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H1 2026 RESULTS PRESENTATION July 29th, 2026
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H1 2026 | Results Presentation Accelerating growth; 2026 Op. Net Profit guidance increased to €1,110 – €1,155mn (+30-35%) (prev: +20-25%) ✓ Waterford project: Key investment in the development of ACS’ DC pipeline ✓ Coravel reached milestone of first 140MW IT hyperscale commercialization at Dallas Fort Worth ✓ S&P credit rating upgrade to BBB (ACS, HOCHTIEF, CIMIC) on strong business fundamentals 2 H1 2026 Overview Continued growth in new orders to €36.6bn, up 19.1% FX-adj. ✓ 1.3x LTM book to bill and over two years of backlog visibility ✓ Record order backlog of €105.9bn, up 21% on a comparable basis ✓ €21.9bn of backlog in Data Centers, up c.88% yoy Outstanding LTM Net Operating Cash Flow ("NOCF”) of €2.3bn ✓ EBITDA increased 14.2% FX-adj. to €1,618mn ✓ Strong working capital performance; strong H1 movements despite characteristic seasonality ✓ NOCF pre-factoring LTM delivers CAGR of 37.3% in the last five years Strong Operational Net Profit(1) of €510mn, up 30.1% (+34.2% FX-adj.) ✓ Sales growth of 12% FX- adj. ✓ Continued improvement in Group operating margin, supported by strong expansion at Turner and E&C ✓ Net profit nominal of €510mn Net Debt shows strong improvement of €3.2bn yoy ✓ Net cash position of €1.0bn on the back of exceptional cash performance ✓ €668mn invested in H1 2026, including €497mn in DC projects partially offset by divestments ✓ Successful €1.7bn ABB offering supports acceleration of growth investment strategy and balance sheet strength Note: (1) Operational Net Profit (formerly referred to as Ordinary NPAT) adjusts for restructuring costs mainly in CIMIC and E&C, offset by one-off financial items at ACS HQs. 31. 36.6 1 2025 1 2026 New orders (€bn)Operational Net Profit(1) (€mn) 392 510 1 2025 1 2026 Operating Cash Flow LTM (€mn) +15.3%/ +19.1% FX-adj. 293 55 (30 0 1 0 2 0 3 0 0 1 2025 1 2026 +162mn yoy+30.1%/ +34.2% FX-adj.
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H1 2026 | Results Presentation Euro Million H1 2025 H1 2026 yoy yoy FX-adj. Sales 24,108 26,168 8.5% 12.0% EBITDA 1,434 1,618 12.8% 14.2% % margin 5.9% 6.2% 24 bps PBT 708 909 28.4% 31.7% % margin 2.9% 3.5% 54 bps Net profit nominal 450 510 13.3% 16.9% EPS 1. 6 € 1.95 € 10.7% 14.2% New orders 31,722 36,575 15.3% 19.1% Order backlog 89,342 105,856 18.5% 14.3% Non-operational factors (58) 0 Operational net profit 392 510 30.1% 34.2% (2) (1) Sales growth of 12.0% yoy FX-adj. EBITDA of €1,618mn, up 14.2% FX-adj., with strong operating margin expansion across businesses and at Group level, driven by Turner’s outperformance and increased Digital Infrastructure activity Operational Net Profit increased by 30.1% or 34.2% FX-adj, to €510mn Backlog increased 21% on a comparable basis (adjusted for the sale of a 50% stake in UGL Transport) €26.2bn 65% 20% 15% 1% ort America Asia aci c Europe o 3 Comparable Profit Before Tax (€mn)(3) Sales by region H1 2026 693 909 1 2025 1 2026 +31.2% Notes: (1) Avg. FX rates: H1 2025: 1.1002 USD/EUR, 1.7320 AUD/EUR. H1 2026: 1.1673 USD/EUR, 1.6569 AUD/EUR. (2) Non-operational factors include: In H1 2025: (i) one-off results in ACS HQ mainly related to the recognition of Group tax positions and (ii) restructuring costs in Dragados and CIMIC. In H1 2026: restructuring costs mainly in CIMIC and E&C, offset by one-off financial items at ACS HQs. (3) Comparable PBT in H1 2025 adjusts for UGL Transport contribution to CIMIC. P&L and operating KPIs
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H1 2026 | Results Presentation 4 Euro Million H1 2025 H1 2026 yoy yoy FX-adj. Turner 227 321 41.8% 50.4% CIMIC 91 93 2.6% (1.8%) Engineering & Construction 93 129 37.9% 40.8% Infrastructure 91 92 1.4% 1.7% HQs and other (109) (125) Operational net profit 392 510 30.1% 34.2% Net profit nominal 450 510 13.3% 16.9% EPS 1. 