Pampa Energía S A : Call for meeting, agenda and Board's proposal for the Meeting on September 30, 2021

Call to General Ordinary and Extraordinary Shareholders' Meeting to be held on September 30, 2021.

Pampa Energía S.A. calls a General Ordinary and Extraordinary Shareholders' Meeting of the Company to be held on September 30, 2021, at 11 a.m., at the first call, and in the case of the General Ordinary Shareholders' Meeting, at 12 p.m. a second call to be held virtually according to the terms of the article 30 of the Company's bylaws by Microsoft Teams to deal with the following Agenda:

1. Appointment of shareholders to approve and sign the Meeting minutes.
2. Appointment of two Alternate Directors.
3. Appointment of one Alternate member of the Supervisory Committee.
4. Consideration of stock capital reduction of up to $139,891,965 and cancellation of up to 139,891,965 ordinary, book-entry shares of $1 par value each and entitled to 1 vote per share, held in the Company and its subsidiary's treasury. (upon dealing with this item, the Meeting will qualify as an Extraordinary Shareholders' Meeting).
5. Consideration of (i) the creation of a new Company's Global Notes Program for an amount of up to US$ 2,000,000,000 (U.S. Dollars two billion) (or the equivalent thereof in other currencies or value units) that enables the issuance of non-convertible and/or convertible notes; and (ii) the delegation to one or more members of the Board of Directors and management of the Company of the most ample powers in relation to what is considered in the current item of the Agenda.
6. Grant of authorizations to carry out the proceedings and filings necessary to obtain the relevant registrations.

NOTE 1: Shareholders shall send the relevant certificates evidencing the balance of their book-entry accounts, issued to such effect by Caja de Valores S.A., to Maipú 1, Ground Floor, City of Buenos Aires or by e-mail to [e-mail], on any business day from 10.00 a.m. to 6.00

p.m. until and including September 24, 2021. NOTE 2: According to the provisions of the Regulations of the Argentine Securities Commission, as amended in 2013, when enrolling to participate at the Meeting, the Shareholder shall report the following data: first and last name or complete corporate name; type and personal identity document number in the case of natural persons or registration data in the case of legal entities, expressly indicating the Registry where they are registered with and its jurisdiction, domicile and type of address and phone and e-mail. The same information must be filed by any person who attends the Meeting as representative of a shareholder. NOTE 3: The Meeting will be virtually celebrated by Microsoft Teams that guarantees: 1. Accessibility to all registered shareholders, with voice and vote; 2. Simultaneous transmission of sound, images and words thought the Meeting; 3. The recording of the Meeting with digital support. We will send the instructions to connect to the Meeting to those who registered to the e-mail informed. Proxys must be sent FIVE (5) working days in advance of the Meeting to our e-mail informed in NOTE 1. NOTE 4: Shareholders are hereby reminded that, following the Regulations of the Argentine Securities Commission, as amended in 2013, in the event of shareholders that are entities organized abroad, (i) information shall be given about the ultimate beneficial owners of the shares that comprise the capital stock of the foreign Company and the number of shares that they shall vote, stating first and last name, nationality, actual domicile, date of birth, national identity document or passport number, taxpayer identification number (CUIT), worker's identification number (CUIL) or any other form of tax identification and occupation, and (ii) proof shall be submitted of their registration under the terms of Sections 118 or 123 of the Business Companies Law No. 19,550, as amended, and the representative appointed to vote at the Shareholders' Meeting shall be duly registered with the relevant Public Registry or provide evidence of its capacity as duly appointed proxy. NOTE 5: In addition, if the Shareholder is a trust or any other similar entity, or a foundation or any other similar entity, whether public or private, it shall be required to comply with Section 26, Chapter II, Title II of the Regulations of the Argentine Securities Commission, as amended in 2013. NOTE 6: The Shareholders are hereby required to be present at least 15 minutes in advance of the time scheduled for holding the Meeting.

Board proposals regarding the various items on the Agenda for the General Ordinary and Extraordinary Shareholders' Meeting called for September 30, 2021.

The Board of Directors resolved to put forward to the Shareholders the following proposals in respect of the items to be dealt with at the General Ordinary and Extraordinary Shareholders' Meeting to be held on September 30, 2021:

1. Regarding the first Agenda item, i.e., "Appointment of shareholders to approve and sign the Meeting minutes," the Board of Directors proposed that the Shareholders' Meeting appoint the representatives of JP Morgan and the Sustainability Guaranty Fund under the charge of the Social Security Office (Administración Nacional de la Seguridad Social - ANSES) to sign the minutes.
2. As concerns the second Agenda item, i.e., "Appointment of two Alternate Directors.", taking into account that Haroldo Adrián Montagu and Victoria Hitce resigned to their positions as Alternate Directors, the Board of Directors proposed, by unanimous vote, to appoint Maximiliano Sebastián Ramírez in replacement of Haroldo Adrián Montagu and María Agustina Montes in replacement of Victoria Hitce, until completing their terms.
3. As concerns the third Agenda item, i.e., "Appointment of one Alternate member of the Supervisory Committee" the Board of Directors proposed, by unanimous vote, that the Shareholders' Meeting elect Germán Wetzler Malbrán as an alternate members of the Supervisory Committee in order to fill the current vacant position, until December 30, 2023.
4. As concerns the fourth Agenda item, i.e., "Consideration of reduction of stock capital of up to $139,891,965 and cancellation of up to 139,891,965 ordinary, book- entry shares of $1 par value each and entitled to 1 vote per share, held in the

