Transportadora de Gas del Sur S.A. Overview
tgs is Argentina's largest natural-gas transmission company and, by its own description, the largest gas-pipeline operator in Latin America. Its 9,248 km regulated system (Neuba I, Neuba II, San Martín and connecting lines) carries roughly 60–61% of the gas consumed in Argentina. It has about 90 MMm3/d of firm contracted capacity under a public-service licence now extended to 2047.
Around this regulated, peso-tariff core, tgs has built two US-dollar businesses. The first is the General Cerri complex in Bahía Blanca, Argentina's second-largest gas-liquids processor (47 MMm3/d inlet capacity, about 1.1 million tonnes per year of ethane, LPG and natural gasoline). The second is a fast-growing Vaca Muerta midstream platform: 183 km of gathering pipelines and the 28 MMm3/d Tratayén conditioning plant.
The company is entering its largest-ever investment cycle. It is executing a USD 780m+ expansion of the Perito Moreno pipeline corridor and a USD 3.0bn integrated NGL export project (FID taken in July 2026). Both aim to turn tgs into the critical evacuation and value-uplift infrastructure for Vaca Muerta.
Company's own description
In its earnings releases and the 2025 Form 20-F press release (22 April 2026), tgs describes itself as follows:
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the Argentine leader in natural-gas transportation, moving about 60% of national gas consumption through more than 5,700 miles of pipelines;
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one of the country's main natural-gas processors;
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positioned, through its Vaca Muerta infrastructure investments, as one of Argentina's leading midstream companies.
The September 2026 Investor Presentation frames tgs as the backbone of a booming Argentine natural-gas industry, organized around three value-chain activities:
Transportation: (regulated, peso revenues);
Liquids: (production and commercialization of propane, butane, ethane and natural gasoline);
Midstream: (gathering, treatment, compression, pipelines, integrity, engineering, O&M, special services and telecommunications), with non-regulated, US-dollar revenues.
Business model and revenue model
| Revenue type | Segment | Pricing / currency | Contract basis | Share of revenue LTM Jun-26 (US$ basis) |
|---|---|---|---|---|
| Regulated transportation tariffs (fee-for-capacity) | Natural Gas Transportation | Peso tariffs set by the regulator (ENARGAS, now ENReGE); monthly indexation by wholesale/consumer price indices since the 2025 RQT | Firm ship-or-pay capacity contracts (firm service about 78% of segment revenue, LTM); interruptible, exchange and displacement, and access-and-use charges | About 38% (US$503m of US$1,333m) |
| Commodity processing and sales | Liquids Production & Commercialization | US-dollar-linked: international propane/butane/natural-gasoline prices (exports), Mont Belvieu-related and regulated domestic LPG prices, and ethane contract pricing with PBB Polisur (Dow) | Ethane sold 100% to PBB Polisur (Dow) under a long-term contract with take-or-pay elements; LPG 47% domestic / 53% export (2025); natural gasoline 100% export | About 42% (US$562m) |
| Fee-based midstream services | Midstream (and Telecommunications) | US-dollar fees | Firm and interruptible gathering, transport and conditioning contracts with Vaca Muerta producers; O&M contract for ENARSA's Perito Moreno pipeline (GPM); "Integra" integrated services; Telcosur telecom | About 20% (US$269m) |
tgs earns revenue in three structurally different ways:
There is no subscription or licensing revenue in the conventional sense. The model blends a utility-like annuity (regulated transmission), a commodity spread business (liquids, where gas purchased as feedstock is the main cost driver), and a contracted fee-based infrastructure business (midstream).
Value-chain position
tgs sits between upstream producers and downstream consumers:
Upstream interface: gathering, conditioning and compression at Tratayén (Neuquén) for producers including YPF, Tecpetrol, Pampa Energía, Pluspetrol, Chevron, Shell, TotalEnergies, Vista, Pan American Energy and ExxonMobil, whose blocks are mapped on tgs' Vaca Muerta footprint.
Trunk transmission: from the Neuquina and Austral basins to Greater Buenos Aires, the Litoral and Bahía Blanca.
Processing: at General Cerri, extracting liquids from the rich gas stream that flows past Bahía Blanca, then storing and dispatching from Puerto Galván.
Third-party asset operation: O&M of ENARSA's 573 km Perito Moreno pipeline.
Customer types and end-markets
Transportation: gas distribution companies (MetroGAS, Camuzzi Gas Pampeana, Naturgy BAN, Camuzzi Gas del Sur and others), CAMMESA (the wholesale power-market administrator), thermal power plants, industrial users and traders.
Liquids: Dow's PBB Polisur petrochemical complex (ethane); domestic LPG distributors and fractionators; international LPG and naphtha/natural-gasoline buyers (seaborne exports from Bahía Blanca).
Midstream: Vaca Muerta producers; ENARSA (GPM O&M).
End-market gas demand (LTM Jun-26, 104 MMm3/d, per ENARGAS data cited by tgs) splits as follows: power plants 33%, industry 29%, residential 27%, CNG 5%, other 6%.
Independent characterization
tgs is best understood as a hybrid regulated utility / midstream growth company whose earnings mix has swung with Argentine macro-policy.
When tariffs were frozen (2019–2023), the dollar-linked liquids business carried the company: liquids EBITDA was US$222m in both 2021 and 2022, against transportation EBITDA of only US$112m and US$107m. Tariff normalization changed the mix sharply. It began with the transitional increases of 2022–2023, then the roughly 675% increase of April 2024, and then the 2025 five-year tariff review (RQT). Transportation EBITDA rose to US$335m in 2025, back to a dominant contribution.
