Taiwan Industrial Wastewater Treatment Market Key Takeaways

• The Taiwan industrial wastewater treatment market was valued at USD 12.45 billion in 2025 and is projected to grow from USD 13.35 billion in 2026 to USD 20.26 billion by 2032.
• The industry is projected to witness steady growth at a CAGR of 7.20% during 2026–2032.
• By offering, equipment dominates the market with approximately 62% share.
• By technology, membrane separation leads the technology segment with approximately 37% market share.
• The market exhibits a moderately fragmented structure, with the top five companies collectively accounting for approximately 45% of the market share.

Taiwan Industrial Wastewater Treatment Market Size and Outlook

The industrial wastewater treatment market in Taiwan reached USD 12.45 billion in 2025 and is projected to expand from USD 13.35 billion in 2026 to USD 20.26 billion by 2032, registering a CAGR of 7.20% across the forecast period.

This significant growth is driven by the rapid expansion of industrial water reuse infrastructure and increasingly stringent discharge standards across high water-consuming industries. Industrial end users, rather than residential or commercial consumers, remain the primary source of demand. A notable example is the Kaohsiung Linhai Water Resource Centre, which processes 55,000 cubic meters of sewage per day and supplies 33,000 cubic meters of reclaimed water daily to five industrial facilities within the Linhai Industrial Zone, including the Dalin Oil Refinery, LCY Chemical, and Sinopec.

The facility has been designed with expansion capacity to process 100,000 cubic meters of sewage per day and supply 60,000 cubic meters of reclaimed water per day (AECOM). Industries receiving reclaimed water must also pre-treat their wastewater to contractual quality standards before it is returned to the centralized reuse system, creating sustained demand for advanced treatment equipment, process technologies, and long-term operational services within individual manufacturing facilities.

Company-level sustainability initiatives further reinforce long-term market growth. In February 2025, United Microelectronics Corporation (UMC) received CDP's double 'A' rating for Climate Change and Water Security for the third consecutive year, reflecting its continued investment in industrial water management. The company operates dedicated copper wastewater recycling and ammonia nitrogen wastewater recycling systems across its semiconductor fabs, increasing its overall reclaimed water utilization rate to 23.7%, equivalent to approximately 5.47 million tons of water saved.

In addition, the adoption of contaminant-specific wastewater segregation requires separate treatment trains for different waste streams, increasing the number and complexity of treatment systems installed at each manufacturing site. As Taiwan moves toward stricter 2031 statutory water reuse and discharge requirements, industrial facilities are expected to transition from conventional end-of-pipe treatment to distributed, stream-specific wastewater treatment and resource recovery systems, supporting sustained demand for advanced industrial wastewater treatment technologies across the country's manufacturing sector.

Taiwan Industrial Wastewater Treatment Key Indicators

• According to the National Science and Technology Council (NSTC), Taiwan's three major science parks generated USD 182.1 billion in revenue in 2025, up 21.83% year-on-year. Rising semiconductor production has significantly increased fluoride-, ammonia nitrogen-, and CMP slurry-containing wastewater, driving sustained demand for advanced physical, chemical, biological, and membrane-based industrial wastewater treatment solutions.
• Taiwan ranked second globally in installed wafer fabrication capacity, reaching 5.8 million wafers per month in 2025, a 4% increase, according to SEMI's World Fab Forecast. Rising semiconductor production significantly increases ultrapure water consumption and process wastewater generation, driving sustained demand for advanced industrial wastewater treatment and water reuse solutions.
• As per the reports by Bureau of Industrial Parks, Ministry of Economic Affairs, Taiwan has launched nine new industrial parks covering over 560 hectares, expected to generate more than USD 3.1 billion in industrial output and create around 30,000 jobs. Their development is driving demand for centralized industrial wastewater treatment plants and collection network infrastructure.
• Reports stated by the Water Resources Agency (WRA), the Executive Yuan has approved 19 reclaimed water plants with a combined supply capacity of 628,100 tons per day. Expanding water reuse infrastructure is accelerating demand for membrane bioreactors (MBR), reverse osmosis (RO), and advanced polishing technologies, shifting investment toward high-purity industrial water reclamation systems.

Taiwan Industrial Wastewater Treatment Market Scope

Taiwan Wastewater Treatment Market Growth Drivers

Rapid Semiconductor Fab Expansion Intensifying Demand for Industrial Wastewater Reclamation Systems

Taiwan's expanding semiconductor manufacturing industry is a key driver of the industrial wastewater treatment market, as fabrication facilities require closed-loop systems capable of producing ultrapure water while treating and recycling large volumes of process wastewater. TSMC's Water Reclamation Plant at the Southern Taiwan Science Park, together with its Yongkang facility in Tainan, operational since 2023, currently supplies a combined 62,500 cubic meters of reclaimed water per day for semiconductor manufacturing, significantly expanding the country's advanced membrane-based water reuse capacity.

