Subject to the other provisions of this Section 5.03 , Buyer and Seller shall cooperate fully, and shall cause their respective Affiliates to cooperate fully, as and to the extent reasonably requested by any Party, in connection with the preparation and filing of Tax Returns and any Tax Contest or other proceeding with respect to such Tax Returns or with respect to Taxes relating to the Acquired Assets. Such cooperation shall include the retention and (upon a Party’s request) the provision of records and information which are reasonably relevant to any such Tax Return, Tax Contest or other proceeding and making employees available on a mutually convenient basis to provide additional information and explanation of any material provided hereunder. The requesting Party shall reimburse the cooperating Parties for all reasonable costs and documented, out-of-pocket expenses incurred by such cooperating Parties.