6 € 1.95 € 10.7% 14.2% (2)(1) Operational Attributable Net Profit breakdown Strong Operational Net Profit growth of 30.1% (34.2% FX- adj) Turner’s attributable Operational Net Profit grew by 50.4% FX-adj, driven by the accelerating digital infra activity and margin expansion CIMIC delivered €93mn, stable yoy on a comparable basis(1) E&C’s attributable Net Profit increased 41% FX-adj, reflecting a higher contribution by FlatironDragados and solid results at Hochtief Europe Restructuring costs of €12mn mainly at CIMIC and E&C to drive operating efficiencies and synergies Notes: (1) For business segment comparison purposes, we have adjusted CIMIC for UGL Transport’s contribution in H1 2025, with a corresponding adjustment in HQs, and no impact at a consolidated level. (2) Avg. FX rates: H1 2025: 1.1002 USD/EUR, 1.7320 AUD/EUR. H1 2026: 1.1673 USD/EUR, 1.6569 AUD/EUR. 1. 6 1.95 1 2025 1 2026 Earnings Per Share (EPS) (€/share) +10.7% yoy
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H1 2026 | Results Presentation 5 Cash flow performance Net Operating Cash Flow pre-factoring LTM (€mn) Euro Million H1 2025 H1 2026 yoy EBITDA 1,434 1,618 +184 Operating WC pre-factoring variation (789) (675) +114 Taxes, interests, associates and other (169) (433) -264 Operating Cash Flow (OCF) pre-factoring 476 510 +34 Net capex and op. leases (409) (479) -70 NOCF pre-factoring 67 32 -35 Factoring variation (183) (56) +127 Net Operating Cash Flow (NOCF) (116) (24) +92 58 8 3 1,5 5 1,811 2,0 1 2022 T 1 2023 T 1 202 T 1 2025 T 1 2026 T 37.3% CAGR Outstanding sustained cash generation, with improving Net Operating Cash Flow, supported by a robust EBITDA performance Strong working capital performance despite usual H1 seasonality Tax timing effects in CIT collections, and slightly higher cash interest expense due to increased data center investment Net capex & operating leases slightly increased in line with revenue growth On a pre-factoring basis, NOCF LTM reached €2.1bn, growing at a CAGR of 37.3% over the past 5 years Operating Cash Flow (€mn) 293 55 (30 0 1 0 2 0 3 0 0 1 2025 1 2026 +162mn yoy
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H1 2026 | Results Presentation Net cash position of €1bn, a strong improvement of €3.2bn yoy, driven by outstanding LTM NOCF performance and the successful €1.7bn ABB offering Continued investments in Data Centers supported by strong NOCF generation and balanced by divestment proceeds €746mn DC projects investments over the LTM period, of which €497mn in the semester including Waterford development €408mn allocated to shareholder remuneration over the LTM period (2,202 1,006 et Debt un 25 et peratin Cas o ( C inancia in estments inancia di estments ABB fferin are o ders remuneration & ot er et Debt un 26 2,30 83 (1, 30 ( 08 95 1, 03 6 Notes: (1) The remaining €51mn transaction payment is expected to be collected within 12 months of the transaction date, subject to obtaining change-of-control approvals for certain contracts. (2) The gross financial investments / divestments breakdown presented here is a simplification of the statutory cash flow, mainly to account for the net proceeds from/contributions related to the DC platform JV. (3) Shareholder remuneration in H1 2026 LTM includes: €217mn of dividends distributed in cash to ACS shareholders, €78mn of dividends distributed to HOCHTIEF minority interests, €113mn of dividends distributed to other minority interests. +€3,208 mn yoy Financial position (3) Figures in millions of euros Net financial investments (€mn) Euro Million H1 2026 LTM H1 2026 Data Center net investments (746) (497) Abertis capital contribution (200) - Other infra net equity investments (345) (86) M&A and other net investments (139) (85) Financial investments (1,430) (668) DC platform 428 428 UGL Transport 50% sale 229 109 Final settlement ACS Industrial 300 - Financial divestments 957 537 Net financial investments (473) (131) (1) (2)
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H1 2026 | Results Presentation 7 S&P credit rating update to BBB Credit rating upgrades for ACS, HOCHTIEF and CIMIC on strong business fundamentals Long term Short term Outlook BBB A-2 Stable Date of assessment: 28 July 2026 Factors underpinning the upgrade ▪ Stronger business profile and credit metrics ▪ Robustness of our financing structure ▪ Simplified corporate structure ▪ Reduced minority interest position including acquisition of the remaining stake to achieve 100% ownership of Thiess ▪ Enhanced visibility over cash flow generation and stabilityBBB+ BBB BBB- BB+ BB 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 ACS Current rating Improved financing conditions and lower financing costs