Midstream is the structural growth leg. Its EBITDA grew from US$20m (2019) to US$166m (2025). The two committed megaprojects (GPM expansion and NGLs) would roughly double the asset base by 2030. The company is effectively converting a cash-rich, low-leverage balance sheet (net cash at end-2025 and mid-2026) into a growth platform, while keeping a covenant headroom of Net Debt/EBITDA below 3.5x.
Strategy
Stated strategic themes (FY2025 20-F, 2026 investor presentations and earnings calls)
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Be the backbone of Argentina's natural-gas boom: expand trunk capacity to evacuate Vaca Muerta gas and replace LNG and diesel imports.
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Grow the US-dollar midstream business: "first midstreamer" in Vaca Muerta. Conditioning capacity was expanded in step with basin development from 2019 to 2024.
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Capture NGL value from associated gas: relieve the processing bottleneck that could cap oil growth. Rich gas carries liquids worth more per MMBtu, and the project fits Argentina's export-led energy policy and the RIGI incentive regime.
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Financial discipline: use a net-cash balance sheet to re-leverage for growth while keeping net debt/EBITDA below the 3.5x covenant ceiling. Criteria reports management projecting leverage to stay below that maximum even at the investment peak (2028–2029).
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ESG plan: reduce GHG emissions, improve energy efficiency, manage climate risks in operations, cybersecurity, health and safety, DE&I, and anti-corruption.
Initiative register (last 24 months)
| Initiative | Date | Scope | Investment | Status |
|---|---|---|---|---|
| Licence extension to 2047 | Jul 2025 | 20-year renewal of the transport licence | — | Completed (Decree 495/2025) |
| Five-year tariff review (RQT 2025–2030) | Apr–Jun 2025 | Monthly indexation; 7.18% real after-tax WACC; about US$320m mandatory maintenance capex over 5 years; 31 staggered monthly instalments | About US$320m (mandatory) | In force |
| GPM Section I expansion | Award Oct 2025; RIGI May 2026 | +14 MMm3/d; 90,000 HP | About US$560m (US$550m RIGI-declared) | Under construction; target winter 2027 |
| Regulated-system "Final Sections" expansion | Construction from Feb 2026 | +12 MMm3/d to GBA/Litoral; 20 km loop; 15,000 HP | About US$220m | Under construction |
| Open seasons for new firm capacity | Feb 2026 | 14 MMm3/d on the GPM; 12 MMm3/d on the regulated system | — | Launched |
| Integrated NGL Project | Announced Mar 2026; FID Jul 2026 | Tratayén processing (43 MMm3/d), 577 km poliduct, 2.7 Mt/yr fractionation, Bahía Blanca export terminal | About US$3.0bn | Construction 2026–2030; start-up March 2030 |
| US$500m 2035 notes | Nov 2025 | Funding for the GPM and pipeline expansion | — | Completed |
| Transportation system reconfiguration | May 2026 | Contracts re-sourced from the west (VM) | — | Implemented |
Medium-term targets and guidance
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GPM and regulated expansions on stream for winter 2027.
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Covenant: net debt/EBITDA below 3.5x.
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No formal revenue or EBITDA guidance is published.
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No formal cost-reduction programme with targets has been disclosed.
Products & Services
Natural Gas Transportation
| Offering | Description / specifications | Target customer | Pricing model | Status / year |
|---|---|---|---|---|
| Firm transportation service (TF) | Reserved capacity paid regardless of use. Average firm contracted capacity 89.9 MMm3/d (2025) and 92.7 MMm3/d (2Q2026 release). Contracts are take-or-pay with average life above 20 years (company) | Distributors, CAMMESA, power plants, industry | Regulated maximum ("price cap") tariff: fixed reservation charge. Monthly indexation (WPI/CPI formula) since the 2025 RQT; RQT real after-tax WACC 7.18% | Core since 1992; about 78% of segment revenue (LTM Jun-26). 2Q2026 firm share 80% |
| Interruptible transportation (TI) | Capacity on an as-available basis | Traders, industry, power plants | Regulated variable tariff | Ongoing |
| Exchange and displacement (ED) | Back-haul and swap services | Shippers | Regulated | Ongoing |
| Access and use charge (CAU) | Charges for use of tgs facilities by third parties | Third parties | Regulated | Ongoing |
| Trunk pipeline system | 9,248 km total, including Neuba I, Neuba II, the San Martín pipeline (Austral basin to Buenos Aires) and connecting lines | — | — | Operating |
| Regulated-system expansion ("Final Sections") | 20 km of 36" loops and 15,000 HP of compression on Neuba II, plus MAOP uprating; 12 MMm3/d incremental capacity Salliqueló–GBA/Litoral | New firm shippers via open season | Peso tariff under licence terms | About US$220m; construction began Feb 2026; target winter 2027 |
Liquids Production and Commercialization
| Product / asset | Description / specifications | Customer / market | Pricing model | Volumes |
|---|---|---|---|---|
| General Cerri Complex (Bahía Blanca) | Gas processing complex; inlet capacity 47 MMm3/d. Flood-damaged March 2025 and restored by mid-April 2025 | — | — | Production 1,096k t (2025); 1,285k t LTM Jun-26 |
