Exhibit 10.1
Execution Version

VOTING AND SUPPORT AGREEMENT
This VOTING AND SUPPORT AGREEMENT (this “Agreement”), dated as of August 9,
2015, is entered into by and between CVR Partners, LP, a Delaware limited
partnership (“Parent”), Rentech, Inc., a Colorado corporation (“Partnership
Parent”), Rentech Nitrogen Holdings, Inc., a Delaware corporation (the
“Partnership Unitholder I”), and DSHC, LLC, a Delaware limited liability company
(the “Partnership Unitholder II” and, together with the Partnership Parent and
the Partnership Unitholder I, the “Unitholders”). The parties to this Agreement
are sometimes referred to herein collectively as the “parties,” and individually
as a “party.”
WHEREAS, the Partnership Unitholder I owns 13,815,682 common units representing
limited partner interests and Partnership Unitholder II owns 9,434,318 common
units representing limited partner interests (collectively, the “Unitholder
Common Units”) of Rentech Nitrogen Partners, L.P., a Delaware limited
partnership (the “Partnership”) (such Unitholder Common Units, together with (a)
any other partner interests in the Partnership or (b) rights to acquire such
partner interests, in each case acquired (whether beneficially or of record) by
the Unitholders after the date hereof and prior to the Expiration Date,
including any partner interests in the Partnership or rights to acquire such
partner interests acquired by means of purchase, dividend or distribution, or
issued upon the exercise of any options or warrants or the conversion of any
convertible securities or otherwise, being collectively referred to herein as
the “Securities”);
WHEREAS, Parent, Lux Merger Sub 1 LLC, a limited liability company and wholly
owned subsidiary of Parent (“Merger Sub 1”), Lux Merger Sub 2, a limited
liability company and wholly owned subsidiary of Parent (“Merger Sub 2,” and
together with Merger Sub 1 LLC, the “Merger Subs,” and the Merger Subs, together
with Parent, the “Parent Entities”), the Partnership and Rentech Nitrogen GP,
LLC, a Delaware limited liability company (the “Partnership GP”), propose to
enter into an Agreement and Plan of Merger, dated as of the date hereof (the
“Merger Agreement”; capitalized terms used herein without definition shall have
the respective meanings specified in the Merger Agreement), pursuant to which,
among other things, (a) Merger Sub 1 will be merged with and into the
Partnership GP, with the Partnership GP surviving as a wholly owned Subsidiary
of Parent, and (b) Merger Sub 2 will be merged with and into the Partnership,
with the Partnership surviving as a wholly owned Subsidiary of Parent, all upon
the terms and subject to the conditions set forth in the Merger Agreement (the
“Mergers”);
WHEREAS, the approval of the Mergers and the adoption of the Merger Agreement by
the holders of a majority of the issued and outstanding Partnership Common Units
entitled to vote as of the record date is a condition to the consummation of the
Mergers; and
WHEREAS, as a condition to the willingness of the Parent Entities to enter into
the Merger Agreement and as an inducement and in consideration therefor, the
Unitholders have agreed to enter into this Agreement.
NOW, THEREFORE, in consideration of the foregoing, the mutual covenants and
agreements set forth herein, and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, intending to be
legally bound, the parties hereto agree as follows:

    
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Article I
VOTING; GRANT AND APPOINTMENT OF PROXY
Section 1.1    Voting. From and after the date hereof until the earlier of
(a) the consummation of the Mergers and (b) the termination of the Merger
Agreement pursuant to and in compliance with the terms therein (such earlier
date, the “Expiration Date”), each of the Unitholders irrevocably and
unconditionally hereby agrees that at any meeting (whether annual or special and
each adjourned or postponed meeting) of the Partnership Unitholders, however
called, or in connection with any written consent of the Partnership
Unitholders, such Unitholder (in such capacity and not in any other capacity)
will (i) appear at such meeting or otherwise cause all of the Securities
(whether owned beneficially or of record by such Unitholder) to be counted as
present thereat for purposes of calculating a quorum and (ii) vote or cause to
be voted (including by proxy or written consent, if applicable) all of the
Securities (whether owned beneficially or of record by such Unitholder):
(a)    with respect to each meeting at which a vote of such Unitholder on the
Mergers is requested (a “Merger Proposal”), in favor of the Merger Proposal
(and, in the event that the Merger Proposal is presented as more than one
proposal, in favor of each proposal that is part of the Merger Proposal), and in
favor of any other matter presented or proposed as to approval of the Mergers or
any part or aspect thereof or any other transactions or matters contemplated by
the Merger Agreement;
(b)    against any Alternative Proposal, without regard to the terms of such
Alternative Proposal, or any other transaction, proposal, agreement or action
made in opposition to adoption of the Merger Agreement or in competition or
inconsistent with the Mergers and the other transactions or matters contemplated
by the Merger Agreement;
(c)    against any other action, agreement or transaction that is intended, that
would reasonably be expected, or the effect of which would reasonably be
expected, to materially impede, interfere with, delay, postpone, discourage or
adversely affect the Mergers or any of the other transactions contemplated by
the Merger Agreement or the performance of its obligations under this Agreement,
including any of the following: (i) any extraordinary corporate transaction,
such as a merger, consolidation or other business combination involving the
Partnership or any of its Subsidiaries; (ii) a sale, lease or transfer of all or
substantially all of the assets of the Partnership and its Subsidiaries, taken
as a whole, or a reorganization, recapitalization or liquidation of the
Partnership and its Subsidiaries; or (iii) any material change in the present
capitalization or distribution policy of the Partnership or any amendment or
other change to the Partnership Certificate of Limited Partnership, the Existing
Partnership Agreement or other organizational documents of the Partnership or
its Subsidiaries, excluding, in each such case, (A) any action, agreement or
transaction that is approved in writing by Parent, (B) the Mergers and (C) any
other transaction that is expressly contemplated by or provided for in the
Merger Agreement; and
(d)    against any action, proposal, transaction or agreement that would
reasonably be expected to result in a breach in any respect of any covenant,
representation or warranty or any other obligation or agreement of the
Partnership Entities contained in the Merger Agreement, or of such Unitholder
contained in this Agreement; and

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(e)    in favor of any other matter necessary or desirable to the consummation
of the transactions contemplated by the Merger Agreement, including the Mergers
(clauses (a) through (e), the “Required Votes”).
Section 1.2    Grant of Irrevocable Proxy; Appointment of Proxy.
(a)    From and after the date hereof until the Expiration Date, each Unitholder
hereby irrevocably and unconditionally grants to, and appoints, Parent and any
designee thereof as such Unitholder’s proxy and attorney-in-fact (with full
power of substitution), for and in the name, place and stead of such Unitholder,
to vote or cause to be voted (including by proxy or written consent, if
applicable) its Securities in accordance with the Required Votes.
(b)    Each Unitholder hereby represents that any proxies heretofore given in
respect of the Securities, if any, are revocable, and hereby revokes such
proxies.
(c)    Each Unitholder hereby affirms that the irrevocable proxy set forth in
this Section 1.2 is given in connection with the execution of the Merger
Agreement, and that such irrevocable proxy is given to secure the performance of
the duties of such Unitholder under this Agreement. Each Unitholder hereby
further affirms that the irrevocable proxy set forth in this Section 1.2 is
coupled with an interest and, except upon the occurrence of the Expiration Date,
is intended to be irrevocable.
Section 1.3    Restrictions on Transfers. Each Unitholder hereby agrees that,
from the date hereof until the Expiration Date, it shall not, directly or
indirectly, except in connection with the consummation of the Mergers (and
excluding the restrictions described in Schedule A hereto), (a) sell, transfer
(by gift or otherwise), assign, tender in any tender or exchange offer, pledge,
encumber, hypothecate or similarly dispose of (by merger, by testamentary
disposition, by operation of law or otherwise), either voluntarily or
involuntarily, or to enter into any contract, option or other arrangement or
understanding with respect to the sale, transfer, assignment, pledge, Lien,
hypothecation or other disposition of (by merger, by testamentary disposition,
by operation of Law or otherwise), any Securities, (b) deposit any Securities
into a voting trust or enter into a voting agreement or arrangement or grant any
proxy, consent or power of attorney with respect thereto that is inconsistent
with this Agreement, or (c) agree to take any of the actions referred to in the
foregoing clause (a) or (b).
Section 1.4    Partnership Change in Recommendation. Notwithstanding anything to
the contrary in this Agreement, if at any time following the date hereof and
prior to the Expiration Date there occurs a Partnership Change in Recommendation
pursuant to Section 6.5(d) of the Merger Agreement, then the obligations of each
Unitholder set forth in Section 1.1 and the irrevocable proxy and power of
attorney in Section 1.2 shall be of no force and effect. Notwithstanding
anything to the contrary in this Section 1.4, the restrictions set forth in
Section 1.3 shall continue to apply with respect to the Securities until the
Expiration Date.
Section 1.5    Injunction. Notwithstanding anything to the contrary in this
Agreement, if at any time following the date hereof and prior to the Expiration
Date a Governmental Authority of competent jurisdiction enters an order
restraining, enjoining or otherwise prohibiting the