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H1 2026 | Results Presentation 86. 89.3 105.9 1 202 1 2025 1 2026 +10.5% 8 Notes: (1) Biopharma, Health and Education. New orders and order backlog New orders (€bn) Order backlog development (€bn) 2 .5 31. 36.6 1.2 1.2 1.3 1 202 1 2025 1 2026 e orders Boo to bi T CAGR FX-adj. €105.9bn AI, Di ita & Tec 22% ustainab e obi it 8% Transport 15% Ener Infrastructure 2% B E 13% Defense % enera Bui din 1 % Critica inera s & atura esources 10% t er 9% High backlog visibility of over 24 months and book to bill ratio of 1.3x LTM Continued strong growth in new orders to €36.6bn, up 19.1% FX-adj. yoy, driven by strong momentum in Data Centers, particularly in Turner Record order backlog of €105.9bn, up 21% yoy on a comparable basis; AI, Digital & Tech increased 89% yoy and now represents 22% of the total Other growth sectors such as Defense, Critical Minerals, Energy and Sustainable Infrastructure and General Building also remain very strong. They are collectively growing strongly at 34% yoy and represent 27% of total (1)
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H1 2026 | Results Presentation AI, Digital & Technology o Richland Parish Meta Data Center, Expansion from 2 GW to 5 GW of IT capacity, Meta's largest campus, Louisiana, USA(1) o NTT Data Center, construction of a 36 MW facility valued at several hundred million euros; Berlin, Germany(1) o 1 GW Meta Data Center, 4m sq ft state-of-the-art campus supporting core digital infra and AI workloads, >$10bn investment, built to achieve U.S. Green Building Council LEED Gold certification, Indiana, USA o Data Center, main works contract from repeat client for c.58 MW facility, Malaysia o Data Center, construction of a 160 MW data center in four phases, Netherlands o Data Center in Alcalá, Coravel project involving Dragados, Iridium, Turner & SourceBlue. Construction underway, Madrid, Spain Recent significant new orders 9 AI, Digital & Tech Alcalá Data Center, Madrid, Spain Notes: (1) Announced in July 2026.
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H1 2026 | Results Presentation o Narrogin Wind Farm, project to construct Neoen’s 179 MW Wind Farm to support the state’s energy transition and growing demand for reliable, lower-emissions power in Western Australia(1) o Rolls-Royce SMR program, strategic leadership in construction management for the global delivery team deploying small modular nuclear reactors (SMR), in the UK and EU, together with Amentum o Sellafield nuclear site works, €685m contract for up to 15 years involving design, engineering, and delivery of civil infrastructure works in support of nuclear operations and decommissioning in collaboration with Sellafield and its partners, UK Recent significant new orders 10 Energy Infrastructure Energy Infrastructure Western Downs Battery, Queensland, Australia Notes: (1) Announced in July 2026.
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H1 2026 | Results Presentation o Roberts Bank Terminal 2 Project, multi-billion-dollar expansion that will increase West Coast container capacity, Vancouver, Canada(1) o Anderson Dam Tunnel project, construction of a 1,700-foot outlet tunnel for Anderson Reservoir to strengthen dam safety, improve water management and increase emergency drawdown capacity in California, USA o Melbourne Airport providing more capacity for passengers and exporters, support competition, reduce delays and enable economic growth in Victoria and Australia o Prague Metro Line D, €1.23bn JV, construction of three new underground stations and several tunnel sections with a total length of almost six kilometers, Czech Republic o East Link Project, VPRA OL 31 –Vagnhärad, €900mn high-speed rail project involving 26km of track, a 4-km tunnel, and a new station, under collaborative model delivery, part of Sweden East Link program, Sweden Recent significant new orders 11 Transport & Sustainable Infrastructure Transport & Sustainable Infrastructure SR-400 Managed Lanes, Georgia, USA Notes: (1) Announced in July 2026.
