1934 Act Registration No. 1-31731 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 Dated March 31, 2025 Chunghwa Telecom Co., Ltd. (Translation of Registrant's Name into English) 21-3 Xinyi Road Sec. 1, Taipei, Taiwan, 100 R.O.C. (Address of Principal Executive Office) (Indicate by check mark whether the registrant files or will file annual reports under cover of form 20-F ...

Financial Data and Key Metrics Changes - The company reported exceptional financial performance for Q4 2024, indicating strong growth compared to previous quarters [5]. Business Line Data and Key Metrics Changes - Specific details regarding the performance of various business lines were not provided in the available content [4]. Market Data and Key Metrics Changes - Information on market performance and key metrics was not included in the provided excerpts [4]. Company Strategy and Development Direction and Industry Competition - The management is expected to discuss the company's achievements and business overview, which may include strategic directions and competitive positioning in the industry [4]. Management Comments on Operating Environment and Future Outlook - Management's comments on the operating environment and future outlook were anticipated but not detailed in the provided content [4]. Other Important Information - The conference call included disclaimers and notes concerning forward-looking statements, indicating a focus on future performance expectations [4]. Q&A Session Summary - The Q&A session details were not available in the provided excerpts [4].

Core Viewpoint - Chunghwa Telecom reported strong financial performance in 2024, achieving a seven-year high in full-year revenue and exceeding profitability guidance, driven by growth in mobile and ICT services [3][4]. Financial Highlights - Total revenue for Q4 2024 increased by 5.6% to NT$ 65.35 billion [4][7]. - Full-year revenue for 2024 rose by 3.1% to NT$ 230.03 billion [4][10]. - Operating income for Q4 2024 increased by 11.5% to NT$ 11.65 billion, with an operating margin of 17.83% [12]. - Net income attributable to stockholders for Q4 2024 increased by 9.0% to NT$ 9.00 billion, with basic earnings per share (EPS) of NT$ 1.16 [12][19]. - EBITDA for Q4 2024 was NT$ 21.59 billion, up 5.9% year-over-year, with an EBITDA margin of 33.04% [15][19]. Business Segment Performance - Consumer Business Group revenue increased by 2.2% to NT$ 37.33 billion, driven by mobile service growth and fixed broadband upgrades [4][8]. - Enterprise Business Group revenue rose by 10.2% to NT$ 23.96 billion, with ICT business revenue growing by 24.1%, particularly in IDC, cloud, and cybersecurity services [4][9]. - International Business Group revenue decreased by 2.3% to NT$ 2.50 billion, primarily due to a decline in international voice revenue [4][10]. Subscriber Metrics - As of December 31, 2024, mobile subscribers slightly decreased by 0.1% to 13.12 million, while mobile service revenue increased by 1.7% year-over-year [16]. - Fixed broadband subscribers increased by 0.6% to 4.43 million, with fixed broadband revenue growing by 2.9% year-over-year [17]. Future Guidance - For 2025, the company expects total revenue to increase by NT$ 2.71 to NT$ 3.71 billion, or 1.2% to 1.6%, to NT$ 232.74 to NT$ 233.74 billion [20][23]. - Operating costs and expenses for 2025 are projected to rise by NT$ 4.31 to NT$ 4.38 billion, or 2.4% [20][23].