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Unitholders or their Affiliates from (x) consummating the transactions
contemplated by the Merger Agreement or (y) taking any action pursuant to
Section 1.1 or Section 1.2 of this Agreement, then (i) the obligations of each
Unitholder set forth in Section 1.1 and the irrevocable proxy and power of
attorney in Section 1.2 shall be of no force and effect for so long as such
order is in effect and, in the case of clause (y), solely to the extent such
order restrains, enjoins or otherwise prohibits such Unitholder from taking any
such action, and (ii) each Unitholder shall cause the Securities to not be
represented in person or by proxy at any meeting at which a vote of such
Unitholder on the Mergers is requested. Notwithstanding anything to the contrary
in this Section 1.5, the restrictions set forth in Section 1.3 shall continue to
apply with respect to the Securities until the Expiration Date.
Article II    
NO SOLICITATION
Section 2.1    Alternative Proposals.
(a)    The Unitholders will, and will cause their respective Subsidiaries and
directors, officers, and employees, and will use commercially reasonable efforts
to cause their respective other Representatives and their Affiliates to,
immediately cease and cause to be terminated any discussions or negotiations
with any Person conducted heretofore with respect to an Alternative Proposal.
Except as permitted by this Section 2.1, the Unitholders will not, and will
cause their respective Subsidiaries and directors, officers and employees not
to, and will use commercially reasonable efforts to cause their respective other
Representatives and their Affiliates and their respective Representatives not
to, directly or indirectly, (i) initiate, solicit, knowingly encourage or
knowingly facilitate any inquiry, proposal or offer that would reasonably be
expected to lead to an Alternative Proposal, or (ii) participate in any
discussions or negotiations regarding, or furnish (or afford access to) to any
Person any non-public information that could reasonably be expected to give rise
to any Alternative Proposal. Promptly following the date hereof, the Unitholders
shall: (A) withdraw and terminate access that was granted to any Person (other
than the Parent Entities and their Representatives) to any “data room” (virtual
or physical) that was established in connection with the transactions
contemplated by the Merger Agreement and (B) exercise any contractual rights
available to any of them to cause each Person (other than the Parent Entities
and their Representatives) who received non-public or confidential information
of any of the Partnership Entities or any of their Subsidiaries to cause such
Persons to promptly return to the Unitholders or destroy such information.
Notwithstanding anything to the contrary contained in this Section 2.1, if at
any time following the date of this Agreement and prior to obtaining the
Partnership Unitholder Approval, (1) the Partnership has received a written
Alternative Proposal, which was not solicited after the date of this Agreement,
that the Partnership Board believes is bona fide and did not result from a
breach of this Section 2.1 or Section 6.5 of the Merger Agreement and (2) the
Partnership Board, after consultation with its financial advisors and outside
legal counsel, determines in good faith that such Alternative Proposal
constitutes or could reasonably be expected to lead to or result in a Superior
Proposal, then each Unitholder may, subject to clauses (x) and (y) below,
(I) furnish information, including confidential information, with respect to the
Partnership or its Affiliates to the Person making such Alternative Proposal and
(II) participate in discussions or negotiations regarding such Alternative
Proposal; provided that (x) (I) at least 24 hours prior to furnishing such

