Interim report
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h t Disclaimer: This document contains certain “forward-looking statements”, which are based on management’s expectations, as well as on a number of assumptions concerning future events resulting from currently available information. Readers are cautioned not to put undue reliance on such forward-looking statements, which are not a guarantee of performance and are subject to a number of uncertainties and other factors, many of which are out of Entel’s control and could cause actual results to materially differ from such statements. - - 2Q & First Half 2026 Results Conference Call August 4th, 2026 11:00 am Chile - 9:00 am New York Please register here or at informacioncorporativa.entel.cl/investors Ignacio Reyes Investor Relations Sr. Analyst ireyesc@entel.cl Contact Information Entel Investor Relations ir @entel.cl 2Q & First Half 2026 RESULTS Empresa Nacional de Telecomunicaciones S.A Paula Raventós Investor Relations Officer praventos@entel.cl
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1 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 Table of contents I. Second Quarter and First Half 2026 Results ................................................................................. 2 Second Quarter and First Half 2026 Highlights ................................ ................................ .................. 2 ESG: Environmental, Social and Governance Highlights ................................ ................................ .... 3 II. Consolidated Financial Results ................................................................................................. 4 Consolidated Costs of Operations ................................ ................................ ................................ .... 7 Consolidated Balance Sheet and Financial Indicators ................................ ................................ ....... 8 III. Chile: Financial Results and Operating Figures ........................................................................ 9 Business Development by Segments ................................ ................................ ............................... 13 i. Consumer Segment (B2C) – Chile ................................ ................................ .............................. 13 ii. Corporate and SME Segment (B2B) – Chile ................................ ................................ ................... 16 IV. Peru: Financial Results and Operating Figures3 ...................................................................... 20 V. Segment Revenue and EBITDA Financial Information4 .......................................................... 23 VI. EBITDA Breakdown by Services .............................................................................................. 24 VII. Glossary of terms .................................................................................................................... 25
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2 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 I. Second Quarter and First Half 2026 Results Santiago, Chile – August 3rd, 2026 – Empresa Nacional de Telecomunicaciones S.A. (Santiago Stock Exchange: ENTEL) “the Company” or “Entel”, today announced unaudited results for the second quarter (2Q26), ended June 30, 2026. All figures are expressed in Chilean Pesos and are reported according to International Financial Reporting Standards (IFRS) and local regulations issued by the Comisión para el Mercado Financiero (CMF). The average exchange rate in 2Q26 was Ch$ 892.77/US$ 1 (-6.6% YoY) and Ch$ 262.1/PEN$ 1 (+0.9% YoY). Average inflation in Chile (UF annual variation) from 2Q25 to 2Q26 was 3.96%. Second Quarter and First Half 2026 Highlights • Mobile customer base reached 20,253,164 customers at the end of 2Q26, with +853.1k net additions in postpaid voice (+7.7% YoY and 1 .7% QoQ) across the combined operation in Chile and Peru. • Fiber expansion in Chile: RGUs reached 515,049 fiber internet connections in Chile, increasing 25.7% YoY and 6.5% QoQ. Total fixed RGUs in Chile (fiber -based) reached 687,914 (+24.2% YoY). • Consolidated revenues reached Ch$ 780.5 billion, up 8.0% YoY, with growth broad-based across both operations. Chile mobile and fixed revenue rose 6.4%, driven by a 10.2% increase in mobile revenue — mobile service revenue up 10.2% and equipment sales up 10.4% — together with a 1.2% improvement in fixed and ICT revenue. Peru contributed with an 8. 9% increase, reflecting 7.0% growth in mobile service revenue, 13.1% higher equipment sales and a 5.2% rise in fixed and ICT revenue. • Consolidated EBITDA reached Ch$ 219.6 billion, up 8.4% YoY, with an EBITDA margin of 28.1%, up 0.1 p.p. YoY, as EBITDA grew ahead of revenue. In the first six months of 2026 EBITDA reached Ch$ 433.1 billion, up 9.3%, with a margin of 27.8%, up 0.5 p.p. • EBITDAaL reached Ch$ 173.0 billion, up 8.9% YoY, with an EBITDAaL margin of 22.2%, up 0.2 p.p. YoY. • EBIT reached Ch$ 68.7 billion, up 18.9% YoY, growing more than twice as fast as EBITDA because depreciation and amortization advanced only 4.2%. • Net income reached Ch$ 25.9 billion, up 39.4% YoY, on operating growth and a lower financial expense following the 2025 refinancing. • During the first half of the year, capital expenditures totaled Ch$ 217.3 billion, down 2.9% YoY, equivalent to 14.0% of revenues. • Net financial debt to EBITDA stood at 1.67x (2.42x including IFRS 16), against 1.79x (2.64x) in 2Q25, with gross financial debt down Ch$ 365.1 billion over the year.
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3 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 ESG: Environmental, Social and Governance Highlights ▪ Entel Outperforms Global Industry Average and Joins S&P Best-in-Class Chile and MILA Entel remained in the Dow Jones Best-in-Class Chile and MILA sustainability indices for the sixth consecutive year, becoming the only Chilean telecommunications company included in both. The company scored 82 points in the Corporate Sustainability Assessment, well above the global industry average of 38, and achieved 90 points in the Social dimension. (May 2026) ▪ Entel Leads Its Industry in Brinca-UAI Corporate Sustainability Ranking 2026 Entel ranked first in its industry in the 2026 Brinca-UAI Corporate Sustainability Ranking, based on an assessment of 64 environmental, social and corporate governance indicators. This marks the company's second recognition in the ranking and highlights the impact of its "Conciencia en Todas" commitment through initiatives focused on digital inclusion, emergency connectivity and the circular economy. (July 2026) ▪ Entel Peru Becomes First Latin American Telco to Validate Network Energy Efficiency with TM Forum Entel Peru became the first telecommunications operator in Latin America to obtain TM Forum certification for network energy efficiency. The recognition validates the use of AI-powered automation to optimize energy consumption across its mobile network, delivering savings of 7,712.6 kWh and more than PEN 5 million in operating costs during 2025 while maintaining service quality. (May 2026) ▪ Entel Recognized for Best Mobile Network Performance in Chile Entel was recognized by nPerf as having the best mobile network performance in Chile in 2026, sharing the top position overall while leading the market in download speed with 69.0 Mbps and achieving the highest overall score of 71,488 points. The results reinforce Entel's leadership in mobile connectivity and network quality. (2026) ▪ Entel Ranks First in Internet and Telephony in B-Brands 2026 Entel ranked first in the Internet and Telephony category of the B-Brands 2026 Study, which assessed 226 brands across seven industries in Chile. The company was also the only brand in its category included in the spontaneous Top of Mind for positive impact, outperforming peers in emotional and transcendental attributes and reinforcing its positioning as a brand that contributes to society beyond connectivity. (June 2026)
