Today Rentech Nitrogen, LLC, a wholly-owned subsidiary of Rentech Nitrogen Partners, L.P. (NYSE: RNF), and Yara North America Inc., the world's largest Diesel Exhaust Fluid (DEF) producer, announced that they have entered into a long-term agreement for the exclusive rights to purchase and distribute the DEF produced at the Rentech Nitrogen facility in East Dubuque, IL under Yara's Air1® brand. Air1 DEF, a non-toxic solution that transforms harmful NOx emissions from heavy-duty diesel-powered vehicles into harmless water vapor and nitrogen, is the operating fluid used with SCR technology to comply with the EPA's 2010 emissions standards.

The agreement comes just ahead of Rentech Nitrogen's urea expansion and DEF build-out to be completed later this year. Under the agreement, Rentech Nitrogen will supply Yara, a leader in the DEF market, with DEF from its urea liquor stream that meets the high standards of ISO 22241 specifications and protects engine catalysts.

Rentech Nitrogen's plant location in northwestern Illinois will allow Yara to service targeted high-demand DEF markets in the Midwest, including Wisconsin, Illinois and Iowa. Additionally, the plant's location near major transportation arteries will allow Yara to supply DEF to the Rockies, other central U.S. states outside the Midwest, and Canada.

"We are looking forward to a successful long-term partnership with Rentech Nitrogen," says Chad Dombroski, Director of Air1 for Yara. "We're dedicated to continually bolstering our DEF production and distribution capabilities to ensure our ability to produce and supply DEF to our customers in North America, wherever and whenever they need it, is one step ahead of the fast-growing demand of the market. Our agreement with Rentech Nitrogen will further our ability to make good on this promise and is aligned with our broader goal of developing the nation's supply network."

"We're excited to expand our nitrogen fertilizer product offerings to include DEF, a much needed product in a growing market segment," says Marc Wallis, Rentech Nitrogen's Senior Vice President of Sales and Marketing. "For our DEF product, we have chosen to team exclusively with Yara, a DEF market leader, and are looking forward to combining our manufacturing expertise and the capabilities of our East Dubuque facility with Yara's rich experience in this space."

The agreement further demonstrates Yara's commitment to expanding its global production and distribution capabilities in-line with domestic DEF market growth. In June, the company announced the opening of a DEF terminal in Bayonne, N.J., the most recent addition to Yara's coast-to-coast network of terminals throughout North America.

Rentech Nitrogen Partners, L.P.

Rentech Nitrogen (www.rentechnitrogen.com) was formed by Rentech, Inc. to own, operate and expand its nitrogen fertilizer business. Rentech Nitrogen's assets consist of a nitrogen fertilizer facility located in East Dubuque, Illinois, owned by Rentech Nitrogen, LLC, the operating subsidiary of Rentech Nitrogen Partners, L.P. The facility is located in the Mid Corn Belt in the northwestern corner of Illinois, adjacent to the Iowa and Wisconsin state lines, and produces primarily anhydrous ammonia and urea ammonium nitrate solution, using natural gas as its primary feedstock, for sale to customers in the Mid Corn Belt.

About Yara International

Yara delivers solutions for sustainable agriculture and the environment. Our fertilizers and crop nutrition programs help produce the food required for the growing world population. Our industrial products and solutions reduce emissions, improve air quality and support safe and efficient operations. Founded in Norway in 1905, Yara has a worldwide presence with sales to 150 countries. Safety is always our top priority. Yara is one of the pioneers of DEF in Europe since 2005 and an expert in DeNOx applications, both mobile and stationary. Its Sluiskil plant in the Netherlands is the largest DEF plant in the world. Yara supplies customers with its Air1's DEF in North America, Europe, Asia and Australia. For more information about Air1, please visit www.air1def.com or email air1@yara.com.

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Rentech Nitrogen Partners, L.P.
Julie Dawoodjee
Office: (310) 571-9800
jdawoodjee@rnp.net
or
Yara North America, Inc.
Corrie Leech
Office: (312) 596-3431
Corrie.Leech@bm.com