EX 10.15


  MEMORANDUM OF UNDERSTANDING
  FOR A
  NON-EXCLUSIVE LICENSE MARKETING AGREEMENT
  FOR THE
  CONVERSION OF NATURAL GAS TO GAS TO LIQUID
  FACILITIES
  WORLD WIDE


  This Agreement, made effective as of the 20th day of January 2000, by and
  between Jacobs Engineering U.K. Limited (hereinafter referred to as
  "Company", a corporation organized and existing under the laws of the
  United Kingdom, and Rentech, Inc. (hereinafter referred to as
  "Enterprise"), a corporation organized and existing under the laws of the
  State of Colorado.  For the purposes of this Agreement, Company and
  Enterprise are individually referred to as "Party" and collectively as
  the "Parties".

  WITNESSETH:

  WHEREAS, Company currently has an advanced position through many
  experiences and stored know-how in the engineering and construction of
  synthesis gas processing projects related to the oil and gas industry,

  WHEREAS, Enterprise has developed a synthesis gas-to-liquids process
  incorporating Fischer-Tropsch technology (hereinafter referred to as
  "F-T") with a slurry reaction bed and an iron-based catalyst known as the
  Rentech gas-to-liquids technology (hereinafter referred to as "Rentech
  GTL Technology").  The Rentech GTL Technology is useful for converting
  carbon-bearing gases into various liquid hydrocarbons such as synthetic
  diesel fuel, naphtha, wax, and other liquid hydrocarbon products; and

  WHEREAS, Enterprise and Company desire to set out more fully their
  agreements and the principles under which their mutual objectives are
  intended to be achieved.

  NOW, THEREFORE, in consideration of the mutual premises and covenants
  herein contained, the Parties do hereby agree as follows:

  1.   OBJECTIVES

  The Parties agree to cooperate on a plan to provide license and
  engineering services for natural gas facilities, including methanol and
  ammonia facility retrofits, to gas to liquid facilities worldwide (except
  as provided in paragraph 5) utilizing the Rentech GTL Technology for the
  projects and customers.  Company and/or its affiliates shall provide
  design, procurement, construction, project technical development and
  estimating services as may be required for a specific project.  Company
  will integrate the Rentech GTL Technology into the overall project
  process, if the overall project process extends beyond the Rentech GTL
  Technology.  Enterprise will provide the Rentech GTL Technology under its
  patents including the Rentech F-T unit design and specifications.

  2.   PATENT INDEMNITY

  The Enterprise shall defend, indemnify and hold the Company harmless from
  and against any claims which may arise for actual or alleged infringement
  of patents, copyrights or other intellectual property rights with respect
  to the Rentech GTL Technology.

  3.   MARKETING

  The Parties will jointly market their combined capabilities to potential
  customers; however, neither Party shall have the authority nor shall it
  represent itself as having the authority to bind or otherwise commit the
  other Party to any obligation or commitment with a third party.  The
  Parties shall continue to refine the details of their respective scopes
  of work as well as delineate the requirements, nature and details of any
  necessary agreements to be executed between the Parties for the
  performance of a specific project including but not limited to licensing
  agreements, consortium agreements and/or construction contracts or
  subcontracts.

  4.   BUSINESS RELATIONSHIP

  Notwithstanding any over provisions of this Agreement, nothing contained
  herein is intended or shall be deemed or construed as creating a
  partnership, joint venture or any other legal entity between the Parties
  nor any ongoing or continuing relationship or commitment between them
  except as specifically provided herein.

