Legal counsel to Puente Hnos. S.A., as placement agent in the issuance of Province of Chubut’s Series LI Treasury Notes. The Treasury Notes Series LI are secured by certain rights of the Province of Chubut to receive amounts under the federal tax co-participation regime and were issued in two classes amounting to AR$ 381,400,000. Class 1 has a fixed annual nominal rate equivalent to 34.75%, and is due on August, 24 2020. Class 2 has a fixed annual nominal rate equivalent to 35.50%, and is due on October, 23 2020.