| Ethane | Petrochemical feedstock | 100% to PBB Polisur (Dow), Bahía Blanca | Long-term contract; price disclosed as having declined in 2Q2026, and a 2025 take-or-pay amount was not repeated | 335k t (2025); 398k t LTM |
| Propane | LPG | 2Q2026: 71,281 t domestic, 60,576 t export | Domestic: regulated/administered LPG prices. Export: international price | Within LPG total of 667k t (2025) |
| Butane | LPG | 2Q2026: 36,124 t domestic, 43,427 t export | As above | Within LPG total |
| Natural gasoline | C5+ | 100% export | International naphtha-linked | 94k t (2025); 105k t LTM |
| Galván Plant (Puerto Galván) | Storage and ship-dispatch terminal, about 15 km from Cerri | Export cargoes | — | Operating |
| Third-party processing / commercialization | Liquids produced on behalf of third parties | Gas owners | Fee or margin | Not separately quantified |
Midstream
| Offering | Description / specifications | Customers | Pricing | Status |
|---|---|---|---|---|
| Vaca Muerta gathering pipeline | 183 km; 60 MMm3/d gathering capacity (North 35, South 25). Interconnects with tgs, GPM and TGN systems. About US$700m cumulative investment in VM midstream | VM producers (YPF, Tecpetrol, Pampa, Shell, TotalEnergies, Pluspetrol, Chevron, Vista, ExxonMobil and others) | US$ firm and interruptible fees | VM transport volumes: 30.7 MMm3/d in 2025; 32.3 MMm3/d LTM |
| Tratayén Conditioning Plant | 28 MMm3/d over 5 modules (2019, 2021, 2023, 2024 phases). The 13.2 MMm3/d of Modules 4–5 is convertible to LPG extraction | VM producers | US$ fees | Conditioned volumes: 25.8 MMm3/d in 2025; 28.3 MMm3/d LTM |
| O&M of Perito Moreno pipeline (GPM) | Operation and maintenance of ENARSA's 573 km, 36" pipeline (Tratayén–Salliqueló) | ENARSA | Service fee | Since 2023 |
| GPM Section I expansion | +14 MMm3/d (21 to 35 MMm3/d); three new compressor plants (Casa de Piedra, Chacharramendi, Doblas) plus one unit at Tratayén; 90,000 HP total | Firm shippers via open season | US$ tariff under the Hydrocarbons Law; RIGI tax regime | About US$560m (RIGI filing: US$550m, of which US$513.3m qualifying); award Oct 2025; target winter 2027 |
| "Integra" integrated services | Wellhead services, works management, O&M of third-party plants and pipelines | Producers | Contract | Ongoing |
| Compression, treatment, integrity, engineering | Ancillary midstream services | Producers and third parties | Contract | Ongoing |
Telecommunications
| Offering | Description | Customers | Notes |
|---|---|---|---|
| Telcosur S.A. | Telecom and data services on tgs' fibre/microwave right-of-way | Carriers, corporates | Revenue Ps. 7,615m in FY2025 (Ps. Dec-25), with a small operating loss |
Under development — Integrated NGLs Project (FID July 2026)
| Component | Specification | Vehicle |
|---|---|---|
| Segregation/gathering pipeline | About 97–100 km | Procesadora de Gas del Sur (PGS), 100% tgs, reported US$1.1bn scope (Neuquén) |
| Tratayén processing | 2 new processing modules plus reconversion of 2 existing ones; 4 modules with 43 MMm3/d processing capacity | PGS |
| Y-grade poliduct | 20", about 577 km Tratayén–Bahía Blanca (crossing Río Negro, La Pampa and Buenos Aires) | MGS, 100% tgs, reported US$1.9bn scope (Bahía Blanca) |
| Fractionation plant | 2.7 million t/yr of C3+ | MGS |
| Export terminal and storage | 1 × 100,000 m3 refrigerated propane tank, 1 × 70,000 m3 butane tank, 2 × 60,000 m3 C5+ tanks (press accounts cite 30,000 m3 for C5+, a discrepancy); marine terminal works | MGS |
| Commercial model | Netback agreements transfer commodity price risk to producers. Producers keep ownership of the residue gas | — |
| Economics | Capex about US$3.0bn; exports about US$1.2bn per year; start-up targeted March 2030; capex phasing US$500m (2026), US$800m (2027), US$1.0bn (2028), US$600m (2029), remainder 1Q2030 | Per 2Q2026 call summary |
The PGS/MGS names and scopes come from industry press (LinkedIn repost of an industry article). The company presentation labels the vehicles "SPV1" and "SPV2", both 100% tgs.
Financial Narrative
Income statement — consistent US$ series (company conversion)
Source: tgs Investor Presentation, September 2026 ("Solid financial performance" slide). The company shows FY2023 EBITDA as 336 on the chart and 334 in the financial-highlights table; 336 is used here. LTM Jun-26: revenue US$1,333m, EBITDA US$740m (56% margin), capex US$340m.
Revenue CAGR FY2021–FY2025 (US$): 11.9%. EBITDA CAGR: 14.3%.
US$ net income for FY2021–FY2022 is not published on a consistent basis by the company and is marked not publicly disclosed in comparable form.
IFRS figures as originally reported: notes and sources
Source: StockAnalysis (S&P Global Market Intelligence). FY2024–FY2025 match the 4Q2025 release in Ps. Dec-25. Earlier years are in earlier measuring units, which explains the apparent 2021→2022 jump. Use only for directional reference.
Full income statement — FY2024 vs FY2025 (Ps. millions, constant pesos Dec-2025)
Commentary. FY2025 real revenue grew 7.2%, driven by Transportation (+21.5% real, on the RQT and monthly indexation) and Midstream (+22.4% real). These were partly offset by Liquids (-9.8% real), which suffered from the Bahía Blanca flood, lower export prices and IAS 29 restatement effects.
