In this section the following words have the meanings indicated. “Conflict mineral” means a mineral or mineral derivative determined under federal law to be financing human conflict. “Conflict mineral” includes columbite–tantalite (coltan), cassiterite, gold, wolframrite, or derivatives of these minerals. “Noncompliant person” means a person: that is required to disclose under federal law information relating to conflict minerals that originated in the Democratic Republic of the Congo or its neighboring countries; and for which the disclosure is not filed, is considered under federal law to be an unreliable determination, or contains false information. A unit may not knowingly procure supplies or services from a noncompliant person. In any solicitation for supplies or services, a unit shall provide notice of the requirements of this section.