RENTECH INC /CO/
S-3/A, 2000-05-26
PAINTS, VARNISHES, LACQUERS, ENAMELS & ALLIED PRODS
Previous: PUTNAM ASIA PACIFIC GROWTH FUND, NSAR-A/A, 2000-05-26
Next: RENTECH INC /CO/, S-3/A, 2000-05-26




As filed with the Securities and Exchange Commission on May 25, 2000

                                        Registration No. 333-34890

                    SECURITIES AND EXCHANGE COMMISSION
                         Washington, D.C.  20549


                          -------------------------
                                   FORM S-3/A
                        Registration Statement Under
                        THE SECURITIES ACT OF 1933
                          -------------------------



                              RENTECH, INC.
           (Exact name of Registrant as specified in charter)

              Colorado                                       84-0957421
(State or other jurisdiction of                        (I.R.S. Employer
 Incorporation or organization)                     Identification No.)

                          1331 17th Street, Suite 720
                             Denver, Colorado 80202
                                (303) 298-8008

(Address, including zip code and telephone number, including area code,
of registrant's principal executive offices of business)
                          -------------------------
                             Dennis L. Yakobson
                     President and Chief Executive Officer
                                Rentech, Inc.
                           1331 17th St. Suite 720
                           Denver, Colorado  80202
                               (303) 298-8008
          (Name, address and telephone number of agent for service)

           Copies to:
                            Loren L. Mall, Esq.
                           Brega & Winters P.C.
                      1700 Lincoln Street, Suite 2222
                          Denver, Colorado  80203
                               (303) 866-9404

       Approximate date of commencement of proposed sale to the public:
From time to time after this Registration Statement becomes effective, as the
selling shareholders determine.

     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the
following box.  [   ]

     If any of the securities being registered on this Form are to be offered
on a delayed or continuous basis pursuant to Rule 415 under the Securities Act
of 1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box.  [ X ]

     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [   ]


     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [   ]

     If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box.  [   ]


     The Registrant hereby amends this Registration Statement on such date
or dates as may be necessary to delay its effective date until the
Registrant shall file a further amendment which specifically states
that this Registration Statement shall thereafter become effective in
accordance with Section 8(a) of the Securities Act of 1933 or until the
Registration Statement shall become effective on such date or dates as
the Commission, acting pursuant to said Section 8(a), may determine.

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



























<PAGE>
                                                    PAGE 2

                           CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------
Title and Class
of Securities           Amount to be    Proposed Maximum      Proposed Maximum      Amount of
to be Registered        Registered(1)   Offering Price        Aggregate Offering    Registration
                                        per Unit(2)           Price(1)              Fee
- ----------------        -------------   ----------------      ----------------      ------------
<S>                     <C>             <C>                   <C>                   <C>

Common Stock             7,410,560      $3.28125              $ 24,315,900.00       $  6,419.40

Common Stock Under-
lying Stock Options(3)   6,394,000      $3.28125              $ 20,980,312.50       $  5,538.80

Common Stock Under-
lying Stock Purchase
Warrants(3)                186,000      $3.28125              $    610,312.50        $   161.12

Total                   13,990,560      $3.28125              $ 45,906,525.00        $12,119.32
- ------------------------------------------------------------------------------------------------

<FN>
<F1>        Subject to adjustment pursuant to the anti-dilution provisions of the securities
            being registered on this Form, as allowed by Rule 416.
<F2>        Based on average of the high and low sales prices quoted on AMEX on April 12, 2000,
            within five days of the filing date, pursuant to Rule 457(c).  Estimated solely for
            the purpose of calculating the registration fee pursuant to Rule 457(c).
<F3>        Exercise of these stock options and warrants to purchase common stock, and issuance
            of additional shares of common stock and convertible securities that may be issued by
            Rentech, would reduce the percentage ownership of persons who purchase common stock
            in this offering, and other shareholders, and dilute the book value of the common
            stock held by them.

</FN>
</TABLE>






















  <PAGE>
                                                      PAGE 3


                       Subject to Completion, Dated May 25, 2000

  P R O S P E C T U S

                                RENTECH, INC.




                              13,990,560 Shares
                                Common Stock

       We are an energy company headquartered in Denver, Colorado.  Our
  technology converts gases derived from carbon-bearing materials, either
  natural gas or liquids or solids, into synthetic liquid hydrocarbons
  (gas-to-liquids or GTL Technology).  The products include
  clean-burning diesel fuel, naphthas used for making gasoline and certain
  petrochemicals, and specialty products such as petroleum waxes,
  petrochemical feedstocks and synthetic lubricant base oils.

       Trades of our common stock are reported on the American Stock
  Exchange under the symbol RTK.

       The common stock is offered for sale by the selling shareholders
  identified in this prospectus.


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

                YOU SHOULD CAREFULLY CONSIDER THE RISK FACTORS
       BEGINNING ON PAGE 13 BEFORE  MAKING AN INVESTMENT IN OUR COMPANY

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

       Neither the Securities and Exchange Commission nor any state
  securities commission has approved our common stock or determined that
  this prospectus is accurate or complete.  Any representation to he
  contrary is a criminal offense.







                  ____________________, 2000





  <PAGE>
                                                      PAGE 4


                              TABLE OF CONTENTS
                                                                    Page
                                                                    ----
  About this Prospectus . . . . . . . . . . . . . . . . . . . . . .    4
  Where You Can Find More Information . . . . . . . . . . . . . . .    5
  Note of Caution Regarding Forward-Looking Statements  . . . . . .    6
  Description of the Company  . . . . . . . . . . . . . . . . . . .    7
     --The Company  . . . . . . . . . . . . . . . . . . . . . . . .    7
     --The Rentech GTL Technology . . . . . . . . . . . . . . . . .    8
     --Business Strategy  . . . . . . . . . . . . . . . . . . . . .    8
     --New Developments . . . . . . . . . . . . . . . . . . . . . .   11
     --Other Businesses . . . . . . . . . . . . . . . . . . . . . .   11
          ----OKON, Inc . . . . . . . . . . . . . . . . . . . . . .   11
          ----Petroleum Mud Logging, Inc.   . . . . . . . . . . . .   11
          ----ITN Energy Systems, Inc.  . . . . . . . . . . . . . .   12
          ----Global Solar Energy LLC   . . . . . . . . . . . . . .   12
          ----ITN Electronic Substrates LLC . . . . . . . . . . . .   13
     --Executive Officers . . . . . . . . . . . . . . . . . . . . .   13
  Risk Factors  . . . . . . . . . . . . . . . . . . . . . . . . . .   13
  Use of Proceeds . . . . . . . . . . . . . . . . . . . . . . . . .   21
  Selling Shareholders  . . . . . . . . . . . . . . . . . . . . . .   22
  Plan of Distribution  . . . . . . . . . . . . . . . . . . . . . .   24
  Description of Common Stock and Preferred Stock . . . . . . . . .   25
  Legal Opinion . . . . . . . . . . . . . . . . . . . . . . . . . .   27
  Experts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   27




                            ABOUT THIS PROSPECTUS

       This prospectus may be used by our shareholders identified under the
  heading "SELLING SHAREHOLDERS" with their sale of shares of common stock
  which they own or acquire from us by the exercise of stock options or
  stock warrants.  The Selling Shareholders or their transferees may also
  sell their shares of common stock by complying with Rule 144 or Rule 144A
  adopted by the Securities and Exchange Commission (SEC) under the
  Securities Act of 1933 if the requirements of those rules have been
  satisfied.

       The Selling Shareholders will receive all of the proceeds from their
  sales of common stock.  Our Company will not receive any money from sales
  made by them.

       This Prospectus provides you with a general description of our
  Company and of our common stock.  You should carefully read this
  prospectus and the documents referred to in this prospectus under the
  heading "WHERE YOU CAN FIND MORE INFORMATION."



  <PAGE>
                                                      PAGE 5

       You should rely only on the information provided in this prospectus
  or incorporated into this prospectus by reference.  We have not
  authorized anyone to provide you with different information.  You should
  not assume that the information in this prospectus is accurate after the
  date of this prospectus.


                     WHERE YOU CAN FIND MORE INFORMATION

       We have filed a registration statement with the SEC relating to
  sales by the Selling Shareholders of their shares of common stock.  This
  prospectus is part of that registration statement, but the registration
  statement also contains additional information and exhibits.  We also
  file proxy statements, annual, quarterly and special reports and other
  information with the SEC.  You may read and copy (upon the payment of
  fees charges by the SEC) any document that we file with the SEC at its
  public reference rooms in Washington, D.C. (450 Fifth Street, N.W.,
  Washington, D.C. 20549), New York, New York (7 World Trade Center, Suite
  300, New York, New York 10048), and Chicago (500 West Madison Street,
  Suite 1400, Chicago, Illinois 60661).  You may call the SEC at 1 (800)
  SEC-0330 for further information about the public reference rooms.  Our
  filings are also available at the SEC's website at http://www.sec.gov.
  Our Internet address is http://www.rentechinc.com.

       The SEC allows us to incorporate documents in this prospectus by
  reference.  This means that we can disclose important business, financial
  and other information in our SEC filings by referring you to the
  documents containing such information.  All information incorporated by
  reference is part of this prospectus until it is updated by future
  filings with the SEC.  Those future filings are considered to
  automatically update this prospectus.

