Illinois Statutes Chapter 770. Liens § 105/1. Lien

(A) Plastic or metal processors or persons conducting a plastic or metal processing business shall have a lien on the tools, dies, molds, jigs, fixtures, forms or patterns in their possession belonging to a customer, for the balance due them from such customer for plastic or metal processing work, and for all materials related to such work. The processor may retain possession of the tool, die, mold, jig, fixture, form or pattern until such balance is paid, subject only to a security interest properly perfected pursuant to Article 9 of the Uniform Commercial Code.  1

(B) A toolmaker has a lien on all special tools produced by it and on all proceeds from the assignment, sale, transfer, exchange, or other disposition of the special tool produced by it until the toolmaker is paid in full all amounts due the toolmaker for the production of the special tool. For the purpose of this subsection: