Message from Chairman
2025 was a year of advancing numerous projects and reviewing milestone targets. Whether in climate response, energy transition, or people-centric development, sustainability has become an increasingly clear path and a journey we must accelerate. At the same time, we witnessed various Environmental, Social, and Governance (ESG) challenges. TWC also experienced difficult yet reflective moments that we must confront courageously and resolve pragmatically. From the earthquakes early in the year, to torrential rains in southern Taiwan caused by Typhoon Danas and the southwest monsoon in July, debris-flow disasters caused by the Matai’an River dammed lake (馬太鞍溪堰塞湖) in September, and intense autumn typhoon rainfall in October, these events caused loss of life and damaged numerous water supply facilities. Internationally, economic uncertainty, regional instability, and AI development featured prominently in the media, bringing unavoidable impacts on corporate operations. Following these 2025 shocks, whether through threats to asset availability or rising operational costs and management challenges under extreme events and uncertainty, we face a clear warning: sustainability is no longer a future ambition. It is a business imperative. The events of 2025 reinforced the urgent need for resilient infrastructure, adaptive operations, and long-term stewardship.
TWC is Taiwan’s main water supply company and bears the critical responsibility of providing industrial water that supports Taiwan’s position at the core of the global high-tech supply chain. Our mission is to “safeguard every drop of water, ensure stable supply, and deliver high-quality drinking water.” The water utility sector is no longer merely an infrastructure provider; it is a critical line of defence for national climate resilience and economic competitiveness. In this challenging era, we remain committed to advancing water supply resilience, technological innovation, climate action, financial resilience, and social inclusion.
Building Comprehensive Water Supply Resilience by Integrated Management
Under the pressure of changing drought and flood patterns and increasingly intense natural disasters in Taiwan, our water supply resilience has been repeatedly tested. “Sufficient Supply, Superior Quality” remains a mission TWC members never forget. We continue to follow overarching plans and guidelines, including the “National Water Resources Master Plan” and the “Forward-Looking Infrastructure Development Program – Water Environments.” Centered on the core strategies of “Diversified Water Sources, Strong Backup, Promoting Water Conservation, and Reducing Leakage,” we are advancing key water resilience plans.
In terms of management, we consider operations from a watershed perspective and review our management zoning. In 2025, the downstream water supply project of the Niaozueitan Artificial Lake (鳥嘴潭人工湖) was completed, providing 210,000 tons of surface water daily to Changhua and 60,000 tons to Nantou. TWC therefore integrated Nantou and Changhua counties—which belong to the Wu River (烏溪) and Zhuoshui River (濁水溪) systems—under the same management branch, with the Nantou area transferred from the Fourth Branch to the Eleventh Branch. This follows the principle of “managing water supply areas sharing the same source under one branch,” centralising responsibilities for water source dispatching, inspection, water treatment operations, and business management, thereby improving watershed management efficiency. For dispatching capacity, we continue to promote cross-regional backup pipeline projects to strengthen interconnections among the northern, central, and southern water supply systems. In August last year, the “Fuzhou Pumping Station to Banxin Plant Pipeline (7) Shield Tunneling Project,” which supports the resilience of the Banxin water supply system, was successfully completed, significantly enhancing northern dispatching capacity. For distribution network maintenance and leakage reduction, TWC has extensively promoted smart and AI applications in recent years with initial success. Through sensing technology and analysis, we can locate leaking pipelines more efficiently for repair and reduce resource waste.
Faced with natural disasters, TWC has refined its response capabilities through repeated experience. During last year’s Matai’an River disaster, we immediately established a forward command post, coordinated personnel for a full-scale response, set up 33 temporary water supply stations, and deployed 28 water trucks to meet public needs. TWC also worked with the Army, the Water Resources Agency, and local authorities to repair water supply facilities, while a special task force composed of TWC and Taiwan Power Company conducted on-site inspections to assess local water and electricity maintenance needs. In addition, we waived all water bills for affected users from September to October to ease the burden of social reconstruction.
Revolutionizing Water Supply Services and Leak Detection Efficiency with Innovative Technology
AI development is sweeping the globe and driving rapid growth in smart tools. TWC understands that, given limited resources, the only viable path forward is to leverage technology, promote smart operations, and continue innovating. While the public focuses on the energy demand pressures created by AI development, TWC is also looking ahead and closely assessing the potential impact of AI and data centre expansion on water demand. We therefore continue to develop potential applications carefully, seeking to create a forward-looking and sustainable water utility model on this technology island.
In 2025, TWC further promoted smart operations across services, operations, and management. On the service side, we introduced smart meter reading, a water usage behaviour analysis platform, intelligent customer service, and online pipeline management. On the operations and management side, we continue to optimise the smart use of water treatment plants and water supply facilities to enhance overall energy efficiency. This includes AI-enabled precision dosing, AI acoustic leak-detection technology, smart water quality sampling, and uncrewed vehicles and vessels. Through the “Water Supply Monitoring Platform,” we use digital technology to upgrade monitoring techniques, reduce failure rates and maintenance costs, and improve management decision-making and emergency response efficiency.
By introducing a comprehensive technology-based leak-detection process, TWC actively monitors supply conditions and targets leakage hotspots, thereby improving pipeline repair efficiency and water supply stability. Building on this foundation, we expect to expand interactive leak-detection technologies by the end of 2026 to further enhance leak-detection efficiency. In 2025, the Company detected 4,003 underground leaks, nearly 40% of which were found using auxiliary leak-detection technologies.
People-Centric: Co-creating a Safer, More Inclusive Society
Water is the foundation of social equity and resilience. To ensure everyone has access to safe and affordable tap water, TWC has long worked to complete the “water supply puzzle” across Taiwan. Focusing on rural areas with lower water supply coverage, we actively support the government’s improvement plans for communities without tap water. We hold briefing sessions in townships to understand local needs, and construct water treatment plants, wells, and facilities using hyporheic water to increase supply capacity. For example, tap water coverage in Pingtung increased from 49.39% in 2016 to 73.25% in 2025, significantly improving residents’ water conditions and supporting UN SDG 6: “Clean Water and Sanitation.”
While expanding coverage, we also focus on water quality and safety for existing users. In response to long-standing issues of unstable water supply in older highland communities across Taiwan due to terrain, ageing pipelines, and outdated equipment, TWC supported the government’s “Improvement Plan for Pressurised Water Receiving Equipment in Old Highland Communities.” Through a public-private partnership model, TWC helped communities upgrade pressurised water receiving equipment and replace pipelines with high-quality ductile iron pipes (DIP) and stainless steel corrugated pipes (SSP), effectively improving water supply stability and safety.
TWC respects "Gender Equality" and "Social Inclusion". When promoting water supply projects, we proactively hold briefing sessions deep within communities, extensively listening to the opinions of women and diverse groups, respecting differences, and eliminating discrimination to promote substantive equality and ensure that communication and decision-making processes are more inclusive.
Building Robust Financial Resilience and Governance
For over fifty years, TWC has cared for civilian livelihoods and economic development. The current water tariff is not profit-driven. However, TWC still does its utmost to strengthen its financial position and resilience. Through various methods, we control costs and generate revenue while implementing penness and transparency, regularly holding “Operational Revenue and Expenditure Control Meetings” to track and review spending and income. On the other hand, we continuously implements enterprise risk identification and management to reduce operational and management risks. In 2025, TWC initiated climate-related impact analyses, conducting climate risks identification and assessing the scope and magnitude of potential financial impacts from climate risks and taking preventive measures.
TWC is Taiwan’s main water supply company and bears the critical responsibility of providing industrial water that supports Taiwan’s position at the core of the global high-tech supply chain. Our mission is to “safeguard every drop of water, ensure stable supply, and deliver high-quality drinking water.” The water utility sector is no longer merely an infrastructure provider; it is a critical line of defence for national climate resilience and economic competitiveness. In this challenging era, we remain committed to advancing water supply resilience, technological innovation, climate action, financial resilience, and social inclusion.
Building Comprehensive Water Supply Resilience by Integrated Management
Under the pressure of changing drought and flood patterns and increasingly intense natural disasters in Taiwan, our water supply resilience has been repeatedly tested. “Sufficient Supply, Superior Quality” remains a mission TWC members never forget. We continue to follow overarching plans and guidelines, including the “National Water Resources Master Plan” and the “Forward-Looking Infrastructure Development Program – Water Environments.” Centered on the core strategies of “Diversified Water Sources, Strong Backup, Promoting Water Conservation, and Reducing Leakage,” we are advancing key water resilience plans.
In terms of management, we consider operations from a watershed perspective and review our management zoning. In 2025, the downstream water supply project of the Niaozueitan Artificial Lake (鳥嘴潭人工湖) was completed, providing 210,000 tons of surface water daily to Changhua and 60,000 tons to Nantou. TWC therefore integrated Nantou and Changhua counties—which belong to the Wu River (烏溪) and Zhuoshui River (濁水溪) systems—under the same management branch, with the Nantou area transferred from the Fourth Branch to the Eleventh Branch. This follows the principle of “managing water supply areas sharing the same source under one branch,” centralising responsibilities for water source dispatching, inspection, water treatment operations, and business management, thereby improving watershed management efficiency. For dispatching capacity, we continue to promote cross-regional backup pipeline projects to strengthen interconnections among the northern, central, and southern water supply systems. In August last year, the “Fuzhou Pumping Station to Banxin Plant Pipeline (7) Shield Tunneling Project,” which supports the resilience of the Banxin water supply system, was successfully completed, significantly enhancing northern dispatching capacity. For distribution network maintenance and leakage reduction, TWC has extensively promoted smart and AI applications in recent years with initial success. Through sensing technology and analysis, we can locate leaking pipelines more efficiently for repair and reduce resource waste.
Faced with natural disasters, TWC has refined its response capabilities through repeated experience. During last year’s Matai’an River disaster, we immediately established a forward command post, coordinated personnel for a full-scale response, set up 33 temporary water supply stations, and deployed 28 water trucks to meet public needs. TWC also worked with the Army, the Water Resources Agency, and local authorities to repair water supply facilities, while a special task force composed of TWC and Taiwan Power Company conducted on-site inspections to assess local water and electricity maintenance needs. In addition, we waived all water bills for affected users from September to October to ease the burden of social reconstruction.
Revolutionizing Water Supply Services and Leak Detection Efficiency with Innovative Technology
AI development is sweeping the globe and driving rapid growth in smart tools. TWC understands that, given limited resources, the only viable path forward is to leverage technology, promote smart operations, and continue innovating. While the public focuses on the energy demand pressures created by AI development, TWC is also looking ahead and closely assessing the potential impact of AI and data centre expansion on water demand. We therefore continue to develop potential applications carefully, seeking to create a forward-looking and sustainable water utility model on this technology island.
In 2025, TWC further promoted smart operations across services, operations, and management. On the service side, we introduced smart meter reading, a water usage behaviour analysis platform, intelligent customer service, and online pipeline management. On the operations and management side, we continue to optimise the smart use of water treatment plants and water supply facilities to enhance overall energy efficiency. This includes AI-enabled precision dosing, AI acoustic leak-detection technology, smart water quality sampling, and uncrewed vehicles and vessels. Through the “Water Supply Monitoring Platform,” we use digital technology to upgrade monitoring techniques, reduce failure rates and maintenance costs, and improve management decision-making and emergency response efficiency.
By introducing a comprehensive technology-based leak-detection process, TWC actively monitors supply conditions and targets leakage hotspots, thereby improving pipeline repair efficiency and water supply stability. Building on this foundation, we expect to expand interactive leak-detection technologies by the end of 2026 to further enhance leak-detection efficiency. In 2025, the Company detected 4,003 underground leaks, nearly 40% of which were found using auxiliary leak-detection technologies.
People-Centric: Co-creating a Safer, More Inclusive Society
Water is the foundation of social equity and resilience. To ensure everyone has access to safe and affordable tap water, TWC has long worked to complete the “water supply puzzle” across Taiwan. Focusing on rural areas with lower water supply coverage, we actively support the government’s improvement plans for communities without tap water. We hold briefing sessions in townships to understand local needs, and construct water treatment plants, wells, and facilities using hyporheic water to increase supply capacity. For example, tap water coverage in Pingtung increased from 49.39% in 2016 to 73.25% in 2025, significantly improving residents’ water conditions and supporting UN SDG 6: “Clean Water and Sanitation.”
While expanding coverage, we also focus on water quality and safety for existing users. In response to long-standing issues of unstable water supply in older highland communities across Taiwan due to terrain, ageing pipelines, and outdated equipment, TWC supported the government’s “Improvement Plan for Pressurised Water Receiving Equipment in Old Highland Communities.” Through a public-private partnership model, TWC helped communities upgrade pressurised water receiving equipment and replace pipelines with high-quality ductile iron pipes (DIP) and stainless steel corrugated pipes (SSP), effectively improving water supply stability and safety.
TWC respects "Gender Equality" and "Social Inclusion". When promoting water supply projects, we proactively hold briefing sessions deep within communities, extensively listening to the opinions of women and diverse groups, respecting differences, and eliminating discrimination to promote substantive equality and ensure that communication and decision-making processes are more inclusive.
Building Robust Financial Resilience and Governance
For over fifty years, TWC has cared for civilian livelihoods and economic development. The current water tariff is not profit-driven. However, TWC still does its utmost to strengthen its financial position and resilience. Through various methods, we control costs and generate revenue while implementing penness and transparency, regularly holding “Operational Revenue and Expenditure Control Meetings” to track and review spending and income. On the other hand, we continuously implements enterprise risk identification and management to reduce operational and management risks. In 2025, TWC initiated climate-related impact analyses, conducting climate risks identification and assessing the scope and magnitude of potential financial impacts from climate risks and taking preventive measures.
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