In this chapter, the following terms have the meanings indicated. Terms Defined. Undisputed Amount. “Undisputed amount” means an amount owed by a contractor to a subcontractor or supplier for which there is no good faith dispute, including any retainage withheld. “Undisputed amount” includes an amount withheld because of a dispute arising out of an agreement or occurrence unrelated to the agreement under which the amount is withheld. “Prime contractor” means a person or firm that has a State procurement contract with a unit. Contractor. “Contractor” means a person or firm that: Has an agreement to perform all or some of the work required under a State contract; and Subcontracts with another person or firm for performance of all or some of the work required under the contract. “Contractor” includes a prime contractor and a subcontractor at any tier. “Subcontractor” means a person or firm that has an agreement with a contractor to perform all or some of the contractor's work under a State contract. “Supplier” has the same definition set forth in State Finance and Procurement Article. §15–226, Annotated Code of Maryland, and COMAR 21.01.02.01.B.