Atlantica Sustainable Infrastructure plc announced that it closed May 18, as planned, the previously announced offering of $400,000,000 in aggregate principal amount of green senior notes due 2028 (the “Green Notes”), guaranteed by certain subsidiaries of Atlantica. The Green Notes and related guarantees were only offered to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933 (the “Securities Act”), and non-U.S. persons in accordance with Regulation S under the Securities Act. The Green Notes and related guarantees have not been registered under the Securities Act or the securities laws of any other jurisdiction and may not be offered or sold in the United States or to U.S. persons absent registration or an applicable exemption from the registration requirements. This notice is issued pursuant to Rule 135c under the Securities Act, and does not constitute an offer to sell, nor a solicitation for an offer to purchase, the Green Notes.