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non-public information to, or entering into discussions or negotiations with,
such Person, the Partnership gives Parent written notice of the identity of such
Person, and the intention to furnish non-public information to, or enter into
discussions or negotiations with, such Person and (II) the Partnership received
from such Person, and delivers to Parent a copy of, an executed confidentiality
agreement containing provisions, including limitations on the use and disclosure
of non-public written and oral information furnished to such Person by or on
behalf of the Partnership, not materially less favorable to the Partnership than
the provisions of the Confidentiality Agreements are to the Partnership Entities
and (y) the Partnership will provide to Parent any non-public information was
not previously provided or made available to Parent prior to or substantially
concurrently with providing or making available such non-public information to
such other Person.
(b)    In addition to the obligations of the Unitholders set forth in this
Section 2.1, the Unitholders will promptly (and in no event later than
twenty-four (24) hours after receipt) advise Parent in writing if any proposal,
offer or inquiry is received by, any information is requested from, or any
discussions or negotiations are sought to be initiated with, the Unitholders in
respect of any Alternative Proposal, and shall, in any such notice to Parent,
indicate the identity of the Person making such proposal, offer, or inquiry and
the terms and conditions of any proposals or offers (and shall include with such
notice copies of any written materials received from or on behalf of such Person
relating to such proposal, offer, inquiry or request), and thereafter shall
promptly keep Parent reasonably informed of all material developments affecting
the status and terms of any such proposals, offers, inquiries or requests (and
such Unitholder shall promptly, and in any event within twenty-four (24) hours,
provide Parent with copies of any additional written materials received by the
Unitholders or that such Unitholder has delivered to any third party making an
Alternative Proposal that relate to such proposals, offers, inquiries or
requests) and of the status of any such discussions or negotiations. Each
Unitholder agrees that neither such Unitholder nor any of its Subsidiaries will
enter into any agreement with any person subsequent to the date of this
Agreement which prohibits such Unitholder from providing any information to
Parent in accordance with this Section 2.1.
Section 2.2    Capacity. Each Unitholder that is a natural person that is or
becomes a party to this Agreement solely in its capacity as a Partnership
Unitholder, and nothing contained herein shall in any way limit or affect any
actions taken by any Representative of such Unitholder in his or her capacity as
a director, officer or employee of the Partnership GP or the Partnership, and no
action taken in any such capacity as a director, officer or employee shall be
deemed to constitute a breach of this Agreement.
Article III    
REPRESENTATIONS, WARRANTIES AND COVENANTS
OF THE UNITHOLDERS
Section 3.1    Representations and Warranties. Each Unitholder represents and
warrants to Parent as follows: (a) such Unitholder has the requisite corporate
or limited liability company power and authority to execute, deliver and perform
its obligations under this Agreement and to consummate the transactions
contemplated hereby, (b) this Agreement has been duly executed and delivered by
such Unitholder, (c) assuming due authorization, execution and delivery by
Parent,

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this Agreement constitutes the valid and binding agreement of the Unitholder,
enforceable against such Unitholder in accordance with its terms (except to the
extent that its enforceability may be limited by applicable bankruptcy,
insolvency, reorganization or other similar Law affecting the enforcement of
creditors’ rights generally or by general equitable principles), (d) the
execution, delivery and performance of this Agreement and the consummation of
the transactions contemplated hereby by such Unitholder have been duly
authorized by all necessary action on the part of such Unitholder and do not and
will not conflict with or violate any Laws or agreements binding upon such
Unitholder, nor require any authorization, consent or approval of any
Governmental Authority required to be obtained by such Unitholder, or a filing
with any Governmental Authority required to be made by such Unitholder, except
for filings with the SEC by such Unitholder and approvals under Antitrust Laws,
(e) such Unitholder owns, beneficially and of record, the number of Unitholder
Common Units described in the first recital hereto, and Partnership Parent
beneficially owns all the Unitholder Common Units, and (f) except (i) as
described in Schedule A hereto or (ii) for the restrictions created under this
Agreement, the Securities Act or applicable “blue sky” laws, such Unitholder
owns, beneficially and of record, all such Unitholder Common Units free and
clear of any proxy, voting restriction, adverse claim or other Lien and has sole
voting power with respect to such Unitholder Common Units and sole power of
disposition with respect to all such Unitholder Common Units, with no
restrictions on such Unitholder’s rights of voting or disposition pertaining
thereto, and no person other than such Unitholder has any right to direct or
approve the voting or disposition of any of the Securities.
Section 3.2    Certain Other Agreements. Each Unitholder hereby:
(a)    irrevocably waives, and agrees not to exercise, any rights of appraisal
or rights of dissent from the Mergers that such Unitholder may have with respect
to the Securities;
(b)    agrees to promptly notify Parent of the number of any additional
Securities acquired by such Unitholder or any of its Subsidiaries after the date
hereof and prior to the Expiration Date; and, for the avoidance of doubt, any
such Securities shall be subject to the terms of this Agreement as though owned
by such Unitholder on the date hereof;
(c)    agrees to permit Parent and the Partnership to publish and disclose in
the Proxy Statement such Unitholder’s identity and ownership of the Securities
and the nature of such Unitholder’s commitments, arrangements and understandings
under this Agreement; and
(d)    shall and does authorize Parent or its counsel to notify the
Partnership’s transfer agent that there is a stop transfer order with respect to
all of the Securities (and that this Agreement places limits on the voting and
transfer of such Securities); provided that Parent or its counsel further
notifies the Partnership’s transfer agent to lift and vacate the stop transfer
order with respect to the Securities following the Expiration Date.
Section 3.3    Confidentiality and Non-Solicitation.
(a)    For a period of five (5) years after the Closing, each Unitholder shall
not and shall cause its Subsidiaries and shall use commercially reasonable
efforts to cause its Affiliates not to and its and their respective
Representatives not to, directly or indirectly, disclose to any Person

