María Carolina Sigwald

Petrobras Hispano Argentina SA engages in the exploration and production of oil and gas. The company was founded on December 15, 2000 and is headquartered in Madrid, Spain.

Compañía Inversora en Transmisión Eléctrica Citelec SA invests in power sector companies. Its investment companies portfolio includes Energía Eléctrica en Alta Tensión Transener SA. The company is headquartered in Buenos Aires, Argentina.

Chadbourne & Parke LLP engages in the provision of legal services. It provides counsel to areas such as antitrust and trade regulations, employment, intellectual property, leasing, litigation, pro bono, real estate, and tax. The company was founded in 1902 and is headquartered in New York, NY.

Pampa Cogeneracion SA operates power plants. The private company is based in Buenos Aires, Argentina.

Empresa de Transporte de Energía Eléctrica por Distribución, also known as Transba, is based in Buenos Aires, AR and is the concessionaire of the electric power transport service by trunk distribution in the province of Buenos Aires. Transba provides maintenance and operation services for the 220 kv, 132 kv, and 66 kv network of the province, excluding facilities located within the jurisdiction of Edenor, Edesur, and Edelap. In addition to maintaining their own lines and stations, Transba also provides similar services for third-party facilities throughout the country. The Argentinean company's teams of professionals provide complementary services such as line and stations engineering, preparation of tender specifications, special studies, optimization of resources from transmission companies, among others. Transba also performs the maintenance of transforming stations of 500, 220, and 132 kv, both of its networks and the property of third parties. The joint venture company has extensive experience in the construction and management of transmission works and supervise all extensions of the system of the province of Buenos Aires. The company's work methodology relies on several factors that are fundamental in predictive and preventive maintenance, but also corrective. The CEO of the company is Carlos García Pereira.

Part of Pampa Energía SA, Pampa Energía Bolivia SA is a company based in La Paz, Bolivia (Plurinational State of). The Bolivian company engages in oil and gas exploration.

Comercializadora e Inversora SA provides investment management services. Its service portfolio includes shares. The company is headquartered in Buenos Aires, Argentina.

Compania de Inversiones de Energia SA operates as a holding company with interests in the distribution of natural gas and hydrocarbon fuels. The company was founded in 1999 and is headquartered in Buenos Aires, Argentina.

Part of Pampa Energía SA, Vientos de Arauco Renovables SAU operates renewable energy projects. Vientos de Arauco Renovables SAU was acquired by Pampa Energía SA from Parque Eólico Arauco SAPEM on December 16, 2022 for $180.24 million.