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4 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 II. Consolidated Financial Results1 1 All figures in Ch$ millions, except EPS figures Ch$ million 2Q26 2Q25 % Change Abs. Change 6M26 6M25 % Change Abs. Change Total Revenue 780,531 723,018 8.0% 57,514 1,556,111 1,447,633 7.5% 108,478 Chile Mobile & Fixed Revenue 477,551 448,968 6.4% 28,582 958,358 900,706 6.4% 57,652 Mobile Revenue 342,578 310,734 10.2% 31,844 693,446 629,576 10.1% 63,870 Mobile Service Revenue 240,296 218,049 10.2% 22,247 478,120 445,394 7.3% 32,726 Mobile Equipment Revenue 102,282 92,685 10.4% 9,597 215,325 184,182 16.9% 31,143 Fixed & ICT Revenue 120,850 119,465 1.2% 1,384 236,092 234,918 0.5% 1,174 Wholesales Revenue & others 14,123 18,769 (24.8%) (4,646) 28,820 36,212 (20.4%) (7,392) Peru Mobile & Fixed Revenue 274,016 251,564 8.9% 22,453 542,890 502,198 8.1% 40,691 Mobile Revenue Pe. 262,889 241,209 9.0% 21,681 521,088 480,986 8.3% 40,103 Mobile Service Revenue Pe. 174,317 162,879 7.0% 11,439 345,894 326,843 5.8% 19,051 Mobile Equipment Revenue Pe. 88,572 78,330 13.1% 10,242 175,194 154,143 13.7% 21,051 Fixed & ICT Revenue Pe. 9,318 8,462 10.1% 856 18,171 17,399 4.4% 772 Wholesales Revenue & others Pe. 1,808 1,893 (4.4%) (84) 3,630 3,813 (4.8%) (183) Call Center Services 5,730 5,105 12.2% 625 10,783 9,816 9.9% 967 Others Revenues - Non core 23,234 17,381 33.7% 5,854 44,080 34,912 26.3% 9,168 Other revenues 23,625 17,012 38.9% 6,613 44,492 34,237 30.0% 10,255 Proceeds/Loses Asset Sales (390) 368 (206.0%) (759) (412) 675 (161.0%) (1,087) Operating Costs 711,872 665,258 7.0% 46,614 1,423,743 1,339,149 6.3% 84,593 EBITDA 219,648 202,649 8.4% 17,000 433,123 396,214 9.3% 36,909 EBITDA Margin 28.1% 28.0% 0.1% 27.8% 27.4% 0.5% EBITDAaL 172,951 158,796 8.9% 14,154 339,901 309,502 9.8% 30,399 EBITDAaL Margin 22.2% 22.0% 0.2% 21.8% 21.4% 0.5% Depreciation and Amortization 150,989 144,889 4.2% 6,100 300,754 287,731 4.5% 13,024 Operating Income (EBIT) 68,660 57,760 18.9% 10,900 132,369 108,483 22.0% 23,885 Non-operating income (43,329) (44,785) (3.3%) 1,457 (68,757) (101,553) (32.3%) 32,796 Financial Income 2,425 2,461 (1.5%) (36) 5,753 7,564 (23.9%) (1,811) Financial Expenses (26,975) (40,696) (33.7%) 13,721 (52,901) (93,066) (43.2%) 40,165 Foreign Exchange Difference and Indexation Unit Results (18,778) (6,551) 186.7% (12,228) (21,609) (16,051) 34.6% (5,558) Income before taxes (EBT) 25,331 12,974 95.2% 12,356 63,611 6,930 817.9% 56,681 Income Taxes 564 5,596 (89.9%) (5,032) (9,954) 34,641 (128.7%) (44,595) Net Income (Loss) 25,895 18,570 39.4% 7,324 53,657 41,571 29.1% 12,086 EPS 86 61 39.4% 24 178 138 29.1% 40 CAPEX 125,742 106,406 18.2% 19,336 217,285 223,883 (2.9%) (6,599) Capex/Revenue 16.1% 14.7% 1.4 14.0% 15.5% (1.5)
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5 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 2Q26 vs 2Q25: • Mobile customer base reached 20,253,164 subscribers, essentially stable versus the prior quarter (+2,796) and 0.5% lower YoY (-98,117), as strong postpaid growth was more than absorbed by the contraction of the prepaid base. o Postpaid reached 14,448,185 subscribers, with 1,166,369 net additions YoY (+8.8%) and 302,053 in the quarter (+2.1%). Chile contributed 396,408 net additions over the year (+4.9%) and 76,226 in the quarter (+0.9%), while Peru added 769,961 (+14.8%) and 225,827 (+3.9%) respectively. o Prepaid reached 5,804,979 subscribers, after 1,264,486 disconnections YoY (-17.9%) and 299,257 in the quarter (-4.9%). The prepaid run-off exceeded the postpaid gain by roughly 98 thousand subscribers over the year, which is precisely what leaves the total base marginally below 2Q25 despite the postpaid momentum. Of the annual disconnections, 343,055 were in Chile (-16.2%) and 921,431 in Peru (-18.6%); in the quarter, 149,213 in Chile (-7.7%) and 150,044 in Peru (-3.6%). • Fixed connections total fixed RGUs reached 759,710, up 5.2% QoQ (+37,741) and 11.1% YoY (+75,772), as fiber expansion more than offset the run-off of the fixed wireless base, which includes the exit of the wireless/satellite television base in Chile following the divestment of that business. o Fiber reached 704,662 connections (internet, TV and Voice), with 133,683 net additions YoY (+23.4%) and 43,084 in the quarter (+6.5%). The expansion was supported by fiber internet with a third consecutive quarter of lower monthly churn in Chile. Chile accounts for 687,914 of that base (+24.2% YoY) and Peru for 16,748 (-1.8% YoY), where fiber commercial rollout is expected to begin during the last quarter of 2026, following the signing of the agreement with Wi-Net in December 2025. o Fixed wireless fell to 55,048 connections, down 51.3% YoY (-57,911) and 8.8% in the quarter (- 5,343). The annual decline absorbed the equivalent of 43% of fiber's net additions, which is why total fixed RGUs grew 11.1% while fiber grew 23.4%. • Consolidated revenues reached Ch$ 780.5 billion, increasing 8.0% YoY, with both countries contributing to the growth. o Revenue in Chile mobile and fixed revenue reached Ch$ 477.6 billion, up 6.4% YoY, propelled by mobile revenue (+10.2%) and fixed and ICT revenue (+1.2%), partly offset by the decline in wholesale (-24.8%). o Revenue in Peru mobile and fixed revenue reached Ch$ 274.0 billion, up 8.9% YoY, led by mobile revenue (+9.0%), where handset revenue grew +13.1% and service revenue +7.0%. • EBITDA reached Ch$ 219.6 billion, up 8.4% YoY, with an EBITDA margin of 28.1%, up 0.1 p.p. from 28.0% in 2Q25. Ch$ million 2Q26 2Q25 % Change Abs. Change 6M26 6M25 % Change Abs. Change Net Financing Cost and Others (43,329) (44,785) (3.3%) 1,457 (68,757) (101,553) (32.3%) 32,796 Net Financial Expenses (24,550) (38,235) (35.8%) 13,685 (47,148) (85,502) (44.9%) 38,354 Price Level adjustment, F/X & Market to Market Accruals (18,778) (6,551) 186.7% (12,228) (21,609) (16,051) 34.6% (5,558)
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6 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 o EBIT reached Ch$ 68.7 billion, up 18.9% YoY. o EBITDAaL reached Ch$ 173.0 billion, up 8.9% YoY, with an EBITDAaL margin of 22.2%, up 0.2 p.p. from 22.0% in 2Q25. • Non-operating income reached a net cost of Ch$ 43.3 billion, 3.3% below the net cost of Ch$ 44.8 billion in 2Q25. The comparison was driven by the absence in 2Q26 of currency hedging instruments previously used to neutralize the impact of the Ch$/US$ exchange rate on the tax line related to investments abroad; these hedges were no longer needed after the capital increase carried out in 4Q25 in the subsidiary Entel Internacional through the contribution of 100% of the shares of Entel Perú. • Income taxes contributed a positive Ch$ 0.6 billion to the result, against Ch$ 5.6 billion in 2Q25 (- 89.9%). The smaller contribution is a base effect: the year-ago period carried a materially larger tax gain linked to the CLP/USD exposure on the investment abroad. • Net income reached Ch$ 25.9 billion, up 39.4% YoY, supported by operating growth and the lower financial expense following the 2025 refinancing. 6M 2026 vs 6M 2025: Revenues in the first six months of 2026 reached Ch$ 1,556.1 billion, increasing 7.5% YoY explained mainly by mobile revenue (+10.1%) and fixed and ICT revenue (+0.5%) in Chile, whose combined mobile and fixed revenue advanced 6.4%, and by Peru (+8.1%), . Within the Chilean mobile line, handset revenue (+16.9%) grew more than twice as service revenue (+7.3%), while wholesale revenue fell 20.4% on the same non-recurring effects described for the quarter. EBITDA in the first six months of 2026 reached Ch$ 433.1 billion, increasing 9.3% YoY, explained by mobile gross margin growth in both countries, partly offset by the fixed business in Chile. EBITDA margin reached 27.8%, 0.5 p.p. up on the 27.4% of 6M25, as EBITDA again grew ahead of revenue (+7.5%). The operating result was Ch$ 132.4 billion, up 22.0% YoY. Net Income in the first six months of 2026 reached Ch$ 53.7 billion, increasing 29.1% YoY, on a pre-tax result that rose from Ch$ 6.9 billion to Ch$ 63.6 billion. The improvement came from operating growth (EBIT +22.0%) and from a materially lower financial cost following the 2025 refinancing, with the non- operating result improving 32.3%. Consolidated CAPEX reached Ch$ 217.3 billion, down 2.9% YoY, equivalent to 14.0% of revenues versus 15.5% in 1H25 (-1.5 p.p.) Investment was focused mainly on mobile networks (5G and 4G in Chile and Peru) and on fiber connections in Chile.
