History
The Company was incorporated as an Argentine limited liability corporation (sociedad anónima) in 1945 under the name Frigorífico La Pampa S.A. In 2003, the former business activities, which were limited to the ownership and operation of a warehouse building, were suspended. In 2005, the Company was acquired by the principals of Grupo EMES (formerly Grupo Dolphin), an Argentine private equity group, to serve as a corporate vehicle for its investments in Argentina. The name was changed first to Pampa Holding S.A., and subsequently to Pampa Energía S.A., given the Company’s focus on the energy industry.
Since this change, it begins a story highlighting one goal: to become one of leading energy companies in Argentina. The following timeline summarizes the Company’s milestones:
Commissioning to the Steam Turbine 01 (EBARTV01) for up to 260 MW, increased to 281 MW in April 2023. With the completion of the combined cycle, the total installed capacity of Ensenada Barragán Thermal Power Plant (CTEB) amounts to 848 MW.
Commissioning of 18 V-150 Vestas wind turbines of 4.5 MW each, reaching a total installed capacity of 81 MW.
Pampa reduces its capital stock in 20 million treasury shares under repurchase programs.

Pampa reduces its capital stock in 13 million treasury shares under repurchase programs.
Pampa exchanged US$407 million of its Corporate Bond (CB) maturing in 2023 with an interest rate of 7.375% for the issuance of a CB with final maturity in 2026 and interest rate of 9.5% (US$293 million) and cash (US$122 million).
Pampa Group has acquired 50% of the Wind Farm Engineer Mario Cebreiro, with a 100 MW capacity, reaching 100% of ownership.
Pampa reduces its capital stock in 3 million treasury shares under repurchase programs.
Pampa acquired 100% of Arauco II Wind Farm stage 1 and 2, with a 100 MW capacity.

Pampa reduces its capital stock in 152 million treasury shares under repurchase programs.
On June 30, 2021, took place the closing of the sale of controlling stake in Edenor, announced on December 28, 2020, transferring the Class A common share ownership representing 51% of the capital stock and votes of Edenor.
Pampa reduces its capital stock in 141 million treasury shares under repurchase programs.
Pampa reduces its capital stock in 57 million treasury shares under repurchase programs.

Pampa reduces its capital stock in 152 million treasury shares under repurchase programs.
Commissioning to the Steam Turbine 02 (GEBATV02) for 199 MW, which in addition to the capacity increase achieved at Genelba Thermal Power Plant (CTGEBA) during the month of June 2019, the project of closing to combined cycle of Genelba Plus reached a total capacity of 400 MW. With the completion of the new combined cycle, the total installed capacity of CTGEBA amounts to 1,243 MW, becoming the largest thermal power plant in the country.

Commercial commissioning of the Pampa Energía Wind Farm (‘PEPE’) II and III with an installed capacity of 53.2 MW each.
Pampa and YPF jointly acquired the Ensenada de Barragán thermal power plant with a power capacity of 560 MW and a project to close the cycle in order to increase its capacity to 840 MW.
Commercial commissioning to the Gas Turbine 04 for 188 MW and capacity increase of the already existing Gas Turbine 03, Genelba Plus, for additional 19 MW, as part of the Genelba Plus’s closing to combined cycle project.
Pampa places the Series 3 Corporate Bond (CB), which was dollar-denominated and bore interest at a fixed rate for a face value of US$300 million. The issuance price was 98.449% of the par value, at a 9.125% nominal fixed annual rate, yielding 9.375% and maturing in April 2029.

Pampa increases its capital stock in 102 million shares at AR$1 per share.
Commercial commissioning of the first Wind Farm Engineer Mario Cebreiro with a 100 MW capacity, which given the technology and size, it is also the first project to reach such milestone under Renovar 1 program.
Pampa increases its capital stock in 144 million shares at AR$1 per share and acquires the minority holdings of Petrolera Pampa, among other companies.
Pampa reduces its capital stock in 183 million treasury shares under repurchase programs.

Pampa places the Series 1 Corporate Bond (CB), which was dollar-denominated and bore interest at a fixed rate for a face value of US$750 million. The issuance price was 99.136% of the par value, at a 7.5% nominal fixed annual rate, yielding 7.625% and maturing 10 years as from issuance.
Expansion of a 100 MW capacity at Central Térmica Loma de la Lata
Commercial commissioning of Central Térmica Parque Industrial Pilar with a 100 MW capacity
The Central Térmica Ingeniero White with a 100 MW capacity started commissioning.

Pampa acquires the controlling stake of Petrobras Argentina, thus becoming one of the leading energy companies in Argentina. As a condition precedent, Petrobras Argentina issued Corporate Bond (CB) for US$500 million, maturing in 7 years with an interest rate of 7.375% mainly to refinance Series S CB for US$300 million.
Pampa increases its capital stock in 141 million shares at AR$1 per share.
Pampa and Petrobras Argentina operate as a single entity, setting the effective date of merger as of November 1, 2016.

Pampa increases its capital stock in 382 million shares at AR$1 per share.

Petrolera increases its capital stock by 59.7 million common shares at AR$1.6 per share.

Settlement of the defaulted debt, which was acquired in January 2011, and designation of Pampa Energía as the CIESA Trust’s beneficiary, which holds 40% of CIESA, the controlling company of TGS.

Electricity to be sold as PPA contract with CAMMESA.

Pampa reduces its capital stock in 212 million treasury shares under repurchase programs.

Under the ticker ‘PAM’ as sponsored ADSs (American Depositary Shares) level II program.

The first unit under the Energía Plus scheme.
More than 200 million shares were bought back, being later cancelled in the capital stock.

Pampa increases its capital stock in 600 million shares at AR$2.23 per share.
Pampa acquires controlling stake of Edenor through a share swap. Pampa increases its capital stock in 480 million shares at AR$2.61 per share to carry out the exchange.

Pampa increases its capital stock in 140 million shares at AR$1 per share.
Pampa increases its capital stock in 300 million shares at AR$1.15 per share.

Senior members of Grupo EMES (formerly known as Grupo Dolphin) acquired Pampa Energía to channel their acquisitions in the energy sector.
