Exhibit 21
ClearFuels Technology Inc., a Hawaii corporation
Deposit Wood Pellet, LLC, a Delaware limited liability company
DSHC, LLC, a Delaware limited liability company
Forestal Los Andes S.A.
Forestal Pacifico S.A.
Fulghum Fibres, Inc., a Georgia corporation
Fulghum Fibres Chile S.A.
Fulghum Fibres Collins, Inc., a Georgia corporation
Fulghum Fibres Florida, Inc., a Georgia corporation
Fulghum Fibres New Zealand Limited
Fulghum Fibres Uruguay S.A.
Fulghum Fibrefuels, Ltd., a Georgia corporation
Fulghum Graanul Oliver, LLC, a Georgia limited liability company
Fulghum Graanul Woodland, LLC, a Georgia limited liability company
GCSEC Holdings, LLC, a Delaware limited liability company
formerly named RSFC, LLC, a Delaware limited liability company
Gulf Coast Synthetic Energy Center, LLC, a Delaware limited liability company
formerly named RSFC Land Management, a Delaware limited liability company
New England Wood Pellet, LLC, a Delaware limited liability company
Olympiad Renewable Energy Centre, ULC, a British Columbia unlimited liability company
Rentech Development Corporation, a Delaware corporation
formerly Rentech Development Corporation, a Colorado corporation
Rentech Energy Technology Center, LLC, a Colorado limited liability company
formerly named Sand Creek Energy, LLC, a Colorado limited liability company
Rentech Graanul, LLC, a Delaware limited liability company
Rentech Nitrogen Holdings, Inc., a Delaware corporation
Rentech Services Corporation, a Colorado corporation
Rentech WP U.S. Inc., a Delaware corporation
RTK (Luxembourg) WP, a Luxembourg S.A.R.L.
RTK CAB LLC
RTK Canada Energy Holdings, ULC, a British Columbia unlimited liability company
RTK WP Dev Canada, ULC, a British Columbia unlimited liability company
RTK WP Canada, ULC, a British Columbia unlimited liability company
RTK WP Holdings, ULC, a British Columbia unlimited liability company
RTK WP2 Canada, ULC, a British Columbia unlimited liability company
RTK WP2 Holdings, ULC, a British Columbia unlimited liability company
RTK WP3 Canada, ULC, a British Columbia unlimited liability company
RTK WP4 Canada, ULC, a British Columbia unlimited liability company
RTK WP5 Canada, ULC, a British Columbia unlimited liability company
Schuyler Wood Pellet, LLC, a Delaware limited liability company
SilvaGas Corporation, a Delaware corporation
West Monroe Fibre Processing Company, Inc., a Georgia corporation