Legal counsel to MSU Energy S.A., as Issuer, in the issuance of Senior Notes worth U$S250,300,000 with public offering, and due 2024. The offer was addressed to the Argentine and International Market under the exemptions provided in the US Securities Act of 1933, as amended. The Notes are listed on Bolsas y Mercados Argentinos S.A., and the Mercado Abierto Electrónico S.A. J.P. Morgan Securities LLC acted as Initial Purchaser; and Puente Hnos. S.A., as Local Placement Agent; Citibank, N.A. acted as Trustee, Paying Agent, Registrar and Transfer Agent; and the Argentine branch of Citibank, N.A. acted as Trustee in Argentina, Co-Registrar, Paying and Transfer Agent and Argentine Collateral Agent.