Core Viewpoint - Chunghwa Telecom has outlined its strategic focus for 2025, emphasizing sustainable growth through innovation in ICT services, AI applications, and digital resilience while addressing market demands and national policies [2][4][8]. Financial Guidance - The company expects total revenue for 2025 to increase by NT$ 2.71 to NT$ 3.71 billion, or 1.2% to 1.6%, reaching NT$ 232.74 to NT$ 233.74 billion compared to 2024 [4][9]. - Operating costs and expenses are projected to rise by NT$ 4.31 to NT$ 4.38 billion, or 2.4%, totaling NT$ 187.58 to NT$ 187.65 billion [5][9]. - Income from operations is anticipated to decrease by NT$ 0.16 to NT$ 1.58 billion, or -0.3% to -3.4%, resulting in NT$ 45.30 to NT$ 46.72 billion [6][9]. Strategic Focus Areas - Chunghwa Telecom will concentrate on three strategic pillars: "Sustainable Future," "Smart Empowerment," and "Digital Resilience," with six key themes driving growth: "Sustainability Opportunities," "AI Applications," "Resilience Enhancement," "Next-Generation Networks," "Reinvestments," and "Asset Revitalization" [2][3]. - The company aims to enhance user value and increase Average Revenue Per User (ARPU) through cross-sector collaboration and addressing customer needs [2][3]. Market Strategies - The three business groups—Consumer, Enterprise, and International—will focus on market expansion and collaboration to explore new opportunities [3]. - The technical divisions will develop energy-efficient, all-photonic networks while enhancing data governance and deploying advanced technologies [3]. Capital Expenditure - Acquisition of Property, Plant, and Equipment is expected to rise by NT$ 3.37 billion to NT$ 32.36 billion, driven by investments in AI data centers, submarine cables, and 5G deployment [7][9]. Management Philosophy - The management philosophy emphasizes simplification, pragmatism, and intelligence to ensure stable growth and establish a strong presence in emerging markets and technologies [8].

1 © Chunghwa Telecom 3Q 2024 Operating Results November 6, 2024 Disclaimer © Chunghwa Telecom STATEMENT REGARDING UNAUDITED FINANCIAL INFORMATION The unaudited financial information under T-IFRSs in this presentation is preliminary and subject to adjustments and modifications. Adjustments and modifications to the financial statements may be identified during the course of the audit /review work, which could result in significant differences from this preliminary unaudited financial information. NOTE CONCERN ...

Financial Data and Key Metrics Changes - For Q3 2024, the company's revenue exceeded 55 billion, marking a 3.6% increase from the same quarter last year, driven primarily by significant growth in the ICT business [29] - Income from operations and net income saw slight declines of 0.8% and 1.0% respectively, largely due to higher manpower costs and increased broadcast rights fees for the Olympic Games [30][31] - For the first nine months of 2024, revenue grew by 2.1% year-over-year, while income from operations and net income decreased by 1.9% and 1.5% respectively [32] Business Line Data and Key Metrics Changes - Mobile service revenue recorded a 2% year-over-year increase, maintaining growth for 14 consecutive quarters, with a 43% uplift in average monthly fees from 5G migration [14] - Fixed broadband revenue and ARPU increased by 3.4% and 1.5% year-over-year respectively, contributing positively to overall performance [16] - Total CBG revenue increased by 2.1% year-over-year, driven by mobile service revenue growth and the exclusive broadcast of the Paris Olympic Games [17] Market Data and Key Metrics Changes - Chunghwa Telecom's overall subscriber share of Taiwan's mobile market reached 37.8%, with a 5G subscriber market share of 38.8% [13] - The company's ICT revenue saw a 22% year-over-year increase, primarily fueled by strong performance in emerging services [21] Company Strategy and Development Direction - The company aims to maximize shareholder return by focusing on high-margin products and services while streamlining operations to improve efficiency [44] - Strategic investments in employee talent and content offerings are emphasized to sustain operational momentum and drive future growth [30][33] - The company is committed to ESG best practices, having received verification for its Net Zero greenhouse gas emissions target, aiming for Net-Zero by 2045 [12] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in expanding industry leadership, particularly in the mobile market, and highlighted the successful launch of advanced technologies [9][10] - The management acknowledged challenges such as increased operational costs but emphasized that these are viewed as strategic investments for future growth [41] Other Important Information - The company successfully launched the world's first IOWN all-photonic communication link between Taiwan and Japan, enhancing connectivity for AI-driven applications [10] - The company is transitioning air-cooled solutions to liquid-cooled solutions to support Nvidia AI servers, enhancing power usage effectiveness [11] Q&A Session Summary Question: Reasons for profit decline in consumer and enterprise segments - Management attributed the profit decline to increased employee costs, higher electricity costs, and significant investments in Olympic video content, which are viewed as strategic investments for future growth [41] Question: Contribution of emerging enterprise application revenue to total enterprise revenue - The specific percentage contribution of emerging enterprise application revenue to total enterprise revenue was not disclosed during the call [42] Question: Company's strategy for revenue increase going forward - The company plans to focus on high-margin products, streamline operations, and enhance customer loyalty through bundling services and rewards programs to drive revenue growth [44]

