All notices under this Agreement must be in writing and will be deemed properly given (i) on the next business day after deposit for overnight delivery by courier, (ii) 3 business days after mailing, by registered or certified mail, return receipt requested, or (iii) upon confirmation of transmission by facsimile or e-mail of a PDF document if sent by 5 p.m. Pacific time on a business day and otherwise on the next business day, in each case to the applicable address set forth in the Purchase Agreement.