Any Subsidiary which is formed or acquired or otherwise becomes a Subsidiary of the Credit Parties following the date hereof, within five (5) Business Days of such event, shall become an additional Credit Party hereto, and the Borrowers shall take any and all actions necessary or required by Lender to cause said Subsidiary to execute a counterpart to this Agreement and any and all other documents which the Lender shall require, including causing such party to execute those documents contained in Section 3.21 hereof.