudiced in any material respect by such failure). In case any such action is
brought against any indemnified party, and it notifies an indemnifying party of
the commencement of such action, the indemnifying party will be entitled to
participate in such action, and to the extent it may elect by written notice
delivered to the indemnified party promptly after receiving the aforesaid notice
from such indemnified party, to assume the defense of such action with counsel
satisfactory to such indemnified party. Notwithstanding the foregoing, the
indemnified party or parties shall have the right to employ its or their own
counsel in any such action, but the reasonable fees and expenses of such counsel
shall be at the expense of such indemnified party or parties unless (i) the
employment of such counsel shall have been authorized in writing by the
indemnifying parties in connection with the defense of such action, (ii) the
indemnifying parties shall not have employed counsel to take charge of the
defense of such action within a reasonable time after notice of commencement of
the action, or (iii) the named parties to such action (including any impleaded
parties) include such indemnified party and the indemnifying party or parties
(or such indemnifying parties have assumed the defense of such action), and such
indemnified party or parties shall have reasonably concluded, that there may be
defenses available to it or them that are different from or additional to those
available to one or all of the indemnifying parties (in which case the
indemnifying parties shall not have the right to direct the defense of such
action on behalf of the indemnified party or parties), in any of which events
such reasonable fees and expenses of counsel shall be borne by the indemnifying
parties. In no event shall the indemnifying party be liable for the fees and
expenses of more than one counsel (together with appropriate local counsel) at
any time for all indemnified parties in connection with any one action or
separate but substantially similar or related actions arising in the same
jurisdiction out of the same general allegations or circumstances. Any such
separate firm for the Partici-

<Page>

                                      -19-

pants shall be designated in writing by Participants who sold a majority in
interest of Registrable Notes sold by all such Participants and shall be
reasonably acceptable to the Issuer and any such separate firm for the Issuer,
its affiliates, officers, directors, representatives, employees and agents and
such control Person of the Issuer shall be designated in writing by the Issuer
and shall be reasonable acceptable to the Holders. An indemnifying party shall
not be liable for any settlement of any claim or action effected without its
written consent, which consent may not be unreasonably withheld. No indemnifying
party shall, without the prior written consent of the indemnified party, effect
any settlement of any pending or threatened proceeding in respect of which any
indemnified party is or could have been a party and indemnity could have been
sought hereunder by such indemnified party, unless such settlement includes an
unconditional release of such indemnified party from all liability on claims
that are the subject matter of such proceeding.

             (d)   In order to provide for contribution in circumstances in
which the indemnification provided for in this Section 7 is for any reason held
to be unavailable from the indemnifying party, or is insufficient to hold
harmless a party indemnified under this Section 7, each indemnifying party shall
contribute to the amount paid or payable by such indemnified party as a result
of such aggregate Losses (i) in such proportion as is appropriate to reflect the
relative benefits received by each indemnifying party, on the one hand, and each
indemnified party, on the other hand, from the sale of the Notes to the Initial
Purchasers or the resale of the Registrable Notes by such Holder, as applicable,
or (ii) if such allocation is not permitted by applicable law, in such
proportion as is appropriate to reflect not only the relative benefits referred
to in clause (i) above but also the relative fault of each indemnified party, on
the one hand, and each indemnifying party, on the other hand, in connection with
the statements or omissions that resulted in such Losses, as well as any other
relevant equitable considerations. The relative benefits received by the Issuer
and the Guarantors, on the one hand, and each Participant, on the other hand,
shall be deemed to be in the same proportion as (x) the total proceeds from the
sale of the Notes to the Initial Purchasers (net of discounts and commissions
but before deducting expenses) received by the Issuer and the Guarantors are to
(y) the total net profit received by such Participant in connection with the
sale of the Registrable Notes. The relative fault of the parties shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to information supplied by the Issuer, the Guarantors or
such Participant and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission or
alleged statement or omission.