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H1 2026 | Results Presentation o University of Kentucky, design and building of the university’s central utility plant, USA o Quantum Institute, hub for quantum research and education including specialized lab space and high-end facilities, Princeton, New Jersey, USA o Baptist Health Hospital, expansion of the region’s emergency, inpatient, and surgical care in Sunrise, Florida, USA o Max Rubner Institute, €230mn PPP project, design, construction and 30-year operation of one of Germany’s most advanced research facilities with special laboratories and maximum safety standards in Kiel, Germany o New Bundaberg Hospital, project with Queensland Government will serve the growing and ageing community in the area, adding more than 410 beds, operating rooms, emergency department and support services Recent significant new orders 12 Notes: (1) Biopharma, Health and Education. BHE(1) & Social Infrastructure BHE & Social Infrastructure Baptist Health Hospital, Florida, USA
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H1 2026 | Results Presentation Critical Minerals & Natural Resources o Yilgarn Iron, agreement to support the revival of iron ore production in the Koolyanobbing district, 400 kilometers east of Perth, Western Australia o Zinc Tailing recycling facility, AUD 400m, contracts by Hindustan Zinc to support the delivery of India’s first zinc tailings recycling facility at Rampura Agucha Mines (RAM), Rajasthan, India o Vu can’s Lionheart Lithium Project, Procurement and Construction Management as part of a strategic partnership between HOCHTIEF and Vulcan to deliver an end-to-end solution for the Lithium Extraction Plant and Central Lithium Plant, Germany o Eva Copper Mine Project, AUD 700m, alliance agreement to deliver multiple packages of mining services, Queensland- Australia o Lithium de France, front-end engineering design (FEED) work for a major lithium project in France Recent significant new orders 13 Critical Minerals & Natural Resources Lionheart Lithium Project, Upper Rhine Valley, Germany
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H1 2026 | Results Presentation o Modernization of Čás a Military Airport, €220mn complete repair of the runway and modernization of the airport lighting system, along with related infrastructure, Czech Republic o German Armed Forces' university campus, involvement as project partner in a €1bn collaborative ten-year contract, Hamburg, Germany o General Javier Varela Army Logistics Base (Phase I), construction of logistics and maintenance facilities for the Spanish Army's new state-of-the-art logistics hub in Córdoba, Spain o US Air Force Civil Engineering Services, 10-year global construction services award o Army Aviation Program of Works, Stage 2 Delivery Phase at RAAF Base Townsville includes construction & upgrade of command, training, maintenance, logistics and airfield infrastructure, Queensland, Australia Recent significant new orders 14 Defense Defense German Armed Forces' university campus, Hamburg, Germany
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Performance by segment H1 2026 | Results Presentation
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H1 2026 | Results Presentation Strong sales increase of 22.7% yoy FX-adj., driven mainly by data centers, with solid trends in sports, pharma and airports EBITDA margin increased 64 bps to 4.0%, driven by data center work and additional added value related to Turner’s end-to-end strategy including supply chain and modularization services Full-year Operational PBT Outlook increased to USD 1,400-1,460mn on the back of outstanding performance and improved prospects Continued strong cash conversion with operating cash flow of €416mn (+41mn yoy) pre-factoring Net cash of €3.7bn (+€919mn yoy) Positive new order momentum, up 38.7% FX-adj. to €21bn, driving record order backlog to €46.1bn, up 35% FX-adj. 16 Turner Euro Million H1 2025 H1 2026 yoy yoy FX-adj. Sales 12,216 14,130 15.7% 22.7% EBITDA 408 561 37.7% 46.1% % margin 3.3% 4.0% 64 bps Operational PBT 392 551 40.5% 49.1% % margin 3.2% 3.9% 69 bps Operational net profit 283 400 41.5% 50.1% Op. Attributable net profit 227 321 41.8% 50.4% New orders 16,034 20,958 30.7% 38.7% Order backlog 33,113 46,096 39.2% 35.0% (1) Notes: (1) Before HT minorities in ACS. Outlook Operational PBT 2026 (USD mn) 2025 2026E 1,400-1,460 +35-40% (prev. 25-30%) 1,042 Order backlog (as of June 2026) NOCF pre-factoring 347 360 +13 Net Operating Cash Flow 378 284 -94 (Net Debt) / Net Cash 2,747 3,666 +919 % 21% 10% % 10% 3% 3% 2% AI, Di ita & Tec B E Commercia ports Entertainment A iation Transportation ub ic ote esidentia t er €46.1bn
