Any notices, bills, invoices, or reports required by this Agreement shall be deemed received on (a) the day of delivery if delivered by hand during receiving party’s regular business hours or by facsimile before or during receiving party’s regular business hours; or (b) on the second business day following deposit in the United States mail, postage prepaid, to the addresses heretofore below, or to such other addresses as the parties may, from time to time, designate in writing pursuant to the provisions of this section.