Supersymmetric SO(10) with SU(2)_L X SU(2)_R X SU(4)_C Intermediate Gauge Symmetry

In recent analyses the existence of $SU(2{)}_L\times \text{SU}(2{)}_R\times \text{SU}(4{)}_C(g_{2L}\mathrm{\ne }{g}_{2R})$ intermediate gauge symmetry has been ruled out in SUSY SO(10) model at one-loop level, although the left-right symmetric intermediate gauge group has been shown to exist with certain light scalar superfields near 1 TeV.We show,how the asymmetric gauge group is allowed with an intermediate scale $M_I={10}^{1}0-{10}^{1}3$ GeV by including two-loop and threshold effects.