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H1 2026 | Results Presentation 17 CIMIC 12% 13% 5% 13% 6%6% 3% 2% AI, Di ita & Tec ustainab e obi it Ener Infrastructure B E Defense Transport Critica inera s & atura esources t er Euro Million H1 2025 PF H1 2026 yoy yoy FX-adj. Sales 4,954 5,150 4.0% (0.6%) EBITDA 606 626 3.2% (1.3%) % margin 12.2% 12.2% Operational PBT 217 236 8.5% 3.7% % margin 4.4% 4.6% 19 bps Operational net profit 113 116 2.4% (2.0%) Op. Attributable net profit 91 93 2.6% (1.8%) New orders 6,563 6,413 (2.3%) (6.5%) Order backlog 21,273 23,747 11.6% 2.9% (3) (2) (1) Sales of €5.2bn, with increasing contributions from strategic growth markets, particularly data centers, with large transport infra projects winding down Operational PBT of €236mn, up 8.5% yoy and supported by 19bps of margin increase due to the portfolio rebalancing. Operational Attributable Net Profit up 2.6% on a comparable basis NOCF shows €172mn improvement yoy with H1 figure reflecting normal seasonality. Net debt reduced to €945mn with €1.2bn improvement includes equity injection for Thiess minority buyout and divestment of UGL stake New orders of €6.4bn with book-to-bill ratio 1.1x in H1 2026 and LTM. Solid order backlog of €23.7bn, up 12% yoy after adjusting for the divestment of the UGL transport stake Notes: (1) Operational KPIs exclude the one-off impact of restructuring costs. (2) Before HT minorities in ACS. (3) H1 2025 results have been adjusted for UGL Transport to ensure comparability with H1 2026. Outlook Operational PBT 2026 (AUD mn) 2025 2026E 780-830 +4-10% 752 €23.7bn Order backlog (as of June 2026) NOCF pre-factoring (389) (307) +82 Net Operating Cash Flow (451) (278) +172 (Net Debt) / Net Cash (2,151) (945) +1,206
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H1 2026 | Results Presentation 18 Engineering & Construction Euro Million H1 2025 H1 2026 yoy yoy FX-adj. Sales 5,219 5,447 4.4% 8.1% EBITDA 295 354 19.9% 24.4% % margin 5.7% 6.5% 84 bps Operational PBT 136 162 18.6% 21.3% % margin 2.6% 3.0% 36 bps Operational net profit 98 139 42.0% 45.0% Op. Attributable net profit 93 129 37.9% 40.8% New orders 7,864 7,956 1.2% 4.0% Order backlog 30,040 32,841 9.3% 7.7% (2) (1) % 16% 15% % 5% 3% 3%1% 6% erman pain Canada o and C ec epub ic et er ands t ers 2% 1 % % 3% 2% 8% 8% 16% AI, Di ita & Tec ustainab e obi it Transport Ener Infrastructure B E Defense enera Bui din t er Notes: (1) Operational KPIs exclude the one-off impact of restructuring costs. (2) Before HT minorities in ACS. €32.8bn €32.8bn Order backlog (as of June 2026) Sales increased by 8.1% yoy FX-adj., supported by new sustainable mobility, digital infra and defense EBITDA margin improved 84 bps to 6.5%, supported by a significant uplift in FlatironDragados and HOCHTIEF E&C perationa BT of €162mn, up 21.3% FX-adj Strong growth in Operational Net Profit of 45% FX-adj. Net cash position increased 290mn yoy to €1.6bn Bac o reac es €32.8bn, supported by a robust order intake of €8bn and a book to bill ratio LTM of 1.2x NOCF pre-factoring (76) (231) -155 Net Operating Cash Flow (228) (239) -12 (Net Debt) / Net Cash 1,291 1,581 +290
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H1 2026 | Results Presentation Euro Million H1 2025 H1 2026 yoy PBT 97 100 3.3% Abertis 90 86 (3.8%) Iridium 14 20 43.9% ACS Digital & Energy (7) (6) 7.8% Operational net profit 98 99 1.0% Abertis 90 86 (3.8%) Iridium 13 19 44.5% ACS Digital & Energy (5) (7) (30.2%) Attributable net profit op. 91 92 1.4% Abertis 83 79 (3.7%) Iridium 13 19 44.5% ACS Digital & Energy (5) (7) (30.2%) (1) 19 Infrastructure Notes: (1) Before HT minorities in ACS. Abertis’ EBITDA increased 6.3%, supported by traffic and inflation-linked tariff increases. The year-on-year comparison of the contribution to ACS was affected by a nonrecurring positive financial result in H1 2025 Dividend of approx. €600mn (ACS share €297mn) paid by Abertis in April 2026 Iridium’s rofit Before Tax ( BT reached €20mn ACS Digital & Energy shows the impact of the equity accounting of the Data Center JV and the increased investments
