X0101 EFFECT 33 LIVE 2010-04-01 09:00:00

S-3

0000868725 RENTECH INC /CO/ 333-164654 0001463758 RSFC Land Management, LLC 333-164654-08 0001483013 Rentech SilvaGas LLC 333-164654-07 0001483012 SilvaGas Corp 333-164654-06 0001463763 Rentech Energy Midwest Corp 333-164654-05 0001356531 Rentech Development CORP 333-164654-04 0001356523 Rentech Services CORP 333-164654-03 0001463762 Rentech Energy Technology Center, LLC 333-164654-02 0001463760 RSFC, LLC 333-164654-01