EX 10.11

  RENTECH, INC.


  March 4, 1999


  Mr. Luiz Carlos De Queiroz
  BC Projetos
  Av. Marechal Floriano, 45/10 and.
  Rio de Janeiro, RJ CEP 20080-003

  RE:  Memorandum of Understanding

  Dear Luiz:

       The purpose of this letter is to set forth an agreement between BC
  Projetos Ltda. and Rentech Inc. for the purpose of exploiting the
  opportunities in Brazil for use of the Rentech Fischer-Tropsch
  Technology.  This letter will address the following subjects:

  $         Background of the situation
  $         The Petrobras/TDA project
  $         BC Projetos role and Rentech relationship

  BACKGROUND OF THE SITUATION

  Rentech is actively pursuing an opportunity with Petrobras for an
  evaluation of the use of the Rentech Technology in the Amazon region to
  convert stranded natural gas, currently being re-injected, to a clean
  liquid fuel for distribution in the region.  BC Projetos has
  relationships with Petrobras and has assisted Rentech in setting up
  meetings and presentations to Petrobras.

  It is the intention of Rentech that the initial feasibility work be
  funded by the U.S. Trade and Development Agency (TDA) which will require
  a detailed proposal and approval for funding.

  Rentech and BC Projetos have had several conversations and meetings
  regarding the possible mutual advantages of working together on projects
  in Brazil and specifically targeting the Petrobras project for the
  Amazon.

  THE PETROBRAS/TDA PROJECT

  Petrobras is the national energy company that controls all the natural
  gas and oil in Brazil.  They have significant natural gas reserves in the
  Amazon region that they re-inject because there is no transmission or
  distribution infrastructure.  A number of studies have been completed for
  the utilization of this resource.  These studies include a transmission
  pipeline, conversion to LNG for shipping out of the region, and power
  generation.  It is our understanding that those options have
  not proven economical.

  Rentech is proposing that a feasibility study be undertaken to consider
  the application of the Rentech Fischer-Tropsch Technology.  Followed by a
  detailed conceptual study.  Should the project prove to be economical
  upon completion of the detailed conceptual study then Rentech and BC
  Projetos would seek a project owner and developer.

  The funding for the feasibility and detailed conceptual work would be
  through a grant from the U.S. Trade and Development Agency.

  BC PROJETOS ROLE AND RENTECH RELATIONSHIP

  BC Projetos is an engineering firm in Brazil with years of experience and
  a well-qualified process engineering staff.  BC Projetos also has
  relationships with Petrobras that can assist Petrobras in moving forward
  with the proposed project as well as other potential projects that
  could utilize the Rentech Technology.

  Rentech proposes that this letter set up a relationship with BC Projetos
  for projects in Brazil.  BC Projetos would be the engineer of preference
  in Brazil for Rentech with the role of BC Projetos defined as follows:

  Marketing support for Rentech in Brazil including:

  $         Identification of potential projects.
  $         Setting up meetings for Rentech with Brazilian clients.
  $         Identification of potential partners for project and
  financing structures in Brazil.
  $         Proposal translation and submittal for projects in Brazil.

  Engineering support for projects in Brazil including:

  $         Feasibility engineering.
  $         Data gathering.
  $         Preliminary flow sheets and process material balances.
  $         Site tours and reviews, development of plot plans.
  $         Soils analysis and sampling.
  $         Environmental permit process and review.
  $         Environmental permits applications.
  $         Local material and construction cost estimating.
  $         Government regulations on importing and taxing of process
  plan equipment.

  During the marketing phase on any project, BC Projetos would pay for its
  own marketing expenses and Rentech would pay for its own marketing
  expenses.  Once a project is defined and a client has awarded a contract
  to either BC Projetos or Rentech, then each party will receive payment
  for their respective services pursuant to a mutually negotiated contract
  between them.

  The U.S. TDA places restriction on payments of grant monies to foreign
  engineering companies of 25% of the grant.  Accordingly the Petrobras/TDA
  project that has been targeted would have BC Projetos working with a U.S.
  Engineering firm.  Rentech will use its best efforts to negotiate a scope
  of work with the U.S. Engineering firm that would provide the maximum
  services for BC Projetos.

  Should Rentech receive any interest by parties in Brazil, those would be
  shared with BC Projetos and a mutual response and follow up would be
  developed.  Rentech will provide marketing material and technical
  information to BC Projetos in support of their marketing and engineering
  efforts.

  It is understood that neither Rentech nor BC Projetos can control the
  clients and should a client desire to use a competing Fischer-Tropsch
  technology, BC Projetos is free to provide the engineering for the client
  using that specific technology.  Likewise, should the client prefer to
  use an alterative engineering firm, together with the Rentech Technology,
  then Rentech has the right to provide the technology and work with the
  client's designated engineer.  However, both Rentech and BC Projetos will
  diligently and in good faith attempt to convince the client of our team
  strength and preference for working together.

  Any disputes arising under this Memorandum of Understanding would be
  settled through arbitration under the rules of the American Arbitration
  Association.

  Should you have questions please call.

  Very truly yours
  Rentech, Inc.

     /s/
  by Richard Sheppard
  Director for GTL Marketing


  Read, Acknowledged and agreed to by:

  BC Projetos

    /s/
          8 MAR 99
  ______________________________________  _________________
  Signature

  Luiz Carlos De Queiroz
  Director