Operating profit fell 4.6%, mainly because FY2024 included a one-off Ps. 52,127m impairment reversal. Underlying operating profit (excluding the reversal) rose 2.7%. The sharp swing in "other operating results" (to -Ps. 47,308m) reflects climate-event charges at Cerri.
Net income fell 13.6%. The financial result swung from +Ps. 28,362m to -Ps. 63,166m because of higher interest on the new 2035 notes and lower returns on financial assets.
Interim momentum — 6M2026 vs 6M2025 (Ps. millions, constant pesos Jun-2026)
2Q2026 alone: revenue Ps. 535,522m (+15.4%), operating profit Ps. 216,327m (+32.2%), net income Ps. 133,145m (vs Ps. 53,780m), EPS Ps. 176.88 (Ps. 884.38 per ADS).
Balance sheet
At 30 Jun 2026 (US$): cash and financial assets 1,489; PP&E 2,711; total assets 4,499; financial debt 1,153; equity 2,677; net cash about 336.
Goodwill and intangibles: none material reported (P/TBV equals P/B at 1.58x per StockAnalysis).
Debt currency: all financial debt is denominated in foreign currency (4Q2025 release).
At 30 Jun 2026 (Ps. Jun-26), net debt stood at -Ps. 497,604m (net cash):
Cash flow
The 6M2026 picture (Ps. Jun-26) is markedly stronger:
OCF: Ps. 601,976m, versus Ps. 329,762m in 6M2025, helped by a Ps. 154,508m increase in contract liabilities. These are shipper prepayments; Criteria notes the first prepayment instalment tied to the GPM expansion.
Capex: Ps. 318,456m.
FCF: 2Q2026 alone was Ps. 227,470m.
Dividends: none paid in 2026 to date.
Ratios
All ratios are computed from Ps. Dec-25 figures. ROIC uses NOPAT excluding the 2024 impairment reversal. LTM Jun-26 per StockAnalysis: ROE 16.0%, ROIC 11.6%, interest coverage 6.85x, debt/EBITDA 1.66x.
The company reports the following net leverage per its bond covenant definition:
Trend commentary
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2021–2023 trough: the peso tariff freeze and high inflation crushed transportation margins. Transportation EBITDA was only US$53m in 2023, a 29% margin. Group EBITDA fell to US$336m.
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2024 inflection: emergency tariff normalization (about 675% in April 2024) lifted transportation EBITDA to US$252m. Tratayén Modules 4–5 added midstream volume.
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2025 consolidation: the RQT added monthly indexation and a 7.18% real WACC. Transportation EBITDA reached US$335m. Liquids fell to US$157m on the flood and weaker prices.
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2026: record half-year (US$405m EBITDA in 1H2026 vs US$325m) as Cerri volumes recovered and richer gas improved yields. The balance sheet is being pre-funded for the largest capex programme in company history.
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View Subscription PlansFinancial Detail
Segment revenue (USD Mn)
| Segment revenue (USD Mn) | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
Natural Gas Transportation | 185 | 404 | 503 |
Liquids Production and Commercialization | 501 | 488 | 468 |
Midstream and Other Services | 169 | 197 | 253 |
Total revenue | 855 | 1,089 | 1,224 |
Segment EBITDA (USD Mn)
| Segment EBITDA (USD Mn) | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
Natural Gas Transportation EBITDA | 53 | 252 | 335 |
Liquids EBITDA | 170 | 201 | 157 |
Midstream EBITDA | 111 | 133 | 166 |
Total EBITDA | 334 | 586 | 657 |
Segment EBITDA margin (%)
| Segment EBITDA margin (%) | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
Natural Gas Transportation EBITDA margin % | 29 | 62 | 67 |
Liquids EBITDA margin % | 34 | 41 | 34 |
Midstream EBITDA margin % | 66 | 68 | 66 |
Segment revenue growth YoY (%)
| Segment revenue growth YoY (%) | FY2024 | FY2025 |
|---|---|---|
Natural Gas Transportation YoY % | 118.4 | 24.5 |
Liquids YoY % | -2.6 | -4.1 |
Midstream YoY % | 16.6 | 28.4 |
Total YoY % | 27.4 | 12.4 |
Contribution to total revenue (%)
| Contribution to total revenue (%) | FY2023 | FY2024 |
|---|---|---|
Natural Gas Transportation % of revenue | 21.6 | 37.1 |
Liquids % of revenue | 58.6 | 44.8 |
Midstream % of revenue | 19.8 | 18.1 |
Segment revenue (Ps. M, Dec-25)
| Segment revenue (Ps. M, Dec-25) | FY2024 | FY2025 |
|---|---|---|
Natural Gas Transportation | 580,296 | 705,124 |
Liquids Production and Commercialization | 732,283 | 660,573 |
Midstream | 283,797 | 347,314 |
Telecommunications | 8,212 | 7,615 |
Total revenue | 1,604,587 | 1,720,626 |
Segment operating profit (Ps. M, Dec-25) | FY2024 | FY2025 |
Natural Gas Transportation operating profit | 290,003 | 321,682 |
