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                                                                   EXHIBIT 10.12

          INVESTOR RIGHTS AGREEMENT dated as of the Original Issue Date (this
"AGREEMENT") among SALT HOLDINGS CORPORATION, a Delaware corporation (the
"COMPANY") and the HOLDERS that are parties hereto.

          WHEREAS, each Holder deems it to be in the best interest of the
Company and the Holders that provision be made for the continuity and stability
of the business and policies of the Company, and, to that end, the Company and
the Holders hereby set forth herein their agreement with respect to the Common
Stock, Preferred Stock and Options owned by them.

          NOW, THEREFORE, in consideration of the premises and of the mutual
consents and obligations hereinafter set forth, the parties hereto hereby agree
as follows:

     Section 1. DEFINITIONS.

          As used in this Agreement:

          "AFFILIATE" of the Company or YBR means a Person that directly, or
indirectly through one or more intermediaries, controls, or is controlled by, or
is under common control with, the Company or YBR, as applicable. As used in this
definition, the term "control," including the correlative terms "controlling,"
"controlled by" and "under common control with," means possession, directly or
indirectly, of the power to direct or cause the direction of management or
policies (whether through ownership of securities or any partnership or other
ownership interest, by contract or otherwise) of a Person. The term "Affiliate"
shall not include at any time any portfolio companies of Apollo Management V,
L.P. or its Affiliates.

          "AFFILIATE" of a Holder (other than YBR) means: (i) any member of the
immediate family of an individual Holder, including parents, siblings, spouse
and children (including those by adoption); the parents, siblings, spouse, or
children (including those by adoption) of such immediate family member, and in
any such case any trust whose primary beneficiary is such individual Holder or
one or more members of such immediate family and/or such Holder's lineal
descendants; (ii) the legal representative or guardian of such individual Holder
or of any such immediate family members in the event such individual Holder or
any such immediate family members becomes mentally incompetent; and (iii) any
Person controlling, controlled by or under common control with a Holder. As used
in this definition, the term "control," including the correlative terms
"controlling," "controlled by" and "under common control with," means
possession, directly or indirectly, of the power to direct or cause the
direction of management or policies (whether through ownership of securities or
any partnership or other ownership interest, by contract or otherwise) of a
Person. The term "Affiliate" shall not include at any time any portfolio
companies of Apollo Management V, L.P or its Affiliates.

          "APOLLO GROUP" means Apollo Investment Fund V, L.P., a Delaware
limited partnership, Apollo Overseas Partner V, L.P. and each of their
respective Affiliates.

          "ASSET SALE" means the sale of all or substantially all of the assets
of the Company to a Person or Group which is not an Affiliate of YBR.

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          "BOARD" means the Board of Directors of the Company and any duty
authorized committee thereof. All determinations by the Board required pursuant
to the terms of this Agreement to be made by the Board shall be binding and
conclusive.

          "CAUSE" means a Non-YBR Holder's (a) conviction of a felony or crime
of moral turpitude (other than a traffic violation), (b) willful commission of
any action that is materially harmful to the Company or its Affiliates on a
consolidated basis (other than any action taken in good faith utilizing such
Non-YBR Holder's business judgement), or (c) failure to follow any lawful
communicated directive of the Board delivered to the Non-YBR Holder.

          "COME ALONG OPTION" has the meaning ascribed to such term in Section
4.2(b).

          "COMMON STOCK" means: (a) all shares of the voting or non-voting
common stock of the Company owned by each of the Holders on the date hereof; (b)
all shares of the voting or non-voting common stock hereafter issued by the
Company to or acquired by any Holder, whether in connection with a purchase,
issuance, grant, stock split, stock dividend, reorganization, warrant, option,
convertible security, right to acquire, deferred compensation plan or otherwise;
and (c) all securities of the Company or any other Person which any Holder
acquires in respect of his, her or its shares of Common Stock in connection with
any exchange, merger, recapitalization, consolidation, reorganization or other
transaction to which the Company is a party. All references herein to Common
Stock owned by a Holder include the community interest or similar marital
property interest, if any, of the spouse of such Holder in such Common Stock.
The term "common stock" means any stock of any class of the Company which has no
preference in respect of dividends or of amounts payable in the event of any
voluntary or involuntary liquidation, dissolution or winding up of the Company
and which is not subject to redemption by the Company (whether or not shares of
such class have voting rights).

          "CONTROL DISPOSITION" means a Disposition which would have the effect
of transferring to a Person or Group that is not an Affiliate of YBR a number of
shares of Common Stock such that, following the consummation of such
Disposition, such Person or Group possesses the voting power to elect a majority
of the Board (whether by merger, consolidation or sale or transfer of Common
Stock).

          "DISPOSITION" means any direct or indirect transfer, assignment, sale,
gift, pledge, hypothecation or other encumbrance, or any other disposition, of
Common Stock or Preferred Stock (or any interest therein or right thereto) or of
all or part of the voting power (other than the granting of a revocable proxy)
associated with the Common Stock or Preferred Stock (or any interest therein)
whatsoever, or any other transfer of beneficial ownership of Common Stock or
Preferred Stock whether voluntary or involuntary, including, without limitation
(a) as a part of any liquidation of a Non-YBR Holder's assets or (b) as a part
of any reorganization of a Non-YBR Holder pursuant to the United States or other
bankruptcy law or other similar debtor relief laws; PROVIDED, that (i) without
limiting restrictions contained in this Agreement, pledge arrangements which may
be entered into by a Non-YBR Holder pledging his, her or its Common Stock or
Preferred Stock to banks or other bona fide sources of financing and any
transactions contemplated thereby, shall not constitute a Disposition, and (ii)
the participation by a Non-YBR Holder in a proposed underwritten public offering
of common stock or preferred stock of the Company (including the entry into an
underwriting agreement, a custody agreement and other

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agreements ordinarily executed by selling Holders in connection therewith),
which public offering, if consummated, would constitute a Qualified Public
Offering, and the consummation thereof, or the participation by a Non-YBR Holder
in any other registration pursuant to any demand or piggyback registration
rights that such Non-YBR Holder may have pursuant to any registration rights or
similar agreement with the Company and the consummation thereof, shall not
constitute a Disposition, it being understood that, if such proposed
underwritten public offering is terminated or abandoned prior to consummation or
is not consummated in a manner which constitutes a Qualified Public Offering, or
such other registration is terminated or abandoned prior to consummation or is
not consummated, the Common Stock or Preferred Stock of such participating
Non-YBR Holder shall remain subject to this Agreement and no Disposition thereof
(whether pursuant to agreement entered into in connection with such proposed
underwritten public offering or otherwise) shall be permitted hereunder without
compliance with the terms of this Agreement. The term Disposition shall include
a Control Disposition.

          "DIVORCED NON-YBR HOLDER" has the meaning ascribed to such term in
Section 2.1.

          "DIVORCED SPOUSE" has the meaning ascribed to such term in Section
2.1.

          "ELIGIBLE OFFEREES" means the Company and YBR.

          "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended,
and the rules and regulations thereunder.

          "FAIR MARKET VALUE OF THE SHARES OF COMMON STOCK" means as of any
particular date (the "DETERMINATION DATE") for a share of Common Stock the ratio
of (a) the sum of (i) the product of (A) the ratio of (I) the cash purchase
price paid by YBR, the Apollo Group and their Affiliates for the equity of the
Company as of the Original Issue Date plus the value of the equity retained by
IMC Global, Inc. on the Original Issue Date plus or minus any post-closing
adjustments made in connection with the agreement evidencing the merger between
an affiliate of YBR and the Company to (II) the Company's consolidated earnings
before interest, taxes, depreciation and amortization ("EBITDA") for the 12
months prior to the Original Issue Date as described in the Company's applicable
high yield prospectus and (B) the Company's EBITDA for the 12 months prior to
the Determination Date calculated on the same basis as EBITDA was calculated for
the 12 months prior to the Original Issue Date plus (ii) the amount that would
be received by the Company upon the exercise of all Options outstanding that
have an exercise price that is less than the fair market value per share of
Common Stock as of the Determination Date, such fair market value to be
determined assuming the receipt of amounts for the exercise of all Options
outstanding unless after such assumption the fair market value per share of
Common Stock is less than the exercise price per share of the Options ("IN THE
MONEY OPTIONS") minus (iii) the amount of the Company's net debt and Fair Market
Value of the Shares of Preferred Stock as of the Determination Date to (b) the
number of shares of Common Stock outstanding as of the Determination Date
determined on a fully diluted basis (including the number of shares subject to
In-the Money Options as of such date). For purposes of this definition of Fair
Market Value of the Shares of Common Stock, EBITDA for the 12 months prior to
the Determination Date shall be adjusted to take into account a materially good
or bad winter pursuant to the terms

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agreed to by YBR and the Company's Chief Executive Officer, which terms shall be
set forth on ANNEX I hereto (or other factors that may be appropriate from time
to time). The Company shall deliver a written notice to Holders on a quarterly
basis of such Fair Market Value.

          "FAIR MARKET VALUE OF THE SHARES OF PREFERRED STOCK" means the per
share fair market value of the outstanding Preferred Stock of the Company, which
shall be calculated as of any Determination Date as the sum of the Original Cost
and the value of the dividends accrued, but not paid, to the Preferred Stock as
such fair market value was last determined in good faith by the Board prior to
the Offer or, if the Board determines in good faith that such fair market value
has materially changed from the amounts as last determined by the Board prior to
the Offer, the fair market value as determined in good faith by the Board as of
the most recent practicable date prior to the Offer; PROVIDED, HOWEVER, that if
shares of Preferred Stock are publicly traded or quoted at the time of any
Offer, then the fair market value of such shares shall be the most recently
quoted trading price on the business day immediately prior to the Offer. The
Board shall have no obligation to determine such fair market value at any time.
Neither the Company nor any officer, director, employee or agent of the Company
shall have any liability with respect to valuation of shares of Preferred Stock
that are bought or sold at the fair market value, as determined pursuant to this
paragraph even though the fair market value, as so determined, may be more or
less than actual fair market value, and shall be fully protected in relying in
good faith upon the records of the Company and upon information, opinions,
reports or statements presented to the Company by any Person as to matters which
the Company or such director, officer, employee or agent reasonably believes are
within such other Person's professional or expert competence and who has been
selected with reasonable care by or on behalf of the Company. The fair market
value of Preferred Stock as of the date of this Agreement and until the first
determination of fair market value thereof by the Board shall, for purposes of
this paragraph, be deemed to be Original Cost, subject to appropriate adjustment
by the Board for stock splits, stock dividends, combinations and similar
transactions. The Company shall deliver a written notice to Holders on a
quarterly basis of such Fair Market Value.

          "GOOD REASON" means voluntary resignation after any of the following
actions are taken by the Company or any of its subsidiaries without the Non-YBR
Holder's consent: (a) the continued failure to pay compensation when due to the
Non-YBR Holder for more than 30 (30) days; (b) a significant diminution in the
responsibilities or authority of the Non-YBR Holder; (c) a significant
diminution in the annual base compensation and other benefits to be paid to the
Non-YBR Holder (but not including any diminution related to a broader
compensation or benefit reduction that is not limited to any particular
employee) or (d) relocation of the Non-YBR Holder's primary work place beyond a
fifty (50) mile radius of the employee's current location; provided, that none
of the events described in the foregoing clauses (a), (b), (c) or (d) shall
constitute Good Reason unless the Non-YBR Holder shall have notified the Company
in writing describing the events which constitute Good Reason and then only if
the Company shall have failed to cure such event within 30 days after the
Company's receipt of such written notice.

          "GROUP" shall have the meaning ascribed thereto in Section 13(d)(3) of
the Exchange Act.

          "HOLDERS" means the holders of securities of the Company (and the
Persons who have a right to receive securities of the Company pursuant to
Options or any deferred

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compensation plan) who are parties hereto or to any other similar investor
rights agreement or stockholders agreement.

          "INITIAL PURCHASED SHARES" shall mean, with respect to each Non-YBR
Holder, all shares of Common Stock and Preferred Stock (a) purchased by such
Non-YBR Holder as of the Original Issue Date and (b) issuable to such Non-YBR
Holder pursuant to a distribution from the Company's Senior Executives' Deferred
Compensation Plan pursuant to any deferral election made thereunder on or prior
to the Original Issue Date, and any securities of the Company which may be
issued or distributed with respect to, or in exchange or substitution for, or
conversion of, such Initial Purchased Securities.

          "IRA" has the meaning ascribed to such term in Section 6.2(c).

          "MATERIAL AGREEMENT" has the meaning ascribed to such term in Section
4.1.

          "NON-INITIAL PURCHASED SHARES" shall mean all shares of Common Stock
or Preferred Stock that may be purchased by, transferred to, or are otherwise
held by, any Non-YBR Holder (whether upon the exercise of an Option or
otherwise) other than Initial Purchased Shares.

          "NON-YBR HOLDERS" means Holders other than the Company and YBR.

          "NOTICE" has the meaning ascribed to such term in Section 4.1.

          "OFFER" has the meaning ascribed to such term in Section 2.1, 2.2,
2.3, 2.4 or 2.5, as applicable.

          "OPTION" means the options issued to Holders pursuant to the Company's
2001 Stock Option Plan, as it is amended, supplemented or restated from time to
time, or any other option plan approved by the Company.

          "ORIGINAL COST" means:

               (a)  With respect to a share of Common Stock, $10 per share,
          subject to appropriate adjustment by the Board for stock splits, stock
          dividends, combinations and similar transactions; and

               (b)  With respect to a share of Preferred Stock, $1,000 per
          share, subject to appropriate adjustment by the Board for stock
          splits, stock dividends, combinations and similar transactions.

          "ORIGINAL ISSUE DATE" means the date of consummation of the merger
between YBR and the Company.

          "PERSON" shall be construed broadly and shall include, without
limitation, an individual, a partnership, a corporation, an association, a joint
stock company, a limited liability company, a trust, a joint venture, an
unincorporated organization and a governmental entity or any department agency
or political subdivision thereof.

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          "PIGGY-BACK REGISTRATION RIGHTS" has the meaning ascribed to such term
in Section 10.

          "PREFERRED STOCK" means shares of any class of preferred stock of the
Company issued and outstanding as of the Original Issue Date or any exchange
debentures issued in exchange for such preferred stock pursuant to its terms.

          "PROPORTIONATE PERCENTAGE" means, with respect to any Holder, (i) in
respect of shares of Common Stock, a fraction (expressed as a percentage) the
numerator of which is the total number of shares of Common Stock held by such
Holder (including any shares of Common Stock that such Holder purchases pursuant
to any Option exercised in connection with the applicable Section 4.2
Transaction or any shares distributed pursuant to any deferred compensation plan
in connection with the applicable Section 4.2 Transaction) and the denominator
of which is the total number of shares of Common Stock outstanding at the time
of determination (including any shares of Common Stock that such Holder
purchases pursuant to any Option exercised in connection with the applicable
Section 4.2 Transaction or any shares distributed pursuant to any deferred
compensation plan in connection with the applicable Section 4.2 Transaction) and
(ii) in respect of the Preferred Stock, a fraction (expressed as a percentage)
the numerator of which is the total number of shares of Preferred Stock held by
such Holder and the denominator of which is the total number of shares of
Preferred Stock outstanding at the time of determination.

          "PUBLIC SALE" means any sale, occurring simultaneously with or after
an initial public offering, of Common Stock or Preferred Stock to the public
pursuant to an offering registered under the Securities Act or to the public in
the manner described by the provisions of Rule 144(f).

          "PURCHASE PRICE" means, subject to adjustment pursuant to Section 3.5
and the provisions of this paragraph, (i) for purposes of the purchase of
Securities Subject to the Offer under Sections 2.1, 2.2, 2.3 or 2.5, and shares
of Common Stock or Preferred Stock purchased by a Divorced Non-YBR Holder or a
Surviving Non-YBR Holder under Sections 2.1 or 2.2, the Original Cost of such
Securities Subject to the Offer and (ii) for purposes of the purchase of
Securities Subject to the Offer under Section 2.4, the Fair Market Value of the
shares of Common Stock and the Fair Market Value of the Shares of Preferred
Stock.

          "QUALIFIED PUBLIC OFFERING" means an underwritten public offering of
Common Stock by the Company pursuant to an effective registration statement
filed by the Company with the Securities and Exchange Commission (other than on
Forms S-4 or S-8 or successors to such forms) under the Securities Act, pursuant
to which the aggregate offering price of the Common Stock sold in such offering
is at least $100,000,000.

          "QUALIFIED PREFERRED PUBLIC OFFERING" means an underwritten public
offering of Preferred Stock by the Company pursuant to an effective registration
statement filed by the Company with the Securities and Exchange Commission
(other than on Forms S-4 or S-8 or successors to such forms) under the
Securities Act, pursuant to which the aggregate offering price of the Preferred
Stock sold in such offering is at least $50,000,000.

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          "RECEIPT NOTICE" has the meaning ascribed to such term in Section 3.4.

          "REQUIRED VOTING PERCENTAGE" means a majority of the shares of Common
Stock outstanding owned by the Holders as of the date the vote is taken and the
vote of the shares of Common Stock owned by YBR.

          "SALE NOTICE" has the meaning ascribed to such term in Section 4.2(a).

          "SECTION 4.2 TRANSACTION" has the meaning ascribed to such term in
Section 4.2(a).

          "SECURITIES ACT" means the Securities Act of 1933, as amended, and the
rules and regulations thereunder.

          "SECURITIES SUBJECT TO THE OFFER" means: (i) with respect to an Offer
required under Section 2.1, all shares of Common Stock and Preferred Stock
transferred to or retained by or vested in the Divorced Spouse (defined therein)
and not elected to be purchased by the Divorced Non-YBR Holder (as defined
therein) within the time limits specified in that section, and no others; (ii)
with respect to an Offer required under Section 2.2, all shares of Common Stock
and Preferred Stock vesting in or transferable to any heir or legatee of the
deceased spouse other than the Surviving Non-YBR Holder (as defined in that
Section) and not elected to be purchased by the Surviving Non-YBR Holder within
the time limits specified in that Section, and no others; and (iii) all shares
of Common Stock and Preferred Stock owned by a Non-YBR Holder required to make
an Offer under Sections 2.3, 2.4 and 2.5.

          "SUBJECT EMPLOYEE" has the meaning ascribed to such term in Section
6.2(c).

          "SURVIVING NON-YBR HOLDER" has the meaning ascribed to such term in
Section 2.2.

          "TAG ALONG HOLDER" has the meaning ascribed to such term in Section
4.2(a).

          "TAG ALONG NOTICE" has the meaning ascribed to such term in Section
4.2(a).

          "YBR" means YBR Holdings LLC, a Delaware limited liability company.

     Section 2. GENERAL RULE.

          Without limiting Section 7, except as expressly permitted by the terms
of Sections 2, 4, 5, 9 and 10 without the consent of the Company, no Non-YBR
Holder shall make any Disposition, directly or indirectly, through an Affiliate
or otherwise. The preceding sentence shall apply with respect to all shares of
Common Stock and Preferred Stock held at any time by a Non-YBR Holder (including
without limitation to all shares of Common Stock acquired upon the exercise of
any stock option or upon the distribution from any deferred compensation plan),
regardless of the manner in which such Non-YBR Holder initially acquired Common
Stock or Preferred Stock, as applicable. In the event of a conflict between any
provision of this Section 2 and Section 9, the terms of Section 9 shall control.

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          2.1  DIVORCE OF NON-YBR HOLDER.

          If the marital relationship of a Non-YBR Holder is terminated by
divorce, and pursuant to such divorce, or any property settlement in connection
with such divorce, Common Stock or Preferred Stock, previously registered in the
name of such Non-YBR Holder ("DIVORCED NON-YBR HOLDER") are transferred to, or a
community property interest or similar marital property interest is retained by
or vested in, the spouse of the Divorced Non-YBR Holder ("DIVORCED SPOUSE"), the
Divorced Non-YBR Holder shall promptly notify the Company of such event. The
Divorced Non-YBR Holder shall have the option to purchase all of the Divorced
Non-YBR Holder's Common Stock and all of the Divorced Non-YBR Holder's Preferred
Stock, which have been transferred to or which are retained by or vested in the
Divorced Spouse by virtue of the divorce decree, property settlement, or by
operation of the community property or similar marital property laws for the
Purchase Price, and the Divorced Spouse shall be obligated to sell such Common
Stock and such Preferred Stock, to the Divorced Non-YBR Holder for the Purchase
Price. Such option must be exercised, and the purchase consummated, within 30
days after the Common Stock and the Preferred Stock are transferred to or
otherwise vested in or allowed to be retained by the Divorced Spouse. The option
shall be exercised by the giving of written notice of exercise to the Divorced
Spouse. The Divorced Non-YBR Holder shall, within five days after the expiration
of such 30 day period, deliver written notice to the Company as to whether the
Divorced Non-YBR Holder has purchased all of the Common Stock and the Preferred
Stock, so transferred to or otherwise vested in or retained by the Divorced
Spouse. In the event such written notice states that the Divorced Non-YBR Holder
has not purchased all such Common Stock and Preferred Stock, or no such notice
is delivered to the Company within the time required, the Divorced Spouse shall
be deemed to have made an irrevocable offer (the "OFFER") of all such Common
Stock and Preferred Stock, to the Eligible Offerees, and the Company shall (and
is hereby authorized by the Non-YBR Holders and their respective spouses to),
within five business days after (i) the receipt of such notice, if delivered
within the time required, or (ii) if such notice is not delivered within the
time required, the receipt by the Company of evidence, satisfactory to it that
all such Common Stock and Preferred Stock, were not purchased by the Divorced
Non-YBR Holder within such 30 day period, deliver written notice of the Offer to
the Eligible Offerees stating all such Common Stock and Preferred Stock are
Securities Subject to the Offer pursuant to this Section 2.1, and the date of
such Offer shall be deemed to be the date such written notice of the Offer is so
delivered by the Company.