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7 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 Consolidated Costs of Operations 2Q26 vs 2Q25 Consolidated costs of operations reached Ch$ 711.9 billion, up 7.0% YoY, growing 1.0 percentage points below revenue. The main movements at the line-item level are detailed below. • Costs of Equipment / Handset totaled Ch$ 165.0 billion, increasing 11.7% YoY , tracking the growth in mobile equipment revenue in Chile and Peru. • Rents & Maintenance totaled Ch$ 85.1 billion, up 13.0% YoY, explained by higher rental costs associated with the fiber leasing needed to support the growth of fiber connections in Chile. • Advertising, Sales Commissions and Expenses amounted to Ch$ 60.8 billion, increasing 9.7% YoY, driven by higher customer acquisition costs. • Salaries and Expenses reached Ch$ 86.1 billion, up 5.4% YoY, mainly due to CPI readjustments. Ch$ million 2Q26 2Q25 % Change Abs. Change 6M26 6M25 % Change Abs. Change Cost of Operations 711,872 665,258 7.0% 46,614 1,423,743 1,339,149 6.3% 84,593 Access Charges & Payments 16,575 16,422 0.9% 153 33,742 36,853 (8.4%) (3,111) Salaries and Expenses 86,132 81,707 5.4% 4,425 176,866 170,274 3.9% 6,592 Outsourced, supplies and Equipment Services 23,738 22,013 7.8% 1,724 45,370 45,642 (0.6%) (273) Bad debt provisions 19,044 18,552 2.6% 492 36,788 37,901 (2.9%) (1,113) Advertising, Sales commissions and expenses 60,753 55,380 9.7% 5,373 119,517 107,449 11.2% 12,068 Costs of equipment/Handset 164,975 147,760 11.7% 17,215 334,723 294,665 13.6% 40,058 Depreciation, amortization and impairment 150,989 144,889 4.2% 6,100 300,754 287,731 4.5% 13,024 Rents & Maintenance 85,137 75,324 13.0% 9,813 170,537 151,691 12.4% 18,846 Others service operators 17,177 17,347 (1.0%) (170) 33,576 33,635 (0.2%) (59) Professionals services & Consultancy 23,487 23,468 0.1% 19 44,712 47,106 (5.1%) (2,395) Energy & others 24,135 22,439 7.6% 1,695 47,954 45,924 4.4% 2,030 Others 39,731 39,957 (0.6%) (225) 79,203 80,277 (1.3%) (1,074)
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8 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 Consolidated Balance Sheet and Financial Indicators Covenants 2Q25 3Q25 4Q25 1Q26 2Q26 EBITDA/Net Financial expenses ( > 2,5) 7.57 8.86 6.62 8.39 9.85 Net Financial Debt (NFD)/EBITDA ( < 4,0) 1.79 1.66 1.64 1.56 1.67 Other indicators Current Assets/Current Liabilities 1.01 1.25 1.16 1.23 1.23 (NFD+IFRS16 liabilities)/EBITDA 2.64 2.51 2.47 2.35 2.42 Total Liabilities/ (Equity + Min interest) 2.13 1.85 1.94 1.86 1.85 DFN/(Equity + min interest) 0.77 0.69 0.70 0.68 0.73 Gross Debt (CLP $ Billion) 1,971 1,638 1,579 1,598 1,606 Net Financial Debt (CLP $ Billion) 1,423 1,358 1,369 1,336 1,454 * LTM Organic EBITDA.
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9 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 • Gross financial Debt as of June 30th, 2026 stood at Ch$ 1,605.5 billion, down Ch$ 365.1 billion from the Ch$ 1,970.6 billion of 2Q25 and broadly stable against the Ch$ 1,597.9 billion at the close of 1Q26. The annual reduction reflects amortizations, the early-year settlement of a large tax forward position and a US dollar-denominated debt paydown in Peru. • Net financial debt reached Ch$ 1,453.7 billion, above both the Ch$ 1,422.9 billion of 2Q25 and the Ch$ 1,335.7 billion of 1Q26. Net debt rose while gross debt fell over the year, which reflects a smaller liquidity position: cash and equivalents closed at Ch$ 137.7 billion, 41.1% below December 2025, on the settlement of forward positions early in the year, the first-quarter dividend payment and a working capital build concentrated in handset inventory. • Leverage the Net Financial Debt / EBITDA ratio stood at 1.67x, improving from 1.79x in 2Q25, and Net Financial Debt plus IFRS 16 / EBITDA at 2.42x (2.64x in 2Q25). III. Chile: Financial Results and Operating Figures Ch$ million 2Q26 2Q25 % Change Abs. Change 6M26 6M25 % Change Total Revenue 498,561 465,398 7.1% 33,163 998,340 932,834 7.0% Chile Mobile & Fixed Revenue 463,520 430,379 7.7% 33,141 929,712 864,852 7.5% Mobile Revenues 342,586 310,752 10.2% 31,833 693,463 629,614 10.1% Mobile Service Revenue 240,302 218,065 10.2% 22,237 478,133 445,426 7.3% Mobile Equipment Revenue 102,284 92,687 10.4% 9,597 215,330 184,188 16.9% Fixed & ICT Revenue 120,934 119,626 1.1% 1,308 236,249 235,238 0.4% Wholesales Revenue & others 14,469 19,181 (24.6%) (4,712) 29,593 37,050 (20.1%) Other Revenues - Non core 20,571 15,838 29.9% 4,733 39,035 30,931 26.2% Operating Costs 447,785 418,560 7.0% 29,225 899,414 845,855 6.3% EBITDA 145,040 137,020 5.9% 8,020 286,804 266,283 7.7% EBITDA Margin % 29.1% 29.4% (0.3%) 0.00 28.7% 28.5% EBITDAaL 119,792 113,499 5.5% 6,293 236,186 219,495 7.6% EBITDAaL Margin % 24.0% 24.4% (0.4%) 23.7% 23.5% Depreciation, Amortization and Impairment 94,265 90,183 4.5% 4,082 187,878 179,304 4.8% Operating Income (EBIT) 50,775 46,837 8.4% 3,938 98,926 86,979 13.7% CAPEX 77,392 70,606 9.6% 6,786 135,064 140,013 (3.5%) CAPEX / Revenues 15.5% 15.2% 13.5% 15.0%
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10 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 2Q26 vs 2Q25: • Chile total revenues reached Ch$ 498.6 billion, up 7.1% YoY, driven primarily by mobile revenue growth. o Mobile revenues reached Ch$ 342.6 billion, up 10.2% YoY, with services and equipment contributing almost equally in growth rate. o Mobile service revenues reached Ch$ 240.3 billion, up 10.2% YoY. The increase is a price and volume effect: service revenue grew 10.2% on a postpaid base that expanded 4.9%, together with a 10.1% rise in blended ARPU on the price adjustments implemented during 1Q26. o Mobile equipment revenues reached Ch$ 102.3 billion, up 10.4% YoY, reflecting a value effect where fewer handsets were sold at a materially higher average unit price, together with higher equipment financing income on greater financing penetration. o Fixed & ICT revenues from integrated voice, data and Internet networks for the business segment, together with digital and IT services and the 'Entel