  We propose an extension of the standard model with an extra U(1)' abelian
symmetry, three Higgs doublets and one Higgs singlet, where the new U(1)'
charges are flavour non-universal. As a result, the model introduces an
enlarger particle spectrum in the TeV scale with large new physics
possibilities. The model reproduces the mixing angles and mass structures of
the quarks, charged and neutral leptons. We found that the observed anomaly of
the $B^{+}\rightarrow K^+ \ell \ell$ decay can be explained due to the
existence of couplings with new extra fermions at the TeV scale.