          2.2  DEATH OF SPOUSE.

          If the spouse of a Non-YBR Holder dies, and all or any portion of the
Common Stock and/or Preferred Stock registered in the name of such Non-YBR
Holder ("SURVIVING NON-YBR HOLDER") vests in or is transferable to any heir or
legatee other than the Surviving Non-YBR Holder, the Surviving Non-YBR Holder
shall promptly notify the Company of such event. The Surviving Non-YBR Holder
shall have the option to purchase all of the Common Stock and Preferred Stock
vesting in or transferable to such heir or legatee for the Purchase Price, and
such heir or legatee and the estate of the deceased spouse shall be obligated to
sell such Common Stock and Preferred Stock to the Surviving Non-YBR Holder for
the Purchase Price. Such option must be exercised, and the purchase consummated,
within one hundred twenty days after the last to occur of (a) the entry of an
order of a probate or similar court (having jurisdiction over the estate of the
deceased spouse) (i) admitting to probate the will of the deceased spouse, or
(ii)

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determining the heirs of the deceased spouse if the deceased spouse is
determined to have died intestate, or (b) the appointment of the executor,
administrator or legal representative of the estate of the deceased spouse. The
option shall be exercised by the giving of written notice of exercise to the
executor, administrator or legal representative of the deceased spouse's estate.
The Surviving Non-YBR Holder shall, within five days after the expiration of
such 30 day period, deliver written notice to the Company as to whether the
Surviving Non-YBR Holder has purchased all of the Common Stock and Preferred
Stock, vesting in or transferable to any such heir or legatee. In the event such
written notice states that the Surviving Non-YBR Holder has not purchased all
such Common Stock and Preferred Stock, or no such notice is delivered to the
Company within the time required, all such heirs and legatees shall be deemed to
have made an irrevocable Offer (the "OFFER") of such Common Stock and Preferred
Stock, to the Eligible Offerees, and the Company shall (and is hereby authorized
by the Non-YBR Holders and their respective spouses to), within five business
days after (i) the receipt of such notice, if delivered within the time
required, or (ii) if such notice is not given within the time required, the
receipt by the Company of evidence satisfactory to it that all such Common Stock
and Preferred Stock, were not purchased by the Surviving Non-YBR Holder within
such one hundred twenty day period, deliver written notice of the Offer to the
Eligible Offerees stating that all such Common Stock and Preferred Stock are
Securities Subject to the Offer pursuant to this Section 2.2, and the date of
such Offer shall be deemed to be the date such written notice of the Offer is so
delivered by the Company.

          2.3  BANKRUPTCY.

          If any of the following events occurs:

               (a)  Any Non-YBR Holder shall (i) voluntarily be adjudicated as
          bankrupt or insolvent; (ii) consent to or not contest the appointment
          of a receiver or trustee for himself, herself or itself or for all or
          any part of his, her or its property; (iii) file a petition seeking
          relief under the bankruptcy, rearrangement, reorganization or other
          debtor relief laws of the United States or any state or any other
          competent jurisdiction; or (iv) make a general assignment for the
          benefit of his, her or its creditors; or

               (b)  If (i) a petition is filed against a Non-YBR Holder seeking
          relief under the bankruptcy, rearrangement, reorganization or other
          debtor relief laws of the United States or any state or other
          competent jurisdiction; or (ii) a court of competent jurisdiction
          enters an order, judgment or decree appointing a receiver or trustee
          for a Non-YBR Holder, or for any part of his, her or its property, and
          such petition, order, judgment or decree shall not be and remain
          discharged or stayed within a period of sixty days after its entry;

then any such event shall be deemed an irrevocable "OFFER," and such Non-YBR
Holder shall promptly notify the Company of such event, and the Company shall,
within five business days from receipt thereof (or, if no such notice is
delivered to the Company by the Non-YBR Holders, within five business days from
the Company's receipt of evidence, satisfactory to it, of any of the foregoing
events), deliver written notice of the Offer to the Eligible Offerees stating
that all of the shares of Common Stock and Preferred Stock registered in the
name of such Non-YBR

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Holder are Securities Subject to the Offer pursuant to this Section 2.3. The
date of such Offer shall be deemed to be the date such written notice of the
Offer is so delivered by the Company.

          2.4  DEATH OF NON-YBR HOLDER.

          The death of a Non-YBR Holder shall be deemed an irrevocable "OFFER"
by his or her estate (the "OFFEROR"), and the Offeror's executor or personal
representative promptly shall notify the Company of that event. The Company
shall, within five business days after learning of such death, deliver written
notice of the Offer to the Eligible Offerees stating that all of the shares of
the Common Stock and Preferred Stock of the Offeror are Securities Subject to
the Offer pursuant to this Section 2.4. The date of such Offer shall be deemed
to be the date on which such written notice is so delivered by the Company.

          2.5  INDIRECT TRANSACTION.

          In the event of a transaction involving a change of ownership interest
or voting power of a Non-YBR Holder which avoids the restrictions on
Dispositions provided in this Section 2, such transaction shall be deemed a
Disposition by such Non-YBR Holder and an irrevocable "OFFER," and such Non-YBR
Holder ("OFFEROR") shall promptly notify the Company of such event and offer
(the "OFFER"), by written notice to the Company, to sell all Securities Subject
to the Offer to the Eligible Offerees for the Purchase Price. Offers under this
Section 2.5 shall (a) be in writing; (b) be irrevocable for so long as any
Eligible Offeree has the right to purchase any Securities Subject to the Offer;
(c) be sent by the Offeror to the Company; and (d) contain a description of the
proposed transaction and change of ownership interest or voting power. The
Company shall, within five business days from receipt thereof (or, if no such
written notice is delivered to the Company by the Non-YBR Holder, within five
business days from the Company's receipt of evidence, satisfactory to it, of
such a Disposition by the Offeror), deliver written notice of the Offer to the
Eligible Offerees stating that all Common Stock and Preferred Stock registered
in the name of such Non-YBR Holder are Securities Subject to the Offer Pursuant
to this Section 2.5. The date of such Offer shall be deemed to be the date such
written notice of the Offer is so delivered by the Company.

     Section 3. PROCEDURES; PRICE.

          3.1  THE COMPANY.

          The Company shall have the right, for 30 days following the date of an
Offer, to accept the Offer as to all or any Securities Subject to the Offer. If
the Company shall not have sufficient surplus to permit it lawfully to purchase
Securities Subject to the Offer which the Company has accepted in whole or in
part, the Non-YBR Holders shall, promptly upon the request of the Company, take
such action to vote their respective shares to reduce the stated capital of the
Company to the extent permitted by law or to authorize such other steps as may
be appropriate or necessary in order to enable the Company, if possible,
lawfully to purchase such Securities Subject to the Offer.

                                       10
<Page>

          3.2  YBR.

          If the Company does not accept the Offer with respect to all
Securities Subject to the Offer within the 30 day period specified in Section
3.1, the Company shall promptly give written notice thereof to YBR and YBR shall
have the right, for 30 days following the receipt of such notice, to accept the
Offer as to any remaining Securities Subject to the Offer.

          3.3  CERTAIN EFFECTS OF OFFERS.

          Subject to the provisions of Section 6.2, all Common Stock and
Preferred Stock transferred in accordance with the terms of this Agreement to
any third party or to any Eligible Offeree (other than the Company), and all
Securities Subject to the Offer under Sections 2.1 through 2.5 (unless acquired
by the Company), shall remain subject to the terms of this Agreement; PROVIDED,
that upon the sale of (or other realization upon) Common Stock or Preferred
Stock by any banks or other bona fide sources of financing pursuant to, or upon
the occurrence of any transfer of such Common Stock or such Preferred Stock to
any such banks or other bona fide sources of financing or any third party
pursuant to, pledge arrangements which may be entered into by the Company's
Holders pledging their capital stock or notes thereto to secure financing, such
Common Stock and Preferred Stock so pledged shall not remain subject to the
terms of this Agreement.

          3.4  ACCEPTANCE; CLOSING.

          If an Eligible Offeree (other than the Company) accepts an Offer as to
all or any portion of the Securities Subject to the Offer, it shall evidence its
acceptance by delivering to the Company a written notice of intent to purchase
such Securities Subject to the Offer. The Company shall, in turn, promptly
notify in writing any Non-YBR Holder or any other party required to sell
Securities Subject to the Offer of the receipt of such notices ("RECEIPT
NOTICE"). The Company shall accept an Offer as to the Securities Subject to the
Offer by promptly notifying the Non-YBR Holder or any other party required to
sell Securities Subject to the Offer of such acceptance, and such notice by the
Company shall be deemed a Receipt Notice. The closing of the acquisitions of
Securities Subject to the Offer by Eligible Offerees shall be consummated within
90 days following the delivery of the Receipt Notice. In the case of all
acquisitions of Securities Subject to the Offer by Eligible Offerees such
acquisitions shall be consummated at a closing held at the principal offices of
the Company (unless otherwise mutually agreed), at which time the Purchase Price
(if cash, in the form of a cashier's check) shall be delivered to the transferor
of the Common Stock and the Preferred Stock or the transferor's representative,
and the transferor or the transferor's representative shall deliver to the
Eligible Offerees purchasing such shares and certificates representing the
Securities Subject to the Offer so purchased, duly endorsed for transfer or
accompanied by duly executed stock powers or assignment forms, and evidence of
good title to the Securities Subject to the Offer so purchased and the absence
of liens, encumbrances and adverse claims with respect thereto and such other
matters as are deemed necessary by the Company for the proper transfer of the
Securities Subject to the Offer so purchased to the acquiring Eligible Offerees
on the books of the Company.

                                       11
<Page>

          3.5  FORM OF PAYMENT

          The Purchase Price for all Securities Subject to the Offer pursuant to
an Offer made under Sections 2.1 through 2.5 shall be paid in cash.

     Section 4. CERTAIN DISPOSITIONS.

          4.1  LOAN AND OTHER AGREEMENTS: CERTAIN RESTRICTIONS.

          Notwithstanding anything in this Agreement to the contrary, no Non-YBR
Holder shall make any Disposition (including but not limited to a Disposition
pursuant to Sections 2, 4 or 5 (other than pursuant to Section 4.2 or paragraph
5.1(a) and excluding any Disposition pursuant to Section 10) which, in the
Company's reasonable judgment (as evidenced by a resolution of the Board), would
cause a breach or default or acceleration of payments under any loan agreement,
note, indenture or other agreement or instrument to which the Company and/or its
Affiliates are a party and under which the indebtedness or liability of the
Company and/or its Affiliates exceeds $1,000,000 ("MATERIAL AGREEMENT").
Therefore, each Non-YBR Holder desiring or required to make a Disposition shall,
prior to attempting to effect any such Disposition, (a) give written notice
("NOTICE") to the Company describing the proposed Disposition and the proposed
transferee in sufficient detail, setting forth the number of shares of Common
Stock or Preferred Stock as to which such Non-YBR Holder desires to make a
Disposition; and (b) provide such other information concerning the Disposition
as the Company reasonably requests. If, in the Company's reasonable judgment
(which judgment shall be communicated in writing within ten days of the
Company's receipt of the Notice and all other information it has reasonably
requested), the proposed Disposition would cause a breach or default or
acceleration of payments under any Material Agreement, then such Disposition may
not be made, and any attempted Disposition shall be null and void. If the
Company approves such Disposition (which approval shall be deemed given if no
notification is given by the Company in accordance with the immediately
preceding sentence) and any shares of Common Stock or Preferred Stock with
respect to which approval has been given are not actually transferred within the
relevant time period provided in the applicable provisions of this Agreement,
then all of the provisions of this Agreement shall apply to any subsequent
transaction affecting such Common Stock and Preferred Stock (except as expressly
excluded by the other terms of this Agreement). Additionally, all shares of
Common Stock and Preferred Stock transferred (whether to a third party or any
Non-YBR Holder) pursuant to a Disposition complying with the terms of this
Section 4 shall remain subject to this Agreement.

          4.2  COME-ALONG AND TAG ALONG RIGHTS.

               (a)  Subject to the provisions of paragraph 4.2(b), prior to the
          consummation of a Qualified Public Offering or Qualified Preferred
          Public Offering, if YBR desires to effect (i) an Asset Sale, (ii) any
          sale or transfer of shares of Common Stock or Preferred Stock (other
          than any transfer described in the seventh sentence of this Section
          4.2(a)) following which (when aggregated with all prior such sales or
          transfers) YBR shall have disposed of at least 10% of number of shares
          of Common Stock or Preferred Stock, as applicable, that YBR owned as
          of the time Original Issue Date to a transferee or Group, or (iii) a

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<Page>

          Control Disposition or any sale or transfer of shares of Common Stock
          or Preferred Stock following a Control Disposition (any event
          described in subsection (i), (ii) or (iii) being a "SECTION 4.2
          TRANSACTION"), it shall give written notice to the Non-YBR Holders
          offering such Non-YBR Holders the option to participate in such
          Section 4.2 Transaction. The notice shall set forth the material terms
          of the proposed Section 4.2 Transaction and identify the contemplated
          transferee or Group (a "SALE NOTICE"). Each of the Non-YBR Holders
          may, by written notice to YBR (a "TAG ALONG NOTICE") delivered within
          ten days after the date of the Sale Notice (each such Non-YBR Holder
          delivering such timely notice being a "TAG ALONG HOLDER"), elect to
          sell in such Section 4.2 Transaction by specifying the maximum number
          of shares of Common Stock or Preferred Stock (including within this
          number that number of shares of Common Stock and Preferred Stock to be
          distributed to such Tag Along Holder in connection with such Tag Along
          Transaction from any deferred compensation plan or which such Tag
          Along Holder may obtain by exercising any Options held by the Tag
          Along Holder that are vested as of the date of such Tag Along Notice
          or which would vest in connection with such Section 4.2 Transaction,
          collectively the "DEEMED HELD SHARES") such Tag Along Holder desires
          to include in such Section 4.2 Transaction. If none of the Holders
          delivers a timely Tag Along Notice, YBR may thereafter consummate the
          Section 4.2 Transaction, on substantially the same terms and
          conditions as are described in the Sale Notice. If one or more of the
          Non-YBR Holders gives YBR a timely Tag Along Notice, then YBR shall
          use all reasonable efforts to cause the prospective transferee or
          Group to agree to acquire all shares identified in all timely Tag
          Along Notices, upon the same terms and conditions as applicable to the
          shares held by YBR. If such prospective transferee or Group is unable
          or unwilling to acquire all shares proposed to be included in the
          Section 4.2 Transaction upon such terms, then YBR may elect to cancel
          such Section 4.2 Transaction or to allocate the maximum number of
          shares that each prospective transferee or Group is willing to
          purchase among YBR and the Tag Along Holders in the proportion that
          each such Tag Along Holder's and YBR's Proportionate Percentage bears
          to the total Proportionate Percentages of YBR and the Tag Along
          Holders (e.g., if the Sale Notice contemplated a Section 4.2
          Transaction of 10% Proportionate Percentage by YBR, and if YBR at such
          time owns a 30% Proportionate Percentage and one Tag Along Holder who
          owns a 20% Proportionate Percentage elects to participate, then YBR
          would be entitled to sell a 6% Proportionate Percentage (30%/50% x the
          10% Proportionate Percentage) and the Tag Along Holder would be
          entitled to sell a 4% Proportionate Percentage (20%/50% x the 10%
          Proportionate Percentage) (and for purposes of calculating the maximum
          number of shares of Common Stock or Preferred Stock that any Non-YBR
          Holder shall be permitted to sell in accordance such Non-YBR Holder's
          Proportionate Percentage, such Non-YBR-Holder shall be deemed to first
          sell in such Section 4.2 Transaction any shares that the Non-YBR
          Holder has previously sold to the Company pursuant to a Section
          9(b)(ii) Sale). Notwithstanding the provisions of this Section, during
          the first 12 months of this Agreement, YBR may transfer any number of
          shares of Common Stock then owned by it on the date hereof without
          complying with the provision of this

                                       13
<Page>

          Section so long as such transfer would not be deemed to be a Control
          Disposition. Notwithstanding any other provision in this Agreement, no
          Section 4.2 Transaction shall be subject to the requirements of
          Sections 2.1 through 2.5, Section 3 (other than as set forth in
          Section 3.3) or Section 4.1. Upon the closing of the sale of any
          shares of Common Stock or Preferred Stock (including any Deemed Held
          Shares) pursuant to this paragraph, the Holders shall deliver at such
          closing, against payment of the purchase price therefor, certificates
          representing their shares of Common Stock or Preferred Stock to be
          sold, duly endorsed for transfer or accompanied by duly endorsed stock
          powers, and evidence of good title to the shares to be sold and the
          absence of liens, encumbrances and adverse claims with respect thereto
          and such other matters as are deemed necessary by the Company for the
          proper transfer of such shares on the books of the Company. For
          purposes of this paragraph 4.2(a), any holder of Common Stock who has
          a contractual right to participate in such Section 4.2 Transaction or
          any other holder of Common Stock or Preferred Stock who is otherwise
          participating in such Section 4.2 Transaction with the consent of YBR
          shall be deemed to be a "Non-YBR Holder" hereunder.

               (b) If YBR desires to effect a Section 4.2 Transaction, then in
          lieu of complying with the requirement of paragraph 4.2(a), YBR at its
          option (the "COME ALONG OPTION") may require all Non-YBR Holders to
          sell the same percentage of their respective shares of Common Stock or
          Preferred Stock (including their Deemed Held Shares) as YBR desires to
          sell to the transferee or Group selected by YBR, at the same price per
          share and on the same terms and conditions as apply to those sold by
          YBR (and for purposes of calculating the number of shares of Common
          Stock or Preferred Stock of any Non-YBR Holder that may be subject to
          such Come Along Option, such Non-YBR Holder shall be deemed to first
          sell in such Section 4.2 Transaction any shares that the Non-YBR
          Holder has previously sold to the Company pursuant to a Section 9
          (b)(ii) Sale). All Non-YBR Holders shall consent to and raise no
          objections against the Section 4.2 Transaction, and if the Section 4.2
          Transaction is structured as (i) a merger or consolidation of the
          Company or an Asset Sale, each Non-YBR Holder shall waive any
          dissenters rights, appraisal rights or similar rights in connection
          with such merger, consolidation or Asset Sale, or (ii) a sale of all
          the capital stock of the Company, the Non-YBR Holders shall agree to
          sell all their shares of Common Stock or Preferred Stock which are the
          subject of the Section 4.2 Transaction (including their Deemed Held
          Shares). The Non-YBR Holders shall take all necessary and desirable
          actions approved by YBR in connection with the consummation of the
          Section 4.2 Transaction, including obtaining Board consent to the
          Section 4.2 Transaction and the execution of such agreements and such
          instruments and other actions reasonably necessary to provide
          customary representations, warranties, and indemnities regarding
          title, as well as escrow arrangements relating to such Section 4.2
          Transaction. Notwithstanding any other provision of this Agreement, no
          such Disposition shall be subject to the requirements of Sections 2.1
          through 2.5 or Section 3. Upon the closing of any shares of Common
          Stock or Preferred Stock pursuant to this paragraph, the Non-YBR
          Holders shall deliver at such closing, against payment of the purchase
          price

                                       14
<Page>

          therefor, certificates representing their shares of Common Stock or
          Preferred Stock to be sold, duly endorsed for transfer or accompanied
          by duly endorsed stock powers, and evidence of good title to the
          shares to be sold and the absence of liens, encumbrances and adverse
          claims with respect thereto and such other matters as are deemed
          necessary by the Company for the proper transfer of such shares on the
          books of the Company.

               (c) For purposes of this Section 4.2, a Control Disposition shall
          include an indirect Disposition triggered by a transfer of the
          membership units of YBR to a Person or Group that is not an Affiliate
          of YBR.

               (d) The Company and the Non-YBR Holder shall cooperate in causing
          any Deemed Held Shares that are ultimately included in a Section 4.2
          Transaction to be delivered to the Non-YBR Holder immediately prior to
          the closing of such Section 4.2 Transaction in order that the Non-YBR
          Holder may exercise his rights under Section 4.2(a) or that YBR may
          exercise its rights under Section 4.2(b), as the case may be.

     Section 5. PERMITTED TRANSFERS.