  5.   EXCLUSIVITY

  When the Company receives an enquiry from a customer to employ the
  Rentech GTL Technology, it shall notify the Enterprise.  The Parties
  shall then jointly consider each such opportunity.  On a case by case
  basis the Parties shall agree which projects involving the Rentech GTL
  Technology to jointly pursue, except that the Company shall have no
  involvement in projects where:  (i) the customer has selected another
  specific engineering firm  (ii) the customer is another engineering firm
  representing the customer,  (iii) the customer is Texaco Energy Systems,
  Inc., its licensee, an affiliate of Texaco Energy Systems, Inc. or its
  affiliate's licensee;  (iv) or the Rentech GTL Technology would be used
  in Brazil or India.  The Parties shall cause such agreed projects to be
  added by name to Exhibit ?A,? attached hereto and by this reference made
  a part hereof.  The two potential customers presently identified on
  Exhibit "A" have expressly rejected Dresser Engineering Company as their
  engineering contractor and have affirmatively selected the Company for
  that purpose.  During the term of this Agreement, the Parties shall have
  an exclusive relationship with each other as to the qualified customers
  identified on Exhibit "A," and neither Enterprise nor Company will in any
  way pursue or perform any aspect of a project listed on Exhibit "A"
  except as provided under the terms and conditions of this Agreement,
  either directly or indirectly, by way of a partnership, consortium,
  joint venture, or subcontract, except  (i) with the express written
  consent of the other Party which shall not be unreasonably withheld,
  and/or  (ii) the customer for a specific project determines that one of
  the Parties is unacceptable.

  6.   TECHNOLOGY LICENSE

  The Enterprise will negotiate in good faith with potential customers
  identified on Exhibit "A" as to the terms of a license agreement for use
  of the Rentech GTL Technology for each specific project listed in Exhibit
  "A."  If mutually acceptable terms are agreed upon between the Enterprise
  and the customer, the Enterprise will provide a Rentech GTL Technology
  license for the project.  The Company will share in the Royalty under the
  negotiated license on a split of 80% to Enterprise and 20% to Company to
  recognize the marketing costs associated with this agreement.

  7.   DURATION

  This Agreement shall be effective until the earlier of  (i) thirty six
  (36) months from the date hereof, or  (ii) upon six (6) months written
  notice from Company or Enterprise.  After termination of this Agreement,
  either Party shall be free from any obligation or liability to the other
  Party except for the obligations referred to in Article 2 and Article 9
  and obligations set forth in specific project agreements prior to
  termination, all of which survive the term of this Agreement.

  8.   ASSIGNMENT

  Neither Party shall transfer or assign any of its rights, liabilities, or
  obligations under this Agreement without the express written consent of
  the over Party, other than to one of its subsidiary or affiliated
  companies; provided, however, that the assigning Party shall not be
  relieved of any of its obligations under Articles 5 and 9 hereof.

  9.   EXPENSES

  Except as may be otherwise agreed to in writing each Party shall be
  responsible for and bear its own costs and expenses incurred in
  connection with the performance of its obligations under this Agreement.

  10.  CONFIDENTIALITY

  The Parties shall hold in confidence, and shall use only for the purposes
  of this Agreement, any and all Proprietary Information until five (5)
  years after completion or earlier termination of this Agreement pursuant
  to its terms.  For the purposes of this clause, the term "Proprietary
  Information" shall mean all information, which the Parties, directly or
  indirectly, acquire each from the other, excluding information falling
  into any of the following categories;

       (a)  Information which, at the time of disclosure hereunder, is in
  the public domain;

       (b)  Information which, after disclosure hereunder, enters the
  public domain other than by breach of this Agreement;

       (c)  Information, other than that obtained from third Parties,
  which, prior to disclosure hereunder, was already in the recipient's
  possession, either without limitation on disclosure to others or
  subsequently becoming free of such limitation;

       (d)  Information obtained by the recipient from a third party
  having an independent right to disclose this information; and

       (e)  Information which is made available through discovery by
  independent research without use of or access to the information acquired
  from the other Party.

  Disclosures which are specific (e.g., as to operating conditions and the
  like) shall not be deepened to be within the forgoing exceptions merely
  because they are embraced by general disclosures available to the general
  public or in Receiving Party's possession.  Additionally, any combination
  of features shall not be deemed to be within the foregoing exceptions
  merely because the individual features are available to the general
  public or in the Receiving Party's'possession unless the combination
  itself and its principle of operation are available to the general public
  or in Receiving Party's possession.  Each Party's obligation to the other
  Party with respect to Proprietary Information shall be deemed to be fully
  performed if that Party observes, with respect thereto, the same
  safeguards and precautions which that Party observes with respect to that
  Party's own Proprietary Information of the same or similar kind.

