A note said this, adding that the gross annual nominal interest rate was set at 4.30 percent.

The bond offering, which was initially scheduled to end on Feb. 3, was closed early on Jan. 20 due to the high demand received from Italian investors.

Applications were received from more than 300,000 investors with a total demand of more than 10 billion, "an Italian record for a single tranche corporate bond issue aimed at retail," the note stressed.

The 5-year bonds will be issued on Feb. 10 in the amount of 2 billion euros at a price equal to 100 percent of their face value. The bonds will pay an annual gross coupon of 4.30 percent, which will remain unchanged until maturity if sustainability targets related to installed capacity for renewable electricity generation and Net Carbon Footprint Upstream (Scope 1 and 2) are met. In case of failure to achieve even one of the two targets, the interest rate related to the coupon payable on the maturity date (February 10, 2028) will be increased by 0.50 percent.

(Sabina Suzzi, editing Claudia Cristoferi)