A facility or that portion of a facility described in section 7a, for which an industrial facilities exemption certificate is in effect, but not the land on which the facility is located or to be located or inventory of the facility, for the period on and after the effective date of the certificate and continuing so long as the industrial facilities exemption certificate is in force, is exempt from ad valorem real and personal property taxes and the lessee, occupant, user, or person in possession of that facility for the same period is exempt from ad valorem taxes imposed under Act No. 189 of the Public Acts of 1953, being sections 211.181 and 211.182 of the Michigan Compiled Laws.