          5.1  DISPOSITIONS.

          The following Dispositions shall be permitted without compliance with
the provisions of Section 2 and 3 (but Section 4 shall apply to each of the
following Dispositions other than a Disposition described in paragraphs 5.1(a),
and Sections 10 and 11(t) shall apply to 5.1(a)):

               (a) By any Non-YBR Holder (i), in the case of shares of Common
          Stock or Preferred Stock, with respect to a Public Sale in connection
          with the exercise of Piggyback Registration Rights in accordance with
          Section 10 or (ii) a Public Sale of Common Stock that occurs at least
          twelve months following a Qualified Public Offering or a Public Sale
          of Preferred Stock that occurs at least 12 months following a
          Qualified Preferred Public Offering;

               (b) By any individual Non-YBR Holder during such Non-YBR Holder's
          lifetime to: (i) a guardian of the estate of such Non-YBR Holder, (ii)
          an inter-vivos trust primarily for the benefit of such Non-YBR Holder;
          (iii) an inter-vivos trust whose primary beneficiary is one or more of
          such Non-YBR Holder's lineal descendants (including lineal descendants
          by adoption); (iv) the spouse of such Non-YBR Holder during marriage
          and not incident to divorce; or (v) such Non-YBR Holder's Affiliates;

               (c) To any individual Non-YBR Holder by: (i) a guardian of the
          estate of such Non-YBR Holder; (ii) an inter-vivos trust whose primary
          beneficiary is such Non-YBR Holder or one or more of such Non-YBR
          Holder's lineal descendants (including lineal descendants by
          adoption), (iii) the spouse of such Non-YBR Holder during marriage and
          not incident to divorce; or (iv) such Non-YBR Holder's lineal
          descendants (including lineal descendants by adoption);

                                       15
<Page>

               (d) With the consent of the Company, by any Non-YBR Holder to a
          qualified retirement plan sponsored by the Non-YBR Holder;

               (e) By any qualified retirement plan referred to in paragraph
          5.1(d) to participants, alternate payees and beneficiaries to the
          extent required by law and the provisions of such plan;

               (f) By any Non-YBR Holder which is a trust, to any successor
          trust or successor trustee; and

               (g) With the consent of the Company, by any Non-YBR Holder to
          other entities for tax planning purposes.

PROVIDED, HOWEVER, that as a condition to any such permitted transfer, any
Person (including such Person's spouse, if any), (other than the Company), so
acquiring such Common Stock or Preferred Stock shall be required to subject the
Common Stock acquired by such Person to the provisions of this Agreement, and
thereafter any such Person shall be deemed a "Non-YBR Holder" for the purposes
of this Agreement.

          5.2  PLEDGES.

               (a) Unless approved by a majority of the Board, no Non-YBR Holder
          shall pledge any shares of Common Stock or Preferred Stock held by it,
          unless such pledge is made by such Non-YBR Holder to the Company.

               (b) A breach by any Non-YBR Holder of the covenants contained in
          this Section 5.2 shall not relieve or waive the obligations of all
          other Non-YBR Holders to comply with such covenants.

     Section 6. CONDITIONS; ADDITIONAL PARTIES.

          6.1  CONDITIONS TO PERMITTED TRANSFERS.

          As a condition to the Company's obligation to effect a transfer
permitted by this Agreement on the books and records of the Company, any
transferee (other than a transferee described in paragraph 5.1(a)) of Common
Stock or Preferred Stock shall be required to become a party to this Agreement
by executing (together with such Person's spouse, if applicable) an Adoption
Agreement in substantially the form of EXHIBIT A or in such other form that is
reasonably satisfactory to the Company and upon execution of such Adoption
Agreement such transferee shall have all the rights and obligations of a Non-YBR
Holder hereunder.

          6.2  ADDITIONAL PARTIES.

               (a) If required under the terms of this Agreement, or upon the
          written approval of the holders of at least the Required Voting
          Percentage, any Person which acquires any shares of Common Stock or
          Preferred Stock subsequent to the execution of this Agreement shall
          become a party to this Agreement upon executing (together with such
          Person's spouse, if any) an Adoption Agreement in

                                       16
<Page>

          substantially the form of EXHIBIT A or in such other form that is
          reasonably satisfactory to the Company and upon execution of such
          Adoption Agreement such transferee shall have all the rights and
          obligations of a Non-YBR Holder hereunder.

               (b) In the event that any Person acquires shares of Common Stock
          or Preferred Stock from (i) a Non-YBR Holder or any Affiliate or
          member of such Non-YBR Holder's Group or (ii) any direct or indirect
          transferee of a Non-YBR Holder, including pursuant to any Disposition
          contemplated by Section 5.1 of this Agreement, such Person shall be
          subject to any and all obligations and restrictions of the Non-YBR
          Holder (for whom the shares of Common Stock or Preferred Stock were
          purchased) hereunder, as if such Person was such Non-YBR Holder named
          herein, including, without limitation, the obligation to make an Offer
          to Eligible Offerees pursuant to Section 2.4 upon the death of the
          Non-YBR Holder (from whom the shares of Common Stock or Preferred
          Stock were purchased). Additionally, whenever a Non-YBR Holder makes a
          transfer of shares of Common Stock or Preferred Stock, including
          pursuant to any Disposition contemplated by Section 5.1 of this
          Agreement, such shares and/or Preferred Stock shall contain a legend
          so as to inform any transferee that such shares and/or Preferred Stock
          were held originally by a Non-YBR Holder and are subject to repurchase
          upon the death of such Non-YBR Holder. Such legend shall not be placed
          on any shares of Common Stock or Preferred Stock acquired from a
          Non-YBR Holder by the Company, YBR or any of their Affiliates.

               (c) Any shares of Common Stock or Preferred Stock acquired by an
          individual retirement account ("IRA") on behalf of an employee of the
          Company or any of its subsidiaries (the "SUBJECT EMPLOYEE") shall be
          deemed to be a Non-YBR Holder. Additionally, such Subject Employee
          shall be deemed to be a Non-YBR Holder and his or her IRA shall be
          deemed to have acquired all shares and/or Preferred Stock it holds
          from such Subject Employee pursuant to a transfer that is subject to
          Section 6.2(b) above.

     Section 7. Restriction on Transfer.

               (a) No shares of Common Stock or Preferred Stock shall be
          transferable except upon the conditions specified in this Section 7,
          which conditions are intended to insure compliance with the provisions
          of the Securities Act.

               (b) Each certificate representing shares of Common Stock and
          Preferred Stock shall (unless otherwise permitted by the provisions of
          paragraph (d) below) be stamped or otherwise imprinted with a legend
          in substantially the following form:

               "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE BEEN
               ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN

                                       17
<Page>

               REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY
               STATE SECURITIES OR BLUE SKY LAWS. THESE SECURITIES MAY NOT BE
               SOLD OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR AN
               EXEMPTION THEREFROM UNDER SAID ACT OR LAWS. THE SECURITIES
               REPRESENTED BY THIS CERTIFICATE ARE ALSO SUBJECT TO AN INVESTOR
               RIGHTS AGREEMENT DATED AS OF THE ORIGINAL ISSUE DATE AMONG THE
               ISSUER OF SUCH SECURITIES (THE "COMPANY"), AND THE OTHER PARTIES
               NAMED THEREIN. THE TERMS OF SUCH INVESTOR RIGHTS AGREEMENT
               INCLUDE, AMONG OTHER THINGS, RESTRICTIONS ON TRANSFER. A COPY OF
               SUCH AGREEMENT WILL BE FURNISHED WITHOUT CHARGE BY THE COMPANY TO
               THE HOLDER HEREOF UPON WRITTEN REQUEST."

               (c) The holder of any shares of Common Stock or Preferred Stock
          by acceptance thereof agrees, prior to any transfer of any such
          shares, to give written notice to the Company of such holder's
          intention to effect such transfer and to comply in all other respects
          with the provisions of this Section. Each such notice shall describe
          the manner and circumstances of the proposed transfer. Upon request by
          the Company, the holder delivering such notice shall deliver a written
          opinion, addressed to the Company, of counsel for the holder of such
          shares, stating that in the opinion of such counsel (which opinion and
          counsel shall be reasonably satisfactory to the Company) such proposed
          transfer does not involve a transaction requiring registration or
          qualification of such shares under the Securities Act. Such holder of
          such shares shall be entitled to transfer such shares in accordance
          with the terms of the notice delivered to the Company, if the Company
          does not reasonably object to such transfer and request such opinion
          within fifteen days after delivery of such notice, or, if it requests
          such opinion, does not reasonably object to such transfer within
          fifteen days after delivery of such opinion. Each certificate or other
          instrument evidencing the securities issued upon the transfer of any
          shares of Common Stock shall bear the legend set forth in paragraph
          (b) above unless (i) in such opinion of counsel to the holder of such
          shares (which opinion and counsel shall be reasonably acceptable to
          the Company) registration of any future transfer is not required by
          the applicable provisions of the Securities Act or (ii) the Company
          shall have waived the requirement of such legends.

               (d) Notwithstanding the foregoing provisions of this Section 7,
          the restrictions imposed by this Section upon the transferability of
          any shares of Common Stock or Preferred Stock shall cease and
          terminate when (i) any such shares are sold or otherwise disposed of
          (A) pursuant to an effective registration

                                       18
<Page>

          statement under the Securities Act or (B) in a transaction
          contemplated by paragraph (c) above which does not require that the
          shares so transferred bear the legend set forth in paragraph (b)
          hereof, or (ii) the holder of such shares has met the requirements for
          transfer of such shares under Rule 144(k) under the Securities Act
          (subject to the delivery of opinions as set forth above). Whenever the
          restrictions imposed by this Section shall terminate, the holder of
          any shares as to which such restrictions have terminated shall be
          entitled to receive from the Company, without expense, a new
          certificate not bearing the restrictive legend set forth in paragraph
          (b) above and not containing any other reference to the restrictions
          imposed by this Section.

     Section 8. NOTICES.

          In the event a notice or other document is required to be sent
hereunder to the Company or to any Holder or the spouse or legal representative
of a Holder, such notice or other document, if sent by mail, shall be sent by
registered mail, return receipt requested (and by air mail in the event the
addressee is not in the continental United States), to the party entitled to
receive such notice or other document at the address set forth on ANNEX II
hereto. Any such notice shall be effective and deemed received three days after
proper deposit in the mails, but actual notice shall be effective however and
whenever received. The Company or any Holder or spouse or their respective legal
representatives may effect a change of address for purposes of this Agreement by
giving notice of such change to the Company, and the Company shall, upon the
request of any party hereto, notify such party of such change in the manner
provided herein. Until such notice of change of address is properly given, the
addresses set forth herein shall be effective for all purposes.

     Section 9. REPURCHASE RIGHTS AND SALE RIGHTS. With respect to the Initial
Purchased Shares only (except as otherwise specifically provided):

          (a)  If a Non-YBR Holder voluntarily resigns, other than for Good
     Reason, as an employee of the Company or any of the Company's subsidiaries
     or if a Non-YBR Holder's employment with the Company or any of the
     Company's subsidiaries is terminated for Cause, then the Company or any of
     its subsidiaries shall have the right, but not the obligation, to
     repurchase all or any portion of the shares of Common Stock and Preferred
     Stock (whether Initial Purchased Shares or Non-Initial Purchased Shares and
     whether held by the Non-YBR Holder or one or more permitted transferees) in
     accordance with this Section 9 at the Fair Market Value of the shares of
     Common Stock and Fair Market Value of the shares of Preferred Stock. The
     Company or any of its subsidiaries may exercise its right to purchase such
     shares of Common Stock and shares of Preferred Stock until (i) with respect
     to any shares of Common Stock that may be received by any Non-YBR Holder
     upon exercise of any Options that are vested as of the date of the Non-YBR
     Holder's termination of employment ("OPTION SHARES"), the seven month
     anniversary of the date of exercise of such Options, (ii) with respect to
     any shares of Common Stock or Preferred Stock issuable to any Non-YBR
     Holder pursuant to a deferred compensation plan, the later of (A) the seven
     month anniversary of the date such shares first become vested pursuant to
     such deferred compensation plan or (B) the 30/th/ day following the date of
     the Non-YBR Holder's termination of employment or (iii) with

                                       19
<Page>

     respect to any other shares of Common Stock or Preferred Stock, the 30th
     day following the date of the Non-YBR Holder's termination of employment
     (such date described in subsection (i), (ii) or (iii), as applicable, the
     "REPURCHASE DATE"). On or before the Repurchase Date, the Company or its
     applicable subsidiary shall give written notice to YBR stating whether it
     will exercise such purchase rights. If such notice states that the Company
     and its subsidiaries will not exercise its purchase rights, YBR shall have
     the right to purchase the shares of Common Stock and shares of Preferred
     Stock on the same terms and conditions as the Company and its subsidiaries
     until the later of (x) the 30th day following the receipt of such notice or
     (y) the Repurchase Date. Notwithstanding any provision of this Section 9(a)
     to the contrary, in no event shall the Company or YBR purchase any Option
     Shares or shares of Common Stock or Preferred Stock issued pursuant to a
     deferred compensation plan prior to six months and one day following the
     earlier of (A) the date such shares were first purchased by the Non-YBR
     Holder upon exercise of the Options or (B) the date such shares became
     vested under any deferred compensation plan, as applicable. The
     Determination Date for purposes of determining the Fair Market Value shall
     be the closing date of the purchase of the applicable shares, as described
     in Section 9(c).

               (b) (i) Except as otherwise set forth in Section 9(b)(ii), if a
          Non-YBR Holder's employment with the Company or any of the Company's
          subsidiaries is terminated by the Company or its applicable subsidiary
          without Cause or a Non-YBR Holder voluntarily resigns as an employee
          of the Company or any of the Company's subsidiaries for Good Reason
          (in either event, a "SECTION 9(b) TERMINATION"), then such Non-YBR
          Holder (or any permitted transferee) shall for 30 days following the
          date of such Section 9(b) Termination have the right, but not the
          obligation, to sell all (but not less than all) of his shares of
          Common Stock and Preferred Stock to the Company in accordance with
          this Section 9(b)(i) at the Fair Market Value of the Shares of Common
          Stock and Fair Market Value of the Shares of Preferred Stock;
          PROVIDED, HOWEVER, that notwithstanding the forgoing, in no event
          shall the Company purchase any shares of Common Stock that are issued
          upon the exercise of any Options prior to the date of such Section
          9(b) Termination or any shares of Common Stock or Preferred Stock that
          are issued pursuant to a deferred compensation plan prior to six
          months and one day following the earlier of (A) the date such shares
          were first purchased by the Non-YBR Holder upon exercise of such
          Options or (B) the date such shares became vested under any deferred
          compensation plan, as applicable (and to the extent the Company is
          prohibited from purchasing any shares pursuant to the foregoing
          proviso, the Company shall so purchase upon the first date permissible
          under the foregoing proviso). In order to exercise the sale right
          pursuant to this Section 9(b)(i), the Non-YBR Holder shall be required
          to provide the Company with written notice within 30 days following
          the date of such Section 9(b) Termination (or, if later, within the 30
          consecutive day period beginning six months and one day following the
          earlier of (A) the date such shares were first purchased by the
          Non-YBR Holder upon exercise of such Options or (B) the date such
          shares became vested under any deferred compensation plan, as
          applicable) (the "SECTION 9(b) NOTICE PERIOD") stating that he wishes
          to exercise such sale right. The Determination Date for purposes of

                                       20
<Page>

          determining the Fair Market Value for purposes of this Section 9(b)(i)
          shall be the closing date of the purchase of the applicable shares, as
          described in Section 9(c).

                    (ii)  Notwithstanding Section 9(b)(i), in the event of any
          Section 9(b) Termination, the applicable Non-YBR Holder (or any
          permitted transferee) shall, solely with respect to any Option Shares,
          have the right, but not the obligation, to sell all (but not less than
          all) of his Option Shares to the Company in accordance with this
          Section 9(b)(ii) (a "SECTION 9(b)(ii) SALE"). In order to effectuate
          any Section 9(b)(ii) Sale, the applicable Non-YBR Holder must exercise
          all Options that are vested as of the date of the Section 9(b)
          Termination prior to the six month anniversary of such Section 9(b)
          Termination and, within the Section 9(b) Notice Period, provide the
          Company with written notice that the Non-YBR Holder wishes to sell his
          Option Shares to the Company pursuant to a Section 9(b)(ii) Sale. The
          terms of any such Section 9(b)(ii) Sale shall be as follows: (A) the
          effective date of such Section 9(b)(ii) Sale shall be six months and
          one day following the date of exercise of the Options (or, if later,
          the closing date of the purchase of the applicable shares, as
          described in Section 9(c)) (the "SECTION 9(b)(ii) SALE DATE"); (B) the
          purchase price per each Option Share shall be equal to the Fair Market
          Value of the Shares of Common Stock on the Section 9(b)(ii) Sale Date;
          and (C) unless otherwise determined by the Company in its discretion
          (I) the aggregate purchase price for all Option Shares shall be paid
          by the Company via a promissory note (a "COMPANY NOTE") payable to the
          Non-YBR Holder in the principal amount equal to such aggregate
          purchase price, (II) the Company Note shall bear simple interest,
          compounded annually, at the rate equal to the applicable interest rate
          contained in the Company's revolving credit facility in effect as of
          the Section 9(b)(ii) Sale Date, and (III) all amounts of interest and
          principal with respect to the Company Note shall become payable only
          upon the earlier to occur of (1) the tenth anniversary of the Section
          9(b)(ii) Sale Date or (2) the first date upon which such Option Shares
          could have been sold in accordance with Section 4.2 or Section 10.
          Notwithstanding the foregoing, in the event that any Non-YBR Holder
          requests that the Company provide him with a loan pursuant to Section
          9(b)(iii), the Company may, in lieu of making such loan, elect to
          extend the period during which an Option may be exercised following
          the Non-YBR Holder's termination of employment (the "EXTENSION
          PERIOD"); PROVIDED, HOWEVER, that such Extension Period may not extend
          beyond the date the Option would otherwise have terminated in
          accordance with the terms of the applicable Option Agreement; and
          PROVIDED, FURTHER, that (x) unless otherwise determined by the
          Company, the Non-YBR Holder may not undertake any Section 9(b)(ii)
          Sale during the Extension Period, (y) during the Extension Period the
          terms of Section 9(b)(iii) shall not apply, and (z) upon the
          termination of the Extension Period the terms of this Section 9(b)(ii)
          and Section 9(b)(iii) shall apply.

                    (iii) Upon the advanced written request of any applicable
          Non-YBR Holder, in connection with the exercise of any Options
          following a Section 9(b) Termination, the Company shall loan the
          Non-YBR Holder an amount equal to the sum of (A) the aggregate
          exercise price for all Option Shares (B) the

                                       21
<Page>

          amount of incremental income taxes payable by the Non-YBR Holder in
          connection the exercise of such Options (the "INCREMENTAL TAX AMOUNT")
          (which amount shall be utilized to pay such aggregate exercise price
          and Incremental Tax Amount). Such loan shall be made as of the date
          the Options are exercised and shall be evidenced by a full recourse
          promissory note (a "NON-YBR HOLDER NOTE"), payable to the Company, in
          a principal amount equal to the sum of (A) such aggregate exercise
          price and (B) the Incremental Tax Amount. Each Non-YBR Holder Note
          shall bear simple interest, compounded annually, at the rate equal to
          the market rate in effect as of the date of exercise of the Options.
          All interest and principal with respect to a Non-YBR Holder Note shall
          become payable only upon the earlier to occur of (x) the seven month
          anniversary of the date the loan is made or (y) the first date upon
          which such Option Shares could have been sold in accordance with
          Section 4.2 or Section 10. Unless otherwise agreed to by the Company
          and the Non-YBR Holder, upon the Section 9(b)(ii) Sale Date the
          Company shall, in lieu of issuing a Company Note pursuant to the terms
          of Section 9(b)(ii): (1) cancel the applicable Non-YBR Holder Note and
          (2) issue a Company Note in the principal amount equal to the excess
          of (A) the otherwise applicable principal amount of such Company Note
          as determined in accordance with Section 9(b)(ii)(C)(I) over (B) the
          accreted principal amount of the Non-YBR Holder Note.

          (c) The closing of the purchase or sale of the shares of Common Stock
     and shares of Preferred Stock, pursuant to this Section 9 shall take place
     on a date designated by the Company, one of its subsidiaries, or YBR, as
     applicable, consistent with the terms of Section 9(a) or 9(b). The Company,
     one of its subsidiaries, or YBR, as applicable, will pay for the shares of
     Common Stock and shares of Preferred Stock purchased or sold pursuant to
     this Section 9 by delivery of a check or wire transfer of funds, in
     exchange for the delivery by the Non-YBR Holder of the certificates
     representing such shares of Common Stock and shares of Preferred Stock,
     duly endorsed for transfer to the Company or YBR. The Company shall have
     the right to record such transfer on its books and records without the
     consent of the Non-YBR Holder.

          (d) Notwithstanding anything to the contrary contained in this
     Agreement, all purchases of shares of Common Stock and shares of Preferred
     Stock by the Company shall be subject to applicable restrictions contained
     in federal law and the Delaware General Corporation Law and in the
     Company's and its respective subsidiaries' debt and equity financing
     agreements. Notwithstanding anything to the contrary contained in this
     Agreement, if any such restrictions prohibit or otherwise delay the
     purchase of the shares of Common Stock and shares of Preferred Stock
     hereunder which the Company is otherwise entitled or required to make, then
     the Company shall make such purchases within 30 days of the date that it is
     permitted to do so under such restrictions. Notwithstanding anything to the
     contrary contained in this Agreement, the Company and its subsidiaries may
     not effectuate any transaction contemplated by this Section 9 if such
     transaction would violate the terms of any Material Agreement; PROVIDED,
     HOWEVER, that to the extent that such transaction becomes permissible
     pursuant to the terms of such Material Agreement, the Company will
     effectuate such transaction as of the date that such transaction first
     becomes permissible under the applicable Material Agreement and,

                                       22
<Page>

     with respect to any shares of Common Stock or Preferred Stock that are
     distributed to any Non-YBR Holder pursuant to any deferred compensation
     plan which such Non-YBR Holder requests to sell pursuant to Section 9(b)(i)
     but which sale is not permitted pursuant to this Section 9(d), then the
     Company shall loan the Non-YBR Holder an amount equal to the amount of
     incremental income taxes payable by the Non-YBR Holder in connection with
     such distribution from the deferred compensation plan. Any loan described
     in the preceding sentence shall be evidenced by a full recourse promissory
     note, payable to the Company, in a principal amount equal to the amount of
     such incremental income taxes, which shall be become payable upon the
     earliest to occur of (x) the tenth anniversary of the date the loan is
     made, (y) the date the Company repurchases such shares pursuant to Section
     9(b)(i) and this Section 9(d) or (z) the date such shares are disposed of
     in accordance with Section 4.2 or Section 10. In addition, such note shall
     be subject to such other terms as described in Section 9(b)(iii) with
     respect to the Non-YBR Holder Note.