Hogar' residential offering, reached Ch$ 120.9 billion, up 1.1% YoY. The slight increase is mainly explained by the strong growth in "Entel Hogar Fibra" (+16.7% YoY), IT services (+7.6% YoY) and digital businesses (+6.3% YoY), partially offset by the reduction in wireless residential service (-47.0% YoY) and lower corporate data revenues (-8.1% YoY). o Wholesale revenues reached Ch$ 14.5 billion, down 24.6% YoY, mainly by the non-recurrence of a one-off effect recorded in the prior-year period and discontinuation of low-margin long-distance traffic. • EBITDA reached Ch$ 145.0 billion, up 5.9% YoY, with margin contraction of 35 bps (29.1% vs 29.4% in 2Q25). o Mobile EBITDA reached Ch$135.7 billion (+10.2% YoY, 37.1% margin), driven by (i) growth in service revenue (+10.2% YoY) sustained by the increase in Blended ARPU (+10.1% YoY) and a better mix towards postpaid (+4.9% YoY in subscribers), (ii) lower Blended churn (-120 bps, to 2.39%), and (iii) a stronger handset margin, together with operating efficiencies. o Fixed EBITDA declined to Ch$8.8 billion (-46.2% YoY), explained by lower B2B fixed EBITDA (- 26.7% YoY) and wholesale fixed EBITDA (-52.2% YoY), partially cushioned by the advance of fiber (FTTH RGUs +24.2% YoY) and the rationalization of the legacy wireless business (-54.0% in RGUs). 6M 2026 vs 6M 2025: Revenues in the first six months of 2026 reached Ch$ 998.3 billion, increasing 7.0% versus the same period of 2025, explained mainly by mobile revenue (+10.1%), where handset revenue grew +16.9% and service revenue +7.3%, and marginally by fixed and ICT revenue (+0.4%), partly offset by wholesale revenue (-20.1%) on the non-recurring effects described for the quarter.
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11 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 EBITDA in the first six months of 2026 reached Ch$286.8 billion, marking a 7.7% YoY increase. The growth is driven by stronger mobile EBITDA performance (+8.4% YoY), supported by higher handset sales and margin, which helped offset the decline in fixed and wholesale EBITDA. The EBITDA margin reached 28.7% (+18 bps YoY). The operating result was Ch$98.9 billion (+13.7%). CAPEX reached US$ 135.1 million, down 3.5%% YoY equivalent to 13.5% of revenues versus 15.0% in 1H25. • Mobile customer base reached 10,237,875 subscribers, up 0.5% YoY (+53,353), with net additions in postpaid (+396k) (+4.9% YoY) explained by additions in voice (+239k, +3.7% YoY) supported by a differentiated value proposition, underpinned by a best-in-class network (including unique direct- Mobile Customers (th.) 2Q26 2Q25 % Change Abs. Change 1Q26 % Change Postpaid Voice 6,689 6,451 3.7% 239 6,653 0.6% Prepaid Voice 1,777 2,120 (16.2%) (343) 1,926 (7.7%) M2M & IOT 1,772 1,614 9.8% 158 1,732 2.3% Total Mobile Customers (th.) 10,238 10,185 0.5% 53 10,311 (0.7%) ARPU Blended (CLP) 10,326 10,171 1.5% 155 10,190 1.3% ARPU Postpaid 12,256 12,180 0.6% 76 12,220 0.3% ARPU Prepaid 1,768 1,831 (3.4%) (63) 1,946 (9.1%) Blended Churn % 2.4% 3.6% (33.5%) (1.2%) 2.1% 12.2% Churn Postpaid 1.4% 1.5% (5.2%) (0.08%) 1.4% (1.9%) Churn Prepaid 4.8% 8.6% (43.9%) (3.8%) 3.5% 39.2% Blended MOU 214 240 (10.6%) (25) 214 (0.2%) Postpaid Effective GOU 36 29 24.2% 7 36 1.9% Fixed RGU (th.) 2Q26 2Q25 % Change Abs. Change 1Q26 % Change Fiber Internet 515 410 25.7% 105 483 6.5% Telephony 19 20 (5.6%) (1) 19 (0.7%) TV 112 79 42.3% 33 100 11.9% OTT (Bundled) 42 46 (7.8%) (4) 43 (0.8%) Wireless 40 86 (54.0%) (47) 43 (8.7%) Total RGU 728 640 13.7% 87 688 5.7% FTTh 2Q26 2Q25 % Change Abs. Change 1Q26 % Change ARPU 22,792 22,713 0.3% 79 23,101 (1.3%) Churn (2.9%) (3.5%) (16.9%) 0.6 (2.9%) 0.0
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12 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 to-cell satellite coverage), an improved customer experience, and IoT services (+158k, +9.8% YoY). Net additions in the last quarter increased in postpaid (+76k) (+0.9%) and decreased in prepaid (- 149k) (-7.7%). On a quarterly basis the base declined 0.7% (-72,987), as the prepaid run-off continued to run ahead of postpaid additions. • Blended mobile service ARPU based on Subtel data, which excludes M2M & IoT connections, stands at $10,326, a +10.1% increase compared to $9,379 in 2Q25, explained by postpaid ARPU (+7.3% YoY) supported by the price adjustments implemented during 1Q26, partially offset by prepaid ARPU (-7.1% YoY) following the normalization of the base after the database cleanup performed in 2Q25. On a sequential basis blended ARPU increased +1.5% versus 1Q26, with postpaid up +0.6% and prepaid down -3.4%. While fixed access charge increases implemented provided a positive pricing tailwind, this was offset by capture discounts deployed due to intensified competitive dynamics. • Blended churn rate reached 2.39% in 2Q26, decreasing from the 3.59% reported in 2Q25 (-1.20 p.p. YoY), mainly explained by lower churn in prepaid (-3.79 p.p. YoY), which reflects the high comparison base of 2Q25 associated with the database cleanup carried out under the new biometric regulation, together with lower churn in postpaid (-0.08 p.p. YoY) supported by a more stable and higher-value customer base. On a quarterly basis, blended churn increased +0.26 p.p. in 1Q26), mainly due to higher prepaid churn (+1.37 p.p. QoQ) while postpaid churn continued to improve (-0.03 p.p. QoQ). • Fixed connections (RGU) recorded 728k RGUs in 2Q26, increasing 13.7% YoY and 5.7% QoQ, driven by continued expansion in fiber internet (+25.7% YoY, +6.5% QoQ) reaching 515k connections, explained by stronger commercial execution and improved retention, supported by the expansion of the convergent customer base, together with the growth of TV (+42.3% YoY, +11.9% QoQ). In parallel, FTTH churn improved, declining from 3.48% to 2.89% (-16.9% YoY), while remaining broadly stable QoQ (+1 bp), reflecting a healthier customer mix; FTTH ARPU stood at CLP$22,792 (+0.3% YoY, -1.3% QoQ). These positive trends partially offset declines in wireless services (- 54.0% YoY, -8.7% QoQ) as customers migrate toward higher-quality technologies.
