María Carolina Sigwald

Telefónica de Argentina SA is a telecommunications. It is engaged in offering telephone-related services such as PCS, basic telephone service, local telephony, domestic long-distance, domestic long-distance, international long-distance, public telephone, internet access, data transmission service, value-added service and cellular services. The company was founded on April 23, 1990 and is headquartered in Buenos Aires, Argentina.

Petrobras Argentina SA engages in the development and exploration of oil and gas properties. It operates through the following business segments: Generation, Distribution of Energy, Oil and Gas, Refining and Distribution, Petrochemicals, and Holding and Other Business. The Generation segment engages in generation through the following businesses: Central Térmica Genelba, Central Térmica Loma la Lata, Central Térmica Ingeniero White, Central Térmica Güemes, Central Térmica Piquirenda, Central Térmica Parque Pilar, EcoEnergía, Hidroeléctrica Nihuiles and Hidroeléctrica Diamante, HPPL, Corti, Pampa Energia WPP and De la Bahi WPP, and Enecor. The Distribution of Energy segment engages in the electricity distribution through its subsidiary Edenor. The Oil and Gas segment engages in oil and gas business directly through its investments in Oleoductos del Valle S.A. The Refining and Distribution segment engages in the refining and distribution business through its storage facility in Dock-Sud and Refinor. The Petrochemicals segment operates through its styrenics operations and the catalytic reformer operations conducted in its Argentine plants. The Holding and Other Business segment holds interest in Petrobras Hispano Argentina S.A and Transener. The company was founded in 1946 and 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.

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.

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.

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.