Liquids operating profit | 293,558 | 216,995 |
Midstream operating profit | 153,406 | 165,174 |
Telecommunications operating profit | 100 | -370 |
Total operating profit | 737,067 | 703,481 |
Segment depreciation and capex (Ps. M, Dec-25) | FY2024 | FY2025 |
Natural Gas Transportation depreciation | 112,449 | 123,134 |
Liquids depreciation | 13,284 | 14,169 |
Midstream depreciation | 44,841 | 64,658 |
Natural Gas Transportation PPE investment | 108,022 | 117,862 |
Liquids PPE investment | 21,446 | 12,336 |
Midstream PPE investment | 285,617 | 112,780 |
Segment Overview
| Segment | Operating margin |
|---|---|
Transportation | 45.6% |
Liquids | 32.9% |
Midstream | 47.6% |
Segment Revenue
| Segment | 6M2025 revenue | 6M2026 revenue | YoY % | 6M2025 op. profit | 6M2026 op. profit |
|---|---|---|---|---|---|
Natural Gas Transportation | 417,179 | 402,444 | -3.5% | 185,447 | 209,314 |
Liquids | 318,340 | 445,761 | +40.0% | 93,991 | 177,145 |
Midstream | 181,839 | 201,471 | +10.8% | 84,669 | 97,056 |
Telecommunications | 4,232 | 3,883 | -8.2% | (272) | (424) |
Total | 921,590 | 1,053,560 | +14.3% | 363,835 | 483,092 |
Income Statement and Margin Analysis (%)
| Metric (USD Mn) | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
Revenue (USD Mn) | 781 | 926 | 855 | 1,089 | 1,224 |
EBITDA (USD Mn) | 385 | 402 | 336 | 586 | 657 |
EBITDA margin (%) | 49.3 | 43.4 | 39.3 | 53.8 | 53.7 |
Capex (USD Mn) | 94 | 143 | 225 | 281 | 221 |
EBITDA minus capex (USD Mn) | 291 | 259 | 111 | 305 | 436 |
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View Subscription PlansIncome Statement and Margin Analysis (%) (FY2023–FY2025)
| Metric (USD Mn) | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
Net income (USD Mn) | 29 | 359 | 289 |
Net financial result (USD Mn) | -90 | 24 | -43 |
Net margin (%) | 3.4 | 33.0 | 23.6 |
Financial Analysis
| Metric (Ps. M, as reported; each year in its own constant-peso unit) | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
Revenue (Ps. M as reported) | 173,320 | 1,115,696 | 1,297,140 | 1,604,587 | 1,720,626 |
Net income (Ps. M as reported) | 40,772 | 219,157 | 67,369 | 486,946 | 420,860 |
EPS basic and diluted (Ps. as reported) | 54.16 | 291.14 | 89.50 | 646.88 | 559.09 |
Operating cash flow (Ps. M as reported) | 59,024 | 240,154 | 543,056 | 636,915 | 551,667 |
Capex (Ps. M as reported) | 18,795 | 171,619 | 386,966 | 381,243 | 320,463 |
Free cash flow (Ps. M as reported) | 40,229 | 68,536 | 156,091 | 255,673 | 231,204 |
Income statement (Ps. M, Dec-25)
| Income statement (Ps. M, Dec-25) | FY2024 | FY2025 |
|---|---|---|
Revenue | 1,604,587 | 1,720,626 |
Cost of sales | -756,721 | -787,388 |
Gross profit | 847,866 | 933,238 |
Administrative and selling expenses | -163,998 | -182,449 |
Other operating results net | 1,073 | -47,308 |
Reversal of PPE impairment | 52,127 | 0 |
Operating profit | 737,067 | 703,481 |
Depreciation of PPE | 170,574 | 201,961 |
EBITDA (op. profit + D&A - impairment reversal) | 855,514 | 905,442 |
Net financial results | 28,362 | -63,166 |
Share of associates | 321 | 3,728 |
Pre-tax income | 765,749 | 644,043 |
Income tax | -278,804 | -223,183 |
Net income (total comprehensive income) | 486,945 | 420,860 |
EPS (Ps.) | 646.88 | 559.09 |
EPS per ADS (Ps.) | 3,234.40 | 2,795.44 |
Margins (%)
| Margins (%) | FY2024 | FY2025 |
|---|---|---|
Gross margin % | 52.8 | 54.2 |
Operating margin % | 45.9 | 40.9 |
EBITDA margin % | 53.3 | 52.6 |
Pre-tax margin % | 47.7 | 37.4 |
Net margin % | 30.3 | 24.5 |
Effective tax rate % | 36.4 | 34.7 |
Financial Analysis (6M2025–6M2026)
| Interim metric (Ps. M, Jun-26) | 6M2025 | 6M2026 |
|---|---|---|
Revenue | 921,590 | 1,053,560 |
Operating profit | 363,835 | 483,092 |
Depreciation | 116,359 | 123,226 |
EBITDA (op. profit + D&A) | 480,194 | 606,318 |
Net financial results | -56,009 | -5,689 |
Income tax | -102,172 | -173,033 |
Net income | 206,084 | 304,306 |
EPS (Ps.) | 273.77 | 404.25 |
Balance Sheet
| Balance sheet (USD Mn, company conversion at year-end BNA rate) | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
Cash, equivalents and other financial assets (USD Mn) | 540 | 772 | 1,243 |
PP&E (USD Mn) | 1,228 | 2,311 | 2,180 |
Total assets (USD Mn) | 1,887 | 3,289 | 3,721 |
Financial debt (USD Mn) | 583 | 562 | 1,172 |
Total liabilities (USD Mn) | 829 | 1,125 | 1,571 |
Shareholders' equity (USD Mn) | 1,058 | 2,164 | 2,150 |
Net debt (USD Mn; negative = net cash) | 43 | -210 | -71 |
Financial Analysis (FY2024–FY2025)