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any trade secret, confidential or proprietary business information, data or
material primarily relating to the Included Subsidiaries or the business or
operations of the Included Subsidiaries (collectively, the “Information”)
acquired prior to the Closing, which has not become generally available to the
public (other than as a result of a breach of this Section 3.3(a)).
Notwithstanding anything to the contrary in the foregoing, each Unitholder or
any of its Subsidiaries or Affiliates may disclose the Information if they are
required to do so by applicable Law, regulation or legal or regulatory process;
provided that such Unitholder or any of its Subsidiaries or Affiliates (i) take
commercially reasonable steps, at Parent’s sole cost and expense, to preserve
the privileged nature or confidentiality of the Information, including
requesting that the Information not be disclosed to non-parties or the public;
(ii) to the extent permitted by Law, give Parent prompt prior written notice of
such request or requirement so that Parent may seek, at its sole cost and
expense, an appropriate protective order or other remedy; and (iii) reasonably
cooperate with Parent, at Parent’s sole cost and expense, to obtain such
protective order. In the event that such protective order or other remedy is not
obtained, each Unitholder or any of its Subsidiaries or Affiliates (or such
other persons to whom such request is directed) will furnish only that portion
of the Information which is, on the advice of such Unitholder’s counsel, legally
required to be disclosed and, upon Parent’s request, and at Parent’s sole cost
and expense, use commercially reasonable efforts to obtain assurances that
confidential treatment will be accorded to such information.
(b)    For a period of five (5) years after the Closing, Parent shall not and
shall cause its Subsidiaries and shall use commercially reasonable efforts to
cause its Affiliates not to and its and their respective Representatives not to,
directly or indirectly, disclose to any Person any trade secret, confidential or
proprietary business information, data or material primarily relating to Rentech
Nitrogen Pasadena Holdings, LLC and Rentech Nitrogen Pasadena, LLC (the
“Pasadena Entities”) or the business or operations of the Pasadena Entities
(collectively, the “Pasadena Information”) acquired prior to the Closing, which
has not become generally available to the public (other than as a result of a
breach of this Section 3.3(b)). Notwithstanding anything to the contrary in the
foregoing, Parent or any of its Subsidiaries or Affiliates may disclose the
Pasadena Information if they are required to do so by applicable Law, regulation
or legal or regulatory process; provided that Parent or any of its Subsidiaries
or Affiliates (i) take commercially reasonable steps, at the Unitholders’ sole
cost and expense, to preserve the privileged nature or confidentiality of the
Pasadena Information, including requesting that the Pasadena Information not be
disclosed to non-parties or the public; (ii) to the extent permitted by Law,
give the Unitholders prompt prior written notice of such request or requirement
so that the Unitholders may seek, at their sole cost and expense, an appropriate
protective order or other remedy; and (iii) reasonably cooperate with the
Unitholders, at the Unitholders’ sole cost and expense, to obtain such
protective order. In the event that such protective order or other remedy is not
obtained, Parent or any of its Subsidiaries or Affiliates (or such other persons
to whom such request is directed) will furnish only that portion of the Pasadena
Information which is, on the advice of Parent’s counsel, legally required to be
disclosed and, upon the Unitholders’ request, and at the Unitholders’ sole cost
and expense, use commercially reasonable efforts to obtain assurances that
confidential treatment will be accorded to such information.
(c)    For a period of two (2) years after the Closing, each Unitholder shall
not, and shall cause its Subsidiaries to not, anywhere in North America,
directly or indirectly, hire, engage or solicit for employment (or engagement as
consultant) any employees of the Partnership

