Interim report
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Revenue (COP billion) In 2Q26 vs. 2Q25, revenue declined mainly due to the application of the 10.94% WACC and the adjustment in transportation service contracting in line with gas supply, particularly in industrial demand. This impacted net income, which fell due to lower operating income and a lower non- operating net result, mainly driven by higher financial expenses resulting from the increase in IBR. − Regulation: i) WACC Change: The impact in 2Q2026 from the WACC change from 11.88% to 10.94% was COP$19.000 M. ii) Tariff Docket: All required efforts and actions have been undertaken at every level to secure the issuance of new tariffs in 2026, including: submission of expert opinions to the CREG, a supporting hearing, discussions with CREG Commissioners, and meetings with the CREG and the Ministry of Mines and Energy (MME). In July 2026, the CREG issued an order addressed to TGI and the third parties involved in the administrative proceeding, allowing them to comment or present arguments on the evidence in the tariff docket, in the form of closing statements. We will continue taking the appropriate actions with the CREG and the new Government to keep the process moving forward. − Expansion: i) The commercial plan under the expansion pillar seeks to recover industrial demand, serve thermal dispatch, and secure new gas sources for the SNT, while maintaining close monitoring of market participants and contractual flexibility. This is expected to generate incremental revenue of COP$39.000 M through the following initiatives: a) Incremental Transport – Unregulated Industrial (COP$5.000 M), b) Interruptible Contracts – Thermal Demand (COP$14.800 M), c) Cali – Vasconia Bidirectionality (LNG PIO SAS) (COP$12,300 M), and d) Bidirectional Parking and Transport (COP$7.360 M). ii) Progress was made on the 8 projects submitted by TGI to the UPME, which are at different stages of the regulatory approval process required. − Efficiency: We maintain an efficiency program aimed at improving results and offsetting the revenue decline, as follows: i) Opex: Net impact of COP$38.000 M from initiatives related to Fuel Gas, the Insurance Program, the Full IT Outsourcing Contract, resuming O&M of the La Sabana Gas Pipeline, and Maintenance Management Optimization. ii) Capex: Net impact of COP$41.000 M, through prioritization of the most relevant projects. − Change in Context: i) Reserve Decline: Natural gas reserves have fallen 31% over the past 5 years, leaving less than 6 years of proven reserves; how this scenario evolves will depend on new exploration and production dynamics. ii) Industrial Demand Decline: Industrial demand in the country's interior has been the most affected, given the supply deficit, lack of firm supply, and the competitiveness of imported gas, shifting consumption toward more polluting substitutes. iii) Imports: Uncertainty surrounding domestic production projects confirms that significant gas imports will be necessary in the coming years. EBITDA (COP billion) Net Income (COP billion) Results Report 2Q26 Colombia's Natural Gas Market ⎼ National natural gas demand decreased by 20.6 GBTUD in 2Q26 vs. 2Q25, due to lower consumption in the industrial-refinery (-22.3 GBTUD), residential-commercial (-10.9 GBTUD), and vehicular-CNG (-4.3 GBTUD) sectors, while the thermoelectric and petrochemical sectors grew by 16.5 GBTUD and 0.4 GBTUD, respectively. ⎼ Demand in the country's interior fell by 85.6 GBTUD in 2Q26 vs. 2Q25 due to lower consumption in the industrial-refinery (-41.4 GBTUD), thermoelectric (-30.9 GBTUD), residential- commercial (-9.9 GBTUD), and vehicular-CNG (-3.5 GBTUD) sectors, while the petrochemical sector had no consumption in either of the two quarters analyzed. Firm Contracted and Transported Gas (Mcfpd) Underlined Figure: Volume Transported Figures Calculated as Simple Quarterly Averages Download TGI Datapack Download TGI Datapack Cumulative Figures and 2Q Table No. 2 – Natural Gas Demand by Sector Colombia Country Interior (GBTUD) 2Q25 2Q26 Var % 2Q25 2Q26 Var % Industrial – Refinery 393.2 370.9 - 5.7% 211.4 170.0 - 19.6% Residential – Commercial 235.0 224.1 - 4.6% 190.1 180.2 - 5.2% Thermoelectric 177.6 194.1 9.3% 31.2 0.3 - 99.1% Vehicular – CNG 59.7 55.3 - 7.3% 48.6 45.2 - 7.1% Petrochemical 5.2 5.6 8.1% 0.0 0.0 N.A. Total 870.6 850.0 - 2.4% 481.2 395.6 - 17.8% International Credit Rating: *Last 12 months Fitch – Aug. 12/26: BBB-, Stable Outlook Moody's – Dec. 30/25: Baa3, Stable Outlook Table No. 1 – Key Financial Indicators 2Q25 2Q26 Var Var % 6M2025 6M2026 Var Var % Revenue (COP million) 503,434 446,821 -56,613 -11.2 999,535 911,996 -87,540 -8.8 Operating income (COP million) 252,996 220,815 -32,180 -12.7 499,319 450,783 -48,537 -9.7 EBITDA (COP million) 376,537 314,530 -62,007 -16.5 752,016 653,916 -98,100 -13.0 EBITDA Margin 74.8% 70.4% -4.4 pp 75.2% 71.7% -3.5 pp Net income (COP million) 114,282 75,383 -38,900 -34.0 207,618 158,696 -48,922 -23.6 Total gross debt / EBITDA* 1.8x 1.9x 0.0x 1.8x 1.9x 0.0x Net debt / EBITDA* 1.6x 1.7x 0.1x 1.6x 1.7x 0.1x EBITDA* / Financial expenses* 3.7x 3.4x -0.3x 3.7x 3.4x -0.3x 2,127 2,013 912 519 503 447 2024 2025 2026 1,661 1,530 654 400 377 315 2024 2025 2026 503 509 159 126 114 75 2024 2025 2026 654 627 551 485 455 411 2Q24 2Q25 2Q26