       We incorporate by reference into this prospectus the documents
  listed in the following table:

  <TABLE>
  <CAPTION>
  Our SEC Filings                      Period
  ---------------                      ------
  <S>                                  <C>
  Annual Report on Form 10-KSB         Year ended September 30, 1999
  Quarterly Report on Form 10-QSB      Quarter ended December 31, 1999
                                       Quarter ended March 31, 2000
  Current Reports on Form 8-K          Dated:
                                          October 12, 1999
                                          November 16, 1999
                                          November 24, 1999
                                          February 22, 2000
                                          March 20, 2000 (two reports)
                                          April 4, 2000
  </TABLE>

  <PAGE>
                                                      PAGE 6

       We also incorporate by reference additional documents that we may
  file between the date of this prospectus and the termination of the
  offering made by use of this prospectus.  These documents include
  periodic reports such as Annual Reports on Forms 10-KSB, Quarterly
  Reports on Forms 10-QSB, Current Reports on Form 8-K, and other reports
  filed with the SEC, as well as proxy statements.

       You can obtain any of the documents incorporated by reference in
  this prospectus from us, other than exhibits to those documents unless
  the exhibit is specifically incorporated by reference into this
  prospectus as an exhibit.  You can obtain documents incorporated by
  reference in this prospectus by requesting them in writing or by
  telephone from us at the following address and telephone number:

                              Investor Relations
                                RENTECH, INC.
                         1331 17th Street, Suite 720
                            Denver, Colorado 80202
                                (303) 298-8008

       To ensure timely receipt of documents that you request, you should
  make any request to us at least five business days prior to the date you
  need them.  We will mail materials to you by first class mail, or another
  equally prompt means, within one business day after we receive your
  request.


            NOTE OF CAUTION REGARDING FORWARD-LOOKING STATEMENTS

       This prospectus, including information incorporated by reference in
  it, contains forward looking statements, within the meaning of federal
  securities laws, about the financial condition, results of operations,
  plans, objectives, future performance and business of Rentech and its
  subsidiaries.  Forward-looking statements are based on our management's
  beliefs, assumptions and expectations of our Company's future economic
  performance, taking into account the information currently available to
  them.  Forward-looking statements are not statements of historical fact.
  Forward-looking statements involve risks and uncertainties that may cause
  our Company's actual results, performance or financial condition to be
  materially different from the expectations we express or imply in any
  forward-looking statements.  These statements often can be identified by
  use of the words "may," "will," "expects," "believes," "anticipates,"
  "estimates," "projects," "potential," "approximate," or "continue."  Some
  of the important factors and events that could cause our actual results,
  performance or financial condition to differ materially from our
  expectations include:





  <PAGE>
                                                      PAGE 7

       --Results of use of our GTL Technology after scaling it up for use
         in commercial size gas conversion plants;

       --Acceptance by the energy industry of our GTL Technology;

       --Availability of large amounts of capital to us or our joint
         venturers or licensees to construct and operate plants using GTL
         Technology;

       --Economic competitiveness of our GTL Technology with other means of
         producing synthetic liquid hydrocarbons and other fuels;

       --Economic competitiveness of our GTL Technology with other fuels
         and products similar to ours; and

       --Other risks described in our other filings with the SEC.


                         DESCRIPTION OF THE COMPANY

  THE COMPANY

       Rentech, Inc. is a Colorado corporation organized in 1981 and based
  in Denver.  It is engaged in the development, marketing and licensing of
  its patented and proprietary technology that converts natural gas and
  solid and liquid carbon-bearing materials into fuels, products and
  chemicals.  The Company's gas-to-liquids technology (the Rentech GTL
  Technology) is capable of using as feedstock a variety of naturally
  occurring hydrocarbons as well as gaseous, liquid and solid hydrocarbons
  produced as by-products or waste in various industrial processes.
  Feedstocks include high BTU, low sulfur natural gas (so-called sweet
  natural gas); lower BTU natural gas; natural gas containing higher than
  normal concentrations of carbon dioxide, nitrogen or sulfur; industrial
  waste gas; heavy crude oil; refinery by-products; coal; coal fines and
  petroleum coke.  Principal products produced by use of Rentech's GTL
  Technology (GTL products) include clean diesel fuel (ecodiesel), naphtha
  (an intermediate product used to make gasoline and certain
  petrochemicals) and waxes that can be further processed into
  high-value specialty products.  These specialty products include
  synthetic lubricants, base oils and drilling fluids.

       Rentech charges license fees and engineering design fees for use of
  its GTL Technology.  It also expects to charge royalties based upon the
  liquid hydrocarbons produced through use of the Rentech GTL Technology.

       Rentech also owns interests in other businesses subsequently
  described in this prospectus.




  <PAGE>
                                                      PAGE 8

  THE RENTECH GTL TECHNOLOGY

       The Company believes that the Rentech GTL Technology represents a
  technological development that could provide benefits to the oil and gas
  industry, other energy businesses and the environment.  The potential
  advantages of the Rentech GTL Technology include:

  -- Improving refinery economics through more efficient use of heavy and
     sour crude oil and refinery residues.

  -- Enhancing the value of uneconomic methanol plants or other industrial
     plants with costly gas reforming systems in place that can be
     retrofitted to make synthesis gas for the production of GTL
     products.

  -- Allowing natural gas producers to economically develop and produce
     remote and substandard gas resources, thus increasing their proved
     reserves and revenues.

  -- Facilitating efficient co-production of electricity and GTL products
     from coal and other feedstocks while significantly reducing harmful
     emissions.

  -- Increasing available supplies of clean energy and transportation fuel
     to help meet the rapidly growing worldwide demand.

  -- Producing high-value, high-purity specialty products to meet
     increasingly stringent environmental standards and product
     specifications.

  -- Enhancing U.S. energy security by facilitating expanded use of
     relatively abundant coal and natural gas resources for needs
     traditionally met by increasing amounts of imported crude oil and
     fully refined products.

  -- Allowing developers of gas conversion plants using Rentech GTL
     Technology to obtain insurance covering performance of the Rentech GTL
     process.


  BUSINESS STRATEGY

       Rentech's business strategy is to achieve use of its technology in
  commercial gas-to-liquids projects and to expand its revenue and earnings
  through an integrated approach of strategic relationships, technology
  licensing and direct project participation.  Rentech's strategy is based
  upon the following key components:





  <PAGE>
                                                      PAGE 9

          --Environmental and Energy Demand Trends.  Rentech believes it
       can capitalize on several current trends that are impacting the
       energy, transportation and environmental industries to achieve
       commercial use of the Rentech GTL Technology.  These impacts include
       increasingly stringent requirements to reduce tailpipe emissions and
       strengthen clean-air standards; the contradictory need of refiners
       to cost-effectively produce cleaner fuel from increasingly poor
       quality crude oils; the regulatory curtailment of natural gas
       flaring; economic incentives to profitably develop vast, remote
        resources of natural gas; steadily increasing demand for power
       around the world; a need to utilize dirty coal for clean power
       generation; and the search for a practical fuel source for
       transportation fuel cells currently being developed.

            --Accelerating Commercialization Through Strategic
       Relationships.  While the Rentech GTL Technology is not currently
       being used in any commercial scale plant, our Company is pursuing
       rapid commercial deployment of its technology through a number of
       initiatives.  To accelerate its efforts and leverage its
       technology, Rentech has formed several strategic relationships
       with owners of complementary technologies, engineering
       capabilities, financial assets or potential projects.  These
       relationships are designed to broaden use of Rentech's
       technology and to accelerate deployment of commercial facilities
       that use Rentech's GTL Technology.

            --In October 1998, Rentech granted an exclusive technology
       license to Texaco Natural Gas, Inc. (now Texaco Energy Systems, a
       division of Texaco, Inc.) to use and sublicense the Rentech GTL
       Technology in projects where solid and liquid hydrocarbons are used
       as feedstock.  The license also granted Texaco a non-exclusive
       license for conversion of natural gas to liquids.  Texaco's
       "front-end" synthesis gas reformer units have been deployed in 68
       of its own and others' refineries and chemical plants around the
       world.  Under an expanded Technical Services Agreement signed in
       June 1999, Rentech and Texaco are pursuing design work to
       integrate Rentech's GTL conversion technology with Texaco's
       gasification technology in preparation for commercial deployment.

            --In May 1999, Rentech formed a strategic financial
       relationship with Republic Financial Corporation of Denver, Colorado
       to pursue joint ventures with owners of existing North American
       methanol plants to convert those plants to gas-to-liquids
       facilities.  Retrofitting an existing industrial plant with the
       Rentech GTL Technology significantly reduces the construction time
       and cost compared to building a greenfield GTL plant.  Rentech
       believes modification of these existing plants would enhance their
       economics with feedstocks including marketable, pipeline-quality
       natural gas.

  <PAGE>
                                                      PAGE 10

            --In August 1999, Rentech agreed by a letter of intent to grant
       Dresser Engineering Company, of Tulsa, Oklahoma, a license by which
       Dresser will market Rentech's GTL Technology for projects that
       Dresser develops.  Dresser will have the exclusive right, except for
       Texaco's rights and Donyi Polo Petrochemicals' rights in the country
       of India, to provide the engineering services and to design the
       synthesis gas reactors that are necessary to use Rentech's
       technology.  Dresser's participation in marketing and developing
       projects is expected to substantially contribute to commercial use
       of Rentech's technology.

            --In January 2000, Rentech and Republic Financial Corporation
       purchased a methanol plant known as the Sand Creek facility,
       together with all the supporting infrastructure, buildings, and the
       underlying 17-acre site.  Rentech and Republic Financial are
       developing a plan to convert the facility to a gas-to-liquids (GTL)
       plant for production of liquid hydrocarbons such as diesel, naphtha,
       petroleum waxes and other products.  The new owner of the facility
       is Sand Creek Energy LLC, which is 50 percent owned by Rentech
       Development Corp., a newly formed, wholly-owned subsidiary of
       Rentech, and 50 percent owned by RFC-Sand Creek Development, LLC, a
       wholly-owned subsidiary of Republic Financial.

            --In March 2000 Rentech granted Texaco Energy Systems, Inc. the
       exclusive right to negotiate for Texaco's participation in the
       project to retrofit the Sand Creek plant for the planned purpose.
       Texaco has the right to evaluate and potentially acquire up to
       one-half of Rentech's 50% interest in Sand Creek Energy LLC.