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Entities or the Included Subsidiaries or knowingly encourage or induce or
attempt to encourage or induce any such Person to leave such employment or
engagement, while the same are still employed by such Person and for a period of
six (6) months following the termination of such employment. The restrictions in
this Section 3.3(b) shall not apply to any solicitation and related employment
by way of general advertising, including general solicitations in any local,
regional or national newspapers or other publications or circulars or on
internet sites or any search firm engagement which are not directed or focused
on employees of the Partnership Entities or the Included Subsidiaries. Each
Unitholder agrees that Parent may seek to enforce this Section 3.3(b) by seeking
to obtain injunctions, restraining orders and other equitable actions pursuant
to Section 5.8(b).
(d)    For a period of two (2) years after the Closing, Parent shall not and
shall cause its Subsidiaries to not, anywhere in North America, directly or
indirectly, hire, engage or solicit for employment (or engagement as consultant)
any employees of the Pasadena Entities or knowingly encourage or induce or
attempt to encourage or induce any such Person to leave such employment or
engagement, while the same are still employed by such Person and for a period of
six (6) months following the termination of such employment. The restrictions in
this Section 3.3(d) shall not apply to any solicitation and related employment
by way of general advertising, including general solicitations in any local,
regional or national newspapers or other publications or circulars or on
internet sites or any search firm engagement which are not directed or focused
on employees of the Pasadena Entities. Parent agrees that Partnership Parent and
the Unitholders may seek to enforce this Section 3.3(d) by seeking to obtain
injunctions, restraining orders and other equitable actions pursuant to Section
9.11 of the Merger Agreement.

Article IV    
TERMINATION
This Agreement shall terminate and be of no further force or effect upon the
Expiration Date. Notwithstanding the preceding sentence, this Article IV,
Article V and Section 3.3 shall survive any termination of this Agreement.
Nothing in this Article IV relieves any party of any liability for any breach of
any covenant or agreement contained herein occurring prior to termination.
Article V    
MISCELLANEOUS
Section 5.1    Expenses. Each party shall bear its expenses, costs and fees
(including attorneys’, auditors’ and financing fees, if any) in connection with
the preparation, execution and delivery of this Agreement and compliance
herewith, whether or not the Mergers and the other transactions contemplated by
the Merger Agreement are effected.
Section 5.2    Notices. All notices and other communications hereunder must be
in writing and will be deemed duly given if delivered personally or through
facsimile transmission, or mailed by a nationally recognized overnight courier
or registered or certified mail (return receipt requested), postage prepaid, to
the parties at the following addresses (or at such other address for a party as
specified by like notice, provided, that notices of a change of address will be
effective only upon receipt thereof):

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If to Parent, to:

CVR GP, LLC
10 East Cambridge Circle Drive, Suite 250
Kansas City, Kansas 66103
Attention: General Counsel
Facsimile: (913) 982-0976

With a copy to (which does not constitute notice):

Vinson & Elkins L.L.P.
1001 Fannin Street, Suite 2500
Houston, Texas 77002
Attention: Jeffery B. Floyd and E. Ramey Layne
Facsimile: (713) 615-5660

If to the Unitholders:

Rentech Nitrogen Partners, L.P.
10877 Wilshire Boulevard, 10th Floor
Los Angeles, CA 90024
Attention: Colin M. Morris
Facsimile: (310) 208-7165

With a copy to (which does not constitute notice):

Latham & Watkins LLP
140 Scott Drive
Menlo Park, CA 94025
Attention: Anthony J. Richmond and David A. Zaheer
Facsimile: (650) 463-2600

Notices will be deemed to have been received (x) on the date of receipt if
(i) delivered by hand or nationally recognized overnight courier service or (ii)
upon receipt of an appropriate electronic answerback or confirmation when so
delivered by fax (to such number specified above or another number or numbers as
such Person may subsequently designate by notice given hereunder only if
following by overnight or hand delivery) or (y) on the date five (5) Business
Days after dispatch by certified or registered mail.

