![](https://capedge.com/proxy/6-K/0001449877-16-000044/logopesa.jpg)
Buenos Aires, September 7, 2016
Messrs.
COMISIÓN NACIONAL
DE VALORES
MERCADO DE VALORES
DE BUENOS AIRES
Re.: Material Fact. Tender Offer – Price
Adjustment
Dear Sirs:
In my capacity as Responsible of Market Relations of Petrobras Argentina S.A. (the “Company”), this is to inform Comisión Nacional de Valores and Mercado de Valores de Buenos Aires that our controlling company, Pampa Energía S.A. (“Pampa”), sent a Notice (a copy of which is attached hereto) to the Company to inform that it decided to offer a new price for the Tender Offer for the Company’s shares which was reported to the Company on May 20, 2016 and updated by means of the Material Fact Notice published by Pampa on July 27, 2016 (the “New Price”).
Sincerely yours.
María Agustina Montes
Responsible of Market Relations
![](https://capedge.com/proxy/6-K/0001449877-16-000044/logopampa.jpg)
Buenos Aires, September 7, 2016
Messrs.
PETROBRAS ARGENTINA S.A.
Maipú 1, Piso 22°
Ciudad Autónoma de Buenos Aires
Re.: Mandatory Tender Offer and Voluntary
Exchange Offer.
Dear Sirs:
In my capacity as Vice President of Pampa Energía S.A. (the “Company”), this is to inform you that at the Board of Directors’ Meeting held on September 7, 2016 the Company decided to offer a new price for the tender offer for Petrobras Argentina S.A.’s shares which was reported to you on May 20, 2016 and updated by means of the material fact notice published by the Company on July 27, 2016 (the “New Price”).
A copy of the New Price notice sent simultaneously to Comisión Nacional de Valores is attached hereto.
Sincerely yours,
______________________
Gustavo Mariani
Vice President
![](https://capedge.com/proxy/6-K/0001449877-16-000044/logopampa.jpg)
Buenos Aires, September 7, 2016
COMISIÓN NACIONAL
DE VALORES
MERCADO DE VALORES
DE BUENOS AIRES
Ref.: Relevant Event. Mandatory Cash Tender Offer and Public Offering for the Voluntary Exchange of Shares – Price Adjustment.
Dear Sirs:
I write to the Comisión Nacional de Valores and Mercado de Valores de Buenos Aires in my capacity as Responsible of Market Relations of Pampa Energía S.A. (‘Pampa’ or the ‘Company’) in connection with the relevant events published on May 20, 2016 and July 27, 2016 and the announcement for the Offer published on the same date (the ‘Announcement’ ). To that regard, it is informed that on the date hereof, the Board of Directors of the Company decided, to speed up and facilitate the procedure with the regulatory body and to move forward in a swift way that will benefit both the shareholders of Petrobras Argentina S.A. and the shareholders of the Company, to increase the price to be offered in the Mandatory Cash Tender Offer to be made for the shares of Petrobras Argentina S.A.
Therefore, and subject to the approval of the regulatory body, Pampa will offer the shareholders of Petrobras Argentina S.A. a price per share equivalent to US$0.6825 that, converted into Argentine Pesos at the official exchange rate of the closing of the transaction, amounts to AR$10.3735.
Sincerely,
María Agustina Montes
Responsible of Market Relations