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13 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 Business Development by Segments2 i. Consumer Segment (B2C) – Chile The total mobile customer base in the Consumer segment reached 7,139,288 customers in 2Q26, down 2.3% YoY (-165k) and 1.7% QoQ (-127k). • Postpaid continues to expand at a healthy pace, reaching 5.4 million customers (+3.5% YoY) adding 179k subscribers driven by a differentiated value proposition: best- in-class network (including unique direct-to-cell satellite coverage), improved customer experience, and a strengthened benefits ecosystem. During the quarter net additions totaled +23k (+0.4% QoQ). • Prepaid net disconnections totaled -343k (-16.2% YoY, to 1,776,526 customers), explained by the database cleanup performed during 2Q25 associated with massive processes of deactivation of prepaid SIM cards that have no traffic, and also explained by the regulation that came into effect since February 2025 that requires identity verification through biometrics or advanced electronic signatures for the execution or modification of contracts, activation of SIMs, and sale of equipment. During the quarter disconnections totaled -149k (-7.7% QoQ). 2 Results by segment includes intercompany revenue. Mobile Customers (th.) 2Q26 2Q25 % Change Abs. Change 1Q26 % Change Postpaid Voice 5,355 5,176 3.5% 179 5,332 0.4% Prepaid Voice 1,777 2,119 (16.2%) (343) 1,926 (7.7%) M2M & IoT 8 10 (17.9%) (2) 8 (3.8%) Total 7,139 7,305 (2.3%) (165) 7,266 (1.7%) Fixed RGU (Th.) 2Q26 2Q25 % Change Abs. Change 1Q26 % Change Fiber Internet 494 396 24.5% 97 465 6.3% Telephony 18 19 (6.1%) (1) 18 (0.7%) TV 108 76 41.4% 32 97 11.7% OTT (Bundled) 41 45 (8.4%) (4) 41 (1.0%) Wireless 39 86 (54.1%) (47) 43 (8.8%) Total 700 623 12.4% 77 664 5.4%
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14 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 • RGUs for "Entel Hogar" in the residential segment reached 700k (including OTT TV), up +12.4% YoY due to growth in fiber connections, which added +97k in the year (+24.5% YoY). During the quarter fiber connections increased +29k (+6.3% QoQ) and total RGUs +36k (+5.4% QoQ). Entel Hogar's RGU performance in 2Q26 reflected a step-up in commercial execution and improved customer retention supported by the expansion of the convergent customer base, which increased its share of the total base from 56.5%% to 59.9% YoY. In parallel, churn improved, with total churn declining from 3.48% to 2.89% (-59 bps) evidencing a healthier mix. • B2C Chile total revenues reached Ch$330.7 billion in 2Q2026, a 10.8% YoY increase. The main growth driver was the Mobile business, which contributed Ch$295.5 billion (+11.2% YoY), accounting for roughly 93% of the segment's total growth. Within Mobile, Service revenues grew +10.2% YoY, supported by expansion of the postpaid subscriber base (+3.5% YoY) and improved ARPU reflecting improved monetization per line as the fixed access charge grew — postpaid revenues rose +12.1% YoY while prepaid declined -20.3% YoY; meanwhile, Handset revenues expanded +12.9% YoY, reflecting a more intense commercial cycle with higher volumes of financed handsets and a growing average ticket. Fixed Services reached revenues of Ch$35.2 billion (+7.2% YoY), led by Entel Hogar Fibra Ch$ million 2Q26 2Q25 % Change 6M26 6M25 % Change Revenue 330,747 298,520 10.8% 668,181 603,697 10.7% Mobile Business 295,550 265,685 11.2% 598,253 539,388 10.9% Services 197,915 179,629 10.2% 394,965 370,205 6.7% Postpaid 189,414 168,965 12.1% 377,120 347,870 8.4% Prepaid 8,501 10,664 (20.3%) 17,845 22,335 (20.1%) Handset 85,031 75,343 12.9% 178,567 150,310 18.8% Other business 12,603 10,713 17.6% 24,721 18,873 31.0% Fixed services 35,197 32,835 7.2% 69,929 64,309 8.7% Ch$ million 2Q26 2Q25 % Change 6M26 6M25 % Change EBITDA 101,102 90,223 12.1% 202,137 184,997 9.3% EBITDA Margin 30.6% 30.2% 30.3% 30.6% Mobile Business 107,005 95,425 12.1% 211,767 194,413 8.9% Mobile Margin 36.2% 35.9% 35.4% 36.0% Fixed Services (5,903) (5,202) 13.5% (9,630) (9,417) 2.3% Fixed Margin (16.8%) (15.8%) (13.8%) (14.6%)
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15 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 (+16.7% YoY), which now represents 97.5% of segment fixed revenues, partially offset by the decline of the legacy wireless service (-75.1% YoY). • B2C Chile EBITDA reached Ch$101.1 billion in 2Q2026, up 12.1% YoY. The EBITDA margin was 30.6%, expanding 0.3 pp versus 30.2% in 2Q25. o Mobile EBITDA reached Ch$107.0 billion, increasing +12.1% YoY. This improvement was underpinned by strong handset sales growth which, while structurally lower-margin than services, provided incremental volume to expand gross profit, higher services activity alongside pricing increases (postpaid revenues +12.1% YoY), and operating expense efficiencies. In relative terms, Mobile EBITDA margin expanded by 0.3 pp (from 35.9% to 36.2%). o Fixed EBITDA of Ch$ -5.9 billion in 2Q26, deteriorating by Ch$ 0.7 billion versus 2Q25 (-13.5% YoY). EBITDA margin contracted by 0.9 pp, from -15.8% to -16.8% of revenues. Fiber continued to be the main revenue engine, with revenues up 16.7% and the rationalization of legacy lines advancing (Wireless, OTT and Copper revenues down as customers migrate toward higher- quality technologies); however, these effects were offset by higher costs associated with the ramp-up of the Fiber operation. Overall, the segment remains on a path toward break-even, supported by the ongoing mix shift toward Fiber, although the quarter reflects the cost of scaling the fiber footprint. 6M 2026 vs 6M 2025: Revenues in the first six months of 2026 reached Ch$ 668.2 billion, up 10.7% versus the Ch$ 603.7 billion of the same period of 2025, reflecting the same mobile-led, price-driven growth recorded in the quarter. Mobile business revenue advanced 10.9%, with handset revenue improving +18.8% and service revenue +6.7%, while fixed services revenue rose +8.7%. EBITDA in the first six months of 2026 reached Ch$ 202.1 billion, up 9.3% versus the Ch$ 185.0 billion of the same period of 2025, driven by the mobile business through gross margin. EBITDA margin reached 30.3%.