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Financial Results of TGI S.A. E.S.P. TGI (Transportadora de Gas Internacional S.A. E.S.P.) develops and provides comprehensive low- emission hydrocarbon transportation and logistics solutions to large users, producers, and energy market developers, connecting sources with consumption centers t hrough long -term relationships. TGI S.A. E.S.P. is incorporated under Colombian law. This report presents the variations under International Financial Reporting Standards (IFRS) in the comparative financial statements for 2Q25 and 2Q26 (3 months). 2Q26 Quarterly Results Operating Revenues Table No. 3 – Revenues by Charge Type and Currency COP Millions 2Q25 2Q26 Var Var % 6M25 6M26 Var Var % By Charge Type Fixed Investment Charges 325,676 255,859 -69,817 -21.4% 646,504 536,602 -109,902 -17.0% Fixed O&M Charges 121,585 112,832 -8,753 -7.2% 241,719 228,468 -13,251 -5.5% Variable Charges 48,497 62,183 13,686 28.2% 100,092 121,249 21,157 21.1% Other Revenues 7,676 15,947 8,271 107.8% 11,220 25,677 14,457 128.8% By Currency USD-Indexed 0 0 0 0.0% 0 0 0 0.0% COP-Indexed 503,434 446,821 -56,613 -11.2% 999,535 911,996 -87,540 -8.8% Total 503,434 446,821 -56,613 -11.2% 999,535 911,996 -87,540 -8.8% Operating revenues amounted to COP 446,821 M in 2Q26, representing a decrease of COP 56,613 M (-11.2%) compared with 2Q25, as detailed below: – Fixed investment charges totaled COP 255,859 M in 2Q26 (57.3% of total revenue), representing a decrease of COP 69,817 M (-21.4%) compared with 2Q25. This was attributable to the tariff change with a 10.94% WACC and to the adjustment in transportation serv ice contracting based on the availability of gas molecules or gas supply, mainly in Industrial demand within the Distribution and Marketing sector, particularly among agents such as Vanti, EPM, and Ecopetrol, as follows: i ) Vanti: decrease in demand of 46,039 KPCD, ii) EPM: decrease in demand of 17,333 KPCD, and iii) Ecopetrol: decrease in demand of 11,926 KPCD. – Fixed AO&M charges totaled COP 112,832 M in 2Q26 (25.3% of total revenue), representing a decrease of COP 8,753 M ( -7.2%) compared with 2Q25, mainly attributable to the adjustment in transportation service contracting based on the availability of gas molecules or gas supply, particularly in Industrial demand within the Distribution and Marketing sector, mainly among agents such as Vanti, EPM, and Ecopetrol, as detailed in the preceding paragraph. – Variable charges totaled COP 62,183 M in 2Q26 (13.9% of total revenue), representing an increase of COP 13,686 M (28.2%) compared with 2Q25, due to the decline and uncertainty in gas supply, which has led agents to make greater use of contracts with variab le and/or interruptible components.
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2 – Other revenue increased 107.8% between 2Q26 and 2Q25, rising from COP 7,676 M in 2Q25 to COP 15,947 M in 2Q26 (3.6% of total revenue), mainly due to: i) higher revenue associated with IPAT projects amounting to COP 6,340 M, ii) an increase of COP 946 M in compensation for gas losses, iii) an increase of COP 551 M in parking services, and iv) an increase of COP 434 M across various items. Regarding revenue by currency, since June 2023, following the change in the remuneration of fixed and variable charges from USD to COP, 100% of revenue in both 2Q26 and 2Q25 is denominated in COP. Operating Costs Table N°4 – Operating Costs COP Millions 2Q25 2Q26 Var Var % 6M25 6M26 Var Var % Professional Services 27,393 33,522 6,129 22.4% 53,910 66,740 12,830 23.8% Maintenance 33,290 13,793 -19,497 -58.6% 48,674 29,837 -18,838 -38.7% Taxes, Fees and Contributions (TFC)* 2,607 1,327 -1,281 -49.1% 4,687 2,662 -2,025 -43.2% Depreciation and Amortization 104,105 108,470 4,366 4.2% 207,434 211,884 4,450 2.1% Other Costs 36,927 28,050 -8,877 -24.0% 86,238 60,103 -26,134 -30.3% Total 204,323 185,163 -19,160 -9.4% 400,942 371,226 -29,716 -7.4% *TFC: Taxes, Fees and Contributions Operating costs decreased by COP 19,160 M ( -9.4%) in 2Q26 compared with 2Q25, mainly due to: – Professional services increased by COP 6,129 M (22.4%), due to the 2026 salary increase and greater execution of technical consulting services related to geotechnical inspection and monitoring activities. – Maintenance costs decreased by COP -19,497 M (58.6%), mainly due to lower spending on replacement gas, emergency response, and third-party services related to pipeline integrity, partially offset by greater execution of building and right-of-way maintenance. – Taxes, fees and contributions (ITC) decreased by COP -1,281 M ( -49.1%), mainly due to a reduction in the solidarity contribution and the public lighting tax, in connection with which legal proceedings have been initiated challenging TGI's status as a taxable person. – The increase in depreciation and amortization of COP 4,366 M (4.2%) was mainly due to higher depreciation of plants and pipelines resulting from the capitalization of maintenance, mechanical, geotechnical, and other works. – Other costs decreased by COP -8,877 M (-24%), mainly due to lower expenses for fuel gas and insurance, particularly the all -risk property damage policy, partially offset by greater spending on transportation and security services.
