  We analyze B -> K H_c (where H_c = eta_c, J/psi, chi_{cJ(J=0,1)}) decays
estimating nonfactorizable contributions from the light-cone sum rules (LCSR).
Nonfactorizable contributions are sizable for B -> K J/psi and particularly for
B -> K chi_{c1} decay. For the B decays into a (pseudo)scalar charmonia we find
small nonfactorizable contributions which cannot accommodate relatively large
branching ratios obtained by measurements. This specially concerns the puzzling
B -> K chi_{c0} decay.
