Perito Moreno Gas Pipeline expansion (ex-GPNK) - TGS
Why this project exists: the expansion of the Perito Moreno Gas Pipeline (ex-GPNK) by +14 MMm3/d of capacity (confirmed in Res. 676/2026) is meant to evacuate the incremental gas from a Vaca Muerta running at full capacity - the production the investment regime is scaling has to get out one way or another. Transport demand is real and measured: the open season received bids for >32 MMm3/d, more than double what is being built. Operational before the 2027 winter; commitment of 20% to local suppliers and 40% of the amount in the first 2 years. La Pampa captures the investment because the pipeline crosses it (spillover effect), not because it joined the RIGI: the regime works cross provincial borders, no matter who produces the gas.
How to supply it
what we have for a supplier, and how to request it
What we have on this project for a supplier
Who decides the purchase, who you invoice and where a new supplier registers.
Which lines each phase buys and when the window opens for each one.
Who they are, what each one does and how to sell to them.
All of this is surveyed and verified against its source. Crossed with what you sell —which of them your products suit, how to reach it and when— it is in your company report. Request the report
We cross what you manufacture or do against the 2 phases of this project and tell you which ones you fit into and when each one buys. Two pages, with the evidence behind them.
Where my company can get inThe project
what it is, the route, the owners, the works and the contractors
Who owns it
Transportadora de Gas del Sur (TGS) verif May 13, 2026 ↗
The works, milestone by milestone
Estimated start of operation declared by TGS SD1. The contract also sets April 30, 2027 as the deadline for full commissioning.
Deadline to certify the minimum investment amount in eligible assets, set by article 4 of the ruling.
Second round of the open season: bids for more than 100 million cubic metres per day for the 9 million still available. The first round had already awarded 5 million m³/day, paid in full up front.
SACDE publishes the scope of its contract: eight works running at once across some 1,000 kilometres and three provinces, and automatic welding of the 20-kilometre 36-inch loop with more than twenty welders trained at its own welding school.
The Ministry of Economy approves the accession through Resolución 676/2026, signed by Luis Caputo.
The RIGI Project Evaluation Committee meets and recommends approval, and TGS SD1 completes its filing: this is the accession date and the date the regime's rights are acquired.
The first open season draws requests for more than 32 million cubic metres per day, nearly triple what was offered at that stage. The expansion phase puts an additional 14 million m³/day in play: 12 to Greater Buenos Aires and 2 to the Bahía Blanca hub.
TGS announces the start of works and launches the two open seasons for capacity: one for 14 million cubic metres a day on the Perito Moreno, between Tratayén and Salliqueló, and another for 12 million on its regulated system, from Salliqueló to Greater Buenos Aires.
TGS issues an international bond of USD 500 million over ten years, with a 7.75 % coupon and a final financing cost of 8 %; it receives bids for more than USD 1,300 million.
Declared start date of the eighteen-month construction period, as TGS SD1 filed it with the RIGI. It runs six months ahead of the ruling that approves the accession.
Energía Argentina's board awards the work to TGS through Resolución EA N° 004/2025, following an evaluation report recommending the award. The financial proposal opened on September 22 came to USD 0.69 per million BTU, net of VAT.
Bid opening: only one is submitted, from TGS S.A.
ENARSA publishes National and International Public Tender GPM N° 01/2025: execution and financing of the Section I expansion by 14 million cubic metres a day, with an option for up to 6 more, plus operation and maintenance of the infrastructure. The tender documents are free and the bid bond is USD 5,000,000.
Decreto 1060/2024 declares TGS's private initiative to be of national public interest and folds the works into ENARSA's concession.
TGS files with the Ministerio de Economía the private initiative «Incremento de la capacidad de Transporte Gas Natural, en la ruta Tratayén – Litoral Argentino», file EX-2024-64657124-APN-DGDA#MEC. It supplements it on September 23 and on November 8 and 15; on the 15th it accepts that, if it is not awarded the work and the State or ENARSA consider it necessary, its operation and maintenance contract with ENARSA may be terminated.
What it leaves in La Pampa
jobs, works, taxes, promises and the outlook
The works that stay behind
The infrastructure that stays standing once the works end, with its size and its source.