| Balance sheet (Ps. M, Dec-25) | FY2024 | FY2025 |
|---|---|---|
Total assets | 4,465,552 | 5,414,210 |
Property plant and equipment | 3,137,276 | 3,171,442 |
Cash and cash equivalents | 78,895 | 804,107 |
Financial assets at fair value through P&L | 611,643 | 648,152 |
Financial assets at amortized cost | 357,299 | 355,916 |
Short-term loans | 103,129 | 244,878 |
Long-term loans | 659,998 | 1,460,728 |
Total financial debt | 763,127 | 1,705,606 |
Net debt (negative = net cash) | -284,710 | -102,569 |
Total equity | 2,938,158 | 3,127,865 |
Current assets | 1,326,082 | 2,236,945 |
Current liabilities | 485,357 | 447,234 |
Working capital | 840,725 | 1,789,711 |
Components
| Component | Ps. M |
|---|---|
Debt | 1,708,476 |
Cash | 286,690 |
Financial assets | 1,919,390 |
Cash flow (Ps. M, Dec-25)
| Cash flow (Ps. M, Dec-25) | FY2024 | FY2025 |
|---|---|---|
Operating cash flow | 636,915 | 551,667 |
Capex (PPE additions paid) | -381,243 | -320,463 |
Free cash flow | 255,673 | 231,204 |
Dividends paid | 0 | -231,152 |
Share buybacks | 0 | 0 |
Proceeds from loans | 770,028 | 887,257 |
Repayment of loans | -810,265 | -582 |
Income tax paid | -5,250 | -186,113 |
Interest paid | -42,177 | -65,025 |
Returns & Leverage Ratios (%) and Financial Ratios (x)
| Ratio | FY2024 | FY2025 |
|---|---|---|
ROE on ending equity % | 16.6 | 13.5 |
ROA on ending assets % | 10.9 | 7.8 |
ROIC (NOPAT / equity plus debt) % | 11.8 | 9.5 |
Current ratio (x) | 2.73 | 5.00 |
Debt to equity (x) | 0.26 | 0.55 |
Net debt to EBITDA (x) | -0.33 | -0.11 |
Interest coverage (op. profit / interest expense) (x) | 10.1 | 7.9 |
Asset turnover (x) | 0.36 | 0.32 |
Days sales outstanding | 46.7 | 41.7 |
Days inventory outstanding | 2.3 | 4.8 |
Days payables outstanding | 48.7 | 46.6 |
Cash conversion cycle (days) | 0.3 | -0.1 |
Net Debt/EBITDA by Date
| Date | Net Debt/EBITDA |
|---|---|
30 Jun 2026 | -0.4x |
LTM chart | (0.5)x |
Distribution Details
| Distribution | Amount |
|---|---|
2025 dividend paid (from FY2024 earnings) | About US$170m, roughly US$0.226 per share / US$1.13 per ADS; Ps. 231,152m in Dec-25 pesos (about Ps. 307 per share). StockAnalysis lists Ps. 269.28 DPS (nominal) |
| 2,018 | US$114m |
| 2,019 | US$169m plus 29.4m treasury shares |
2020–2024 | No cash dividends paid |
| 2,026 | None paid to date; earnings retained in the "reserve for capex, treasury-share acquisition and/or dividends" (Ps. 2,401,529m at 30 Jun 2026) |
Liquids revenue by market (Ps. M, Dec-25)
| Liquids revenue by market (Ps. M, Dec-25) | 4Q2024 | 4Q2025 |
|---|---|---|
Local market | 79,152 | 42,513 |
Foreign market | 129,832 | 155,093 |
Total liquids revenue | 208,984 | 197,606 |
Liquids revenue by market (Ps. M, Jun-26) | 2Q2025 | 2Q2026 |
Local market | 118,256 | 129,556 |
Foreign market | 42,505 | 109,348 |
Total liquids revenue | 160,761 | 238,904 |
Volumes (tonnes)
| Volumes (tonnes) | 2Q2025 | 2Q2026 |
|---|---|---|
Local ethane | 69,784 | 93,956 |
Local propane | 52,876 | 71,281 |
Local butane | 31,696 | 36,124 |
Export propane | 17,388 | 60,576 |
Export butane | 20,541 | 43,427 |
Export natural gasoline | 18,990 | 24,789 |
Total | 211,275 | 330,154 |
Volumes (tonnes) (4Q2024–4Q2025)
| Volumes (tonnes) | 4Q2024 | 4Q2025 |
|---|---|---|
Local ethane | 100,338 | 107,374 |
Local propane | 37,152 | 37,676 |
Local butane | 34,758 | 22,866 |
Export propane | 88,100 | 87,665 |
Export butane | 50,162 | 65,625 |
Export natural gasoline | 27,801 | 31,551 |
Total | 338,311 | 352,756 |
Liquids production ('000 t)
| Liquids production ('000 t) | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
Ethane | 361 | 329 | 394 | 310 | 335 |
LPG (propane plus butane) | 682 | 666 | 615 | 634 | 667 |
Natural gasoline | 125 | 128 | 124 | 108 | 94 |
Total | 1,168 | 1,123 | 1,133 | 1,052 | 1,096 |
Revenue by currency regime (USD Mn)
| Revenue by currency regime (USD Mn) | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
Regulated peso-tariff revenue (Transportation) | 185 | 404 | 503 |
Non-regulated US$-linked revenue (Liquids plus Midstream) | 670 | 685 | 721 |
Capital Markets
| Item | Value |
|---|---|
NYSE ADS close (5 Oct 2026) | US$26.58 |
NYSE ADS close (30 Sep 2026) | US$25.95 |
BYMA TGSU2 (recent) | About ARS 9,430 (ROIC.ai; date not stated); traded ARS 9,000–9,900 in June–July 2026 (Rava) |
52-week ADS change | +25.6% (StockAnalysis) |
50-day / 200-day moving averages | US$28.54 / US$30.23 (shares below both, i.e., a pull-back from mid-2026 highs) |
Beta (5Y) | -0.54 |
