definiens: ( as defined in the USBioEnergy ESPP ) or new offering periods commencing following the date of this Agreement under the US BioEnergyESPP, ( iv ) each offering period in progress under the US BioEnergy ESPP on the date of this Agreement ( each, an ) shall end immediately prior to the Effective Time or, if earlier, on the last day of such ESPPOffering Period, and each participant under the US BioEnergy ESPP possessing purchase rights for such ESPPOffering Period shall be permitted to purchase, to the extent such purchase is funded through payroll deductionsmade under the US BioEnergy ESPP, the number of shares of US BioEnergy Common Stock contemplated by suchpurchase rights and ( v ) following the purchase of US BioEnergy Common Stock with respect to such ESPP OfferingPeriods, the US BioEnergy ESPP shall terminate