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H1 2026 | Results Presentation Available cash Committed and undrawn credit llines Abertis Holding (*) Subsidiaries 1.0 1.7 2.1 2.3 0.4 1.8 2.0 2.1 2026 2027 2028 2029 1.4 3.5 4.0 4.4 3.4 4.3 Liquidity 7.7 Robust operating performance ▪ Revenues +5% and EBITDA +6% (LfL +4/+5%), underpinned by traffic growth and inflation-linked tariff increases ▪ The strength and resilience of HV traffic (+2.3%) underpinned overall traffic growth of +0.6% driven by Spain (+2.9%), USA & Puerto Rico (+2.3%) and Brazil (+1.9%) ▪ +3.4%(2) average tariff increase for 2026, resulting from regulated tariff mechanisms providing inflation protection Continued investment in portfolio & extension of current concessions ▪ Acquired the remaining 48.8% stake in Atlandes (A-63), a 104 km strategic corridor in south-west France (expiry 2051) ▪ Awarded 19.5-year extension of FARAC, 799km key industrial corridor connecting Mexico City-Guadalajara, boosting group EBITDA backlog by +78%(3) and average portfolio life by 23% to 15 years(3) Financial strength and liquidity ▪ Net debt of €24.0bn(1) as of June 2026 ▪ Ratings recently reaffirmed by all 3 agencies (BBB– stable outlook from S&P, Baa3 stable outlook from Moody’s & BBB stable outlook from Fitch) ▪ Successful access to capital markets, with €1.9bn bonds issued by the group at attractive terms to partially refinance 2027/28 maturities ▪ Ample group liquidity of €7.7bn comprising €3.4bn of available cash and €4.3bn of undrawn bank facilities, that covers debt maturities up to 2028 Euro Million H1 2025 H1 2026 yoy Sales (100%) 2,983 3,124 4.7% EBITDA (100%) 2,117 2,251 6.3% % margin 71.0 % 72.1 % 108 bps Net profit pre-PPA (100%) 383 369 (3.5%) Net profit (100%) 179 173 (3.8%) Contribution to PBT 90 86 (3.8%) Contrib. to attr. net profit 83 79 (3.7%) Capex 269 643 (Net Debt) / Net Cash (23,753) (23,959) (1) 20 Infrastructure - Abertis (*) Abertis Holding: Abertis Infrastructure + Abertis HoldCo + Abertis Finance BV. / (1) Accounting net debt excluding Abe HoldCo. / (2) Excluding Argentina. / (3) Backlog is calculated as of December 2025 as nominal sum of forecasted EBITDA until end of concesion life at FX December 2025; (4) Calculated as of December 2025 weighted by EBITDA. More information in https://www.abertis.com/informacion-financiera/ Group's liquidity profile and debt maturities (€bn)
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H1 2026 | Results Presentation 21 Infrastructure - Abertis Note: Figures reported according to Abertis management accounts as of 30 June of 2026, considering accounting perimeter, thus excluding Abertis HoldCo. Average FX rate on 30 June of 2026: €/BRL 6.01 €/CLP: 1,041.6; €/ARS 1,687.3; €/USD 1.17 €/MXN 20.38; €/INR 108.6. (1) % change H1 2026 vs H1 2025. For comparable purposes, revenues and EBITDA variation calculated excluding 2026 contributions of Atlandes (France) and Santiago - Los Vilos (Chile) until full consolidation, and Fernão Dias (Brazil) and Rutas del Pacifico (Chile), following deconsolidation in 2026 and 2025, respectively. / (2) For comparable purposes ADT variation calculated excluding Coviqsa and Fernão Dias for any period. / (3) India and Emovis. / (4) Excludes Abertis HoldCo with €1,000m of third parties' debt. / (5) Executed capex excluding M&A. € n France Spain Italy USA Mexico Chile Brazil Arg. Int. A.Infra. Total Group Km 1,873 631 236 293 844 494 2,622 175 152 - 7,320 Concessions 3 7 1 4 3 4 6 2 2 - 32 Traffic -2.2% +2.9% +0.1% +2.3% +2.3% -1.0% +0.9% +1.9% +1.2% +7.3% n.a. +0.6% Revenues 1,099 329 232 278 406 290 346 83 61 0 3,124 % Change +6.5% +5.2% +2.8% -2.6% +14.2% -9.3% +5.3% +9.7% +29.2% n.a. +4.7% EBITDA 799 259 135 210 344 238 240 11 22 -7 2,251 % Change +8.5% +6.1% +5.4% -0.5% +15.6% -11.1% +16.0% -13.8% +20.4% n.a. +6.3% % Contribution 35.5% 11.5% 6.0% 9.3% 15.3% 10.6% 10.7% 0.5% 1.0% (0.3%) 100% Capex 48 3 97 34 273 64 112 10 2 0 643 Net Debt 4,862 334 -174 3,058 2,056 680 2,060 -9 -27 11,119 23,959 Cash 436 52 174 305 476 194 490 9 27 1,263 3,426 EUROPE OVERSEAS HOLDING TOTAL (2) (1) (5) (3) (4) (+5% LfL) (1) (+4% LfL)