            --In March 2000 Rentech agreed in a memorandum of understanding
       with FuelCell Energy, Inc. of Danbury, Connecticut to study the
       feasibility for locating a commercial scale fuel cell power plant at
       the site of the Sand Creek facility, to produce up to 9,000
       kilowatts of electricity.  The goal is to operate both Rentech's GTL
       Technology and FuelCell's fuel cell technology at the site.  The
       Companies are evaluating use of Rentech's GTL products as
       feedstock for the fuel cells.

            --In January 2000 Rentech and Jacobs Engineering U.K. Limited
       agreed to jointly market their combined capabilities on a worldwide
       basis.  Jacobs Engineering is a large international engineering firm
       that expects to provide engineering services to plants for projects
       it organizes for the use of Rentech's GTL Technology.  Rentech would
       sell licenses and also provide its design and other engineering
       services for each plant.

            --Rentech also has R&D relationships with Thermal Conversion
       Corporation (TCC) of Kent, Washington and Phoenix Gas Systems of
       Long Beach, California.  The focus of each of these separate




  <PAGE>
                                                      PAGE 11

       collaborations is to develop smaller, more efficient and cheaper
       front-end synthesis gas units for deployment on platforms in
       offshore oil and gas fields, on barges for inland waterway oil and
       gas fields and skid-mounted or trailer truck-mounted plants for
       smaller onshore oil and gas fields.

  NEW DEVELOPMENTS

       On March 18, 2000, Rentech sold 1,000,000 shares of its common stock
  to Anschutz Investment Company and 1,000,000 additional shares to Forest
  Oil Corporation at a price of $.60 per share.  In addition, Anschutz
  Investment and Forest Oil separately purchased options to acquire an
  additional 3,000,000 shares each, 2,000,000 shares at $1.25 exercisable
  until December 31, 2001, and 1,000,000 shares at $5.00 exercisable until
  December 31, 2004.

       Rentech and Forest Oil also signed a memorandum of understanding
  that entitles Forest Oil to obtain one or more licenses from Rentech to
  use Rentech's GTL technology.  Rentech and Forest Oil are evaluating
  several potential opportunities for use of the technology at sites of
  Forest Oil's natural gas reserves as well as at existing industrial gas
  plants.

       On March 29, 2000, Rentech sold 2,291,667 shares of its common stock
  to Azure Energy Fund with warrants to purchase 2,291,667 more shares of
  common stock.  The sales price was $2,750,000.  The warrants are
  exercisable at a price of $2.64 per share until March 29, 2003.


  OTHER BUSINESSES

  OKON, INC.

       In March 1997, Rentech entered into the business of manufacturing
  and marketing water-based wood stains, concrete stains, block pluggers
  and other water repellent sealers on a wholesale basis by purchasing the
  assets of OKON, Inc. (OKON), located in Lakewood, Colorado.  The coatings
  produced and sold by the OKON subsidiary are biodegradable and
  environmentally clean.

       OKON has been engaged in the business since 1973.  OKON markets and
  sells its products nationwide through a variety of channels.  These
  include distribution through paint dealers, retailers other than discount
  retailers and mass merchandisers, industry users, and architects and
  building contractors.  The formulas used by OKON for manufacturing its
  products are proprietary.  The brand names of the various products are
  recognized throughout the industry.




  <PAGE>
                                                      PAGE 12

  PETROLEUM MUD LOGGING, INC.

       In June 1999, Rentech entered into the business of providing well
  logging services to the oil and gas industry.  This occurred through its
  purchase of the assets of two established and related companies that have
  been providing services in these fields since 1964.  Rentech is using the
  assets to continue these businesses through its wholly-owned subsidiary,
  Petroleum Mud Logging, Inc.  The business is operated from Oklahoma City,
  Oklahoma.  The services are provided to customers located in Oklahoma,
  Texas, Kansas, Louisiana and Arkansas.

       Petroleum Mud Logging, Inc. owns 18 mobile well logging units that
  are moved from well to well.  Through state of the art instruments, the
  logging equipment measures traces of gases and water throughout the depth
  of a well hole by analyzing the drilling mud recovered from the well as
  drilling progresses.  The results are transmitted to customers
  immediately by either land lines or satellite uplink.  The mineral owners
  use this information to detect the presence of oil and gas deposits in
  underground formations.


  ITN ENERGY SYSTEMS, INC.

       Rentech owns 10% of ITN Energy Systems, Inc. (ITN/ES), a privately
  owned Colorado corporation established in 1995.  The core technologies of
  ITN/ES include a thin film multi-layer deposition process; intelligent
  processing; structures and materials; and photovoltaic power system
  design, integration, and installation.  ITN/ES intends to develop and
  commercialize new, innovative products for defense and commercial markets
  based on advanced materials and structures technologies.

       The current customers of ITN/ES are the U.S. Air Force Research
  Laboratory, Defense Advanced Research Projects Agency, the National
  Aeronautical Space Administration (NASA), and the U.S. Department of
  Energy.


  GLOBAL SOLAR ENERGY LLC

       ITN/ES owns one-third of an Arizona limited liability company called
  Global Solar Energy LLC (Global Solar Energy).  Global Solar Energy,
  established in May 1996 by Tucson Electric Power and ITN/ES, manufactures
  and markets flexible photovoltaic (PV) modules using technology developed
  by ITN/ES.  The other two-thirds owner of Global Solar Energy is Advanced
  Energy Technologies, Inc., a wholly owned subsidiary of Tucson Electric
  Power Corporation, which is a wholly-owned subsidiary of UniSource Energy
  Corporation.





  <PAGE>
                                                      PAGE 13

       The PV modules are used for the production of electricity.  Global
  Solar Energy utilizes innovative solar technology developed by ITN/ES to
  produce Copper Indium Diselenide (CIS), a new class of solar cell
  materials in a state-of-the-art facility in Tucson, Arizona.  The
  facility started production in the third quarter of 1999, and is designed
  to annually produce up to 1.5 megawatts of thin-film photovoltaic modules
  that are 1/20th the thickness of a piece of paper.  The flexible
  photovoltaic modules are to be sold for military, space, consumer, and
  commercial applications.  The plant's production capacity is expected to
  be expanded substantially to meet increasing demands for an
  environmentally safe energy source.  The joint venture expects that the
  innovative manufacturing technology used in the new plant can reduce
  production costs of PV modules below that of other existing solar energy
  technologies.  Rentech's ownership interest in ITN/ES provides Rentech an
  indirect interest amounting to 5% of Global Solar Energy although the
  interest of the owners will be reduced proportionately by any equity
  interest granted to a lender of funds used to expand the Tucson plant.


  ITN ELECTRONIC SUBSTRATES LLC

       In order to facilitate and participate in ITN/ES's development of
  other technologies, Rentech and ITN/ES have formed and each own 50% of a
  Colorado limited liability company called ITN Electronic Substrates LLC.
  The LLC intends to develop and introduce several technologies into the
  commercial marketplace that are spinoffs from other developments
  originally conceived by the principals of ITN/ES within the aerospace and
  military sector.  The LLC is seeking a large investment from a third
  party to fund its various advanced technologies, none of which have been
  fully developed and readied for production.  ITN Electronic Substrates
  LLC also has technology for production of Radio Frequency Identification
  Tags.  The RFID tags would be used to identify and locate a wide variety
  of objects in which the tags are embedded.


  EXECUTIVE OFFICES

       Our executive offices are located at 1331 17th Street, Suite 720,
  Denver, Colorado 80202, telephone (303) 298-8008, fax (303) 298-8010.


                                 RISK FACTORS

       --Lack of Profitable Operations: History of Losses.  From inception
  on December 18, 1981, through March 31, 2000, the Company has sustained
  losses aggregating $16,432,045.  For the six months and three months
  ended March 31, 2000, the net losses were $1,731,119, and $1,056,214,
  respectively.  There are no assurances that the Company will operate


  <PAGE>
                                                      PAGE 14


  profitably in the future or will be able to acquire additional revenue
  producing businesses, or that the Company's licensees will complete
  construction of plants using Rentech's GTL Technology, or that any
  conversion plants using the Rentech GTL Technology that are completed
  will be operated profitably or generate engineering design fees, license
  fees, royalties or product revenues for the Company.

       --Successful Operation of Plants Using Rentech GTL Technology Not
  Assured.  The successful use of Rentech GTL Technology by licensees
  largely depends upon their ability to design, construct and operate
  plants using the Rentech GTL Technology on a commercial scale.  The
  successful commercial use of plants using Rentech GTL Technology will be
  dependent upon a number of factors.  These factors include, among others,
  the following responsibilities of a licensee:  constructing plants that
  are properly designed by a licensee for the chemical composition of the
  feedstock obtained for the plant; the amount and quantity of the
  feedstock; the availability and cost of construction financing;
  mechanical adequacy of the plant equipment and machinery, whether related
  or unrelated to the Rentech GTL Technology; costs no higher than expected
  to separate the catalyst from waxes produced in the gas conversion
  process; availability and adequacy of roads, utilities, worker housing
  and other infrastructure at the plant site; the plant operator's
  management and skills; operating circumstances; and other conditions that
  Rentech may not anticipate or control.

