  The sequestering of supersymmetry (SUSY) breaking parameters, which is
induced by superconformal hidden sector, is one of the solutions for the
mu/B_mu problem in gauge-mediated SUSY-breaking scenario. However, it is found
that the minimal messenger model does not derive the correct electroweak
symmetry breaking. In this paper we present a model which has the coupling of
the messengers with the SO(10) GUT-symmetry breaking Higgs fields. The model is
one of the realistic extensions of the gauge mediation model with
superconformal hidden sector. It is shown that the extension is applicable for
a broad range of conformality breaking scale.
