Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  RENTECH, INC.
 2. Date of Event Requiring Statement (Month/Day/Year)
04/04/2016		 3. Issuer Name and Ticker or Trading Symbol
CVR PARTNERS, LP [UAN]
(Last)
(First)
(Middle)
10877 WILSHIRE BLVD. 10TH FLOOR		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

LOS ANGELES 90024		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Units (1) 7,187,630
I
By Rentech Nitrogen Holdings, Inc. (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
RENTECH, INC.
10877 WILSHIRE BLVD. 10TH FLOOR
LOS ANGELES 90024		        

Signatures

/s/ Colin M. Morris, Authorized Person 04/11/2016
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Acquired pursuant to the Agreement and Plan of Merger, dated August 9, 2015, by and among CVR Partners, LP ("CVR Partners"), Lux Merger Sub 1 LLC, Lux Merger Sub 2 LLC, Rentech Nitrogen Partners, L.P. and Rentech Nitrogen GP, LLC ("Rentech Nitrogen"), pursuant to which each outstanding common unit representing a limited partner interest in Rentech Nitrogen, other than certain units held by affiliates of CVR Partners, were converted into the right to receive 1.04 newly issued common unit representing a limited partner interest in CVR Partners and $2.57 in cash.
(2) Rentech Nitrogen Holdings, Inc. is a directly, wholly-owned subsidiary of Rentech Development Corporation. Rentech Development Corporation is a direct, wholly-owned subsidiary of Rentech, Inc.
 
Remarks:
The reporting person disclaims beneficial ownership of all Common Units in excess of its pecuniary interest, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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