22 Exhibit 24.1 GENERAL POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, each person whose signature appears below hereby authorizes, constitutes and appoints Dennis L. Yakobson and Ronald C. Butz, and each of them, his true and lawful attorney-in-fact and agents with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign this Registration Statement for the registration under the Securities Act of 1933, as amended, of Common Stock of Rentech, Inc. and any and all pre-effective and post-effective amendments to this Registration Statement, together with any and all exhibits thereto and other documents required to be filed with respect hereto and thereto and to file the same with the Securities and Exchange Commission and any other regulatory, granting unto said attorneys-in-fact and agents and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or each of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof and incorporate such changes as any of the said attorneys-in-fact deems appropriate. 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 February 3, 1998 Dennis L. Yakobson Officer and Director (signature) -------------------- Vice President, Chief February 3, 1998 Ronald C. Butz Operating Officer, Secretary and Director (signature) -------------------- Director February 3, 1998 Mark S. Bohn (signature) -------------------- Director February 3, 1998 Erich W. Tiepel (signature) -------------------- Vice President - Finance, February 3, 1998 James P. Samuels Chief Financial Officer