          (e) In the event that shares of Common Stock and shares of Preferred
     Stock are purchased or sold pursuant to this Section 9, the Non-YBR Holder,
     and such Non-YBR Holder's successors, assigns or representatives, will take
     all steps necessary and desirable to obtain all required third-party,
     governmental and regulatory consents and approvals and take all other
     actions necessary and desirable to facilitate consummation of such
     repurchase in a timely manner.

     Section 10. PIGGY-BACK REGISTRATION RIGHTS.

          (a) PARTICIPATION. Subject to Section 10(b), if at any time after the
     date hereof the Company files a Registration Statement (other than a
     registration on Form S-4 or S-8 or any successor form to such Forms or any
     registration of securities as it relates to an offering and sale to
     management of the Company pursuant to any employee stock plan or other
     employee benefit plan arrangement) with respect to an offering that
     includes any shares of Common Stock or Preferred Stock, then the Company
     shall give prompt notice (the "INITIAL NOTICE") to the Non-YBR Holders and
     the Non-YBR Holders shall be entitled to include in such Registration
     Statement the Registrable Securities (as defined in Section 10(f)) held by
     them. If the Non-YBR Holders elect to include any or all of their
     Registrable Securities in such Registration Statement, then the Company
     shall give prompt notice (the "PIGGYBACK NOTICE") to each Holder (excluding
     the Non-YBR Holders) and each such Holder shall be entitled to include in
     such Registration Statement the Registrable Securities held by it. The
     Initial Notice and Piggyback Notice shall offer the Non-YBR Holders and the
     Holders, respectively, the right, subject to Section 10(b) (the "PIGGY BACK
     REGISTRATION RIGHT"), to register such number of shares of Registrable
     Securities as each Non-YBR Holder and each Holder may request and shall set
     forth (i) the anticipated filing date of such Registration Statement and
     (ii) the number of shares of Common Stock or Preferred Stock that is
     proposed to be included in such Registration Statement. Subject to Section
     10(b), the Company shall include in such Registration Statement such shares
     of Registrable Securities for which it has received written requests to
     register such shares within 15 days after the Initial Notice and 7 days
     after the Piggyback Notice has been given.

                                       23
<Page>

          (b) UNDERWRITER'S CUTBACK. Notwithstanding the foregoing, if a
     registration pursuant to this Section 10 involves an Underwritten Offering
     (as defined in Section 10(f)) and the managing underwriter or underwriters
     of such proposed Underwritten Offering delivers an opinion to the Holders
     that the total or kind of securities which such Holders and any other
     persons or entities intend to include in such offering would be reasonably
     likely to adversely affect the price, timing or distribution of the
     securities offered in such offering, then the Company shall include in such
     registration (i) first, 100% of the securities the Company, or the Person
     initiating such registration, proposes to sell, and (ii) second, to the
     extent of the amount of securities which all other Holders have requested
     to be included in such registration, which, in the opinion of the managing
     underwriter or underwriters, can be sold without such adverse effect
     referred to above, such amount to be allocated pro rata among all other
     Holders based upon the relative aggregate amount of gross proceeds to be
     received by any other Holders in the offering (and for purposes of
     calculating the foregoing amount, any shares sold by a Non-YBR Holder to
     the Company pursuant to a Section 9(b)(ii) Sale shall be deemed to be the
     first shares available to be included in such Underwritten Offering by such
     Non-YBR Holder).

          (c) COMPANY CONTROL. The Company may decline to file a Registration
     Statement after giving the Initial Notice or the Piggyback Notice, or
     withdraw a Registration Statement after filing and after such Piggyback
     Notice, but prior to the effectiveness of the Registration Statement,
     provided that the Company shall promptly notify each Holder in writing of
     any such action and provided further that the Company shall bear all
     reasonable expenses incurred by such Holder or otherwise in connection with
     such withdrawn Registration Statement. Notwithstanding any other provision
     herein, the Company shall have sole discretion to select any and all
     underwriters that may participate in any Underwritten Offering.

          (d) PARTICIPATION IN UNDERWRITTEN OFFERINGS. No Person may participate
     in any Underwritten Offering hereunder unless such Person (i) agrees to
     sell such Person's securities on the basis provided in any underwriting
     arrangements approved by the Persons entitled to approve such arrangements
     and (ii) completes and executes all questionnaires, powers of attorney,
     indemnities, underwriting agreements, lock-ups and other documents required
     for such underwriting arrangements. Nothing in this Section 10(d) shall be
     construed to create any additional rights regarding the piggyback
     registration of Registrable Securities in any Person otherwise than as set
     forth herein.

          (e) EXPENSES. The Company or YBR will pay all registration expenses in
     connection with each registration of Registrable Securities requested
     pursuant to this Section 10; provided, that each Holder shall pay all
     applicable underwriting fees, discounts and similar charges.

          (f) CERTAIN DEFINITIONS. For purposes of this Section 10:

              (i)   "REGISTRABLE SECURITIES" shall mean (A) all Initial
Purchased Shares, and (B) all Non-Initial Purchased Shares; PROVIDED, HOWEVER,
that Non-Initial Purchased Shares shall only be deemed to be Registrable
Securities following the date that the Apollo Group has sold shares of Common
Stock in registered offerings in exchange for net proceeds at

                                       24
<Page>

least equal to the amount of the aggregate amount paid by the Apollo Group for
all shares of Common Stock purchased by the Apollo Group during the period
beginning on the Original Issue Date and ending on the date of any such
registered offering; and, PROVIDED, FURTHER, that any Registrable Securities
shall cease to be Registrable Securities when (I) a registration statement with
respect to the sale of such Registrable Securities has been declared effective
under the Securities Act and such Registrable Securities have been disposed of
in accordance with the plan of distribution set forth in such registration
statement, (II) such Registrable Securities are distributed pursuant to Rule 144
(or any similar provision then in force) under the Securities Act or (III) such
Registrable Securities shall have been otherwise transferred and new
certificates for them not bearing a legend restricting further transfer under
the Securities Act shall have been delivered by the Company; and PROVIDED,
FURTHER, that any securities that have ceased to be Registrable Securities shall
not thereafter become Registrable Securities and any security that is issued or
distributed in respect of securities that have ceased to be Registrable
Securities is not a Registrable Security. Notwithstanding any other provision of
this Section 10(f)(i), with respect to any Registration Statement that registers
shares of Common Stock, "Registrable Securities" shall only include shares of
Common Stock and with respect to any Registration Statement that registers
shares of Preferred Stock, "Registrable Securities" shall only include share of
Preferred Stock.

              (ii) "UNDERWRITTEN OFFERING" means a sale of shares of Common
Stock or Preferred Stock to an underwriter for reoffering to the public.

     Section 11. MISCELLANEOUS PROVISIONS.

                 (a)  All questions concerning the construction, interpretation
          and validity of this Agreement shall be governed by and construed in
          accordance with the domestic laws of the State of New York without
          giving effect to any choice or conflict of law provision or rule
          (whether in the State of New York or any other jurisdiction) that
          would cause the application of the laws of any jurisdiction other than
          the State of New York.

                 (b)  Whenever the context requires, the gender of all words
          used herein shall include the masculine, feminine and neuter, and the
          number of all words shall include the singular and plural.

                 (c)  This Agreement shall be binding upon the Company, the
          Non-YBR Holders, any spouses of the Non-YBR Holders, and their
          respective heirs, executors, administrators and permitted successors
          and assigns.

                 (d)  This Agreement may be amended or waived from time to time
          by an instrument in writing signed by the Company and the Holders
          having the Required Voting Percentage, PROVIDED, that this Agreement
          may be amended by the Company without the consent of any Holder to
          cure any ambiguity or to cure, correct or supplement any defective
          provisions contained herein, or to make any other provisions with
          respect to matters or questions hereunder as the Company may deem
          necessary or advisable so long as such action does not affect
          adversely the interest of any Holder.

                                       25
<Page>

                 (e)  This Agreement shall terminate automatically upon: (i) the
          dissolution of the Company; (ii) the occurrence of any event which
          reduces the number of Holders to one in accordance with the terms
          hereof; or (iii) the consummation of a Control Disposition.

                 (f)  Any Holder who disposes of all of his, her or its Common
          Stock and Preferred Stock in conformity with the terms of this
          Agreement shall cease to be a party to this Agreement and shall have
          no further rights hereunder.

                 (g)  The spouses of the individual Non-YBR Holders are fully
          aware of, understand and fully consent and agree to the provisions of
          this Agreement and its binding effect upon any community property
          interests or similar marital property interests in the Common Stock
          and Preferred Stock they may now or hereafter own, and agree that the
          termination of their marital relationship with any Non-YBR Holder for
          any reason shall not have the effect of removing any Common Stock and
          Preferred Stock of the Company otherwise subject to this Agreement
          from the coverage of this Agreement and that their awareness,
          understanding, consent and agreement are evidenced by their signing
          this Agreement. Furthermore, each individual Non-YBR Holder agrees to
          cause his or her spouse (and any subsequent spouse) to execute and
          deliver, upon the request of the Company, a counterpart of this
          Agreement, or an Adoption Agreement substantially in the form of
          EXHIBIT A or in a form satisfactory to the Company.

                 (h)  Any Disposition or attempted Disposition in breach of this
          Agreement shall be void and of no effect; PROVIDED, that the Company
          may determine to treat any attempted Disposition in breach of this
          Agreement, as an Offer pursuant to Section 2.5. Additionally, Section
          4 shall apply to such attempted Disposition; PROVIDED, HOWEVER, that
          the time periods set forth in that Section shall begin to run as of
          the date the Company receives evidence satisfactory to it of such
          attempted Disposition. In connection with any attempted Disposition in
          breach of this Agreement, the Company may hold and refuse to transfer
          any Common Stock or any certificate therefor or any Note tendered to
          it for transfer, in addition to and without prejudice to any and all
          other rights or remedies which may be available to it or the Holders.
          Each party to this Agreement acknowledges that a remedy at law for any
          breach or attempted breach of this Agreement will be inadequate,
          agrees that each other party to this Agreement shall be entitled to
          specific performance and injunctive and other equitable relief in case
          of any such breach or attempted breach and further agrees to waive (to
          the extent legally permissible) any legal conditions required to be
          met for the obtaining of any such injunctive or other equitable relief
          (including posting any bond in order to obtain equitable relief).

                 (i)  Each individual Non-YBR Holder and his or her spouse, if
          any, hereby appoints the Company as their agent and attorney-in-fact
          to make the Offers required and take all actions necessary under
          Sections 2.1 through 2.5 and Section 6 on their behalf and to execute
          any required Adoption Agreement on

                                       26
<Page>

          their behalf, and expressly bind themselves to such Offers and to the
          Company's execution of any such Adoption Agreement without further
          action on their part, and all such powers of attorney granted herein
          are deemed to be coupled with an interest in the Common Stock and
          Preferred Stock shall survive the death, disability, bankruptcy or
          dissolution of such Non-YBR Holder or his or her spouse, if any.

                 (j)  This Agreement may be executed simultaneously in two or
          more counterparts, any one of which need not contain the signatures of
          more than one party, but all such counterparts taken together will
          constitute one and the same agreement. It shall not be necessary in
          making proof of this Agreement to produce or account for more than one
          such counterpart. The failure of any Holder to execute this Agreement
          does not make it invalid as against any other Holder.

                 (k)  Whenever possible, each provision of this Agreement will
          be interpreted in such manner as to be effective and valid under
          applicable law, but if any provision of this Agreement is held to be
          invalid, illegal or unenforceable in any respect under any applicable
          law or rule in any jurisdiction, such invalidity, illegality or
          unenforceability will not affect any other provision or any other
          jurisdiction, and such invalid, void or otherwise unenforceable
          provisions shall be null and void. It is the intent of the parties,
          however, that any invalid, void or otherwise unenforceable provisions
          be automatically replaced by other provisions which are as similar as
          possible in terms to such invalid, void or otherwise unenforceable
          provisions but are valid and enforceable to the fullest extent
          permitted by law.

                 (l)  Each party hereto shall do and perform or cause to be done
          and performed all such further acts and things and shall execute and
          deliver all such other agreements, certificates, instruments, and
          documents as any other party hereto reasonably may request in order to
          carry out the provisions of this Agreement and the consummation of the
          transactions contemplated hereby.

                 (m)  The parties to this Agreement agree that jurisdiction and
          venue in any action brought by any party hereto pursuant to this
          Agreement shall properly (but not exclusively) lie in any federal or
          state court located in the State of New York. By execution and
          delivery of this Agreement, the parties hereto irrevocably submit to
          the jurisdiction of such courts for himself and in respect of his
          property with respect to such action. The parties hereto irrevocably
          agree that venue would be proper in such court, and hereby waive any
          objection that such court is an improper or inconvenient forum for the
          resolution of such action. The parties further agree that the mailing
          by certified or registered mail, return receipt requested, of any
          process required by any such court shall constitute valid and lawful
          service of process against them, without necessity for service by any
          other means provided by statute or rule of court.

                 (n)  No course of dealing between the Company, or its
          subsidiaries, and the Holders (or any of them) or any delay in
          exercising any rights hereunder will

                                       27
<Page>

          operate as a waiver of any rights of any party to this Agreement. The
          failure of any party to enforce any of the provisions of this
          Agreement will in no way be construed as a waiver of such provisions
          and will not affect the right of such party thereafter to enforce each
          and every provision of this Agreement in accordance with its terms.

                 (o)  BECAUSE DISPUTES ARISING IN CONNECTION WITH COMPLEX
          FINANCIAL TRANSACTIONS ARE MOST QUICKLY AND ECONOMICALLY RESOLVED BY
          AN EXPERIENCED AND EXPERT PERSON AND THE PARTIES WISH APPLICABLE STATE
          AND FEDERAL LAWS TO APPLY (RATHER THAN ARBITRATION RULES), THE PARTIES
          DESIRE THAT THEIR DISPUTES BE RESOLVED BY A JUDGE APPLYING SUCH
          APPLICABLE LAWS. THEREFORE, TO ACHIEVE THE BEST COMBINATION OF THE
          BENEFITS OF THE JUDICIAL SYSTEM AND OR ARBITRATION, THE PARTIES HERETO
          WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, SUIT OR PROCEEDING
          BROUGHT TO ENFORCE OR DEFEND ANY RIGHT OR REMEDIES UNDER THIS
          AGREEMENT OR ANY DOCUMENTS RELATED HERETO.

                 (p)  This Agreement sets forth the entire agreement of the
          parties hereto as to the subject matter hereof and supersedes all
          previous agreements among all or some of the parties hereto, whether
          written, oral or otherwise. Unless otherwise provided herein, any
          consent required by the Company may be withheld by the Company in its
          sole discretion.

                 (q)  No Person not a party to this Agreement, as a third party
          beneficiary or otherwise, shall be entitled to enforce any rights or
          remedies under this Agreement.

                 (r)  If, and as often as, there are any changes in the Common
          Stock or Preferred Stock by way of stock split, stock dividend,
          combination or reclassification, or through merger, consolidation,
          reorganization or recapitalization, or by any other means, appropriate
          adjustment shall be made in the provisions of this Agreement, as may
          be required, so that the rights, privileges, duties and obligations
          hereunder shall continue with respect to the Common Stock or Preferred
          Stock as so changed.

                 (s)  No director of the Company shall be personally liable to
          the Company or any Holder as a result of any acts or omissions taken
          under this Agreement in good faith.

                 (t)  Except for Dispositions allowed under Section 4.2 or
          Section 9, if the Company proposes for any reason to register shares
          of Common Stock or Preferred Stock under the Securities Act, the
          Non-YBR Holders shall not engage in, or permit a Disposition of, any
          shares of Common Stock or Preferred Stock without the prior written
          consent of the Company for a period as shall be determined by the
          managing underwriters, which period cannot last more than one

                                       28
<Page>

          hundred and eighty (180) days after the effective date of such
          registration statement.

                 (u)  In the event additional shares of Common Stock or
          Preferred Stock are issued by the Company to a Holder at any time
          during the term of this Agreement, either directly or upon the
          exercise or exchange of securities of the Company exercisable for or
          exchangeable into shares or Common Stock or Preferred Stock, such
          additional shares of Common Stock or Preferred Stock, as a condition
          to such issuance, become subject to the terms and provisions of this
          Agreement.

                 (v)  Notwithstanding anything to the contrary contained herein,
          YBR may assign its rights or obligations, in whole or in part, under
          this Agreement to one or more of its Affiliates.

                 (w)  In the event that any member of YBR becomes an owner of
          Common Stock or Preferred Stock of the Company, such member shall
          automatically become a party to this Agreement and this Agreement
          shall be amended and restated to provide that the Apollo Group or a
          designee of the Apollo Group shall have all of the rights of YBR
          hereunder.

                                       29
<Page>

          This Agreement is executed by the Company and by each Holder and
spouse of a Non-YBR Holder to be effective as of the date first above written.

                                        COMPANY

                                        SALT HOLDINGS CORPORATION

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

                                        HOLDERS

                                        YBR HOLDINGS LLC

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

                                        NON-YBR HOLDERS

                                        See Annex II

                                       30
<Page>

                                    EXHIBIT A

                               ADOPTION AGREEMENT

          This Adoption Agreement ("Adoption") is executed pursuant to the terms
of the Investor Rights Agreement dated as of the Original Issue Date, a copy of
which is attached hereto (the "Investor Rights Agreement"), by the transferee
("Transferee") executing this Adoption. By the execution of this Adoption, the
Transferee agrees as follows:

          (1)  ACKNOWLEDGEMENT. Transferee acknowledges that Transferee is
               acquiring certain shares of Common Stock and/or Preferred Stock
               of Salt Holdings Corporation, a Delaware corporation (the
               "Company"), subject to the terms and conditions of the Investor
               Rights Agreement, among the Company and the Holders party
               thereto. Capitalized terms used herein without definition are
               defined in the Investor Rights Agreement and are used herein with
               the same meanings set forth therein.

          (2)  AGREEMENT. Transferee (i) agrees that the shares of Common Stock
               and/or Preferred Stock acquired by Transferee, and certain other
               shares of Common Stock, Preferred Stock , and other securities
               that may be acquired by Transferee in the future, shall be bound
               by and subject to the terms of the Investor Rights Agreement,
               pursuant to the terms thereof, and (ii) hereby adopts the
               Investor Rights Agreement with the same force and effect as if he
               were originally a party thereto.

          (3)  NOTICE. Any notice required as permitted by the Investor Rights
               Agreement shall be given to Transferee at the address listed
               beside Transferee's signature below.

          (4)  JOINDER. The spouse of the undersigned Transferee, if applicable,
               executes this Adoption to acknowledge its fairness and that it is
               in such spouse's best interest, and to bind such spouse's
               community interest, if any, in the shares of Common Stock,
               Preferred Stock, and other securities referred to above and in
               the Investor Rights Agreement, to the terms of the Investor
               Rights Agreement.

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

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

                                       31
<Page>

                                                                         ANNEX I

                                       32
<Page>

                                                                        ANNEX II

          (i)   If to the Company:

                        Salt Holdings Corporation
                        8300 College Park Boulevard
                        Overland Park, Kansas 66210
                        Attention: Vice President-Human Resources

                with a copy to:

                        Latham & Watkins
                        885 Third Avenue
                        New York, N.Y. 10022-4802
                        Attention: Raymond Y. Lin, Esq.

          (ii)  If to YBR:

                        YBR Holdings LLC
                        c/o Apollo Management, L.P.
                        1301 Avenue of the Americas
                        New York, NY 10019
                        Attention: Scott Kleinman

                with a copy to:

                        Latham & Watkins
                        885 Third Avenue
                        New York, N.Y. 10022-4802
                        Attention: Raymond Y. Lin, Esq.

          (iii) If to any Non-YBR Holder, to the address set forth with respect
to such Non-YBR Holder in the Company's records.