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16 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 ii. Corporate and SME Segment (B2B) – Chile • The mobile customer base in the Corporate & SME segment reached 3,098,587 customers in 2Q26, increasing 7.6% YoY (+219k) and 1.8% QoQ (+54k). Growth was driven by managed connectivity from Entel Digital (M2M and IoT) (+11.0% YoY, +2.6% QoQ) and postpaid voice (+4.7% YoY, +1.1% QoQ), partially offset by BAM and other connections (-2.7% YoY; -1.3% QoQ). Mobile Customers (th.) 2Q26 2Q25 % Change Abs. Change 1Q26 % Change Postpaid Voice 1,335 1,275 4.7% 60 1,321 1.1% BAM and others 121 125 (2.7%) (3) 123 (1.3%) Managed Connectivity (Entel Digital)1,643 1,480 11.0% 163 1,602 2.6% Total 3,099 2,880 7.6% 219 3,045 1.8% Fixed RGU (Th.) 2Q26 2Q25 % Change Abs. Change 1Q26 % Change Fiber 21 13 61.7% 8 19 13.3% TV, Telephony & OTT 6 4 49.3% 2 5 13.1% Wireless 0 0 (15.0%) (0) 0 - Total 28 17 58.0% 10 24 13.1%
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17 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 • B2B Chile total revenues reached Ch$ 152.5 billion, up 1.8% YoY. • Mobile business revenue increased 6.1% YoY, explained by handset sales (+11.5%) and mobile service revenue (+3.4%). The increase in mobile service revenue is attributed to growth in the postpaid voice subscriber base (+4.7% YoY), in managed connectivity services from Entel Digital (+11.0% YoY) and Roaming driven by higher traffic volumes. Handset revenue increased +11.5%, reflecting a mix shift toward higher-priced devices, increased PRO plan sales bundled with mobile equipment, and higher interest income from installment financing arrangements. • Fixed services revenue decreased 1.1% YoY due to lower data revenue (-8.1%) associated with reduced activity in telco equipment sales and coverage infrastructure deployments, partially offset by growth in IT services (+7.6%) and the expansion of fiber connections (+61.7% YoY in RGUs). EBITDA reached Ch$37.0 billion, decreasing 9.7% YoY. The EBITDA margin was 24.3%. • Mobile Business EBITDA reached Ch$24.4 billion, increasing 2.6% YoY, supported by growth in handset and service revenues. The mobile margin was 38.0%, contracting 1.3 percentage points compared with 39.3% in 2Q25, reflecting the greater weight of handset sales in the revenue mix and connectivity costs. • Fixed Services EBITDA reached Ch$12.6 billion, decreasing 26.7% YoY from Ch$17.2 billion in 2Q25. The fixed margin was 14.3%, contracting 5.0 percentage points compared with 19.3% in 2Q25, explained by lower revenues in higher-margin lines — data and IP Solutions. 6M 2026 vs 6M 2025: Revenues in the first six months of 2026 reached Ch$ 301.4 billion, up 1.7% versus the Ch$ 296.3 billion of the same period of 2025, with mobile business revenue up 7.4% and fixed services revenue down 2.2%. EBITDA in the first six months of 2026 reached Ch$ 71.4 billion, up 4.5% versus the Ch$ 68.3 billion of the same period of 2025, with an EBITDA margin of 23.7%, 0.6 p.p. above the 23.1% of 6M25.
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18 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 ii.1 Corporate and SME Segment (B2B Connectivity) – Chile • Corporate and SME B2B Chile total revenues reached Ch$ 118.4 billion, up 0.5% YoY. o Mobile business revenue increased 6.1% YoY, explained by handset sales (+11.5%) and mobile service revenue (+3.4%). The increase in mobile service revenue is attributed to growth in the postpaid voice subscriber base (+4.7% YoY), and Roaming driven by higher traffic volumes. Handset revenue increased +11.5%, reflecting a mix shift toward higher-priced devices, increased PRO plan sales bundled with mobile equipment, and higher financing sales of equipment. o Fixed revenues decreased 5.4% YoY due to lower data revenue (-8.1%) associated with reduced activity in telco equipment sales and coverage infrastructure deployments, partially offset by growth in IT services, Entel Hogar for business and the expansion of fiber connections (+61.7% YoY in RGUs). Mobile Customers (th.) 2Q26 2Q25 % Change Abs. Change 4Q25 % Change Postpaid Voice 1,335 1,275 4.7% 60 1,306 2.2% BAM and others 121 125 (2.7%) (3) 123 (1.8%) Total 1,456 1,400 4.0% 56 1,429 1.9% Fixed RGU (Th.) 2Q26 2Q25 % Change Abs. Change 4Q25 % Change Fiber 21 13 61.7% 8 16 30.6% TV, Telephony & OTT 6 4 49.3% 2 5 29.1% Wireless 0 0 (15.0%) (0) 0 - Total 28 17 58.0% 10 21 30.0% Ch$ million 2Q26 2Q25 % Change 6M26 6M25 % Change Revenue 118,397 117,809 0.5% 236,897 232,732 1.8% Mobile Business 64,081 60,398 6.1% 129,466 120,563 7.4%Handset 20,935 18,776 11.5% 43,306 38,339 13.0% Fixed services 54,316 57,412 (5.4%) 107,431 112,169 (4.2%)
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19 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 ii.2 Corporate and SME Segment (Entel Digital) – Chile • Entel Digital B2B Chile total revenues reached Ch$ 34.1 billion, up 6.7% YoY (+Ch$ 2.1 billion). The advance was broad rather than concentrated: IT and managed services, which account for 53.5% of the unit, grew 6.8%, and the remaining digital lines grew 6.6%. Mobile Customers (th.) 2Q26 2Q25 % Change Abs. Change 1Q26 % Change Managed Connectivity 1,643 1,480 11.0% 163 1,602 2.6% Total 1,643 1,480 11.0% 163 1,602 2.6% Ch$ million 2Q26 2Q25 % Change 6M26 6M25 % Change Revenue 34,065 31,924 6.7% 63,857 63,035 1.3% IT manage services 18,230 17,067 6.8% 32,065 30,984 3.5% Digital Solutions 15,835 14,858 6.6% 31,792 32,051 (0.8%)
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20 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 IV. Peru: Financial Results and Operating Figures3 Peru figures converted at the average exchange rate of the period 2Q26. • Peru total revenues reached US$310.0 million, increasing 7.9% YoY driven by growth in mobile revenue (+7.6%). • Mobile revenues increased 7.6% YoY due to 11.6% growth in handset revenues and 5.6% in service revenue. Mobile service revenue grew 5.6% YoY, driven by growth in the postpaid customer base (+13.2% YoY), while commercial momentum continued to build through presential (in-store) channels that have replaced ambulatory channels. The shift produces higher-quality additions — with lower churn (blended churn down to 4.83% from 5.48%) and better unit economics, supported by a focus on high-quality sales and an efficient, competitive channel mix with greater in-person participation, leveraged by significant improvements in network capacity, coverage, and quality. Mobile Equipment Revenue amounted to US$99.0 million, growing 11.6% YoY. The increase in equipment revenue reflected higher cash-handset volumes associated with postpaid commercial activity, together with a higher average handset ticket and continued gains in handset market share. US$ Thousand 2Q26 2Q25 % Change 6M26 6M25 % Change Total Revenue 309,983 287,239 7.9% 615,021 573,104 7.3% Peru Mobile & Fixed Revenue 304,584 282,998 7.6% 604,441 563,586 7.2% Mobile Revenues 294,112 273,388 7.6% 584,024 543,869 7.4% Mobile Service Revenue 195,064 184,656 5.6% 387,800 369,704 4.9% Mobile Equipment Revenue 99,048 88,732 11.6% 196,224 174,164 12.7% Fixed & ICT Revenue 10,472 9,610 9.0% 20,416 19,718 3.5% WholeSale Revenue & Others 2,056 2,189 (6.1%) 4,143 4,404 (5.9%) Other Revenues - Non core 3,343 2,052 62.9% 6,437 5,114 25.9% Operating Costs 290,215 274,796 5.6% 577,353 547,574 5.4% EBITDA 82,173 73,045 12.5% 161,938 145,192 11.5% EBITDA Margin % 26.5% 25.4% 26.3% 25.3% EBITDAaL 58,786 50,745 15.8% 114,865 101,569 13.1% EBITDAaL Margin % 19.0% 17.7% 18.7% 17.7% Depreciation, Amortization and Impairment 62,405 60,602 3.0% 124,271 119,662 3.9% Operating Income (EBIT) 19,768 12,444 58.9% 37,667 25,531 47.5% CAPEX 53,772 40,013 34.4% 91,350 94,005 (2.8%) CAPEX / Revenues 17.3% 13.9% 14.9% 16.4%