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3 Administrative & Operating Expenses (net) Table N°5 – Administrative and Operating Expenses COP Millions 2Q25 2Q26 Var Var % 6M25 6M26 Var Var % Personnel Expenses 9,980 10,527 547 5.5% 19,945 22,383 2,437 12.2% General Expenses 14,792 42,979 28,186 190.6% 30,265 65,957 35,691 117.9% Taxes 1,907 2,094 187 9.8% 3,800 10,398 6,598 173.6% D&A&P 24,168 12,513 -11,655 -48.2% 51,674 23,050 -28,624 -55.4% Other Income/Expenses -4,732 -27,269 -22,537 476.3% -6,411 -31,800 -25,390 396.1% Total 46,115 40,843 -5,272 -11.4% 99,274 89,987 -9,287 -9.4% Total excluding Other Income/Expenses 50,847 68,113 17,265 34.0% 105,684 121,787 16,103 15.2% *D&A&P: Depreciation, Amortization, and Provisions Administrative and operating expenses, including net other income/expenses, decreased by COP 5,272 M (-11.4%), mainly due to: – Higher personnel expenses of COP 547 M (5.5%), mainly attributable to the 2026 salary increase, partially offset by reductions in performance bonuses, severance payments, and other related items. – Higher general expenses of COP 28,186 M (190.6%), mainly due to greater spending on fees for studies and projects (regasification plant), subscriptions and memberships, as well as legal fees and consulting services, partially offset by lower expenses for IT services and fees paid to related parties. – Higher taxes, fees and contributions of COP 187 M (9.8%), mainly due to increases in the public lighting tax and the financial transactions tax (GMF), partially offset by reductions in property tax. – The foregoing increases were offset by lower depreciation, amortization and provision expenses of COP -11,655 M (-48.2%), explained by: i) a reduction resulting from the reversal of disputed items generated by certain shippers due to discrepancies regarding amounts invoiced for gas transportation services, amounting to COP -17,397 M, ii) an increase of COP 4,398 M in the amortization of software, licenses and intangible assets, iii) an increase of COP 933 M in provisions for litigation, claims and contingencies, iv) an increase of COP 427 M in depreciation expense related to rights of use of real estate, buildings and computer equipment, and v) a COP 16 M reduction in inventory provisions. – Meanwhile, net other income/expenses showed a positive variation of COP 22,537 M (+476.3%), due to higher income from the recovery of bank guarantees related to disputed items with EPM, the 2020 contribution to the Superintendency of Public Utilities, and the recovery of losses. Throughout 2026, we have continued our efforts to sustain the efficiencies achieved through the transformation program as a key strategic pillar for improving financial results. We have realized impacts through the optimization of operations and maintenance processes, which have enabled us to achieve excellent results in reducing fuel gas consumption, which continues to be a significant component of TGI’s expenses but has improved by nearly 50% compared with the 2022–2024 average. We are in the process of implementing productivity improvement initiatives for field teams, optimizing the insurance program, and pursuing other relevant initiatives that we
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4 expect will help ensure the achievement of the targets set for 2026 and continue to generate value for our shareholders. As of the end of 2Q26, the efficiency pillar incorporated 28 new initiatives into the portfolio. Of these, 15 are currently progressing in their implementation, with identified cumulative impacts of COP 3,461 M, while the remaining initiatives continue to be developed through the definition of their business cases and work plans. Currently, the portfolio as a whole has 10 Opex initiatives under execution, with realized impacts of COP 4,515 M, equivalent to 90% of the June target and 30% of the annual target. As the outstanding business cases are completed, achievement of the year’s objectives is expected to accelerate. Additionally, initiatives related to insurance, gas sales, and optimization of fuel gas consumption are expected to be incorporated, with their benefits contributing to the achievement of the annual target. Regarding Capex, the portfolio includes three initiatives that have been under development since 2025, whose impacts will materialize during 2026, as well as five new initiatives with the potential to generate benefits during the current year. In total, op portunities amounting to COP 5,767 M have been identified, of which COP 2,635 M already have validated impacts for 2026. In parallel, the business cases for five additional initiatives continue to be developed, and these are expected to contribute to the achievement of the targets established for the year. EBITDA Table N°6 – EBITDA COP Millions 2Q25 2Q26 Var Var % 6M25 6M26 Var Var % EBITDA 376,537 314,530 -62,007 -16.5% 752,016 653,916 -98,100 -13.0% EBITDA Margin 74.8% 70.4% -4.4 pp 75.2% 71.7% -3.5 pp EBITDA decreased by COP 62,007 M (-16.5%) year-over-year, due to a decrease of COP 56,613 M (-11.2%) in operating revenues resulting from the adjustment of transportation service contracting to structural demand following the decline in industrial demand, as well as the reduction in the WACC to 10.94%, and a net increase of COP 5,394 M (4.3%) in operating costs and expenses before depreciation and amortization. Operating costs decreased by COP 23,526 M ( -23.5%), offset by an increase of COP 28,920 M (+108.4%) in operating expenses. Net Non-Operating Result The net non -operating result went from COP -87,754 M in 2Q25 to COP -106,165 M in 2Q26, representing a variation of COP -18,411 M (21.0%), mainly explained by: – An increase of COP 9,644 M (9.3%) in finance costs due to: i) higher costs of COP 7,585 M in 2Q26 compared with 2Q25, related to finance costs on the bonds and the valuation of the foreign exchange risk hedge for the financial instruments associated with the USD 547 M international bond, ii) lower interest expense of COP 1,661 M in 2Q26 compared with 2Q25 on the loan entered into with local financial institutions under the “Club Deal” structure, as a result of a COP 80,507 M decrease in the outstanding loan balance, a 99-bp reduction in the loan spread, and a 197-bp increase in the reference interest rate (3M IBR), iii) the effect of the financial update of the decommissioning provision, which decreased by COP 381 M in 2Q26 compared with 2Q25, and iv) an increase of COP 4,101 M in other finance costs.
