Carnival Corporation today announced the completion of the previously announced private placement of its 20-year zero-coupon convertible notes, which resulted in gross proceeds to the company of $400 million. In connection with the offering, the placement agent has also exercised in full its over-allotment option to purchase additional 20-year zero-coupon convertible notes, which will result in gross proceeds to the company of $100 million. The purchase of the additional notes is expected to close on October 26, 2001. Net proceeds from the offering will be used to repay approximately $160 million of existing bank indebtedness maturing in November 2001…