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21 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 • Fixed & ICT revenue increased 9.0% YoY to US$10.5 million, with IP and IT services standing out off a smaller base, supported by higher digital license sales following the creation of a dedicated sales force for the local digital unit. Fiber commercial rollout is expected to begin during the last quarter of 2026, following the signing of the agreement with Wi-Net in December 2025. • Wholesale Revenue & Others reached US$2.1 million, declining 6.1% YoY. EBITDA reached US$82.2 million, up 12.5% YoY, with margin expansion of 110 bps (26.5% vs 25.4% in 2Q25). Growth was driven by (i) mobile service revenue (+5.6% YoY) sustained by strong postpaid subscriber growth (+13.2% YoY), (ii) lower blended churn (-65 bps, to 4.83%), and (iii) a higher equipment contribution (revenue +11.6% YoY), together with operating efficiencies from the migration toward presential (in-store) channels with better unit economics. 6M 2026 vs 6M 2025: Revenues in the first six months of 2026 reached US$ 615.0 million, up 7.3% versus the same period of 2025, led by mobile revenue (+7.4%), explained by handset revenue growth (+12.7%), service revenue (+4.9%) and fixed revenue up 3.5%. EBITDA in the first six months of 2026 reached US$ 161.9 million, up 11.5% versus the same period of 2025, with an EBITDA margin of 26.3%, 1.0 p.p. above the 25.3% of 6M25. CAPEX reached US$ 91.3 million, down 2.8%% YoY equivalent to 14.0% of revenues versus 14.9% in 1H25. Mobile Customers (th.) 2Q26 2Q25 Change % Abs. Change 1Q26 Change % Postpaid Voice 5,271 4,656 13.2% 614 5,103 3.3% Prepaid Voice 4,028 4,950 (18.6%) (921) 4,178 (3.6%) M2M & IOT 717 561 27.7% 156 659 8.8% Total Mobile Customers (th.) 10,015 10,167 (1.5%) (151) 9,940 0.8% ARPU (USD) 5.9 5.9 1.0% 0 5.9 1.5% ARPU Postpaid 9.1 9.5 (3.6%) (0) 9.3 (1.9%) ARPU Prepaid 2.2 2.1 3.1% 0 2.2 (1.4%) Blended Churn % 4.8% 5.5% (11.9%) 4.6% 5.8% Churn Postpaid 3.4% 3.9% (13.6%) 3.4% (0.9%) Churn Prepaid 6.8% 7.1% (3.5%) 0.8% 6.0% 13.3%
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22 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 • Total mobile customer base closed 2Q26 at 10,015,289 customers, a 1.5% contraction YoY while returning to sequential growth (+0.8% QoQ). Postpaid voice reached 5,270,504 customers, a record 13.2% YoY increase and +3.3% QoQ. Prepaid voice declined -18.6% YoY and -3.6% QoQ, with the pace of disconnections moderating versus the prior quarter. M2M & IoT connections reached 716,673, up 27.7% YoY. The postpaid base expanded on solid commercial execution through presential channels. The prepaid contraction reflects industry-wide security-driven regulations restricting wholesale and street-channel SIM distribution, • Blended mobile ARPU reached US$5.94, increasing 1.0% YoY. Postpaid ARPU stood at US$9.11, declining 3.6% YoY (-1.9% QoQ) reflecting competitive pressure on promotional discounts alongside higher sales volumes. Prepaid ARPU rose to US$2.18, up 3.1% YoY due to base cleanup and the decline in wholesale channels restricted by regulation. • Blended churn improved to 4.83% (-65 bps YoY), with postpaid churn dropping to 3.39% and prepaid churn to 6.85%, supported by a significant improvement in involuntary churn and by the anti-spam law that reduced port-out activity. • Total Fixed RGUs closed the quarter at 32,126, -26.6% YoY, driven almost entirely by the contraction in the Wireless portfolio (from 26,728 to 15,378, -42.5% YoY) as the legacy base continues to run off. Fiber RGUs remained broadly stable. Fixed RGU (Th.) 2Q26 2Q25 Change % Abs. Change 1Q26 Change % Wireless 15 27 (42.5%) (11) 17 (9.1%) Fiber 17 17 (1.8%) (0) 17 0.1% Total RGU 32 44 (26.6%) (12) 34 (4.6%)
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23 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 V. Segment Revenue and EBITDA Financial Information4 Ch$ million 2Q26 2Q25 % Change Abs. Change 6M26 6M25 % Change Consumers (B2C) - Chile Revenue 330,875 298,520 10.8% 32,355 668,181 603,697 10.7% EBITDA 101,102 90,223 12.1% 10,879 202,137 184,997 9.3% EBITDA Margin (%) 30.6% 30.2% 1.1% 0 30.3% 30.6% (1.3%) Corporate and SME (B2B) - Chile Revenue 152,462 149,734 1.8% 2,729 301,413 296,321 1.7% EBITDA 37,002 40,988 (9.7%) (3,987) 71,433 68,325 4.5% EBITDA Margin (%) 24.3% 27.4% (11.3%) (0) 23.7% 23.1% 2.8% Wholease & Others - Chile Revenue 14,919 17,700 (15.7%) (2,782) 32,283 34,840 (7.3%) EBITDA 6,421 8,355 (23.1%) (1,933) 13,063 15,536 (15.9%) EBITDA Margin (%) 43.0% 47.2% (8.8%) (0) 40.5% 44.6% (9.3%) Extraordinary and Intercompany adjustments Revenue 304 (556) (154.7%) 860 (1,808) (2,025) (10.7%) EBITDA 516 (2,546) (120.2%) 3,061 171 (2,575) (106.6%) Chile Mobile & Fixed Services (includes others) Revenue 498,561 465,398 7.1% 33,163 1,000,069 932,834 7.2% EBITDA 145,040 137,020 5.9% 8,020 286,804 266,283 7.7% EBITDA Margin (%) 29.1% 29.4% (1.2%) (0) 28.7% 28.5% 0.5% Peru Mobile & Fixed Services (includes others) Revenue 277,276 253,624 9.3% 23,652 549,146 507,195 8.3% EBITDA 73,507 64,494 14.0% 9,013 144,570 128,435 12.6% EBITDA Margin (%) 26.5% 25.4% 4.3% 0 26.3% 25.3% 4.0% Call Center Chile & Peru (includes intercompany) Revenue 18,320 20,517 (10.7%) (2,197) 36,365 39,739 (8.5%) EBITDA 1,163 1,153 0.9% 10 1,843 1,554 18.6% EBITDA Margin (%) 6.3% 5.6% 13.0% 0 5.1% 3.9% 29.6% Extraordinary and Intercompany adjustments Revenue (13,625) (16,522) (17.5%) 2,896 (29,468) (32,136) (8.3%) EBITDA (62) (18) 243.9% (44) (94) (58) 62.8% Consolidated Results Revenue 780,531 723,018 8.0% 57,514 1,556,111 1,447,633 7.5% EBITDA 219,648 202,649 8.4% 17,000 433,123 396,214 9.3% EBITDA Margin (%) 28.1% 28.0% 0.4% 0 27.8% 27.4% 1.7% EBIT 68,660 57,760 18.9% 10,900 132,369 108,483 22.0% EBIT Margin 8.8% 8.0% 10.1% 0 8.5% 7.5% 13.5%
