805 ILCS 180/45-30

Requirement for registered agent and certain reports. A foreign limited liability company admitted to transact business in this State shall:

(1) appoint and continuously maintain a registered agent and registered office in the manner provided in Section 1-35;

(2) file a report upon any change in the name or business address of its registered agent or address of the registered office in the manner provided in Section 1-36; and

(3) file an annual report as required by Section 50-1.