                                    * * * * *

                                       33
<Page>

                                                   NON-YBR HOLDERS

                                                   ----------------------------
                                                   Robert Clark

                                                   ----------------------------
                                                   Keith Clark

                                                   ----------------------------
                                                   David Goadby

                                                   ----------------------------
                                                   Rodney Underdown

                                                   ----------------------------
                                                   Steve Wolf

                                                   ----------------------------
                                                   Eric Beaumont

                                       34<Page>

                                                                   EXHIBIT 10.13

================================================================================

                             STOCK RIGHTS AGREEMENT

                                      among

                            SALT HOLDINGS CORPORATION
                             a Delaware corporation
                                   (Company),

                            APOLLO MANAGEMENT V L.P.
                         a Delaware limited partnership
                              (Apollo Management),

                    The Stockholders Identified on Schedule A

                                       and

                                 IMC GLOBAL INC.
                             a Delaware corporation
                                  (IMC Global)

================================================================================

<Page>

                                TABLE OF CONTENTS

<Table>
<Caption>
                                                                            Page
                                                                            ----
<S>                                                                           <C>
SECTION 1 DEFINITIONS:.........................................................1

      1.1   As used in this Agreement, the following terms have the
              following meanings:..............................................1

SECTION 2 TRANSFER AND CLAWBACK RIGHTS........................................10

      2.1   Securities Held by Escrow Agent...................................10
      2.2   Transfer..........................................................10
      2.3   Compliance with the Escrow Agreement..............................11
      2.4   Clawback Determination............................................11
      2.5   Clawback of Securities, Securities Proceeds.......................12
      2.6   Clawback Notice...................................................12
      2.7   The IMC Stockholder Covenant......................................13
      2.8   Certificated Securities and Payment of Proceeds...................13

SECTION 3 BRING-ALONG RIGHTS..................................................13

SECTION 4 TAG-ALONG RIGHTS....................................................15

SECTION 5 VOTING OF IMC COMMON STOCK..........................................16

SECTION 6 REGISTRATION RIGHTS.................................................16

      6.1   Demand Registration...............................................16
      6.2   Underwriting......................................................17
      6.3   Deferral..........................................................17
      6.4   Survival..........................................................17
      6.5   This Section 6 shall remain in full force and effect
              following any Exit Event........................................17
      6.6   IMC Transaction Stock.............................................17

SECTION 7 PIGGYBACK REGISTRATION RIGHTS.......................................18
</Table>

                                        i
<Page>

<Table>
<S>                                                                           <C>
SECTION 8 REGISTRATION PROCEDURES.............................................19

      8.1   Holdback Agreements...............................................19
      8.2   Expenses..........................................................19
      8.3   Registration Procedures...........................................19
      8.4   Conditions to Stockholder Rights; Indemnification by
              Stockholder.....................................................22
      8.5   Indemnification by Company........................................23

SECTION 9 ADDITIONAL COMPANY EQUITY ISSUANCES TO APOLLO STOCKHOLDERS..........23

SECTION 10 TRANSACTIONS WITH AFFILIATES AND OTHERS............................23

SECTION 11 MISCELLANEOUS......................................................24

      11.1  Termination.......................................................24
      11.2  Legends...........................................................24
      11.3  Successors, Assigns and Transferees...............................25
      11.4  Specific Performance..............................................25
      11.5  Governing Law.....................................................25
      11.6  Submission to Jurisdiction; Waiver of Jury Trial..................25
      11.7  Interpretation....................................................25
      11.8  Representation....................................................25
      11.9  Notices...........................................................25
      11.10 Recapitalization, Exchange, Etc...................................26
      11.11 Counterparts......................................................27
      11.12 Severability......................................................27
      11.13 Amendment.........................................................27
</Table>

                                       ii
<Page>

                            SALT HOLDINGS CORPORATION
                             STOCK RIGHTS AGREEMENT

          This Stock Rights Agreement ("AGREEMENT") is entered into as of
November 28, 2001 by and among Salt Holdings Corporation, a Delaware corporation
(the "COMPANY"), Apollo Management V L.P., a Delaware limited partnership
("APOLLO MANAGEMENT"), each of the stockholders of the Company listed on
Schedule A attached hereto (such listed stockholders collectively and together
with Apollo Management referred to as the "APOLLO INVESTORS") and IMC Global
Inc., a Delaware corporation ("IMC GLOBAL" and together with the Apollo
Investors, the "INITIAL STOCKHOLDERS").

                                    RECITALS

          WHEREAS, the Parties are each parties to that certain Agreement and
Plan of Merger dated as of October 13, 2001 (the "MERGER AGREEMENT");

          WHEREAS, as a condition of consummating the transactions contemplated
by the Merger Agreement, the Initial Stockholders are executing this Agreement;

          WHEREAS, the Company and the Initial Stockholders desire to enter into
this Agreement to provide for certain matters with respect to the ownership and
transfer of Securities now held of record or beneficially by, or hereafter
acquired by, any Stockholder.

                                    AGREEMENT

          NOW, THEREFORE, in consideration of the foregoing, and the mutual
agreements set forth herein and other good and valuable consideration, the
receipt and adequacy of which is hereby acknowledged, the Parties hereto,
intending to be legally bound, hereby agree as follows:

SECTION 1 DEFINITIONS:

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

          "AGREED VALUE" shall mean with respect to (i) any number of shares of
IMC Preferred Stock, the relevant Liquidation Preference per share of Preferred
Stock multiplied by such number of shares of IMC Preferred Stock plus accrued
and unpaid dividends thereon or, if any IMC Preferred Stock has been exchanged
for Note Securities, the principal amount of such Note Securities plus accrued
and unpaid interest thereon, (ii) any number of shares of IMC Common Stock, the
relevant Transaction Common Share Price multiplied by such number of shares of
IMC Common Stock, (iii) any IMC Notes, the principal amount of such IMC Notes
plus accrued and unpaid interest thereon, and (iv) any Securities Proceeds, the
Fair Market Value of such Securities Proceeds, which, if cash, shall be the
amount of cash received in respect of such Securities Proceeds, and if Cash
Equivalents, shall be the Cash Equivalent Value.

          "APOLLO AFFILIATE" means Apollo Management and its affiliates,
including the Apollo Investors, other than any affiliate that is a portfolio
company of any investment fund that is an affiliate of Apollo Management.

<Page>

          "APOLLO COMMON STOCK" means the shares of Common Stock received by the
Apollo Investors pursuant to the Merger Agreement, including any shares of
Common Stock held by the Apollo Investors immediately after the Closing, and any
shares of Capital Stock received in distribution thereon or as the result of any
stock split, reverse stock split or recapitalization or in exchange for the
Apollo Common Stock.

          "APOLLO PREFERRED STOCK" means the shares of Preferred Stock received
by the Apollo Investors pursuant to the Merger Agreement, including any shares
of Preferred Stock held by the Apollo Investors immediately after the Closing,
and any debt securities of the Company or shares of Capital Stock received in
distribution thereon or as the result of any stock split, reverse stock split or
recapitalization or in exchange for the Apollo Preferred Stock.

          "APOLLO STOCKHOLDERS" means any of the Apollo Investors or any Person
to whom Securities are Transferred in accordance with the Syndication Option
provided for by SECTION 2.2(b), or any successor thereto. In the event that any
Apollo Investor distributes its Securities to its investors or to any of its
affiliates, then Apollo Stockholders shall include such distributees.

          "BOARD OF DIRECTORS" means the board of directors of the Company.

          "BRING-ALONG TAX AMOUNT" means the aggregate United States federal and
state corporate income tax that, to the extent an EMC Stockholder is treated as
the owner of IMC Common Stock transferred pursuant to SECTION 3 for income tax
purposes, the IMC Stockholder is expected to incur as a result of such transfer;
PROVIDED, HOWEVER, that (i) the amount of Bring-Along Tax Amount shall not
exceed the gain, if any, recognized by such IMC Stockholder from such transfer
multiplied by the combined federal and state tax rate applicable to such IMC
Stockholder for the relevant taxable year, (ii) the amount of Bring-Along Tax
Amount shall be adjusted taking into account any applicable net operating
losses, capital losses and carryovers of net operating losses and capital losses
then available to the IMC Stockholders, and (iii) before any Bring-Along Tax
Amount is taken into account, the WC Stockholder shall provide basis of the
computation of the Bring-Along Tax Amount to Apollo Management.

          "BUSINESS DAY" means any day that is not a Saturday, a Sunday or other
day on which banks are required or authorized by law to be closed in New York,
New York.

          "CAPITAL STOCK" means any and all shares of capital stock or any other
interest participation that confers on a Person the right to receive a share of
the profits and losses of, or distributions of assets of, the Person issuing
such capital stock or other interest participation.

          "CASH EQUIVALENT" means a class of equity securities that are publicly
traded and listed on the NASDAQ National Market or the New York Stock Exchange,
have readily ascertainable market prices and has a market capitalization of at
least $2 billion, a trading history of at least six (6) months, and are "freely
tradable" by the Apollo Stockholders with no legal or contractual restrictions
or obligations on transfer or sale, including pursuant to (a) applicable
securities laws, (b) agreements entered into in connection with the receipt of
the equity securities at issue or (c) agreements, including any agreements with
respect to debt, pursuant to which an event of default, "change of control"
provision, acceleration provision or restrictive covenant would be triggered or
breached; PROVIDED, HOWEVER, that if in the reasonable judgment of the Apollo
Stockholders, disposing of all such equity securities would require the services
of an underwriter or result in the Apollo Stockholders selling at a discount to
the then current

                                        2
<Page>

market price of such securities, such securities shall not be deemed to be Cash
Equivalents. For purposes of this definition, "freely tradable" shall mean that
the securities at issue are either registered under the Securities Act or may be
transferred pursuant to Rule 144 under the Securities Act without volume or
manner of sale limitations.

          "CASH EQUIVALENT VALUE" means, with respect to any Cash Equivalent,
the average of the closing price of such Cash Equivalent for the ten trading
days prior to the date of measurement less the amount of the brokerage
commission necessary for the sale of such Cash Equivalents.

          "CERTIFICATE OF DESIGNATION" means the Certificate of Designation of
the Preferred Stock.

          "CERTIFICATE OF INCORPORATION" means the Company's Certificate of
Incorporation, including all amendments thereto, as filed with the Secretary of
State of the State of Delaware as of the date hereof.

           "CLAWBACK DETERMINATION EVENT" means any event that is a Disposition
Event or the Exit Event.

          "CLAWBACK NOTICE" means any written notice delivered by the Apollo
Investors to the IMC Stockholders and the Escrow Agent specifying in reasonable
detail the calculation of any Clawback Rights and the date by which Securities
must be transferred to the Apollo Stockholders to satisfy the Clawback Rights or
consummate the Clawback Determination Event described in such notice and such
Clawback Notice shall comply with the requirements of the Escrow Agreement.

          "CLAWBACK RIGHTS" means the right by the Apollo Stockholders to
acquire Securities and Securities Proceeds pursuant to SECTION 2.5 upon the
occurrence of any Clawback Determination Event.

          "CLAWBACK TERMINATION DATE" means the date following the Exit Event
upon which the Clawback Rights have been fulfilled in accordance with the terms
hereof and the final Clawback Notice.

          "CLOSING" means the date that the Merger occurs.

          "COMMON SHARES SOLD" means the Apollo Common Stock (or any equity or
debt security or other interest received by the Apollo Stockholders in exchange
for shares of Apollo Common Stock), directly or indirectly, disposed of (or
deemed to have been disposed of) in the event of the realization of cash or Cash
Equivalents in any Clawback Determination Event; PROVIDED that in the event that
such Clawback Determination Event is the Exit Event, this definition shall be
modified as set forth in SECTION 2.4(b). In the event of a Clawback
Determination Event where the consideration consists of cash or Cash Equivalents
and other property, the deemed Common Shares Sold shall be that portion of the
Apollo Common Stock attributable to the cash and/or Cash Equivalent
consideration and the remaining portion shall not be deemed Common Shares Sold.
In determining the portion that is attributable to cash and Cash Equivalents and
the portion that is attributable to other property, the value of cash and Cash
Equivalents shall be the amount of cash or the Cash Equivalent Value and the
value of other property shall be the Fair Market Value of such other property at
the time of the Clawback Determination Event.

          "COMMON STOCK" means the Class A common stock, par value $0.01 per
share, of the Company, or if the Common Stock is no longer outstanding, the
class of Capital Stock issued in exchange for, or in lieu of, Common Stock.

                                        3
<Page>

          "COMPANY SALE" means any transaction or series of transactions as a
result of which one or more Persons acting as a group (other than any Apollo
Affiliate or IMC Stockholder or any affiliate of any IMC Stockholder) acquires
(i) equity securities of the Company constituting greater than fifty percent
(50%) of the Company's voting Common Stock (whether such transaction is effected
by merger, consolidation, recapitalization, sale or transfer of the Company's
equity or otherwise) or (ii) all or substantially all of the assets of the
Company and its subsidiaries.

          "CUMULATIVE SHORTFALL AMOUNT" means, with respect to any Subsequent
Clawback Determination Event, an amount equal to the sum of all Shortfall
Amounts in respect of all Prior Clawback Determination Events prior to such
Subsequent Clawback Determination Event, with each such Shortfall Amount being
grossed up at 22.75% per annum, compounded quarterly from the date of the
respective Prior Clawback Determination Event to which such Shortfall Amount
relates until the date of such Subsequent Clawback Determination Event.

          "DISPOSITION EVENT" means any direct or indirect realization of cash
or Cash Equivalents by the Apollo Stockholders that is not an Exit Event in
respect of Apollo Common Stock or in respect of any equity or debt security or
other interest received by the Apollo Stockholders in exchange for shares of
Apollo Common Stock; PROVIDED, that any distribution of Apollo Common Stock (i)
to the investors in any investment fund of the Apollo Investors, (ii) to any
Apollo Affiliate, and (iii) prior to the first anniversary of the Closing in
accordance with the Syndication Option provided for by SECTION 2.2(b) or by the
subsequent transfer of such shares received pursuant to the Syndication Option
by such transferees to their affiliates, shall not constitute a Disposition
Event.

          "ESCROW AGENT" means The Bank of New York, a New York banking
corporation.

          "ESCROW AGREEMENT" means that certain Escrow Agreement, dated as of
November 28, 2001, among the Company, the Escrow Agent, the IMC Stockholders and
the Apollo Investors, pursuant to which the Escrow Agent shall hold and dispose
of Escrowed Securities and Securities Proceeds of Escrowed Securities in
accordance with the terms thereof.

          "ESCROWED SECURITIES" means, collectively, the shares of IMC Common
Stock, the shares of IMC Preferred Stock, the IMC Notes, any shares of stock or
notes issued in exchange for any of the foregoing and any shares of stock or
notes distributed on account of any of the foregoing, at any time while any such
shares or notes are required to be held in escrow by the Escrow Agent pursuant
to the Escrow Agreement.

          "EXCESS AMOUNT" means, with respect to any Subsequent Clawback
Determination Event, an amount equal the Transaction Common Share Price in such
Subsequent Clawback Determination Event minus the Threshold Price in such
Subsequent Clawback Determination Event multiplied by the number of Common
Shares Sold in such Subsequent Clawback Determination Event.

          "EXIT EVENT" means (i) the first direct or indirect realization of
cash or Cash Equivalents by the Apollo Stockholders in respect of Apollo Common
Stock or in respect of any equity or debt security or other interest received by
the Apollo Stockholders in exchange for shares of Apollo Common Stock where
after such realization of cash or Cash Equivalents the Apollo Stockholders, in
the aggregate, have disposed of for cash or Cash Equivalents, ninety percent
(90%) or more of the Apollo Common Stock initially issued to the Apollo
Investors pursuant to the Merger Agreement; PROVIDED, HOWEVER, that if the
Common Stock has no or nominal value, Exit Event shall mean the first direct or
indirect realization

                                        4
<Page>

of cash disposition by the Apollo Stockholders in respect of Apollo Preferred
Stock or in respect of any equity or debt security or other interest received by
the Apollo Stockholders in exchange for shares of Apollo Preferred Stock,
including Note Securities, where after such realization of cash the Apollo
Stockholders, in the aggregate, have disposed of for cash ninety percent (90%)
or more of the Apollo Preferred Stock initially issued to the Apollo Investors
pursuant to the Merger Agreement or (ii) a Full Return Disposition Event.

          "FAIR MARKET VALUE" means, for any asset (other than cash or Cash
Equivalents), the value, as of any measurement date, of such asset as mutually
agreed by the Apollo Stockholders and the IMC Stockholders, and if no such
agreement is reached, by an independent nationally recognized investment banking
firm or "Big 5" accounting firm acting as a third party appraiser selected by
the Apollo Stockholders and reasonably acceptable to the IMC Stockholders, which
value shall take into consideration limitations on liquidity; PROVIDED, that to
the extent the asset at issue is equity securities that are publicly traded and
listed on the NASDAQ National Market or a national securities exchange, Fair
Market Value shall mean the average of the last reported sales prices of such
securities as reported by NASDAQ, National Market System, or if such securities
are listed on a securities exchange, the average of the last reported sales
prices of such securities on such exchange which shall be for consolidated
trading if applicable to such exchange, or if not so reported, the average of
the last reported bid prices of such securities, in each case for the ten (10)
trading days immediately after the measurement date (in any case, reduced by an
amount representing reasonable and customary underwriting discounts, reasonable
and customary block trade discounts or reasonable and customary brokerage
commissions, as the case may be). With respect to any Clawback Determination
Event or Subsequent Clawback Determination Event, the measurement date shall be
the date on which such Clawback Determination Event or Subsequent Clawback
Determination Event occurs.

          "FULL RETURN DISPOSITION EVENT" means, a Disposition Event in which
the sum of (i) the product of (a) the number of Common Shares Sold in such
Disposition Event multiplied by (b) the Transaction Common Share Price for such
Disposition Event plus, for each prior Disposition Event that has occurred (a
"PRIOR DISPOSITION EVENT") (ii) the product of (s) the number of Common Shares
Sold in such Prior Disposition Event multiplied by (t) the Transaction Common
Share Price realized in such prior Disposition Event (with the product obtained
in this clause (ii) added to the product obtained in clause (1) for each Prior
Disposition Event) is greater than the product of (x) the total number of shares
of Apollo Common Stock (whether or not disposed of previously) multiplied by (y)
the then current Threshold Price; PROVIDED that if such Disposition Event is
prior to the third anniversary of the Closing, the Threshold Price in clause (y)
shall equal the price set forth opposite the year 2004 in the definition of
Threshold Price below.

          "IMC COMMON STOCK" means the 1,038,700 shares of the Common Stock
received beneficially by IMC Global pursuant to the Merger Agreement and
deposited with the Escrow Agent to be held, in escrow, in accordance with the
Escrow Agreement, and any shares of Common Stock received in distribution
thereon or as the result of any stock split, reverse stock split or
recapitalization or in exchange for IMC Common Stock.

          "IMC NOTES" means the Company debt securities received beneficially by
IMC Global pursuant to the Merger Agreement, and any notes or other Securities
received in distribution thereon or in exchange therefor.

                                        5
<Page>

          "IMC PREFERRED STOCK" means the shares of Preferred Stock received
beneficially by IMC Global pursuant to the Merger Agreement, and any debt
securities of the Company or shares of Capital Stock received in distribution
thereon or as the result of any stock split, reverse stock split or
recapitalization or in exchange for the IMC Preferred Stock.

          "IMC REGISTERED STOCK" means the 357,000 shares of Common Stock
received by and registered in the name of IMC Global pursuant to the Merger
Agreement that are not subject to the terms and conditions of this Agreement,
and any shares of Common Stock received in distribution thereon or as the result
of any stock split, reverse stock split or recapitalization or in exchange for
IMC Registered Stock.

          "IMC STOCKHOLDER" means IMC Global.

          "IMC TRANSACTION STOCK" means the IMC Common Stock and the IMC
Registered Stock.

          "IPO DATE" means the date on which the Company consummates a Qualified
Public Offering.

          "LIQUIDATION PREFERENCE" has the meaning ascribed to such term in the
Certificate of Designation.

          "MANAGEMENT CONSULTING AGREEMENT" means that certain Management
Consulting Agreement dated as of November 28, 2001, by and between the Company
and Apollo Management, substantially consistent with the form attached as
EXHIBIT 1.1 (q) to the YBR Holdings LLC Disclosure Letter attached to the Merger
Agreement.

          "MERGER" means the merger of YBR Acquisition Corp., a Delaware
corporation, into the Company pursuant to the Merger Agreement.

          "NOTE SECURITIES" means the debt securities, if any, to be issued by
the Company in exchange for the Preferred Stock, and any notes or other
Securities received in distribution thereon or in exchange therefor.

          "NY UCC" means the Uniform Commercial Code as in effect from time to
time in the State of New York

          "OFFICERS' CERTIFICATE" means a certificate signed by two officers of
the signing entity, one of whom shall be the president, chief financial officer,
chief operating officer, or a vice president of the signing entity.

          "OTHER CASH RETURNS" means any cash dividends or other cash received
by the Apollo Stockholders in a distribution on shares of the Apollo Common
Stock or shares of the Apollo Preferred Stock or fees paid to the Apollo
Affiliates, excluding (i) cash Securities Proceeds received by any Apollo
Stockholder in connection with a Clawback Determination Event, (ii) fees,
reimbursement and indemnifications provided for by the Management Consulting
Agreement; PROVIDED that the fees under Section 6 thereof shall be excluded only
up to $3 million in the aggregate, (iii) amounts representing the stated
dividends on the Preferred Stock or the liquidation preference thereof, or (iv)
any reasonable and customary fees, stock options, reasonable out-of-pocket
expense reimbursements, coverage under

                                        6
<Page>

directors and officers insurance and indemnification protection for officers and
directors received by or covering any Apollo Stockholder.

          "PARTIES" means the Stockholders and the Company.

          "PERSON" means any natural person, corporation, limited partnership,
general partnership, limited liability company, joint stock company, joint
venture, association, company, trust or other organization, or any governmental
authority.

          "PRE-EMPTIVE PERCENTAGE" means, at any time, as to each IMC
Stockholder, the quotient obtained (expressed as a percentage) by dividing (i)
the number of shares of IMC Common Stock held by such IMC Stockholder by (ii)
the total number of shares of Common Stock issued and outstanding on the date of
determination.

          "PREFERRED STOCK" means the Series A Redeemable Exchangeable Preferred
Stock, par value $0.01 per share, of the Company, or if the Preferred Stock is
no longer outstanding, the Note Securities or other debt securities of the
Company or the class of Capital Stock issued in exchange for, or in lieu of,
Preferred Stock.

          "PRIOR CLAWBACK DETERMINATION EVENT" means any Clawback Determination
Event that results in the transfer of Securities or Securities Proceeds pursuant
to SECTION 2.5 and occurs prior to a Subsequent Clawback Determination Event.

          "QUALIFIED PUBLIC OFFERING" means an underwritten public offering of
Common Stock by the Company pursuant to an effective registration statement
filed by the Company with the Securities and Exchange Commission (other than on
Forms S-4 or S-8 or successors to such forms) under the Securities Act, after
which, cumulatively, more than twenty percent (20%) of the Company has been sold
to the public in one or more registered offerings.

          "REGISTRABLE COMMON STOCK" means all shares of Common Stock, whether
or not issued pursuant to the Merger Agreement and however and whenever
obtained, beneficially owned, or owned of record, by any Apollo Stockholder, any
IMC Stockholder or the Escrow Agent (in its capacity as such).

          "SECURITIES" means the Common Stock, the Preferred Stock and the IMC
Notes.

          "SECURITIES ACT" means the Securities Act of 1933, as amended.

          "SECURITIES PROCEEDS" means any dividend, interest payment,
distribution or other amount, whether in the form of cash or otherwise, received
in respect of, or upon any disposition of, any Securities, and any notes
(including Note Securities) or securities that are not Common Stock, Preferred
Stock or IMC Notes received in distribution upon or respect of, or in exchange
for, any Securities.

          "SHORTFALL AMOUNT" means, with respect to any Prior Clawback
Determination Event, an amount equal to (i) the Differential Amount in such
Prior Clawback Determination Event minus (ii) the sum of the Agreed Value of
Securities Proceeds plus the Agreed Value of IMC Preferred Stock plus the Agreed
Value of IMC Notes plus the Agreed Value of IMC Common Stock, in each case at
the time of the Prior Clawback Determination Event, transferred to the Apollo
Stockholders pursuant to SECTION 2.5 in such Prior Clawback Determination Event.

                                        7
<Page>

          "STOCKHOLDERS" means the IMC Stockholders and the Apollo Stockholders.

          "SUBSEQUENT CLAWBACK DETERMINATION EVENT" means any Clawback
Determination Event (which may also be the Exit Event), other than the first
Clawback Determination Event to occur.

          "THIRD PARTY PURCHASER" means any Person other than a Stockholder or
their Permitted Transferees who purchases or intends to purchase Common Stock
from any Stockholder or their Permitted Transferees.

          "THRESHOLD PRICE" means, as of each anniversary date of the Closing
indicated below, the price per share opposite such date.* For any date between
the dates indicated below, Threshold Price shall be the interpolated price
between the prices between such date, using a straight line average and the
actual number of days elapsed over 365 or 366, as the case may be. For any date
after the last date indicated below, the Threshold Price shall be the last price
per share indicated below as of that date grossed up at 22.75% per annum,
compounded quarterly until the date in question. In the event the Apollo
Stockholders receive Other Cash Returns, the Threshold Price at such time shall
be reduced by an amount equal to the amount of Other Cash Returns so received
divided by the number of shares of Apollo Common Stock then held by the Apollo
Stockholders, and all future Threshold Prices thereafter shall be reduced by
such amount. In the event of any stock split, stock dividend, reverse stock
split, or recapitalization ("RECAPITALIZATION"), the Threshold Price will be
adjusted such that the Threshold Price for one share of Common Stock immediately
prior to the Recapitalization shall equal (i) the Threshold Price for one share
of Common Stock immediately following the Recapitalization MULTIPLIED BY (ii)
the number of shares of Common Stock received in the Recapitalization in respect
of one share of Common Stock. The parties understand and acknowledge that the
implied total return on investment on shares of Common Stock and Preferred Stock
calculated in the Threshold Price takes into account the full dividend on the
Preferred Stock.

<Table>
<Caption>
               ANNIVERSARY DATE               PRICE
                     <S>                     <C>
                     2002                    $  13.56
                     2003                    $  18.16
                     2004                    $  24.08
                     2005                    $  31.67
                     2006                    $  41.37
                     2007                    $  53.75
                     2008                    $  69.50
                     2009                    $  89.51
                     2010                    $ 114.87
                     2011                    $ 146.98
                     2012                    $ 187.57
                     2013                    $ 238.82
                     2014                    $ 303.45
</Table>

          "TRANSACTION COMMON SHARE PRICE" means with respect to any Clawback
Determination Event, the cash or Cash Equivalents realized in respect of Common
Shares Sold divided by the number of Common Shares Sold; PROVIDED that in the
event that such Clawback Determination Event is the Exit Event, this definition
shall be modified as set forth in SECTION 2.4.

                                        8
<Page>

          "TRANSFER" means, sell, transfer, convey, assign, pledge, hypothecate
or otherwise dispose of

          (a)  The following terms have the meanings defined for such terms in
the Sections set forth below:

<Table>
<Caption>
               TERM                                          SECTION
               -----------------------------------------------------
               <S>                                          <C>
               Amendment                                       10(c)
               Apollo Investors                             Preamble
               Apollo Management                            Preamble
               Agreement                                    Preamble
               Bring-Along Notice                                  3
               Bring-Along Right                                   3
               Commission                                        8.3
               Company                                      Preamble
               Demand Notice                                     6.1
               Differential Amount                            2.4(a)
               IMC Global                                   Preamble
               Initial Stockholders                         Preamble
               Majority Period                                  5(b)
               Merger Agreement                             Recitals
               Other Registering Holders                           7
               Post Transaction Value                         2.4(b)
               Primary Registration                                7
               Prospectus                                        8.3
               Registering Stockholder                             7
               Registration Statement                            8.3
               Request Notice                                    6.1
               Requesting Stockholder                            6.1
               Sale Notice                                         4
               Secondary Registration                              7
               Syndication Option                             2.2(b)
               Tag-Along Stockholders                              4
               Tag-Along Notice                                    4
               Tag-Along Right                                     4
               Third Party Terms                                   3
               Vote                                             5(a)
               Vote Directing Party                             5(a)
</Table>

          (b)  Unless the context of this Agreement otherwise requires, (i)
words of any gender include each other gender; (ii) words using the singular or
plural number also include the plural or singular number, respectively; (iii)
the terms "hereof," "herein," "hereby" and derivative or similar words refer to
this entire Agreement; (iv) the term "Section" refers to the specified Section
of this Agreement; (v) the word "including" shall mean "including, without
limitation", and (vi) the word "or" shall be disjunctive but not exclusive.

          (c)  References to agreements and other documents shall be deemed to
include all subsequent amendments and other modifications thereto.

                                        9
<Page>

          (d)  References to statutes shall include all regulations promulgated
thereunder and references to statutes or regulations shall be construed as
including all statutory and regulatory provisions consolidating, amending or
replacing the statute or regulation.

          (e)  The language used in this Agreement shall be deemed to be the
language chosen by the Parties to express their mutual intent, and no rule of
strict construction shall be applied against either Party.

SECTION 2 TRANSFER AND CLAWBACK RIGHTS

    2.1   SECURITIES HELD BY ESCROW AGENT. On the date of the Closing at the
Effective Time (as such term in defined in the Merger Agreement), (i) all of the
shares of the IMC Common Stock will be issued by the Company in registered
certificated form in the name of the Escrow Agent and deposited with the Escrow
Agent (in its capacity as such) to be held, in escrow, in accordance with the
terms of the Escrow Agreement, (ii) all of the shares of the IMC Preferred Stock
will be issued by the Company in registered certificated form in the name of the
Escrow Agent and deposited with the Escrow Agent (in its capacity as such) to be
held, in escrow, in accordance with the terms the Escrow Agreement, and (iii)
all of the IMC Notes will be issued by the Company payable to the Escrow Agent
and deposited with the Escrow Agent (in its capacity as such) to be held, in
escrow, in accordance with the terms the Escrow Agreement.

    2.2   TRANSFER.

          (a)  Until the Clawback Termination Date, the Escrow Agent shall hold
in accordance with the terms of the Escrow Agreement and the Escrow Agent and
the IMC Stockholders shall not Transfer any IMC Common Stock, any IMC Preferred
Stock or any IMC Notes, any Securities Proceeds of any IMC Common Stock, any IMC
Preferred Stock or any IMC Notes, any interest in any IMC Common Stock, any IMC
Preferred Stock or any IMC Notes or any interest in any Securities Proceeds of
any IMC Common Stock, any WC Preferred Stock or IMC Notes to any Person, except
to an Apollo Stockholder pursuant to the Clawback Rights under SECTION 2.5 and
except for any Bring-Along Tax Amount transferred to any IMC Stockholder
pursuant to SECTION 3. After the Clawback Termination Date, the IMC Stockholders
shall hold the IMC Common Stock, the IMC Preferred Stock, the WC Notes and any
Securities Proceeds free of any restrictions under SECTION 2 of this Agreement.

          (b)  Subject to the provisions of SECTION 3 and SECTION 4, the Apollo
Stockholders may Transfer at any time, and from time to time, Apollo Common
Stock and any such Transfer that is a Clawback Determination Event shall trigger
the Clawback Rights, if applicable; PROVIDED, HOWEVER, until the first
anniversary of the Closing, the Apollo Stockholders shall have the option (the
"SYNDICATION OPTION") to Transfer, in one or a series of transactions, up to an
aggregate of one-third (1/3) of the Apollo Common Stock and any such Transfer
(i) shall at the time of Transfer be designated by the Transferring Apollo
Stockholders in a written notice to the IMC Stockholders as a Transfer under the
Syndication Option, (ii) shall not trigger the Clawback Rights for the
Transferring Apollo Stockholders and (iii) shall entitle any Person to whom such
shares of Apollo Common Stock are so Transferred to thereafter be deemed to be
an Apollo Stockholder for purposes of this Agreement and be entitled to the
Clawback Rights attributable to such shares of Apollo Common Stock upon any
future Clawback Determination Event; PROVIDED, that immediately after giving
effect to the Syndication Option, the Apollo Investors beneficially own a
majority of the outstanding Common Stock and possess the tight to elect at least
a majority of the Board of Directors of the Company. Any Transfer by any Apollo
Stockholder prior to the

                                       10
<Page>

first anniversary of the Closing that qualifies as a Clawback Determination
Event shall be a Clawback Determination Event unless such Transfer is designated
by the Transferring Apollo Stockholder as a Transfer under the Syndication
Option as set forth in the preceding sentence. The Apollo Investors shall cause
each transferee who is an Apollo Stockholder to be bound by the terms hereof.

    2.3   COMPLIANCE WITH THE ESCROW AGREEMENT. The IMC Stockholders and the
Escrow Agent agree that, subject to fulfilling the Clawback Rights on an ongoing
basis, all IMC Common Stock, all IMC Preferred Stock, all IMC Notes and all
Securities Proceeds of any IMC Common Stock, IMC Preferred Stock and IMC Notes
shall be held by the Escrow Agent in accordance with the terms of the Escrow
Agreement until the Clawback Termination Date and the termination of the Escrow
Agreement in accordance with its terms.

    2.4   CLAWBACK DETERMINATION.

          (a)  Upon the occurrence of any Clawback Determination Event, if the
Transaction Common Share Price is less than the Threshold Price at such time,
then the Escrow Agent as instructed under SECTION 2.5 shall transfer to the
Apollo Stockholders Securities and Securities Proceeds with an Agreed Value
equal to the Differential Amount. The "DIFFERENTIAL AMOUNT" shall be equal to
the Threshold Price minus the Transaction Common Share Price multiplied by the
number of Common Shares Sold in such Clawback Determination Event by the Apollo
Stockholders.

          (b)  Notwithstanding and in addition to the provisions of clause (a)
above, in the event that the Clawback Determination Event is the Exit Event, (i)
the Transaction Common Share Price shall be calculated as follows: (x) the total
amount of cash and Cash Equivalents received by the Apollo Stockholders for the
Common Shares Sold in the Exit Event plus the Post Transaction Value of the
equity in the Company (or its successor) or the acquiring entity of the Company
held by the Apollo Stockholders immediately following the Exit Event, if any,
plus the Fair Market Value of any other property received in the Exit Event for
Apollo Common Stock disposed of in the Exit Event and not otherwise included,
divided by (y) the total number of shares of Apollo Common Stock held by all of
the Apollo Stockholders immediately prior to the Exit Event, and (ii) Common
Shares Sold shall include the total number of shares of Apollo Common Stock held
by all of the Apollo Stockholders immediately prior to the Exit Event. "POST
TRANSACTION VALUE" shall mean the aggregate Fair Market Value of the equity in
the Company (or its successor) or the acquiring entity of the Company held by
the Apollo Stockholders immediately following the Exit Event; PROVIDED that the
determination of such Fair Market Value shall take into account the valuation of
the Company (or its successor) or the acquiring entity of the Company in the
transaction that constitutes the Exit Event.

          (c)  In the event of a Subsequent Clawback Determination Event in
which the Transaction Common Share Price is greater than the Threshold Price at
such time, the Apollo Stockholders shall deliver or cause to be delivered to the
Escrow Agent in accordance with the Escrow Agreement, Securities and Securities
Proceeds equal to the lesser of (i) the Securities and Securities Proceeds
transferred to the Apollo Stockholders pursuant to SECTION 2.5 in all Prior
Clawback Determination Events that have not been redeposited with the Escrow
Agent pursuant to this SECTION 2.4(c) and (ii) an amount of Securities and
Securities Proceeds with an Agreed Value equal to the applicable Excess Amount
minus the applicable Cumulative Shortfall Amount; PROVIDED, that in either case
(x) the Securities and Securities Proceeds to be so delivered shall be delivered
on a pro rata basis in the same proportions as the Securities and Securities
Proceeds transferred to the Apollo Stockholders pursuant to SECTION 2.5 in all
Prior Clawback Determination Events, (y) notwithstanding anything to the

                                       11
<Page>

contrary, with respect to Securities other than Common Stock and Securities
Proceeds, the Apollo Stockholders shall have the right to deliver or cause to be
delivered cash in lieu of such other Securities or Securities Proceeds equal to
the Agreed Value thereof and (z) if the Subsequent Clawback Determination Event
is the Exit Event, the Apollo Stockholders shall have the right to deliver or
cause to be delivered cash in whole or partial satisfaction of their obligations
under this SECTION 2.4(c) equal to the Agreed Value of the Securities and
Securities Proceeds that would have otherwise been delivered.

          (d)  All transfers of securities pursuant to this SECTION 2 shall be
effectuated to the nearest whole security for the purpose of avoiding the
transfer, or payment in cash in lieu of, fractional securities; PROVIDED that if
rounding to the nearest whole security would result in a per security value
differential greater than $10,000, such transfer shall either include securities
or, at the option of the Apollo Investors, be effectuated with cash payments in
lieu of fractional securities.

    2.5   CLAWBACK OF SECURITIES, SECURITIES PROCEEDS.

          (a)  If the Differential Amount is greater than zero, then the
Clawback Notice delivered by the Apollo Investors shall instruct the Escrow
Agent to transfer to the Apollo Stockholders (or to Third-Party Purchasers on
behalf of the Apollo Stockholders), first, the Securities Proceeds at Agreed
Value held by the Escrow Agent at such time, and second, on a pro rata basis,
the IMC Preferred Stock at Agreed Value, the IMC Notes at Agreed Value and the
IMC Common Stock at Agreed Value held by the Escrow Agent at such time. For
purposes of this SECTION 2.5(a), "pro rata" shall mean that the Securities to be
transferred pursuant to the Clawback Right shall be split among the IMC
Preferred Stock, the IMC Notes and the IMC Common Stock in amounts proportionate
to the total amount of IMC Preferred Stock at Agreed Value, the total amount of
IMC Notes at Agreed Value and the total amount of Common Stock at Agreed Value
held by the Agent at such time. If all such Securities and Securities Proceeds
are so transferred and the Clawback Right is not satisfied in full, then the IMC
Stockholders and the Escrow Agent shall have no further obligation to pay any
difference.

          (b)  To the extent the Apollo Investors have a final judgment of any
court of law or equity of competent jurisdiction that is unstayed for at least
sixty (60) days against IMC Global for indemnification under the Merger
Agreement, the Apollo Investors shall be entitled to satisfy such judgment, to
the extent such judgment is not otherwise satisfied, by delivering a Clawback
Notice to the Escrow Agent instructing the Escrow Agent to transfer to the
Apollo Investors, in accordance with the terms set forth in this SECTION 2.5,
Securities and Securities Proceeds with a Fair Market Value up to the amount of
such judgment; PROVIDED that any Preferred Stock, IMC Notes and Note Securities
transferred pursuant to this Section shall be valued at the respective Agreed
Value for each Security.

    2.6   CLAWBACK NOTICE.

          (a)  The Apollo Investors shall deliver to the IMC Stockholders and
the Escrow Agent a Clawback Notice in connection with each Clawback
Determination Event at least ten (10) Business Days prior to the Clawback
Determination Event. The Clawback Notice shall instruct the Escrow Agent, if
applicable, to (1) release any remaining Securities and Securities Proceeds to
the IMC Stockholders and (ii) terminate the Escrow Agreement in accordance with
the terms thereof. The Apollo Investors shall be entitled to deliver any
Clawback Notice either (i) in advance of a Clawback Determination Event
specifying that Securities shall be delivered to the Apollo Stockholders (or to
Third-Party Purchasers on behalf of the Apollo Stockholders) on a specified date
in order to consummate the Clawback Determination Event and fulfill the
corresponding Clawback Rights (which notice may be

                                       12
<Page>

conditional or contingent upon the consummation of such Clawback Determination
Event) or (ii) following the consummation of a Clawback Determination Event and
specifying that Securities shall be delivered to the Apollo Stockholders on a
specified date in order to fulfill the Clawback Rights in connection with the
already consummated Clawback Determination Event described in the Clawback
Notice. In the event that Securities are delivered pursuant to a Clawback Notice
in advance of the consummation of a Clawback Determination Event and either the
Clawback Determination Event is not thereafter consummated or the Clawback
Determination Event is consummated on terms different than those described in
the Clawback Notice, the Apollo Investors will deliver a written notice to the
Escrow Agent (which written notice shall be delivered to the IMC Stockholders
two (2) Business Days prior to delivery to the Escrow Agent) specifying in
reasonable detail a revised calculation of any Clawback Rights and, if
necessary, either (i) redeposit with the Escrow Agent in accordance with Escrow
Agreement the Securities that do not fall within the Clawback Rights or (ii)
instruct that additional Securities be delivered to the Apollo Stockholders to
fulfill the Clawback Rights. Any Clawback Notice delivered in accordance with
this Section shall be delivered by both telecopy and overnight courier or hand
delivery.

          (b)  The Apollo Investors shall be the only Persons authorized to
delivered a Clawback Notice and the Escrow Agent shall be obligated to follow
the instructions contained in any such Clawback Notice in accordance with the
terms of the Escrow Agreement.

    2.7   THE IMC STOCKHOLDER COVENANT. The IMC Stockholders, jointly and
severally, unconditionally covenant to cause to be delivered to the Apollo
Stockholders the Escrowed Property in the amount of the Differential Amount
under SECTIONS 2.4(a) AND (b) when and as due, net of any amounts required to be
delivered to the Escrow Agent pursuant to SECTION 2.4(c); PROVIDED, HOWEVER,
that in the event of a breach of this covenant, the IMC Stockholders will not be
personally liable hereunder for such breach except to the extent of their
interest in the Escrowed Property.

    2.8   CERTIFICATED SECURITIES AND PAYMENT OF PROCEEDS. The Company agrees
that all Escrowed Securities will at all times be "certificated securities" (as
defined in Article 8 of the NY UCC) and that all "proceeds" (as defined in
Article 9 of the NY UCC) of the Escrowed Securities will be paid or otherwise
delivered directly to the Escrow Agent to be held, in escrow, in accordance with
the terms of the Escrow Agreement.

SECTION 3 BRING-ALONG RIGHTS

          In the event that, at any time after the date hereof, one or more of
the Apollo Stockholders, in one transaction or a series of related transactions
that constitute a Company Sale, proposes to Transfer all or any portion of the
Common Stock then held by such Apollo Stockholder to any Third Party Purchasers
(other than Apollo Affiliates), then such Apollo Stockholder shall have the
right (a "BRING-ALONG RIGHT"), but not the obligation, to cause any of the other
Stockholders to tender for purchase to the Third Party Purchaser, a number of
shares of Common Stock equaling the amount derived by multiplying (i) the total
number of shares of Common Stock held by such Stockholder, by (ii) a fraction,
the numerator of which is the total number of shares of Common Stock to be
Transferred by such Apollo Stockholder in connection with such Company Sale and
the denominator of which is the total number of the then outstanding shares of
Common Stock held by all Apollo Stockholders. If any IMC Stockholder is required
to transfer shares of Common Stock pursuant to this SECTION 3, references to
"Common Stock" shall mean "IMC Transaction Stock" with respect to such IMC
Stockholder. If any IMC Stockholder is required to Transfer shares of IMC Common
Stock pursuant to this SECTION 3 and the

                                       13
<Page>

event giving rise to such Bring-Along Right is also a Clawback Determination
Event, the number of shares of EMC Common Stock that such IMC Stockholder shall
be required to Transfer shall be calculated after giving effect to the Clawback
Rights and any calculations set forth in SECTION 2.5. Following a Company Sale,
one or more of the Apollo Stockholders shall be entitled to exercise a
Bring-Along Right in the event such Apollo Stockholder, in one transaction or a
series of related transactions, proposes to Transfer twenty percent (20%) or
more of the Common Stock then held by such Apollo Stockholder to any Third Party
Purchasers and such Bring-Along Right shall be governed by this SECTION 3 in the
same manner as if the event triggering the right to exercise such Bring-Along
Right were a Company Sale.