Coverage | 8 analysts; consensus "Buy"; average target US$40.88 (about +54% upside) per StockAnalysis |
Other target data | MarketBeat-reported consensus target US$39.50; individual Buy targets of US$43 and US$48 (June 2026, Investing.com) |
3-year revenue growth forecast | 11.6% per year (StockAnalysis) |
2Q2026 consensus pre-report | EPS US$0.62 per ADS; revenue about US$318m (MarketBeat) |
Valuation Multiples
| Multiple | tgs | Notes |
|---|---|---|
P/E (trailing) | 12.1x | Forward P/E 10.8x |
EV/EBITDA | 5.7x | — |
EV/Sales | 3.1x | — |
P/B | 1.58x | — |
P/FCF | 19.1x | Elevated by the growth capex ramp |
FCF yield | 5.3% | — |
Dividends paid (USD Mn)
| Dividends paid (USD Mn) | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
Cash dividends paid (USD Mn) | 0 | 0 | 0 | 0 | 170 |
Credit Ratings
| Agency | Rating | Date |
|---|---|---|
S&P Global | B (local and foreign currency), up from B- | 11 Jun 2026 |
Moody's | B1 (notes), up from B2 | 23 Jul 2026 |
Capital Instruments
| Instrument | Amount | Coupon | Maturity | Notes |
|---|---|---|---|---|
Senior notes 2031 | US$490m | 8.50% | 24 Jul 2031 (bullet) | Issued at 98.712%; refinanced the 2025 notes; covenant net debt/EBITDA below 3.5x |
Senior notes 2035 | US$500m | 7.75% | 20 Nov 2035 (bullet) | Issued at 98.301%; yield 8.0%; proceeds for the GPM and pipeline expansion |
Bank loans, leasing and other | About US$160m | Various | Mainly 2026–2029 (chart shows small annual amounts, US$33m in 2028) | Year-by-year split not cleanly extractable from the chart |
Total financial debt | US$1,153m (30 Jun 2026) | — | — | Gross debt of Ps. 1,708,476m |
Analyst Conclusions
Management guidance
NGL project: capex of about US$500m in 2026, US$800m in 2027, US$1.0bn in 2028 and US$600m in 2029, with the remainder in 1Q2030. Start-up in March 2030; about US$1.2bn of annual exports.
Expansions: GPM and regulated-system expansions (+14 and +12 MMm3/d) in service for winter 2027.
Leverage: remains within the 3.5x net debt/EBITDA covenant through the peak investment years (per Criteria's summary of management).
Earnings: no numeric EBITDA guidance is given.
Consensus expectations
-
Revenue growth of about 11.6% per year over three years.
-
Forward P/E of 10.8x implies modest EPS growth from an LTM base of about US$2.20 per ADS-equivalent unit (StockAnalysis definition).
Bull case
-
Contracted, dollarized growth. The NGL project is more than 90% contracted under netback agreements, so commodity risk sits largely with producers. Combined with the GPM expansion's US$ tariff, the US$-denominated EBITDA base could rise substantially by 2030, on a business already generating US$740m LTM EBITDA.
-
Regulatory normalization is locked in. Licence to 2047, monthly indexation and a 7.18% real WACC have lifted transportation EBITDA from US$53m (2023) to US$341m (LTM). Each further sovereign upgrade compresses tgs' cost of capital, as the June and July 2026 rating actions show.
-
Valuation. At about 5.7x EV/EBITDA with net cash, the market barely prices the growth programme. The consensus target of about US$41 implies roughly 50% upside.
Bear case
-
Execution and funding risk. More than US$3.8bn of capex through 2030 against a US$4bn market cap. Delays, cost inflation or financing stress could push leverage toward the covenant and suspend dividends for years. No dividend has been paid in 2026.
-
Political risk is cyclical, not solved. The 2019–2023 freeze cut transportation EBITDA by about 80%. The 2027 elections and the institutional change to ENReGE reintroduce tariff uncertainty, since about 38–46% of EBITDA is regulated.
-
Commodity and concentration exposure. Liquids EBITDA fell 22% in 2025 on prices and the Cerri flood. The NGL project increases Bahía Blanca concentration, and netback structures do not eliminate volume risk if Vaca Muerta oil growth stalls.
Catalysts and monitorables (next 12 months)
-
3Q2026 results (22 Oct or 9 Nov 2026; sources conflict) and FY2026 results (around Feb 2027).
-
NGL project financing (bank tranche), EPC awards and first-phase construction milestones.
-
GPM and regulated-system expansion progress toward winter 2027 commissioning; open-season allocation results.
-
Monthly ENReGE tariff resolutions; any political interference ahead of the 2027 elections.
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Further sovereign and corporate rating actions; any new US$ bond issuance.
-
AGM 2027 dividend decision.
-
Any movement on the FGS-ANSES 25.33% stake or CIESA ownership (Safra disclosure).