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5 – A reduction of COP 4,070 M (-27.2%) in finance income, mainly explained by lower cash and investment balances, with an average of approximately COP 660,000 M in 2Q25 compared with approximately COP 407,000 M in 2Q26, combined with a 70 -bp reduction in the U.S. dollar reference interest rate (FED) between 2Q26 and 2Q25. These reductions were partially offset by an increase of more than 190 bps in the peso reference interest rate (IBR) between 2Q26 and 2Q25. – An increase of COP 4,007 M (282.9%) in the equity method expense, which went from COP 1,416 M in 2Q25 to COP -2,591 M in 2Q26, due to weaker results at Contugas in 2Q26 compared with 2Q25. – An increase of COP 689 M (58.1%) in the net foreign exchange difference result, explained by: i) an increase of COP 2,367 M in the net foreign exchange difference result on cash, cash equivalents, and fixed-income financial instruments, ii) a decrease of COP -1,086 M in the net foreign exchange difference result on international bonds and their hedge, and iii) a decrease of COP -592 M in the net foreign exchange difference result from other items such as trade receivables, suppliers, accounts payable, and other items. Taxes Income tax decreased by COP 11,691 M (-22.9%) between 2Q25 and 2Q26, mainly due to a COP 19,294 M reduction in current income tax in 2Q26 compared with 2Q25, resulting from lower taxable income, and an increase in deferred tax, which went from deferred tax income of COP 1,246 M in 2Q25 to deferred tax expense of COP 6,356 M in 2Q26. Net Income Net income decreased by COP 38,900 M (-34.0%), from COP 114,282 M in 2Q25 to COP 75,383 M in 2Q26. This variation was mainly attributable to lower operating revenues resulting from lower customer contracting associated with the decline in industrial demand due to energy substitution, in a context of lower gas supply, high gas molecule prices, and the change in WACC to 10.94% effective April. Debt Profile Table N°7 – Key Debt Items COP Millions 2025 2Q26 Var Var % Net Total Debt 2,414,436 2,401,845 -12,591 -0.5% Gross Total Debt 2,806,927 2,648,797 -158,130 -5.6% LTM EBITDA* 1,529,741 1,431,641 -98,100 -6.4% LTM Financial Expenses* 417,625 424,830 7,206 1.7% Coverage Ratios Gross Debt / EBITDA* 1.83x 1.85x 0.02x Net Debt / EBITDA* 1.58x 1.68x 0.10x EBITDA* / Financial Expenses* 3.66x 3.37x -0.29x *Corresponds to the last twelve months (LTM) EBITDA and financial expenses .