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H1 2026 | Results Presentation 22 Development of fully-owned 1.2 GW giga-campus in Waterford, Ohio ACS D&E has launched its first 1 GW+ data center development in the US ✓ Invested c. $400mn to date (€300mn as of June 2026) ✓ Acquisition follows months of development work: ▪ In August 2025 we secured an exclusivity option to acquire the asset at a pre-agreed price ▪ Engagement with utility (AEP) to secure grid capacity ▪ Energy supply agreement signed in December 2025 ▪ Land option executed in April 2026 ▪ Permitting advanced ✓ Commercialization currently underway and attracting significant market interest, aiming 2027 ✓ Engineering and design works ongoing to achieve target delivery of initial phase in 2029 ✓ Tier I-adjacent market, 70 miles from Columbus and New Albany, suitable for large-scale campus development and for leading hyperscale tenants ✓ Meta, Google, AWS and Microsoft as leading hyperscalers with capacity already commissioned and projects under- construction in these markets Operational Planned Under Construction
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H1 2026 | Results Presentation 23 Dallas Fort Worth commercialization milestone First lease signed with an investment-grade hyperscaler at the Dallas Fort Worth campus in Texas Dallas Fort Worth, Texas, United States ✓ First hyperscale lease signed at Dallas Fort Worth: ▪ c.140 MW IT across three purpose-built buildings ▪ Active discussions underway with tenant to incorporate further c.100 MW IT across two additional buildings ▪ Leading investment-grade hyperscale tenant, underscoring Coravel's ability to attract top-tier hyperscale demand ▪ Lease duration in the high-end of industry's standard range, with several pre-agreed extensions ▪ Vertical construction to begin in Q3 2026, with staggered delivery into service (COD) throughout 2028 ▪ Power access secured, utility contracts executed ▪ Full suite of O&M services and full pass-through of the tenant’s ener consumption ✓ The agreement secures long-term, high-quality cash flows and validates EBITDA/MW IT targets, which underpin valuation expectations shared with the market ✓ It also confirms the demand for large, and well-located data centers ▪ Coravel, the global operating brand of the JV with GIP established to develop and operate next-generation data centers worldwide ▪ Multiple assets under advanced negotiations with leading global hyperscalers
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Conclusions H1 2026 | Results Presentation
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H1 2026 | Results Presentation 25 Conclusions Operational Net Profit €510mn Backlog €105.9bn €2.3bn Strong market momentum LTM NOCF Solid operating performance €1,618mn EBITDA Up €683mn yoy+14.2% FX-adj. yoy +30.1% yoy New orders €36.6bn +19.1% FX-adj. yoy 1.3x LTM book to bill +21% yoy(1) >2 years of backlog visibility Notes: (1) On comparable basis, adjusting for UGL Transport contribution to CIMIC in H1 2025. Consistent delivery of strategic objectives Data Centers backlog €21.9bn +c.88% yoy New orders €13.3bn Waterford project: Key investment in the development of ACS’ DC pipeline Increased 2026 Operational Net Profit guidance of c.€1,110 – €1,155mn (+ 3 0 - 3 5%) 140 MW IT Dallas Fort Worth commercialization Lease duration at the high end of industry standards, plus extensions Turner’s performance +49% Op. PBT FX-adj yoy 4.0% H1 EBITDA margin €300mn invested to date
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Appendix H1 2026 | Results Presentation
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H1 2026 | Results Presentation 27 Infrastructure – Equity invested in greenfield projects as of June 30 Note: (1) Excludes associated transaction costs and WC funding. (2) Managed Lanes: no equity deployed to date. (2) Includes electric vehicle charging network. (3) ACS stake. Social infrastructure Railroads Highways Sustainable mobility €11 mn €118mn €222mn €1 mn Invested Capital € 2mn €93mn €136mn Invested Capital Total by company €601mn(2)€910mn € 10mn Invested Capital TOTAL GROUP Tota capita in estment of €1.9bn Data Centers €888mn(1) € 1mn Energy €68mn (3) (4) (4) €22mn
