Rentech Files Shelf Registration Statement

LOS ANGELES--(Business Wire)--
Rentech, Inc. (NYSE AMEX:RTK) today announced it has filed a shelf registration
statement on Form S-3, to replace its existing shelf registration which expires
on March 31, 2009. The new registration statement, filed with the Securities and
Exchange Commission (SEC), if declared effective by the SEC, would allow the
Company to sell, from time to time, up to $100 million of various types of
securities in one or more offerings. Rentech is not required to offer or sell
all or any portion of the securities in the future under the shelf registration
statement and will do so only if market conditions warrant, and if Rentech`s
needs for capital require such sales of securities. The terms of any offering
under the shelf registration statement would be established at the time of any
such offering.

The recently filed Form S-3 is intended to give Rentech flexibility to take
advantage of financing opportunities when market conditions are favorable to the
Company. The use of potential future proceeds from the sale of securities under
the shelf registration statement could enable Rentech to accelerate the
development of the Company`s planned renewable and fossil synthetic fuels
facilities. Rentech has no current agreements, plans or discussions to offer any
of the shares covered under the Form S-3 for sale.

The shelf registration statement that has been filed is not yet effective. No
securities pursuant to this registration statement may be sold, nor may offers
to buy any such securities be accepted prior to the time the registration
statement becomes effective. This press release shall not constitute an offer to
sell or the solicitation of an offer to buy, nor shall there be any sale of the
securities in any jurisdiction in which such offer, solicitation or sale would
be unlawful prior to registration or qualification under the securities laws of
any such jurisdiction. Any offering may be made only by means of a prospectus
and a related prospectus supplement which will describe any offered securities
and the use of proceeds from the sale of any such securities.

About Rentech, Inc.

Rentech, Inc. (www.rentechinc.com), incorporated in 1981, provides clean energy
solutions. The Rentech Process is a patented and proprietary technology that
converts synthesis gas from biomass and fossil resources into hydrocarbons that
can be processed and upgraded into ultra-clean synthetic fuels, specialty waxes
and chemicals. Rentech Energy Midwest Corporation, the Company`s wholly-owned
subsidiary, manufactures and sells fertilizer products including ammonia, urea
ammonia nitrate, urea granule and urea solution to the corn-belt region.

Safe Harbor Statement

This press release contains forward-looking statements as defined in the Private
Securities Litigation Reform Act of 1995 about statements regarding the filing
of the registration statement on Form S-3 and potential use of proceeds from the
sale of securities covered under the Form S-3. These statements are based on
management`s current expectations and actual results may differ materially as a
result of various risks and uncertainties. Other factors that could cause actual
results to differ from those reflected in the forward-looking statements are set
forth in the Company`s prior press releases and periodic public filings with the
Securities and Exchange Commission, which are available via Rentech`s web site
at www.rentechinc.com. The forward-looking statements in this press release are
made as of the date of this press release and Rentech does not undertake to
revise or update these forward-looking statements, except to the extent that it
is required to do so under applicable law.

For more information

For more information please contact: Julie Dawoodjee, Vice President of Investor
Relations and Communications, Rentech, Inc. at 310-571-9800, extension 341, or
by email at ir@rentk.com.

Rentech, Inc.
Julie Dawoodjee
Vice President of Investor Relations and Communications
310-571-9800 x341
ir@rentk.com

Copyright Business Wire 2009