       --Economic Use of Rentech GTL Technology Not Assured.  Rentech's
  belief that its technology can be cost effective and that
  full-scale conversion plants using the technology can be profitably
  operated depends upon the availability of low-cost feedstock, the
  economic efficiency of the technology and market demand for the end
  products at profitable prices.  In the event low-cost feedstock cannot be
  obtained, plants using Rentech's GTL Technology may not produce products
  for sale at competitive prices.  The products of Rentech's GTL Technology
  will compete with other petroleum products, including products produced
  by similar technology.  To a great extent, competition in this business
  will be based upon price, although compliance with environmental laws may
  create demand for the Company's low aromatic, sulphur-free diesel fuel
  even at premium prices.  The diesel fuel produced by Rentech's GTL
  Technology has not been subjected to long-term engine tests to determine
  if there are adverse effects.  No in-depth cost or price studies of the
  products of Rentech's GTL Technology have been prepared by independent
  third parties for the Company.  Adverse economic results at plants using
  Rentech's GTL Technology would adversely impact Rentech's operating
  results and financial condition by depressing its potential income from
  the technology.






  <PAGE>
                                                      PAGE 15

       --Lack of Adequate Capital to Exploit Rentech GTL Technology.  In
  situations where Texaco is not using or licensing Rentech's GTL
  Technology, the capital cost of gas conversion plants and natural gas
  fields or other sources of feedstock that use Rentech's GTL Technology
  requires more capital than is available to the Company or to many of its
  potential licensees.  While the Company does not presently plan to build
  its own plants, except to convert existing industrial gas plants, and
  expects its licensees to acquire feedstock and build and own plants for
  which they are licensed by the Company, many potential licensees of
  Rentech's GTL Technology have been unable to finance the construction
  costs and acquire feedstock.  These limitations have slowed and will
  continue to delay use of Rentech's GTL Technology and resulting revenues
  to the Company.  There are no assurances that joint arrangements with
  other better capitalized companies will be available or acceptable to the
  Company or that Texaco will commercially use the technology.

       --Working Capital.  At March 31, 2000, the Company had working
  capital of $4,283,108 as compar ed to working capital of $115,457 at
  September 30, 1999.  The increase in working capital is primarily due to
  the net proceeds from the issuance of the Company's preferred stock and
  common stock and related warrants to purchase common stock.  The net cash
  proceeds received from Rentech's recent private placements of its
  securities, the revenues generated from the Company's subsidiary
  operations, the revenues generated from the Texaco technical service
  contract and the Texaco royalty fees are expected to be adequate to fund
  the Company's operations at the current level for the near future.

       --Need for Additional Financing.  To raise capital, Rentech has
  recently issued shares of its common stock, and options and warrants to
  purchase additional shares of common stock.  See the previous section
  called New Developments.  Rentech has expended and will continue to
  expend substantial funds to continue to research and develop its
  technologies, especially the Rentech GTL Technology and to invest in
  gas-to-liquids projects, such as the Sand Creek project.  Rentech intends
  to seek additional debt and equity financing in the capital markets.
  There can be no assurance that additional financing, when required, will
  be available or on terms acceptable to Rentech.  If adequate funds are
  not available, Rentech may be required to delay or to eliminate
  expenditures for certain of its capital projects or to license to third
  parties the rights to commercialize additional products or technologies
  that Rentech would otherwise seek to develop itself.  In addition,
  Rentech may obtain additional funds through equity and debt project
  financing and collaborative or other arrangements with strategic partners
  and others.  If additional funds are raised by  issuing equity
  securities, further dilution to investors may occur.  The board of
  directors of Rentech is





  <PAGE>
                                                      PAGE 16

  currently empowered, without stockholder approval, to issue and has
  issued preferred stock with dividend, liquidation, conversion, voting and
  other rights that could adversely affect the voting power, equity
  ownership and other rights of the holders of Rentech's common stock.

       --Success of the Rentech GTL Technology Depends Upon Licensees.
  Rentech does not have adequate capital to finance, construct and operate
  its own commercial plants.  Successful use of the Rentech GTL Technology
  therefore depends upon licensees.  If any influential licensee such as
  Texaco terminates its license or does not proceed to use the technology,
  potential licensees are not likely to use the technology.  Rentech will
  receive royalties and other revenues from operations only from plants
  that operate successfully and economically.  Under the license agreements
  offered by Rentech, it is a licensee's responsibility to obtain sources
  of feedstock that provide adequate supplies at inexpensive rates, conduct
  feasibility studies, recruit personnel who are skilled in conversion
  plants, obtain governmental approvals and permits, obtain sufficient
  financing on favorable terms for the large capital expenditures required,
  possibly construct infrastructure if not otherwise available at the plant
  site, design, construct and operate the plant, market the products, and
  perform other significant tasks.  The ability of any licensee to
  accomplish these requirements, and the efforts, resources and timing
  schedules to be applied by a licensee, will be controlled by it.  If the
  first few commercial-size plants using the Rentech GTL Technology are not
  commercially successful, Rentech may be unable to obtain other licensees
  in the future.  Several licensees have allowed their licenses to expire
  because of their inability to meet one or more of the requirements
  previously described for a plant.  If licensees do not proceed with
  plants using the Rentech GTL Technology or do not successfully operate
  plants, Rentech's operating results and financial condition would be
  adversely affected.  In addition, one or more of Rentech's licensees may
  pursue alternative gas-to-liquids technology on their own or in
  cooperation with others, including Rentech's competitors.

       --Competitiveness of the Rentech GTL Technology Not Assured.  The
  development of gas-to-liquids technology is highly competitive.  The
  Rentech GTL Technology is based on Fischer-Tropsch processes that have
  been used by several others in synthetic fuel projects during the past 60
  years.  Historic experience has indicated that these applications of the
  established processes were not an economic means to create synthetic
  fuels.  Because of increasing worldwide demand for fuels and other
  products of the Rentech GTL Technology, as well as the large quantities
  of carbon bearing gas, liquid and solid materials available as feedstock,
  there are economic incentives to develop and achieve significant market
  penetration for successful Fischer-Tropsch technology.  Several major
  integrated oil companies, including Exxon Corporation, Royal Dutch/Shell
  and Sasol Ltd., as well as several smaller companies, have developed or
  are developing competing technologies.  Each of these companies,





  <PAGE>
                                                      PAGE 17

  especially the major oil companies, have significantly more financial and
  other resources than Rentech to spend on developing, promoting and using
  their technology.  The U.S. Department of Energy has also sponsored a
  number of research programs in Fischer-Tropsch technology, some of which
  might potentially lower the cost of processes that compete with Rentech's
  GTL Technology.  There are no assurances that these companies, the
  Department of Energy, or others will not develop technologies that will
  be more commercially successful or better accepted in the industry than
  Rentech's GTL Technology or that will render it obsolete.

       --No Assurance of Industry Acceptance of Technology.  As is typical
  in the case of new and rapidly evolving technologies, including Rentech's
  GTL Technology and the advanced technologies in which Rentech has an
  interest, demand and industry acceptance is subject to a high level of
  uncertainty.  If Texaco or another licensee uses Rentech's GTL Technology
  and fails to achieve success, other industry participants' perception of
  Rentech's GTL Technology could be adversely affected.  If the industry
  fails to accept any of these technologies, especially Rentech's GTL
  Technology, whether due to their novelty and continuous evolution, or for
  other reasons, or acceptance develops more slowly than expected,
  Rentech's business, operating results and financial condition will be
  materially adversely affected.  Any such event could reduce future
  license fees or revenues from conversion plants, and could make it more
  difficult or impossible for Rentech to successfully market its
  technology.  Likewise, were a major oil and gas company to either
  successfully develop or adopt a Fischer-Tropsch technology competing with
  the Rentech GTL Technology, the marketability of Rentech's GTL Technology
  could be adversely affected.  In addition, some companies may be
  motivated to seek to prevent industry acceptance of gas-to-liquids
  technology based on their belief that widespread adoption of such
  technology might negatively impact the competitive position of their
  companies without access to such technologies.  Failure of Rentech's GTL
  Technology to achieve industry acceptance could have a material adverse
  effect on Rentech's business, operating results and financial condition.

       --Operating Hazards of Fischer-Tropsch Plants.  While the risks
  related to use of Rentech's GTL Technology in conversion plants are low,
  some plants may require oxygen producing systems to convert the feedstock
  into synthesis gas, the first step for use of Rentech's GTL Technology.
  The oxygen producing systems, if required, will involve risk of
  accidents.  Personal injuries and property damage may result.  The
  frequency and seriousness of accidents, injuries and damages will impact
  the marketability of Rentech's GTL Technology, its licensees' operating
  costs and insurability, and market acceptance of Rentech's GTL
  Technology.  Significant frequency or severity of such accidents could
  have a material adverse effect on Rentech's business, operating results
  and financial condition.




  <PAGE>
                                                      PAGE 18

       --Dependence Upon Key Personnel.  Rentech's success with its
  technology and in implementing its business plan to develop advanced
  technology businesses are both substantially dependent upon the
  contributions of its executive officers and key employees.  The
  individuals include Dr. Charles B. Benham, Dr. Mark S. Bohn, and Dennis
  L. Yakobson, each of whom have jointly and individually invented various
  aspects of Rentech's GTL Technology.  At this stage of the Company's
  development, economic success of Rentech's GTL Technology depends upon
  design of conversion plants and their startup to achieve optimal plant
  operations.  That effort and establishment of the Company's advanced
  technology businesses both require knowledge, skills, and relationships
  unique to the Company's key personnel.  Moreover, to successfully compete
  with its GTL Technology and advanced technologies, the Company will be
  required to engage in continuous research and development regarding
  processes, products, markets and costs.  Loss of the services of the
  executive officers or other key employees could have a material adverse
  effect on Rentech's business, operating results and financial condition.
  Rentech does not have key man life insurance.

       --New Business Risks Associated With Entry into Advanced Technology
  Business.  The likelihood of success of Rentech's entry into new
  businesses involving advanced technologies must be considered in view of
  the problems, expenses, difficulties, complications and delays frequently
  encountered with starting up a new business.  Those factors
  include the development of new technology and the marketing of new
  products.  The Company has no history of operations in these lines of
  business upon which to evaluate its prospects for future operating or
  financial success.  Accordingly, success in these businesses is not
  assured.