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24 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 VI. EBITDA Breakdown by Services3 About Entel Entel is a company with a 62-year history and is one of the largest publicly traded corporations on the Santiago Stock Exchange. It is a leader in technology and telecommunications, operating in Chile and Peru, with a combined subscriber base exceeding 20.3 million mobile users and consolidated annual revenues of $3,032 billion as of December 2025. The company provides mobile and fixed connectivity services, along with a wide range of IT and digital services for individuals, businesses, and large corporations. In each of these services, Entel delivers simple and efficient experiences, supported by a robust state-of-the-art infrastructure and a strong brand image and customer service. 3 a): includes wholesales mobile services, (b): includes wholesales fixed services, (c): Others: Call Center & Others. Ch$ million 2Q26 2Q25 % Change Abs. Change 6M26 6M25 % Change EBITDA 219,648 202,649 8.4% 17,000 433,123 396,214 9.3% Mobile Services Chile (a) 135,723 123,193 10.2% 12,530 270,857 249,778 8.4% Fixed Services (b) 8,802 16,373 (46.2%) (7,571) 15,776 19,080 (17.3%) Others (C) 1,616 (1,411) (214.5%) 3,027 1,919 (1,079) (277.9%) Peru Mobile and Fixed Services 73,507 64,494 14.0% 9,013 144,570 128,435 12.6%
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25 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 VII. Glossary of terms ARPU: Average Service Revenue per User (presented on a monthly basis). BAFI: Fixed Wireless Broadband. BPO: Business Process Outsourcing. CAPEX: Capital Expenditures. Churn: Disconnection Rate; presented on a monthly basis. Consumerization: possibility to access personal content and/or applications, using mobile access contracted by the enterprise. DLD: Domestic Long Distance. Data mobile revenue: includes Internet mobile and MBB revenues. EBIT: Operating earnings. EBITDA: Operating earnings before interest, taxes, depreciation, amortization and fixed asset impairment. EDGE: Enhanced Data rates for GSM Evolution; technology that provides GSM the capacity to handle data services. EPS: Earnings per Share. GAAP: Generally Accepted Accounting Principles. GOU: Gigabyte of Use per subscriber; the ratio of data traffic in a given period to the average number of subscribers during the same period; presented on a monthly basis. EFFECTIVE GOU: Gigabyte of Use per subscriber; the ratio of data traffic in a given period to the average number of subscribers that use the service during the same period; presented on a monthly basis. GPON: Gigabite Passive Optical Network. GPRS: General Packet Radio Service; enables GSM networks to offer higher capacity, Internet-based content and packet-based data services; a second-generation technology. GSM: Global System for Mobile communications. HSPA: High Speed Packet Access. A family of high-speed 3G digital data services that use GS M technology. The service works with HSPA mobile phones, as well as laptops and portable devices with HSPA modems. HPPTT: High Performance Push to Talk. HSDPA: High Speed Downlink Packet Access; an enhanced (third generation) mobile technology in the High - Speed Packet Access (HSPA) family. HSDPA + Dual Carrier : standard based on HSPA that is defined in 3GPP UMTS release 8, which enables mobile broadband speeds of up to 22 Mbps iDEN. iDEN: Integrated Digital Enhanced Network. Motorola-developed technology for an integrated radio system called MIRS (Motorola Integrated Radio System). IFRS: International Financial Reporting Standards. ILD: International Long Distance. IT: Information Technology. LIS: Lines in Service. LTE: Long -term Evolution, the fourth generation of radio technologies designed to increase the capacity and speed of mobile telephone networks. K: denotes thousand. M2M: Machine to Machine, includes the automation of communication processes between machines (Machine to Machine), between mobile devices and machines (Mobile to Machine), and between man and machines (Man to Machine). MBB: Mobile broadband including M2M data cards. Mobile Service Chile Revenue: Includes mobile services and device revenue.
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26 2Q & First Half 2026 Results – Empresa Nacional de Telecomunicaciones S.A August 3rd, 2026 Mobile Service Peru Revenue: Includes mobile services and device revenue. Mobile Data Revenue: Includes mobile Internet and MBB revenue. Monthly Fee: A flat monthly fee charged to a customer for use of a system service. Monthly Service: Fee charged to the customer for overage consumption in a month. MOU: Minutes of Use per subscriber; the ratio of traffic in a given period to the average number of subscribers during the same period; presented on a monthly basis. MPLS: Multiprotocol Label Switching; a switching technology created to provide virtual circuits in IP networks. Multimedia Revenue: Includes voice, mobile data and MBB revenue. MVNO: Mobile virtual network operator is a wireless communications services provider that does not own the wireless network infrastructure over which it provides services to its customers. Net Financial Debt: Total short- and long -term debt, less cash & cash equivalents and less current and non - current financial assets. Net Debt / EBITDA: The ratio between Net Financial Debt to trailing 12 -month period income before interest, taxes, depreciation and amortization. NGN: Next Generation Network; the convergence of publicly switched telephone networks (PSTN), voice networks, the internet and data networks. Other Revenue – Non-core: revenue which are not a part of the Company’s core business; concepts included are gain / (loss) on sale of fixed assets and interest accrued on past due invoices and leasing operations. PUE: Power Usage Effectiveness is a metric defined by The Green Grid to measure the energy efficiency of data centers. RAN Sharing (Radio Access Network sharing): Technology strategy that provides for the sharing of antennas between different operators RGU: Revenue Generating Units; number of services subscribed per customer, commonly used for residential services. SAC: Subscriber Acquisition Cost; the sum of handset subsidies, marketing expenses and commissions to distributors for handset activation. Handset subsidies are calculated as the difference between device cost and device revenue. SG&A: Selling, General and Administrative Expenses. Simplified free cash flow: The result of (EBITDA – IFRS 16 leases – CAPEX – License payments – Net Financial Expenses (excluding IFRS 16)). SME: Small & Medium-Sized Enterprises. SMS: Short Message Service. TAB Rate: Chile Daily average interest rate that considers all financing operations for up to 1 year. V AS: Value Added Services, includes non -core services, all services beyond standard voice and data transmissions. Services included are; chat, concourses, general information, GPRS, IVR, ringtones, games, video content and others. V AS Revenue: Mobile revenue including V AS services, SMS and MSM. WIMAX: Worldwide Interoperability for Microwave Access, a standard-based wireless technology, which provides network access. 3.5G: Commercial name for HSDPA, the third-generation service provided by Entel. 4G: Fourth generation of mobile telecommunications technology, succeeding 3G and preceding 5G. 5G: Fifth-generation wireless is the latest iteration of cellular technology, engineered to increase the speed and responsiveness of wireless networks, enabling an increase in the amount of data transmitted over wireless systems due to more available bandwidth and advanced antenna technology.