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H1 2026 | Results Presentation ▪ Strategic 799km industrial corridor connecting Mexico City – Guadalajara. Key Mexico–U.S. trade route benefiting from nearshoring-driven growth and U.S. economy traffic correlation ▪ A AC is C ’s main concession, a c.53%-owned leading toll road network that generated €607mn EBITDA in 2025 and an 11% EBITDA CAGR over the last 10 years ▪ Agreement with Mexican Federal Government includes: − 19.5-year extension to October 2067, doubling the remaining life to >41 years − €1.2bn capex p an o er ears in exchange for heavy-vehicle tariff increases phased in over the same period, and maintained through the concession term − Investment fully self-funded with RCO cash flows and local currency debt (no FX exposure), reaffirming Abertis’ financial discipline ▪ Reinforces perpetual operator model, extending Abertis portfolio life 12 to 15yrs (3) and boosting C ’s EBITDA bac o b 8%(2) through stable, recurring long-term cash flows 28 Infrastructure - Abertis Key figures Extending the end of FARAC, RCO’s main concession, from 2048 to 2067 (19.5-year extension) Local Investors 53.12% 29.04% 17.84% Shareholder structure of RCO €66 mn (1) Revenues €553mn (1) EBITDA (84% margin) Increase in Abertis Portfolio Life +3yrs (3) 19.5 years Extension Tariff linked to 100% CPI + real increases linked to works Notes: (1) 2025 FX average rate: 21.67 MXN/EUR; (2) Backlog is calculated as of December 2025 as nominal sum of forecasted EBITDA until end of concession life at FX December 2025.; (3) Calculated as of December 2025, weighted by EBITDA. 78% (2) Increase in RCO EBITDA Backlog
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H1 2026 | Results Presentation 29 Legal Disclaimer This document contains forward-looking statements on the intentions, expectations or forecasts of Grupo ACS or its management at the time the document was drawn up and in reference to various matters including, among others, its customer base, its performance, the foreseeable growth of its Activities and its overall turnover, its market share, the results of Grupo ACS and other matters relating to the Group’s activities and current position. These forward-looking statements or forecasts can in some cases be identified by terms such as “expectation”, “anticipation”, “proposal”, “belief” or similar, or their corresponding negatives, or by the very nature of predictions regarding strategies, plans or intentions. Such forward-looking statements or forecasts in no way constitute, by their very nature, guarantees of future performance but are conditional on the risks, uncertainties and other pertinent factors that may result in the eventual consequences differing materially from those contained in said intentions, expectations or forecasts. ACS, Actividades de Construcción y Servicios, S.A. does not undertake to publicly report on the outcome of any revision it makes of these statements to adapt them to circumstances or facts occurring subsequent to this presentation including, among others, changes in the business of the company, in its strategy for developing this business or any other possible unforeseen occurrence. The points contained in this disclaimer must be taken fully into account by all persons or entities obliged to take decisions or to draw up or to publish opinions on securities issued by Grupo ACS and, in particular, by the analysts and investors reading this document. All the aforesaid persons are invited to consult the public documentation and information that Grupo ACS reports to or files with the bodies responsible for supervising the main securities markets and, in particular, with the National Securities Market Commission (CNMV in its Spanish initials). This document contains financial information drawn up in accordance with International Financial Reporting Standards (IFRS). The information has not been audited, with the consequence that it is not definitive information and is thus subject to possible changes in the future. H1 2026 | Results Presentation