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6 During 4Q25, COP 740,000 M of the “Club Deal” loan entered into in 2023 was refinanced. The new loan was entered into with local financial institutions in December 2025 under the “Club Deal” structure, to repay the outstanding balance of the previous “Club Deal” loan entered into in 2023. The terms of the new loan are as follows: Details Amount Structure: Club Deal Original loan amount: COP 740,000 M Current loan amount: COP 740,000 M Disbursement date: December 19, 2025 Maturity date: December 19, 2032 Tenor: Seven (7) years Interest rate: IBR 3M + 1.81% Principal repayment: At maturity Net leverage reached 1.68x, and interest coverage was 3.37x as of the end of 2Q26, reflecting a slight increase in the net leverage ratio and a reduction in the interest coverage ratio compared with the ratios reported at year-end 2025. The increase in net leverage is mainly attributable to the greater relative reduction ( -6.4%) in LTM EBITDA as of 2Q26, amounting to COP -98,100 M, compared with the 0.5% reduction in net debt (Gross Debt - Cash and Cash Equivalents), which decreased from COP 2.414 trillion in December 2025 to COP 2.401 trillion in June 2026. This was due to a decrease in cash and cash equivalents from COP 392,491 M in December 2025 to COP 246,952 M in June 2026, as well as a reduction in gross debt from COP 2.807 trillion to COP 2.649 trillion between December 2025 and June 2026. During the same period, the outstanding bond balance decreased from COP 2.054 trillion to COP 1.881 trillion as a result of the reduction in the Representative Market Exchange Rate (TRM). The reduction in the interest coverage ratio is attributable to a COP 98,100 M (-6.4%) decrease in LTM EBITDA, while LTM finance costs increased by COP 7,206 M (1.7%) between the end of 4Q25 and the end of 2Q26. Table N°8 – Debt Profile COP Millions Amount COP M Currency Coupon (%) Maturity International Bonds 1,880,797 USD M 5.55% Nov 1, 2028 Club Deal Financial Loan 740,000 COP M IBR 3M + 1.81% Dec 19, 2032 Renting 4,355 COP M DTF E.A. + 2% Apr 1, 2026 IFRS 16 Financial Liability 53,474 COP M 14.49% Dec 31, 2026 During the quarter, the foreign exchange risk hedging transaction using derivative financial instruments entered into in 2Q23 remained in place, under the following terms: Nov-2028 Bond Financial instrument: CCS Swap Maturity date: November 01, 2028 Exchange rate: COP 4,182.33 Notional amount COP: COP 2,290,449 M Right leg rate: Fixed + 5.55% Obligation leg rate: IBR + 3.6166%
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7 As a result of the hedges and the refinancing of the outstanding peso-denominated “Club Deal” loan, the average interest rate on financial liabilities is 14.04% in pesos. Commercial Performance Revenue by Sector Table N°9 – Revenue Composition by Sector 2Q25 2Q26 6M25 6M26 Residential – Distributor 78.7% 70.8% 76.8% 71.4% Industrial 14.3% 19.8% 16.1% 19.6% NGV (Natural Gas Vehicles) 0.9% 3.5% 0.8% 3.1% Commercial 2.4% 2.3% 2.4% 2.3% Thermal Power Plants 2.1% 2.3% 2.3% 2.2% Refinery 1.7% 1.3% 1.6% 1.4% Petrochemicals 0.0% 0.0% 0.0% 0.0% Total 100.0% 100.0% 100.0% 100.0% The residential and distribution sector accounted for 70.8% of sector revenue in 2Q26 and experienced a COP 84,905 M ( -21.8%) decrease in revenue, explained by the reduction in industrial demand embedded within the distribution system, with revenue decreasing from COP 755,967 M in 2Q25 to COP 628,276 M in 2Q26. Meanwhile, the industrial and CNG sectors, which together accounted for 23.3% of sector revenue in 2Q26, increased by COP 14,464 M (20.6%) and COP 10,561 M (243.3%), respectively. In turn, revenue fr om the commercial, thermal generation, and refinery sectors decreased by 15.8%, 5.0%, and 30.1% (COP -1,885 M, COP -516 M, and COP -2,462 M), respectively. Contractual Structure Table N°10 – Firm Contract Structure 2Q25 2Q26 No. of Active Contracts 569 802 No. of Firm Contracts 392 494 No. of Interruptible Contracts 177 308 Remaining Life Contracts in (Average years) 2.6 3.3
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8 The number of active contracts increased by 40.9% between 2Q25 and 2Q26, from 569 to 802 contracts. This increase is explained by the contracting of smaller volumes over the short term, thereby increasing the number of contracts. The increase in contracts was concentrated in both firm and interruptible contracts, which increased by 102 and 131 contracts, respectively. As of the end of 2Q26, 61.6% of contracts were firm and 38.4% were interruptible, with firm contracts having a weighted average firmness of 88% for fixed charges and 12% for variable charges. As of June 2026, the company had contracted 64.2% of its available capacity. Chart No. 1 – Remaining Contract Life The sector’s usual contracting cycle, under the current regulatory framework, is structured around quarterly and monthly periods, currently reflecting a short-term contractual cycle (maximum of one year), explained by the limited availability of long -term gas supply contracts. The regulations governing gas molecule commercialization were recently made more flexible, allowing short-term transportation contracts to be aligned with the terms of gas supply contracts. Operational Performance Table N°11 – Selected Operational Indicators 2Q25 2Q26 Var % Total Capacity – Mpcd 859 862 0.3% Firm and Interruptible Contracted Capacity – Mpcd* 627 551 -12.1% Average Transported Volume – Mpcd 455 411 -9.8% Utilization Factor 57.8% 49.9% -7.8 pp Availability 100.0% 100.0% 0.0 pp Pipeline Length – km 4,033 4,033 0.0% *Measured as firm contracted capacity from production fields to delivery points .