-
Liquids volumes and international LPG prices; quality of Cerri inlet gas.
Analyst verdict
Transportadora de Gas del Sur has moved from a tariff-starved utility with a commodity hedge into a fully re-rated infrastructure platform at the centre of Argentina's Vaca Muerta build-out.
The evidence is strong. US$ EBITDA rose from US$336m in 2023 to US$657m in 2025 and US$740m LTM. Transportation margins recovered from 29% to 68%. The licence now runs to 2047 with inflation indexation. The balance sheet carries net cash even after issuing US$990m of bonds in 16 months.
The next leg is growth. The GPM expansion and the US$3bn NGL project are both secured: the first by award and RIGI approval, the second by FID with blue-chip producers holding more than 90% of capacity. Together they give tgs a credible path to a materially larger, predominantly dollar-denominated EBITDA base by 2030.
The investment case nonetheless rests on three sovereign-correlated assumptions:
-
that Argentina keeps honouring regulatory indexation through the 2027 election cycle;
-
that Vaca Muerta oil and associated-gas growth continues at the pace implied by producer contracts;
-
that tgs delivers a megaproject roughly as large as its own market capitalization on time and on budget.
History argues for humility: the 2019–2023 tariff freeze erased most of the regulated earnings within two years. Shareholders will also likely forgo meaningful dividends until the NGL project is commissioned.
The sell-side consensus "Buy" (target about US$41) is consistent with that view. The equity is best framed as a leveraged, de-risked call on Argentine macro normalization and Vaca Muerta growth, not a bond proxy.
Key monitorables are tariff-resolution continuity, NGL financing and EPC progress, and the trajectory of net debt/EBITDA through the 2028–2029 capex peak. Verdict: constructive, with high macro beta.
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View Subscription PlansExecutive Leadership
Executive Leadership Team
| Name | Title | Tenure | Background | Age |
|---|---|---|---|---|
Oscar José Sardi | Chief Executive Officer | CEO since 30 Apr 2019 | Mechanical Engineer (Universidad Nacional de Rosario); major in Natural Gas (Universidad de Buenos Aires). Began at Gas del Estado; held technical, coordination, supervisory and managing roles at tgs; VP Operations before appointment as CEO | About 70–71 (GlobalData / Simply Wall St; not confirmed in 20-F) |
Alejandro Mario Basso | Chief Financial Officer and VP Services | CFO since 2016 | VP Planning & Control 1998–2008 | About 62 (GlobalData) |
Juan Ignacio de Urraza | Business Director / VP Business | Since 2020 | — | About 57 (GlobalData) |
Rubén De Muria | VP Regulatory and Corporate Affairs | — | — | — |
Carlos Almagro | Head of Investor Relations | — | Leads earnings calls | — |
Leandro Pérez Castaño | Finance and Corporate Information Manager | — | — | — |
“—” = not publicly disclosed.
Major Shareholders
| Holder | Stake | Notes |
|---|---|---|
CIESA (controlling holding company) | 53.83% | Owned 50% by Pampa Energía, 27.1% by the Sielecki group (Grupo Inversor Petroquímica S.L.) and 22.9% by Safra (Investor Presentation, September 2026; earlier releases name PCT L.L.C. alongside GIP for the non-Pampa 50%) |
Argentine Pension Fund (FGS–ANSES) | 25.33% | State social-security fund |
Free float (BYMA and NYSE) | 20.84% | — |
Institutional ownership (ADS float basis) | About 40.6% of float-adjusted shares (StockAnalysis) | — |
Insider ownership | About 0.03% (StockAnalysis); CEO direct holding about 0.002% (Simply Wall St, 2025) | — |
Competitive Landscape
Competitors by Segment
| Segment | Competitor | Positioning vs. tgs |
|---|---|---|
Transportation | Transportadora de Gas del Norte (TGN) | Argentina's other licensed trunk transporter (north/centre system); licence also up for 20-year extension. |
Transportation | ENARSA (state) | Owner of the GPM and other state pipelines; partly privatizing via private initiatives such as tgs' award |
Transportation (regional) | Gas Andes, Gasoducto del Pacífico and other export pipelines | Export corridors to Chile; complementary rather than direct rivals |
Liquids | Compañía Mega (YPF / Petrobras / Dow) | Loma La Lata separation plant and Bahía Blanca fractionation; Argentina's largest NGL producer, positioning tgs as #2 |
Liquids | YPF (refining and LPG) | Major domestic LPG supplier |
Liquids (export) | US Gulf Coast LPG exporters (Enterprise Products, Targa, Energy Transfer) | Set global LPG price benchmarks; compete for South American and Asian buyers |
Midstream | Producer-owned facilities (Tecpetrol Fortín de Piedra, Pampa, PAE, TotalEnergies Austral conditioning plants) | Self-supply alternatives |
Midstream | YPF midstream | Integrated gathering for YPF blocks |
Midstream | Oldelval / VMOS (oil) | Compete for VM midstream capital and contractor capacity (oil, not gas) |
Midstream | TGN | Alternative evacuation route |
Peer Comparison FY2025
| Company | Revenue (USD Bn) | Revenue growth | Adj. EBITDA margin |
|---|---|---|---|
tgs (FY2025) | 1.22 | +12.4% (US$) | 53.7% |
Kinder Morgan (FY2024, approx.) | about 15.1 | about -1% | about 55% |
Williams Cos. (FY2024, approx.) | about 10.5 | about -4% | about 68% |
Targa Resources (FY2024, approx.) | about 16.4 | about +2% | about 25% |
