8.1 [Requirement for simultaneous delivery] On the date and time that Equivalent Securities are required to be redelivered by the Borrower in accordance with the provisions of this Agreement the Lender shall simultaneously redeliver the Equivalent Collateral and repay any Cash Collateral held (in respect of the Equivalent Securities to be redelivered) to the Borrower. Neither Party shall be obliged to make delivery (or make a payment as the case may be) to the other unless it is satisfied that the other Party will make such delivery (or make an appropriate payment as the case may be) to it simultaneously. If it is not so satisfied (whether because an Event of Default has occurred in respect of the other Party or otherwise), it shall notify the other Party and, unless that other Party has made arrangements which are sufficient to assure full delivery (or the appropriate payment as the case may be) to the notifying Party, the notifying Party shall (provided it is itself in a position, and willing, to perform its own obligations) be entitled to withhold delivery (or payment, as the case may be) to the other Party.
8.2 [Netting following occurrence of Event of Default] If an Event of Default occurs in relation to either Party, the Parties' delivery and payment obligations (and any other obligations they have under this Agreement) shall be accelerated so as to require performance thereof at the time such Event of Default occurs (the date of which shall be the "Performance Date" for the purposes of this clause), and in such event:
(a) the Relevant Value of the Securities to be delivered (or payment to be made, as the case may be) by each Party shall be established in accordance with clause 8.3; and
(b) on the basis of the Relevant Values so established, an account shall be taken (as at the Performance Date) of what is due from each Party to the other and (on the basis that each Party's claim against the other in respect of delivery of Equivalent Securities or Equivalent Collateral or any cash payment equals the Relevant Value thereof) the sums due from one Party shall be set-off against the sums due from the other and only the balance of the account shall be payable (by the Party having the claim valued at the lower amount pursuant to the foregoing) and such balance shall be payable on the Performance Date.[5]
8.3 [Relevant Value] for the purposes of clause 8.2 the Relevant Value:
(a) of any cash payment obligation shall equal its par value (disregarding any amount taken into account under (b) or (c) below);
(b) of any Securities to be delivered by the Defaulting Party shall, subject to clause 8.4(b) and (c) below, equal the Offer Value thereof; and
(c) of any Securities to be delivered by the Defaulting Party shall, subject to clause 8.4(b) and (c) below, equal the Bid Value thereof.
8.4 [Bid Value/Offer Value]
(a) For the purposes of clause 8.3, but subject to (b) and (c) below, the Bid Value and Offer Value of any Securities shall be calculated as at the Close of Business in the most appropriate market for Securities of the relevant description (as determined by the Non-Defaulting Party) on the first Business Day following the Performance Date, or, if the relevant Event of Default occurs outside the normal business hours of such market, on the second Business Day following the Performance Date (the "Default Valuation Time").