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9 TGI’s transportation infrastructure remained stable during the period under review, with total transportation capacity of 862 Mpcd in 2Q26, slightly above the 859 Mpcd recorded in 2Q25. Likewise, the length of the pipeline network remained at 4,033 km, of which 3,883 km are directly operated by TGI and 150 km by a third party. The system is primarily supplied with natural gas from the Cusiana, Cupiagua, and Ballena/Chuchupa basins, as well as from transfers between transporters at Promigas-Ballena. Meanwhile, average transported volume in 2Q26 was 411 Mpcd, representing a 9.8% decrease from the 455 Mpcd recorded in the same period of the previous year. As a result of this trend, the utilization factor decreased from 57.8% to 49.9%, equivalent to a re duction of 7.8 percentage points. System availability, meanwhile, remained at 100% throughout 2Q26, reflecting the continuity and reliability of the transportation infrastructure operated by TGI. Table N°12 – Volume by Transporter (Mpcd) 2Q25 Part % 2Q26 Part % Var % Var Mpcd TGI 455.0 52.1% 410.5 46.5% -9.8% -44.5 Promigas 364.0 41.7% 416.4 47.2% 14.4% 52.4 Others 54.0 6.2% 55.6 6.3% 2.9% 1.6 Total 873.0 100.0% 882.5 100.0% 1.1% 9.5 During 2Q26, TGI’s average transported volume reached 411 Mpcd, 44.5 Mpcd below the average transported volume in 2Q25. As a result, TGI’s share of total transported volume nationwide decreased from 52.1% in 2Q25 to 46.5% in 2Q26, equivalent to a 9.8% reduction. Overall, the sector recorded an increase of 9.5 Mpcd, from 873 Mpc d to 882.5 Mpcd between 2Q25 and 2Q26. Table N°13 – Total Transportation Capacity of the TGI System Capacity Mpcd Ballena – Barracabermeja 260.0 Mariquita – Gualanday 20.1 Gualanday – Neiva 11.0 Cusiana – Porvenir 470.0 Cusiana – Apiay 70.6 Apiay – Usme 18.2 Morichal – Yopal 11.8 Total 861.7 Capacity is measured based on pipeline sections with gas supply entry points .
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10 Projects Under Execution Investments in the project portfolio during 2Q26 amounted to COP 13,637 M, representing a decrease of COP 8,116 M compared with 2Q25. This variation is mainly explained by the greater progress achieved during the second quarter of 2025 in the execution of activities associated with the IPAT Capacity Expansion – Mariquita–Gualanday and the IPAT Jamundí Branch Capacity Expansion projects. Natural Gas Supply Plan Projects (IPAT1) During 2Q26, progress continued on the Closing and Transfer activities for the IPAT projects Jamundí Branch – Valle del Cauca Transportation Capacity Expansion and Transportation Capacity on the Mariquita–Gualanday Section: Description Mariquita–Gualanday Expansion Jamundí Branch Expansion Ballena– Barrancabermeja Bidirectionality Capex USD 9.0 M USD 8.0 M USD 5.0 M Transportation Capacity Up to 20 Mpcd 3 Mpcd 100 Mpcd 2Q25 UPME audit issued the third compliance report on project schedule and S- curve progress UPME audit issued the third compliance report on project schedule and S- curve progress Project completed; no updates 3Q25 UPME audit issued the fourth compliance report on project schedule and S-curve progress UPME audit issued the fourth compliance report on project schedule and S-curve progress Project completed; no updates 4Q25 UPME audit certified the Project’s Actual Commercial Operation Date as November 29, 2025 UPME audit certified the Project’s Actual Commercial Operation Date as November 26, 2025 Project completed; no updates 1Q26 Progress in project closing and transfer activities Progress in project closing and transfer activities Project completed; no updates 2Q26 Contract settlement and administrative and financial close-out of the projects Contract settlement and administrative and financial close -out of the projects Project completed; no updates After TGI successfully completed the Information Completeness stage defined by the Energy and Gas Regulatory Commission (CREG) in January 2026, as of the end of the second quarter of 2026, the entity was conducting the technical evaluation stage for the fo llowing IPAT projects, in accordance with the 2023–2032 Natural Gas Supply Plan: 1. Gas pipeline to connect Bogotá to the Magdalena Medio National Transportation System (SNT) 2. Transportation capacity expansion on the Centauros–Granada section 1 IPAT: Investments in priority projects of the supply plan in a transportation system . Ir a Pies de página en anexo 6
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11 3. Transportation capacity expansion on the Gualanday–Neiva section 4. Transportation capacity expansion in the La Belleza –El Porvenir –Cusiana direction, with a connection to the Cusiana–Apiay section 5. Bidirectionality on the Vasconia–La Belleza section (capacity expansion toward La Belleza) 6. Bidirectionality on the Vasconia–Mariquita section (capacity expansion toward Vasconia) 7. Yumbo–Mariquita bidirectionality Regarding the IPAT project for LNG storage and regasification infrastructure in La Guajira with a connection to the SNT, UPME informed the Company of the results of the technical evaluation, concluding that the project meets the characteristics and requirements established in the 2023– 2032 Natural Gas Supply Plan. Regulatory Update Table N°14 - Regulatory Update Entity Resolution Scope Status + CREG Resolution No. 102 023 of 2026 Remuneration