Section 5.3    Amendments; Waivers. Any provision of this Agreement may be
amended or waived if, and only if, such amendment or waiver is in writing and
signed (a) in the case of an amendment, by each of the parties, and (b) in the
case of a waiver, by the party against whom the waiver is to be effective. No
failure or delay by any party in exercising any right, power or privilege
hereunder shall operate as a waiver thereof, nor shall any single or partial
exercise thereof preclude any other or further exercise thereof or the exercise
of any other right, power or privilege.

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Section 5.4    Assignment. No party to this Agreement may assign any of its
rights or obligations under this Agreement without the prior written consent of
the other party hereto.
Section 5.5    No Partnership, Agency, or Joint Venture. This Agreement is
intended to create, and creates, a contractual relationship and is not intended
to create, and does not create, any agency, partnership, joint venture or any
like relationship between the parties hereto.
Section 5.6    Entire Agreement. This Agreement constitutes the entire agreement
and understanding of the parties hereto with respect to the matters herein and
supersedes all prior agreements and understandings on such matters.
Section 5.7    No Third-Party Beneficiaries. The provisions of this Agreement
are binding upon, inure to the benefit of the parties hereto and their
respective successors and assigns, and no provision of this Agreement is
intended to confer any rights, benefits, remedies, obligations or liabilities
hereunder upon any Person other than the parties hereto and their respective
successors. Notwithstanding the foregoing, upon the consummation of a Qualified
Pasadena Sale, the buyer in such transaction shall be an intended third party
beneficiary of the provisions of Section 3.3(b) and Section 3.3(d) and may
enforce such provisions against Parent as if it was a party to this Agreement.
Section 5.8    Jurisdiction; Specific Performance; Waiver of Jury Trial.
(a)    The parties hereto submit to the exclusive jurisdiction of the Court of
Chancery of the State of Delaware or, if such Court does not have subject matter
jurisdiction, to the Superior Court of the State of Delaware or, if jurisdiction
is vested exclusively in the Federal courts of the United States, the Federal
courts of the United States sitting in the State of Delaware, and any appellate
court from any such state or Federal court, and hereby irrevocably and
unconditionally agree that all claims with respect to any such claim shall be
heard and determined in such Delaware court or, to the extent required by
applicable Law, in such Federal court. The parties agree that a final judgment
in any such claim is conclusive and may be enforced in any other jurisdiction by
suit on the judgment or in any other manner provided by law. Each of the parties
irrevocably and unconditionally waives, to the fullest extent it may legally and
effectively do so, any objection which it may now or hereafter have to the
laying of venue of any suit, action or proceeding arising out of or relating to
this Agreement or any related matter in any Delaware state or Federal court
located in the State of Delaware and the defense of an inconvenient forum to the
maintenance of such claim in any such court.
(b)    The parties agree that irreparable damage would occur and that the
parties would not have any adequate remedy at law in the event that any of the
provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise breached and it is accordingly agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce specifically the terms and provisions of this
Agreement, in each case, in accordance with this Section 5.8(b) in the Delaware
Court of Chancery or any state or federal court sitting in the State of
Delaware, this being in addition to any other remedy to which they are entitled
at law or in equity. Each of the parties agrees that it will not oppose the
granting of an injunction, specific performance and other equitable relief as
provided herein on the basis that (a) either party has an adequate remedy at law
or (b) an award of specific performance is not an

