Executive agrees that during the Employment Period and for a period during which Executive is being compensated under Section 4.5.1 or otherwise following termination of employment for any reason, Executive shall, at Company’s sole expense, upon reasonable advance notice, reasonably assist and cooperate with Company with regard to any investigation or litigation related to a matter or project in which Executive was involved during Executive’s employment so long as such assistance does not unreasonably interfere with Executive’s time or other responsibilities. Company shall reimburse Executive for all reasonable and necessary out-of-pocket expenses related to Executive’s services under this Section 4.9 within 30 business days after Executive submits to Company appropriate receipts and expense statements.