The Company shall execute any and all further documents, financing statements, agreements and instruments, and take all further action (including filing Uniform Commercial Code, United States Patent and Trademark Office and other financing statements not later than one (1) business day after the Closing Date) that may be required under applicable law, or that the Purchasers may reasonably request, in order to effectuate the transactions contemplated by the Loan Documents and in order to grant, preserve, protect and perfect the validity of the security interests created or intended to be created by the Notes and the other Loan Documents. Subject to any express provision of this Agreement to the contrary, the Company will cause any existing or subsequently acquired or organized subsidiary to become a guarantor by executing a guaranty in substantially the form attached hereto as Exhibit D and a joinder to each applicable Loan Document in favor of the Purchasers. In addition, from time to time, the Company shall, at its cost and expense and subject to the terms of the Notes and the Subordination Agreement, promptly secure the Notes by pledging or creating, or causing to be pledged or created, perfected security interests with respect to such of its assets and properties as the Purchasers shall designate. Such security interests and Liens will be created under the Loan Documents and other security agreements, mortgages, deeds of trust and other instruments and documents in form and substance satisfactory to the Purchasers, and the Company shall deliver or cause to be delivered to the Purchaser all such instruments and documents as the Purchaser shall reasonably request to evidence compliance with this Section 6(c) . The Company agrees to provide such evidence as the Purchaser shall reasonably request as to the perfection of each such security interest and Lien. In furtherance of the foregoing, the Company will give prompt notice to the Purchasers of the acquisition by it or any of its subsidiaries of any property (or any interest in property) having a value in excess of $100,000.