Core Viewpoint - Chunghwa Telecom reported solid financial results for Q3 2024, achieving a total revenue increase of 3.6% year-over-year, driven by growth across all business segments, despite a slight decline in operating income and net income [1][2][4]. Financial Highlights - Total revenue for Q3 2024 was NT$ 55.61 billion, up 3.6% from the previous year [1][4]. - Consumer Business Group revenue rose by 2.1% to NT$ 34.43 billion, with mobile service revenue increasing by 3% due to 5G migration and higher postpaid subscribers [1][5]. - Enterprise Business Group revenue increased by 5.9% to NT$ 17.60 billion, driven by a 22% growth in ICT business revenue [1][6]. - International Business Group revenue grew by 1.4% to NT$ 2.37 billion, with income before tax rising by 11% year-over-year [1][7]. - Total operating costs and expenses increased by 4.8% to NT$ 44.23 billion, primarily due to higher manpower costs and one-time broadcasting rights fees [1][8]. - Operating income decreased by 0.8% to NT$ 11.38 billion, with a margin of 20.5% [1][9]. - Net income attributable to stockholders decreased by 1% to NT$ 9.01 billion, with basic earnings per share at NT$ 1.16 [1][9]. Business Segment Performance - The Consumer Business Group maintained growth, supported by 5G migration, steady fixed broadband revenue, and increased OTT revenue from exclusive broadcasting rights [2][5]. - The Enterprise Business Group's performance was bolstered by significant growth in ICT services, particularly in 5G private networks and big data analysis [2][6]. - The International Business Group's growth was driven by demand for ICT services in international markets, with a new European subsidiary commencing operations [2][7]. Technological and ESG Initiatives - Chunghwa Telecom initiated the world's first IOWN APN between Taiwan and Japan, and is the exclusive provider of OneWeb low-earth-orbit satellite services in Taiwan [3]. - The company received SBTi verification for its Net-Zero greenhouse gas emissions target, committing to achieve Net-Zero by 2045 [3].

Core Insights - Nokia has been selected by Chunghwa Telecom (CHT) for a one-year extension deal to modernize its 5G network in Taiwan, focusing on enhancing performance, capacity, and energy efficiency in preparation for the 5G-Advanced era [2][6] - The deal includes the deployment of Nokia's high-performance, energy-efficient AirScale solutions, including Habrok Massive MIMO radios and the MantaRay solutions for network monitoring and optimization [1][3][4] Network Upgrade Details - The upgrade will utilize Nokia's AirScale portfolio, featuring baseband, Massive MIMO radios, and Remote Radio Head products, specifically the lightweight Habrok radios in 32 TRX and 64 TRX versions [3] - Nokia's ReefShark System-on-Chip technology will power these solutions, providing superior coverage and capacity for CHT's customers [3] AI and Energy Efficiency - CHT will implement Nokia's AI-powered MantaRay solutions, which include MantaRay NM for network monitoring and MantaRay SON for network optimization and automation [4] - The deal aims to achieve significant energy savings through advanced RAN software features, including deep sleep mode and MIMO muting, to reduce radio network power consumption [4] Long-term Partnership - This agreement continues the long-term partnership between Nokia and CHT, which has been in place since the deployment of 2G networks [5] - The collaboration is expected to enhance CHT's network performance and sustainability efforts by reducing energy consumption and carbon emissions [6]

The Zacks Diversified Communication Services industry is poised to benefit from healthy demand trends led by increased fiber densification and accelerated 5G deployment across the globe. However, high capital expenditures for infrastructure upgrades, unpredictable raw material prices, geopolitical conflicts and elevated inventory levels amid a challenging macroeconomic environment and uncertain market conditions have dented the industry's profitability. Nevertheless, Chunghwa Telecom Co., Ltd. (CHT) , Telef ...

1934 Act Registration No. 1-31731 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 Dated September 30, 2024 Chunghwa Telecom Co., Ltd. (Translation of Registrant's Name into English) 21-3 Xinyi Road Sec. 1, Taipei, Taiwan, 100 R.O.C. (Address of Principal Executive Office) (Indicate by check mark whether the registrant files or will file annual reports under cover of form 2 ...