  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 overcoming the difficulties resulting from the
singular Lorentz term, we first obtain the uniform estimates of solutions with
respect to the Knudsen number and then derive the magnetohydrodynamics system
from the dimensionless Valsov-Maxwell-Boltzmann system.
