(i) An ERISA Event occurs with respect to a Pension Plan or Multiemployer Plan which when taken together with all other ERISA Events that have occurred has resulted or would reasonably be expected to result in a Material Adverse Effect, or (ii) the Borrower or any ERISA Affiliate fails to pay when due, after the expiration of any applicable grace period, any installment payment with respect to its withdrawal liability under Section 4201 of ERISA under a Multiemployer Plan in an aggregate amount in excess of $25,000,000.