       --Risk of Technological and Regulatory Change and Requirement for
  New Products.  The market for advanced technology products is
  characterized by rapidly changing technology, new legislation and
  regulations, and evolving industry standards.  The introduction of
  products embodying new technology, the adoption of new legislation or
  regulations, or the emergence of new industry standards could render the
  Company's products and future products, if any, obsolete and
  unmarketable.  The success and growth of the Company will depend, in
  part, upon its ability to anticipate changes in technology, market needs,
  law, regulations, and industry standards; to continue to attract, retain
  and motivate qualified personnel; and to successfully develop and
  introduce new and enhanced products on a timely basis.  The Company will
  need to devote a substantial amount of its efforts and capital to
  research and development as well as to sales and marketing.  While
  Rentech now has adequate facilities and personnel for its continuing
  research and development work, there are no assurances that Rentech will
  be successful in addressing such risks.





  <PAGE>
                                                      PAGE 19

       --Limitations on Protection of Intellectual Property.  Rentech
  relies on a combination of patent, trade secret, copyright and trademark
  law, nondisclosure agreements and technical security measures to protect
  its intellectual property rights in its various lines of business.  The
  success of Rentech may depend on its ability to establish, protect and
  enforce intellectual property rights with respect to its patented
  technologies and proprietary rights and to successfully defend against
  any alleged infringement or related claims.  Rentech's ability to protect
  and enforce its intellectual property position involves complex legal,
  scientific and factual questions and uncertainties, the successful
  outcome of which is not assured.

       --Foreign Operations.  Rentech expects that licensees of its GTL
  Technology will construct plants in foreign countries where the
  licensee's conduct and profitability of operations are at risk.  The
  additional risks include rapid changes in political and economic
  climates; changes in foreign and domestic taxation; lack of stable
  systems of law; susceptibility to loss of protection of patent rights and
  other intellectual property rights; expatriation laws adversely affecting
  removal of funds; fluctuations of currency exchange rates; contract
  rights; labor disputes; civil disturbances; war and other disruptions
  affecting operations.  International operations and investments may also
  be negatively affected by laws and policies of the United States
  affecting foreign trade, investment and taxation.  Any of these events
  could adversely impact Rentech's licensees and thereby adversely affect
  Rentech's operating results and financial condition.

       --No Expectation of Dividends on Common Stock.  No dividends have
  been paid on Rentech's common stock since inception.  Rentech currently
  intends to retain any earnings for the future operation and development
  of its business and does not anticipate paying dividends in the
  foreseeable future.  Any future dividends may be restricted by the terms
  of outstanding preferred stock and other financing arrangements then in
  effect.

       --Potential Reverse Stock Split.  By vote of shareholders at their
  1999 annual meeting, the board of directors was authorized until June 16,
  2000 to effect, in its discretion, a reverse stock split of the
  outstanding shares of Rentech's common stock on the basis of one share
  for each five shares outstanding at the time of the potential reverse
  stock split.  If the board of directors considers the reverse stock split
  to be desirable for shareholders and implements it, any increase in the
  market price of the common stock resulting from the reverse stock split
  may be proportionately less than the decrease in the number of shares
  outstanding.

       --Limited Trading Market.  Rentech's common stock is traded on the
  American Stock Exchange.  There are no assurances that the market for the




  <PAGE>
                                                      PAGE 20

  common stock will be sustained or provide liquidity for investors who
  wish to sell, or that investors will be able to sell their common stock
  at any price.  Future trading prices of the common stock will depend upon
  many factors including, among others, prevailing market conditions and
  Rentech's operating results.

       --Fluctuations in Quarterly and Annual Results.  Rentech has in the
  past, and expects in the future, to experience significant fluctuations
  in quarterly and annual operating results caused by the unpredictability
  of many factors.  These variations may include differences in actual
  results of operations from results expected by financial analysts and
  investors, the demand for licenses of Rentech's GTL Technology, timing of
  construction and completion of plants by licensees, success in operating
  plants, receipt of license fees and engineering fees and royalties,
  improvements or enhancements of gas-to-liquids technology by Rentech and
  its competitors, changes in oil and gas market prices, the impact of
  competition by other technologies and energy sources, and general
  economic conditions.  Rentech believes that period-to-period comparisons
  of its results of operations may not necessarily be meaningful and should
  not be relied upon as indications of future performance.  Some or all of
  these factors may cause Rentech's operating results in future fiscal
  quarters or years to be below the expectations of public market analysts
  and investors.  In such event, the price of Rentech's common stock is
  likely to be materially adversely affected.

       --Deterrence of Tender Offers by Fair Price Provisions.  Rentech's
  Articles of Incorporation include provisions that may make it more
  difficult for a third party to acquire the Company.  These provisions
  include grouping of the board of directors into three classes with
  staggered terms; a requirement that directors may be removed without
  cause only with the approval of the holders of 66-2/3% of the outstanding
  voting power of the capital stock of the Company; and a requirement that
  the holders of not less than 66-2/3% of the voting power of the
  outstanding capital stock of the Company approve certain business
  combinations of the Company with any holder of more than 10% of such
  voting power or an affiliate of any such holder unless the transaction is
  either approved by at least a majority of the uninterested and
  unaffiliated members of the board of directors or unless certain minimum
  price and procedural requirements are met.  Rentech also has a
  shareholder rights plan that authorizes issuance to existing shareholders
  of substantial numbers of preferred share rights or shares of common
  stock in the event a third party seeks to acquire control of a
  substantial block of the Company's common stock.  These provisions could
  deter a third party from tendering for the purchase of some or all of
  Rentech's outstanding securities and could have the effect of entrenching
  management.




  <PAGE>
                                                      PAGE 21

       --Year 2000.  Rentech is faced with the Year 2000 Issue, which is
  the result of computer programs that are written using two digits rather
  than four to define the applicable year.  Any computer programs that
  affect Rentech's activities, including those of its subsidiaries, and
  that have date-sensitive software, may recognize a date using "00" as the
  year 1900, rather than the year 2000.  This could result in a system
  failure or miscalculations causing disruptions of operations that depend
  upon such date-sensitive software or computer hardware.  The potential
  problems include, among others, a temporary inability to process
  transactions, send invoices, transfer funds, or engage in similar normal
  business activities.  The problems caused by the Year 2000 Issue may be
  exacerbated and cause widespread business disruption because of the
  interdependence of computer and telecommunications systems in the United
  States and throughout the world.  Rentech will continue to assess the
  compliance of its major customers, suppliers and vendors.  Management
  believes that third-party relationships upon which Rentech relies
  represent the greatest risk with respect to the Year 2000 issue, because
  Rentech cannot guarantee that third parties will be able to adequately
  assess and address their Year 2000 compliance issues in a timely manner.
  As a consequence, Rentech can give no assurances that issues related to
  Year 2000 will not have a material adverse effect on future results of
  operations or financial condition.  Since the beginning of 2000, Rentech
  did not have any interruptions of its business due to the Year 2000
  issue.  During the next few months, Rentech will continue to monitor its
  operations and assess whether the Year 2000 Issue has an impact on
  Rentech.


                             USE OF PROCEEDS

       The common stock is being offered for the account of Selling
  Shareholders, and the Company will not receive any proceeds from the
  sale of common stock by them.

       We expect to apply the net proceeds we have already received from
  the sale of the common stock, stock options and stock purchase warrants
  in the amount of $5,757,000, as shown in the following table.














  <PAGE>
                                                      PAGE 22

  <TABLE>
  <CAPTION>


                                                 Use of
            Purpose                              Net Proceeds
            -------                              ------------
            <S>                                  <C>
            Further Development of Rentech's
              GTL Technology                     $2,257,000
            Investment in Projects to Use
              Rentech's GTL Technology            1,000,000
            Working Capital                       2,500,000
                                                 ----------
                 Total:                          $5,757,000
            </TABLE>

       The foregoing information as to the use of the net offering
  proceeds represents our best estimate based upon current conditions as to
  how the net proceeds would be used.  We expect to apply the proceeds in
  the order in which they appear in the table.  We reserve the right to
  revise the application of the net proceeds. Any amounts not used for
  these purposes will be used for working capital and general corporate
  purposes.


                             SELLING SHAREHOLDERS

       This prospectus may be used by the Selling Shareholders identified
  in this section who may be entitled to reoffer and resale of our common
  stock under circumstances requiring the use of a prospectus.  No person
  will be authorized to use this prospectus for an offer of common stock
  unless we agree.

       The Selling Shareholders have purchased common stock from us.  They
  may also have acquired from us either stock options or stock purchase
  warrants which may be exercised to purchase from us additional shares of
  our common stock.  Some of the Selling Shareholders may be subject to
  agreements with us that prohibit immediate sales of their common stock.

       The common stock and options and warrants to purchase common stock
  were issued by the Company in transactions that the Company reasonably
  believes to be exempt from the registration requirements of the
  Securities Act of 1933, as amended, to persons reasonably believed by the
  Company to be "accredited investors" (as defined in Rule 501(a) of the
  Securities Act of 1933, as amended).  The common stock owned by the
  Selling Shareholders and some of the shares of common stock underlying
  their stock options and warrants are being offered by the Selling
  Shareholders identified in the following table.