Company's and its subsidiary's treasuries (upon dealing with this item, the meeting will qualify as an Extraordinary Shareholders' Meeting)" the Board of Directors resolved to propose that the Shareholders' Meeting approve the capital stock reduction of up to $139,891,965 through the cancellation of up to 139,891,965 ordinary, book-entryshares of $1 par value each and entitled to 1 vote per share, held in the Company's and its subsidiaries treasuries as of the date of the Shareholders' Meeting.

5. As concerns the fifth Agenda item, i.e., "Consideration of (i) the creation of a new Company's Global Notes Program for an amount of up to US$ 2,000,000,000 (U.S. Dollars two billion) (or the equivalent thereof in other currencies or value units) that enables the issuance of non-convertibleand/or convertible notes; and (ii) the delegation to one or more members of the Board of Directors and management of the Company of the most ample powers in relation to what is considered in the current item of the Agenda." the Board of Directors unanimously resolved to propose that the Meeting of Shareholders approve (i) the creation of a new Company's Global Notes Program for an amount of up to US$ 2,000,000,000 (U.S. Dollars two billion) (or the equivalent thereof in other currencies or value units) that enables the issuance of non-convertible and/or convertible notes; and (ii) delegate to the Board of Directors the most ample powers to, without any subsequent ratification by a Meeting of Shareholders, (i) determine all the terms and conditions of the Notes Program (including, without limitation, the time, price, form and terms of payment of the Notes, currency and use of proceeds), of the frequent issuer prospectus and of the different classes and/or series of notes to be issued under the above-mentioned documents, the Board being also able to modify the terms and conditions approved by the Meeting, to the extent permitted by the applicable law; (ii) approve, enter into, execute and/or subscribe any agreement, contract, document, instrument and/or security in relation to the Notes Program, the frequent issuer prospectus, the renewal or extension of the term of this documents, and/or the issuance of the different classes and/or series of notes thereunder, including without limitation any prospectus, supplement, contract or document, a firm placement

agreement with a broker, with the capacity to file or conduct any applications, proceedings and/or steps with the Argentine Securities Commission and/or Mercado de Valores, the Buenos Aires Stock Exchange, Mercado Abierto Electrónico, the Securities and Exchange Commission or other stock exchanges or securities markets, as determined from time to time by the Board of Directors or any persons authorized by the Board of Directors in relation to the Notes Program, the frequent issuer prospectus and/or the notes issued thereunder; and (iii) subdelegate to one or more of its members and/or one or more persons designated by them from time to time all the powers and authority referred to in items (i) and (ii) above. The subdelegates are authorized to carry out all acts and diligences that are directly or indirectly related with what is considered in this item of the Agenda, being the above-mentioned capacities just examples and not limitations.

6. As concerns the sixth Agenda item, i.e. "Grant of authorizations to carry out the proceedings and filings necessary to obtain the relevant registrations," the Board of Directors proposed, by unanimous vote, that the Shareholders' Meeting grant the relevant authorizations to Gabriel Cohen, Patricio Benegas, Daniel Hanna, Julieta Castagna, Francisca Turri, María Carolina Sigwald, Gerardo Carlos Paz, María Agustina Montes, Maite Zornoza, María Eugenia Sanchez Nuin, Juan Manuel Recio, Débora Gisele Tortosa Chavez, Mabel Silvia Beratta, Diego Alexi Vaca Diez Eguez, Luis Agustín León Longombardo, María José Maure Bruno, Micaela Saieg, Martín Ezequiel Gardella, Paula María Devotto, Fabiana Marcela Vidal, Alejandra Paulina Brasesco, Fernando Nicolás Villarruel, Mauricio Penta, Martín García Arango, Fernando Rizzi, Vanesa Russo, Diego Martín Salaverri, Roberto Lizondo, Martín Fernández Dussaut, Tomás Arnaude, Pablo Fernández Pujadas, Marcos Linares, Josefina Ryberg, Natalia Ostropolsky, Lucía De Miceu, Guido Aiassa, Fiamma Toto Ruá, Eugenia Guerricagoitia, Delfina Meccia, María Belén Paoletta, Juan Ignacio Ríos Escobar, Camila Mindlin, Carolina Colombo, Esperanza Niez, Ailén Crespo Azconzábal, Sofía Seoane and/or Joaquina Paoloni, in order to register the resolutions adopted by the Shareholders' Meeting and to carry out such other dealings as may be necessary before the relevant entities.