of hydrocarbons converted to gas pipelines Published See more CREG Resolution 102 024 of 2026 Amends the commercialization of supply and establishes transitional provisions regarding the commercialization of natural gas transportation Published See more Ministry of Energy and Mines Resolution 40267 of 2026 Resolution 40267 of 2026 | Natural gas measures related to SPEC LNG maintenance Published See more UPME Various filings Comments and/or requests for clarification during the Technical Evaluation Stage of the proposal submitted by TGI S.A. E.S.P. for the IPAT projects: transportation capacity expansions on the Centauros–Granada, Gualanday–Neiva, and La Belleza–El Porvenir–Cusiana sections, and bidirectionality on the Vasconia–Mariquita and Vasconia–La Belleza sections. For the LNG Regasification Plant in La Guajira, the results of the project’s technical evaluation were obtained. Notified NA Ir a Pies de página en anexo 6
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12 Annex 1. Financial Statements COP Millions Variation Table N°15 - Income Statement 2Q25 2Q26 COP % 6M25 6M26 Var Var % Revenue 503,434 446,821 -56,613 -11.2% 999,535 911,996 -87,540 -8.8% Operating Costs -204,323 -185,163 19,160 -9.4% -400,942 -371,226 29,716 -7.4% Gross Profit 299,111 261,659 -37,452 -12.5% 598,593 540,770 -57,824 -9.7% Gross Margin 59.4% 58.6% -0.9 pp 59.9% 59.3% -0.6 pp Administrative and Operating Expenses (Net) -46,115 -40,843 5,272 -11.4% -99,274 -89,987 9,287 -9.4% Personnel Expenses -9,980 -10,527 -547 5.5% -19,945 -22,383 -2,437 12.2% General Expenses -14,792 -42,979 -28,186 190.6% -30,265 -65,957 -35,691 117.9% Taxes -1,907 -2,094 -187 9.8% -3,800 -10,398 -6,598 173.6% Depreciation, Amortization, and Provisions -24,168 -12,513 11,655 -48.2% -51,674 -23,050 28,624 -55.4% Other Expenses 0 0 0 0.0% 0 0 0 0.0% Other Income/Expenses 4,732 27,269 22,537 476.3% 6,411 31,800 25,390 396.1% Operating Profit 252,996 220,815 -32,180 -12.7% 499,319 450,783 -48,537 -9.7% Operating Margin 50.3% 49.4% -0.8 pp 50.0% 49.4% -0.5 pp Financial Costs -102,951 -112,596 -9,645 9.4% -208,091 -215,297 -7,206 3.5% Financial Income 14,968 10,898 -4,070 -27.2% 29,209 21,326 -7,882 -27.0% Net Foreign Exchange Difference -1,187 -1,877 -689 58.1% 332 -2,359 -2,691 -810.6% Share of Results of Associates 1,416 -2,591 -4,007 -282.9% 579 -6,413 -6,992 - 1208.3% Income Before Income Tax 165,242 114,651 -50,591 -30.6% 321,348 248,040 -73,307 -22.8% Income Tax -52,206 -32,912 19,294 -37.0% -136,785 -108,423 28,362 -20.7% Deferred Tax 1,247 -6,356 -7,602 -609.9% 23,055 19,078 -3,977 -17.2% Net Income 114,282 75,383 -38,900 -34.0% 207,618 158,696 -48,922 -23.6% Net Margin 22.7% 16.9% -5.8 pp 20.8% 17.4% -3.4 pp
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13 COP Millions Variation Table N°16 - Balance Sheet Dec-25 Jun-26 Var Var % Assets Current Assets Cash and Cash Equivalents 348,792 189,105 -159,687 -45.8% Financial Assets 43,699 41,439 -2,261 -5.2% Customer Receivables and Other Receivables 211,337 195,811 -15,526 -7.3% Current Tax Assets 65,070 65,070 N.A. Inventories 103,914 104,015 101 0.1% Other Non-Financial Assets 48,752 81,815 33,063 67.8% Total Current Assets 756,494 677,254 -79,240 -10.5% Non-Current Assets Property, Plant and Equipment 8,292,733 8,169,191 -123,542 -1.5% Right-of-Use Assets 22,650 50,057 27,407 121.0% Investments in Associates and Subsidiaries 40,006 30,626 -9,379 -23.4% Trade Receivables and Other Receivables 44,804 46,143 1,339 3.0% Intangible Assets 650,039 645,304 -4,735 -0.7% Other Financial / Non-Financial Assets 36,510 9,895 -26,615 -72.9% Total Non-Current Assets 9,086,741 8,951,216 -135,525 -1.5% Total Assets 9,843,235 9,628,470 -214,764 -2.2% Liabilities Current Liabilities Accounts Payable to Suppliers and Other Accounts Payable 95,871 111,943 16,072 16.8% Taxes Liabilities 87,273 0 -87,273 -100.0% Employee Benefits 18,034 18,269 235 1.3% Current Financial Liabilities 28,697 20,141 -8,557 -29.8% Provisions 75,759 0 -75,759 -100.0% Lease Liabilities 14,995 33,383 18,388 122.6% Other Financial Liabilities 39,261 47,926 8,665 22.1% Accounts Payable to Related Parties 18,057 233,953 215,896 1195.6% Total Current Liabilities 377,947 465,615 87,668 23.2% Non-Current Liabilities Accounts Payable to Suppliers and Other Accounts Payable 5 5 0.0% Financial Liabilities 740,000 741,208 1,208 0.2% Provisions 354,247 360,887 6,640 1.9% Deferred Tax Liabilities 1,887,934 1,844,076 -43,859 -2.3% Financial Instruments Liabilities 257,491 509,821 252,329 98.0%
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14 Lease Liabilities 8,370 23,645 15,275 182.5% Bonds Issued 2,054,356 1,881,536 -172,819 -8.4% Other Liabilities 17,136 4,298 -12,837 -74.9% Total Non-Current Liabilities 5,319,534 5,365,476 45,937 0.9% Total Liabilities 5,697,481 5,831,091 133,605 2.3% Equity Share Capital 1,565,487 1,565,487 0 0.0% Share Premium 196 196 0 0.0% Reserves 997,612 1,048,510 50,898 5.1% Current Period Result 508,983 158,696 -350,288 -68.8% Retained Earnings -288,114 -288,114 0 0.0% Other Comprehensive Income Items -940,566 -989,551 -48,985 5.2% Cumulative Translation Adjustment 2,302,155 2,302,155 0 0.0% Total Equity 4,145,753 3,797,379 -348,374 -8.4% Total Liabilities and Equity 9,843,235 9,628,470 -214,769 -2.2%
