Rentech Appoints Dan J. Cohrs as Chief Financial Officer

LOS ANGELES--(Business Wire)--
Rentech, Inc. (AMEX: RTK) today announced the appointment of Dan
J. Cohrs as Executive Vice President and Chief Financial Officer
(CFO). Mr. Cohrs' appointment was effective on October 22, 2008. Doug
Miller, who served as Interim Chief Financial Officer during the past
few months, will continue his duties as Chief Operating Officer of
Rentech.

Mr. Cohrs has more than 20 years of experience in corporate
finance, strategy and planning, and mergers and acquisitions. He has
held senior positions in companies ranging from start-ups to
industry-leading multinationals such as Marriott, Northwest Airlines,
GTE and Global Crossing. In those positions, Mr. Cohrs built and
managed global financial and strategy organizations, raised more than
$25 billion of capital and participated in a number of the largest M&A
transactions in the telecommunications industry.

Mr. Cohrs has also been a strategy consultant with Marakon
Associates and a faculty member at Cornell University and Harvard
University, teaching courses in corporate governance and finance. Mr.
Cohrs earned a B.S. degree in engineering from Michigan State
University and M.S. and Ph.D. degrees in finance, economics and public
policy from Cornell University's Johnson Graduate School of
Management. Most recently he has been an independent consultant and a
founder and member of the board of Agency 3.0, an advertising agency
formed as a joint venture with the William Morris Agency.

At Rentech, Mr. Cohrs will be responsible for all financial and
accounting functions, investor relations and information technology.

"We are very pleased to welcome Dan to our Company," stated D.
Hunt Ramsbottom, President and CEO of Rentech. "Dan brings the
expertise and experience of a seasoned CFO of a large publicly traded
company as well as the capability to work with a smaller organization
and scale it up. Dan's extensive capital raising experience will be
instrumental in facilitating the commercial deployment of the Rentech
Process," continued Mr. Ramsbottom.

Mr. Cohrs commented, "I'm excited to be joining the Rentech team.
I believe the Company has a great future providing clean energy
solutions that will promote energy independence by using both domestic
fuels and waste as feedstocks. Unlike many companies trying to develop
alternative energy technologies, Rentech has a source of cash flow
from its profitable fertilizer business, which can help fund the
commercial deployment of Rentech's proven synthetic fuels technology."

Mr. Ramsbottom added, "I'd like to thank Doug for serving as
Interim CFO during this transitional period."

Mr. Cohrs has entered into a three-year employment agreement with
Rentech. Pursuant to the terms of the agreement, the Company shall
grant Mr. Cohrs 325,000 restricted stock units that are to be settled
in shares of common stock of Rentech. These restricted stock units
will vest over a three-year period, subject to partial or complete
acceleration under certain circumstances, including termination
without cause or upon a change in control. The Company will also grant
to Mr. Cohrs 110,500 long-term incentive performance share awards. The
awards are split evenly between Rentech's absolute share price
appreciation and total shareholder return award agreements and are
substantially similar to the awards granted to a group of the
Company's officers in July 2008. Zero to 100% of these awards vest in
April of 2011 based on the performance of the Company's stock relative
to the performance criteria set forth in the agreements.

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. These
energy resources include natural gas, biomass, municipal solid waste,
petroleum coke and coal. Rentech Energy Midwest Corporation
manufactures and sells fertilizer products including ammonia, urea
ammonia nitrate, urea granule and urea solution to the corn-belt
region.

Safe Harbor

This press release contains forward-looking statements as defined
in the Private Securities Litigation Reform Act of 1995 about matters
such as Rentech's future prospects. These statements are based on
management's current expectations and actual results may differ
materially as a result of various risks and uncertainties. Factors
that could cause actual results to differ from those reflected in the
forward-looking statements are set forth in the Company's 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 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.

Rentech, Inc.
Julie Dawoodjee, Director of Investor Relations
310-571-9800, extension 341
email: ir@rentk.com

Copyright Business Wire 2008