  11.  CONSEQUENTIAL DAMAGES

  Except as provided under Article 2, in no event shall either Party be
  liable to the other, whether arising under contract, tort (including
  negligence), strict liability, or otherwise, for loss of anticipated
  profits or revenue, loss of use of capital, downtime of facilities, loss
  of business reputation or opportunities, cost of money, or for any
  special, indirect, incidental, consequential or exemplary loss or damage
  of any nature arising at any time from any cause whatsoever, even if such
  loss or damage is caused by the negligence, in whole or in part, strict
  liability or other legal fault of the Party released hereunder.

  12.  APPLICABLE LAW AND ARBITRATION

  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
  LAWS OF THE STATE OF COLORADO, (WITHOUT REGARD TO CONFLICTS OF LAW).  ALL
  SUITS, ACTIONS OR PROCEEDINGS ARISING OUT OF OR RELATED TO THIS AGREEMENT
  (?RELATED PROCEEDINGS?) SHALL BE BROUGHT IN A COURT OF COMPETENT
  JURISDICTION LOCATED IN DENVER COUNTY, COLORADO, EACH OF WHICH COURTS
  SHALL BE AN APPROPRIATE FORUM FOR ALL SUCH RELATED PROCEEDINGS.  EACH
  PARTY HEREBY WAIVES ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO
  THE JURISDICTION OF ANY SUCH COURT OVER, OR THE LAYING OF VENUE IN ANY
  SUCH COURT OF ANY SUCH RELATED PROCEEDINGS.

  13.  COMPLIANCE

  Each Party agrees to comply strictly with all applicable laws,
  regulations and orders of the United States and all foreign
  jurisdictions.  Each Party hereby acknowledges and agrees that certain
  laws of the United States, including the Foreign Corrupt Practices Act,
  15 (U.S.C. Sections 78dd-1 et seq., prohibit any person subject to the
  jurisdiction of the United States from making any payment of money or
  anything of value, directly or indirectly, to any foreign government
  official, foreign political party, or candidate for foreign political
  office for the purpose of obtaining or retraining business.  Each Party
  hereby represents and warrants that, in the performance of its
  obligations hereunder, it has not made, and will not make, any such
  proscribed payment.  Each Party shall indemnify and hold the over Party
  and its affiliates, officers, directors, agents and employees harness
  against any and all claims, losses and liabilities attributable to any
  breach of this provision.

  14.  MISCELLANEOUS

  This Agreement contains every obligation and understanding between the
  Parties relating to the subject matter hereof and merges all prior
  discussions, negotiations and agreements, if any, between them, and
  neither of the Parties shall be bound by any conditions, definitions,
  understandings, warranties or representations relating to the subject
  matter hereof other than as expressly provided for or referred to in this
  Agreement.  This Agreement can be amended only by written instrument
  properly executed by the Parties; any purported amendment not in writing
  and properly executed shall be null, void and of no effect.

  Without intending to exclude other provisions of this Agreement that by
  their nature may so survive, the provisions of Article 8 shall survive
  any completion or earlier termination of this Agreement.

  IN WITNESS WHEREOF, the Parties have executed this Agreement as of the
  date hereinabove first stated.

  RENTECH, INC.            Jacobs Engineering U.K. Limited


    /s/ Dennis L. Yakobson John Nuloehler
  By:                      By:
  Its: President           Group Vice President


  EXHIBIT A

  LIST OF PROJECTS

  1.   Name                Feasibility Study (Targeted)

  Description                   Partial or total conversion to FT liquids


  2.   Name                Feasibility Study (Targeted)

  Description                   Natural Gas to Liquids Project