New compressor plant at Casa de Piedra
PowerLa Pampa and the regulated transport system: the plant stays in the province once the works end, and the province did not join the regime — it captures the investment because the pipeline crosses it.
«installation of three new plants along the pipeline route» at «Casa de Piedra, Doblas and Chacharramendi, all of them in the Province of La Pampa».
New compressor plant at Doblas
PowerLa Pampa and the regulated transport system.
Second of the three new plants along the route, «all of them in the Province of La Pampa».
New compressor plant at Chacharamendi
PowerLa Pampa and the regulated transport system. ⚠️ Of the three sites, this one was already a TGS operating base: the company's new physical presence in the province is Casa de Piedra and Doblas.
Third of the three new plants along the route, «all of them in the Province of La Pampa».
Parallel TGS work on its regulated system: a line parallel to the trunk and compression on Neuba III (not part of the Perito Moreno expansion)
Powerwith an extra 15,000 HP of compression; 12 million m³ a day of additional capacity
TGS's regulated transport system: it is what allows the additional gas reaching Salliqueló to supply Greater Buenos Aires.
In parallel and outside the Perito Moreno expansion, the company expands its own regulated transport system by 12 million cubic metres a day, with the «installation of 20 km of pipeline parallel to the trunk line and 15,000 additional HP on the Neuba III pipeline», so that the gas reaching Salliqueló can supply Greater Buenos Aires. The Perito Moreno works add «14 MMm3/d» and «will be in service by the winter of 2027».
- What it already pays in taxes and royalties — We have not broken down this project’s local fiscal contribution: the primary source that sets each item still has to be opened, and an act of the State is not published on press backing.
- Who promised what — We have not surveyed the public promises about this project. A dated, verifiable commitment with its source closes them.
What could stall it
risks and how to track them
- What could stall it — We have not documented this project’s risks. An identifiable vector with its source closes them.
- How to tell whether it is advancing — We have not defined this project’s indicators: what observable fact marks its progress still has to be identified.
How we verified this
the act, the gaps and the sources
The RIGI act, in detail
EX-2025-119427774- -APN-SCEYM#MEC verif May 13, 2026 ↗
Apr 30, 2026 verif May 13, 2026 ↗
The act’s articles, in detail
3 facts on the commitment
20 % of the amount earmarked for suppliers that goes to LOCAL suppliers verif May 13, 2026 ↗
The entire investment amount (not narrowed to the amount earmarked for suppliers) verif May 13, 2026 ↗
Transportadora de Gas del Sur S.A. Sucursal Dedicada 1 (TGS SD1), tax ID 30-71881250-6, registered at Cecilia Grierson 355, Floor 26, Buenos Aires City. verif May 13, 2026 ↗
What we could not confirm
There are 2 in this project. Each says why it could not be confirmed and what it would take to close it.
H-01How many people the construction employs and how many stay working in operation+
No RIGI admission resolution publishes the figure: the seventeen that are published state that the company «provided the estimate of direct and indirect employment of the Project with local integration» and do not transcribe it. The official RIGI portal publishes a single figure that adds direct and indirect jobs together and does not separate the two stages, and mixing them is exactly the error the `empleo` field exists to prevent.
H-02How much of this work La Pampa can capture, which is where the three new compressor stations go+
The owner publishes where its suppliers are, and La Pampa appears on none of its three lists: works and services in the metropolitan area, Buenos Aires — chiefly Bahía Blanca —, Neuquén, Río Negro, Chubut and Santa Cruz; materials in the metropolitan area, Neuquén and Bahía Blanca; machine spares in the United States, Germany, Italy and Russia. And where it says it is expanding the network is Neuquén, «en función del avance de nuevos proyectos en la región de Vaca Muerta». ⇒ there is a gap between where the works are built and where the buying happens, but no published figure measures it in pesos: the ruling's local-content commitment is 20 % of the total investment and it is national, not provincial.
We look at what your company does and tell you whether we see a sign that it fits this market, with the evidence behind it. If we do not see one, we say so too and name the condition that would change it. One page as a dated PDF, within 48 working hours.
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