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15 COP Millions Table N°17 - Cash Flow Statement Jun-25 Jun-26 Cash Flows from Operating Activities Net Income 207,618 158,696 Adjustments for: Depreciation and amortization 220,105 229,742 Unrealized foreign exchange differences -332 2,359 Employee benefits -2,447 -2,106 Amortized cost (loans, deposits) 0 0 Amortized cost of BOMT purchase option 0 0 Amortized cost of financial obligations -1,126 1,208 Valuation of hedging operations 84,493 105,601 Valuation of decommissioning obligation 5,941 5,095 Deferred tax -23,055 -19,078 Income tax 136,785 108,423 Finance costs 118,783 103,393 Finance income -26,762 -19,220 Equity method valuation -579 6,413 Loss on property, plant, and equipment 137 0 Inventory impairment 0 10 Accounts receivable impairment 5,697 -10,258 Provisions (Recoveries) -8,325 -27,830 Net changes in operating assets and liabilities (Increase) Decrease in trade receivables and other receivables 33,322 -109 (Increase) Decrease in inventories -317 -112 (Increase) Decrease in other non-financial assets 13,984 -6,448 (Increase) Decrease in other financial assets 0 16,428 (Increase) Decrease in trade payables and other payables 18,383 54,789 (Increase) Decrease in other employee-related liabilities -1,292 2,342 (Increase) Decrease in other financial liabilities 0 0 (Increase) Decrease in estimated liabilities and provisions -595 -46,383 (Increase) Decrease in tax liabilities -11,583 -14,528 Interest paid -116,263 -102,708 Interest paid to related parties 0 0 Interest paid on hedging instruments -82,326 -95,755 Interest received 0 0 Lease payments -15,210 -12,523 Taxes paid -282,069 -261,230 Net cash provided by operating activities 272,967 176,211 Cash Flows from Investing Activities Investments in Associates 0 0 Property, plant and equipment -103,224 -86,749 Intangible assets -272 -1,409 Financial assets 0 -17,524 Net cash used in investing activities -103,496 -105,682 Cash Flows from Financing Activities Dividends paid 0 -229,052 Repayment of financial obligations -50,794 0 Repayment of related-party financial obligations 0 0 Financial obligations obtained 0 0 Net cash used in financing activities -50,794 -229,052 Effect of exchange rate fluctuations on cash and cash equivalents -1,235 -1,165 Net change in cash and cash equivalents 117,442 -159,688 Cash and cash equivalents at the beginning of the year 476,609 348,793 Cash and cash equivalents at the end of the period 594,051 189,105 Appendix 2. Legal Notice and Disclaimers
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16 This document contains words such as “anticipate,” “believe,” “expect,” “estimate,” and other similar expressions. Any information other than historical facts, including, without limitation, information regarding the Company’s financial position, business strategy, management’s plans and objectives, constitutes forward-looking statements. The forward-looking statements in this report were prepared based on assumptions related to the economic, competitive, regulatory, and operational environment of the business and considered risks that are beyond the Company’s control. Such statements are i nherently uncertain and may not materialize. Unexpected events or circumstances may also occur. For the foregoing reasons, actual results may differ materially from those expressed herein. Accordingly, the forward-looking statements in this report should n ot be regarded as guarantees of future performance. Potential investors should not rely on these forward -looking statements and estimates when making investment decisions. The Company expressly disclaims any obligation or commitment to distribute updates or revisions to any forward-looking statements contained in this document. The Company’s past performance should not be taken as an indication of future results. Annex 3. Terms and Definitions ANLA: National Environmental Licensing Authority. ASME: American Society of Mechanical Engineers. BEO (Electronic Operations Bulletin): Publicly accessible website displaying commercial and operational information related to a transporter’s services, including regulated tariffs, negotiated charges between market agents, the nomination cycle, transportation schedule, capacity release and gas supply offers, energy balance accounts, and any other information established by the RUT. Interruptible Contract: A written agreement in which the parties do not assume a continuity commitment for the delivery, receipt, or use of available natural gas supply or transportation capacity during a specified period. The service may be interrupted by either party at any time and under any circumstance, upon prior notice to the other party. Firm Contract: A written agreement in which an agent guarantees the supply of a maximum quantity of natural gas and/or maximum transportation capacity, without interruption, during a specified period, except on scheduled maintenance days. This type of contract requires physical backing. CREG: Energy and Gas Regulatory Commission of Colombia. GBTUD: Giga British Thermal Unit per Day. IPAT: Investments in priority supply plan projects within a transportation system. MBTU: Thousand British Thermal Units. M: Millions. MM: Billions. MME: Ministry of Mines and Energy. Mpcd: Million cubic feet per day (Mcfpd). Average – Mpcd: Average daily transported volume during the quarter. pp: Percentage points. SSPD: Superintendence of Residential Public Utilities. UPME: Mining and Energy Planning Unit.