  <PAGE>

                                                      PAGE 23
  <TABLE>


  <CAPTION>
                                                                             Number of Shares
                                                                             to be Beneficially Owned
                                                               Number of     On Completion of the
Name of                            Number of Shares            Shares That   Offering
Selling                            Beneficially Owned          May Be                                 % of
Shareholder                        Record       Indirect       Offered       Record      Indirect     Class
- -----------------                  ------       --------       ----------    ------      --------     -----
<S>                                <C>          <C>            <C>           <C>         <C>         <C>
A.C.E. Invest. Ptshp.                 61,250      183,750(1)      245,000             0           0      0
Anschutz Investment Company          938,750    2,863,250(2)    3,802,000             0           0      0
Azure Energy Fund Inc.             1,758,337    1,958,337(3)    1,858,337(4)    879,169     979,169   3.05%
Bill Bromley                          60,690       15,172(5)       20,229        40,441      15,172      *
C. David Callaham                  1,927,360      440,003(5)      586,671     1,340,689     440,003   2.88%
George M. Callaham                   202,300       50,575(5)       67,433       134,867      50,575      *
Chamonix Holdings
  Enterprises Ltd.                   200,000            0         100,000       100,000           0      *
Donald Christensen                   535,000            0          60,000       475,000           0      *
Dresser Engineers &
  Constructors, Inc.               3,400,000            0       1,019,832     2,380,168           0   3.76%
Excelsior Mining Fund, Inc.           83,333       83,333(3)       83,333(4)          0      83,333      *
Forest Oil Corp.                   1,000,000    3,047,000(2)    4,047,000             0           0      0
Ernie Haire                          280,168            0         280,168             0           0      *
Hoyt L. Hudspeth                      50,000            0          50,000             0           0      0
Paul D. Jorgenson                    381,964       42,500(5)       56,666       325,298      42,500      *
Lo Family Ltd. Ptshp.                800,000      150,000(5)      266,666       533,334     150,000    1.1%
Michael Moquette                      83,333       83,333(3)       83,333(4)     41,667      41,666      *
DSN Enterprises Ltd.                  50,000      480,000(6)      300,000        50,000     180,000      *
Satish B. Parekh, TTEE
  Satish B. Parekh Ph.D.
  Living Tr UA DTD 2/3/94            221,668       41,667(5)       55,556       116,112      41,667      *
Joseph J. Peters                      50,000            0          50,000             0           0      0
Portland Fixtures Ltd. Partnership   166,667       41,667(5)       55,556       111,111      41,667      *
Ratya Energy Group, Ltd.             166,664      166,664(3)      166,664(4)     83,332      83,332      *
Ren Corporation                      400,000            0         200,000       200,000           0      *
Robert F. Schroepfer                 171,468       41,667(5)       55,556       115,912      41,667      *
Scott & Stephanie Schroepfer          83,332       20,833(5)       27,780        55,552      20,833      *
William Earl Somerville               55,000      125,000(7)       55,000             0     125,000      *
Tanglewood Intl Enterprises, Inc.    357,000       89,250(5)      119,000       238,000      89,250      *
K. Peter Thomas                       60,000       15,000(5)       20,000        40,000      15,000      *
Arthur W. Tower III                   27,000      186,000(8)      211,000         2,000           0      *
ZWL Irrrevocable Trust                83,340       20,833(5)       27,780        55,560      20,833      *
Mark S. Zimel                         60,000       15,000(5)       20,000        40,000      15,000      *
     Total:                                                    13,990,560
<FN>
*Less than 1%.
(1)  Includes options to purchase 183,750 shares: 122,500 at $1.25 per share expiring December 31, 2001, and 61,250
     at $5.00 per share expiring December 31, 2004.
(2)  Includes options to purchase 3,000,000 shares common stock: 2,000,000 at $1.25 per share expiring
     December 31, 2001, and 1,000,000 at $5.00 per share expiring December 31, 2004.
(3)  Warrants to purchase common stock at $2.64 per share expiring March 29, 2003.
(4)  Half of these shares are currently outstanding, and half underlie outstanding purchase warrants.
(5)  Warrants to purchase common stock at $1.20 per share expiring October 12, 2004.
(6)  Options to purchase common stock:  100,000 at $0.575 per share, 100,000 at
     $0.80 per share, 100,000 at $0.90 per share, and 180,000 at $1.25 per share.
(7)  Options to purchase common stock: 100,000 shares at $0.75 expiring October
     6, 2002, and 25,000 shares at $0.65 expiring July 25, 2004.
(8)  Warrants to purchase common stock at $0.75 per share with no expiration date.
</FN>
</TABLE>


  <PAGE>
                                                      PAGE 24

        To the knowledge of the Company, none of the Selling Shareholders
  nor any officers, directors or employees of a Selling Shareholder have
  held any office, position or other material relationship with the
  Company, its predecessors or affiliates during the past three years.

       Each Selling Shareholder has represented that he or it purchased the
  common stock for investment and with no present intention of distributing
  or reselling it unless registered for resale.  However, in recognition of
  the fact that holders of restricted securities may wish to be legally
  permitted to sell their common stock when they deem appropriate, we have
  filed with the SEC a registration statement, of which this prospectus
  forms a part, for use with the resale of the common stock from time to
  time in the over-the-counter market or in privately negotiated
  transactions.  We have agreed to prepare and file amendments and
  supplements to the registration statement and to use our best efforts to
  obtain effectiveness of the registration statement.  We have also agreed
  to keep the registration statement effective until all the common stock
  offered with use of this prospectus has been sold, until the common stock
  is no longer, by reason of Rule 144 or Rule 144A adopted by the SEC or
  any other rule of similar effect, required to be registered for sale by
  the Selling Shareholders, or for a period of seven years, whichever
  occurs first.

       Certain of the Selling Shareholders, their associates and affiliates
  may from time to time be customers of, engage in transactions with, or
  perform services for us or our subsidiaries in the ordinary course of
  business.


                            PLAN OF DISTRIBUTION

       The common stock offered through use of this prospectus may be sold
  from time to time directly by the Selling Shareholders to purchasers.
  Alternatively, the Selling Shareholders may from time to time offer the
  common stock to or through underwriters, broker/dealers or agents, who
  may receive compensation in the form of underwriting discounts,
  concessions or commissions from the Selling Shareholders or the
  purchasers of common stock for whom they may act as agents.  The Selling
  Shareholders and any underwriters, broker/dealers or agents that
  participate in the distribution of common stock may be deemed to be
  "underwriters" within the meaning of the Securities Act, and any profit
  on the sale of the common stock by them and any discounts, commissions,
  concessions or other compensation received by any of them may be deemed
  to be underwriting discounts and commissions under the Securities Act of
  1933.

       The common stock offered through use of this prospectus may be sold
  from time to time in one or more transactions at fixed prices, at




  <PAGE>
                                                      PAGE 25

  prevailing market prices at the time of sale, at varying prices
  determined at the time of sale, or at negotiated prices.  The sale of the
  common stock may be effected in transactions (which may involve crosses
  or block transactions) (i) on any national or international securities
  exchange or quotation services on which the common stock may be listed or
  quoted at the time of sale, (ii) in the over-the-counter market, (iii) in
  transactions otherwise than on such exchanges or in the over-the-counter
  market or (iv) through the writing of options.  At the time a particular
  offering of the common stock is made, a prospectus supplement, if
  required, will be distributed which will set forth the aggregate amount
  and type of common stock being offered and the terms of the offering,
  including the name or names of any underwriters, broker/dealers of
  agents, any discounts, commissions and other terms constituting
  compensation from the Selling Shareholders and any discounts, commissions
  or concessions allowed or reallowed or paid to broker/dealers.  Selling
  Shareholders may also sell their common stock pursuant to Rule 144 or
  Rule 144A under the Securities Act of 1933 if the requirements for the
  availability of such rules have been satisfied.

       To comply with the securities laws of certain jurisdictions, if
  applicable, the common stock will be offered or sold in such
  jurisdictions only through registered or licensed brokers or dealers.  In
  addition, in certain jurisdictions the common stock may not be offered or
  sold unless it has been registered or qualified for sale in those
  jurisdictions or an exemption from registration or qualification is
  available and satisfied.

       The Selling Shareholders will be subject to applicable provisions
  of the Securities Exchange Act of 1934 and the rules and regulations
  thereunder.  Those provisions may limit the timing of purchases and sales
  of any of the common stock by the Selling Shareholders.  These
  limitations may affect the marketability of the common stock.

       All expenses of the registration of the common stock will be paid by
  the Company.  This includes without limitation, SEC filing fees and
  expenses in compliance with state securities or "blue sky" laws; but the
  Selling Shareholders will pay all underwriting discounts and selling
  commissions, if any.  The Selling Shareholders will be indemnified by the
  Company against certain civil liabilities, including certain liabilities
  under the Securities Act of 1934, or will be entitled to contribution in
  connection therewith.


               DESCRIPTION OF COMMON STOCK AND PREFERRED STOCK

       The authorized capital stock of Rentech consists of 100,000,000
  shares of common stock, $.01 par value per share, and 1,000,000 shares of
  preferred stock, $10 par value per share.  A quorum for purposes of




  <PAGE>
                                                      PAGE 26

  meetings of common shareholders consists of a majority of the issued and
  outstanding shares of common stock.  Once a quorum is established, action
  of a routine nature may be taken by a majority of the shares represented
  in person or by proxy at the meeting.  Most major corporate transactions
  such as mergers, consolidations, sales of all or substantially all
  assets, and certain amendments to the articles of incorporation require
  approval by the holders of two-thirds of the issued and outstanding
  shares of common stock entitled to vote.  Rentech's board of directors is
  authorized to issue shares of common stock and preferred stock without
  approval of shareholders.  Shares of preferred stock may be issued in one
  or more series, the terms of which will be determined at the time of
  issuance by the board of directors without any requirement for
  shareholder approval.  These rights may include voting rights,
  preferences as to dividends, and upon liquidation, conversion and
  redemption rights, and mandatory redemption provisions pursuant to
  sinking funds or otherwise.

       The Board of Directors has authority to issue additional shares of
  common stock, warrants and options to purchase common stock, and
  preferred shares convertible into shares of common stock.  The Board of
  Directors has recently issued such securities, including warrants and
  options to purchase additional shares of common stock.  See the section
  called "New Developments."  Exercise of the warrants and options now
  issued and others that may be issued, and issuance of additional shares
  of common stock or preferred stock convertible into common stock, would
  reduce the percentage ownership held by those who purchase shares of
  Rentech's common stock in this offering.  That would also dilute the book
  value of those purchasers and others who are then shareholders.

