  In this work, the magnetohydrodynamics system is formally derived from two
species Vlasov-Maxwell-Boltzmann system. By employing the hypocoercivity of the
linear Boltzmann operator and the approximate Ohm's law, the
magnetohydrodynamics system limit of the two species Valsov-Maxwell-Boltzmann
is rigorously verified based on the uniform estimates of solutions with respect
to the Knudsen number.