This momentum is supported by Taiwan's broader water reuse strategy, which targets a combined reclaimed water capacity of 334,000 cubic meters per day by 2026, backed by an investment of approximately USD 573 million. In addition, a memorandum of understanding has been signed for a 30,000 cubic meter per day reclaimed water project in Ciaotou, supported by around USD 169 million in investment. The project will supply TSMC's 12-inch wafer fabrication plant in Nanzih Industrial Park, where the total water demand of 118,000 cubic meters per day is expected to be met entirely through reclaimed water by 2028. These developments are driving sustained demand for advanced membrane, ion-exchange, and high-recovery industrial wastewater treatment technologies.

Recent Trends

Rising Adoption of Resource-Recovery and On-Site Wastewater Diversion Systems Across Semiconductor Fabs

Taiwan's industrial wastewater treatment market is witnessing a shift from conventional end-of-pipe treatment toward resource-recovery and on-site wastewater diversion systems, as semiconductor manufacturers prioritize circular water management, regulatory compliance, and resource efficiency. In June 2025, TSMC implemented its Ammonia Nitrogen Wastewater Diversion and Processing Inspection System at Fab 20 Phase 1, using degassing membrane technology to recover ammonia as ammonium sulphate. The system reduced discharged wastewater conductivity by 40%, lowered chemical reagent consumption by 30%, and is projected to deliver annual carbon savings of 8,950 tons with green benefits valued at USD 3.15 million.

The technology has since been incorporated into TSMC's standard design for future fabs and is being deployed across facilities using processes below N7. Further reinforcing this trend, United Microelectronics Corporation (UMC) launched its USD 57.5 million Circular Economy & Recycling Innovation Center at Fab 12A in December 2025. The facility is expected to divert 15,000 metric tons of waste annually, generate USD 3.09 million in economic value, and recover solvents, sulfuric acid, and copper sulphate for industrial reuse. As leading semiconductor manufacturers integrate resource recovery into standard fab design, demand is expected to accelerate for advanced membrane, biological treatment, solvent regeneration, acid reclamation, and metal recovery technologies across Taiwan's industrial wastewater treatment market.

Taiwan Industrial Wastewater Treatment Opportunities and Challenges

Escalating Water Pollution Control Fees on Heavy Metals and Ammonia Nitrogen Driving Adoption of Resource-Recovery Treatment Systems

Taiwan's Ministry of Environment finalized the first revision of its water pollution control fee schedule in a decade, increasing discharge fees for lead, nickel, and copper from USD 19.31/kg to USD 30.90/kg in 2026, with a further increase to USD 61.79/kg by 2031. The revised framework also expands fee coverage to zinc, tin, and ammonia nitrogen for the first time, affecting approximately 2,200 sewage system operators across industrial parks, science parks, power plants, and semiconductor, printed circuit board, and electroplating facilities. The higher charges significantly increase the operating cost of discharging metal- and ammonia-containing wastewater, encouraging industries to adopt advanced treatment technologies that reduce pollutant loads and improve compliance.

The revised fee structure also promotes resource recovery by allowing operators implementing technologies such as anaerobic fermentation for biogas generation and ammonia nitrogen recovery to claim fee deductions of up to 60% per payment period for a maximum of three years. Reflecting this shift, Cheng Loong Corporation invested USD 12.3 million in 2024 to upgrade water optimization systems at its Houli Paper Mill, incorporating anaerobic treatment and biogas power generation while achieving a 96.3% water recovery rate. These incentives are accelerating the transition from conventional end-of-pipe treatment toward resource-recovery-based industrial wastewater management.

Segmentation Insights

Mandatory Monitoring Compliance Accelerates Equipment Adoption Across Industrial Wastewater Facilities

Equipment accounts for approximately 62% of Taiwan's industrial wastewater treatment offering segment, driven by regulatory requirements that are increasingly converting compliance obligations into mandatory hardware investments. Enterprises and sewerage systems with permitted daily discharge volumes of 10,000 tons or more are required to install independent electronic meters and automatic water quality and quantity monitoring devices at critical treatment points under draft amendments announced by Taiwan's Ministry of Environment on September 17, 2025. These measures aim to strengthen digital monitoring and prevent data falsification, compelling high-volume industrial users, including semiconductor and electronics manufacturers across Hsinchu, Tainan, and Taichung science parks, to invest in treatment and monitoring equipment rather than relying solely on services.

