(a) It is unlawful to knowingly engage in the possession, procurement, transportation, storage, or delivery of any methamphetamine manufacturing material, other than a methamphetamine precursor, substance containing a methamphetamine precursor, or anhydrous ammonia, with the intent that it be used to manufacture methamphetamine.
     (b) A person who violates subsection (a) of this Section is guilty of a Class 2 felony.