             (e)   The parties agree that it would not be just and equitable if
contribution pursuant to this Section 7 were determined by pro rata allocation
or by any other method of allocation that does not take into account the
equitable considerations referred to above. Notwithstanding the provisions of
this Section 7, (i) in no case shall any Participant be required to contribute
any amount in excess of the amount by which the net profit received by such
Participant in connection with the sale of the Registrable Notes exceeds the
amount of any damages that such Participant has otherwise been required to pay
by reason of any untrue or alleged untrue statement or omission or alleged
omission and (ii) no person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation. Any party entitled to contribution will, promptly after
receipt of notice of commencement of any action against such party in respect of
which a claim for contribution may be made against another party or parties
under this Section 7, notify such party or parties from whom contribution may be
sought, but the omission to so notify such party or parties shall not relieve
the party or parties from whom contribution may be sought from any obligation it
or they may have under this Section 7 or otherwise, except to the extent that it
has been prejudiced in any material respect by such failure; provided, however,
that no additional notice shall

<Page>

                                      -20-

be required with respect to any action for which notice has been given under
this Section 7 for purposes of indemnification. Anything in this section to the
contrary notwithstanding, no party shall be liable for contribution with respect
to any action or claim settled without its written consent, provided, however,
that such written consent was not unreasonably withheld.

     Section 8. RULES 144 AND 144A

             The Issuer covenants that it will file the reports required, if
any, to be filed by it under the Securities Act and the Exchange Act and the
rules and regulations adopted by the Commission thereunder in a timely manner in
accordance with the requirements of the Securities Act and the Exchange Act and,
if at any time the Issuer is not required to file such reports, it will, upon
the request of any Holder or beneficial owner of Registrable Notes, make
available such information necessary to permit sales pursuant to Rule 144A under
the Securities Act. The Issuer further covenants that for so long as any
Registrable Notes remain outstanding it will take such further action as any
Holder of Registrable Notes may reasonably request from time to time to enable
such Holder to sell Registrable Notes without registration under the Securities
Act within the limitation of the exemptions provided by (a) Rule 144(k) and Rule
144A under the Securities Act, as such Rules may be amended from time to time,
or (b) any similar rule or regulation hereafter adopted by the Commission.

     Section 9. UNDERWRITTEN REGISTRATIONS

             If any of the Registrable Notes covered by any Shelf Registration
are to be sold in an underwritten offering, the investment banker or investment
bankers and manager or managers that will manage the offering will be selected
by the Holders of a majority in aggregate principal amount of such Registrable
Notes included in such offering and shall be reasonably acceptable to the
Issuer.

             No Holder of Registrable Notes may participate in any underwritten
registration hereunder if such Holder does not (a) agree to sell such Holder's
Registrable Notes on the basis provided in any underwriting arrangements
approved by the Persons entitled hereunder to approve such arrangements and (b)
complete and execute all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents required under the terms of such
underwriting arrangements.

     Section 10. MISCELLANEOUS

             (a)   NO INCONSISTENT AGREEMENTS. Each of the Issuer and the
Guarantors has not, as of the date hereof, and shall not have, after the date of
this Agreement, entered into any agreement with respect to any of its securities
that is inconsistent with the rights granted to the Holders of Registrable Notes
in this Agreement or otherwise conflicts with the provisions hereof. The rights
granted to the Holders hereunder do not conflict with and are not inconsistent
with, in any material respect, the rights granted to the holders of any of the
Issuer's other issued and outstanding securities under any such agreements. Each
of the Issuer and the Guarantors has not entered and will not enter into any
agreement with respect to any of its securities which will grant to any Person
piggy-back registration rights with respect to any Registration Statement.

             (b)   ADJUSTMENTS AFFECTING REGISTRABLE NOTES. The Issuer and the
Guarantors shall not, directly or indirectly, take any action with respect to
the Registrable Notes as a class that would adversely affect the ability of the
Holders of Registrable Notes to include such Registrable Notes in a registration
undertaken pursuant to this Agreement.

