premise: 6. Company agrees, upon request, to promptly return or destroy all items relating to Confidential Information, including but not limited to, all materials, written materials, drawings, data and records provided or otherwise made available by Verenium, and all copies (in any form) thereof, with a certificate of compliance with the foregoing, executed by an appropriate officer of Company within 30 days of such request, provided that the Company may maintain a single copy of such Confidential Information within its Legal Department for archival purposes. 