premise: Within ten (10) business days of a written demand by a Disclosing Party, the Receiving Party shall either return (to the Disclosing Party) or destroy all Confidential Information, together with any copies, accompanied by a letter executed by an authorized representative of the Receiving Party to the effect that all such material has been returned or destroyed, except that the Receiving Party may retain an archival copy of the Confidential Information, to be used only in case of a dispute concerning this Agreement. 