          If any Apollo Stockholder elects to exercise its Bring-Along Right,
then it shall so notify the other Stockholders ("BRING-ALONG NOTICE") at least
ten (10) Business Days prior to the date on which such Apollo Stockholder
expects to consummate the Transfer giving rise to such Bring-Along Right. Each
Bring-Along Notice shall set forth: (1) the name of the Third Party Purchaser
and the number of shares of Common Stock proposed to be purchased by such Third
Party Purchaser, (ii) the proposed amount and form of consideration and terms
and conditions of payment offered by the Third Party Purchaser and a summary of
any other material terms pertaining to the Transfer ("THIRD PARTY TERMS") and
(iii) the number of shares of Common Stock that such Stockholder is required to
sell in such Transfer. The terms and conditions applicable to such purchase and
sale of any shares of Common Stock purchased from any Stockholder pursuant to
this SECTION 3 shall otherwise be the same as the terms and conditions
applicable to the Apollo Stockholder exercising the Bring-Along Right. If, prior
to the Exit Event, any IMC Stockholder is required to Transfer shares of Common
Stock pursuant to this SECTION 3, the Apollo Investors, on the same day it
delivers the applicable Bring-Along Notice, shall deliver a written notice to
the Escrow Agent attaching the Bring-Along Notice and instructing the Escrow
Agent to release such number of shares of IMC Common Stock as are required to
satisfy the obligations of the IMC Stockholders under this SECTION 3; PROVIDED
that such notice shall state, and the IMC Stockholders hereby agree, that the
Securities Proceeds from the Transfer of any such Common Stock (net of the
Bring-Along Tax Amount) shall be remitted directly to the Escrow Agent to be
held in accordance with the terms of the Escrow Agreement, unless the Clawback
Termination Date shall occur in connection with such transaction.

          Upon the giving of a Bring-Along Notice, each Stockholder shall be
obligated to Transfer the number of shares of Common Stock required to be
Transferred by such Stockholder as set forth in the Bring-Along Notice on the
Third Party Terms.

          At the closing of the Transfer to any Third Party Purchaser pursuant
to this SECTION 3, if the Exit Event has not yet occurred, each Stockholder who
is an IMC Stockholder Transferring shares of IMC Common Stock shall instruct the
Third Party Purchaser to remit directly to the Escrow Agent the Securities
Proceeds for the shares of IMC Common Stock to be Transferred by such
Stockholder (less (i) any portion of the consideration to be escrowed or
otherwise held back in accordance with the Third Party Terms; PROVIDED, HOWEVER,
that such escrow or hold back is pro rata among all Stockholders Transferring
shares of Common Stock and (ii) an amount equal to the Bring-Along Tax Amount,
if any), against delivery by such Stockholder of the certificates (if any)
representing such shares of Common Stock, duly endorsed for Transfer or with
duly executed stock powers or similar instruments, in each case, as may be
reasonably requested by the Third Party Purchaser and the Company, and the
compliance by such Stockholder or the Escrow Agent with any other conditions to
closing generally applicable to all Stockholders Transferring shares of Common
Stock in such transaction.

                                       14
<Page>

SECTION 4 TAG-ALONG RIGHTS

          In the event that, at any time after the date hereof, one or more of
the Apollo Stockholders, in one transaction or a series of related transactions
proposes to Transfer twenty percent (20%) or more of the Common Stock then held
by such Apollo Stockholder to any Third Party Purchasers (other than Apollo
Affiliates), then each other Stockholder (collectively, the "TAG-ALONG
STOCKHOLDERS") shall have the right (the "TAG-ALONG RIGHT") to Transfer the same
percentage of his, her or its Common Stock as all Apollo Stockholders are
proposing to Transfer in such a transaction by requesting that such Third Party
Purchaser purchase from such Tag-Along Stockholder up to the number of shares of
Common Stock equal to the number derived by multiplying (i) the total number of
shares of Common Stock that the proposed Third Party Purchaser(s) have agreed or
committed to purchase by (ii) a fraction, the numerator of which is the total
number of shares of Common Stock owned by such Tag-Along Stockholder, and the
denominator of which is the total number of shares of Common Stock then
outstanding. If any IMC Stockholder is entitled to transfer shares of Common
Stock pursuant to this SECTION 4, references to "Common Stock" shall mean "IMC
Transaction Stock" with respect to such IMC Stockholder. If any IMC Stockholder
is entitled to Transfer shares of IMC Common Stock pursuant to this SECTION 4
and the event giving rise to such Tag-Along Right is also a Clawback
Determination Event, the number of shares of WC Common Stock that such IMC
Stockholder shall be entitled to Transfer shall be calculated after giving
effect to the Clawback Rights and any calculations set forth in SECTION 2.5.

          In the event any Apollo Stockholder proposes to make a Transfer giving
rise to the Tag-Along Right, such Apollo Stockholder shall notify the other
Stockholders (the "SALE NOTICE") at least ten (10) Business Days prior to the
date on which such Apollo Stockholder expects to consummate such Transfer. Each
Sale Notice shall set forth the Third Party Terms applicable to the proposed
Transfer. The terms and conditions applicable to such purchase and sale of any
shares of Common Stock purchased from the Tag-Along Stockholders pursuant to
this SECTION 4 shall otherwise be the same as the terms and conditions
applicable to the Apollo Stockholder proposing to make the Transfer giving rise
to the Tag-Along Right. If, prior to the Exit Event, any IMC Stockholder is
entitled to Transfer shares of Common Stock pursuant to this SECTION 4 and such
IMC Stockholder properly delivers a Tag-Along Notice, the Apollo Investors shall
deliver, within two (2) Business Days of receiving such Tag-Along Notice, a
written notice to the Escrow Agent attaching both the Sale Notice and such
Tag-Along Notice and instructing the Escrow Agent to release such number of
shares of IMC Common Stock as are entitled to be Transferred by such IMC
Stockholder under this SECTION 4; PROVIDED that such notice shall state, and the
IMC Stockholders hereby agree, that the Securities Proceeds from the Transfer of
any such Common Stock shall be remitted directly to the Escrow Agent to be held
in accordance with the terms of the Escrow Agreement.

          The Tag-Along Right may be exercised by any Tag-Along Stockholder by
delivery of a written notice to such Apollo Stockholder proposing to Transfer
shares of Common Stock (the "TAG-ALONG NOTICE") within five (5) Business Days
following receipt of a Sale Notice from such Apollo Stockholder. The Tag-Along
Notice shall state the number of shares of Common Stock (not to exceed the
amount determined in accordance with the first paragraph of this SECTION 4) that
such Tag-Along Stockholder proposes to include in such Transfer to the Third
Party Purchaser. In the event that the Third Party Purchaser does not purchase
the specified number of shares of Common Stock from the Tag-Along Stockholders
on the same terms and conditions as specified in the Sale Notice, then such
Apollo Stockholder shall not be entitled under this SECTION 4 to Transfer any
shares of Common Stock to the proposed Third Party Purchaser in the proposed
Transfer.

                                       15
<Page>

          At the closing of the Transfer to any Third Party Purchaser pursuant
to this SECTION 4, if the Exit Event has not yet occurred, (i) each Tag-Along
Stockholder who is an IMC Stockholder shall instruct the Third Party Purchaser
to remit directly to the Escrow Agent the Securities Proceeds for the shares of
IMC Common Stock to be Transferred by such Tag-Along Stockholder (less any
portion of the consideration to be escrowed or otherwise held back in accordance
with the Third Party Terms; PROVIDED, HOWEVER, that such escrow or hold back is
pro rata among all Stockholders Transferring shares of Common Stock), against
delivery by such Tag Along Stockholder of the certificates (if any) representing
such shares of Common Stock, duly endorsed for Transfer or with duly executed
stock powers or similar instruments, in each case, as may be reasonably
requested by the Third Party Purchaser and the Company, and the compliance by
such Tag-Along Stockholder or the Escrow Agent with any other conditions to
closing generally applicable to all Stockholders Transferring shares of Common
Stock in such transaction, and (ii) all such Securities Proceeds shall remain
subject to the Clawback Rights.

SECTION 5 VOTING OF IMC COMMON STOCK

          (a)  With respect to any matters to which holders of Common Stock are
entitled to vote or consent ("VOTE"), the Escrow Agent shall follow the written
instructions of the Vote Directing Party with respect to all of the shares of
IMC Common Stock. The Apollo Stockholders shall be the Vote Directing Party
during the Majority Period. Following the Majority Period and until the Clawback
Termination Date, the IMC Stockholders shall be the Vote Directing Party.

          (b)  For purposes hereof, (i) the "VOTE DIRECTING PARTY" shall mean
the parry who is entitled, in accordance with SECTION 5(a), to direct the Vote
with respect to all of the shares of IMC Common Stock at any given time and (ii)
the "MAJORITY PERIOD" shall mean the period during which the Apollo Stockholders
own a majority of the shares of Common Stock then outstanding and shall
terminate on such date that the Apollo Stockholders no longer own a majority of
the shares of Common Stock then outstanding. The Apollo Stockholders shall give
the Escrow Agent written notice promptly following the termination of the
Majority Period indicating that the IMC Stockholders have become the Vote
Directing Party and the Escrow Agent shall not have any liability for acting as
if the Apollo Stockholders are the Voting Directing Party until the Escrow Agent
receives such notice.

          (c)  For the avoidance of doubt, (i) shares of IMC Registered Stock
shall not be subject to the provisions of this SECTION 5 and IMC shall have the
right to Vote and exercise all Voting and related rights with respect to all
such shares and (ii) any shares of Common Stock that are released in accordance
with Section 2 of the Escrow Agreement shall no longer be considered shares of
IMC Common Stock; PROVIDED that any shares of Common Stock that are redeposited
with the Escrow Agent in accordance with Section 2(b) or Section 2(c) of the
Escrow Agreement shall once again be considered shares of IMC Common Stock until
such shares are once again released in accordance with Section 2 of the Escrow
Agreement.

SECTION 6 REGISTRATION RIGHTS

    6.1   DEMAND REGISTRATION. At any time and from time to time after the IPO
Date, if the Company shall receive a written request from one or more Apollo
Investors (a "REQUESTING STOCKHOLDER"), that the Company file a registration
statement under the Securities Act (including a "shelf" registration statement
on Form S-3 or any successor form pursuant to Rule 415) covering the
registration of Registrable Common Stock pursuant to this SECTION 6.1 (a "DEMAND
NOTICE"), then the Company shall, within ten (10) business days of the receipt
of such written request, give written notice of such request

                                       16
<Page>

("REQUEST NOTICE") to all Stockholders and, in addition to any obligations under
SECTION 8, use its best efforts to effect, as soon as practicable, the
registration under the Securities Act of all Registrable Common Stock that the
Requesting Stockholder requests to be registered in the Demand Notice together
with the Registrable Common Stock of other Registering Stockholders pursuant to
SECTION 7, subject only to the limitations of this SECTION 6 and the rights of
other Stockholders pursuant to SECTION 7: PROVIDED that the Company shall not be
obligated to effect any such registration until 180 days after the IPO Date;
PROVIDED, FURTHER, that the IMC Stockholders may not register any shares of IMC
Common Stock until after the Exit Event unless such shares are being registered
such that the Securities Proceeds derived therefrom will be used to satisfy, in
whole or in part, a Clawback Right.

    6.2   UNDERWRITING. If the Requesting Stockholder intends to distribute the
Registrable Common Stock covered by its request by means of an underwritten
offering, then it shall so advise the Company as a part of the Demand Notice,
and the Company shall include such information in the Request Notice. In such
event, the right of any Stockholder to include his Registrable Common Stock in
such registration shall be conditioned upon such Stockholder's participation in
such underwriting and the inclusion of such Stockholder's Registrable Common
Stock in the underwriting (unless otherwise mutually agreed by the Requesting
Stockholder and such Stockholder) as provided herein. The Company and all
Stockholders proposing to distribute their securities through such underwriting
shall enter into an underwriting agreement in customary form with the managing
underwriter or underwriters selected for such underwriting by the Requesting
Stockholder. Notwithstanding any other provision of this SECTION 6.2 or
SECTION 7, if the managing underwriter(s) determine(s) in good faith that
marketing factors require a limitation of the number of securities to be
underwritten, then the Company shall so advise all Stockholders that would
otherwise be registered and underwritten pursuant hereto, and the managing
underwriter(s) may exclude shares of the Registrable Common Stock from the
registration and the underwriting, and the number of shares that will be
included in the registration and the underwriting shall be allocated, first to
the Requesting Stockholder's Common Stock and to each of the Stockholders
requesting inclusion of their Registrable Common Stock in such registration
statement pursuant to SECTION 7 on a pro rata basis based on the total number of
Registrable Common Stock requested for inclusion in the registration by the
Requesting Stockholder and each such Stockholder, and second to the Company. No
other shares may be included (other than by the Company or by the Stockholders
pursuant to SECTION 7 without the Requesting Stockholder's consent.

    6.3   DEFERRAL. Notwithstanding the foregoing, if the Company shall furnish
to the Requesting Stockholder a certificate signed by the President or Chief
Executive Officer of the Company stating that, in the good faith judgment of the
Board, it would be materially detrimental to the Company and its stockholders
for such registration statement then to be filed, the Company shall have the
right to defer such filings and, by notice to the Requesting Stockholder, to
require the Requesting Stockholder to withdraw its Demand Notice and to refrain
from delivering another Demand Notice for a period of not more than ninety (90)
days after receipt of the request of the initial Demand Notice; PROVIDED,
HOWEVER, that the Company may not utilize this right more than twice in any
twelve (12) month period.

    6.4   SURVIVAL This SECTION 6 shall remain in full force and effect
following any Exit Event.

    6.6   IMC TRANSACTION STOCK. For purposes of this SECTION 6 and SECTIONS 7
AND 8, if the referred to Stockholder is an IMC Stockholder, references to
"'Common Stock" shall mean "IMC Transaction Stock" with respect to such IMC
Stockholder.

                                       17
<Page>

SECTION 7 PIGGYBACK REGISTRATION RIGHTS

    7.1   If the Company at any time proposes to register under the Securities
Act any Common Stock or any security convertible into or exchangeable or
exercisable for Common Stock, whether or not for sale for its own account, on a
form and in a manner which would permit registration of the Common Stock held by
a Stockholder for sale to the public under the Securities Act (other than
pursuant to Form S-4 or Form S-8 or successor or similar forms), the Company
shall give written notice of the proposed registration to each Stockholder not
later than thirty (30) days prior to the filing thereof. Each Stockholder shall
have the right to request that all or any part of his or its Registrable Common
Stock be included in such registration. Any such registration that the Company
proposes for its own account shall be referred to as a "PRIMARY REGISTRATION"
and any such registration that the Company proposes that is not for its own
account shall be referred to as a "SECONDARY REGISTRATION." Each Stockholder can
make such a request by giving written notice to the Company within ten (10)
Business Days after the giving of such notice by the Company (any Stockholder
giving the Company a notice requesting that the Registrable Common Stock owned
by it be included in such proposed registration being hereinafter referred to in
this SECTION 7 as a "REGISTERING STOCKHOLDER"); PROVIDED, HOWEVER, that if the
Company or the managing underwriters of such offering determine that the
aggregate amount of securities of the Company which the Company, all Registering
Stockholders and all other Stockholders of the Company entitled to register
securities in connection with any offering ("OTHER REGISTERING HOLDERS") propose
to include in such registration statement exceeds the maximum amount of
securities that may be sold without having a material adverse effect on the
success of the offering, including without limitation the selling price and
other terms of such offering, the Company will include in such registration,
first, the securities which the Company proposes to sell in a Primary
Registration, second, the Registrable Common Stock of such Registering
Stockholders who are Apollo Stockholders, and third, the Registrable Common
Stock to be sold for the account of Other Registering Holders (including the IMC
Stockholders) and shares to be registered for the account of the Company in a
Secondary Registration, pro rata among all such Registering Stockholders and
such Other Registering Holders, taken together, on the basis of the relative
percentage of Registrable Common Stock owned by all such Registering
Stockholders and such Other Registering Holders who have requested that
securities owned by them be so included. Registrable Common Stock proposed to be
registered and sold pursuant to an underwritten offering for the account of any
Registering Stockholder shall be sold to the prospective underwriters selected
or approved by the Company and on the terms and subject to the conditions of one
or more underwriting agreements negotiated between the Company and the
prospective underwriters. Any Registering Stockholder who holds Registrable
Common Stock being registered in any offering shall have the right to receive a
copy of the form of underwriting agreement and shall have an opportunity to hold
discussions with the lead underwriter of the terms of such underwriting
agreement. The Company may withdraw any registration statement at any time
before it becomes effective, or postpone or terminate the offering of
securities, without obligation or liability to any Registering Stockholder. If,
prior to the Exit Event, the IMC Stockholders are entitled to register
Registrable Common Stock pursuant to this SECTION 7, with respect to any IMC
Stockholder who properly requests that all or any part of its Registrable Common
Stock be included in such registration, the Apollo Investors shall deliver,
promptly (and in any event within such time as is necessary to permit shares of
IMC Common Stock to be disposed of to the underwriters in connection with such
offering), a written notice to the Escrow Agent instructing the Escrow Agent to
release such number of shares of IMC Common Stock as are entitled to be
registered and sold under this SECTION 7 upon effectiveness of the applicable
Registration Statement; provided that such notice shall state, and the IMC
Stockholders hereby agree, that the Securities Proceeds from the sale of any
such IMC

                                       18
<Page>

Common Stock shall be remitted directly to the Escrow Agent to be held in
accordance with the terms of the Escrow Agreement.

SECTION 8 REGISTRATION PROCEDURES

    8.1   HOLDBACK AGREEMENTS. Notwithstanding any other provision of SECTION 6
or SECTION 7, each Stockholder agrees that (if so required by the underwriters
in an underwritten offering) he, she or it will not (and it shall be a condition
to the rights of each Stockholder under of SECTION 6 and SECTION 7 that such
Stockholder does not) offer for public sale any Common Stock during a period not
to exceed sixty (60) days prior to and one-hundred and eighty (180) days after
the effective date of any registration statement filed by the Company in
connection with an underwritten public offering (except as part of such
underwritten registration or as otherwise permitted by such underwriters). The
IMC Stockholders shall not be required to agree to any such holdback period that
is longer than the shortest period applicable to any Apollo Investor so long as
the Apollo Investors beneficially own at least as much as or more than the
outstanding Common Stock beneficially owned by the IMC Stockholders.

    8.2   EXPENSES. Except as otherwise required by state securities or blue sky
laws or the rules and regulations promulgated thereunder, all expenses,
disbursements and fees incurred by the Company and the Stockholders in
connection with any registration under SECTION 6 or under SECTION 7 shall be
borne by the Company, except that the following expenses shall be borne by the
Stockholder incurring the same: (1) the costs and expenses of counsel to such
Stockholder to the extent such Stockholder retains counsel; (ii) discounts,
commissions, fees or similar compensation owing to underwriters, selling
brokers, dealer managers or other industry professionals, to the extent relating
to the distribution or sale of such Stockholder's securities; (iii) transfer
taxes with respect to the securities sold by such Stockholder; and (iv) other
expenses incurred by such Stockholder and incidental to the sale and delivery of
the securities to be sold by such Stockholder.