<Page>

                                      -21-

             (c)   AMENDMENTS AND WAIVERS. The provisions of this Agreement may
not be amended, modified or supplemented, and waivers or consents to departures
from the provisions hereof may not be given except pursuant to a written
agreement duly signed and delivered by (I) the Issuer and each of the Guarantors
and (II)(A) the Holders of not less than a majority in aggregate principal
amount of the then outstanding Registrable Notes and (B) in circumstances that
would adversely affect the Participating Broker-Dealers, the Participating
Broker-Dealers holding not less than a majority in aggregate principal amount of
the Exchange Notes held by all Participating Broker-Dealers; provided, however,
that Section 7 and this Section 10(c) may not be amended, modified or
supplemented except pursuant to a written agreement duly signed and delivered by
the Issuer, each Guarantor and each Holder and each Participating Broker-Dealer
(including any Person who was a Holder or Participating Broker-Dealer of
Registrable Notes or Exchange Notes, as the case may be, disposed of pursuant to
any Registration Statement) affected by any such amendment, modification,
supplement or waiver. Notwithstanding the foregoing, a waiver or consent to
depart from the provisions hereof with respect to a matter that relates
exclusively to the rights of Holders of Registrable Notes whose securities are
being sold pursuant to a Registration Statement and that does not directly or
indirectly affect, impair, limit or compromise the rights of other Holders of
Registrable Notes may be given by Holders of at least a majority in aggregate
principal amount of the Registrable Notes being sold pursuant to such
Registration Statement.

             (d)   NOTICES. All notices and other communications (including,
without limitation, any notices or other communications to the Trustee) provided
for or permitted hereunder shall be made in writing by hand-delivery, registered
first-class mail, next-day air courier or telecopier:

               (i)   if to a Holder of the Registrable Notes or any
     Participating Broker-Dealer, at the most current address of such Holder or
     Participating Broker-Dealer, as the case may be, set forth on the records
     of the registrar under the Indenture.

               (ii)  if to the Issuer or Company or any Guarantor, at the
     address as follows:

                             c/o Code Hennessy & Simmons LLC
                             10 South Wacker Drive, Suite 3175
                             Chicago, Illinois 60606
                             Telephone: (312) 876-1840
                             Fax: (312) 876-3854
                             Attention: Dan Hennessey

               (iii) with a copy to:

                             Gundle/SLT Environmental, Inc.
                             19103 Gundle Road
                             Houston, TX  77073
                             Telephone: (281) 443-8564
                             Fax: (281) 230-2504
                             Attention: C. Wayne Case, Esq.

<Page>

                                      -22-

                    AND

                             Kirkland & Ellis LLP
                             200 E. Randolph Drive
                             Chicago, IL 60601
                             Telephone: (312) 861-2000
                             Fax: (312) 861-2200
                             Attention: James S. Rowe

               (iv)  if to the Initial Purchasers, at the address as follows:

                             UBS Securities LLC
                             677 Washington Boulevard
                             Stamford, CT 06901
                             Telephone: (203) 719-3000
                             Fax number: (212) 719-1075
                             Attention: High Yield Capital Markets

                    With a copy at such address to the attention of Legal
                    Department, fax number (203) 719-6177

             All such notices and communications shall be deemed to have been
duly given: when delivered by hand, if personally delivered; five Business Days
after being deposited in the mail, postage prepaid, if mailed; when receipt is
acknowledged by the recipient's telecopier machine, if telecopied; and on the
next Business Day, if timely delivered to an air courier guaranteeing overnight
delivery.

             Copies of all such notices, demands or other communications shall
be concurrently delivered by the Person giving the same to the Trustee at the
address and in the manner specified in such Indenture.

             (e)   SUCCESSORS AND ASSIGNS. This Agreement shall inure to the
benefit of and be binding upon the successors and assigns of each of the parties
hereto, the Holders and the Participating Broker-Dealers; provided, however,
that this Agreement shall not inure to the benefit of or be binding upon a
successor or assign of a Holder unless and to the extent such successor or
assign holds Registrable Notes.

             (f)   COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

             (g)   HEADINGS. The headings in this Agreement are for convenience
of reference only and shall not limit or otherwise affect the meaning hereof.

