Except as described in § 712.25, at the time a chemical substance is listed in § 712.3, the following persons must submit the “Manufacturer's Report—Preliminary Assessment Information” (as described in § 712.28) for each plant site at which they manufactured or imported the chemical substance during the reporting period specified in § 712.30:

(a) Persons who manufactured one or more of the chemical substances listed in § 712.30 for commercial purposes.

(b) Persons who imported in bulk form one or more of the chemical substances listed in § 712.30 for commercial purposes.