premise: 3. Vendor and Ingram mutually agree that all copies of the Proprietary Information and all written descriptions, extractions, or summaries thereof, whether made by Vendor or Ingram, shall be the property of Ingram, and shall, upon expiration of this Agreement or Ingram's request, be immediately returned to Ingram. 4. Vendor and Ingram mutually agree that Ingram's public disclosure of the Proprietary Information, except pursuant to a confidential disclosure agreement, to any party will release Vendor from the obligation of confidentiality with respect to that portion of the Proprietary Information actually disclosed by Ingram. 5. Upon termination of this Agreement by either party for any reason, Vendor shall return all Proprietary Information to Ingram within thirty (30) days, irrespective of format. 