Rentech, Inc. is a provider of wood fiber processing services, wood chips and wood pellets. The Company's processing business includes Fulghum Fibres, Inc. (Fulghum), which operates approximately 30 wood chipping mills in the United States and South America. The Company provides wood yard operations services. The Company operates a wood fiber processing business. The Company's segments include Fulghum Fibres, which involves the operations of Fulghum; Wood Pellets: Industrial, which includes its facilities and wood pellet development activities, and Wood Pellets: New England Wood Pellet, LLC (NEWP), which involves in the operations of NEWP and produces wood pellets for the residential and commercial heating markets in the United States, and it also includes Allegheny Pellet Corporation's (Allegheny's) operations. It is also engaged in the fertilizer business through its subsidiary, Rentech Nitrogen Partners, L.P (RNP).