             (h)   GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS APPLIED TO
CONTRACTS MADE AND PERFORMED WHOLLY WITHIN THE STATE OF NEW YORK.

<Page>

                                      -23-

             (i)   SEVERABILITY. If any term, provision, covenant or restriction
of this Agreement is held by a court of competent jurisdiction to be invalid,
illegal, void or unenforceable, the remainder of the terms, provisions,
covenants and restrictions set forth herein shall remain in full force and
effect and shall in no way be affected, impaired or invalidated, and the parties
hereto shall use their best efforts to find and employ an alternative means to
achieve the same or substantially the same result as that contemplated by such
term, provision, covenant or restriction. It is hereby stipulated and declared
to be the intention of the parties that they would have executed the remaining
terms, provisions, covenants and restrictions without including any of such that
may be hereafter declared invalid, illegal, void or unenforceable.

             (j)   SECURITIES HELD BY THE ISSUER OR ITS AFFILIATES. Whenever the
consent or approval of Holders of a specified percentage of Registrable Notes is
required hereunder, Registrable Notes held by the Issuer or any of its
affiliates (as such term is defined in Rule 405 under the Securities Act) shall
not be counted in determining whether such consent or approval was given by the
Holders of such required percentage.

             (k)   THIRD-PARTY BENEFICIARIES. Holders and beneficial owners of
Registrable Notes and Participating Broker-Dealers are intended third-party
beneficiaries of this Agreement, and this Agreement may be enforced by such
Persons. No other Person is intended to be, or shall be construed as, a
third-party beneficiary of this Agreement.

             (l)   ATTORNEYS' FEES. As between the parties to this Agreement, in
any action or proceeding brought to enforce any provision of this Agreement, or
where any provision hereof is validly asserted as a defense, the successful
party shall be entitled to recover reasonable attorneys' fees actually incurred
in addition to its costs and expenses and any other available remedy.

             (m)   COMPANY AND GUARANTORS. On the date hereof, effective upon
effectiveness of the Merger, Company (i) as the survivor of the Merger, will by
operation of law assume the obligations of the Issuer pursuant to this
Agreement, the Indenture, the Notes and the Purchase Agreement, (ii) will
expressly assume the Issuer's obligations under this Agreement, the Indenture,
the Notes and the Purchase Agreement by executing joinders to each of such
agreements in form and substance satisfactory to the Representative, (iii) will
cause the Guarantors to become Guarantors and execute a supplemental indenture
to the Indenture as required by the Indenture and (iv) will cause those
Guarantors to become party to this Agreement and the Purchase Agreement by
executing joinders to such agreements in form and substance satisfactory to the
Representative.

             (n)   ENTIRE AGREEMENT. This Agreement, together with the Purchase
Agreement and the Indenture, is intended by the parties as a final and exclusive
statement of the agreement and understanding of the parties hereto in respect of
the subject matter contained herein and therein and any and all prior oral or
written agreements, representations, or warranties, contracts, understandings,
correspondence, conversations and memoranda between the Holders on the one hand
and the Issuer and the Guarantors on the other, or between or among any agents,
representatives, parents, subsidiaries, affiliates, predecessors in interest or
successors in interest with respect to the subject matter hereof and thereof are
merged herein and replaced hereby.

<Page>

                                      -24-

             IN WITNESS WHEREOF, the parties have executed this Agreement as of
the date first written above.


                                      ISSUER:
                                      GEO SUB CORP.


                                      By:      /s/ Marcus J. George
                                            ------------------------------------
                                            Name:  Marcus J. George
                                            Title: Vice President and Secretary

                                      INITIAL PURCHASERS:
                                      UBS SECURITIES LLC,
                                      JEFFERIES & COMPANY, INC.


                                      By: UBS Securities LLC


                                      By:      /s/ Jose Briones
                                            ------------------------------------
                                            Name:  Jose Briones
                                            Title: Managing Director


                                      By:      /s/ Kyun Park
                                            ------------------------------------
                                            Name:  Kyun Park
                                            Title: Director


[Registration Rights Agreement]