Fab-level technology adoption further strengthens equipment demand. In 2024, TSMC introduced its Ammonia Nitrogen Wastewater Diversion and Processing Inspection System, which separates wastewater based on ammonia nitrogen concentration, directing low-concentration streams to biological treatment and high-concentration streams to degassing membrane processing. At Fab 20 Phase 1, the system achieved a 40% reduction in discharged wastewater conductivity and a 30% reduction in chemical reagent usage. Within this segment, monitoring & control systems are emerging as the fastest-adopting category as digital, tamper-resistant reporting becomes a mandatory requirement across Taiwan's industrial wastewater facilities. By offering the market is further segmented into the following sub-categories:

• Equipment
• Treatment Chemicals
• Services

Stringent Science Park Water Reuse Targets Strengthen Membrane Separation Leadership

Membrane Separation accounts for approximately 37% of Taiwan's industrial wastewater treatment market, driven by stringent water reclamation requirements across the country's Science Parks. Regulations require water reclamation rates exceeding 85% for manufacturing processes and 75% for entire factories, while limiting wastewater discharge to below 70% of total water intake. Conventional coagulation-sedimentation and biological treatment processes alone cannot consistently meet these requirements, making reverse osmosis (RO), nanofiltration (NF), and ultrafiltration (UF) the preferred technologies for high-tech manufacturers seeking regulatory compliance and water reuse.

Commercial-scale projects further demonstrate this leadership. CTCI Corporation operates TSMC's Southern Taiwan Science Park Water Reclamation Plant, which, as of September 2025, supplies 67,000 metric tons of recycled water per day for semiconductor manufacturing through biological treatment, ultrafiltration, and reverse osmosis, with capacity expected to exceed 100,000 metric tons per day by 2027.

Similarly, Forest Water Environmental Engineering operates the Yongkang Water Reclamation Center in Tainan, Taiwan's first facility dedicated to supplying reclaimed water to high-tech industries, where production increased from 8,000 cubic meters per day in 2022 to 15,500 cubic meters per day in 2024 under a design-build-operate contract with the Tainan City Water Resources Bureau through 2037. These projects demonstrate that membrane-based reclamation has become essential infrastructure supporting Taiwan's expanding science park ecosystem. By technology the market is further segmented into the following sub-categories:

• Physical Treatment
• Chemical Treatment
• Biological Treatment
• Membrane Separation
• Advanced Treatment & Disinfection

Taiwan Industrial Wastewater Treatment Competitive Landscape

The Taiwan industrial wastewater treatment market is moderately fragmented, with the top five companies, CTCI Corporation, ECOVE Environment Corporation, Forest Water Environmental Engineering Co., Ltd., HDEC Corporation, and WaterPark Environment Corp. (Gradiant Group), collectively accounting for approximately 45% of the market.

Major Companies in Taiwan Industrial Waste Water Treatment Market

• CTCI Corporation
• ECOVE Environment Corporation
• Forest Water Environmental Engineering Co., Ltd.
• HDEC Corporation
• WaterPark Environment Corp. (Gradiant Group)
• Veolia Water Technologies
• SUEZ
• Kurita Water Industries Ltd.
• Organo Corporation
• Nomura Micro Science Co., Ltd

Taiwan Industrial Wastewater Treatment News and Recent Developments

2025: Gradiant Launches Enhanced ForeverGone PFAS Destruction Platform for Taiwan's Semiconductor Sector

In 2025, Gradiant introduced its enhanced ForeverGone PFAS destruction platform at SEMICON Taiwan, combining micro-foam fractionation with electrooxidation to achieve 99–99.9% PFAS removal, including short-chain compounds, at a treatment cost of US$0.10–0.20/m³. Designed to meet Taiwan's 1.2 ppb PFAS discharge limit, the platform enhances advanced wastewater treatment capabilities for semiconductor manufacturers.

Impact: The launch accelerates the shift toward on-site PFAS destruction technologies, reducing dependence on conventional granular activated carbon (GAC) and ion-exchange systems while lowering treatment and hazardous waste disposal costs under increasingly stringent environmental regulations.

September 2025: TSMC and CTCI Expand Southern Taiwan Science Park Water Reclamation Capacity

In September 2025, TSMC and CTCI Corporation announced the expansion of the Southern Taiwan Science Park water recycling plant, increasing reclaimed water supply from 67,000 metric tons per day to over 100,000 metric tons per day by 2027. The project expands advanced treatment and water reuse capacity while reinforcing CTCI's long-term role in operating industrial reclamation infrastructure for semiconductor manufacturing.

Impact: The expansion strengthens long-term water security for Taiwan's semiconductor cluster, accelerates investment in large-scale water reclamation infrastructure, and raises entry barriers for new wastewater treatment providers by reinforcing CTCI's established position in science park water reuse operations.

2025: Google, Stantec, and Hsinchu City Government Launch Nature-Based Water Treatment Facility

In December 2025, Google, Stantec, Taiwan's Ministry of Environment, and the Hsinchu City Government initiated construction of a nature-based water treatment facility designed to treat more than 450 million gallons of water annually. The project aims to reduce pollution in the Xipuzi Drainage and support ecological restoration of the Touqian River basin. Google is contributing US$3 million toward the project, with construction expected to be completed by the end of 2026, followed by a 10-year operation and monitoring phase beginning in 2027.

Impact: The project expands adoption of nature-based treatment solutions as a complement to conventional mechanical and chemical wastewater systems, particularly for decentralized pollution sources. It also highlights a new funding model where technology companies support water infrastructure development through corporate water-stewardship commitments, creating additional investment opportunities beyond traditional government-funded treatment project