       The Company's Articles of Incorporation contain several provisions
  that may make a takeover of the Company by a third party more difficult.
  These provisions include:  (i) classification of its Board of Directors
  into three classes as nearly equal in size as practicable, with the
  members of only one class to be elected annually for a three-year term;
  (ii) directors may be removed without cause only with the approval of the
  holders of two-thirds of the outstanding voting power of all capital
  stock of the Company;  (iii) special meetings of shareholders may be
  called only by the president, directors, or affirmative vote of 10% or
  more of the voting power of the outstanding capital stock of the Company;
  and  (iv) approval by the holders of two-thirds of the voting power of
  the outstanding capital stock of the Company is required for certain
  business combinations of the Company with any holder of more than 10% of
  such voting power or an affiliate of any such holder unless the
  transaction is either approved by at least a majority of the uninterested
  and unaffiliated members of the Company's board of directors or unless
  certain minimum price and procedural requirements are met designed to
  assure that all shareholders of the Company receive a fair price for
  their shares.



  <PAGE>
                                                      PAGE 27

       The Company also has a shareholder rights plan which authorizes
  issuance to existing shareholders of substantial numbers of preferred
  shares rights or shares of common stock in the event a third party seeks
  to acquire control of a substantial block of the Company's common stock.
  These provisions could deter an offer by a third party for the purchase
  of some or all of the Company's outstanding securities and could have the
  effect of entrenching management.  Pursuant to the shareholder rights
  plan, the Company amended its Articles of Incorporation to authorize the
  issuance of rights to 500,000 shares of Series 1998-C Participating
  Cumulative Preferred Stock.  In the event that a person acquires 15% or
  more of the common stock of the Company, the holders of common stock at
  that time have the right to receive 1/100 of a share of Series
  1998-C Participating Cumulative Preferred Stock for each shares of common
  stock owned by such person.  The holders of the preferred stock are
  entitled to dividends in the event that the Company declares a dividend
  or distribution on the common stock.  The holders of the preferred stock
  are entitled to vote on all matters submitted to a vote of the
  stockholders of the Company.

       Whenever dividends on the preferred stock are in arrears for six
  quarterly dividends, the holders of such stock (voting as a class) have
  the right to elect two directors of the Company until all cumulative
  dividends have been paid in full.

       The shares of common stock covered by this prospectus are fully paid
  and nonassessable.  Holders of common stock have no preemptive rights.
  Each stockholder is entitled to one vote for each share of common stock
  held of record by such stockholder.  Shareholders have no right to
  cumulate votes for election of directors.  Upon liquidation of Rentech,
  the assets then legally available for distribution to holders of the
  common stock will be distributed ratably among those shareholders in
  proportion to their stock holdings.  Holders of common stock are entitled
  to dividends when, as and if declared by the board of directors out of
  funds legally available for dividends.  While shares of Rentech's Series
  1998-B Preferred Stock are outstanding, no dividends may be paid on the
  common stock unless dividends on the those preferred shares have been
  paid.  No shares of common stock may be purchased or funds set aside for
  that purpose by the Company except in amounts of less than $100,000 per
  year.


                                LEGAL OPINION

       Brega & Winters, P.C., 1700 Lincoln Street, Suite 2222, Denver,
  Colorado 80203 has rendered an opinion as to the legality of the common
  stock issued to the Selling Shareholders.  A lawyer associated with Brega
  & Winters P.C. beneficially owns 283,052 shares of the Company's common
  stock.



  <PAGE>
                                                      PAGE 28

                                   EXPERTS

       The financial statements incorporated by reference in this
  Prospectus have been audited by BDO Seidman, LLP, independent
  certified public accountants, to the extent and for the periods set forth
  in their report incorporated herein by reference, and are incorporated
  herein in reliance upon such report given upon the authority of said firm
  as experts in auditing and accounting.












































  <PAGE>
                                                      PAGE 29

                        RENTECH, INC.
                      13,990,560 Shares
                         Common Stock

                 P  R  O  S  P  E  C  T  U  S
               Offered by Selling Shareholders

                    _______________, 2000


  Prospective investors may rely only on the information contained in this
  prospectus.  Neither Rentech, Inc. nor any underwriter has authorized
  anyone to provide any other information.  This prospectus isn't an offer
  to sell to---nor does it seek an offer to buy---these securities from any
  person in any jurisdiction in which it is illegal to make an offer or
  solicitation.  The information here is correct only on the date of this
  prospectus, regardless of the time of the delivery of this prospectus or
  any sale of these securities.

  No action is being taken in any jurisdiction outside the United States to
  permit a public offering of the common stock or possession or
  distribution of this prospectus.  Persons who come into possession of
  this prospectus in jurisdictions outside the United States must inform
  themselves about and observe any restrictions on this offering and on the
  distribution of this prospectus in that jurisdiction.

  All dealers effecting transactions in the shares offered by this
  prospectus---whether or not participating in the offering---may be
  required to deliver a copy of this prospectus.  Dealers may also be
  required to deliver a copy of this prospectus when acting as underwriters
  and for their unsold allotments or subscriptions, if any.



                                       [2 columns]
















  <PAGE>
                                                      PAGE 30

                                   PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS
  <TABLE>
  <CAPTION>
Item 14.  Other Expenses of Issuance and Distribution.

<S>                                                              <C>
Registration Fee - Securities and Exchange Commission            $12,119.32
Legal Fees and Disbursements*                                     14,500.00
Accounting Fees and Disbursements*                                13,200.00
Legal Fees and Expenses in Connection with Blue Sky Filings*       4,000.00
Miscellaneous*                                                       600.00
                                                                 ----------
     Total                                                       $44,419.32
                                                                 ==========
- --------------
<FN>
* Estimated.
</FN>
</TABLE>
  Item 15.  Indemnification of Directors and Officers.

        The only charter provision, bylaw, contract, arrangement or statute
  under which any director, officer or controlling person of Registrant is
  insured and indemnified in any manner as such is as follows:

        (a)  Registrant has the power under the Colorado Business
  Corporation Act to indemnify any person who was or is a party or is
  threatened to be made a party to any action, whether civil, criminal,
  administrative or investigative, by reason of the fact that such person
  is or was a director, officer, employee, fiduciary, or agent of
  Registrant or was serving at its request in a similar capacity for
  another entity, against expenses (including attorneys' fees), judgments,
  fines and amounts paid in settlement actually and reasonably incurred by
  him in connection therewith if he acted in good faith and in a manner he
  reasonably believed to be in the best interest of the corporation and,
  with respect to any criminal action or proceeding, had no reasonable
  cause to believe his conduct was unlawful.  In case of an action brought
  by or in the right of Registrant such persons are similarly entitled to
  indemnification if they acted in good faith and in a manner reasonably
  believed to be in the best interests of Registrant but no indemnification
  shall be made if such person was adjudged to be liable for negligence or
  misconduct in the performance of his duty to Registrant unless and to the
  extent the court in which such action or suits was brought determines
  upon application that despite the adjudication of liability, in view of
  all circumstances of the case, such person is fairly and reasonably





  <PAGE>
                                                      PAGE 31

  entitled to indemnification.  Such indemnification is not deemed
  exclusive of any other rights to which those indemnified may be entitled
  under the Articles of Incorporation, Bylaws, agreement, vote of
  shareholders or disinterested directors, or otherwise.

       (b)  The Articles of Incorporation and Bylaws of Registrant
  generally require indemnification of officers and directors to the
  fullest extent allowed by law.


  Item 16.  Exhibits.

  The following exhibits are filed as part of this Registration
  Statement or incorporated in it by reference:

  <TABLE>
  <CAPTION>
  Exhibit
  Number         Document
  <S>            <C>
  -------        --------

  EX-3.(i).1     Restated and Amended Articles of Incorporation, dated January 4, 1991
                 (incorporated herein by reference from the exhibits to Amendment
                 No. 2 to Registrant's Form S-18 Registration Statement No. 33-37150-D
                 filed with the Securities and Exchange Commission on January 18, 1991).

  EX-3.(i).2     Articles of Amendment dated April 5, 1991 to the Restated and Amended
                 Articles of Incorporation (incorporated herein by reference from the
                 exhibits to Registrant's Current Report on Form 8-K dated August 10, 1993
                 filed with the Securities and Exchange Commission).

  EX-3.(i).3     Articles of Amendment dated January 26, 1998 to Articles of Incorporation
                 -Preferences, Limitations and Relative Rights of Convertible Stock, Series
                 1998-B of Rentech, Inc. (incorporated herein by reference from Exhibit
                 No. 3.(I).2 to Registrant's Form 10-KSB filed with the SEC on January 13,
                 1999).

  EX-3.(i).4     Articles of Amendment dated December 4, 1998 to Articles of Incorporation
                 -Designation, Preferences and Rights of Series 1998-C Participating
                 Cumulative Preference Stock of Rentech, Inc. pertaining to its Shareholder
                 Rights Plan (incorporated herein by reference from Exhibit No. 3.(I).4 to
                 Registrant's Form 10-KSB filed with the Securities and Exchange Commission
                 on January 13, 1999).

  EX-3.(ii)      Bylaws dated January 19, 1999 (incorporated herein by reference from Exhibit
                 No. EX-3.(ii) to Registrant's Form 10-KSB filed with the Securities and
                 Exchange Commission on January 12, 2000).

  EX-4.1         Shareholder Rights Plan dated November 10, 1998 (incorporated herein by
                 reference from the exhibits to Current Report on Form 8-K filed with the
                 Securities and Exchange Commission on November 19, 1998).

