0001104659-06-034503 Sample Contracts

RENTECH, INC. NONSTATUTORY STOCK OPTION AGREEMENT
Nonstatutory Stock Option Agreement • May 15th, 2006 • Rentech Inc /Co/ • Paints, varnishes, lacquers, enamels & allied prods • Colorado

THIS STOCK OPTION AGREEMENT hereinafter referred to as the “Option” or the “Agreement,” is entered into on July 11, 2002, between RENTECH, INC., a Colorado corporation (“the Company”), and James E. Siebarth (“the Optionee”), whose address is 881 South Foothill Drive, Lakewood, CO 80228.

RENTECH, INC. NONSTATUTORY STOCK OPTION AGREEMENT
Nonstatutory Stock Option Agreement • May 15th, 2006 • Rentech Inc /Co/ • Paints, varnishes, lacquers, enamels & allied prods • Colorado

THIS STOCK OPTION AGREEMENT, hereinafter referred to as the “Option” or the “Agreement,” is entered into on July 11, 2002, between RENTECH, INC., a Colorado corporation (“the Company”), and Richard O. Sheppard (“the Optionee”), whose address is 1374 Kerr Gulch Road, Evergreen, CO 80439.