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appropriate remedy for any reason at law or equity. Each party further agrees
that no party shall be required to obtain, furnish or post any bond or similar
instrument in connection with or as a condition to obtaining any remedy referred
to in this Section 5.8(b), and each party irrevocably waives any right it may
have to require the obtaining, furnishing or posting of any such bond or similar
instrument.
(c)    To the extent not prohibited by applicable Law that cannot be waived,
each party hereby irrevocably waives and covenants that it will not assert
(whether as plaintiff, defendant or otherwise) any right to trial by jury in any
forum in respect of any issue, claim, demand, action or cause of action arising
in whole or in part under, related to, based on, or in connection with, this
Agreement or the subject matter hereof, whether now existing or hereafter
arising and whether sounding in tort or contract or otherwise. Any party may
file an original counterpart or a copy of this Section 5.8(c) with any court as
written evidence of the consent of each such party to the waiver of its right to
trial by jury.
Section 5.9    Governing Law. This Agreement, and all claims or causes of action
(whether in contract or tort) that may be based upon, arise out of or relate to
this Agreement, or the negotiation, execution or performance of this Agreement
(including any claim or cause of action based upon, arising out of or related to
any representation or warranty made in or in connection with this Agreement or
as an inducement to enter into this Agreement), shall be governed by the Laws of
the State of Delaware, without giving effect to any conflicts of law principles
that would result in the application of any Law other than the Law of the State
of Delaware.
Section 5.10    Interpretation. Unless expressly provided for elsewhere in this
Agreement, this Agreement will be interpreted in accordance with the following
provisions: (a) the words “this Agreement,” “herein,” “hereby,” “hereunder,”
“hereof,” and other equivalent words refer to this Agreement as an entirety and
not solely to the particular portion, article, section, subsection or other
subdivision of this Agreement in which any such word is used; (b) examples are
not to be construed to limit, expressly or by implication, the matter they
illustrate; (c) the word “including” and its derivatives means “including
without limitation” and is a term of illustration and not of limitation; (d) all
definitions set forth herein are deemed applicable whether the words defined are
used herein in the singular or in the plural and correlative forms of defined
terms have corresponding meanings; (e) the word “or” is not exclusive, and has
the inclusive meaning represented by the phrase “and/or”; (f) a defined term has
its defined meaning throughout this Agreement and each exhibit and schedule to
this Agreement, regardless of whether it appears before or after the place where
it is defined; (g) wherever used herein, any pronoun or pronouns will be deemed
to include both the singular and plural and to cover all genders; (h) this
Agreement has been jointly prepared by the parties, and this Agreement will not
be construed against any Person as the principal draftsperson hereof or thereof
and no consideration may be given to any fact or presumption that any party had
a greater or lesser hand in drafting this Agreement; (i) the captions of the
articles, sections or subsections appearing in this Agreement are inserted only
as a matter of convenience and in no way define, limit, construe or describe the
scope or extent of such section, or in any way affect this Agreement; (j) any
references herein to a particular Section or Schedule means a Section or
Schedule to this Agreement unless otherwise expressly stated herein; and (k) all
references to days mean calendar days unless otherwise provided.

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Section 5.11    Counterparts. This Agreement may be executed in any number of
counterparts, each of which is an original, and all of which, when taken
together, constitute one Agreement. Delivery of an executed signature page of
this Agreement by facsimile or other customary means of electronic transmission
(e.g., pdf) will be effective as delivery of a manually executed counterpart
hereof.
Section 5.12    Headings. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.
Section 5.13    Severability. Any provision of this Agreement which is invalid,
illegal or unenforceable in any jurisdiction will, as to that jurisdiction, be
ineffective only to the extent of such invalidity, illegality or
unenforceability, without affecting in any way the remaining provisions hereof
in such jurisdiction or rendering that or any other provision of this Agreement
invalid, illegal or unenforceable in any other jurisdiction.
(signature page follows)

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IN WITNESS WHEREOF, the parties hereto have duly executed and delivered this
Agreement as of the date and year first written above.

CVR PARTNERS, LP
            
By:    CVR GP, LLC, its general partner

By:    /s/ Mark A. Pytosh            
Name:    Mark A. Pytosh        
Title:    Chief Executive Officer and President

RENTECH, INC.
By:    /s/ Keith B. Forman_______________
Name:    Keith B. Forman    
Title:    President & Chief Executive Officer

RENTECH NITROGEN HOLDINGS, INC.
By:    /s/ Keith B. Forman_______________
Name:    Keith B. Forman    
Title:    President & Chief Executive Officer

DSHC, LLC

By:    /s/ Colin Morris__________________
Name:    Colin Morris    
Title:    President

SCHEDULE A
Restrictions on Unitholder Common Units
1.
Amended and Restated Term Loan Credit Agreement, dated as of February 12, 2015,
by and among Rentech Nitrogen Holdings, Inc., the lenders party thereto, and
Credit Suisse AG, Cayman Islands Branch, as administrative agent

2.
Amended and Restated Pledge Agreement, dated as of February 12, 2015, by and
between the Rentech Nitrogen Holdings, Inc. and Credit Suisse AG, Cayman Islands
Branch

3.
Amended and Restated Pledge Agreement, dated as of February 12, 2015, by and
between DHSC LLC, Credit Suisse AG, Cayman Islands Branch and the optionees
listed thereto

Signature Page to Voting and Support Agreement