    8.3   REGISTRATION PROCEDURES. In connection with any registration of
Registrable Common Stock under the Securities Act pursuant to this Agreement,
the Company will consult with each Registering Stockholder whose Common Stock is
to be included in any such registration concerning the form of underwriting
agreement, shall provide to such Registering Stockholder the form of
underwriting agreement prior to the Company's execution thereof and shall
provide to such Registering Stockholder and its representatives such other
documents (including comments by the Securities and Exchange Commission (the
"COMMISSION") on the registration statement) as such Registering Stockholder
shall reasonably request in connection with its participation in such
registration. The Company will furnish each Registering Stockholder whose shares
of Registrable Common Stock are registered thereunder and each underwriter, if
any, with a copy of the registration statement and all amendments thereto and
will supply each such Registering Stockholder and each underwriter, if any, with
copies of any prospectus included therein (including a preliminary prospectus
and all amendments and supplements thereto), in such quantities as may be
reasonably necessary for the purposes of the proposed sale or distribution
covered by such registration. In the event that the Company prepares and files
with the Commission a registration statement on any appropriate form under the
Securities Act (a "REGISTRATION STATEMENT") providing for the sale of
Registrable Common Stock held by any Registering Stockholder pursuant to its
obligations under SECTION 6 or SECTION 7, the Company will:

          (a)  upon filing a Registration Statement or any prospectus related
    thereto (a "PROSPECTUS") or any amendments or supplements thereto, furnish
    to the Registering Stockholders

                                       19
<Page>

    whose Registrable Common Stock are covered by such Registration Statement
    and the underwriters, if any, copies of all such documents;

          (b)  prepare and file with the Commission such amendments and
    post-effective amendments to the Registration Statement as may be necessary
    to keep such Registration Statement effective for the ninety (90) day period
    referenced in paragraph (a) above; cause the related Prospectus to be
    supplemented by any required Prospectus supplement, and as so supplemented
    to be filed pursuant to Rule 424 under the Securities Act; and comply with
    the provisions of the Securities Act with respect to the disposition of all
    securities covered by such Registration Statement during the applicable
    period in accordance with the intended methods of disposition by the sellers
    thereof set forth in such Registration Statement or supplement to such
    Prospectus;

          (c)  promptly notify the Registering Stockholders and the managing
    underwriters, if any, and (if requested by any such Person) confirm such
    advice 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, (ii) of any request by the Commission or any state securities
    commission for amendments or supplements to a Registration Statement or
    related Prospectus or for additional information, (iii) of the issuance by
    the Commission or any state securities commission of any stop order
    suspending the effectiveness of a Registration Statement or the initiation
    of any proceedings for that purpose, (iv) of the receipt by the Company of
    any notification with respect to the suspension of the qualification of any
    of the Registrable Common Stock for sale in any jurisdiction or the
    initiation or threatening of any proceeding for such purpose, and (v) of the
    existence of any fact which results in a Registration Statement, a
    Prospectus or any document incorporated therein by reference containing an
    untrue statement of a material fact or omitting to state a material fact
    required to be stated therein or necessary to make the statements therein
    not misleading;

          (d)  use its reasonable best efforts to obtain the withdrawal of any
    order suspending the effectiveness of a Registration Statement;

          (e)  if requested by the managing underwriters or a Registering
    Stockholder, promptly incorporate in a Prospectus supplement or
    post-effective amendment such information as the managing underwriters or
    the Registering Stockholders holding a majority of the Registrable Common
    Stock being sold by Registering Stockholders agree should be included
    therein relating to the sale of such Registrable Common Stock, 22 including
    without limitation information with respect to the amount of Registrable
    Common Stock being sold to such underwriters, the purchase price being paid
    therefor by such underwriters and with respect to any other terms of the
    underwritten (or best efforts underwritten) offering of the Registrable
    Common Stock to be sold in such offering; and make all required filings of
    such Prospectus supplement or post-effective amendment as soon as notified
    of the matters to be incorporated in such Prospectus supplement or post
    effective amendment;

          (f)  furnish to such Registering Stockholder and each managing
    underwriter at least one signed copy of the Registration Statement and any
    post-effective amendment thereto, including financial statements and
    schedules, all documents incorporated therein by reference and all exhibits
    (including those incorporated by reference);

                                       20
<Page>

          (g)  deliver to such Registering Stockholders and the underwriters, if
    any, as many copies of the Prospectus (including each preliminary
    prospectus) and any amendment or supplement thereto as such persons or
    entities may reasonably request;

          (h)  prior to any public offering of Registrable Common Stock,
    register or qualify or cooperate with the Registering Stockholders, the
    underwriters, if any, and their respective counsel in connection with the
    registration or qualification of such Registrable Common Stock for offer and
    sale under the securities or blue sky laws of such jurisdictions within the
    United States as any Registering Stockholder or underwriter reasonably
    requests in writing and do any and all other acts or things necessary or
    advisable to enable the disposition in such jurisdictions of the Registrable
    Common Stock covered by the applicable Registration Statement; provided,
    however, that the Company will not be required to qualify generally to do
    business in any jurisdiction where it is not then so qualified or to take
    any action which would subject it to general service of process or taxation
    in any such jurisdiction where it is not then so subject;

          (i)  cooperate with the Registering Stockholders and the managing
    underwriters, if any, to facilitate the timely preparation and delivery of
    certificates representing Registrable Common Stock to be sold pursuant to
    such Registration Statement and not bearing any restrictive legends, and
    enable such Registrable Common Stock to be in such denominations and
    registered in such names as the managing underwriters may request at least
    two Business Days prior to any sale of Registrable Common Stock to the
    underwriters;

          (j)  if any fact described in paragraph (c)(v) above exists, prepare a
    supplement or post-effective amendment to the applicable Registration
    Statement or the related Prospectus or any document incorporated therein by
    reference or file any other required document so that, as thereafter
    delivered to the purchasers of the Registrable Common Stock being sold
    thereunder, such Prospectus will not contain an untrue statement of a
    material fact or omit to state any material fact necessary to make the
    statements therein not misleading;

          (k)  cause all Registrable Common Stock covered by the Registration
    Statement to be listed on each securities exchange on which similar
    securities issued by the Company are then listed;

          (l)  provide a CUSIP number for all Registrable Common Stock included
    in such Registration Statement, not later than the effective date of the
    applicable Registration Statement;

          (m)  make available for inspection by a representative of the
    Registering Stockholders the Registrable Common Stock being sold pursuant to
    such Registration Statement, any underwriter participating in any
    disposition pursuant to a Registration Statement, and any attorney or
    accountant retained by such Registering Stockholders or underwriter, all
    financial and other records, any pertinent corporate documents and
    properties of the Company reasonably requested by such representative,
    underwriter, attorney or accountant in connection with such Registration
    Statement; PROVIDED, HOWEVER, that any records, information or documents
    that are designated by the Company in writing as confidential shall be kept
    confidential by such persons or entities unless disclosure of such records,
    information or documents is required by court or administrative order;

                                       21
<Page>

          (n)  otherwise use his, her or its reasonable best efforts to comply
    with all applicable rules and regulations of the Commission and relevant
    state securities commissions, and make generally available to the
    Registering Stockholders earning statements satisfying the provisions of
    SECTION 10(a) of the Securities Act no later than forty-five (45) days after
    the end of any 12-month period (or ninety (90) days, if such period is a
    fiscal year) commencing at the end of any fiscal quarter in which
    Registrable Common Stock of such Registering Stockholder is sold to
    underwriters in an underwritten offering, or, if not sold to underwriters in
    such an offering, beginning with the first month of the Company's first
    fiscal quarter commencing after the effective date of a Registration
    Statement, which statements shall cover said 12-month periods;

          (o)  furnish to each underwriter, if an underwritten offering,
    customary "comfort" letters from its independent auditors, legal opinions
    from counsel to the Company on customary matters, and such other
    certificates, instruments or other matters reasonably requested by the
    underwriters;

          (p)  cause the Company's executive officers, including its chief
    executive officer and chief financial officer, to be available to meet with
    potential investors and to participate in any "roadshow" requested by the
    underwriters and which in the underwriters' judgment is reasonably necessary
    or appropriate for the sale of the Registrable Common Stock; and

          (q)  enter into such agreements (including an underwriting agreement
    in form reasonably satisfactory to the Company) aid take all such other
    reasonable actions in connection with the sale of Registrable Common Stock

    8.4   CONDITIONS TO STOCKHOLDER RIGHTS; INDEMNIFICATION BY STOCKHOLDER. It
shall be a condition of each Registering Stockholder's rights hereunder to have
Registrable Common Stock owned by it registered that:

          (a)  such Registering Stockholder shall cooperate with the Company in
all reasonable respects by supplying information and executing documents
relating to such Registering Stockholder or the securities of the Company owned
by such Registering Stockholder in connection with such registration;

          (b)  such Registering Stockholder shall enter into such undertakings
and take such other action relating to the conduct of the proposed offering
which the Company or the underwriters may reasonably request as being necessary
to ensure compliance with federal and state securities laws and the rules or
other requirements of the NASD or otherwise to effectuate the offering; and

          (c)  such Registering Stockholder shall execute and deliver an
agreement to indemnify and hold harmless the Company and each underwriter (as
defined in the Securities Act), and each person or entity, if any, who controls
such underwriter within the meaning of the Securities Act, against such losses,
claims, damages or liabilities (including reimbursement for legal and other
expenses) to which such underwriter or controlling person or entity may become
subject under the Securities Act or otherwise, in such manner as is customary
for registrations of the type then proposed and, in any event, at least
equivalent in scope to indemnities given by the Company in connection with such
registration, but only with respect to information furnished by such Registering
Stockholder specifically for use in the Registration Statement or Prospectus in
connection with such registration and with respect to such Registering
Stockholder's failure to deliver Prospectuses as required under the Securities
Act; but such

                                       22
<Page>

indemnification shall not extend to any amounts beyond the proceeds of the sale
of the Securities received by such indemnitor.

    8.5   INDEMNIFICATION BY COMPANY. In the event of any registration under the
Securities Act of any Registrable Common Stock of Registering Stockholders
pursuant to this SECTION 8.5, the Company shall execute and deliver an agreement
to indemnify and hold harmless each Registering Stockholder and any underwriter
disposing of such Registrable Common Stock and any underwriter in connection
with such disposition against such losses, claims, damages or liabilities
(including reimbursement for legal and other expenses) to which such Registering
Stockholder may become subject under the Securities Act or otherwise, in such
manner as is customary in underwriting agreements for registrations of the type
then proposed.

SECTION 9 ADDITIONAL COMPANY EQUITY ISSUANCES TO APOLLO STOCKHOLDERS

          Prior to a Qualified IPO, the Company shall not issue any Securities
to any Apollo Stockholder unless the Company shall offer to each of the IMC
Stockholders an opportunity to acquire the Securities, in an amount up to the
Pre-Emptive Percentage of the total amount of such Securities to be issued, on
the same terms and conditions as the Apollo Stockholders, PROVIDED that such
opportunity must be offered to the IMC Stockholders no later than 30 days after
the acquisition of any such Securities by any Apollo Stockholder and any IMC
Stockholder must determine whether to participate within ten days of such offer
(which determination may be conditioned upon the participation of any of the
Apollo Stockholders); PROVIDED HOWEVER, during the period beginning on the date
that the Apollo Stockholders acquire such Securities and ending on the earliest
of the dates on which (A) the IMC Stockholders' right to participate lapses, (B)
the IMC Stockholders purchase Securities following an election to participate,
or (C) the IMC Stockholders notify the Company that they will not participate,
the Company shall not (x) set a record date for payment of dividends, (y) seek
stockholder approval for any matter (unless, taking into account the total
amount of Securities that the IMC Stockholders are entitled to purchase if the
IMC Stockholders elect to participate, the vote of the IMC Stockholders would
not alter the outcome of the sought after approval and the act of voting or
refraining from voting would not give rise to specific rights, including
dissenters rights) or (z) enter into or effect, or agree to enter into or
effect, a merger, consolidation, sale recapitalization, or similar transaction,
unless, in any case contemplated by clauses (x), (y) and (z), the IMC
Stockholders receive the same benefits and rights and are subject to the same
obligations as if the IMC Stockholders had purchased the Securities on the same
date as the Apollo Stockholders. Any Securities so acquired by the IMC
Stockholders shall not be subject to the Clawback Rights under SECTION 2.4 AND
2.5.

SECTION 10 TRANSACTIONS WITH AFFILIATES AND OTHERS

          (a)  Prior to a Qualified 1P0, so long as the IMC Stockholders remain
Stockholders of the Company, without the prior written consent of IMC Global,
the Company shall not enter into any transaction with an Apollo Stockholder
unless such transaction is on arms' length terms; PROVIDED, HOWEVER, that the
following shall be deemed to be on arms' length terms: (A) any transaction
authorized, based in part on a determination that such transaction is fair as to
the Company as of the time of authorization, by a majority of the members of the
Board of Directors who do not have a financial interest in such transaction
within the meaning of the General Corporation Law of the State of Delaware, (B)
any amendment or modification to the terms of the Preferred Stock or the Note
Securities that treats all outstanding shares of Preferred Stock or all
outstanding Note Securities similarly, (C) any agreements to be entered into by
the Company regarding tax reporting on IRS Form 1099-DIV (or any successor form)

                                       23
<Page>

with respect to the Series A Preferred Stock, (D) the Management Consulting
Agreement and the transactions and payments thereunder, and (E) any reasonable
and customary fees, stock options, reasonable out-of-pocket expense
reimbursements, coverage under directors and officers insurance and
indemnification protection for officers and directors received by or covering
any Apollo Stockholder.

          (b)  Prior to a Qualified IPO, so long as the IMC Stockholders remain
Stockholders of the Company, without the prior written consent of WC Global, the
Company shall not repurchase any shares of Apollo Preferred Stock from any
Apollo Affiliate without offering to repurchase a pro rata amount of IMC
Preferred Stock from the WC Stockholders.

          (c)  The Apollo Stockholders shall not enter into any refinancing
agreement, amendment, modification or waiver ("AMENDMENT") in connection with
the Senior Credit Documents (as such term is defined in the IMC Notes) or the
Senior Subordinated Debt Documents (as such term is defined in the IMC Notes)
with respect to (i) any redemption, repurchase or payment of dividends or any
portion of the liquidation preference on the Preferred Stock, which Amendment
treats the Preferred Stock held by the Apollo Stockholders in a manner
disproportionate to the manner in which such Amendment treats the Preferred
Stock held by the IMC Stockholders with respect to any such redemption,
repurchase or payment; (ii) any redemption, repurchase or payment of interest or
principal on the Note Securities, which Amendment treats the Note Securities
held by the Apollo Stockholders in a manner disproportionate to the manner in
which such Amendment treats the Notes Securities held by the IMC Stockholders
with respect to any such redemption, repurchase or payment; or (iii) any
redemption, repurchase or payment of interest or principal on the Note
Securities, which Amendment treats the Note Securities held by the Apollo
Stockholders in a manner disproportionate to the manner in which such Amendment
treats the IMC Notes held by the IMC Stockholders, as maybe applicable.

SECTION 11 MISCELLANEOUS

    11.1  TERMINATION. Notwithstanding any other provision contained herein, the
rights and obligations of all Parties under SECTIONS 3 AND 4 shall terminate
upon the date on which a Qualified IPO is consummated.

    11.2  LEGENDS. Each certificate representing shares of Common Stock held by
the Stockholders shall bear the following legend:

    "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
    UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR THE SECURITIES
    LAWS OF ANY STATE AND MAY NOT BE SOLD OR TRANSFERRED IN THE ABSENCE OF AN
    EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT AND SUCH LAWS OR AN EXEMPTION
    FROM THE REGISTRATION REQUIREMENTS THEREOF."

    "THE SECURITIES REPRESENTED HEREBY ARE SUBJECT TO ADDITIONAL RESTRICTIONS ON
    TRANSFER AND CERTAIN OTHER AGREEMENTS SET FORTH IN A STOCK RIGHTS AGREEMENT
    BETWEEN THE ISSUER AND THE INITIAL HOLDER HEREOF DATED AS OF NOVEMBER 28,
    2001. A COPY OF SUCH AGREEMENT SHALL BE FURNISHED WITHOUT CHARGE BY THE
    ISSUER TO THE HOLDER HEREOF UPON WRITTEN REQUEST."

                                       24
<Page>

    11.3  SUCCESSORS, ASSIGNS AND TRANSFEREES. This Agreement shall be binding
upon and inure to the benefit of the Parties hereto and their respective legal
representatives, heirs, legatees, successors, and assigns and any other
transferee of the Common Stock, Preferred Stock or IMC Notes and shall also
apply to any Common Stock, Preferred Stock or IMC Notes acquired by Stockholders
after the date hereof.

    11.4  SPECIFIC PERFORMANCE. Each Party, in addition to being entitled to
exercise all rights provided herein or granted by law, including recovery of
damages, shall be entitled to specific performance of each other Party's
obligations under this Agreement. The Parties agree that monetary damages would
not be adequate compensation for any loss incurred by reason of a breach by any
of them of the provisions of this Agreement and each hereby agrees to waive the
defense in any action for specific performance that a remedy at law would be
adequate.

    11.5  GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the internal laws, and not the law of conflicts, of the State of
New York.

    11.6  SUBMISSION TO JURISDICTION; WAIVER OF JURY TRIAL. EACH PARTY HERETO
HEREBY SUBMITS TO THE NONEXCLUSIVE JURISDICTION OF THE UNITED STATES DISTRICT
COURT FOR THE SOUTHERN DISTRICT OF NEW YORK AND OF ANY NEW YORK STATE COURT
SITTING IN NEW YORK CITY FOR PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR
RELATING TO THIS STOCK RIGHTS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.
EACH PARTY HERETO IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW,
ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF THE VENUE OF
ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM THAT ANY SUCH
PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.
EACH PARTY HERETO IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY
LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS STOCK RIGHTS AGREEMENT OR
THE TRANSACTIONS CONTEMPLATED HEREBY.

    11.7  INTERPRETATION. The headings of the Sections contained in this
Agreement are solely for the purpose of reference, are not part of the agreement
of the Parties and shall not affect the meaning or interpretation of this
Agreement.

    11.8  REPRESENTATION. Apollo Management shall represent each of the Apollo
Stockholders for the purposes of this Agreement, including with respect to any
waivers, consent or notices and it has the requisite authority to represent each
of the entities comprising the Apollo Stockholders. Any notice, including any
Clawback Notice, given by Apollo Management shall be deemed to also have been
given by the Apollo Investors or the Apollo Stockholders, as the case may be,
and shall be binding on all of the Apollo Investors and Apollo Stockholders. IMC
Global shall represent each of the IMC Stockholders for the purposes of this
Agreement, including with respect to any waivers, consent or notices and it has
the requisite authority to represent each of the entities comprising the IMC
Stockholders.

    11.9  NOTICES. All notices and other communications provided for or
permitted hereunder shall be in writing and shall be deemed to have been duly
given and received when delivered by overnight courier or hand delivery, when
sent by telecopy, or five days after mailing if sent by registered or certified
mail (return receipt requested) postage prepaid, to the Parties at the following
addresses (or at such other

                                       25
<Page>

address for any Party as shall be specified by like notices, PROVIDED that
notices of a change of address shall be effective only upon receipt thereof).

          If to the Company, at:

                    Salt Holdings Corporation
                    8300 College Park Boulevard
                    Overland Park, Kansas 66210
                    Attention: Chief Executive Officer

                    With a copy to Apollo, at the address given below, and a
                    copy to:

                    Latham & Watkins
                    885 Third Avenue
                    New York, N.Y. 10022
                    Attention: Raymond Y. Lin
                    Facsimile: (212) 751-4864

          If to Apollo, at:

                    Apollo Management, L.P.
                    1301 Avenue of the Americas
                    New York, NY 10019
                    Attention: Scott Kleinman
                    Facsimile: (212) 515-3232

                    With a copy to Latham & Watkins, at the address given above.

          If to IMC Global Inc., to:

                    IMC Global Inc.
                    100 South Saunders Road, Suite 300
                    Lake Forest, IL 60045
                    Attention: General Counsel
                    Facsimile: (847) 739-1606

                    with a copy to:

                    Skadden Arps Slate Meagher & Flom LLP
                    4 Times Square
                    New York, N.Y. 10036
                    Attention: Stephen Arcano
                    Facsimile: (212) 735-2000

          If to any other Stockholder, to the address set forth on the signature
pages hereto.

    11.10 RECAPITALIZATION, EXCHANGE, ETC. Affecting the Company's Equity
Securities. The provisions of this Agreement shall apply, to the full extent set
forth herein, with respect to any and all

                                       26
<Page>

Securities or any successor or assign of the Company (whether by merger,
consolidation, sale of assets, conversion to a corporation or otherwise) that
may be issued in respect of, in exchange for, or in substitution of, the
Securities and shall be appropriately adjusted for any dividends, splits,
reverse splits, combinations, recapitalizations, and the like occurring after
the date hereof.

    11.11 COUNTERPARTS. This Agreement maybe executed in two or more
counterparts, each of which shall be deemed to be an original and all of which
together shall be deemed to constitute one and the same agreement.

    11.12 SEVERABILITY. In the event that anyone or more of the provisions
contained herein, or the application thereof in any circumstances, is held
invalid, illegal, or unenforceable in any respect for any reason, the validity,
legality and enforceability of any such provision in every other respect and of
the remaining provisions contained herein shall not be in any way impaired
thereby.

    11.13 AMENDMENT. This Agreement maybe amended only by written agreement
signed by each of the parties hereto. Notwithstanding the foregoing, at any time
hereafter, any Persons acquiring shares of Common Stock in accordance with the
terms hereof may be made parties hereto by executing a signature page in the
form attached as EXHIBIT A hereto, which signature page shall be countersigned
by the Company and shall be attached to this Agreement and become a part hereof
without any further action of any other Party hereto.

                                       27
<Page>

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

                                  SALT HOLDINGS CORPORATION

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

                                  APOLLO MANAGEMENT V L.P.

                                  YBR HOLDINGS LLC

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

                                  IMC GLOBAL INC.

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

<Page>

                                   SCHEDULE A

<Table>
<Caption>
                          Number of Shares           Number of Shares
 Name of Stockholder       of Common Stock          of Preferred Stock
--------------------   -----------------------   ------------------------
<S>                    <C>                       <C>
YBR Holdings LLC       5,600,000 - Management    59,000 - Management
                       Rollover Common Share     Rollover Preferred Share
                       Number (as such term is   Number (as such term is
                       defined in the Merger     defined in the Merger
                       Agreement)                Agreement)
</Table>

<Page>

                                    EXHIBIT A

                                 SIGNATURE PAGE
                                     TO THE
                             STOCK RIGHTS AGREEMENT

          By execution of this signature page, _______________________________
hereby agrees to become a party to, be bound by the obligations of and receive
the benefits of that certain Stock Rights Agreement dated as of [___________],
2001 by and among Salt Holdings Corporation, a Delaware corporation, Apollo
Management V L.P., a Delaware limited partnership, each of the stockholders of
the Company listed on Schedule A attached thereto, IMC Global Inc., a Delaware
corporation, and certain other parties named therein, as amended from time to
time thereafter.

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

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

                                  Notice Address:

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

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

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

Accepted:

SALT HOLDINGS CORPORATION

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

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00051-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00051-of-00352.parquet"}]]