  EX-4.2         Form of Warrant issued to investors in the 1999 private placement of
                 securities (incorporated herein by reference from Exhibit No. 4.2 to
                 Registrant's Form 10-KSB filed with the Securities and Exchange Commission
                 on January 12, 2000).


  <PAGE>
                                                      PAGE 32

  EX-4.3         Form of Registration Rights Agreement issued to investors in the 1999
                 private placement of securities (incorporated herein by reference from
                 Exhibit No. 4.3 to Registrant's Form 10-KSB filed with the Securities and
                 Exchange Commission on January 12, 2000).

  EX-5           Opinion of Brega & Winters, P.C.

  EX-23.1        Consent of Independent Certified Public Accountants.

  EX-23.2        Consent of Brega & Winters P.C. (included in Exhibit 5).

  EX-24          Power of Attorney.

  </TABLE>


  Item 17.  Undertakings.

  I.     (a)  The undersigned Registrant hereby undertakes:

                 (1)  To file, during any period in which offers or sales
            are being made, a post-effective amendment to this
            Registration Statement:

                 (i)  to include any prospectus required by Section
            10(a)(3) of the Securities Act of 1933;

                 (ii)  to reflect in the prospectus any facts or events
            arising after the effective date of the Registration
            Statement (or the most recent post-effective amendment
            thereof) which, individually or in the aggregate, represent a
            fundamental change in the information set forth in the
            Registration Statement;

                 (iii)  to include any material information with respect
            to the plan of distribution not previously disclosed in the
            Registration Statement or any material change to such
            information in the Registration Statement;

                 (2)  That, for the purpose of determining any liability
            under the Securities Act of 1933, each such post-effective
            amendment shall be deemed to be a new registration statement
            relating to the securities offered therein, and the offering
            of such securities at that time shall be deemed to be the
            initial bona fide offering thereof; and

                 (3)  To remove from registration by means of a
            post-effective amendment any of the securities being
            registered which remain unsold at the termination of the
            offering.



  <PAGE>

                                                      PAGE 33

         (b)  The undersigned registrant hereby undertakes that, for
  purposes of determining any liability under the Securities Act of 1933,
  each filing of the registrant's annual report pursuant to Section 13(a)
  or Section 15(d) of the Securities Exchange Act of 1934 (and, where
  applicable, each filing of an employee benefit plan's annual report
  pursuant to Section 15(d) of the Securities Exchange Act of 1934) that
  is incorporated by reference in the registration statement shall be
  deemed to be a new registration statement relating to the securities
  offered therein, and the offering of such securities at that time shall
  be deemed to be the initial bona fide offering thereof.

         (c)  Insofar as indemnification for liabilities arising under
  the Securities Act of 1933 may be permitted to directors, officers and
  controlling persons of the Registrant pursuant to the foregoing
  provisions, or otherwise, the Registrant has been advised that in the
  opinion of the Securities and Exchange Commission such indemnification
  is against public policy as expressed in the Act and is, therefore,
  unenforceable.  In the event that a claim for indemnification against
  such liabilities (other than the payment by the Registrant of expenses
  incurred or paid by a director, officer or controlling person of the
  Registrant in the successful defense of any action, suit or proceeding)
  is asserted by a director, officer or controlling person in connection
  with the securities being registered, the Registrant will, unless in
  the opinion of its counsel the matter has been settled by controlling
  precedent, submit to a court of appropriate jurisdiction the question
  of whether such indemnification by it is against public policy as
  expressed in the Act and shall be governed by the final adjudication of
  such issue.

























  <PAGE>
                                                      PAGE 34

                                SIGNATURES

       Pursuant to the requirements of the Securities Act of 1933, the
  Registrant certifies that it has reasonable grounds to believe it meets
  all of the requirements for filing on Form S-3 and has duly caused this
  Registration Statement to be signed on its behalf by the undersigned,
  thereunto duly authorized, in the City of Denver, State of Colorado, on
  the 25th day of May, 2000.

                              RENTECH, INC.

                               (signature)
                         By:  ---------------------------------
                              Dennis L. Yakobson, President


       Pursuant to the requirements of the Securities Act of 1933, this
  Registration Statement has been signed by the following persons in the
  capacities and on the dates indicated.


  Signature                  Title                        Date
  ---------                  -----                        ----


  (signature)
  ----------------------     President, Chief Executive   May 25, 2000
  Dennis L. Yakobson         Officer and Director


  (signature)
  ----------------------     Vice President, Chief        May 25, 2000
  Ronald C. Butz             Operating Officer,
                             Secretary and Director


  (signature)
  ----------------------     Director                     May 25, 2000
  John J. Ball


  (signature)
  ----------------------     Director                     May 25, 2000
  John P. Diesel


  (signature)
  ----------------------     Vice President - Finance,    May 25, 2000
  James P. Samuels           Chief Financial Officer


  (signature)
  ----------------------     Director                     May 25, 2000
  Douglas L. Sheeran


  (signature)
  ----------------------     Director                     May 25, 2000
  Erich W. Tiepel















































  <PAGE>
                                                      PAGE 35
                           EXHIBIT INDEX


  <TABLE>
  <CAPTION>
  Exhibit
  Number         Document
  <S>            <C>

  EX-3.(i).1     Restated and Amended Articles of Incorporation, dated January 4, 1991
                 (incorporated herein by reference from the exhibits to Amendment
                 No. 2 to Registrant's Form S-18 Registration Statement No. 33-37150-D
                 filed with the Securities and Exchange Commission on January 18, 1991).

  EX-3.(i).2     Articles of Amendment dated April 5, 1991 to the Restated and Amended
                 Articles of Incorporation (incorporated herein by reference from the
                 exhibits to Registrant's Current Report on Form 8-K dated August 10,
                 1993 filed with the Securities and Exchange Commission).

  EX-3.(i).3     Articles of Amendment dated January 26, 1998 to Articles of Incorporation
                 -Preferences, Limitations and Relative Rights of Convertible Stock, Series
                 1998-B of Rentech, Inc. (incorporated herein by reference from Exhibit
                 No. 3.(I).2 to Registrant's Form 10-KSB filed with the SEC on January 13,
                 1999).

  EX-3.(i).4     Articles of Amendment dated December 4, 1998 to Articles of Incorporation
                 -Designation, Preferences and Rights of Series 1998-C Participating
                 Cumulative Preference Stock of Rentech, Inc. pertaining to its Shareholder
                 Rights Plan (incorporated herein by reference from Exhibit No. 3.(I).4 to
                 Registrant's Form 10-KSB filed with the Securities and Exchange Commission
                 on January 13, 1999).

  EX-3.(ii)      Bylaws dated January 19, 1999 (incorporated herein by reference from
                 Exhibit No. EX-3.(ii) to Registrant's Form 10-KSB filed with the Securities
                 and Exchange Commission on January 12, 2000).

  EX-4.1         Shareholder Rights Plan dated November 10, 1998 (incorporated herein by
                 reference from the exhibits to Current Report on Form 8-K filed with the
                 Securities and Exchange Commission on November 19, 1998).

  EX-4.2         Form of Warrant issued to investors in the 1999 private placement of
                 securities (incorporated herein by reference from Exhibit No. 4.2 to
                 Registrant's Form 10-KSB filed with the Securities and Exchange Commission
                 on January 12, 2000).

  EX-4.3         Form of Registration Rights Agreement issued to investors in the 1999
                 private placement of securities (incorporated herein by reference from
                 Exhibit No. 4.3 to Registrant's Form 10-KSB filed with the Securities
                 and Exchange Commission on January 12, 2000).

  EX-5           Opinion of Brega & Winters, P.C.

  EX-23.1        Consent of Independent Certified Public Accountants.

  EX-23.2        Consent of Brega & Winters P.C. (included in Exhibit 5).

  EX-24          Power of Attorney.

  </TABLE>


  <PAGE>

                                  EXHIBIT 5

                    Brega & Winters P.C.  Attorneys at Law
            Wells Fargo Center, 1700 Lincoln Street, Suite 2222
                          Denver, Colorado 80202

                                  May 24, 2000


  Rentech, Inc.
  1331 17th Street, Suite 720
  Denver, Colorado 80202

       Re:  Registration Statement on Form S-3

  Gentlemen:

       This firm has represented Rentech, Inc., a Colorado corporation (the
  Company), in connection with the proposed offering by selling
  shareholders of up to 13,990,560 shares of its common stock, $.01 par
  value, including shares of common stock underlying its stock options and
  warrants to purchase common stock, pursuant to a registration statement
  on Form S-3. In connection with such representation, we have reviewed the
  Company's articles of incorporation, bylaws, minute books and the
  applicable laws of the state of Colorado.

       Based on such review, we are of the opinion that the shares of
  common stock issued or to be issued to the selling shareholders
  identified in the registration statement are fully paid and
  non-assessable.

       We hereby consent to the reference to our firm under the heading
  "LEGAL OPINIONS" in the registration statement on Form S-3 and the
  related prospectus and to the filing of this opinion with the Securities
  and Exchange Commission as an exhibit to the registration statement.

                                  Very truly yours,


                                  (Signature)

                                  BREGA & WINTERS P.C.


                                EXHIBIT 23.1

             CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS



  Stockholders and Board of Directors
  Rentech, Inc.
  Denver, Colorado

       We hereby consent to the incorporation by reference in the
  Prospectus constituting a part of this Registration Statement of our
  report dated November 12, 1999, except for Note 12 which is as of January
  12, 2000, relating to the consolidated financial statements of Rentech,
  Inc. appearing in the Company's Annual Report on Form 10-KSB for the year
  ended September 30, 1999.

  We also consent to the reference to us under the caption "Experts" in the
  Prospectus.



  /s/ BDO Seidman, LLP

  Denver, Colorado
  May 24, 2000



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission